CN212409070U - Solar-assisted air energy water heater system - Google Patents
Solar-assisted air energy water heater system Download PDFInfo
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- CN212409070U CN212409070U CN202020830457.6U CN202020830457U CN212409070U CN 212409070 U CN212409070 U CN 212409070U CN 202020830457 U CN202020830457 U CN 202020830457U CN 212409070 U CN212409070 U CN 212409070U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 222
- 239000003507 refrigerant Substances 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 19
- 238000012546 transfer Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000002528 anti-freeze Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000007710 freezing Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 208000001034 Frostbite Diseases 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides a solar energy auxiliary air can water heater system, include: the solar water heater comprises a compressor, a water side heat exchanger, a first heat exchanger and a solar water heater, wherein one end of the first heat exchanger can be communicated with an air suction pipe of the compressor, the other end of the first heat exchanger can be communicated with the water side heat exchanger, the water side heat exchanger can be communicated with an exhaust pipe of the compressor, the water side heat exchanger and the first heat exchanger are communicated through a refrigerant pipeline, a first throttling device is further arranged between the first heat exchanger and the water side heat exchanger, and the solar water heater is communicated with the first heat exchanger through a communication pipeline and exchanges heat with the refrigerant pipeline in the first heat exchanger through the communication pipeline. According to the utility model discloses can effectively improve hot water making ability of heat pump and efficiency under the less strong condition of low temperature and solar light, satisfy people's hot water user demand, the serious problem of ability efficiency decay is expected to the air energy hot-water machine in winter low temperature environment down, reaches energy saving and emission reduction, continuous heating effect.
Description
Technical Field
The utility model relates to a heat pump technology field, concretely relates to solar energy auxiliary air can water heater system.
Background
The existing air energy water heater is widely applied to heating and hot water engineering in the north with high energy efficiency and no pollution. The air energy water heater mainly absorbs heat from air, but the environmental temperature is low in the north in winter, so that the energy efficiency of the capacity of the water heater is seriously reduced.
The solar water heater uses clean solar energy without electric energy, and is widely used. However, the air is frozen and damaged in the winter in the north or in the cloudy snow days, and the air can not be continuously heated, so the air is rarely used in winter. The existing structure for heating water in a water tank by using a solar water heater and a heat pump system together exists, but two schemes (the solar water heater and the heat pump system) of the structure are simply combined and respectively work independently to prepare hot water, and the solar water heater cannot effectively utilize solar energy to prepare hot water or efficiently utilize a heat pump to prepare hot water under the conditions of low temperature such as winter or extreme weather such as weak sunlight, and the hot water preparation capacity of the solar water heater is greatly reduced.
Because there is ability efficiency decay serious problem in the air energy heat pump water heater under the low temperature environment among the prior art, solar water heater evening or cloudy snow day gas in the north have freezing the frozen problem, can't heat in succession to and solar water heater and the simple scheme of combining the heating water tank of heat pump system prepare hot water ability weak under the low temperature and the less strong circumstances in sunshine, can't realize technical problem such as accurate timing control temperature, consequently the utility model discloses research design out a solar energy auxiliary air energy water heater system.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art solar water heater and the simple scheme that combines of heat pump system heating water tank and prepare the less strong defect of hot water ability under the less strong condition in low temperature and sunshine to an air energy water heater system of solar energy assistance is provided.
In order to solve the above problem, the utility model provides a solar energy auxiliary air can hot water machine system, it includes:
the solar water heater comprises a compressor, a water side heat exchanger, a first heat exchanger and a solar water heater, wherein one end of the first heat exchanger can be communicated with an air suction pipe of the compressor, the other end of the first heat exchanger can be communicated with the water side heat exchanger, the water side heat exchanger can be communicated with an exhaust pipe of the compressor, the water side heat exchanger and the first heat exchanger are communicated through a refrigerant pipeline, a first throttling device is further arranged between the first heat exchanger and the water side heat exchanger, and the solar water heater is communicated with the first heat exchanger through a communicating pipeline and exchanges heat with the refrigerant pipeline in the first heat exchanger.
Preferably, the solar water heater comprises a heat collecting pipe and a water tank, the heat collecting pipe can transfer heat to the water tank, and water in the water tank is communicated with the communicating pipeline.
Preferably, a pump is further disposed on the communication pipeline.
Preferably, the liquid flowing in the communication line includes water.
Preferably, the liquid flowing in the communication line further includes an antifreeze liquid.
