CN212537996U - Solar energy and air source heat pump coupling system - Google Patents
Solar energy and air source heat pump coupling system Download PDFInfo
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- CN212537996U CN212537996U CN202020745712.7U CN202020745712U CN212537996U CN 212537996 U CN212537996 U CN 212537996U CN 202020745712 U CN202020745712 U CN 202020745712U CN 212537996 U CN212537996 U CN 212537996U
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- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000003507 refrigerant Substances 0.000 claims abstract description 58
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 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 invention discloses a solar energy and air source heat pump coupling system, comprising: a solar collector having a first water flow passage; a first heat exchanger having a second water flow passage and a second refrigerant flow passage; a second heat exchanger; the air outlet of the compressor is sequentially connected with the second refrigerant flow channel and the second heat exchanger, and the outlet of the second heat exchanger is connected with the air return port of the compressor; a throttle valve disposed between the first heat exchanger and the second heat exchanger; a water tank having a circulating water outlet and a circulating water inlet. The utility model discloses a solar energy and air source heat pump coupled system can select to utilize air energy heat transfer and/or solar energy heat transfer according to the solar light condition, and mode system hot water through the circulating water is favorable to shortening the refrigerant circulation pipeline, and when opening the heat pump, circulates to the cold water of first heat exchanger and takes away the energy fast, improves heat pump system's energy efficiency ratio.
Description
Technical Field
The invention belongs to the technical field of heating, and particularly relates to a solar energy and air source heat pump coupling system.
Background
At present, with the continuous improvement of living standard, the demand of people on hot water is increased, solar energy is inexhaustible clean energy, and the solar energy is used for supplementing conventional energy to drive an air conditioner and a heating system, thereby having very important significance for energy conservation and environmental protection.
The existing solar energy and air source heat pump coupling system shares one water storage tank, and in consideration of the requirement of isolation of domestic hot water and a heat exchange medium, a heat storage and exchange device adopted by the system generally adopts a double-heat exchanger closed water tank structure and is used for coupling two or more heat sources, storing heat, exchanging heat through a heat exchanger and supplying hot water to a heating terminal or a hot water terminal. The heat exchange efficiency of this kind of mode is low.
Disclosure of Invention
The invention provides a solar energy and air source heat pump coupling system aiming at the technical problem of low coupling heat exchange efficiency of solar energy and air source heat pumps in the prior art, and can solve the problem.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
a solar and air source heat pump coupling system, comprising:
a solar collector having a first water flow passage;
a first heat exchanger having a second water flow passage and a second refrigerant flow passage;
a second heat exchanger;
the air outlet of the compressor is sequentially connected with the second refrigerant flow channel and the second heat exchanger, and the outlet of the second heat exchanger is connected with the air return port of the compressor;
a throttle valve disposed between the first heat exchanger and the second heat exchanger;
the water tank is provided with a circulating water outlet and a circulating water inlet, one of the circulating water outlet and the circulating water inlet is connected with the first water flow channel in series to form a first water circulation channel, the other of the circulating water outlet and the circulating water inlet is connected with the second water flow channel in series to form a second water circulation channel, a first valve is arranged in the first water circulation channel, and a second valve is arranged in the second water circulation channel.
Furthermore, the solar heat collector is also provided with a first refrigerant flow channel, one end of the first refrigerant flow channel is connected with the return air port of the compressor, and the other end of the first refrigerant flow channel is connected with the exhaust port of the compressor or connected between the throttle valve and the second heat exchanger.
Further, the first refrigerant flow passage is a solar evaporator, and a third valve is provided in a refrigerant passage in which the first refrigerant flow passage is located.
Further, the third valve has two valves, one of which is connected to an inlet of the first refrigerant flow passage and the other of which is connected to an outlet of the first refrigerant flow passage.
Further, a fourth valve is arranged in the refrigerant passage where the second heat exchanger is located.
Further, the fourth valve has two, one of which is connected to the inlet of the second heat exchanger, and the other of which is connected to the outlet of the second heat exchanger.
Further, the first valve has two valves, one of which is connected to an inlet of the first water flow passage and the other of which is connected to an outlet of the first water flow passage.
Further, the second valve has two valves, one of which is connected to an inlet of the second water flow passage and the other of which is connected to an outlet of the second water flow passage.
