CN110848846B - Solar air conditioner heat pump system, control method and air conditioner - Google Patents
Solar air conditioner heat pump system, control method and air conditioner Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 362
- 239000003507 refrigerant Substances 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000004378 air conditioning Methods 0.000 claims abstract description 25
- 230000005855 radiation Effects 0.000 claims description 30
- 238000005057 refrigeration Methods 0.000 claims description 24
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 description 15
- 239000008236 heating water Substances 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 230000008020 evaporation Effects 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 208000032825 Ring chromosome 2 syndrome Diseases 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a solar air conditioner heat pump system, a control method and an air conditioner, wherein the solar air conditioner heat pump system comprises: the solar heat collector comprises a first water pipeline, wherein the solar heat collector is arranged on the first water pipeline at the same time, so that water in the first water pipeline can exchange heat with the solar heat collector to prepare hot water through solar energy; the second water pipeline, the second water pipeline and the refrigerant pipeline exchange heat in the water side heat exchanger to prepare hot water through a refrigerant; the solar collector also allows the refrigerant in the refrigerant line to be discharged in the solar collector to produce cold water in the water side heat exchanger. The invention can simultaneously have the functions of heating and refrigerating when the solar heat collector and the air-conditioning heat pump unit are used in a linkage way, improves the utilization rate of the flat plate heat collector, further improves the heating and refrigerating efficiency of the air-conditioning unit, and achieves the purpose of saving energy.
Description
Technical Field
The invention belongs to the technical field of heat pumps, and particularly relates to a solar air conditioner heat pump system, a control method and an air conditioner.
Background
The radiation refrigeration means that an object on the ground exchanges radiation heat with an outer space with low temperature through a wave band of 8-13 mu m of one of the atmospheric windows, so that a certain refrigeration effect is achieved. The radiation refrigeration has the advantages of zero energy consumption, zero pollution, no moving parts and the like, and has positive significance for cooling, energy saving and environmental protection of the air conditioner of the building.
At present, a solar heat collector has the functions of heating water and radiation refrigeration, but the radiation refrigeration function is only limited to cooling air, for example, the patent number is CN103776196A, a comprehensive application device for heating water in the daytime and cooling air at night is developed, and cooling of an air conditioning unit is not considered. Patent number is CN101498513A, develops an integrated flat-plate solar heat pump water heating device, and the heat collector can serve as an evaporator, but only has a water heating function and no refrigeration function, so that the practicability of the heat collector is greatly reduced.
Because the solar flat-plate heat collector in the prior art has low utilization efficiency, the solar flat-plate heat collector has single function, the solar heat collector and the air-conditioning heat pump unit can not have the functions of heating and cooling when being used in a linkage way, the air-conditioning heat pump unit has low refrigerating and heating energy efficiency and the like, the invention designs a control method and an air conditioner.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the solar heat collector and the air conditioner heat pump unit in the prior art cannot have the functions of heating and cooling in a linkage manner, and the like, so that the solar air conditioner heat pump system, the control method and the air conditioner are provided.
The invention provides a solar air conditioner heat pump system, which comprises:
the solar heat collector is arranged on a refrigerant pipeline between the compressor and the outdoor heat exchanger, the refrigerant in the refrigerant pipeline can exchange heat with the solar heat collector in the solar heat collector, and the solar heat collector further comprises a first water pipeline which is also arranged on the first water pipeline at the same time, so that water in the first water pipeline can exchange heat with the solar heat collector to prepare hot water through solar energy; the second water pipeline, the second water pipeline and the refrigerant pipeline exchange heat in the water side heat exchanger to prepare hot water through a refrigerant; the solar collector also enables the refrigerant in the refrigerant line to be discharged in the solar collector to produce cold water in the waterside heat exchanger.
Preferably, the method comprises the steps of,
the refrigerant pipelines at two ends of the solar heat collector are also parallelly connected with parallel pipelines, the refrigerant pipelines at two ends of the solar heat collector are provided with first control valves, and the parallel pipelines are provided with second control valves.
Preferably, the method comprises the steps of,
the water heater also comprises a hot water tank, wherein the first water pipeline can be communicated into the hot water tank, and the second water pipeline can be communicated into the hot water tank; and/or the number of the groups of groups,
the first water pipeline is provided with a first water pump, and the second water pipeline is provided with a second water pump.
Preferably, the method comprises the steps of,
the second water pipeline is communicated with the hot water tank through a first branch, the cold water tank is further included, the second water pipeline is communicated with the cold water tank through a second branch, and the first branch and the second branch are arranged in parallel.
Preferably, the method comprises the steps of,
the first branch is provided with a hot water control valve, and the second branch is provided with a cold water control valve.
Preferably, the method comprises the steps of,
the solar heat collector is provided with a first temperature sensor, the hot water tank is provided with a second temperature sensor, and the outdoor heat exchanger is provided with a third temperature sensor; and/or a fan is arranged at the outdoor heat exchanger; and/or, the compressor exhaust port is also provided with a pressure sensor.
Preferably, the method comprises the steps of,
the solar heat collector comprises a heat collecting plate, wherein the heat collecting plate is provided with a radiation refrigerating and heating coating, a refrigerant pipe allowing a refrigerant to pass through is arranged in the heat collecting plate, and the refrigerant pipe is provided with a refrigerant inlet and a refrigerant outlet; the solar collector has disposed therein a water pipe allowing water to pass therethrough, the water pipe having a water inlet and a water outlet.