Preferably, the heat exchanger further comprises a first branch, one end of the first branch is communicated to a pipeline between the first heat exchanger and the compressor, the other end of the first branch is communicated to a pipeline between the first throttling device and the water-side heat exchanger, and the first branch is further provided with a second heat exchanger and a second throttling device.
Preferably, the heat exchanger further comprises a four-way valve, and four ends of the four-way valve are respectively communicated to the exhaust pipe of the compressor, the air suction pipe of the compressor, the first branch and/or the first heat exchanger, and the water side heat exchanger.
Preferably, when the water tank is included, a first temperature sensor is arranged at the water tank and used for detecting the temperature of water in the water tank; and a second temperature sensor is arranged at the second heat exchanger and used for detecting the temperature of the refrigerant.
The utility model provides a pair of supplementary air of solar energy can water heater system has following beneficial effect:
the utility model discloses a set up the first heat exchanger that passes through the intercommunication pipeline with the solar water heater at the low pressure evaporation end of air energy heat pump system, can make the refrigerant flow through this first heat exchanger and evaporate the heat absorption and acquire the heat in the intercommunication pipeline in the solar energy system, evaporation heat absorption capacity is strong, the heat transfer effect is far higher than the hot water that the water in the solar energy system was heated water tank and was obtained alone, and solar energy system carries this part solar heat to the refrigerant pipeline of air energy circulation system in force, the refrigerant pipeline further transmits the heat to the heat exchanger of water side again, in order to prepare required hot water, the utility model discloses combine solar water heater system and air energy hot water system deeply, can effectively improve ability and the efficiency that the heat pump made hot water under low temperature and the weak condition of solar light, satisfy people's hot water user demand, the problem that the energy efficiency of the air energy water heater is seriously reduced in the low-temperature environment in winter is solved by effectively overcoming the defect that the hot water preparation efficiency is low under the conditions of low temperature and weak sunlight in the scheme of simply combining the solar water heater and the heat pump system to prepare the hot water and the defect that the hot water preparation efficiency is low by independently adopting the solar water heater and the air energy water heating system in the prior art, and the effects of energy conservation, emission reduction and continuous heat supply are achieved. The solar system module uses an antifreezing liquid medium and water, has a low freezing point, and can effectively solve the antifreezing problem in winter.
Drawings
Fig. 1 is a system diagram of the solar-assisted air-powered water heater system of the present invention.
The reference numerals are represented as:
1. a compressor; 2. a water side heat exchanger; 3. a first heat exchanger; 4. a solar water heater; 41. a heat collecting pipe; 42. a water tank; 51. a first throttling device; 52. a second throttling device; 6. a pump; 7. a second heat exchanger; 8. a four-way valve; 100. a communicating pipeline; 101. a first branch.
Detailed Description
As shown in fig. 1, the utility model provides a solar energy assisted air can hot water machine system, it includes:
the solar water heater comprises a compressor 1, a water side heat exchanger 2, a first heat exchanger 3 and a solar water heater 4, wherein one end of the first heat exchanger 3 can be communicated with an air suction pipe of the compressor 1, the other end of the first heat exchanger can be communicated with the water side heat exchanger 2, the water side heat exchanger 2 is communicated with an exhaust pipe of the compressor 1, the water side heat exchanger 2 and the first heat exchanger 3 are communicated through a refrigerant pipeline, a first throttling device 51 is further arranged between the first heat exchanger 3 and the water side heat exchanger 2, the solar water heater 4 is communicated with the first heat exchanger 3 through a communication pipeline 100, and the communication pipeline 100 in the first heat exchanger 3 exchanges heat with the refrigerant pipeline.
The utility model discloses a set up the first heat exchanger that passes through the intercommunication pipeline with the solar water heater at the low pressure evaporation end of air energy heat pump system, can make the refrigerant flow through this first heat exchanger and evaporate the heat absorption and acquire the heat in the intercommunication pipeline in the solar energy system, evaporation heat absorption capacity is strong, the heat transfer effect is far higher than the hot water that the water in the solar energy system was heated water tank and was obtained alone, and solar energy system carries this part solar heat to the refrigerant pipeline of air energy circulation system in force, the refrigerant pipeline further transmits the heat to the heat exchanger of water side again, in order to prepare required hot water, the utility model discloses combine solar water heater system and air energy hot water system deeply, can effectively improve ability and the efficiency that the heat pump made hot water under low temperature and the weak condition of solar light, satisfy people's hot water user demand, the problem that the energy efficiency of the air energy water heater is seriously reduced in the low-temperature environment in winter is solved by effectively overcoming the defect that the hot water preparation efficiency is low under the conditions of low temperature and weak sunlight in the scheme of simply combining the solar water heater and the heat pump system to prepare the hot water and the defect that the hot water preparation efficiency is low by independently adopting the solar water heater and the air energy water heating system in the prior art, and the effects of energy conservation, emission reduction and continuous heat supply are achieved.
