CN104654679B - A kind of condenser system, air-cooled type air conditioning system and control method - Google Patents

A kind of condenser system, air-cooled type air conditioning system and control method Download PDF

Info

Publication number
CN104654679B
CN104654679B CN201510077072.0A CN201510077072A CN104654679B CN 104654679 B CN104654679 B CN 104654679B CN 201510077072 A CN201510077072 A CN 201510077072A CN 104654679 B CN104654679 B CN 104654679B
Authority
CN
China
Prior art keywords
condenser
control valve
bypass line
condensing unit
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510077072.0A
Other languages
Chinese (zh)
Other versions
CN104654679A (en
Inventor
贾翔
包本勇
余凯
张仕强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201510077072.0A priority Critical patent/CN104654679B/en
Publication of CN104654679A publication Critical patent/CN104654679A/en
Application granted granted Critical
Publication of CN104654679B publication Critical patent/CN104654679B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B13/00Compression machines, plant or systems with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04Refrigeration circuit bypassing means
    • F25B2400/0403Refrigeration circuit bypassing means for the condenser

Abstract

The present invention relates to a kind of condenser system, there is entrance and exit, condenser system includes at least one first condensation channel being connected in parallel between the entrance and exit of condenser system and at least one second condensation channel;First condensing unit is included on the first condensation channel, second condensing unit, the first control valve and the second control valve are included on the second condensation channel, first control valve is arranged on the position between the entrance of condenser system and the second condensing unit, and the second control valve is arranged on the position between the second condensing unit and the outlet of condenser system;Also include liquid back pipe road, the one end on liquid back pipe road and the outlet of condenser system, the other end on liquid back pipe road is connected with the position between the second condensing unit and the second control valve in the second condensation channel.The invention still further relates to a kind of air-cooled type air conditioning system and control method.The present invention can improve the operation at part load of system, increases refrigeration during components of system as directed load operation and reliability.