Preferably, the method comprises the steps of,
the solar heat collector also comprises a transparent cover plate which is covered on the heat collecting plate; and/or the heat collecting plate is also provided with heat preservation cotton.
Preferably, the method comprises the steps of,
the solar heat collector is characterized by further comprising a four-way valve, wherein the first end of the four-way valve is connected with the exhaust end of the compressor, the second end of the four-way valve is connected with the air suction end of the compressor, the third end of the four-way valve is connected with the solar heat collector, and the fourth end of the four-way valve is connected with the water side heat exchanger.
The invention also provides a control method of the heat pump system, which is characterized in that:
the solar air-conditioning heat pump system according to any one of the preceding claims is used for controlling the water side heat exchanger according to different temperature ranges of the solar heat collector to prepare hot water or cold water.
Preferably, the method comprises the steps of,
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a first water pump and a second water pump:
the temperature T of the solar heat collector detected by the first temperature sensor Collection set And the water temperature T of the hot water tank detected by the second temperature sensor Heat of the body If T Collection set ＞T Heat of the body And controlling to turn on the first water pump, controlling to turn off the second water pump, and turning off the compressor.
Preferably, the method comprises the steps of,
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the first temperature sensorSolar collector temperature T detected by collector Collection set The second temperature sensor detects the water temperature T of the hot water tank Heat of the body And the third temperature sensor detects the outdoor ambient temperature T Ring(s) If T Ring(s) ＜T Collection set ≤T Heat of the body And controlling to close the first water pump, controlling to open the second water pump, opening the compressor, opening the first control valve, closing the second control valve, opening the hot water control valve and closing the cold water control valve.
Preferably, the method comprises the steps of,
when a fan for radiating heat of the outdoor heat exchanger is further included, the fan is turned on and operated to a low damper.
Preferably, the method comprises the steps of,
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor Collection set The second temperature sensor detects the water temperature T of the hot water tank Heat of the body And the third temperature sensor detects the outdoor ambient temperature T Ring(s) If T Ring(s) -t 0 ＜T Collection set ≤T Ring(s) Controlling to close the first water pump, controlling to open the second water pump, opening the compressor, opening the first control valve, closing the second control valve, opening the hot water control valve, and closing the cold water control valve, wherein t 0 Is an initial preset temperature.
Preferably, the method comprises the steps of,
when a fan for radiating heat of the outdoor heat exchanger is further included, the fan is turned on and operated to the middle windshield.
Preferably, the method comprises the steps of,
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor Collection set The second temperature sensor detects the water temperature T of the hot water tank Heat of the body And the third temperature sensor detects the outdoor ambient temperature T Ring(s) If T Collection set ≤T Ring(s) -t 0 And controlling to close the first water pump, controlling to open the second water pump, opening the compressor, closing the first control valve, opening the second control valve, opening the hot water control valve and closing the cold water control valve.
Preferably, the method comprises the steps of,
when a fan for radiating heat of the outdoor heat exchanger is further included, the fan is turned on and operated to a high windshield.
Preferably, the method comprises the steps of,
when the system is operated at night and cold water is required to be prepared, and comprises a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
and controlling to close the first water pump, controlling to open the second water pump, opening the compressor, opening the first control valve, closing the second control valve, closing the hot water control valve and opening the cold water control valve.
Preferably, the method comprises the steps of,
when the outdoor heat exchanger also comprises a fan for radiating heat, when T High pressure Turning on the fan and running to a high windshield at the temperature of more than t1 ℃; when T2 ℃ is less than T High pressure Turning on the fan at the temperature of less than or equal to t1 ℃ and running to a middle windshield; when T is High pressure Turning on the fan and operating to a low damper at less than or equal to T2 ℃, wherein T High pressure The saturated temperature corresponding to the exhaust pressure of the exhaust port of the compressor is t1 which is a first preset temperature, and t2 which is a second preset temperature.
The invention also provides an air conditioner, which comprises the solar air conditioner heat pump system.
The solar air conditioner heat pump system, the control method and the air conditioner provided by the invention have the following beneficial effects:
according to the invention, hot water can be effectively prepared through solar energy by arranging the solar heat collector in the way of arranging the first water pipeline, and can be prepared through heating water in the second water pipeline through the refrigerant in the water side heat exchanger by the refrigerant circulating pipeline and the water side heat exchanger, and the solar heat collector is arranged on the refrigerant pipeline, so that the refrigerant can be radiated in the solar heat collector to absorb heat to prepare cold water, and meanwhile, the power consumption of the outdoor heat exchanger (condenser) can be reduced, namely, the heat can be radiated to the condenser of the air conditioner while the cold water can be effectively prepared through radiation refrigeration of the solar heat collector at night, so that the solar heat collector and the air conditioner heat pump unit can simultaneously have the functions of heating and refrigerating when being used in a linkage way, the utilization rate of the flat plate heat collector is improved, the heating and refrigerating efficiency of the air conditioner unit is further improved, and the energy saving purpose is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a solar air conditioning heat pump system of the present invention;
FIG. 2 is an internal cross-sectional view of the solar collector of FIG. 1;
fig. 3 is a front cross-sectional view of fig. 2.