The utility model discloses establish ties solar water heater (including water tank), water pump, fluorine heat exchanger (first heat exchanger 3) and constitute the module, connect parallelly connected in air ability hot water machine evaporimeter side after being connected it with electronic expansion valve. The heat converted from solar energy is supplemented to the low-temperature side of the air energy water heater by controlling the water pump so as to solve the problem that the energy efficiency of the air energy water heater is seriously attenuated in the low-temperature environment in winter, and the effects of energy conservation, emission reduction and continuous heat supply are achieved. The solar energy system module uses an antifreezing liquid medium, and the freezing point is low, so that the antifreezing problem in winter is solved.
Preferably, the solar water heater 4 comprises a heat collecting pipe 41 and a water tank 42, the heat collecting pipe 41 can transfer heat to the water tank 42, and water in the water tank 42 is communicated with the communication pipeline 100; the communication pipeline 100 is also provided with a pump 6. The utility model discloses a solar water heater absorbs solar energy through the thermal-collecting tube in order to be transformed into the heat, and water in the water tank is heated, and water in the intercommunication pipeline is promoted by the pump and flows in order to circulate, and by the heat transfer in first heat exchanger, the refrigerant heat-absorbing capacity absorbs the heat of intercommunication pipeline normal water stronger in first heat exchanger to make solar water heater's the ability reinforcing of absorbing solar energy, consequently and then improve the ability of heating of air energy water heater system.
Preferably, the liquid flowing in the communication pipe 100 includes water and also includes an anti-freezing liquid. The utility model discloses a solar energy system module uses frostproofing liquid medium + water, and the freezing point is low, can effectively solve the problem of preventing frostbite in winter.
Preferably, the heat exchanger further comprises a first branch 101, one end of the first branch 101 is communicated to a pipeline between the first heat exchanger 3 and the compressor 1, and the other end of the first branch 101 is communicated to a pipeline between the first throttling device 51 and the water-side heat exchanger 2, and the first branch 101 is further provided with a second heat exchanger 7 and a second throttling device 52. Through setting up first branch road and second heat exchanger and the second throttling arrangement that sets up on first branch road, can absorb the heat through the second heat exchanger from the air and heat in the water side heat exchanger and prepare hot water, be particularly useful for when the outdoor air temperature is higher or the water temperature is lower and can't absorb sufficient heat through solar energy department in the water tank, carry out the evaporation heat absorption as the evaporimeter through the second heat exchanger this moment, together with solar water heater's first heat exchanger, be applicable to different circumstances, both can use simultaneously also can the exclusive use, in order to according to the low system hot water ability that improves water side heat exchanger of different operating mode furthest.
Preferably, a four-way valve 8 is further included, and four ends of the four-way valve 8 are respectively communicated to the exhaust pipe of the compressor 1, the suction pipe of the compressor, the first branch 101 and/or the first heat exchanger 3, and the water-side heat exchanger 2. The working mode of the system can be switched through the four-way valve, and the purpose of intelligent control is achieved.
Preferably, when the water tank 42 is included, a first temperature sensor is provided at the water tank 42 for detecting the temperature of water in the water tank 42; and a second temperature sensor is arranged at the second heat exchanger 7 and used for detecting the temperature of the low-temperature refrigerant. This is the utility model discloses a further preferred structural style, the temperature in the water tank can effectively be detected through the first temperature sensor of water tank department, and the second temperature sensor of second heat exchanger department can effectively detect the temperature of low temperature refrigerant in the second heat exchanger, and the comparison through these two temperatures can judge effectively that the temperature is high or low in the real-time water tank, whether enough be used for heating the low temperature refrigerant in order to prepare the hot water in water side heat exchanger department to accomplish intelligent control according to operating condition's difference.
The solar module system comprises: the system comprises a solar water heater (with a water tank), a pump, a water-fluorine heat exchanger (a first heat exchanger 3), a water tank temperature sensing bulb, an anti-freezing liquid medium and the like;
the air energy water heater system comprises: a compressor, a four-way valve, a condenser, an electronic expansion valve, an evaporator, a vapor-liquid separator and the like;
the control method comprises the following steps: in winter, the solar energy and the antifreeze liquid in the solar energy system are utilized, when the difference value between the temperature of the water tank and the temperature of the low-temperature refrigerant is greater than a set value t0, the water pump is started, and the first throttling device 51 (preferably an electronic expansion valve) is started; when the tank temperature and the low temperature refrigerant temperature are equal, the first throttling means 51 (preferably an electronic expansion valve) is closed and the water pump is turned off.
