CN104848591A - Modular heat pump - Google Patents

Modular heat pump Download PDF

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Publication number
CN104848591A
CN104848591A CN201510270507.3A CN201510270507A CN104848591A CN 104848591 A CN104848591 A CN 104848591A CN 201510270507 A CN201510270507 A CN 201510270507A CN 104848591 A CN104848591 A CN 104848591A
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CN
China
Prior art keywords
heat pump
pump unit
pipeline
heat
heat exchanger
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Pending
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CN201510270507.3A
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Chinese (zh)
Inventor
刘雄
杨艳芳
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Individual
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Individual
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Priority to CN201510270507.3A priority Critical patent/CN104848591A/en
Publication of CN104848591A publication Critical patent/CN104848591A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a modular heat pump which at least comprises a first heat pump unit, a second heat pump unit, a first flow control valve of the first heat pump unit, a first flow control valve of the second pump unit, a low-pressure gas connecting pipe and a high-pressure liquid connecting pipe. One end of the first flow control valve of the first heat pump unit is connected with a sixty-first pipeline of the first heat pump unit through a user side heat exchanger of the first heat pump unit while the other side of the first flow control valve of the first heat pump unit is connected with a fifty-eighth pipeline of the first heat pump unit; one end of the first flow control valve of the second heat pump unit is connected with a sixty-second pipeline of the second heat pump unit through a user side heat exchanger of the second heat pump unit while the other end of the first flow control valve of the second heat pump unit is connected with a fifty-eighth pipeline of the second heat pump unit. During operation in wintertime, the modular heat pump can absorb heat and defrost from an outdoor environment; during defrosting, the modular heat pump can continue supplying heat to users.

Description

Modular heat pump
Technical field
The present invention relates to a kind of modular heat pump, belong to refrigeration technology field.
Background technology
Along with expanding economy, air source heat pump obtains a large amount of uses at civilian and industrial circle, and air source heat pump conventional is at present made up of compressor, cross valve, user side heat exchanger, heat source side heat exchanger, throttle mechanism etc. usually; During winter frost removing, general employing is against circulation hot gas defrosting, namely absorbed heat from user by user side heat exchanger, change the frost on heat source side heat exchanger, although this method is reliable, there is the counteracting of cold and hot amount, defrost process energy consumption is large, and during defrosting, not only to user's heat supply, also can not need siphon away heat from user.
In addition, because air source heat pump is made up of compressor, cross valve, user side heat exchanger, heat source side heat exchanger, throttle mechanism etc. usually, when the thermic load required for user is different, air source heat pump is in order to meet the heat demand of user, and the physical dimension of its compressor configured, cross valve, user side heat exchanger, heat source side heat exchanger, throttle mechanism will be different; Therefore, the air source heat pump of usual each manufacturer same type, according to the size of heating demand, can have the air source heat pump that series of structure dimensions is different; Therefore for production, because identical parts can not be used, form standardized production, that is: only use one or several standardized heat pump module, by the increase and decrease of heat pump module quantity, meet the difference of user's heating demand, therefore, the efficiency of production is low, and cost is generally higher.
Summary of the invention
The object of this invention is to provide a kind of modular heat pump be at least made up of two heat pump units, this modular heat pump, by the quantitative combination of heat pump unit, just can meet the heat demand of user; In addition, this modular heat pump is in the winter time in the course of work, can realize absorbing heat in environment defrost outdoor; Even when defrost, also can continue heat supply to user.
In order to overcome above-mentioned technology Problems existing, the technical scheme of technical solution problem of the present invention is:
1, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
2, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
3, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), gases at high pressure tube connector (66), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
4, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
5, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
6, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
7, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
8, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
9, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprise the compressing mechanism (1) of the first heat pump unit (100), the three-way flow of the first heat pump unit (100) to user side heat exchanger (4) of switching mechanism (90), the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), compressing mechanism (1) port of export of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the three-way flow of described first heat pump unit (100) node (91) of often opening to switching mechanism (90), the three-way flow of described first heat pump unit (100) is connected with compressing mechanism (1) arrival end of described first heat pump unit (100) to the low pressure node (93) of switching mechanism (90) by the 63 pipeline (63) of the first heat pump unit (100), the three-way flow of described first heat pump unit (100) is connected to the high voltage nodes (92) of switching mechanism (90) and the 62 pipeline (62) of the first heat pump unit (100),
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
10, a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprise the compressing mechanism (1) of the first heat pump unit (100), the three-way flow of the first heat pump unit (100) to user side heat exchanger (4) of switching mechanism (90), the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), compressing mechanism (1) port of export of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the three-way flow of described first heat pump unit (100) node (91) of often opening to switching mechanism (90), the three-way flow of described first heat pump unit (100) is connected with compressing mechanism (1) arrival end of described first heat pump unit (100) to the low pressure node (93) of switching mechanism (90) by the 63 pipeline (63) of the first heat pump unit (100), the three-way flow of described first heat pump unit (100) is connected to the high voltage nodes (92) of switching mechanism (90) and the 62 pipeline (62) of the first heat pump unit (100),
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises low-pressure gas tube connector (88), highly pressurised liquid tube connector (77); Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
Compared with prior art, its beneficial effect is in the present invention:
1., by the quantitative combination of heat pump unit, just can meet the heat demand of user, the production efficiency of heat pump manufacturer can be improved, reduce its production cost;
2., in the course of work in winter, can realize absorbing heat in environment defrost outdoor; Even when defrost, also can continue heat supply to user;
3. overall structure is simple;
4. the present invention is applicable to industry and civilian air source heat pump, is specially adapted to the occasion having defrosting demand winter.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 1 change programme schematic diagram;
Fig. 3 is the embodiment of the present invention 2 structural representation;
Fig. 4 is the embodiment of the present invention 3 structural representation;
Fig. 5 is the embodiment of the present invention 3 change programme schematic diagram;
Fig. 6 is the embodiment of the present invention 4 structural representation;
Fig. 7 is the embodiment of the present invention 5 structural representation;
Fig. 8 is the embodiment of the present invention 6 structural representation;
Fig. 9 is the embodiment of the present invention 5 change programme schematic diagram;
Figure 10 is the embodiment of the present invention 6 change programme schematic diagram;
Figure 11 is the embodiment of the present invention 7 structural representation;
Figure 12 is the embodiment of the present invention 7 change programme schematic diagram;
Figure 13 is the embodiment of the present invention 8 structural representation;
Figure 14 is the embodiment of the present invention 8 change programme schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, content of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the present embodiment is a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; Use outdoor air as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, gases at high pressure tube connector 66, highly pressurised liquid tube connector 77.
First heat pump unit 100 consists of the following components: compressing mechanism 1, cross valve 80, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7.Second heat pump unit 200 consists of the following components: compressing mechanism 1, cross valve 80, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7.
During normal work, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat in air outdoor; During defrost in winter, the heat source side heat exchanger 8 of two heat pump units carries out work respectively as condenser and evaporimeter.Workflow under each function is as described below respectively.
(1) heat-production functions
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Similarly, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.During work, the first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the user side heat exchanger 4 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, in order to control the hot water outlet water temperature of the first heat pump unit 100 and the second heat pump unit 200 user side heat exchanger 4 respectively, can an electric control valve be set respectively in its hot water circuit, utilizes the hot water outlet water temperature of electric control valve to the first heat pump unit 100 and the second heat pump unit 200 user side heat exchanger 4 arranged to regulate and control respectively.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.During work, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.The heat source side heat exchanger 8 of the second heat pump unit 200 is draw heat in air outdoor; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the user side heat exchanger 4 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 draw heat in air outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
In the course of work, the compressing mechanism 1 of two heat pump units is vented and is communicated with by gases at high pressure tube connector 66; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
(2) winter defrosting function
(1) to the defrost of the heat source side heat exchanger 8 of the second heat pump unit 200
When working under this scheme, the compressing mechanism 1 of the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 also normally works, for controlling the refrigerant flow by the second heat pump unit 200 heat source side heat exchanger 8.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The partial heat defrost that the heat source side heat exchanger 8 of the second heat pump unit 200 utilizes the heat source side heat exchanger 8 of the first heat pump unit 100 to draw in air outdoor; Another part heat in the user side heat exchanger 4 of the first heat pump unit 100 for the production of hot water.The user side heat exchanger 4 of the second heat pump unit 200 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates, and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the user side heat exchanger 4 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, the hot water outlet water temperature of electric control valve to the first heat pump unit 100 user side heat exchanger 4 arranged in user side heat exchanger 4 hot water circuit of the first heat pump unit 100 is utilized to control.
(2) to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100
When working under this scheme, the compressing mechanism 1 of the second heat pump unit 200 normally works; The compressing mechanism 1 of the first heat pump unit 100 does not work.The first throttle mechanism 7 of the second heat pump unit 200 normally works; The first throttle mechanism 7 of the first heat pump unit 100 also normally works, for controlling the refrigerant flow by the first heat pump unit 100 heat source side heat exchanger 8.The heat source side heat exchanger 8 of the second heat pump unit 200 is draw heat in air outdoor; The partial heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw in air outdoor; Another part heat in the user side heat exchanger 4 of the second heat pump unit 200 for the production of hot water.The user side heat exchanger 4 of the first heat pump unit 100 does not work.
During work, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.Cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the user side heat exchanger 4 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
During work, the hot water outlet water temperature of electric control valve to the second heat pump unit 200 user side heat exchanger 4 arranged in user side heat exchanger 4 hot water circuit of the second heat pump unit 200 is utilized to control.
The modular heat pump that scheme shown in Fig. 1 is made up of two heat pump units, but when practical application, according to the needs of user's thermic load, with reference to the principle of scheme shown in Fig. 1, the modular heat pump be made up of more heat pump units can also be formed, be similar to scheme shown in Fig. 9, scheme is by three heat pump units (the first heat pump unit 100 as shown in Figure 9, second heat pump unit 200, 3rd heat pump unit 300) modular heat pump that forms, when in the heat pump unit of scheme three shown in Fig. 9, when first flow direction control valve 41 is not set, just constitute the change programme of scheme shown in Fig. 1, this change programme is also connect in aggregates by gases at high pressure tube connector 66, highly pressurised liquid tube connector 77, in the course of work, equally also can realize all functions of scheme shown in Fig. 1.