The reference numerals in the drawings are as follows:
1. a compressor; 2. a gas-liquid separator; 3. a pressure sensor; 4. a four-way valve; 5. a first control valve; 6. a second control valve; 7. a solar collector; 71. a refrigerant pipe; 711. a refrigerant inlet; 712. a refrigerant outlet; 72. a water pipe; 721. a water inlet; 722. a water outlet; 73. a heat collecting plate; 74. a transparent cover plate; 75. thermal insulation cotton; 8. a first temperature sensor; 9. a first water pump; 10. a blower; 11. an outdoor heat exchanger; 12. a third temperature sensor; 13. a hot water tank; 14. a cold water tank; 15. a hot water control valve; 16. a cold water control valve; 17. a second water pump; 18. a throttle device; 19. a water side heat exchanger; 20. a second temperature sensor; 101. a first water line; 102. a second water line; 103. a parallel pipeline; 104. a first branch; 105. a second branch.
Detailed Description
As shown in fig. 1 to 3, the present invention provides a solar air conditioner heat pump system, comprising:
the solar heat collector comprises a compressor 1, an outdoor heat exchanger 11, a water side heat exchanger 19 and a throttling device 18, wherein a solar heat collector 7 is further arranged on a refrigerant pipeline between the compressor 1 and the outdoor heat exchanger 11, and refrigerant in the refrigerant pipeline can exchange heat with the solar heat collector in the solar heat collector;
the solar heat collector also comprises a first water pipeline 101, and the solar heat collector 7 is also arranged on the first water pipeline 101 at the same time, so that water in the first water pipeline 101 can exchange heat with the solar heat collector 7 to prepare hot water through solar energy; a second water pipeline 102, wherein the second water pipeline 102 and the refrigerant pipeline exchange heat in the water side heat exchanger 19 to prepare hot water by a refrigerant; the solar collector 7 also enables the refrigerant in the refrigerant line to release heat in the solar collector 7 to produce cold water in the water side heat exchanger.
According to the invention, hot water can be effectively prepared through solar energy by arranging the solar heat collector in the way of arranging the first water pipeline, and can be prepared through heating water in the second water pipeline through the refrigerant in the water side heat exchanger by the refrigerant circulating pipeline and the water side heat exchanger, and the solar heat collector is arranged on the refrigerant pipeline, so that the refrigerant can be radiated in the solar heat collector to absorb heat to prepare cold water, and meanwhile, the power consumption of the outdoor heat exchanger (condenser) can be reduced, namely, the heat can be radiated to the condenser of the air conditioner while the cold water can be effectively prepared through radiation refrigeration of the solar heat collector at night, so that the solar heat collector and the air conditioner heat pump unit can simultaneously have the functions of heating and refrigerating when being used in a linkage way, the utilization rate of the flat plate heat collector is improved, the heating and refrigerating efficiency of the air conditioner unit is further improved, and the energy saving purpose is achieved.
According to the invention, the radiation refrigeration film is added on the front surface of the heat collecting plate of the solar heat collector, and the refrigerant pipeline is added on the back surface of the heat collecting plate, so that the flat plate heat collector is linked with the air conditioner heat pump unit, three functions of solar water heating, solar energy and air energy water heating, radiation refrigeration and air conditioner refrigeration are realized, the utilization rate of the flat plate heat collector is improved, the heating and refrigerating efficiency of the air conditioner unit is further improved, and the purpose of saving energy is achieved.
The invention adopts the solar flat plate collector with the radiation refrigeration function, realizes the linkage control and the use of the collector and the air-conditioning heat pump unit, enhances the practicability of the collector, further improves the energy efficiency of the air-conditioning heat pump unit and saves energy. The utilization efficiency of the solar flat-plate collector is improved, the problem of single function of the solar flat-plate collector is solved, and the solar flat-plate collector and an air-conditioning heat pump unit are used in a linkage way; and the refrigerating and heating energy efficiency of the air-conditioning heat pump unit is improved.
The solar heat collector is not generally utilized at night, and the solar heat collector with the radiation refrigeration film is adopted, so that heat can be dissipated to the condenser of the air conditioner through radiation refrigeration at night. The hot water pipeline and the refrigerant pipeline are integrated together, and only one path of fluid passes through the heat collector, for example, the heat collector can be used for heating water by water in the daytime, and the heat collector is used for cooling the refrigerant at night by the refrigerant. When the surface temperature of the solar panel is lower than the water tank temperature but higher than the ambient temperature, the heat collector can absorb heat of the heat collector when the refrigerant is used as an evaporator, and water in the heat collector does not flow. The radiation refrigeration means that an object on the ground performs radiation heat exchange with an outer space with very low temperature through an 8-13 mu m wave band of one of the atmospheric windows, so that a certain refrigeration effect is achieved, and the temperature of the surface of the heat collector is lower than that of air. The compressed high-temperature high-pressure refrigerant firstly enters a heat collector to release heat, then enters a condenser to release heat, and then enters a throttling device 18 to throttle into low-pressure liquid, and then evaporates in a water side heat exchanger 19 to absorb heat for refrigeration.