The utility model discloses still provide a control method as any one of the preceding auxiliary air of solar energy can hot water machine system, when including water tank, second heat exchanger, first temperature sensor, second temperature sensor, first throttling arrangement 51, second throttling arrangement 52 and pump 6 simultaneously, control method includes:
a detection step of detecting a water temperature t1 in the water tank 42 by the first temperature sensor and a refrigerant temperature t2 in the second heat exchanger 7 by the second temperature sensor;
a judgment step of judging whether or not the water temperature t1 in the water tank 42 minus the refrigerant temperature t2 in the second heat exchanger 7 is greater than a set value t 0;
controlling the first throttling device 51 to be opened for throttling when t1-t2 is greater than or equal to t0, and simultaneously starting the pump 6 to control the unit to enter a solar auxiliary heating mode; and when t1-t2 is less than or equal to 0, controlling the first throttling device 51 to be closed, simultaneously closing the pump 6, and controlling the unit to enter an air energy heat pump heating mode.
The utility model discloses an above-mentioned control method can detect effectively and judge the ability of heating of temperature condition and solar water heater in the real-time water tank, explains its water tank heat accumulation enough when t1-t2 more than or equal to t0, can heat through the water of solar water heater's heat transfer department in the final heat exchanger to the water in the water side heat exchanger, improves its ability efficiency, heats hot water fast. And closing the water pump and the electronic expansion valve until the temperature of the solar system is equal to the low temperature of the heat pump. t2 of which t1 is not more than or equal to t 3578 indicates that the water tank has insufficient heat storage and cannot effectively exchange heat between low-temperature refrigerants, the first throttling device of the pipeline where the first heat exchanger is located is controlled to be closed, heat can be still absorbed from air through the second heat exchanger to prepare hot water, and the solar system is restarted when t1-t2 is more than t0 next time. The utility model discloses can accomplish and select different system hot water modes according to solar water heater's heat accumulation, can be applicable to the operating mode of multiple difference, for example solar energy heat accumulation is not enough to close first heat exchanger place pipeline, the sufficient condition of solar illumination opens first heat exchanger place pipeline. the t0 is reasonably set, preferably in the range of 15-20 ℃, if the temperature is too low, the heat storage of the water tank cannot meet the requirement of heat exchange for a certain time, the water pump is started and stopped frequently, and if the temperature is too high, the heat storage time of the water tank is longer, so that the use comfort of a user is caused.
Preferably, the controlling step is further used for controlling the second throttling device 52 to be opened for throttling when t1-t2 is greater than or equal to t 0; and is also used for controlling the second throttling device 52 to be opened for throttling when t1 is less than or equal to t 2. The utility model discloses still through when t1-t2 more than or equal to t0, control second throttling arrangement 52 opens and throttle for solar water heater heating capacity can also carry out supplementary hot water of making through the second heat exchanger from the heat absorption heat of air when enough (solar energy system heat accumulation is enough); when t1 is not less than t2, the second throttling device 52 is controlled to be opened to throttle, so that when the heating capacity of the solar water heater is insufficient (solar heat storage is insufficient), the heat can be absorbed from the air through the second heat exchanger to mainly prepare hot water.
Preferably, when a four-way valve is also included: and the control step is also used for controlling the four-way valve to switch to enable the water side heat exchanger 2 to be communicated with the exhaust pipe of the compressor 1 when the water side heat exchanger needs to prepare hot water. This is the utility model discloses a further preferred control mode can make the water side heat exchanger can prepare hot water through first heat exchanger and/or through second heat exchanger department heat absorption when needing to prepare hot water through the switching of cross valve.
The solar module system comprises: solar water heater (with water tank), pump, water-fluorine heat exchanger, water tank temperature sensing bulb, antifreezing liquid medium, etc
The air energy water heater system comprises: compressor, four-way valve, condenser, electronic expansion valve, evaporator, vapor-liquid separator and the like
The control method comprises the following steps: in winter, the solar energy and the antifreeze liquid in the solar energy system are utilized, when the difference value between the temperature of the water tank and the temperature of the low-temperature refrigerant is greater than a set value t0, the water pump is started, and the first throttling device 51 (preferably an electronic expansion valve) is started; when the tank temperature and the low temperature refrigerant temperature are equal, the first throttling means 51 (preferably an electronic expansion valve) is closed and the water pump is turned off.