Furthermore, a circulating water outlet of the water tank is connected with a water pump.
Further, the first heat exchanger is a double-pipe heat exchanger.
Compared with the prior art, the invention has the advantages and positive effects that: the utility model discloses a solar energy and air source heat pump coupled system, through setting up two way hydrologic cycle passageways, wherein be used for all the way the hydrologic cycle in the water tank to heat transfer among the solar collector, be used for carrying out the air energy heat transfer with the hydrologic cycle in the water tank to first heat exchanger all the way in addition, can select to utilize air energy heat transfer and/or solar energy heat transfer according to the solar light condition, mode system hot water through the circulating water, be favorable to shortening the refrigerant circulation pipeline, and when opening the heat pump, the cold water that circulates to first heat exchanger takes away the energy fast, improve heat pump system's energy efficiency ratio.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 the present invention provides an embodiment system schematic diagram of a solar energy and air source heat pump coupling system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example one
The embodiment provides a solar energy and air source heat pump coupling system, as shown in fig. 1, which includes a solar heat collector 11, a first heat exchanger 12, a second heat exchanger 13, a compressor 14, a throttle valve 15, and a water tank 16, wherein the solar heat collector 11 has a first water flow passage (not shown in the figure), and water flowing through the first water flow passage can absorb heat in the solar heat collector 11 to make hot water; the first heat exchanger 12 is internally provided with a second water flow channel and a second refrigerant flow channel, in the embodiment, the first heat exchanger 12 functions as a condenser, and water flowing through the second water flow channel can absorb heat in the second refrigerant flow channel to make hot water; the second heat exchanger 13 functions as an evaporator, and the refrigerant flowing through the second heat exchanger 13 exchanges heat with air to absorb energy in the air for evaporation. The exhaust port of the compressor 14 is connected with the second refrigerant flow channel of the first heat exchanger 12 and the second heat exchanger 13 in sequence, and the outlet of the second heat exchanger 13 is connected with the return air port of the compressor 14; the compressor 14 is used for driving a refrigerant to circularly exchange heat between the first heat exchanger 12 and the second heat exchanger 13, so that energy transfer is realized.
The first heat exchanger 12 may be implemented, but is not limited to, using a double pipe heat exchanger.
The throttle valve 15 is arranged between the first heat exchanger 12 and the second heat exchanger 13, and the low-temperature high-pressure refrigerant coming out of the first heat exchanger 12 is throttled and depressurized and then enters the second heat exchanger 13 to evaporate and absorb heat.
The water tank 16 is provided with a circulating water outlet 161 and a circulating water inlet 162, one path of the circulating water outlet 161 and the circulating water inlet 162 is connected with a first water flow channel in the solar heat collector 11 in series to form a first water circulation channel 17, the other path of the circulating water outlet 161 and the circulating water inlet 162 is connected with a second water flow channel of the first heat exchanger 12 in series to form a second water circulation channel 18, a first valve SV1-1 is arranged in the first water circulation channel 17, and the on-off state of the first valve SV1-1 is used for controlling the on-off state of the first water circulation channel 17. The second water circulation passage 18 is provided with a second valve SV2-1, and the on-off state of the second valve SV2-1 is used for controlling the on-off state of the second water circulation passage 18. The first valve SV1-1 and the second valve SV2-1 are preferably realized by electric control valves, and the on-off states of the first valve SV1-1 and the second valve SV2-1 are controlled by a control module.
The circulating water outlet 161 or the circulating water inlet 162 of the water tank 16 is connected with a water pump 23 for driving water flow to circulate between the water circulation channel and the water tank 16, and the circulating water outlet 161 of the water pump 23 shown in fig. 1 is taken as an example in the embodiment.
When the first valve SV1-1 is opened and the second valve SV2-1 is closed, water in the water tank 16 is driven by the water pump 23 to circulate to the solar heat collector 11 to absorb heat and return to the water tank 16 after heating, the heat pump system is shut down, namely the compressor 14 is closed, at the moment, solar energy is completely utilized to produce hot water, and the solar water heater is suitable for supplying domestic hot water or heating hot water when sunlight is well illuminated.