Preferably, the method comprises the steps of,
parallel pipelines 103 are further arranged on the refrigerant pipelines at two ends of the solar heat collector 7 in parallel, a first control valve 5 is arranged on the refrigerant pipelines at two ends of the solar heat collector 7, and a second control valve 6 is arranged on the parallel pipelines 103. The solar heat collector is in a further preferable structural form, and the refrigerant pipeline where the solar heat collector is arranged can be subjected to short circuit action through the arrangement of the parallel pipeline, so that the intelligent control of solar energy on heating or refrigerating of the refrigerant is realized by opening the parallel pipeline and closing the refrigerant pipeline of the solar heat collector under the condition that heat exchange between the solar heat collector and the refrigerant is not needed, and closing the parallel pipeline and opening the refrigerant pipeline of the solar heat collector when heat exchange between the solar heat collector and the refrigerant is needed.
Preferably, the method comprises the steps of,
the water heater also comprises a hot water tank 13, wherein the first water pipeline 101 can be communicated with the hot water tank 13, and the second water pipeline 102 can be communicated with the hot water tank 13; and/or the number of the groups of groups,
the first water pipeline 101 is provided with a first water pump 9, and the second water pipeline 102 is provided with a second water pump 17.
This is a further preferred form of construction of the invention whereby the hot water tank is capable of communicating with a hot water waterway for storing hot water, optionally from the first water line and/or from the second water line; whether water in the first water pipeline flows or not can be controlled by the first water pump, and whether water in the second water pipeline flows or not can be controlled by the second water pump.
Preferably, the method comprises the steps of,
the second water pipeline 102 is further communicated into the hot water tank 13 through a first branch 104, the cold water tank 14 is further included, the second water pipeline 102 is further communicated into the cold water tank 14 through a second branch 105, and the first branch 104 and the second branch 105 are arranged in parallel. Through the setting form of first branch road and second branch road and cold water tank, can make the second water pipeline communicate to first branch road according to actual conditions to in letting in the hot water tank with the hot water that the heat transfer formed, perhaps communicate to the second branch road, in letting in the cold water tank with the cold water that the heat transfer formed.
Preferably, the method comprises the steps of,
the first branch 104 is provided with a hot water control valve 15, and the second branch 105 is provided with a cold water control valve 16. This is a preferred control valve on the first and second branches of the present invention, and the first branch communication (control of opening the hot water control valve 15 and closing the cold water control valve 16 when the water side heat exchanger is heated to form hot water) or the second branch communication (control of closing the hot water control valve 15 and closing the cold water control valve 16 when the water side heat exchanger is cooled to form cold water) can be controlled as needed.
Preferably, the method comprises the steps of,
the solar heat collector 7 is provided with a first temperature sensor 8, the hot water tank 13 is provided with a second temperature sensor 20, and the outdoor heat exchanger 11 is provided with a third temperature sensor 12; and/or, a fan 10 is further arranged at the outdoor heat exchanger 11; and/or, the compressor 1 exhaust port is also provided with a pressure sensor 3. The heat pump system is a further preferable structural form, the first temperature sensor can detect the temperature Tset on the solar heat collector, the second temperature sensor detects the temperature Theat of the hot water tank, and the third temperature sensor detects the outdoor environment temperature Tloop, so that the system can be switched and controlled for solar heating water, solar energy plus air conditioning heating water, radiation heating water and the like according to the detected temperature range condition of the heat collector; the air compressor can be controlled to operate in low grade, medium grade or high grade according to the actual heat exchange capacity, and the exhaust pressure of the compressor can be detected through the pressure sensor, so that the exhaust saturation temperature is obtained, and the good and poor heat exchange effects are effectively judged.
Preferably, the method comprises the steps of,
the solar heat collector 7 comprises a heat collecting plate 73, wherein the heat collecting plate 73 is provided with a radiation refrigerating and heating coating, a refrigerant pipe 71 allowing a refrigerant to pass through is arranged in the heat collecting plate 73, and the refrigerant pipe 71 is provided with a refrigerant inlet 711 and a refrigerant outlet 712; the solar collector 7 has disposed therein a water pipe 72 allowing water to pass therethrough, the water pipe 72 having a water inlet 721 and a water outlet 722. The solar heat collector is in a preferable structural form, the structure of the solar heat collector is shown in figure 2 through the structural form of a heat collecting plate, the top of the solar heat collector is provided with a transparent cover plate, the heat collecting plate with a radiation refrigeration coating is arranged below the transparent cover plate, the back surface of the heat collecting plate is provided with a water pipe and a refrigerant pipe, and the bottom and the periphery of the heat collecting plate are provided with heat insulation materials. The solar heat collector can heat water in the daytime, and can cool the water by radiation at night to serve as a condenser for cooling the refrigerant, so that the refrigerating energy efficiency of the unit is improved. Meanwhile, when the sun is insufficient in the daytime, the solar energy collector can serve as an evaporator to absorb solar radiation, and heating efficiency of the unit is improved.
Preferably, the method comprises the steps of,
the solar heat collector 7 further comprises a transparent cover plate 74 covering the heat collecting plate 73; and/or, the heat collecting plate 73 is further provided with heat insulation cotton 75. The high-temperature and high-pressure refrigerant firstly passes through the heat collector to perform first heat dissipation, and then passes through the condenser to perform second heat dissipation, so that the heat dissipation is more than that of the refrigerant directly entering the condenser, the outlet temperature of the condenser is reduced, the power consumption of the compressor is reduced, and the energy efficiency is improved.
