CN103528295B - The energy-saving residential central air-of compound energy heat-pump-type and control method thereof - Google Patents
The energy-saving residential central air-of compound energy heat-pump-type and control method thereof Download PDFInfo
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Abstract
The invention discloses the energy-saving residential central air-of a kind of compound energy heat-pump-type and control method thereof, residential central air-comprises: the solar heat pump unit be arranged in parallel, air source heat pump unit, earth source heat pump unit and electrical heating heat pump unit; Described solar heat pump unit, air source heat pump unit, earth source heat pump unit and electrical heating heat pump units shared compressor and a load side condenser/evaporator and be all controlled by automatic control unit.The energy-saving residential central air-of compound energy heat-pump-type of the present invention, employing solar source, air Cooling and Heat Source, underground pipe ground source Cooling and Heat Source and electric power thermal source complementary and accumulation of energy, achieve mutual compensation and the comprehensive utilization of diversification resource, store heat during refrigeration, store cold when heating, save the use of the consumption-type energy such as electric energy substantially, achieve the comprehensive utilization of the energy, ensure the normal economical operation of central air-conditioning system.
Description
Technical field
The present invention relates to residential central air-technical field, particularly relating to a kind of application is the energy-saving residential central air-of compound energy heat-pump-type independently built of villa or process of villa and control method thereof.
Background technology
Along with town and country modernization construction and New rural reformation, villa or process of villa are independently built and are increased, and the requirement of people to comfort level improves constantly, and air-conditioning becomes the key facility solving indoor refrigeration and heating.Heat-pump-type central air-conditioning is the aircondition uniquely meeting energy-saving and environmental protection, clean and renewable, recycling energy source use.According to U.S. ARI standard and China-styled Certain Industry Field standard JB/T4329-97, building is at different time, and system cloud gray model load is different, only has little time system to reach oepration at full load.The time of usual 10%, load is more than 90%; The time of 30%, load is more than 60%; The time of 60%, load is 40%, average coefficient of utilization is about 0.51, but the configuration of heat pump be according to meet extreme the hottest time refrigeration needs or extreme the coldest time the load of needs that heats and designing, idleness of equipment situation must cause the waste of investment and equipment to run the waste of drive energy.What simultaneously present villa residential central air-adopted is the single energy; this single energy form is subject to the impact of external condition; picture solar energy by continuous rainy weather or night non-illuminated conditions impact; air-source is by the impact of summer high temperature decay winter low temperature high humidity environment, and the normal operation that have impact on central air conditioner system under these exceedingly odious weather even causes shutting down.
Summary of the invention
First technical problem to be solved by this invention is: provide a kind of compound energy heat-pump-type energy-saving residential central air-; employing solar source, air Cooling and Heat Source, underground pipe ground source Cooling and Heat Source and electric power thermal source complementary and accumulation of energy; realize mutual compensation and the comprehensive utilization of diversification resource; freeze time store heat, heat time store cold; save the use of the consumption-type energy substantially; to realize the comprehensive utilization of the energy, guarantee the normal operation of central air-conditioning system.
Second technical problem to be solved by this invention is: the control method providing the energy-saving residential central air-of a kind of compound energy heat-pump-type.
For solving above-mentioned first technical problem, technical scheme of the present invention is: the energy-saving residential central air-of compound energy heat-pump-type, comprising: the solar heat pump unit be arranged in parallel, air source heat pump unit, earth source heat pump unit and electrical heating heat pump unit; Described solar heat pump unit, air source heat pump unit, earth source heat pump unit and electrical heating heat pump units shared compressor and a load side condenser/evaporator and be all controlled by automatic control unit.
Preferably, described solar heat pump unit comprises solar still, and described solar still, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described solar heat pump unit through refrigerant pipeline serial connection.
Further preferably, described solar heat pump unit also comprises the heated condenser in parallel with described load side condenser/evaporator, for meeting user at any time to the needs of hot water; And the underground heat storage pond in parallel with described load side condenser/evaporator, for storing solar energy optical-thermal more than needed.
Preferably, described air source heat pump unit comprises air-source evaporative condenser, and described air-source evaporative condenser, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described air source heat pump unit through refrigerant pipeline serial connection.