Description

A kind of condenser system, air-cooled type air conditioning system and control method
Technical field
The present invention relates to airconditioning control field, particularly a kind of condenser system, air-cooled type air conditioning system and control method.
Background technology
Existing large and medium-sized air-cooled direct-cooled air conditioning unit (as multiple on-line system), coolant transfer pipeline is long, and refrigerating capacity is relatively Greatly, so that system cooling medium charging amount is often more, most systems are often provided with reservoir, are circulated by reservoir de-regulation Coolant quantity, and the setting of reservoir often can increase the groundwater increment of coolant.
During actually used, transition season or the application places having, refrigerating operaton is often in operation at part load, Now condensing pressure is relatively low, and often major part accumulates in condenser or reservoir coolant.The low of condensing pressure can cause Before and after valve, pressure differential is too little, and feed flow is short of power, and so that the throttle mechanism regulating power such as electric expansion valve is declined, under refrigerating capacity Fall, and easily cause system to return liquid.The low discharge superheat that also results in of condensing pressure is low, and coolant carries lubricating oil ability and increases By force, affect the reliability operation of compressor.
Content of the invention
The present invention provides a kind of condenser system, air-cooled type air conditioning system and control method, with empty in air-cooled direct-cooled heat pump Adjusting system, in operation at part load, improves the reliability of compressor operating.
The present invention relates to a kind of condenser system, there is entrance and exit, described condenser system includes being connected in parallel on described condensation At least one first condensation channel between the entrance and exit of system and at least one second condensation channel;Described first condensation First condensing unit is included on passage, described second condensation channel includes the second condensing unit, the first control valve and the second control Valve processed, described first control valve is arranged on the position between the entrance of described condenser system and described second condensing unit, described Second control valve is arranged on the position between described second condensing unit and the outlet of described condenser system;
Also include liquid back pipe road, the one end on described liquid back pipe road and the outlet of described condenser system, described liquid back pipe The other end on road is connected with the position between the second condensing unit and described first control valve in described second condensation channel, so that When proper described first control valve and the second control valve are closed, a part for the liquid refrigerants of the outlet of described condenser system is through institute State liquid back pipe road to be recycled in described second condensing unit.
Further, described liquid back pipe road is arranged the 3rd control valve, described 3rd control valve is used for controlling described time liquid The break-make of pipeline.
Further, also include the bypass line of one end and outside air-breathing circuit communication, described bypass line another End concentrates side to connect with the gas of described second condensing unit, and described bypass line is also included for controlling described bypass line Break-make the 4th control valve so that described second condensing unit gas concentrate side gas coolant pass through described bypass pipe Road passes in the air-breathing loop of outside.
Further, also include being separately positioned on the entrance point of described second condensing unit in the second condensation channel and go out Second discharge at mouthful end and the second liquid-dividing head, described second condensation channel includes a plurality of second sub- pipeline of condensation, and this plurality of the Two condense sub- pipeline is located between described second discharge and described second liquid-dividing head so that working as described first control valve and second When control valve is closed, a part for the liquid refrigerants of the outlet of described condenser system is recycled to described second through described liquid back pipe road In condensing unit and described second discharge.
Further, also include the bypass line of one end and outside air-breathing circuit communication, described bypass line another End is connected with described second discharge, and described bypass line also includes the 4th control of the break-make for controlling described bypass line Valve processed, so that the gas coolant in described second condensing unit and the second discharge passes to outside by described bypass line In air-breathing loop.
Further, the position that described bypass line is connected with described second discharge is located at the upper of described second discharge Portion.
Further, on described bypass line, the gas of described second condensing unit is concentrated between side and the 4th control valve It is additionally provided with bypass capillary.
Further, on described bypass line, the gas of described second condensing unit is concentrated between side and bypass capillary It is additionally provided with filter.
Further, on the first condensing unit and described second condensation channel on described first condensation channel second is cold Solidifying unit is located in same condenser.
Further, on the first condensing unit and described second condensation channel on described first condensation channel second is cold Solidifying unit is located in independent condenser respectively.
The present invention relates to a kind of air-cooled type air conditioning system, it includes above-mentioned condenser system.
Further, compressor, vaporizer, gas-liquid separator and four-way change-over valve are also included, described compressor is through described Four-way change-over valve is connected with the entrance of described condenser system;The outlet of described condenser system is successively through described vaporizer and described four Logical reversal valve is connected with described gas-liquid separator;Described compressor is connected with described gas-liquid separator.
Further, also include bypass line, the gas of one end of described bypass line and the second condensing unit concentrates side Connection, the other end of described bypass line is connected with described gas-liquid separator;Also include for controlling on described bypass line State the 4th control valve of the break-make of bypass line, so that the gas of described second condensing unit concentrates the gas coolant of side to pass through 4th control valve bypasses to the gas-liquid separator of described air-cooled air conditioner.