Preferably, the method comprises the steps of,
the solar heat collector also comprises a four-way valve 4, wherein a first end of the four-way valve 4 is connected with an exhaust end of the compressor 1, a second end of the four-way valve is connected with an air suction end of the compressor 1, a third end of the four-way valve is connected with the solar heat collector 7, and a fourth end of the four-way valve is connected with the water side heat exchanger 19. The four-way valve can effectively switch between cooling water or heating water of the water side heat exchanger.
The invention also provides a control method of the heat pump system, which uses the solar air conditioner heat pump system according to any one of the preceding claims to control the water side heat exchanger according to different temperature ranges of the solar heat collector so as to prepare hot water or cold water.
The invention can effectively prepare hot water through solar energy, heat water in the second water pipeline through the refrigerant in the water side heat exchanger, and also can make the refrigerant release heat in the solar heat collector through the solar heat collector arranged on the refrigerant pipeline, so that the refrigerant absorbs heat in the water side heat exchanger to prepare cold water, and simultaneously can reduce the power consumption of the outdoor heat exchanger (condenser), namely, the heat can be dissipated to the condenser of the air conditioner when the heat is effectively cooled through the radiation of the solar heat collector at night, so that the solar heat collector and the air conditioner heat pump unit can simultaneously have the functions of heating and cooling when being used in a linkage way, the utilization rate of the flat plate heat collector is improved, the heating and refrigerating efficiency of the air conditioner unit is further improved, and the purpose of saving energy is achieved.
Preferably, the method comprises the steps of,
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a first water pump and a second water pump:
the temperature T of the solar heat collector detected by the first temperature sensor Collection set And the water temperature T of the hot water tank detected by the second temperature sensor Heat of the body If T Collection set ＞T Heat of the body The first water pump 9 is controlled to be turned on, the second water pump 17 is controlled to be turned off, and the compressor 1 is turned off.
This is the preferred control mode under the first working condition of the invention, namely the preferred control mode when the solar radiation is sufficient in daytime, and the function of heating water by solar energy alone (enough without starting a heat pump) can be realized. Firstly, detecting the temperature Tset of the solar heat collector, if the T set is T set which is more than T heat, adopting the solar heat collector to independently heat water, starting a waterway of the circulating hot water side of the first water pump 9 at the moment, and closing the second water pump 17.
Preferably, the method comprises the steps of,
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor 8 Collection set The second temperature sensor 20 detects the temperature T of the hot water tank Heat of the body And the third temperature sensor 12 detects the outdoor ambient temperature T Ring(s) If T Ring(s) ＜T Collection set ≤T Heat of the body And controlling to close the first water pump 9, controlling to open the second water pump 17, opening the compressor 1, opening the first control valve 5, closing the second control valve 6, opening the hot water control valve 15 and closing the cold water control valve 16.
The solar water heater is a preferred control mode under the second working condition of the solar water heater, namely when solar radiation is insufficient in daytime, solar energy and air energy can be used for heating water, (simply solar energy is insufficient for heating water, sunlight is insufficient at the moment, the temperature of the heat collector is lower than that of the hot water tank, hot water cannot be independently heated, but the temperature is higher than the ambient temperature, and the heat collector can be used as an evaporator). If the T set is T ring < T set less than or equal to T heat, the solar heat collector and the air-conditioning heat pump unit are linked, at the moment, the solar heat collector serves as an evaporator, the evaporation temperature of the whole system is improved, the fan runs in a low wind shield, the unit running energy efficiency is further improved (the temperature of the heat collector is higher than the environment temperature, and the evaporation temperature of the refrigerant in the heat collector is higher than the evaporation temperature when the refrigerant singly (without the heat collector) runs along the evaporator, so that the evaporation temperature of the whole system is improved). The specific control is as follows: the hot water solenoid valve is opened, the cold water solenoid valve is closed, the second water pump 17 is opened, the first water pump 9 is closed, the first control valve 5 (preferably the first solenoid valve) is opened, the second control valve 6 (preferably the second solenoid valve) is closed, the unit starts to operate in a water heating mode, and the fan operates in a low wind shield.
Preferably, the method comprises the steps of,
when a blower 10 for radiating heat from the outdoor heat exchanger 11 is further included, the blower 10 is turned on and operated to a low damper. Because the evaporating temperature of the system is high, the fan does not need to operate a high windshield to improve the evaporating temperature, so that the fan operates in a low grade, the power of the whole machine is low, and the energy efficiency of the unit is improved. The larger the general windshield is, the higher the fan power is, the larger the air quantity is, and the better the heat exchange effect of the air and the fins is.
Preferably, the method comprises the steps of,
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor 8 Collection set The second temperature sensor 20 detects the temperature T of the hot water tank Heat of the body And the third temperature sensor 12 detects the outdoor ambient temperature T Ring(s) If T Ring(s) -t 0 ＜T Collection set ≤T Ring(s) (t 0 At a preset temperature, preferably 2 ℃), then the control is turned offAnd a water pump 9 for controlling to turn on a second water pump 17, turning on the compressor 1, turning on the first control valve 5, closing the second control valve 6, and turning on the hot water control valve 15 and closing the cold water control valve 16, wherein t0 is an initial preset temperature.