When the second valve SV2-1 is opened and the first valve SV1-1 is closed, water in the water tank 16 circulates to the solar heat collector 11 to absorb heat and returns to the water tank 16 after being heated, the heat pump system needs to be started, namely the compressor 14 is started, at the moment, the air energy heat pump system is completely utilized to produce hot water, and the solar water heater is suitable for producing hot water for life or heating at night when the sunlight is not well illuminated.
It will be appreciated that the present heat pump system should also be provided with illumination detection means for detecting the intensity of solar radiation, a temperature sensor for detecting the ambient temperature, a temperature sensor for detecting the temperature of the water in the water tank, etc.
When the second valve SV2-1 and the first valve SV1-1 are opened simultaneously, one path of water in the water tank 16 circulates to the solar heat collector 11 to absorb heat, the other path of water circulates to the first heat exchanger 12 to absorb heat, and a heat pump system needs to be opened, so that the solar water heater is suitable for solar energy with certain illumination, but when the requirement for heating water cannot be met, the heat pump system is opened simultaneously to heat. The solar energy can be fully utilized, the burden of a heat pump system can be reduced, the energy consumption is saved, and the scheme is suitable for heating and hot water making and has the advantages of large hot water demand and stable hot water making requirement.
In order to deeply couple the solar heat pump system with the air heat pump system and fully utilize the advantages of the two energy sources, in the embodiment, it is preferable that the solar heat collector 11 further includes a first refrigerant flow channel (not shown), one end of the first refrigerant flow channel is connected to the air return port of the compressor 14, and the other end of the first refrigerant flow channel is connected to the exhaust port of the compressor 14, and at this time, a throttle valve is generally required to be further disposed between the first refrigerant flow channel and the compressor 14 for throttling and depressurizing. Alternatively, as shown in fig. 1, in the present embodiment, one end of the first refrigerant flow path is connected to the return port of the compressor 14, and the other end is connected between the throttle valve 15 and the second heat exchanger 13. That is, the refrigerant coming out of the first heat exchanger 12 is first throttled by the throttle 15, i.e. the two-way common throttle 15, whether it enters the second heat exchanger 13 or the first refrigerant flow path of the solar collector 11.
The first refrigerant flow channel is a solar evaporator, and the refrigerant flowing through the first refrigerant flow channel can absorb heat in the solar heat collector 11 for evaporation, and then enters the compressor.
In order to gate a proper refrigerant circulation channel according to the air temperature and the solar radiation intensity and achieve the maximum utilization of energy, in the embodiment, a third valve SV3-1 is preferably arranged in the refrigerant passage where the first refrigerant flow channel is located. The third valve SV3-1 is used to control whether the refrigerant passage where the first refrigerant flow passage is located is conducted, that is, whether the refrigerant can enter the solar heat collector 11 for heat exchange.
A fourth valve SV4-1 is provided in the refrigerant passage where the second heat exchanger 13 is located. The fourth valve SV4-1 is used to control whether the refrigerant passage where the second heat exchanger 13 is located is open, that is, whether the refrigerant can enter the second heat exchanger 13 for heat exchange.
When the solar radiation is good and the environment temperature is low, the evaporation efficiency of the solar evaporator is higher than that of air energy, at the moment, the third valve SV3-1 can be opened, and the fourth valve SV4-1 can be closed, so that the heating function of the solar heat pump is realized.
When solar radiation is poor and the environment temperature is high, the evaporation efficiency of air energy is higher than that of solar energy, at the moment, the fourth valve SV4-1 can be opened, and the third valve SV3-1 can be closed, so that the heating function of the air energy heat pump is realized.
When the solar radiation is equivalent to the ambient temperature, the fourth valve SV4-1 and the third valve SV3-1 can be opened simultaneously, one path of the refrigerant from the first heat exchanger 12 enters the solar heat collector for evaporation, and the other path of the refrigerant enters the second heat exchanger 13 for evaporation, so that the heating function of the solar energy and air energy coupling heat pump is realized. The solar energy and the air energy are fully utilized.
To ensure reliable opening or closing of the refrigerant circuit in which the first refrigerant flow path is located, the third valve has two, respectively, a third valve SV3-1 and a third valve SV3-2, wherein the third valve SV3-2 is connected to the inlet of the first refrigerant flow path and the third valve SV3-1 is connected to the outlet of the first refrigerant flow path. Generally, the on-off states of the two third valves are synchronized and are controlled by the control module to be opened or closed simultaneously.