Preferably, described earth source heat pump unit comprises the underground pipe being vertically installed in underground, and described underground pipe is connected in series with circulating pump and forms ground water circulation pipeline; And the buried pipe end evaporative condenser to be connected in series with described ground water circulation pipeline, described buried pipe end evaporative condenser, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described earth source heat pump unit through refrigerant pipeline serial connection.
Further preferably, described underground pipe is single U-shaped underground pipe or double-U-shaped underground pipe, and the diameter of described underground pipe is 25 ~ 40 ㎜, is embedded in well that diameter is 110 ~ 150 ㎜, the depth of burying 60 ~ 80 meters.
Preferably, described electrical heating heat pump unit comprises electric evaporator, and described electric evaporator, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described electrical heating heat pump unit through refrigerant pipeline serial connection.
Preferably, described automatic control unit comprises PLC single-chip microcomputer.
For solving above-mentioned second technical problem, technical scheme of the present invention is: the control method of the energy-saving residential central air-of compound energy heat-pump-type, comprises the following steps:
(1) under cooling condition, controlled by automatic control unit, preferentially operably source heat pump unit; When local source heat pump unit overload operation causes temperature to reach setting protection, switchover operation air source heat pump unit;
(2) under heating condition, controlled by automatic control unit, preferential operation solar heat pump unit; Night or successive cloudy days solar illuminating condition is bad when can not meet instructions for use, switchover operation air source heat pump unit; When temperature lower than subzero 17 DEG C or air humidity critical hoarfrost point time, switchover operation earth source heat pump unit; If cannot operably source heat pump unit, then switchover operation electrical heating heat pump unit.
Preferably, described solar heat pump unit comprises solar still, and described solar still, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described solar heat pump unit through refrigerant pipeline serial connection; Described solar heat pump unit also comprises the heated condenser in parallel with described load side condenser/evaporator, for meeting user at any time to the needs of hot water; And the underground heat storage pond in parallel with described load side condenser/evaporator, for storing solar energy optical-thermal more than needed; Under adopting solar heat pump unit style thermal condition, controlled by described automatic control unit, selectively make described heated condenser connect or described heated condenser and described underground heat storage pond are all connected.
Owing to have employed technique scheme, the energy-saving residential central air-of compound energy heat-pump-type of the present invention, comprising: the solar heat pump unit be arranged in parallel, air source heat pump unit, earth source heat pump unit and electrical heating heat pump unit; Wherein, solar heat pump unit, air source heat pump unit, earth source heat pump unit and electrical heating heat pump units shared compressor and a load side condenser/evaporator and be all controlled by automatic control unit.
When needing refrigeration summer, controlled by automatic control unit, preferential operably source heat pump unit, both the needs of user's refrigeration had been met, heat delivery to underground in also constantly villa or process of villa end independently being built stores with source concurrent heating over the ground, in advance for heat deposit does in winter heating, alleviate summer in winter unbalanced phenomenon; Local source heat pump unit overload operation causes temperature to reach setting protection when can not continue to run, then automatically switch to air source heat pump unit, meets user to freeze needs by running air source heat pump unit.
When needing winter to heat, controlled by automatic control unit, preferential operation solar heat pump unit, to make full use of inexhaustible clean solar energy resources; When night or successive cloudy days solar illuminating condition is bad can not meet instructions for use time, then automatically switch to air source heat pump unit, meet user heat needs by running air source heat pump unit; When Cold Winter temperature lower than subzero 17 DEG C or air humidity critical hoarfrost point time, be difficult to run air source heat pump unit, system automatically switches to earth source heat pump unit, both user winter heating needs had been met by operably source heat pump unit, cold in also constantly user's villa or process of villa end independently being built is delivered to underground and stores so that source benefit is cold over the ground, storing cold when heating, in advance for cooling in summer does cold deposit, alleviating summer in winter unbalanced phenomenon; Can not operably source heat pump unit without underground pipe engineering if outdoor, then switch to electrical heating heat pump unit, meet user by operation electrical heating heat pump unit and heat needs.