The solar heat collector is a preferable control mode under the third working condition, namely solar energy and air energy can be used for producing hot water when solar energy radiation is insufficient in daytime, at the moment, the temperature of the solar heat collector can not provide refrigerant for evaporation and heat absorption, when the temperature of the heat collector T is T-ring-2 < T-ring less than or equal to the temperature of the environment, although the temperature of the heat collector is less than or equal to the temperature of the environment, the temperature is higher than the evaporation temperature of the system, and (generally, the evaporation temperature is 6 ℃ lower than the temperature of the environment), at the moment, part of heat in the heat collector can absorb heat for a refrigerating system, so that the heat pump and the solar energy are operated to complete the production of the hot water.
Preferably, the method comprises the steps of,
when a blower 10 for radiating heat from the outdoor heat exchanger 11 is further included, the blower 10 is turned on and operated to the windshield. If the T set is the T ring-2 < T set less than or equal to the T ring, the linkage mode of the solar heat collector and the air conditioner heat pump unit is adopted, but a wind shield is arranged in the running of the fan. When the T set of the heat collector is T ring-2 < T set less than or equal to T ring, the temperature of the heat collector is less than or equal to the ambient temperature, but higher than the evaporating temperature of the system (generally, the evaporating temperature is 6 degrees lower than the ambient temperature), and at the moment, part of heat exists in the heat collector to absorb heat for the refrigerating system. Because the heat of the heat collector is not enough at this moment, the T ring-2 is smaller than the T ring, but the evaporation temperature of the system can be slightly increased, and the wind shield can meet the evaporation requirement of the system during the operation of the fan.
Preferably, the method comprises the steps of,
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor 8 Collection set The second temperature sensor 20 detects the temperature T of the hot water tank Heat of the body And the third temperatureThe sensor 12 detects the outdoor ambient temperature T Ring(s) If T Collection set ≤T Ring(s) -t 0 (t 0 At a preset temperature, preferably 2 ℃), the first water pump 9 is controlled to be turned off, the second water pump 17 is controlled to be turned on, the compressor 1 is turned on, the first control valve 5 is turned off, the second control valve 6 is turned on, the hot water control valve 15 is turned on, and the cold water control valve 16 is turned off.
The solar heat collector is a preferred control mode under the fourth working condition, namely when solar radiation is insufficient in daytime, the temperature of the solar heat collector can not provide heat for evaporation of the refrigerant, and only the heat pump can be independently operated to finish the preparation of hot water.
Preferably, the method comprises the steps of,
when a blower 10 for radiating heat from the outdoor heat exchanger 11 is further included, the blower 10 is turned on and operated to a high damper.
Because no heat collector provides heat, only the evaporator can absorb heat in the air, and a high wind shield needs to be operated, so that the evaporator can exchange heat with the air better, the evaporation temperature is improved, and the heat absorption capacity is increased.
If the T set is detected to be less than or equal to T ring-2, a heat pump mode is adopted independently. The specific control is as follows: the hot water electromagnetic valve is opened, the cold water electromagnetic valve is closed, the second water pump 17 is opened, the first control valve 5 is closed, the second control valve 6 is opened, the unit starts to operate the hot water heating mode, and the fan operates the high windshield.
Preferably, the method comprises the steps of,
when the system is operated at night and cold water is required to be prepared, and comprises a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the first water pump 9 is controlled to be turned off, the second water pump 17 is controlled to be turned on, the compressor 1 is turned on, the first control valve 5 is turned on, the second control valve 6 is turned off, the hot water control valve 15 is turned off, and the cold water control valve 16 is turned on.
The invention is a preferable control mode under the fifth working condition, namely cold water is prepared by radiation refrigeration of the solar heat collector at night, meanwhile, the power consumption of the outdoor heat exchanger is reduced, the condenser is cooled, cold water is refrigerated for a user at night in summer, and the user can blow cold air after the user connects the air disc.
Preferably, the method comprises the steps of,
when the fan 10 for radiating the heat of the outdoor heat exchanger 11 is further included, when T High pressure At > t1 ℃ (preferably 45 ℃), the fan 10 is turned on and run to a high damper; when T2 ℃ is less than T High pressure Turning on the fan 10 and running to a middle windshield at less than or equal to t1 ℃ (t 2 is preferably 40 ℃ and t1 is preferably 45 ℃); when T is High pressure At less than or equal to T2 ℃ (T2 is preferably 40 ℃), the fan 10 is turned on and operated to a low damper, where T High pressure The saturated temperature corresponding to the exhaust pressure of the exhaust port of the compressor is t1 which is a first preset temperature, and t2 which is a second preset temperature.
The refrigerant firstly enters the heat collector to dissipate heat and then enters the condenser to dissipate heat, so that the condensing pressure of the system is reduced, the rotating speed of the fan can be reduced, the power consumption is reduced, and the condensing heat dissipation requirement of the air conditioner can be met; when the high-pressure temperature is high, the high-pressure side heat exchange effect is not good, the rotating speed of the fan is required to be improved, the heat dissipation of the condenser is promoted, and if the high-pressure temperature is low, a low windshield can be operated, and the power consumption of the fan is reduced.