Similarly, to ensure that the refrigerant path in which the second heat exchanger 13 is located can be reliably opened or closed, it is preferable that the fourth valve has two, a fourth valve SV4-1 and a fourth valve SV4-2, wherein the fourth valve SV4-2 is connected to the inlet of the second heat exchanger 13 and the fourth valve SV4-1 is connected to the outlet of the second heat exchanger 13. In general, the on-off states of the two fourth valves are synchronized and are controlled by the control module to be opened or closed simultaneously.
Similarly, to ensure that the first water flow passage can be reliably opened or closed, it is preferable that the first valve has two, first valve SV1-1 and first valve SV1-2, wherein the first valve SV1-2 is connected to the inlet of the first water flow passage and the first valve SV1-1 is connected to the outlet of the first water flow passage. And the on-off states of the two first valves are synchronized.
Similarly, to ensure that the second water flow passage can be reliably opened or closed, the second valve has two valves, second valve SV2-1 and second valve SV2-2, wherein the second valve SV2-2 is connected to the inlet of the second water flow passage and the second valve SV2-1 is connected to the outlet of the second water flow passage. And the on-off states of the two second valves are synchronized.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A solar energy and air source heat pump coupling system, comprising:
a solar collector having a first water flow passage;
a first heat exchanger having a second water flow passage and a second refrigerant flow passage;
a second heat exchanger;
the air outlet of the compressor is sequentially connected with the second refrigerant flow channel and the second heat exchanger, and the outlet of the second heat exchanger is connected with the air return port of the compressor;
a throttle valve disposed between the first heat exchanger and the second heat exchanger;
the water tank is provided with a circulating water outlet and a circulating water inlet, one of the circulating water outlet and the circulating water inlet is connected with the first water flow channel in series to form a first water circulation channel, the other of the circulating water outlet and the circulating water inlet is connected with the second water flow channel in series to form a second water circulation channel, a first valve is arranged in the first water circulation channel, and a second valve is arranged in the second water circulation channel.
2. The solar energy and air source heat pump coupling system of claim 1, wherein the solar heat collector further comprises a first refrigerant flow channel, one end of the first refrigerant flow channel is connected with a return air port of the compressor, and the other end of the first refrigerant flow channel is connected with an exhaust port of the compressor or connected between the throttle valve and the second heat exchanger.
3. The solar and air source heat pump coupling system of claim 2, wherein the first refrigerant flow passage is a solar evaporator, and a third valve is disposed in a refrigerant passage of the first refrigerant flow passage.
4. The solar and air source heat pump coupling system of claim 3, wherein the third valve has two, one connected to the inlet of the first refrigerant flow passage and the other connected to the outlet of the first refrigerant flow passage.
5. The solar energy and air source heat pump coupling system as claimed in claim 2, wherein a fourth valve is disposed in the refrigerant path of the second heat exchanger.
6. The solar and air source heat pump coupling system of claim 5, wherein the fourth valve has two, one of which is connected to the inlet of the second heat exchanger and the other of which is connected to the outlet of the second heat exchanger.
7. The solar and air source heat pump coupling system of claim 1, wherein the first valve has two, one of which is connected to the inlet of the first water flow passage and the other of which is connected to the outlet of the first water flow passage.
8. The solar and air source heat pump coupling system of claim 1, wherein the second valve has two, one of which is connected to the inlet of the second water flow passage and the other of which is connected to the outlet of the second water flow passage.
9. The solar and air source heat pump coupling system of any one of claims 1-8, wherein a water pump is connected to a circulating water outlet of the water tank.
10. The solar and air source heat pump coupling system of any one of claims 1-8, wherein the first heat exchanger is a double pipe heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020745712.7U CN212537996U (en) | 2020-05-08 | 2020-05-08 | Solar energy and air source heat pump coupling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020745712.7U CN212537996U (en) | 2020-05-08 | 2020-05-08 | Solar energy and air source heat pump coupling system |
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| Publication Number | Publication Date |
|---|---|
| CN212537996U true CN212537996U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020745712.7U Active CN212537996U (en) | 2020-05-08 | 2020-05-08 | Solar energy and air source heat pump coupling system |
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|---|---|
| CN (1) | CN212537996U (en) |
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- 2020-05-08 CN CN202020745712.7U patent/CN212537996U/en active Active
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