The energy-saving residential central air-of compound energy heat-pump-type of the present invention, employing solar source, air Cooling and Heat Source, underground pipe ground source Cooling and Heat Source and electric power thermal source complementary and accumulation of energy, achieve mutual compensation and the comprehensive utilization of diversification resource, freeze time store heat, heat time store cold, save the use of the consumption-type energy such as electric energy substantially, achieve the comprehensive utilization of the energy, ensure the normal economical operation of central air-conditioning system.
Wherein, solar still is in thermal-arrest state throughout the year, the heated condenser in parallel with load side condenser/evaporator can meet user throughout the year at any time to the needs of hot water, the underground heat storage pond in parallel with load side condenser/evaporator then can be used for storing solar energy optical-thermal more than needed, solar energy resources is obtained and utilizes to the limit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the energy-saving residential central air-schematic layout pattern of compound energy heat-pump-type of the embodiment of the present invention;
Fig. 2 is the earth source heat pump unit cooling condition schematic diagram in Fig. 1;
Fig. 3 is the air source heat pump unit cooling condition schematic diagram in Fig. 1;
Fig. 4 is the solar heat pump unit style thermal condition schematic diagram in Fig. 1;
Fig. 5 is the air source heat pump unit style thermal condition schematic diagram in Fig. 1;
Fig. 6 is the earth source heat pump unit style thermal condition schematic diagram in Fig. 1;
Fig. 7 is the electrical heating heat pump unit style thermal condition schematic diagram in Fig. 1;
Fig. 8 is the theory diagram of Fig. 1;
In figure: 1-solar still; 2-air-source evaporative condenser; The buried pipe end evaporative condenser of 3-; 4-electric evaporator; 5-compressor; 6-underground pipe; 7-gas-liquid separator; 8-load side condenser/evaporator; 9-expansion valve; 10-fluid reservoir.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is the schematic layout pattern of the energy-saving central air-conditioning system of compound energy heat-pump-type provided by the invention, and Fig. 8 is the theory diagram of Fig. 1, and for convenience of explanation, this figure only provides the part relevant with the present invention.
As shown in Figure 1, the energy-saving residential central air-of compound energy heat-pump-type of the embodiment of the present invention comprises: the solar heat pump unit be arranged in parallel, air source heat pump unit, earth source heat pump unit and electrical heating heat pump unit; And solar heat pump unit, air source heat pump unit, earth source heat pump unit and electrical heating heat pump units shared compressor 5 and a load side condenser/evaporator 8 and be all controlled by automatic control unit.
Wherein, solar heat pump unit comprises solar still 1, in the present embodiment, solar still 1 adopts dull and stereotyped direct-expansion type solar energy heat collector, and the elements such as the gas-liquid separator 7, expansion valve 9 and the fluid reservoir 10 that are arranged by solar still 1, compressor 5, load side condenser/evaporator 8 and art of heat pumps thereof routine are connected in series the refrigerant closed loop forming described solar heat pump unit through refrigerant pipeline.
This solar heat pump unit also comprises the heated condenser's (not specifically illustrating in figure) be arranged in parallel with load side condenser/evaporator 8 further, for meeting user throughout the year at any time to the needs of domestic hot-water.User with good conditionsi, can also build underground heat storage pond (not specifically illustrating in figure), and this underground heat storage pond and load side condenser/evaporator 8 are arranged in parallel, for storing solar energy optical-thermal more than needed.
Wherein, air source heat pump unit comprises air-source evaporative condenser 2, air-source evaporative condenser 2 is furnished with multiple stage blower fan, is connected in series the refrigerant closed loop forming described air source heat pump unit by elements such as air-source evaporative condenser 2, compressor 5, load side condenser/evaporator 8 and gas-liquid separator 7, expansion valve 9 and fluid reservoirs 10 through refrigerant pipeline.
Wherein, earth source heat pump unit comprises the underground pipe 6 being vertically installed in underground, and underground pipe 6 is connected in series with circulating pump (not specifically illustrating in figure) circulation line forming underground water; And the buried pipe end evaporative condenser 3 to be connected in series with this ground water circulation pipeline, be connected in series the refrigerant closed loop forming described earth source heat pump unit through refrigerant pipeline by elements such as buried pipe end evaporative condenser 3, compressor 5, load side condenser/evaporator 8 and gas-liquid separator 7, expansion valve 9 and fluid reservoirs 10.