The working principle is as follows:
and (3) heating mode of a normal air energy heat pump water heater: the first throttle 51 is closed and the water pump is turned off. The high-temperature and high-pressure refrigerant discharged from the compressor exchanges heat with water in the condenser through the four-way valve, and then passes through the first throttling device 51, and the low-temperature and low-pressure refrigerant exchanges heat with air in the evaporator to absorb heat. Returning to the compressor suction through a four-way valve and a vapor-liquid separator.
Solar assist system on mode: the water pump is turned on and the first throttle device 51 is turned on. The high-temperature and high-pressure refrigerant discharged by the compressor exchanges heat with water in the condenser through the four-way valve and is divided into two paths A and B, wherein the path A is throttled in the water-fluorine heat exchanger (the first heat exchanger 3) through the first throttling device 51 to absorb heat in the antifreeze solution, and the path B is throttled in the evaporator through the second throttling device 52 to absorb heat in air, and the converged heat returns to the compressor through the four-way valve and the gas-liquid separator to be sucked.
After the solar auxiliary system is started, the pressure and the temperature of the converged refrigerant are obviously improved, and the capacity and the energy efficiency of the air energy water heater can be greatly improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a solar energy auxiliary air can hot water machine system which characterized in that: the method comprises the following steps:
a compressor (1), a water side heat exchanger (2), a first heat exchanger (3) and a solar water heater (4), one end of the first heat exchanger (3) can be communicated with the air suction pipe of the compressor (1), the other end can be communicated with the water side heat exchanger (2), the water side heat exchanger (2) can be communicated with an exhaust pipe of the compressor (1), the compressor (1), the water side heat exchanger (2) and the first heat exchanger (3) are communicated through a refrigerant pipeline, a first throttling device (51) is also arranged between the first heat exchanger (3) and the water side heat exchanger (2), the solar water heater (4) is communicated with the first heat exchanger (3) through a communicating pipeline (100), and the communicating pipeline (100) exchanges heat with a refrigerant pipeline in the first heat exchanger (3).
2. The solar assisted air-powered water heater system of claim 1, wherein:
the solar water heater (4) comprises a heat collecting pipe (41) and a water tank (42), the heat collecting pipe (41) can transfer heat to the water tank (42), and water in the water tank (42) is communicated with the communicating pipeline (100).
3. The solar assisted air-powered water heater system of claim 2, wherein:
the communicating pipeline (100) is also provided with a pump (6).
4. The solar assisted air-powered water heater system of claim 1, wherein:
the liquid flowing in the communication line (100) comprises water.
5. The solar assisted air-powered water heater system of claim 4, wherein:
the liquid flowing in the communication line (100) also comprises an antifreeze liquid.
6. The solar assisted air-powered water heater system according to any one of claims 1 to 5, wherein:
the heat exchanger further comprises a first branch (101), one end of the first branch (101) is communicated to a pipeline between the first heat exchanger (3) and the compressor (1), the other end of the first branch is communicated to a pipeline between the first throttling device (51) and the water side heat exchanger (2), and a second heat exchanger (7) and a second throttling device (52) are further arranged on the first branch (101).
7. The solar assisted air-powered water heater system of claim 6, wherein:
the heat exchanger is characterized by further comprising a four-way valve (8), wherein four ends of the four-way valve (8) are respectively communicated to an exhaust pipe of the compressor (1), an air suction pipe of the compressor, the first branch (101) and/or the first heat exchanger (3) and the water side heat exchanger (2).
8. The solar assisted air-powered water heater system of claim 6, wherein:
when the water tank (42) is included, a first temperature sensor is arranged at the water tank (42) and used for detecting the temperature of water in the water tank (42); and a second temperature sensor is arranged at the second heat exchanger (7) and used for detecting the temperature of the refrigerant.
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| CN202020830457.6U CN212409070U (en) | 2020-05-18 | 2020-05-18 | Solar-assisted air energy water heater system |
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| CN202020830457.6U CN212409070U (en) | 2020-05-18 | 2020-05-18 | Solar-assisted air energy water heater system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550920A (en) * | 2020-05-18 | 2020-08-18 | 珠海格力电器股份有限公司 | Solar-assisted air energy water heater system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550920A (en) * | 2020-05-18 | 2020-08-18 | 珠海格力电器股份有限公司 | Solar-assisted air energy water heater system and control method thereof |
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