When the cooling water is needed at night (in summer, the cooling water is used for cooling a user at night, and the user can blow cold air after connecting the air disc), so that the radiation cooling and air conditioning cooling functions can be realized. Because the solar heat collector has the radiation refrigeration function, the solar heat collector can be used as a condenser for heat dissipation, thereby increasing the heat exchange area of the condensing side, reducing the rotating speed of a fan and improving the refrigeration energy efficiency of a unit. The specific control is as follows: the first step, open cold water solenoid valve, close hot water solenoid valve, open second water pump 17, close first water pump 9, the second step, open first control valve 5, close second control valve 6, the third step, the unit starts, the operation refrigeration mode, fan operation is according to the saturation temperature that exhaust pressure corresponds to adjust (the refrigerant gets into the heat collector at first and dispels the heat, reentrant condenser dispels the heat, the condensing pressure of system just has reduced like this, can reduce fan rotational speed at this moment, reduce the consumption, also can satisfy the air conditioner condensation heat dissipation demand). When the T high pressure is more than 45 ℃, the high windshield is operated, when the T high pressure is more than or equal to 40 ℃ and is less than or equal to 45 ℃, the medium windshield is operated, when the T high pressure is less than or equal to 40 ℃, the low windshield is operated (when the high pressure temperature is high, the high pressure side has poor heat exchange effect, the rotating speed of the fan is required to be improved at the moment, the heat dissipation of the condenser is promoted, and if the high pressure temperature is lower, the low windshield can be operated, and the power consumption of the fan is reduced).
The invention also provides an air conditioner, which comprises the solar air conditioner heat pump system.
According to the invention, hot water can be effectively prepared through solar energy by arranging the solar heat collector in the way of arranging the first water pipeline, and can be prepared through heating water in the second water pipeline through the refrigerant in the water side heat exchanger by the refrigerant circulating pipeline and the water side heat exchanger, and the solar heat collector is arranged on the refrigerant pipeline, so that the refrigerant can be radiated in the solar heat collector to absorb heat to prepare cold water, and meanwhile, the power consumption of the outdoor heat exchanger (condenser) can be reduced, namely, the heat can be radiated to the condenser of the air conditioner while the cold water can be effectively prepared through radiation refrigeration of the solar heat collector at night, so that the solar heat collector and the air conditioner heat pump unit can simultaneously have the functions of heating and refrigerating when being used in a linkage way, the utilization rate of the flat plate heat collector is improved, the heating and refrigerating efficiency of the air conditioner unit is further improved, and the energy saving purpose is achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (20)
1. A solar air conditioning heat pump system, characterized by: comprising the following steps:
the solar heat collector comprises a compressor (1), an outdoor heat exchanger (11), a water side heat exchanger (19) and a throttling device (18), wherein a solar heat collector (7) is further arranged on a refrigerant pipeline between the compressor (1) and the outdoor heat exchanger (11), and refrigerant in the refrigerant pipeline can exchange heat with the solar heat collector in the solar heat collector;
the solar water heater also comprises a first water pipeline (101) and the solar heat collector (7) which are also arranged on the first water pipeline (101) at the same time, so that water in the first water pipeline (101) can exchange heat with the solar heat collector (7) to prepare hot water through solar energy; the system also comprises a second water pipeline (102), wherein the second water pipeline (102) and the refrigerant pipeline exchange heat in the water side heat exchanger (19) so as to prepare hot water through a refrigerant; the solar collector (7) also enables the refrigerant in the refrigerant line to emit heat in the solar collector (7) to produce cold water in the water side heat exchanger.
2. The solar air conditioning heat pump system according to claim 1, wherein:
parallel pipelines (103) are further arranged on the refrigerant pipelines at two ends of the solar heat collector (7) in parallel, a first control valve (5) is arranged on the refrigerant pipelines at two ends of the solar heat collector (7), and a second control valve (6) is arranged on the parallel pipelines (103).
3. The solar air conditioning heat pump system according to claim 1, wherein:
the water heater also comprises a hot water tank (13), wherein the first water pipeline (101) can be communicated with the hot water tank (13), and the second water pipeline (102) can be communicated with the hot water tank (13); and/or the number of the groups of groups,
the first water pipeline (101) is provided with a first water pump (9), and the second water pipeline (102) is provided with a second water pump (17).
4. A solar air conditioning heat pump system according to claim 3, characterized in that:
the second water pipeline (102) is communicated into the hot water tank (13) through a first branch (104), the cold water tank (14) is further included, the second water pipeline (102) is communicated into the cold water tank (14) through a second branch (105), and the first branch (104) and the second branch (105) are arranged in parallel.
5. The solar air conditioning heat pump system of claim 4 wherein:
the first branch (104) is provided with a hot water control valve (15), and the second branch (105) is provided with a cold water control valve (16).
6. A solar air conditioning heat pump system according to any of claims 3-5, characterized in that:
a first temperature sensor (8) is arranged on the solar heat collector (7), a second temperature sensor (20) is arranged in the hot water tank (13), and a third temperature sensor (12) is arranged on the outdoor heat exchanger (11); and/or, a fan (10) is also arranged at the outdoor heat exchanger (11); and/or, the exhaust port of the compressor (1) is also provided with a pressure sensor (3).
7. A solar air conditioning heat pump system according to any of claims 1-5, characterized in that:
the solar heat collector (7) comprises a heat collecting plate (73), wherein the heat collecting plate (73) is provided with a radiation refrigeration and heating coating, a refrigerant pipe (71) allowing a refrigerant to pass through is arranged in the heat collecting plate (73), and the refrigerant pipe (71) is provided with a refrigerant inlet (711) and a refrigerant outlet (712); a water pipe (72) allowing water to pass through is arranged in the solar collector (7), and the water pipe (72) is provided with a water inlet (721) and a water outlet (722).