Further, also include reservoir, described reservoir be located at the outlet of described condenser system and described vaporizer it Between pipeline on.
The present invention relates to a kind of control method based on above-mentioned condenser system, comprise the following steps:
In full load refrigerating operaton operating mode, open the first control valve and second control valve of described condenser system, make gas State coolant carries out condensing heat-exchange by the first condensing unit of described condenser system and the second condensing unit;
In sub-load refrigerating operaton operating mode, close described first control valve and the second control valve, so that gaseous coolant is led to The first condensing unit crossing described condenser system carries out condensing heat-exchange, and make the outlet of described condenser system liquid refrigerants one The liquid back pipe road through described condenser system for the part is recycled in described second condensing unit.
Further, described liquid back pipe road is provided for control the 3rd control valve of described liquid back pipe road break-make, described Control method also includes:
In full load refrigerating operaton operating mode, close described 3rd control valve;
In sub-load refrigerating operaton operating mode, open described 3rd control valve, if described second condensing unit reclaims Terminate, then close described 3rd control valve.
Further, described condenser system also includes the bypass line of one end and outside air-breathing circuit communication, described side The other end on siphunculus road concentrates side to connect with the gas of described second condensing unit, and described bypass line is also included for controlling 4th control valve of the break-make of described bypass line;Described control method also includes:
In full load refrigerating operaton operating mode, close described 4th control valve;
In sub-load refrigerating operaton operating mode, open described 4th control valve, so that described second condensing unit Gas concentrates the gas coolant of side to pass in the air-breathing loop of outside by described bypass line.
Further, the second discharge and the second liquid-dividing head are also included in the second condensation channel, described second condensation is logical Road includes a plurality of second sub- pipeline of condensation, and this plurality of second sub- pipeline of condensation is located at described second discharge and described second point of liquid Between head;
In sub-load refrigerating operaton operating mode, close described first control valve and the second control valve, make described condensed system A part for the liquid refrigerants of outlet of system is recycled to described second condensing unit on the liquid back pipe road through described condenser system Meanwhile, also it is recycled in described second discharge.
Further, described condenser system also includes the bypass line of one end and outside air-breathing circuit communication, described side The other end on siphunculus road is connected with described second discharge, and described bypass line is also included for controlling described bypass line 4th control valve of break-make;Described control method also includes:
In full load refrigerating operaton operating mode, close described 4th control valve;
In sub-load refrigerating operaton operating mode, open described 4th control valve so that described second condensing unit and Gas coolant in second discharge is passed in the air-breathing loop of outside by described bypass line.
Beneficial effects of the present invention are as follows:The present invention is provided with multiple condensation channels of parallel connection in condenser system, and makes Condensing unit in partial condensation passage when refrigeration system is in sub-load, can reclaim the part of the outlet of condenser system Liquid refrigerants, and then play the effect that coolant adjusts tank, save reservoir or reduce reservoir capacity, to reduce cooling medium charging Amount, thus improving the performance in operation at part load for the refrigeration system, increases refrigerating capacity and reliability.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of a specific embodiment of condenser system of the present invention.
Fig. 2 is the schematic diagram of another specific embodiment of condenser system of the present invention.
Fig. 3 is the schematic diagram of a specific embodiment of air-cooled type air conditioning system of the present invention.
Fig. 4 is the schematic diagram of another specific embodiment of air-cooled type air conditioning system of the present invention.
Specific embodiment
Below by drawings and Examples, technical solution of the present invention is described in further detail.
As shown in figure 1, the schematic diagram of the specific embodiment of condenser system for the present invention.This condenser system have into Mouthful I and outlet O, this condenser system include being connected in parallel between the entrance I of described condenser system and outlet O at least one is first cold Solidifying passage P1 and at least one second condensation channel P2;First condensing unit 3 included on described first condensation channel P1, described Second condensing unit 4, the first control valve 11 and the second control valve 12 are included on two condensation channel P2, described first control valve 11 sets Put the position between the entrance I and described second condensing unit 4 of described condenser system, described second control valve 12 is arranged on institute State the position between the second condensing unit 4 and the outlet O of described condenser system.
In addition, in order to ensure the reliability under operation at part load in external system, to reduce cooling medium charging amount, The operation at part load of improvement system, the present embodiment can further include liquid back pipe road R, one end of described liquid back pipe road R Connect with the outlet O of described condenser system, the second condensation in the other end of described liquid back pipe road R and described second condensation channel P2 Position connection between unit 4 and described first control valve 11, so that work as described first control valve 11 and the second control valve 12 During closing, a part for the liquid refrigerants of outlet O of described condenser system is recycled to described second condensation through described liquid back pipe road R In unit 4, during such operation at part load, the gas in the second condensing unit 4 is extruded by unnecessary liquid refrigerants, and filling is described Second condensing unit 4, now the second condensing unit 4 to use as reservoir;And under normal full load ruuning situation, storage Liquid coolant in the second condensing unit 4 participates in kind of refrigeration cycle again.