For scheme shown in Fig. 1, in order to avoid carrying out in the process of defrost to heat source side heat exchanger 8, refrigerant liquid backflow enters the low-pressure side of cross valve 80, by increasing by first flow direction control valve 41 respectively in two heat pump units of scheme shown in Fig. 1, can be improved further scheme shown in Fig. 1.Different according to the installation site of the first flow direction control valve 41 (namely in the present invention) in systems in which, improvement project has following four kinds.
First flow direction control valve 41 one end of improvement project 1: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected (as shown in Figure 2) with the 58 pipeline 58 of the second heat pump unit 200.
First flow direction control valve 41 one end of improvement project 2: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
First flow direction control valve 41 one end of improvement project 3: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
First flow direction control valve 41 one end of improvement project 4: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
When practical application, the first flow direction control valve 41 in two heat pump units can respectively substitute by first check valve 21; After substituting, the connected mode of the first check valve 21 in above four improvement projects is as follows respectively.
First check valve 21 arrival end of improvement project 1: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first check valve 21 port of export of the second heat pump unit 200 is connected (as shown in Figure 2) with the 58 pipeline 58 of the second heat pump unit 200.
First check valve 21 port of export of improvement project 2: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and the second heat pump unit 200 first check valve 21 arrival end is connected with the second heat pump unit 200 the 61 pipeline 61.
First check valve 21 port of export of improvement project 3: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First check valve 21 arrival end of the second heat pump unit 200 is connected with the second heat pump unit 200 the 61 pipeline 61 by the user side heat exchanger 4 of the second heat pump unit 200, and first check valve 21 port of export of the second heat pump unit 200 is connected with the second heat pump unit 200 the 58 pipeline 58.
First check valve 21 arrival end of improvement project 4: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First check valve 21 port of export of the second heat pump unit 200 is connected with the second heat pump unit 200 the 58 pipeline 58 by the user side heat exchanger 4 of the second heat pump unit 200, and the first check valve 21 arrival end of the second heat pump unit 200 is connected with the second heat pump unit 200 the 61 pipeline 61.
Above improvement project can realize all functions shown in Fig. 1 described in scheme.
Embodiment 2
As shown in Figure 3, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; Use outdoor air as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, low-pressure gas tube connector 88, highly pressurised liquid tube connector 77.
First heat pump unit 100 consists of the following components: compressing mechanism 1, cross valve 80, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7, first flow direction control valve 41.In scheme shown in Fig. 3, the first flow direction control valve 41 of the first heat pump unit 100 substitute by first check valve 21.
Second heat pump unit 200 consists of the following components: compressing mechanism 1, cross valve 80, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7, first flow direction control valve 41.In scheme shown in Fig. 3, the first flow direction control valve 41 of the second heat pump unit 200 substitute by first check valve 21.
During normal work, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat in air outdoor; During defrost in winter, the heat source side heat exchanger 8 of two heat pump units carries out work respectively as condenser and evaporimeter.Workflow under each function is as described below respectively.
(1) heat-production functions
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Similarly, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 normally works, outdoor draw heat in air; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.First heat pump unit 100 first throttle mechanism 7 normally works; Second heat pump unit 200 first throttle mechanism 7 closes.First heat pump unit 100 user side heat exchanger 4 is for the production of hot water, and the second heat pump unit 200 user side heat exchanger 4 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, gets back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far completes and once circulate.
In the course of work of this programme, the hot water outlet water temperature of electric control valve to the first heat pump unit 100 user side heat exchanger 4 arranged is utilized to control, meanwhile, the electric control valve arranged is utilized to close the hot water circuit of the second heat pump unit 200 user side heat exchanger 4.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all works, draw heat in air outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 also all works.First heat pump unit 100 user side heat exchanger 4 is for the production of hot water, and the second heat pump unit 200 user side heat exchanger 4 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, the 58 pipeline 58 entering the first heat pump unit 100 is divided into two-way, the first via through the cross valve 80 low pressure node 83 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, enters the 63 pipeline 63 of the first heat pump unit 100 successively, second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of highly pressurised liquid tube connector 77, second heat pump unit 200, also enters the 63 pipeline 63 of the first heat pump unit 100 successively, two-way, after the 63 pipeline 63 of the first heat pump unit 100 mixes, is got back to again compressing mechanism 1 arrival end of the first heat pump unit 100, is so far completed and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.The heat source side heat exchanger 8 of the second heat pump unit 200 normally works, outdoor draw heat in air; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.The first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.The user side heat exchanger 4 of the first heat pump unit 100 does not work, and the user side heat exchanger 4 of the second heat pump unit 200 is for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, first check valve 21 arrival end of the second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, gets back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far completes and once circulate.
In the course of work of this function, the hot water outlet water temperature of electric control valve to the second heat pump unit 200 user side heat exchanger 4 arranged is utilized to control, meanwhile, the electric control valve arranged is utilized to close the hot water circuit of the first heat pump unit 100 user side heat exchanger 4.
(4) compressing mechanism 1 of scheme four: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all works, draw heat in air outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 also all normally works.First heat pump unit 100 user side heat exchanger 4 does not work, and the second heat pump unit 200 user side heat exchanger 4 is for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, first check valve 21 arrival end of the second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200, the 58 pipeline 58 entering the second heat pump unit 200 is divided into two-way, the first via through the cross valve 80 low pressure node 83 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, enters the 63 pipeline 63 of the second heat pump unit 200 successively, second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the 58 pipeline 58, first heat pump unit 100 of highly pressurised liquid tube connector 77, first heat pump unit 100, also enters the 63 pipeline 63 of the second heat pump unit 200 successively, two-way, after the 63 pipeline 63 of the second heat pump unit 200 mixes, is got back to again compressing mechanism 1 arrival end of the second heat pump unit 200, is so far completed and once circulate.
(5) compressing mechanism 1 of scheme five: the first heat pump unit 100 and the second heat pump unit 200 all normally works.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 also all normally works.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 draw heat in air outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, and first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, first check valve 21 arrival end of the second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
During work, compressing mechanism 1 air-breathing of two heat pump units is communicated with by low-pressure gas tube connector 88; Two heat pump unit refrigerant liquids are communicated with by highly pressurised liquid tube connector 77.
For the scheme five under scheme heat-production functions shown in the present embodiment Fig. 3, can be improved further by arranging second flow direction control valve 42 on its highly pressurised liquid tube connector 77.In the course of work, when the second flow direction control valve 42 is closed, the user side heat exchanger 4 of user side heat exchanger 4, second heat pump unit 200 of the first heat pump unit 100 can work under different condensation temperatures, produces high-temperature-hot-water and low-temperature water heating respectively; When the second flow direction control valve 42 is opened, the user side heat exchanger 4 of user side heat exchanger 4, second heat pump unit 200 of the first heat pump unit 100 can work under identical condensation temperature, produces the hot water of identical water temperature.Second flow direction control valve 42 can adopt magnetic valve usually.
(2) winter defrosting function
(1) to the defrost of the heat source side heat exchanger 8 of the second heat pump unit 200
When working under this scheme, the compressing mechanism 1 of the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.The first throttle mechanism 7 of the first heat pump unit 100 normally works; First throttle mechanism 7 standard-sized sheet of the second heat pump unit 200.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The heat defrost that the heat source side heat exchanger 8 of the second heat pump unit 200 utilizes the heat source side heat exchanger 8 of the first heat pump unit 100 to draw in air outdoor; The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates, and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, highly pressurised liquid tube connector 77, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, first heat pump unit 100 the 63 pipeline 63, low-pressure gas tube connector 88, second heat pump unit 200 the 63 pipeline 63, gets back to again the second heat pump unit 200 compressing mechanism 1 arrival end, so far completes and once circulate.
When working under this function, the electric control valve arranged in user side heat exchanger 4 hot water circuit of the first heat pump unit 100 and the second heat pump unit 200 is utilized to close the hot water circuit of two heat pump units.
(2) to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100
When working under this scheme, the compressing mechanism 1 of the second heat pump unit 200 does not work; The compressing mechanism 1 of the first heat pump unit 100 normally works.The first throttle mechanism 7 of the second heat pump unit 200 normally works; First throttle mechanism 7 standard-sized sheet of the first heat pump unit 100.The heat source side heat exchanger 8 of the second heat pump unit 200 is draw heat in air outdoor; The heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw in air outdoor; The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, highly pressurised liquid tube connector 77, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, low-pressure gas tube connector 88, 63 pipeline 63 of the first heat pump unit 100, gets back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far completes and once circulate.
When working under this function, similarly, the electric control valve arranged in user side heat exchanger 4 hot water circuit of the first heat pump unit 100 and the second heat pump unit 200 is utilized to close the hot water circuit of two heat pump units.
In scheme shown in Fig. 3, first check valve 21 of the first heat pump unit 100 is arranged on the 58 pipeline 58 of the first heat pump unit 100, its connected mode is: the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100.
Similar, first check valve 21 of the second heat pump unit 200 is also be arranged on the 58 pipeline 58 of the second heat pump unit 200, its connected mode is: the first check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
When practical application, the installation site of the first check valve 21 in the first heat pump unit 100 and the second heat pump unit 200 (namely in the present invention) in systems in which, except scheme shown in Fig. 3, can also adopt the improvement project 2 of scheme shown in the Fig. 1 described in embodiment 1, improvement project 3, improvement project 4.Above three change programmes also can realize all functions of scheme shown in Fig. 3.