8. The solar air conditioning heat pump system according to claim 7, wherein:
the solar heat collector (7) further comprises a transparent cover plate (74) which is arranged on the heat collecting plate (73) in a covering mode; and/or, the heat collecting plate (73) is also provided with heat preservation cotton (75).
9. A solar air conditioning heat pump system according to any of claims 1-5, characterized in that:
the solar heat collector is characterized by further comprising a four-way valve (4), wherein the first end of the four-way valve (4) is connected with the exhaust end of the compressor (1), the second end of the four-way valve is connected with the air suction end of the compressor (1), the third end of the four-way valve is connected with the solar heat collector (7), and the fourth end of the four-way valve is connected with the water side heat exchanger (19).
10. A control method of a heat pump system, characterized by:
use of a solar air conditioning heat pump system according to any of claims 1-9 for producing hot or cold water in a water side heat exchanger controlled according to different temperature ranges of the solar collector.
11. The control method according to claim 10, characterized in that:
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a first water pump and a second water pump:
the temperature T of the solar heat collector detected by the first temperature sensor Collection set And the water temperature T of the hot water tank detected by the second temperature sensor Heat of the body If T Collection set ＞T Heat of the body And controlling to turn on the first water pump (9), controlling to turn off the second water pump (17), and turning off the compressor (1).
12. The control method according to claim 10, characterized in that:
when the heat pump system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor (8) Collection set The second temperature sensor (20) detects the water temperature T of the hot water tank Heat of the body And the third temperatureA sensor (12) detects the outdoor ambient temperature T Ring(s) If T Ring(s) ＜T Collection set ≤T Heat of the body And controlling to close the first water pump (9), controlling to open the second water pump (17), opening the compressor (1), opening the first control valve (5), closing the second control valve (6), opening the hot water control valve (15) and closing the cold water control valve (16).
13. The control method according to claim 12, characterized in that:
when a fan (10) for radiating heat from the outdoor heat exchanger (11) is further included, the fan (10) is turned on and operated to a low wind shield.
14. The control method according to claim 10, characterized in that:
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor (8) Collection set The second temperature sensor (20) detects the water temperature T of the hot water tank Heat of the body And the third temperature sensor (12) detects the outdoor ambient temperature T Ring(s) If T Ring(s) -t 0 ＜T Collection set ≤T Ring(s) And controlling to close the first water pump (9), controlling to open the second water pump (17), opening the compressor (1), opening the first control valve (5), closing the second control valve (6), opening the hot water control valve (15) and closing the cold water control valve (16), wherein t0 is the initial preset temperature.
15. The control method according to claim 14, characterized in that:
when a fan (10) for radiating heat of the outdoor heat exchanger (11) is further included, the fan (10) is turned on and operated to a windshield.
16. The control method according to claim 10, characterized in that:
when the system is operated under daytime sun light and simultaneously comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
the temperature T of the solar heat collector detected by the first temperature sensor (8) Collection set The second temperature sensor (20) detects the water temperature T of the hot water tank Heat of the body And the third temperature sensor (12) detects the outdoor ambient temperature T Ring(s) If T Collection set ≤T Ring(s) -t 0 And controlling to close the first water pump (9), controlling to open the second water pump (17), opening the compressor (1), closing the first control valve (5), opening the second control valve (6), opening the hot water control valve (15) and closing the cold water control valve (16).
17. The control method according to claim 16, characterized in that:
when a fan (10) for radiating heat of the outdoor heat exchanger (11) is further included, the fan (10) is turned on and operated to a high windshield.
18. The control method according to claim 10, characterized in that:
when the system is operated at night and cold water is required to be prepared, and comprises a first water pump, a second water pump, a first control valve, a second control valve, a hot water control valve and a cold water control valve:
and controlling to close the first water pump (9), controlling to open the second water pump (17), opening the compressor (1), opening the first control valve (5), closing the second control valve (6), closing the hot water control valve (15) and opening the cold water control valve (16).
19. The control method according to claim 18, characterized in that:
when also included for the outdoorWhen the fan (10) for radiating heat of the heat exchanger (11) is used as T High pressure Turning on the fan (10) and running to a high windshield at > t1 ℃; when T2 ℃ is less than T High pressure Opening the fan (10) and running to a middle windshield at the temperature of less than or equal to t1 ℃; when T is High pressure At less than or equal to T2 ℃, the fan (10) is turned on and operated to a low windshield, wherein T High pressure The saturated temperature corresponding to the exhaust pressure of the exhaust port of the compressor is t1 which is a first preset temperature, and t2 which is a second preset temperature.
20. An air conditioner, characterized in that: comprising a solar air conditioning heat pump system according to any of claims 1-9.
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| WO2018182084A1 (en) * | 2017-03-28 | 2018-10-04 | 위드케이 주식회사 | Heat pump system for simultaneous heating and cooling |
| CN207350614U (en) * | 2017-06-20 | 2018-05-11 | 西藏勃达微波装备股份有限公司 | A kind of solar heat pump multi-generation system |
| CN109838855A (en) * | 2017-11-26 | 2019-06-04 | 乐山通目科技有限公司 | Air source heat pump hot-water air-conditioning unit |
| CN211119816U (en) * | 2019-11-19 | 2020-07-28 | 珠海格力电器股份有限公司 | Solar air-conditioning heat pump system and air conditioner |
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