For the ease of controlling the break-make of described liquid back pipe road R, described liquid back pipe road R can arrange the 3rd control valve 13. So, in full load refrigerating operaton operating mode it is possible to close the 3rd control valve 13, it is to avoid the liquid that condenser system exports O is cold Matchmaker flows back, and when being switched to sub-load refrigerating operaton operating mode, then opens the 3rd control valve 13, keeps liquid back pipe road R unimpeded, If the second condensing unit 4 reclaims terminated, close the 3rd control valve 13, it is to avoid the second condensing unit 4 hypertonia.
In order to prevent the pressure in the second condensing unit 4 excessive, condenser system can also increase one end and outside The bypass line F of air-breathing loop S connection, the gas of the other end of described bypass line F and the second condensing unit 4 concentrates side even Logical, described bypass line F also includes the 4th control valve 14 of the break-make for controlling described bypass line F, so that described The gas of the second condensing unit 4 concentrates the gas coolant of side to pass in the air-breathing loop S of outside by described bypass line F.
In order to ensure heat exchange and storage efficiency, as depicted in figs. 1 and 2, also include setting respectively in the second condensation channel P2 Put in the entrance point of described second condensing unit 4 and the second discharge 16 of the port of export and the second liquid-dividing head 18, described second is cold Solidifying passage P2 includes a plurality of second sub- pipeline of condensation, and this plurality of second condenses sub- pipeline and be located at described second discharge 16 and described So that when described first control valve 11 and the second control valve 12 are closed between second liquid-dividing head 18, the going out of described condenser system A part for the liquid refrigerants of mouth O is recycled to described second condensing unit 4 and described second discharge 16 through described liquid back pipe road R In.
In order to prevent the pressure in the second condensing unit 4 excessive, can further include one end in the present embodiment with outward The bypass line F of the air-breathing loop S connection in portion, the other end of described bypass line F collects with the second of described second condensing unit 4 Trachea 16 connects, the wherein second discharge 16 in the present embodiment just the gas as the second condensing unit 4 concentrate side and bypass Pipeline F connects.4th control valve 14 of the break-make for controlling described bypass line F is also included on bypass line F, so that institute The gas coolant stated in the second condensing unit 4 and the second discharge 16 is bypassed to outside air-breathing loop S by this bypass line F In.So, when the pressure increase in the second condensing unit 4 to a certain extent when, bypass line F pressure release can be led to, by second condense Gas coolant in unit 4 leads in the air-breathing loop S of outer loop.
Smoothly discharge for the ease of the gas in the second condensing unit 4, described bypass line F and described second discharge 16 The position of connection is located at the top of described second discharge 16, so that using in the larger liquid of the second discharge 16 bottom density The gaseous coolant on top is extruded by coolant.
Alternatively, similar with the second condensation channel P2, can include being separately positioned on described in the first condensation channel P1 First discharge 15 of the entrance point of the first condensing unit 3 and the port of export and the first liquid-dividing head 17, described first condensation channel P1 Including a plurality of first sub- pipeline of condensation, this plurality of first sub- pipeline of condensation is located at described first discharge 15 and described first point of liquid Between 17.
Affect the control ability of electric expansion valve and be easily damaged valve part to prevent bypass pressure difference excessive, On described bypass line F, the gas of described second condensing unit 4 is concentrated and is additionally provided with bypass capillary between side and the 4th control valve 14 Pipe 10.
For preventing impurity in liquid or gas coolant from blocking described capillary tube, also for protection the 4th control valve 14, On described bypass line F, the gas of described second condensing unit 4 is concentrated and is additionally provided with filter 9 between side and bypass capillary 10.
In the present invention, condenser has different forms, as shown in figure 1, first on described first condensation channel P1 The second condensing unit 4 on condensing unit 3 and described second condensation channel P2 is located in independent condenser respectively;As Fig. 2 institute Show, the second condensing unit 4 on the first condensing unit 3 on described first condensation channel P1 and described second condensation channel P2 In same condenser.
The present invention also provides a kind of air-cooled type air conditioning system, and it includes the embodiment of any of the above-described kind of condenser system.
In two embodiments of the air-cooled type air conditioning system of the present invention being respectively shown in as Fig. 3 and Fig. 4, this air conditioning system is also Including compressor 1, vaporizer 7, gas-liquid separator 8 and four-way change-over valve 2, described compressor 1 is through described four-way change-over valve 2 and institute State the entrance I connection of condenser system;The outlet O of described condenser system successively through described vaporizer 7 and described four-way change-over valve 2 with Described gas-liquid separator 8 connects;Described compressor 1 is connected with described gas-liquid separator 8.
Further, can also include bypass line F in air-cooled type air conditioning system, one end of described bypass line F with The gas of described second condensing unit 4 concentrates side connection, and the other end of described bypass line F is connected with described gas-liquid separator 8; 4th control valve 14 of the break-make for controlling described bypass line F is also included on described bypass line F, so that the second condensation The gas of unit 4 concentrates the gas coolant of side to bypass to the gas-liquid separation of described air-cooled air conditioner by bypass line F this described In device 8.So, when carrying out refrigerant recovering with operation at part load, the high-pressure gaseous refrigerant in the second condensing unit 4 is just for air-conditioning It is passed in gas-liquid separator to enter inhalation cycle, be conducive to the liquid refrigerants in the second condensing unit 4 to reclaim.
For the ease of freezing and heating control, can also include heating electric expansion valve 5 and cooling electronic expansion valve 6, institute State the outlet O of condenser system successively through described heat electric expansion valve 5, described cooling electronic expansion valve 6 and described vaporizer 7 with Described four-way change-over valve 2 connects.