The modular heat pump that scheme shown in Fig. 3 is made up of two heat pump units, but when practical application, according to the needs of user's thermic load, with reference to the principle of scheme shown in Fig. 3, the modular heat pump be made up of more heat pump units can also be formed, by three heat pump units (the first heat pump unit 100 as shown in Figure 10, second heat pump unit 200, 3rd heat pump unit 300) modular heat pump that forms, in scheme shown in Figure 10, when the first heat pump unit 100, second heat pump unit 200, the second throttle body 6 of the 3rd heat pump unit 300 respectively substitute by first check valve 21, and the arrival end of the first check valve 21 is connected with user side heat exchanger 4, the port of export of the first check valve 21 is when being connected with the 58 pipeline 58, namely scheme shown in Figure 10 constitutes the further change programme of scheme shown in Fig. 3, this further change programme is also connect in aggregates by low-pressure gas tube connector 88, highly pressurised liquid tube connector 77, in the course of work, equally also can realize all functions of scheme shown in Fig. 3.Further: scheme shown in Figure 10 is worked as according to the principle described in embodiment 2, to the heat source side heat exchanger 8 of the first heat pump unit 100, or second heat source side heat exchanger 8 of heat pump unit 200 when carrying out defrost, 3rd heat pump unit 300 can continue to user's heat supply, that is: by draw heat in the heat source side heat exchanger 8 of the 3rd heat pump unit 300 outdoor air, then by the user side heat exchanger 4 of the 3rd heat pump unit 300 for user produces hot water.During work, by the electric control valve arranged in user side heat exchanger 4 hot water circuit of the 3rd heat pump unit 300, can control the hot water outlet water temperature of the 3rd heat pump unit 300 user side heat exchanger 4.
Embodiment 3
As shown in Figure 4, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; First heat pump unit 100 uses outdoor air as low-temperature heat source, and the second heat pump unit 200 uses water as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, gases at high pressure tube connector 66, highly pressurised liquid tube connector 77.
First heat pump unit 100 is by following part: compressing mechanism 1, cross valve 80, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7.Second heat pump unit 200 is by following part: compressing mechanism 1, user side heat exchanger 4, heat source side heat exchanger 8, first throttle mechanism 7.
During normal work, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat respectively from water and outdoor air; During defrost in winter, the heat source side heat exchanger 8 of the first heat pump unit 100 is as condenser working.Workflow under each function is as described below respectively.
(1) heat-production functions
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the user side heat exchanger 4 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, to the control method of the hot water outlet water temperature of the first heat pump unit 100 and the second heat pump unit 200 user side heat exchanger 4, see the embodiment of the present invention 1 heat-production functions scheme one.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.During work, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the user side heat exchanger 4 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
During work, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The heat source side heat exchanger 8 of heat source side heat exchanger 8, second heat pump unit 200 of the first heat pump unit 100 draw heat in air and water outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
Scheme three under scheme heat-production functions shown in the present embodiment Fig. 4, in the course of work, the compressing mechanism 1 of two heat pump units is vented and is communicated with by gases at high pressure tube connector 66; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.During work, the heat source side heat exchanger 8 of two heat pump units can adopt different evaporating temperatures, respectively draw heat from water and outdoor air.
(2) defrosting function in winter (that is: to the defrost of the first heat pump unit 100 heat source side heat exchanger 8)
When working under this function, the compressing mechanism 1 of the second heat pump unit 200 normally works; The compressing mechanism 1 of the first heat pump unit 100 does not work.The first throttle mechanism 7 of the second heat pump unit 200 normally works; The first throttle mechanism 7 of the first heat pump unit 100 also normally works, for controlling the refrigerant flow of the heat source side heat exchanger 8 by the first heat pump unit 100.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The partial heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw from water; Another part heat in the user side heat exchanger 4 of the second heat pump unit 200 for the production of hot water.The user side heat exchanger 4 of the first heat pump unit 100 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the user side heat exchanger 4 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
During work, the hot water outlet water temperature of electric control valve to the user side heat exchanger 4 of the second heat pump unit 200 arranged in user side heat exchanger 4 hot water circuit of the second heat pump unit 200 is utilized to control.
When practical application, for scheme shown in Fig. 4, in order to avoid carrying out in the process of defrost to heat source side heat exchanger 8, refrigerant liquid backflow enters the low-pressure side of the first heat pump unit 100 cross valve 80, by increasing by first flow direction control valve 41 in the first heat pump unit 100 of scheme shown in Fig. 4, can be improved further scheme shown in Fig. 4.Different according to the installation site of the first flow direction control valve 41 (namely in the present invention) in systems in which, improvement project has following two kinds.
First flow direction control valve 41 one end of improvement project 1: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected (as shown in Figure 5) with the 58 pipeline 58 of the first heat pump unit 100.
First flow direction control valve 41 one end of improvement project 2: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100.
When practical application, the first flow direction control valve 41 in the first heat pump unit 100 can respectively substitute by first check valve 21; After substituting, the connected mode of the first check valve 21 in above two improvement projects is as follows respectively.
First check valve 21 arrival end of improvement project 1: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected (as shown in Figure 5) with the 58 pipeline 58 of the first heat pump unit 100.
First check valve 21 port of export of improvement project 2: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100.
When practical application, scheme shown in Fig. 4 is not in order to avoid when the compressing mechanism 1 of the second heat pump unit 200 works, the port of export of back flow of refrigerant to the second heat pump unit 200 compressing mechanism 1, second check valve 22 can be set at the port of export of the compressing mechanism 1 of the second heat pump unit 200, now, the connected mode of the second check valve 22 of this second heat pump unit 200 (namely in the present invention) is in systems in which: the second check valve 22 arrival end of the second heat pump unit 200 is connected with the port of export of the second heat pump unit 200 compressing mechanism 1, second check valve 22 port of export of the second heat pump unit 200 is connected with the 62 pipeline 62 of the second heat pump unit 200.
Above-described second check valve 22 that utilizes prevents the method for back flow of refrigerant to the second heat pump unit 200 compressing mechanism 1 port of export to be applicable to scheme described in all embodiments of the present invention;
The connected mode of above-described second check valve 22 in the second heat pump unit 200 is also applicable to scheme described in the embodiment of the present invention 1,2,5,6; Also the first heat pump unit 100 in all embodiments of the present invention is applicable to, now, the connected mode of the second check valve 22 in the first heat pump unit 100 is: the second check valve 22 arrival end of the first heat pump unit 100 is connected with the port of export of the first heat pump unit 100 compressing mechanism 1, and second check valve 22 port of export of the first heat pump unit 100 is connected with the 62 pipeline 62 of the first heat pump unit 100.
For the embodiment of the present invention 4, the connected mode of the second check valve 22 in the second heat pump unit 200 is: the second check valve 22 arrival end of the second heat pump unit 200 is connected with the port of export of the second heat pump unit 200 compressing mechanism 1, and second check valve 22 port of export of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
The change programme of scheme shown in above-mentioned Fig. 4 also can realize all functions of scheme shown in Fig. 4.
Embodiment 4
As shown in Figure 6, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; First heat pump unit 100 uses outdoor air as low-temperature heat source, and the second heat pump unit 200 uses water as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, low-pressure gas tube connector 88, highly pressurised liquid tube connector 77.
On system composition, compared with scheme shown in embodiment 2 Fig. 3, scheme shown in Fig. 6 is only in the second heat pump unit 200, second heat pump unit 200 cross valve 80 fewer than scheme shown in embodiment 2 Fig. 3; Other building block is all identical.
That is: if increase by second heat pump unit 200 cross valve 80 in scheme shown in Fig. 6, just constitute scheme shown in embodiment 2 Fig. 3, now, the connected mode of the second heat pump unit 200 cross valve 80 in scheme shown in Fig. 6 is: cross valve 80 high voltage nodes 81 of the second heat pump unit 200 is successively by the 62 pipeline 62 of the second heat pump unit 200, compressing mechanism 1 port of export of the second heat pump unit 200, compressing mechanism 1 arrival end of the second heat pump unit 200,63 pipeline 63 of the second heat pump unit 200 is connected with the cross valve 80 low pressure node 83 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200 is connected with the user side heat exchanger 4 of the second heat pump unit 200 by the 61 pipeline 61 of the second heat pump unit 200, the cross valve 80 second of the second heat pump unit 200 commutates node 84 successively by the 67 pipeline 67 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200 is connected with the first throttle mechanism 7 of the second heat pump unit 200.
When shown in Fig. 6, scheme normally works, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat respectively from water and outdoor air; During defrost in winter, the heat source side heat exchanger 8 of the first heat pump unit 100 is as condenser working.Workflow under each function is as described below respectively.
(1) heat-production functions
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 normally works, outdoor draw heat in air; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of hot water; The user side heat exchanger 4 of the second heat pump unit 200 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, gets back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far completes and once circulate.
During work, utilize the electric control valve arranged in the hot water circuit of the first heat pump unit 100 user side heat exchanger 4, the hot water outlet water temperature of the user side heat exchanger 4 of the first heat pump unit 100 is controlled, utilize the electric control valve arranged in the hot water circuit of the second heat pump unit 200 user side heat exchanger 4, close the hot water circuit of the second heat pump unit 200 user side heat exchanger 4.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all works, respectively draw heat in air and water outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of hot water; The user side heat exchanger 4 of the second heat pump unit 200 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, the 58 pipeline 58 entering the first heat pump unit 100 is divided into two-way, the first via through the cross valve 80 low pressure node 83 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, enters the 63 pipeline 63 of the first heat pump unit 100 successively, second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of highly pressurised liquid tube connector 77, second heat pump unit 200, also enters the 63 pipeline 63 of the first heat pump unit 100 successively, two-way, after the 63 pipeline 63 of the first heat pump unit 100 mixes, is got back to again compressing mechanism 1 arrival end of the first heat pump unit 100, is so far completed and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.The user side heat exchanger 4 of the first heat pump unit 100 does not work; The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, first check valve 21 arrival end of the second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(4) compressing mechanism 1 of scheme four: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, respectively draw heat in air and water outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all works.The user side heat exchanger 4 of the first heat pump unit 100 does not work; The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the first check valve 21 arrival end of user side heat exchanger 4, second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of the second heat pump unit 200, the 58 pipeline 58 entering the second heat pump unit 200 is divided into two-way; The first via through the heat source side heat exchanger 8 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, enters the 63 pipeline 63 of the second heat pump unit 200 successively; Second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the 58 pipeline 58, first heat pump unit 100 of highly pressurised liquid tube connector 77, first heat pump unit 100, also enters the 63 pipeline 63 of the second heat pump unit 200 successively; Two-way, after the 63 pipeline 63 of the second heat pump unit 200 mixes, is got back to again compressing mechanism 1 arrival end of the second heat pump unit 200, is so far completed and once circulate.
(5) compressing mechanism 1 of scheme five: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
During work, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The heat source side heat exchanger 8 of heat source side heat exchanger 8, second heat pump unit 200 of the first heat pump unit 100 draw heat in air and water outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, and first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, first check valve 21 arrival end of the second heat pump unit 200, first check valve 21 port of export of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
During work, compressing mechanism 1 air-breathing of two heat pump units is communicated with by low-pressure gas tube connector 88; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
For the scheme five under the above-mentioned heat-production functions of the present embodiment, can be improved further by arranging second flow direction control valve 42 on its highly pressurised liquid tube connector 77.In the course of work, when the second flow direction control valve 42 is closed, the user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 can work under different condensation temperatures, produces high-temperature-hot-water and low-temperature water heating respectively; When the second flow direction control valve 42 is opened, the first heat pump unit 100 can work with the user side heat exchanger 4 of the second heat pump unit 200 under identical condensation temperature, produces the hot water of identical water temperature.
For the scheme five under the above-mentioned heat-production functions of the present embodiment, can also be improved further by arranging the 3rd flow direction control valve 43 on its low-pressure gas tube connector 88.In the course of work, when the 3rd flow direction control valve 43 is closed, the heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 can work under different evaporating temperatures, respectively draw heat in air and water outdoor; When the 3rd flow direction control valve 43 is opened, the first heat pump unit 100 can work with the second heat pump unit 200 heat source side heat exchanger 8 under identical evaporating temperature, respectively draw heat in air and water outdoor.
(2) defrosting function in winter (that is: to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100)
When working under this function, the compressing mechanism 1 of the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.
The first throttle mechanism 7 of the second heat pump unit 200 normally works; First throttle mechanism 7 standard-sized sheet of the first heat pump unit 100.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw from water.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, highly pressurised liquid tube connector 77, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, low-pressure gas tube connector 88, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, utilize the electric control valve that user side heat exchanger 4 hot water circuit is arranged, close the hot water circuit flowing through two heat pump unit user side heat exchangers 4 respectively.
In scheme shown in Fig. 6, first check valve 21 of the first heat pump unit 100 and the second heat pump unit 200 is all be arranged on the 58 pipeline 58, their connected mode is: the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
When practical application, the installation site of the first check valve 21 of the first check valve 21, second heat pump unit 200 of the first heat pump unit 100 (namely in the present invention) in systems in which, also has following three change programmes.
First check valve 21 arrival end of change programme one: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and the first check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
First check valve 21 port of export of change programme two: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and the first check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
First check valve 21 port of export of change programme three: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First check valve 21 arrival end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first check valve 21 port of export of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
Noted earlier known according to the present embodiment: the first check valve 21 in two heat pump units is for substituting the first flow direction control valve 41, therefore for scheme shown in Fig. 6 and three kinds of change programmes thereof, the first flow direction control valve 41 four kinds of connected modes are in systems in which as follows.
First flow direction control valve 41 one end of scheme 1: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
First flow direction control valve 41 one end of scheme 2: the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
First flow direction control valve 41 one end of scheme 3: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200.
First flow direction control valve 41 one end of scheme 4: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 61 pipeline 61 of the first heat pump unit 100; First flow direction control valve 41 one end of second heat pump unit 200 is connected with the 61 pipeline 61 of the second heat pump unit 200 by the user side heat exchanger 4 of the second heat pump unit 200, and first flow direction control valve 41 other end of the second heat pump unit 200 is connected with the 58 pipeline 58 of the second heat pump unit 200.
The change programme of scheme shown in above-described Fig. 6 also can realize all functions of scheme shown in Fig. 6.
Embodiment 5
As shown in Figure 7, the present embodiment is a kind of modular heat pump with two heat pump units, for there being the occasion for cold-peace heat demand the whole year; Use outdoor air as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, gases at high pressure tube connector 66, highly pressurised liquid tube connector 77.
In scheme shown in Fig. 7, the building block of the first heat pump unit 100 and the second heat pump unit 200, compared with scheme shown in the embodiment of the present invention 1 Fig. 1, only adds first flow direction control valve 41 respectively; And as shown in Figure 7, the first flow direction control valve 41 that the first heat pump unit 100 and the second heat pump unit 200 increase all respectively substitute by the second throttle body 6.
During normal work, user side heat exchanger 4 winter as condenser, for user produces hot water; Summer as evaporimeter, for user produces chilled water.Heat source side heat exchanger 8 absorbs heat in air outdoor as evaporimeter winter; Summer, as condenser, distributes the condensation heat that refrigeration produces in environment; During defrost in winter, heat source side heat exchanger 8 is also as condenser working.Workflow under each function is as described below respectively.
(1) refrigerating function
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Similarly, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates, and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.During work, the second throttle body 6 of the first heat pump unit 100 normally works, and the second throttle body 6 of the second heat pump unit 200 is closed; First throttle mechanism 7 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.
The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of chilled water; The user side heat exchanger 4 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, and distributes the condensation heat that refrigeration produces in outdoor air.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the first throttle mechanism 7 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of user side heat exchanger 4, first heat pump unit 100 of second throttle body 6, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.During work, the second throttle body 6 of the second heat pump unit 200 normally works, and the second throttle body 6 of the first heat pump unit 100 is closed; First throttle mechanism 7 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.
The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of chilled water; The user side heat exchanger 4 of the first heat pump unit 100 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, and distributes the condensation heat that refrigeration produces in outdoor air.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the first throttle mechanism 7 of heat source side heat exchanger 8, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of second throttle body 6, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 and the second heat pump unit 200 all normally works.During work, the second throttle body 6 of the first heat pump unit 100 and the second heat pump unit 200 all normally works; First throttle mechanism 7 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, for the production of chilled water.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, and distributes the condensation heat that refrigeration produces in outdoor air.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the second throttle body 6 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the second throttle body 6 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
In the course of work, the compressing mechanism 1 of two heat pump units is vented and is communicated with by gases at high pressure tube connector 66; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
In the scheme three of the present embodiment refrigerating function, the user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 100 can adopt identical evaporating temperature, produces the chilled water of identical water temperature; Also different evaporating temperatures be can adopt, high temperature chilled water and cryogenic freezing water produced respectively.
(2) heat-production functions
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Similarly, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.Second throttle body 6 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of second throttle body 6, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the second throttle body 6 of user side heat exchanger 4, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, to the control method of the hot water outlet water temperature of the first heat pump unit 100 and the second heat pump unit 200 user side heat exchanger 4 see the embodiment of the present invention 1 heat-production functions scheme one.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.
During work, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.Second throttle body 6 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.The heat source side heat exchanger 8 of the second heat pump unit 200 is draw heat in air outdoor; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of second throttle body 6, first heat pump unit 100 of user side heat exchanger 4, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the second throttle body 6 of user side heat exchanger 4, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.Second throttle body 6 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 draw heat in air outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, the second throttle body 6 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, the second throttle body 6 of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
In the course of work, the compressing mechanism 1 of two heat pump units is vented and is communicated with by gases at high pressure tube connector 66; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
(3) winter defrosting function
(1) to the defrost of the heat source side heat exchanger 8 of the second heat pump unit 200
When working under this scheme, the compressing mechanism 1 of the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 also normally works, for controlling the refrigerant flow of the heat source side heat exchanger 8 by the second heat pump unit 200.Second throttle body 6 standard-sized sheet of the first heat pump unit 100, the second throttle body 6 of the second heat pump unit 200 is closed.The heat source side heat exchanger 8 of the first heat pump unit 100 is draw heat in air outdoor; The partial heat defrost that the heat source side heat exchanger 8 of the second heat pump unit 200 utilizes the heat source side heat exchanger 8 of the first heat pump unit 100 to draw in air outdoor; Another part heat in the user side heat exchanger 4 of the first heat pump unit 100 for the production of hot water.The user side heat exchanger 4 of the second heat pump unit 200 does not work.
During work, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates, and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates, and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel through the second throttle body 6 of user side heat exchanger 4, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, the hot water outlet water temperature of electric control valve to the user side heat exchanger 4 of the first heat pump unit 100 arranged in user side heat exchanger 4 hot water circuit of the first heat pump unit 100 is utilized to control; Even close hot water circuit.
(2) to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100
When working under this scheme, the compressing mechanism 1 of the second heat pump unit 200 normally works; The compressing mechanism 1 of the first heat pump unit 100 does not work.The first throttle mechanism 7 of the second heat pump unit 200 normally works; The first throttle mechanism 7 of the first heat pump unit 100 also normally works, for controlling the refrigerant flow of the heat source side heat exchanger 8 by the first heat pump unit 100.The second throttle body 6 of the first heat pump unit 100 is closed, second throttle body 6 standard-sized sheet of the second heat pump unit 200.The heat source side heat exchanger 8 of the second heat pump unit 200 is draw heat in air outdoor; The partial heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw in air outdoor; Another part heat in the user side heat exchanger 4 of the second heat pump unit 200 for the production of hot water.The user side heat exchanger 4 of the first heat pump unit 100 does not work.
During work, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates, and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.Cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of first throttle mechanism 7, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 200 successively; Second tunnel through the second throttle body 6 of user side heat exchanger 4, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the second heat pump unit 200, also enters the 58 pipeline 58 of the second heat pump unit 200 successively; Two-way is after the 58 pipeline 58 of the second heat pump unit 200 mixes; Again successively through the 63 pipeline 63 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
During work, the hot water outlet water temperature of electric control valve to the user side heat exchanger 4 of the second heat pump unit 200 arranged in user side heat exchanger 4 hot water circuit of the second heat pump unit 200 is utilized to control; Even close hot water circuit.
The modular heat pump that scheme shown in Fig. 7 is made up of two heat pump units, but when practical application, according to the needs of user's thermic load, with reference to the principle of scheme shown in Fig. 7, the modular heat pump be made up of more heat pump units can also be formed, by three heat pump units (the first heat pump unit 100 as shown in Figure 9, second heat pump unit 200, 3rd heat pump unit 300) modular heat pump that forms, this modular heat pump is also by gases at high pressure tube connector 66, highly pressurised liquid tube connector 77 connects in aggregates, in the course of work, equally also can realize all functions of scheme shown in Fig. 7.