Underground pipe 6 can adopt single U-shaped underground pipe or double-U-shaped underground pipe, and the diameter of underground pipe 6 is 25 ~ 40 ㎜, is embedded in well that diameter is 110 ~ 150 ㎜.The depth of burying 60 ~ 80 meters is the most economical and practical, and the rock-soil layer of this interlayer contains huge solar thermal energy, and the temperature of this interlayer of the most area of the earth is 13 ~ 16 DEG C.Formed the circulation line of underground water by pump operating cycle water or water-antifreezing agent mixed liquor, water-catalyst carrier mixed liquor in the pipeline of underground pipe 6.
Wherein, electrical heating heat pump unit comprises electric evaporator 4, is connected in series the refrigerant closed loop forming described electrical heating heat pump unit by elements such as electric evaporator 4, compressor 5, load side condenser/evaporator 8 and gas-liquid separator 7, expansion valve 9 and fluid reservoirs 10 through refrigerant pipeline.
Wherein, automatic control unit mainly comprises PLC single-chip microcomputer; whole central air conditioner system is also supporting digital temperature pressure monitoring controller, medium multi-source flow channel switching valve, compressor return air delivery temperature protecting control, blower fan automatic defrosting controller etc., and the conversion between the various energy realizes automation, intellectuality completely.These functions of automatic control unit are that those skilled in the art easily can realize according to available circuit control principle, no longer describe in detail at this.
The control method of the energy-saving residential central air-of compound energy heat-pump-type of the present invention is as follows:
(1) under cooling condition, controlled by automatic control unit, preferential operably source heat pump unit, both the needs of user to refrigeration had been met, heat delivery to underground in also constantly villa or process of villa end independently being built stores with source concurrent heating over the ground, in advance for heat deposit does in winter heating, alleviate summer in winter unbalanced phenomenon; When local source heat pump unit overload operation causes temperature to reach setting protection, then automatically switch to air source heat pump unit, meet user to freeze needs by running air source heat pump unit.
(2) under heating condition, controlled by automatic control unit, preferential operation solar heat pump unit, to make full use of inexhaustible clean solar energy resources; When night or successive cloudy days solar illuminating condition is bad can not meet instructions for use time, then automatically switch to air source heat pump unit, meet user heat needs by running air source heat pump unit; When temperature lower than subzero 17 DEG C or air humidity critical hoarfrost point time, be difficult to run air source heat pump unit, then automatically switch to earth source heat pump unit, both user winter heating needs had been met by operably source heat pump unit, cold in also constantly user's villa or process of villa end independently being built is delivered to underground and stores so that source benefit is cold over the ground, storing cold when heating, in advance for cooling in summer does cold deposit, alleviating summer in winter unbalanced phenomenon; If outdoor without underground pipe engineering can not operably source heat pump unit time, then automatically switch to electrical heating heat pump unit, meet user by operation electrical heating heat pump unit and heat needs.
Below the know-why of this invention is described in detail from freezing and heating two kinds of operating modes:
One, cooling condition: air source heat pump unit and earth source heat pump unit are for being arranged in parallel, preferential operably source heat pump unit during cooling in summer, from soil, draw cold by underground pipe 6 and produce cold water needed for load side and load side condenser/evaporator 8, summer is based on this operating mode, mainly in order to past underground concurrent heating, for winter heating does heat deposit in advance, to alleviate summer in winter unbalanced phenomenon.
(1), as shown in Figure 2, during unit operation, the refrigerant gas of low-temp low-pressure is after compressor 5 compresses, become the refrigerant superheat gas of HTHP, control valve DF1-1, control valve DF5-2 opens, overheated gas enters buried pipe end evaporative condenser 3, heat exchange is carried out with cooling water, now cold-producing medium becomes cryogenic high pressure subcooled liquid by the gas of HTHP, control valve DF5-1, control valve DF7-1 opens, load side condenser/evaporator 8 is entered after expansion valve 9 step-down, refrigerant liquid carries out heat exchange in load side condenser/evaporator 8, heat absorption evaporation, control valve DF1-2 opens, the superheated vapor of low-temp low-pressure enters compressor 5 after gas-liquid separator 7, cold-producing medium is pressed flowing shown in arrow in Fig. 2 and is formed refrigerant closed loop, so go round and begin again, thus the object reached indoor refrigeration.
The cooling water being driven circular flow in underground pipe 6 by circulating pump is water or water-antifreezing agent mixed liquor, water-catalyst carrier mixed liquor, with the cooling water after cold-producing medium heat exchange under circulating pump drives, constantly the heat of indoor is sent into underground and get cold in return, to continue indoor refrigeration.
(2), as shown in Figure 3, when the heat pump unit overload operation of local source causes temperature to reach setting protection, then automatically switch to air source heat pump unit, meet user to freeze needs by running air source heat pump unit.During unit operation, control valve DF1-1, control valve DF4-2 opens, the refrigerant superheat gas of HTHP enters air-source evaporative condenser 2, by means of blower fan to release heat in air, cold-producing medium becomes cryogenic high pressure subcooled liquid, control valve DF4-1, control valve DF7-1, control valve DF1-2 opens, load side condenser/evaporator 8 is entered after expansion valve 9 step-down, compressor 5 is entered after evaporation endothermic, cold is discharged in end building by load side condenser/evaporator 8, cold-producing medium is pressed flowing shown in arrow in Fig. 3 and is formed refrigerant closed loop, so go round and begin again, thus reach the object of refrigeration, meet user to freeze needs.
Two, heating condition: under heating condition, solar still 1, air-source evaporative condenser 2, buried pipe end evaporative condenser 3, electric evaporator 4 are parallel relationship, are regulated by automatic control unit.Under heating condition, preferential operation solar heat pump unit.
(1), as shown in Figure 4, during unit operation, control valve DF3-2, control valve DF2-2 open, and compressor 5 constantly extracts low-temperature low-pressure refrigerant steam out from solar still 1, after compressor 5 compresses, be transformed into high pressure high temperature vapor.Controller DF2-1 opens, and high-temperature high-pressure refrigerant steam enters load side condenser/evaporator 8, releases amount of heat and is discharged in end building by the water absorption in load side condenser/evaporator 8, thus reach the object heated.Control valve DF7-1, control valve DF3-1 open, by the high pressure liquid refrigerant that obtains after load side condenser/evaporator 8 condensation through expansion valve 9 throttling, step-down, change low pressure refrigerant liquid into, low pressure refrigerant evaporates in solar still 1, from solar water, absorb amount of heat, reduce the temperature of solar water.Cold-producing medium to be pressed in Fig. 4 flowing shown in arrow and is formed refrigerant closed loop, thus form a solar heat pump unit heat circulation.So go round and begin again, thus reach the object heated, meet user and heat needs.
Wherein, solar still 1 is in thermal-arrest state as heat collector throughout the year, by the heated condenser be arranged in parallel with load side condenser/evaporator 8, can meet user throughout the year to the needs of health hot water.At transition season when rich more than solar energy optical-thermal, control valve DF3-1, control valve DF3-2 open, solar thermal collector and underground pipe side form a train, utilize the circulating pump of underground pipe side that the waste heat of solar energy optical-thermal is proceeded to rock-soil layer accumulation of heat through buried pipe end evaporative condenser 3 circulation, for winter heating makes heat deposit, prevent summer in winter unbalanced phenomenon.Have the user in underground heat storage pond, the waste heat of solar energy optical-thermal can also be stored by underground heat storage pond.
Solar energy heating adopts low form organic working medium as cold-producing medium self-loopa heat exchange, because solar energy optical-thermal and the Temperature Difference Ratio solar energy optical-thermal of heat-absorbing medium and cold-producing medium and the temperature difference of water are twice above, cold-producing medium can absorb solar energy optical-thermal substantially, and when thermal-arrest meets heat supply needs, heat pump carries out heat exchange and promotes temperature.The configuration of solar energy heating area is only equivalent to conventional with 20 ~ 40% with water heat exchange, and the cost that solar energy optical-thermal uses is compared usual manner and reduced by 50 ~ 70%.
(2), night or successive cloudy days solar illuminating condition bad not by run solar heat pump unit meet user heat require time, then automatically switch to air source heat pump unit, as shown in Figure 5, during unit operation, control valve DF2-1, control valve DF7-1, control valve DF4-1, control valve DF4-2, control valve DF2-2 open, other control valves are closed, and cold-producing medium press in Fig. 5 flowing shown in arrow and formed refrigerant closed loop, thus a formation air source heat pump unit heat circulation.So go round and begin again, thus reach the object heated, meet user and heat needs.The workflow of air source heat pump unit is similar to solar heat pump unit, does not repeat them here.
Air-source refrigeration is ripe technology.Air-source heats, and is subject to the series of problems such as efficiency and weak effect that microthermal climate heat-obtaining efficiency is low, the equipment manufacturing cost of heat pump low temperature heat-obtaining is high, the frequent frosting defrost of the large appearance of air humidity causes.The present invention introduces solar energy, underground pipe and electric heating and air-source heat-obtaining is complementary, effectively can avoid the impact of interim pole microthermal climate.Hollow air machinery configuration of the present invention is only equivalent to 50 ~ 75% of conventional simple air source heat pump configuration.
(3), when outside air temperature lower than subzero 17 DEG C or air humidity critical hoarfrost point time, there is obviously decay in air source heat pump unit, load side heating needs cannot be met, then automatically switch to earth source heat pump unit, the water run by underground pipe Inner eycle heat supply from underground heat-obtaining.As shown in Figure 6, during unit operation, control valve DF2-1, control valve DF7-1, control valve DF5-1, control valve DF5-2, control valve DF2-2 open, other control valves are closed, cold-producing medium to be pressed in Fig. 6 flowing shown in arrow and is formed refrigerant closed loop, thus form an earth source heat pump unit heat circulation.So go round and begin again, thus reach the object heated, meet user and heat needs.The workflow of earth source heat pump unit is similar to solar heat pump unit, does not repeat them here.
(4), for the outdoor user thus not possessing operably source heat pump unit condition without underground pipe engineering, then electrical heating heat pump unit is automatically switched to.As shown in Figure 7, during unit operation, control valve DF2-1, control valve DF7-1, control valve DF6-1, control valve DF6-2, control valve DF2-2 open, other control valves are closed, cold-producing medium is heated in electric evaporator 4, evaporation endothermic, and to press in Fig. 7 flowing shown in arrow and form refrigerant closed loop, thus form an electrical heating heat pump unit heat circulation.So go round and begin again, thus reach the object heated, meet user and heat needs.
In sum, the energy-saving residential central air-of compound energy heat-pump-type of the present invention, adopt solar source, air Cooling and Heat Source, underground pipe ground source Cooling and Heat Source and electric power thermal source complementary and accumulation of energy, achieve mutual compensation and the comprehensive utilization of diversification resource, optimum Match is reached with the change in season, heat is stored when freezing, cold is stored when heating, save the use of the consumption-type energy such as electric energy substantially, achieve the comprehensive utilization of the energy, reach cooling in summer, winter heating and four-season hot-water supply target, ensure the normal economical operation of central air-conditioning system, meet the refrigerating/heating demand that villa or process of villa independently build user, reach the actual effect optimizing investment structure and improve utilization rate of equipment and installations.
The above is only the citing of better embodiment of the present invention, the part wherein do not addressed in detail, and the principle etc. as heat pump is the common practise of those of ordinary skill in the art.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (9)
1. the control method of the energy-saving residential central air-of compound energy heat-pump-type, it is characterized in that, the energy-saving residential central air-of described compound energy heat-pump-type comprises: the solar heat pump unit be arranged in parallel, air source heat pump unit, earth source heat pump unit and electrical heating heat pump unit; Described solar heat pump unit, air source heat pump unit, earth source heat pump unit and electrical heating heat pump units shared compressor and a load side condenser/evaporator and be all controlled by automatic control unit;
The control method of the energy-saving residential central air-of described compound energy heat-pump-type comprises the following steps:
(1) under cooling condition, controlled by automatic control unit, preferentially operably source heat pump unit; When local source heat pump unit overload operation causes temperature to reach setting protection, switchover operation air source heat pump unit;
(2) under heating condition, controlled by automatic control unit, preferential operation solar heat pump unit; Night or successive cloudy days solar illuminating condition is bad when can not meet instructions for use, switchover operation air source heat pump unit; When temperature lower than subzero 17 DEG C or air humidity critical hoarfrost point time, switchover operation earth source heat pump unit; If cannot operably source heat pump unit, then switchover operation electrical heating heat pump unit.
2. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 1, it is characterized in that: described solar heat pump unit comprises solar still, described solar still, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described solar heat pump unit through refrigerant pipeline serial connection.
3. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 2, it is characterized in that: described solar heat pump unit also comprises the heated condenser in parallel with described load side condenser/evaporator, for meeting user at any time to the needs of hot water; And the underground heat storage pond in parallel with described load side condenser/evaporator, for storing solar energy optical-thermal more than needed.
4. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 1, it is characterized in that: described air source heat pump unit comprises air-source evaporative condenser, described air-source evaporative condenser, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described air source heat pump unit through refrigerant pipeline serial connection.
5. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 1, it is characterized in that: described earth source heat pump unit comprises the underground pipe being vertically installed in underground, described underground pipe is connected in series with circulating pump and forms ground water circulation pipeline; And the buried pipe end evaporative condenser to be connected in series with described ground water circulation pipeline, described buried pipe end evaporative condenser, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described earth source heat pump unit through refrigerant pipeline serial connection.
6. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 5, it is characterized in that: described underground pipe is single U-shaped underground pipe or double-U-shaped underground pipe, the diameter of described underground pipe is 25 ~ 40 ㎜, be embedded in well that diameter is 110 ~ 150 ㎜, the depth of burying 60 ~ 80 meters.
7. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 1, it is characterized in that: described electrical heating heat pump unit comprises electric evaporator, described electric evaporator, described compressor and described load side condenser/evaporator form the refrigerant closed loop of described electrical heating heat pump unit through refrigerant pipeline serial connection.
8. the control method of the energy-saving residential central air-of compound energy heat-pump-type as described in any one of claim 1 to 7, is characterized in that: described automatic control unit comprises PLC single-chip microcomputer.
9. the control method of the energy-saving residential central air-of compound energy heat-pump-type as claimed in claim 3, it is characterized in that, under adopting solar heat pump unit style thermal condition, controlled by described automatic control unit, selectively make described heated condenser connect or described heated condenser and described underground heat storage pond are all connected.
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| CN104534734B (en) * | 2014-12-04 | 2017-06-09 | 上海交通大学 | A kind of multiple source-coupled carbon dioxide earth-source hot-pump system |
| CN108444152B (en) * | 2018-04-02 | 2024-02-06 | 高旭 | Full-efficiency combined air source heat pump system |
| CN109764479B (en) * | 2018-12-11 | 2020-06-05 | 珠海格力电器股份有限公司 | Heat pump type constant temperature and humidity unit temperature control method and device and constant temperature and humidity machine |
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| JP3583085B2 (en) * | 2001-06-21 | 2004-10-27 | 株式会社東光工業 | Air conditioning system using geothermal energy and zeolite |
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| US4325357A (en) * | 1980-05-12 | 1982-04-20 | Wormser Eric M | Solar energy and ground-water cooling devices |
| CN1321866A (en) * | 2001-04-30 | 2001-11-14 | 大连冰山集团有限公司 | Solar, air, electric heating combined heat-pump system for heating, air-conditioning and heating water |
| CN2748843Y (en) * | 2003-10-11 | 2005-12-28 | 广西大学 | Solar energy and ground-source heat pump air conditioning and water heating apparatus |
| CN201163124Y (en) * | 2008-02-18 | 2008-12-10 | 中原工学院 | Air-solar energy-geothermal energy three-heat source composite heat pump |
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| CN101358784A (en) * | 2008-09-24 | 2009-02-04 | 天津大学 | Solar thermal storage and geothermal heat pump group system |
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| CN103528295A (en) | 2014-01-22 |
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