Reservoir can not be used in the aforementioned embodiment, but as shown in figure 4, the present invention can also be equipped with reservoir 20, also Including reservoir 20, described reservoir 20 is located on the outlet of the described condenser system pipeline between O and described vaporizer 7, has Body is located at and heats between electric expansion valve 5 and cooling electronic expansion valve 6.
Below, the structure based on above-mentioned condenser system, the operating process to above-mentioned condenser system is described:In full load During refrigerating operaton operating mode, open the first control valve 11 and second control valve 12 of described condenser system, make gaseous coolant pass through institute State the first condensing unit 3 of condenser system and the second condensing unit 4 carries out condensing heat-exchange;
In sub-load refrigerating operaton operating mode, close described first control valve 11 and the second control valve 12, make gaseous state cold Matchmaker carries out condensing heat-exchange by the first condensing unit 3 of described condenser system, and make the outlet O of described condenser system liquid cold The liquid back pipe road R through described condenser system for the part of matchmaker is recycled in described second condensing unit 4.
In another embodiment, when being provided on described liquid back pipe road R controlling the 3rd of described liquid back pipe road R break-make During control valve 13, correspondingly:In full load refrigerating operaton operating mode, close described 3rd control valve 13;In sub-load refrigeration During operating condition, if described second condensing unit 4 reclaims terminated, close described 3rd control valve 13.
In yet another embodiment, described condenser system also includes the bypass pipe that one end is connected with outside air-breathing loop S Road F, the other end of described bypass line F concentrates side to connect with the gas of described second condensing unit 4, on described bypass line F Also include the 4th control valve 14 of the break-make for controlling described bypass line F;Therefore, in full load refrigerating operaton operating mode, Close described 4th control valve 14;In sub-load refrigerating operaton operating mode, open described 4th control valve 14, so that described The gas of the second condensing unit 4 concentrates the gas coolant of side to pass in the air-breathing loop S of outside by described bypass line F.
In further embodiment, in the second condensation channel P2, in described condenser system, also include the second discharge 16 and Two liquid-dividing heads 18, described second condensation channel P2 includes a plurality of second sub- pipeline of condensation, and this plurality of second sub- pipeline of condensation is located at When between described second discharge 16 and described second liquid-dividing head 18, correspondingly:In sub-load refrigerating operaton operating mode, close Described first control valve 11 and the second control valve 12, the part for the liquid refrigerants of outlet O making described condenser system is through described While the liquid back pipe road R of condenser system is recycled to described second condensing unit 4, also by the liquid of the outlet O of described condenser system A part for state coolant is recycled in described second discharge 16.
Accordingly, described condenser system can further include the bypass pipe that one end is connected with outside air-breathing loop S Road F, the other end of described bypass line F is connected with described second discharge 16, and described bypass line F is also included for controlling 4th control valve 14 of the break-make of described bypass line F, correspondingly:In full load refrigerating operaton operating mode, close the described 4th Control valve 14;In sub-load refrigerating operaton operating mode, open described 4th control valve 14, so that described second condensing unit 4 and second gas coolants in discharge 16 are bypassed to outside air-breathing loop S by the 4th control valve 14.
Below with reference to Fig. 1~Fig. 4, the mode of operation of the air-cooled type air conditioning system of the present invention is briefly described:
When refrigeration system heavy-duty service, the first control valve 11 and the second control valve 12 stay open, the 3rd control valve 13 and the 4th control valve 14 close, coolant the first condensing unit 3 in parallel and the second condensing unit 4 all carry out condensation and change Heat, system coolant all participates in circulating, that is,:High pressure gaseous coolant from compressor 1 out, enters through four-way change-over valve 2 First condensing unit 3 in parallel and the second condensing unit 4 carry out condensing heat-exchange, and condensed High Temperature High Pressure liquid coolant is through room The cooling electronic expansion valve EXV reducing pressure by regulating flow of interior machine, becomes low temperature, the biphase coolant of low pressure, is steamed subsequently in vaporizer 7 Send out heat exchange, low temperature, low-pressure gaseous coolant out enter gas-liquid separator 8 through four-way change-over valve 2 from vaporizer 7, and air-liquid is divided Return to compressor 1 from rear gaseous coolant and re-start compression.
And when refrigerant system feature load operation, the first control valve 11 and the second control valve 12 are closed, the 3rd control valve 13 and the 4th control valve 14 open, now after the first condensing unit 3 condensing heat-exchange above, coolant out is partly into System participates in kind of refrigeration cycle, and another part coolant is collected in lower sections of second condensing unit 4 through the 3rd control valve 13. Preferably collect to the second condensing unit 4 for guarantee liquid refrigerants, by the second condensing unit 4 discharge 16 top setting gas Logical loop F, allows gas coolant in the second condensing unit 4 and discharge 16 to bypass to the S of air-breathing loop by the 4th control valve 14 Go, in such system, the coolant of a part will be recycled in the second following condensing unit 4, reclaim the 3rd control valve after terminating 13 closings, the 4th control valve 14 stays open, to avoid hypertonia in the second condensing unit 4.Now be equivalent to the first condensation Unit 3 carries out heat exchange, below the second condensing unit 4 as coolant adjustment tank use;
When refrigeration system workload demand increase to a certain extent, such as during oepration at full load, the first control valve 11 and second Control valve 12 is opened, and the 3rd control valve 13 and the 4th control valve 14 are closed, and the first condensing unit 3 and the second condensing unit 4 are again Parallel connection carries out condensing heat-exchange, such loop control.
Finally it should be noted that:Above example is only not intended to limit in order to technical scheme to be described;To the greatest extent Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood:Still The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics;Without deviating from this The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.