Embodiment 6
As shown in Figure 8, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion for cold-peace heat demand the whole year; Use outdoor air as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, low-pressure gas tube connector 88, highly pressurised liquid tube connector 77.First heat pump unit 100 is identical with scheme shown in the embodiment of the present invention 5 Fig. 7 with the composition of the second heat pump unit 200.
Whole system forms, shown in scheme shown in the present embodiment Fig. 8 with embodiment 2 Fig. 3, scheme is identical, details part is uniquely unlike shown in embodiment 2 Fig. 3 the first heat pump unit 100 of scheme, in second heat pump unit 200, it is the first flow direction control valve 41 substituted with first check valve 21 in two heat pump units, and shown in the present embodiment Fig. 8 the first heat pump unit 100 of scheme, in second heat pump unit 200, it is the first flow direction control valve 41 substituted by a second throttle body 6 in two heat pump units, therefore scheme shown in the present embodiment Fig. 8 is applicable to there is the occasion for cold-peace heat demand the whole year.
When shown in the present embodiment Fig. 8, scheme normally works, user side heat exchanger 4 winter as condenser, for user produces hot water; Summer as evaporimeter, for user produces chilled water.Heat source side heat exchanger 8 absorbs heat in air outdoor as evaporimeter winter; Summer, as condenser, distributes the condensation heat that refrigeration produces in environment; During defrost in winter, heat source side heat exchanger 8 is also as condenser working.Workflow under each function is as described below respectively.
(1) refrigerating function
When working under this function, cross valve 80 high voltage nodes 81 of the first heat pump unit 100 and the cross valve 80 second of the first heat pump unit 100 node 84 that commutates communicates, and the cross valve 80 first of the first heat pump unit 100 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the first heat pump unit 100.Similarly, cross valve 80 high voltage nodes 81 of the second heat pump unit 200 and the cross valve 80 second of the second heat pump unit 200 node 84 that commutates communicates, and the cross valve 80 first of the second heat pump unit 200 node 82 that commutates communicates with the cross valve 80 low pressure node 83 of the second heat pump unit 200.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.During work, the second throttle body 6 of the first heat pump unit 100 normally works, first throttle mechanism 7 standard-sized sheet of the first heat pump unit 100.First throttle mechanism 7 and the second throttle body 6 of the second heat pump unit 200 are all closed.
The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of chilled water; The heat source side heat exchanger 8 of the first heat pump unit 100 also normally works, and distributes the condensation heat that refrigeration produces in outdoor air.The user side heat exchanger 4 of the second heat pump unit 200 and heat source side heat exchanger 8 do not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, cross valve 80 high voltage nodes 81 of the first heat pump unit 100, the cross valve 80 second commutation node 84 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the second throttle body 6 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, 61 pipeline 61 of the first heat pump unit 100, the cross valve 80 first commutation node 82 of the first heat pump unit 100, the cross valve 80 low pressure node 83 of the first heat pump unit 100, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.During work, the second throttle body 6 of the first heat pump unit 100 and the second heat pump unit 200 normally works, first throttle mechanism 7 standard-sized sheet of the first heat pump unit 100.The first throttle mechanism 7 of the second heat pump unit 200 closes.
The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, for the production of chilled water; The heat source side heat exchanger 8 of the first heat pump unit 100 also normally works, and distributes the condensation heat that refrigeration produces in outdoor air.The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the first throttle mechanism 7 of heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of cross valve 80 second commutation node 84, first heat pump unit 100 of cross valve 80 high voltage nodes 81, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of the first heat pump unit 100, the 58 pipeline 58 entering the first heat pump unit 100 is divided into two-way; The first via through the cross valve 80 low pressure node 83 of cross valve 80 first commutation node 82, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of user side heat exchanger 4, first heat pump unit 100 of second throttle body 6, first heat pump unit 100 of the first heat pump unit 100, enters the 63 pipeline 63 of the first heat pump unit 100 successively; Second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of cross valve 80 low pressure node 83, second heat pump unit 200 of cross valve 80 first commutation node 82, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of second throttle body 6, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of highly pressurised liquid tube connector 77, second heat pump unit 200, also enters the 63 pipeline 63 of the first heat pump unit 100 successively; Two-way, after the first heat pump unit 100 the 63 pipeline 63 mixing, is got back to again the first heat pump unit 100 compressing mechanism 1 arrival end, is so far completed and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.During work, the second throttle body 6 of the second heat pump unit 200 normally works, first throttle mechanism 7 standard-sized sheet of the second heat pump unit 200.First throttle mechanism 7 and the second throttle body 6 of the first heat pump unit 100 are all closed.
The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of chilled water; The heat source side heat exchanger 8 of the second heat pump unit 200 also normally works, and distributes the condensation heat that refrigeration produces in outdoor air.The user side heat exchanger 4 of the first heat pump unit 100 and heat source side heat exchanger 8 do not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 62 pipeline 62 of the second heat pump unit 200, cross valve 80 high voltage nodes 81 of the second heat pump unit 200, the cross valve 80 second commutation node 84 of the second heat pump unit 200, 67 pipeline 67 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, the first throttle mechanism 7 of the second heat pump unit 200, 58 pipeline 58 of the second heat pump unit 200, the second throttle body 6 of the second heat pump unit 200, the user side heat exchanger 4 of the second heat pump unit 200, 61 pipeline 61 of the second heat pump unit 200, the cross valve 80 first commutation node 82 of the second heat pump unit 200, the cross valve 80 low pressure node 83 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
(4) compressing mechanism 1 of scheme four: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.During work, the second throttle body 6 of the first heat pump unit 100 and the second heat pump unit 200 all normally works; First throttle mechanism 7 standard-sized sheet of the second heat pump unit 200, the first throttle mechanism 7 of the first heat pump unit 100 closes.
The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, for the production of chilled water; The heat source side heat exchanger 8 of the second heat pump unit 200 also normally works, and distributes the condensation heat that refrigeration produces in outdoor air.The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the first throttle mechanism 7 of heat source side heat exchanger 8, second heat pump unit 200 of the 67 pipeline 67, second heat pump unit 200 of cross valve 80 second commutation node 84, second heat pump unit 200 of cross valve 80 high voltage nodes 81, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, the 58 pipeline 58 entering the second heat pump unit 200 is divided into two-way; The first via through the cross valve 80 low pressure node 83 of cross valve 80 first commutation node 82, second heat pump unit 200 of the 61 pipeline 61, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of second throttle body 6, second heat pump unit 200 of the second heat pump unit 200, enters the 63 pipeline 63 of the second heat pump unit 200 successively; Second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of cross valve 80 low pressure node 83, first heat pump unit 100 of cross valve 80 first commutation node 82, first heat pump unit 100 of the 61 pipeline 61, first heat pump unit 100 of user side heat exchanger 4, first heat pump unit 100 of second throttle body 6, first heat pump unit 100 of the 58 pipeline 58, first heat pump unit 100 of highly pressurised liquid tube connector 77, first heat pump unit 100, also enters the 63 pipeline 63 of the second heat pump unit 200 successively; Two-way, after the second heat pump unit 200 the 63 pipeline 63 mixing, is got back to again the second heat pump unit 200 compressing mechanism 1 arrival end, is so far completed and once circulate.
(5) compressing mechanism 1 of scheme five: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
During work, the second throttle body 6 of the first heat pump unit 100 and the second heat pump unit 200 all normally works; First throttle mechanism 7 all standard-sized sheets of the first heat pump unit 100 and the second heat pump unit 200.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, for the production of chilled water.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 also all normally works, and distributes the condensation heat that refrigeration produces in outdoor air.
Its workflow is identical with the scheme three of embodiment 5 refrigerating function.In the course of work, compressing mechanism 1 air-breathing of two heat pump units is communicated with by low-pressure gas tube connector 88; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
For the scheme five under the present embodiment refrigerating function, can be improved further by arranging the 3rd flow direction control valve 43 on its low-pressure gas tube connector 88.In the course of work, when the 3rd flow direction control valve 43 is closed, the user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 can work under different evaporating temperatures, produces high temperature chilled water and cryogenic freezing water respectively; When the 3rd flow direction control valve 43 is opened, the first heat pump unit 100 can work with the user side heat exchanger 4 of the second heat pump unit 200 under identical evaporating temperature, produces the chilled water of identical water temperature.
(2) heat-production functions
Scheme shown in the present embodiment Fig. 8 also can realize all operating schemes of scheme shown in embodiment 2 Fig. 3 under heat-production functions, and when realizing identical operating scheme, except the second throttle body in two heat pump units, other building block in scheme shown in Fig. 8, the duty be in operation, role, and whole workflow is all identical with scheme shown in embodiment 2 Fig. 3.Be below scheme shown in the present embodiment Fig. 8 under heat-production functions, during all operating scheme of the scheme shown in embodiment 2 Fig. 3 that realizes under heat-production functions, the on off state of the second throttle body 6 of two heat pump units.
(1) second throttle body 6 standard-sized sheet of scheme one: the first heat pump unit 100; The second throttle body 6 of the second heat pump unit 200 is closed.
(2) second throttle body 6 standard-sized sheet of scheme two: the first heat pump unit 100; The second throttle body 6 of the second heat pump unit 200 is closed.
(3) second throttle body 6 of scheme three: the first heat pump unit 100 is closed; Second throttle body 6 standard-sized sheet of the second heat pump unit 200.
(4) second throttle body 6 of scheme four: the first heat pump unit 100 is closed; Second throttle body 6 standard-sized sheet of the second heat pump unit 200.
(5) second throttle body 6 all standard-sized sheets of scheme five: the first heat pump unit 100 and the second heat pump unit 200.
(3) winter defrosting function
Scheme shown in the present embodiment Fig. 8 also can realize all operating schemes of scheme shown in embodiment 2 Fig. 3 in the winter time under defrosting function, and when realizing identical operating scheme, except the second throttle body in two heat pump units, other building block in scheme shown in Fig. 8, the duty be in operation, role, and whole workflow is all identical with scheme shown in embodiment 2 Fig. 3.Below scheme shown in the present embodiment Fig. 8 in the winter time under defrosting function, during all operating scheme of the scheme shown in embodiment 2 Fig. 3 that realizes in the winter time under defrosting function, the on off state of the second throttle body 6 of two heat pump units.
(1) to the defrost of the heat source side heat exchanger 8 of the second heat pump unit 200, the second throttle body 6 of the first heat pump unit 100 and the second heat pump unit 200 is all closed.
(2) to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100, the second throttle body of the first heat pump unit 100 and the second heat pump unit 200 all 6 is closed.
The modular heat pump that scheme shown in Fig. 8 is made up of two heat pump units, but when practical application, according to the needs of user's thermic load, with reference to the principle of scheme shown in Fig. 8, the modular heat pump be made up of more heat pump units can also be formed, by three heat pump units (the first heat pump unit 100 as shown in Figure 10, second heat pump unit 200, 3rd heat pump unit 300) modular heat pump that forms, this modular heat pump is also by low-pressure gas tube connector 88, highly pressurised liquid tube connector 77 connects in aggregates, in the course of work, equally also can realize all functions of scheme shown in Fig. 8.
Further: scheme shown in Figure 10 is worked as according to the principle described in embodiment 6, to the heat source side heat exchanger 8 of the first heat pump unit 100, or second heat source side heat exchanger 8 of heat pump unit 200 when carrying out defrost, 3rd heat pump unit 300 can continue to user's heat supply, that is: by draw heat in the heat source side heat exchanger 8 of the 3rd heat pump unit 300 outdoor air, then by the user side heat exchanger 4 of the 3rd heat pump unit 300 for user produces hot water.During work, by the electric control valve arranged in user side heat exchanger 4 hot water circuit of the 3rd heat pump unit 300, can control the hot water outlet water temperature of the 3rd heat pump unit 300 user side heat exchanger 4.
Embodiment 7
As shown in figure 11, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; First heat pump unit 100 uses outdoor air as low-temperature heat source, and the second heat pump unit 200 uses water as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, gases at high pressure tube connector 66, highly pressurised liquid tube connector 77.
When shown in Figure 11, scheme normally works, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat respectively from water and outdoor air; During defrost in winter, the heat source side heat exchanger 8 of the first heat pump unit 100 is as condenser working.Workflow under each function is as described below respectively.
(1) heat-production functions
When working under this function, the three-way flow of the first heat pump unit 100 communicates to the three-way flow often opening node 91 and the first heat pump unit 100 of switching mechanism 90 to the low pressure node 93 of switching mechanism 90.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 normally works, outdoor draw heat in air; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of hot water; The user side heat exchanger 4 of the second heat pump unit 200 also normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, second heat pump unit 100 of the 62 pipeline 62, second heat pump unit 100 of gases at high pressure tube connector 66, second heat pump unit 200, enters the 58 pipeline 58 of the first heat pump unit 100 successively; Second tunnel, after the user side heat exchanger 4 of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes, again successively through the three-way flow of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100 to the three-way flow often opening node 91, first heat pump unit 100 of switching mechanism 90 to the 63 pipeline 63 of low pressure node 93, first heat pump unit 100 of switching mechanism 90, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.The user side heat exchanger 4 of user side heat exchanger 4, second heat pump unit 200 of the first heat pump unit 100 all normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, the 62 pipeline 62 entering the second heat pump unit 200 is divided into two-way; The first via through the 58 pipeline 58, the highly pressurised liquid tube connector 77 of user side heat exchanger 4, first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of gases at high pressure tube connector 66, first heat pump unit 200, enters the 58 pipeline 58 of the second heat pump unit 100 successively; Second tunnel, after the user side heat exchanger 4 of the second heat pump unit 100, also enters the 58 pipeline 58 of the second heat pump unit 100; Two-way is after the 58 pipeline 58 of the second heat pump unit 100 mixes, again successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 100 of first throttle mechanism 7, second heat pump unit 100 of the second heat pump unit 100, get back to again compressing mechanism 1 arrival end of the second heat pump unit 100, so far complete and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
During work, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The heat source side heat exchanger 8 of heat source side heat exchanger 8, second heat pump unit 200 of the first heat pump unit 100 draw heat in air and water outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the three-way flow of the first heat pump unit 100 often opens node 91 to switching mechanism 90, the three-way flow of the first heat pump unit 100 is to the low pressure node 93 of switching mechanism 90, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
During work, the compressing mechanism 1 of two heat pump units is vented and is communicated with by gases at high pressure tube connector 66; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
(2) defrosting function in winter (that is: to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100)
When working under this function, the compressing mechanism 1 of the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.
The first throttle mechanism 7 of the second heat pump unit 200 normally works; The first throttle mechanism 7 of the first heat pump unit 100 also normally works, for controlling the refrigerant vapour flow of the heat source side heat exchanger 8 by the first heat pump unit 100, and the refrigerant vapour amount namely for defrosting.
Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw from water; Meanwhile, the user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 all works, for the production of hot water.
During work, the three-way flow of the first heat pump unit 100 communicates to the three-way flow often opening node 91 and the first heat pump unit 100 of switching mechanism 90 to the high voltage nodes 92 of switching mechanism 90.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 100, the 62 pipeline 62 entering the second heat pump unit 100 is divided into two-way, the first via, after the user side heat exchanger 4 of the second heat pump unit 100, enters the 58 pipeline 58 of the second heat pump unit 100, second tunnel is through gases at high pressure tube connector 66, enter the 62 pipeline 62 of the first heat pump unit 200, be divided into two parts again, a part is after the user side heat exchanger 4 of the first heat pump unit 100, enter the 58 pipeline 58 of the first heat pump unit 100, another part successively through the three-way flow of the first heat pump unit 100 to the high voltage nodes 92 of switching mechanism 90, the three-way flow of the first heat pump unit 100 often opens node 91 to switching mechanism 90, 67 pipeline 67 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, also the 58 pipeline 58 of the first heat pump unit 100 is entered, two parts cold-producing medium is after the 58 pipeline 58 of the first heat pump unit 100 mixes, through highly pressurised liquid tube connector 77, also the 58 pipeline 58 of the second heat pump unit 200 is entered, after first via refrigerant mixed, successively through the first throttle mechanism 7 of the second heat pump unit 200, the heat source side heat exchanger 8 of the second heat pump unit 200, 63 pipeline 63 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 100, so far complete and once circulate.
Scheme shown in Figure 11 is when practical application, when the heat source side heat exchanger 8 of the second heat pump unit 200 is also outdoor in air during draw heat, by in scheme shown in Figure 11, increase by second heat pump unit 200 three-way flow to switching mechanism 90, can be improved further scheme shown in Figure 11, as shown in figure 12.
Now, second heat pump unit 200 three-way flow to the connected mode of switching mechanism 90 in scheme shown in Figure 12 is: the three-way flow of the second heat pump unit 100 often opens node 91 successively through the heat source side heat exchanger 8 of the 67 pipeline 67, second heat pump unit 100 of the second heat pump unit 100 to switching mechanism 90, is connected with the first throttle mechanism 7 of the second heat pump unit 100; The three-way flow of the second heat pump unit 100 is connected with compressing mechanism 1 arrival end of the second heat pump unit 100 to the low pressure node 93 of switching mechanism 90 by the 63 pipeline 63 of the second heat pump unit 100; The three-way flow of the second heat pump unit 100 is connected to the high voltage nodes 92 of switching mechanism 90 with the 62 pipeline 62 of the second heat pump unit 100.
Scheme shown in above-described Figure 12 also can realize all functions of scheme shown in Figure 11.
Embodiment 8
As shown in figure 13, the present embodiment is also a kind of modular heat pump with two heat pump units, for there being the occasion of hot water demand the whole year; First heat pump unit 100 uses outdoor air as low-temperature heat source, and the second heat pump unit 200 uses water as low-temperature heat source.Whole modular heat pump comprises following part: the first heat pump unit 100, second heat pump unit 200, low-pressure gas tube connector 88, highly pressurised liquid tube connector 77.
When shown in Figure 13, scheme normally works, user side heat exchanger 4 as condenser, for user produces hot water.Heat source side heat exchanger 8, as evaporimeter, absorbs heat respectively from water and outdoor air; During defrost in winter, the heat source side heat exchanger 8 of the first heat pump unit 100 is as condenser working.Workflow under each function is as described below respectively.
(1) heat-production functions
The three-way flow of the first heat pump unit 100 communicates to the three-way flow often opening node 91 and the first heat pump unit 100 of switching mechanism 90 to the low pressure node 93 of switching mechanism 90.
(1) compressing mechanism 1 of scheme one: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 normally works, outdoor draw heat in air; The heat source side heat exchanger 8 of the second heat pump unit 200 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 normally works; The first throttle mechanism 7 of the second heat pump unit 200 closes.The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of hot water; The user side heat exchanger 4 of the second heat pump unit 200 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the three-way flow of the first heat pump unit 100 often opens node 91 to switching mechanism 90, the three-way flow of the first heat pump unit 100 is to the low pressure node 93 of switching mechanism 90, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, utilize the electric control valve or magnetic valve that arrange in the hot water circuit of the second heat pump unit 200 user side heat exchanger 4, close the hot water circuit of the second heat pump unit 200 user side heat exchanger 4.
(2) compressing mechanism 1 of scheme two: the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all works, respectively draw heat in air and water outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The user side heat exchanger 4 of the first heat pump unit 100 normally works, for the production of hot water; The user side heat exchanger 4 of the second heat pump unit 200 does not work.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the first check valve 21 arrival end of user side heat exchanger 4, first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100 of the 62 pipeline 62, first heat pump unit 100 of the first heat pump unit 100, the 58 pipeline 58 entering the first heat pump unit 100 is divided into two-way; The first via successively through the three-way flow of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the first heat pump unit 100 to the low pressure node 93 of three-way flow to switching mechanism 90 often opening node 91, first heat pump unit 100 of switching mechanism 90, enter the 63 pipeline 63 of the first heat pump unit 100; Second tunnel through the 63 pipeline 63, the low-pressure gas tube connector 88 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of highly pressurised liquid tube connector 77, second heat pump unit 200, also enters the 63 pipeline 63 of the first heat pump unit 100 successively; Two-way, after the 63 pipeline 63 of the first heat pump unit 100 mixes, is got back to again compressing mechanism 1 arrival end of the first heat pump unit 100, is so far completed and once circulate.
(3) compressing mechanism 1 of scheme three: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat source side heat exchanger 8 of the first heat pump unit 100 does not work.
When working under this scheme, the first throttle mechanism 7 of the first heat pump unit 100 closes; The first throttle mechanism 7 of the second heat pump unit 200 normally works.The user side heat exchanger 4 of the first heat pump unit 100 does not work; The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far complete and once circulate.
During work, utilize the electric control valve or magnetic valve that arrange in the hot water circuit of the first heat pump unit 200 user side heat exchanger 4, close the hot water circuit of the first heat pump unit 200 user side heat exchanger 4.
(4) compressing mechanism 1 of scheme four: the first heat pump unit 100 does not work; The compressing mechanism 1 of the second heat pump unit 200 normally works.The heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 all normally works, respectively draw heat in air and water outdoor.The first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all works.The user side heat exchanger 4 of the first heat pump unit 100 does not work; The user side heat exchanger 4 of the second heat pump unit 200 normally works, for the production of hot water.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the user side heat exchanger 4 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, the 58 pipeline 58 entering the second heat pump unit 200 is divided into two-way; The first via through the heat source side heat exchanger 8 of first throttle mechanism 7, second heat pump unit 200 of the second heat pump unit 200, enters the 63 pipeline 63 of the second heat pump unit 200 successively; Second tunnel successively through the three-way flow of the 67 pipeline 67, first heat pump unit 100 of heat source side heat exchanger 8, first heat pump unit 100 of first throttle mechanism 7, first heat pump unit 100 of the 58 pipeline 58, first heat pump unit 100 of highly pressurised liquid tube connector 77, first heat pump unit 100 to the three-way flow often opening node 91, first heat pump unit 100 of switching mechanism 90 to the 63 pipeline 63 of low pressure node 93, first heat pump unit 200 of switching mechanism 90, also enter the 63 pipeline 63 of the second heat pump unit 200; Two-way, after the 63 pipeline 63 of the second heat pump unit 200 mixes, is got back to again compressing mechanism 1 arrival end of the second heat pump unit 200, is so far completed and once circulate.
(5) compressing mechanism 1 of scheme five: the first heat pump unit 100 and the second heat pump unit 200 all normally works.
During work, the first throttle mechanism 7 of the first heat pump unit 100 and the second heat pump unit 200 all normally works.The heat source side heat exchanger 8 of heat source side heat exchanger 8, second heat pump unit 200 of the first heat pump unit 100 draw heat in air and water outdoor respectively.The user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 is all for the production of hot water.
Its workflow is divided into two parts, first part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, successively through the 62 pipeline 62 of the first heat pump unit 100, the user side heat exchanger 4 of the first heat pump unit 100, first check valve 21 arrival end of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, 58 pipeline 58 of the first heat pump unit 100, the first throttle mechanism 7 of the first heat pump unit 100, the heat source side heat exchanger 8 of the first heat pump unit 100, 67 pipeline 67 of the first heat pump unit 100, the three-way flow of the first heat pump unit 100 often opens node 91 to switching mechanism 90, the three-way flow of the first heat pump unit 100 is to the low pressure node 93 of switching mechanism 90, 63 pipeline 63 of the first heat pump unit 100, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far the compressing mechanism 1 of the first heat pump unit 100 completes and once circulates,
Second part is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the second heat pump unit 200, successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of user side heat exchanger 4, second heat pump unit 200 of the 62 pipeline 62, second heat pump unit 200 of the second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the second heat pump unit 200, so far the compressing mechanism 1 of the second heat pump unit 200 completes and once circulates.
During work, compressing mechanism 1 air-breathing of two heat pump units is communicated with by low-pressure gas tube connector 88; The high pressure refrigerant liquid of two heat pump units is communicated with by highly pressurised liquid tube connector 77.
For the scheme five under the above-mentioned heat-production functions of the present embodiment, can be improved further by arranging second flow direction control valve 42 on its highly pressurised liquid tube connector 77.In the course of work, when the second flow direction control valve 42 is closed, the user side heat exchanger 4 of the first heat pump unit 100 and the second heat pump unit 200 can work under different condensation temperatures, produces high-temperature-hot-water and low-temperature water heating respectively; When the second flow direction control valve 42 is opened, the first heat pump unit 100 can work with the user side heat exchanger 4 of the second heat pump unit 200 under identical condensation temperature, produces the hot water of identical water temperature.
For the scheme five under the above-mentioned heat-production functions of the present embodiment, can also be improved further by arranging the 3rd flow direction control valve 43 on its low-pressure gas tube connector 88.In the course of work, when the 3rd flow direction control valve 43 is closed, the heat source side heat exchanger 8 of the first heat pump unit 100 and the second heat pump unit 200 can work under different evaporating temperatures, respectively draw heat in air and water outdoor; When the 3rd flow direction control valve 43 is opened, the first heat pump unit 100 can work with the second heat pump unit 200 heat source side heat exchanger 8 under identical evaporating temperature, respectively draw heat in air and water outdoor.
(2) defrosting function in winter (that is: to the defrost of the heat source side heat exchanger 8 of the first heat pump unit 100)
When working under this function, the compressing mechanism 1 of the first heat pump unit 100 normally works; The compressing mechanism 1 of the second heat pump unit 200 does not work.
The first throttle mechanism 7 of the second heat pump unit 200 normally works; The first throttle mechanism 7 of the first heat pump unit 100 also normally works, for controlling the refrigerant vapour flow of the heat source side heat exchanger 8 by the first heat pump unit 100, and the refrigerant vapour amount namely for defrosting.Heat source side heat exchanger 8 draw heat from water of the second heat pump unit 200; The heat defrost that the heat source side heat exchanger 8 of the first heat pump unit 100 utilizes the heat source side heat exchanger 8 of the second heat pump unit 200 to draw from water.The user side heat exchanger 4 of the first heat pump unit 100 normally works.The user side heat exchanger 4 of the second heat pump unit 200 does not work.
During work, the three-way flow of the first heat pump unit 100 communicates to the three-way flow often opening node 91 and the first heat pump unit 100 of switching mechanism 90 to the high voltage nodes 92 of switching mechanism 90.
Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export of the first heat pump unit 100, the 62 pipeline 62 entering the first heat pump unit 100 is divided into two-way; The first via successively through the three-way flow of the first heat pump unit 100 to the three-way flow of high voltage nodes 92, first heat pump unit 100 of switching mechanism 90 to the first throttle mechanism 7 often opening heat source side heat exchanger 8, first heat pump unit 100 of the 67 pipeline 67, first heat pump unit 100 of node 91, first heat pump unit 100 of switching mechanism 90, enter the 58 pipeline 58 of the first heat pump unit 100; Second tunnel through the first check valve 21 arrival end of user side heat exchanger 4, first heat pump unit 100 of the first heat pump unit 100, first check valve 21 port of export of the first heat pump unit 100, also enters the 58 pipeline 58 of the first heat pump unit 100 successively; Two-way is after the 58 pipeline 58 of the first heat pump unit 100 mixes, successively through the 63 pipeline 63 of heat source side heat exchanger 8, second heat pump unit 200, the 63 pipeline 63 of low-pressure gas tube connector 88, first heat pump unit 100 of first throttle mechanism 7, second heat pump unit 200 of the 58 pipeline 58, second heat pump unit 200 of highly pressurised liquid tube connector 77, second heat pump unit 200, get back to again compressing mechanism 1 arrival end of the first heat pump unit 100, so far complete and once circulate.
During work, utilize electric control valve or magnetic valve that user side heat exchanger 4 hot water circuit of the second heat pump unit 200 is arranged, close the hot water circuit flowing through the user side heat exchanger 4 of the second heat pump unit 200.
In scheme shown in Figure 13, first check valve 21 of the first heat pump unit 100 is arranged on the 58 pipeline 58, its connected mode is: the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 62 pipeline 62 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100.
When practical application, the installation site of the first check valve 21 of the first heat pump unit 100 (namely in the present invention) in systems in which, also has following change programme, that is: first check valve 21 port of export of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and the first check valve 21 arrival end of the first heat pump unit 100 is connected with the 62 pipeline 62 of the first heat pump unit 100.
Noted earlier known according to this description: the first check valve 21 in the first heat pump unit 100 is for substituting the first flow direction control valve 41, therefore for scheme shown in Figure 13 and change programme thereof, the first flow direction control valve 41 two kinds of connected modes are in systems in which as follows.
First flow direction control valve 41 one end of scheme 1: the first heat pump unit 100 is connected with the 62 pipeline 62 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100.
First flow direction control valve 41 one end of scheme 2: the first heat pump unit 100 is connected with the 58 pipeline 58 of the first heat pump unit 100 by the user side heat exchanger 4 of the first heat pump unit 100, and first flow direction control valve 41 other end of the first heat pump unit 100 is connected with the 62 pipeline 62 of the first heat pump unit 100.
In practical work process, the port of export of the compressing mechanism 1 of the second heat pump unit 100 is back in order to avoid refrigerant liquid, on the 62 pipeline the 62 or the 58 pipeline 58 of the second heat pump unit 100, it is identical in the connected mode of the first heat pump unit 100 with it that the connected mode of first flow direction control valve 41, first flow direction control valve 41 in system shown in Figure 13 can be set equally.That is:
First flow direction control valve 41 one end of scheme 1: the second heat pump unit 100 is connected with the 62 pipeline 62 of the second heat pump unit 100 by the user side heat exchanger 4 of the second heat pump unit 100, and first flow direction control valve 41 other end of the second heat pump unit 100 is connected (as shown in figure 14) with the 58 pipeline 58 of the second heat pump unit 100.
First flow direction control valve 41 one end of scheme 2: the second heat pump unit 100 is connected with the 58 pipeline 58 of the second heat pump unit 100 by the user side heat exchanger 4 of the second heat pump unit 100, and first flow direction control valve 41 other end of the second heat pump unit 100 is connected with the 62 pipeline 62 of the second heat pump unit 100.Equally, also the first flow direction control valve 41 can be substituted with first check valve 21 in the second heat pump unit 100, after substituting, the connected mode of the first check valve 21 in the second heat pump unit 100, the connected mode also with it in the first heat pump unit 100 is identical.That is:
First check valve 21 arrival end of scheme 1: the second heat pump unit 100 is connected with the 62 pipeline 62 of the second heat pump unit 100 by the user side heat exchanger 4 of the second heat pump unit 100, and first check valve 21 port of export of the second heat pump unit 100 is connected (as shown in figure 14) with the 58 pipeline 58 of the second heat pump unit 100.
First check valve 21 port of export of scheme 2: the second heat pump unit 100 is connected with the 58 pipeline 58 of the second heat pump unit 100 by the user side heat exchanger 4 of the second heat pump unit 100, and the first check valve 21 arrival end of the second heat pump unit 100 is connected with the 62 pipeline 62 of the second heat pump unit 100.
The change programme of scheme shown in above-described Figure 13 also can realize all functions of scheme shown in Figure 13.
The connected mode of above-described first check valve 21, first flow direction control valve 41 in scheme shown in Figure 13 is also applicable to scheme shown in embodiment 7 Figure 11 and Figure 12 respectively.
Scheme shown in Figure 13 is when practical application, when the heat source side heat exchanger 8 of the second heat pump unit 200 is also outdoor in air during draw heat, by in scheme shown in Figure 13, increase by second heat pump unit 200 three-way flow to switching mechanism 90, can be improved further scheme shown in Figure 13, as shown in figure 14.
Now, second heat pump unit 200 three-way flow to the connected mode of switching mechanism 90 in scheme shown in Figure 14 is: the three-way flow of the second heat pump unit 100 often opens node 91 successively through the heat source side heat exchanger 8 of the 67 pipeline 67, second heat pump unit 100 of the second heat pump unit 100 to switching mechanism 90, is connected with the first throttle mechanism 7 of the second heat pump unit 100; The three-way flow of the second heat pump unit 100 is connected with compressing mechanism 1 arrival end of the second heat pump unit 100 to the low pressure node 93 of switching mechanism 90 by the 63 pipeline 63 of the second heat pump unit 100; The three-way flow of the second heat pump unit 100 is connected to the high voltage nodes 92 of switching mechanism 90 with the 62 pipeline 62 of the second heat pump unit 100.
Scheme shown in above-described Figure 14 also can realize all functions of scheme shown in Figure 13.
In the scheme of the above-mentioned all embodiments of the present invention, any one check valve in described first check valve 21, second check valve 22 can both adopt magnetic valve, any one in have the throttle mechanism of turn-off function (such as: electric expansion valve) or flow control device substitutes.
In the scheme of the above-mentioned all embodiments of the present invention, compressing mechanism 1 can adopt in following compressor any one: screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor, digital scroll compressor; Compressing mechanism 1 also can be variable conpacitance compressor (such as: frequency-changeable compressor, digital scroll compressor), or constant speed compressor.In the scheme of the above-mentioned all embodiments of the present invention, the compressor bank that compressing mechanism 1 can also be made up of at least two variable conpacitance compressors, or the compressor bank be made up of at least two constant speed compressors; In addition, compressing mechanism 1 compressor bank that also can be made up of at least one variable conpacitance compressor and at least one constant speed compressor.
In the scheme of the above-mentioned all embodiments of the present invention, any one in user side heat exchanger 4 or heat source side heat exchanger 8, except can being refrigerant-air heat exchanger, also can be the heat exchanger of cold-producing medium-water-to-water heat exchanger or other kind; During as cold-producing medium-water-to-water heat exchanger, can adopt in volumetric heat exchanger, plate type heat exchanger, shell and tube exchanger or double pipe heat exchanger any one.When any one in user side heat exchanger 4 or heat source side heat exchanger 8 is as refrigerant-air heat exchanger, usually adopt finned heat exchanger, the fin of described finned heat exchanger is generally aluminum or aluminum alloy material, and the occasion special at some also uses copper material.
In the scheme of the above-mentioned all embodiments of the present invention, any one in first throttle mechanism 7, second throttle body 6, even all throttle mechanisms can both adopt the throttle mechanism (such as: electric expansion valve) with turn-off function substitute.
In the scheme of the above-mentioned all embodiments of the present invention, any one in the first flow direction control valve 41, second flow direction control valve 42, the 3rd flow direction control valve 43, even all flow direction control valves can both adopt magnetic valve or have turn-off function flow control device substitute.In the scheme of the above-mentioned all embodiments of the present invention, described all pipelines are all copper pipes.

Claims (11)

1. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
2. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
3. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), gases at high pressure tube connector (66), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
4. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
5. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
6. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
7. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
8. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprises the compressing mechanism (1) of the first heat pump unit (100), the cross valve (80) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100); cross valve (80) high voltage nodes (81) of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), compressing mechanism (1) port of export of the first heat pump unit (100), compressing mechanism (1) arrival end of the first heat pump unit (100), 63 pipeline (63) of the first heat pump unit (100) is connected with cross valve (80) the low pressure node (83) of described first heat pump unit (100), the cross valve (80) first of described first heat pump unit (100) commutates node (82) successively by the 61 pipeline (61) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the cross valve (80) second of described first heat pump unit (100) node (84) that commutates,
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), the cross valve (80) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200); cross valve (80) high voltage nodes (81) of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first of described second heat pump unit (200) commutates node (82) successively by the 61 pipeline (61) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 67 pipeline (67) and the cross valve (80) second of described second heat pump unit (200) of the second heat pump unit (200) node (84) that commutates is connected,
It is characterized in that: this modular heat pump also comprises the first flow direction control valve (41), first flow direction control valve (41) of the second heat pump unit (200), low-pressure gas tube connector (88), the highly pressurised liquid tube connector (77) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described first heat pump unit (100) is connected with the 61 pipeline (61) of the first heat pump unit (100) by user side heat exchanger (4) of the first heat pump unit (100), and the first flow direction control valve (41) other end of described first heat pump unit (100) is connected with the 58 pipeline (58) of the first heat pump unit (100);
The first flow direction control valve (41) one end of described second heat pump unit (200) is connected with the 61 pipeline (61) of the second heat pump unit (200) by user side heat exchanger (4) of the second heat pump unit (200), and the first flow direction control valve (41) other end of described second heat pump unit (200) is connected with the 58 pipeline (58) of the second heat pump unit (200);
Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200);
Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
9. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprise the compressing mechanism (1) of the first heat pump unit (100), the three-way flow of the first heat pump unit (100) to user side heat exchanger (4) of switching mechanism (90), the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), compressing mechanism (1) port of export of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the three-way flow of described first heat pump unit (100) node (91) of often opening to switching mechanism (90), the three-way flow of described first heat pump unit (100) is connected with compressing mechanism (1) arrival end of described first heat pump unit (100) to the low pressure node (93) of switching mechanism (90) by the 63 pipeline (63) of the first heat pump unit (100), the three-way flow of described first heat pump unit (100) is connected to the high voltage nodes (92) of switching mechanism (90) and the 62 pipeline (62) of the first heat pump unit (100),
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises gases at high pressure tube connector (66), highly pressurised liquid tube connector (77); Described gases at high pressure tube connector (66) one end is connected with the 62 pipeline (62) of the first heat pump unit (100), and described gases at high pressure tube connector (66) other end is connected with the 62 pipeline (62) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
10. a modular heat pump, at least comprises the first heat pump unit (100), the second heat pump unit (200);
Described first heat pump unit (100) at least comprise the compressing mechanism (1) of the first heat pump unit (100), the three-way flow of the first heat pump unit (100) to user side heat exchanger (4) of switching mechanism (90), the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), compressing mechanism (1) port of export of described first heat pump unit (100) is successively by the 62 pipeline (62) of the first heat pump unit (100), user side heat exchanger (4) of the first heat pump unit (100), 58 pipeline (58) of the first heat pump unit (100), the first throttle mechanism (7) of the first heat pump unit (100), the heat source side heat exchanger (8) of the first heat pump unit (100), 67 pipeline (67) of the first heat pump unit (100), be connected with the three-way flow of described first heat pump unit (100) node (91) of often opening to switching mechanism (90), the three-way flow of described first heat pump unit (100) is connected with compressing mechanism (1) arrival end of described first heat pump unit (100) to the low pressure node (93) of switching mechanism (90) by the 63 pipeline (63) of the first heat pump unit (100), the three-way flow of described first heat pump unit (100) is connected to the high voltage nodes (92) of switching mechanism (90) and the 62 pipeline (62) of the first heat pump unit (100),
Described second heat pump unit (200) at least comprises the compressing mechanism (1) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), compressing mechanism (1) port of export of described second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), user side heat exchanger (4) of the second heat pump unit (200), 58 pipeline (58) of the second heat pump unit (200), the first throttle mechanism (7) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with compressing mechanism (1) arrival end of described second heat pump unit (200),
It is characterized in that: this modular heat pump also comprises low-pressure gas tube connector (88), highly pressurised liquid tube connector (77); Described low-pressure gas tube connector (88) one end is connected with the 63 pipeline (63) of the first heat pump unit (100), and described low-pressure gas tube connector (88) other end is connected with the 63 pipeline (63) of the second heat pump unit (200); Described highly pressurised liquid tube connector (77) one end is connected with the 58 pipeline (58) of the first heat pump unit (100), and described highly pressurised liquid tube connector (77) other end is connected with the 58 pipeline (58) of the second heat pump unit (200).
11. modular heat pumps according to claim arbitrary in claim 5 to 7, it is characterized in that cross valve (80) high voltage nodes (81) of one second heat pump unit (200) is successively by the 62 pipeline (62) of the second heat pump unit (200), compressing mechanism (1) port of export of the second heat pump unit (200), compressing mechanism (1) arrival end of the second heat pump unit (200), 63 pipeline (63) of the second heat pump unit (200) is connected with cross valve (80) the low pressure node (83) of described second heat pump unit (200), the cross valve (80) first commutation node (82) of described second heat pump unit (200) is connected with user side heat exchanger (4) of the second heat pump unit (200) by the 61 pipeline (61) of the second heat pump unit (200), the cross valve (80) second of described second heat pump unit (200) commutates node (84) successively by the 67 pipeline (67) of the second heat pump unit (200), the heat source side heat exchanger (8) of the second heat pump unit (200) is connected with the first throttle mechanism (7) of the second heat pump unit (200).
CN201510270507.3A 2015-02-03 2015-05-17 Modular heat pump Pending CN104848591A (en)

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