Claims (19)

1. a kind of condenser system, there is entrance (I) and outlet (O) it is characterised in that described condenser system include being connected in parallel on described At least one first condensation channel (P1) between the entrance (I) of condenser system and outlet (O) and at least one the second condensation are logical Road (P2);Described first condensation channel (P1) is upper to include the first condensing unit (3), and described second condensation channel (P2) is gone up and included the Two condensing units (4), the first control valve (11) and the second control valve (12), described first control valve (11) is arranged on described condensation Position between the entrance (I) of system and described second condensing unit (4), described second control valve (12) is arranged on described second Position between the outlet (O) of condensing unit (4) and described condenser system;
Also include liquid back pipe road (R), one end of described liquid back pipe road (R) is connected with the outlet (O) of described condenser system, described time The other end of liquid pipeline (R) and the second condensing unit (4) and described first control valve (11) in described second condensation channel (P2) Between position connection so that when described first control valve (11) and the second control valve (12) closing when, described condenser system The part of the liquid refrigerants of outlet (O) be recycled in described second condensing unit (4) through described liquid back pipe road (R).
2. condenser system as claimed in claim 1 arranges the 3rd control valve it is characterised in that described liquid back pipe road (R) is upper (13), described 3rd control valve (13) is used for controlling the break-make of described liquid back pipe road (R).
3. condenser system as claimed in claim 1 or 2 is it is characterised in that also include one end with outside air-breathing loop (S) even Logical bypass line (F), the other end of described bypass line (F) concentrates side to connect with the gas of described second condensing unit (4), 4th control valve (14) of the break-make for controlling described bypass line (F) is also included on described bypass line (F), so that institute The gas stating the second condensing unit (4) concentrates the gas coolant of side to pass to the air-breathing loop of outside by described bypass line (F) (S) in.
4. condenser system as claimed in claim 1 or 2 is it is characterised in that also include respectively in the second condensation channel (P2) It is arranged on the entrance point of described second condensing unit (4) and second discharge (16) of the port of export and the second liquid-dividing head (18), institute State the second condensation channel (P2) and include a plurality of second sub- pipeline of condensation, this plurality of second sub- pipeline of condensation is located at described second gas collection So that working as described first control valve (11) and the second control valve (12) closing between pipe (16) and described second liquid-dividing head (18) When, a part for the liquid refrigerants of outlet (O) of described condenser system is recycled to described second condensation through described liquid back pipe road (R) In unit (4) and described second discharge (16).
5. condenser system as claimed in claim 4 is connected it is characterised in that also including one end with outside air-breathing loop (S) Bypass line (F), the other end of described bypass line (F) connected with described second discharge (16), described bypass line (F) On also include the 4th control valve (14) of break-make for controlling described bypass line (F), so that described second condensing unit (4) gas coolant and in the second discharge (16) is passed in the air-breathing loop (S) of outside by described bypass line (F).
6. condenser system as claimed in claim 5 is it is characterised in that described bypass line (F) and described second discharge (16) position connecting is located at the top of described second discharge (16).
7. condenser system as claimed in claim 3 it is characterised in that condense single in described bypass line (F) upper described second The gas of first (4) is concentrated and is additionally provided with bypass capillary (10) between side and the 4th control valve (14).
8. condenser system as claimed in claim 7 it is characterised in that condense single in described bypass line (F) upper described second The gas of first (4) is concentrated and is additionally provided with filter (9) between side and bypass capillary (10).
9. condenser system as claimed in claim 1 is it is characterised in that the first condensation on described first condensation channel (P1) is single The second condensing unit (4) on first (3) and described second condensation channel (P2) is located in same condenser.
10. condenser system as claimed in claim 1 is it is characterised in that on described first condensation channel (P1) first condenses The second condensing unit (4) on unit (3) and described second condensation channel (P2) is located in independent condenser respectively.
A kind of 11. air-cooled type air conditioning systems are it is characterised in that include any one described condenser system as claim 1~10.
12. air-cooled type air conditioning systems as claimed in claim 11 it is characterised in that also include compressor (1), vaporizer (7), Gas-liquid separator (8) and four-way change-over valve (2), described compressor (1) is through described four-way change-over valve (2) and described condenser system Entrance (I) connects;The outlet (O) of described condenser system successively through described vaporizer (7) and described four-way change-over valve (2) with described Gas-liquid separator (8) connects;Described compressor (1) is connected with described gas-liquid separator (8).
13. air-cooled type air conditioning systems as claimed in claim 12 are it is characterised in that also include bypass line (F), described bypass The gas of one end of pipeline (F) and the second condensing unit (4) concentrates side to connect, the other end of described bypass line (F) with described Gas-liquid separator (8) connects;The 4th of the break-make for controlling described bypass line (F) the is also included on described bypass line (F) Control valve (14), so that the gas of described second condensing unit (4) concentrates the gas coolant of side to pass through the 4th control valve (14) bypass to the gas-liquid separator (8) of described air-cooled type air conditioning system.
14. air-cooled type air conditioning systems as claimed in claim 12 are it is characterised in that also include reservoir (20), described liquid storage Device (20) is located on the pipeline between the outlet (O) of described condenser system and described vaporizer.
A kind of 15. control methods based on the arbitrary described condenser system of claim 1~10 are it is characterised in that include following walking Suddenly:
In full load refrigerating operaton operating mode, open the first control valve (11) and second control valve (12) of described condenser system, Gaseous coolant is made to carry out condensing heat-exchange by first condensing unit (3) of described condenser system and the second condensing unit (4);
In sub-load refrigerating operaton operating mode, close described first control valve (11) and the second control valve (12), make gaseous state cold Matchmaker carries out condensing heat-exchange by first condensing unit (3) of described condenser system, and makes the liquid of the outlet (O) of described condenser system The liquid back pipe road (R) through described condenser system for the part for state coolant is recycled in described second condensing unit (4).
16. control methods according to claim 15 are it is characterised in that be provided on described liquid back pipe road (R) controlling 3rd control valve (13) of described liquid back pipe road (R) break-make, described control method also includes:
In full load refrigerating operaton operating mode, close described 3rd control valve (13);
In sub-load refrigerating operaton operating mode, open described 3rd control valve (13), if described second condensing unit (4) returns Receipts terminate, then close described 3rd control valve (13).
17. control methods as described in claim 15 or 16 are it is characterised in that described condenser system also includes one end and outside The bypass line (F) that connects of air-breathing loop (S), the other end of described bypass line (F) and described second condensing unit (4) Gas concentrates side connection, and described bypass line (F) also includes the 4th control of the break-make for controlling described bypass line (F) Valve (14);Described control method also includes:
In full load refrigerating operaton operating mode, close described 4th control valve (14);
In sub-load refrigerating operaton operating mode, open described 4th control valve (14), so that described second condensing unit (4) Gas concentrate the gas coolant of side to pass through described bypass line (F) to pass in outside air-breathing loop (S).
18. control methods according to claim 15 or 16 are it is characterised in that also include in the second condensation channel (P2) Second discharge (16) and the second liquid-dividing head (18), described second condensation channel (P2) includes a plurality of second sub- pipeline of condensation, should A plurality of second condenses sub- pipeline is located between described second discharge (16) and described second liquid-dividing head (18);
In sub-load refrigerating operaton operating mode, close described first control valve (11) and the second control valve (12), make described cold A part for the liquid refrigerants of outlet (O) of solidifying system is recycled to described second on the liquid back pipe road (R) through described condenser system While condensing unit (4), also it is recycled in described second discharge (16).
19. control methods as claimed in claim 18 are it is characterised in that described condenser system also includes one end and outside suction The bypass line (F) that air circuit (S) connects, the other end of described bypass line (F) is connected with described second discharge (16), institute State the 4th control valve (14) that the break-make for controlling described bypass line (F) is also included on bypass line (F);Described controlling party Method also includes:
In full load refrigerating operaton operating mode, close described 4th control valve (14);
In sub-load refrigerating operaton operating mode, open described 4th control valve (14), so that described second condensing unit (4) And second the gas coolant in discharge (16) passed in the air-breathing loop (S) of outside by described bypass line (F).
CN201510077072.0A 2015-02-12 2015-02-12 A kind of condenser system, air-cooled type air conditioning system and control method Active CN104654679B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510077072.0A CN104654679B (en) 2015-02-12 2015-02-12 A kind of condenser system, air-cooled type air conditioning system and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510077072.0A CN104654679B (en) 2015-02-12 2015-02-12 A kind of condenser system, air-cooled type air conditioning system and control method

Publications (2)

Publication Number Publication Date
CN104654679A CN104654679A (en) 2015-05-27
CN104654679B true CN104654679B (en) 2017-03-08

Family

ID=53246100

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510077072.0A Active CN104654679B (en) 2015-02-12 2015-02-12 A kind of condenser system, air-cooled type air conditioning system and control method

Country Status (1)

Country Link
CN (1) CN104654679B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225113B (en) * 2016-08-17 2019-03-01 青岛海尔空调器有限总公司 Air conditioner
CN107560117A (en) * 2017-08-22 2018-01-09 珠海格力电器股份有限公司 Air-conditioning system and its control method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07103618A (en) * 1993-10-06 1995-04-18 Matsushita Refrig Co Ltd Refrigerant recovery machine corresponding to refrigerator and method for recovering refrigerant
JP3329114B2 (en) * 1995-01-13 2002-09-30 松下電器産業株式会社 Refrigerant recovery device
US7980087B2 (en) * 2007-06-08 2011-07-19 Trane International Inc. Refrigerant reheat circuit and charge control with target subcooling
CN203454507U (en) * 2013-07-30 2014-02-26 广东美的暖通设备有限公司 Intelligent defrosting air-conditioning system
CN103776119A (en) * 2014-02-21 2014-05-07 广东志高暖通设备股份有限公司 Multi-split air conditioner heat pump system, refrigeration control method thereof and heating control method thereof
CN103851841A (en) * 2014-03-27 2014-06-11 广东志高暖通设备股份有限公司 Control system and control method of parallel-connection four-way valve for multi-line machine
CN204460863U (en) * 2015-02-12 2015-07-08 珠海格力电器股份有限公司 A kind of condenser system and air-cooled type air conditioning system

Also Published As

Publication number Publication date
CN104654679A (en) 2015-05-27

Similar Documents

Publication Publication Date Title
CN103175344B (en) Cold-region used multi-connected heat pump system and control method thereof
CN102538273A (en) Vapor-injected air-conditioning system, vapor-injected air-conditioning control method and air-conditioner
CN106524610A (en) Air conditioning system and air conditioner
CN101957061A (en) Quasi-two-stage compression ultralow temperature air source heat pump water heater with economizer
CN108036554A (en) The idle call circulatory system, air-conditioning and air conditioning control method
CN103363717A (en) Refrigerating system and operation method thereof
CN207146975U (en) Heat-reclamation multi-compressors air-conditioning system
CN204460863U (en) A kind of condenser system and air-cooled type air conditioning system
CN106595105A (en) Air conditioner
CN104654679B (en) A kind of condenser system, air-cooled type air conditioning system and control method
CN106322810A (en) Frostless air source heat pump system based on humidity adjustment and evaporative cooling
CN206556168U (en) Energy-efficient air energy two-shipper heat pump type air conditioning system
WO2020164212A1 (en) Refrigerant circulation system and control method thereof, and air conditioner
CN104214985B (en) A kind of multi-connected air conditioning system and cryogenic refrigeration method
CN205619617U (en) Multi -split air conditioning system
CN106225280A (en) A kind of refrigeration or heat pump and a kind of Condensing units
CN109282401A (en) Separate heat pipe air-conditioning and its control method
DK2318783T3 (en) Reversible system for recovery of heat energy by sampling and transfer of heat energy from one or more media in one or more other such media
CN106765742A (en) Air-conditioner set with full-liquid type case tube heat exchanger
CN106482407A (en) A kind of air-conditioning system for preventing compressor of air conditioner liquid hammer and its control method
CN207702631U (en) Air conditioner cooling cycle system and air conditioner
CN207849836U (en) The idle call circulatory system and air-conditioning
CN105352234B (en) A kind of adaptive phase transformation condensation air conditioner system and its implementation
CN104197582B (en) Multi-connection air conditioning system
CN109654683A (en) Air conditioner in machine room heat recovery system and its control method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant