CN210374162U - Photovoltaic heat collection generator with storage battery and solar jet refrigeration and heating system - Google Patents
Photovoltaic heat collection generator with storage battery and solar jet refrigeration and heating system Download PDFInfo
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- CN210374162U CN210374162U CN201921218656.5U CN201921218656U CN210374162U CN 210374162 U CN210374162 U CN 210374162U CN 201921218656 U CN201921218656 U CN 201921218656U CN 210374162 U CN210374162 U CN 210374162U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 238000005057 refrigeration Methods 0.000 title abstract description 41
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 16
- 239000010409 thin film Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 27
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition 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
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02E10/60—Thermal-PV hybrids
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Abstract
The utility model relates to a warm refrigeration technology field that leads to, specificly relate to a take photovoltaic thermal-arrest generator and solar energy of battery to spray refrigeration heating system, with photovoltaic thermal-arrest board, the generator cylinder body, heat transfer assembly, the battery is integrated to form photovoltaic thermal-arrest generator together, make its compact structure, easy productization, solve the tradition and spray refrigeration in-process working medium and reveal or the low temperature freezes the scheduling problem, and photovoltaic thermal-arrest board can absorb solar energy and convert it into the electric energy and heat the heat transfer assembly who covers for working medium pump power supply and the light heat energy of absorption sunlight, comprehensive utilization photovoltaic and light heat energy of solar energy, it is more energy-conserving, and be equipped with the battery, can store the electric energy of photovoltaic thermal-arrest board conversion, when solving night and overcast and rainy weather, the electric energy drive problem of working medium pump realizes zero-power consumption, make multi-functional generator alternative intercommunication through setting up the change-over switch valve simultaneously the sprayer or the evaporimeter refrigerates or the So as to supply heat.
Description
Technical Field
The utility model relates to a warm refrigeration technology field that leads to, specificly relate to a take photovoltaic heat collection generator and solar energy of battery to spray refrigeration heating system.
Background
The power consumption of the air-conditioning system occupies a large proportion in the national electricity consumption, how to reduce the power consumption of the air-conditioning system and improve the energy efficiency of the air-conditioning system is always the direction of the effort in the industry, the high power consumption of the air-conditioning system is mainly caused by the large power of a compressor of the air-conditioning system, and the solar jet refrigeration system has high energy efficiency ratio, is environment-friendly and sanitary because of no compressor, and is widely concerned.
Patent No. CN1995869A discloses a solar energy injection and variable speed compression integrated refrigerating device, which can make a compressor and an ejector work coordinately according to solar radiation change and realize the stable transition of enhanced injection refrigeration and compression refrigeration, thereby realizing the purpose of all-weather high-efficiency refrigeration by one set of device, but the system has complex structure, high power consumption of the compressor, high cost and poor economy.
Patent No. CN103398498A discloses a solar jet refrigeration and heat pump integrated system and a control method, the system integrates a solar jet refrigeration system on the basis of conventional vapor compression to improve the energy utilization efficiency, but the system is very complex, the cost is higher, and the control difficulty is large;
patent No. CN105423613A discloses a mechanically supercharged solar jet refrigeration system and method, in which an expander and a compressor are added to improve the energy efficiency of the system, the system is complex, the cost of the expander and the compressor is high, and heating operation cannot be realized.
In addition, the above patents only utilize the light heat energy of sunlight, do not utilize the photovoltaic energy of sunlight, and solar collector and refrigerating system generator are separately arranged, there is a heat exchange process in the middle, the working medium easily leaks or freezes scheduling problem at low temperature, and the system is bulky, with higher costs, simultaneously, the water pump needs to consume electric energy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technical problem, provide a take photovoltaic heat collection generator and solar energy of battery to spray refrigeration heating system.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a take photovoltaic thermal-arrest generator of battery, includes photovoltaic thermal-arrest board, generator cylinder body, heat transfer assembly, battery, heat transfer assembly sets up on the generator cylinder body, photovoltaic thermal-arrest board covers and is used for absorbing the heat and heats the heat transfer assembly who covers on the heat transfer assembly, the battery with photovoltaic thermal-arrest board is connected and is used for the storage the electric energy of photovoltaic thermal-arrest board conversion.
Further, the photovoltaic heat collecting plate is any one of a photovoltaic plate and a photovoltaic thin film battery.
Further, the heat transfer component is any one of a heat pipe and a sleeve heat exchanger.
Further, still include the electrical heating subassembly of auxiliary heating, the electrical heating subassembly sets up inside the generator cylinder body, the battery is connected with the electrical heating subassembly and is used for supplying power to the electrical heating subassembly.
The utility model provides a solar energy sprays refrigeration heating system, includes sprayer, condenser, evaporimeter, still includes change over switch valve, the above-mentioned photovoltaic heat collection generator who takes the battery, the photovoltaic heat collection generator one end of taking the battery is passed through change over switch valve alternative intercommunication the sprayer or the evaporimeter refrigerates or heats, the other end with the condenser the evaporimeter is connected, the sprayer with the condenser is connected.
Further, the change-over switch valve includes a four-way valve, the ejector includes a main path and a branch path, and the four-way valve is respectively connected with the photovoltaic heat collection generator, the evaporator, and the main path and the branch path of the ejector.
The photovoltaic heat collection device is characterized by further comprising a working medium pump, wherein the working medium pump is connected with the photovoltaic heat collection generator and used for conveying a circulating working medium to the heat transfer assembly, and the storage battery is connected with the working medium pump and used for supplying power to the working medium pump.
Furthermore, the photovoltaic heat collection generator sequentially forms a first circulation loop with the four-way valve, the ejector main circuit, the condenser and the working medium pump, the evaporator sequentially forms a second circulation loop with the four-way valve, the ejector branch circuit and the condenser, the photovoltaic heat collection generator sequentially forms a third circulation loop with the four-way valve, the evaporator and the working medium pump, and a throttle valve is arranged between the condenser and the evaporator.
Further, still include first check valve, second check valve, first check valve sets up between the condenser with the choke valve, the second check valve sets up between first check valve with the evaporimeter, the second check valve with the choke valve parallel connection.
Furthermore, heat exchange devices are arranged on the evaporator and the condenser, and the heat exchange devices are any one of finned tube heat exchangers, microchannel heat exchange and microscale heat exchangers.
From the above description of the present invention, compared with the prior art, the photovoltaic heat collecting generator with storage battery and the solar jet refrigeration heating system provided by the present invention integrates the photovoltaic heat collecting plate, the generator cylinder body, the heat transfer component and the storage battery together to form the photovoltaic heat collecting generator, so that the structure is compact, the product is easy, the problems of working medium leakage or low temperature freezing in the middle heat exchange process of the traditional jet refrigeration are solved, and the photovoltaic heat collecting plate can absorb solar energy and convert the solar energy into electric energy to supply power for the working medium pump and absorb the light heat energy of sunlight to heat the covered heat transfer component, the photovoltaic energy and the light heat energy of the solar energy are comprehensively utilized, the energy is more energy-saving, the storage battery is provided, the electric energy converted by the photovoltaic heat collecting plate can be stored, the electric energy driving problem of the working medium pump at night and in rainy days is solved, and zero power consumption is realized, meanwhile, in the solar injection refrigeration and heating system, a multifunctional generator is selected to be communicated with the ejector or the evaporator for refrigeration or heating through the arrangement of the change-over switch valve, so that the switching of the injection refrigeration cycle and the refrigerant working medium cycle refrigeration and heating modes is realized, the problem that the traditional injection refrigeration machine type can only refrigerate and can not heat is solved, the heating and refrigeration efficiency is greatly improved, and the problems of large volume, high cost and complex system of an integrated system are solved.
Drawings
Fig. 1 is a schematic structural view of a photovoltaic heat collecting generator with a storage battery according to the present invention;
FIG. 2 is a schematic view of the solar jet cooling and heating system according to the present invention;
FIG. 3 is a schematic view of the radiant cooling mode of the solar jet cooling and heating system of the present invention;
fig. 4 is a schematic diagram of the refrigerant cycle cooling or heating mode of the solar injection cooling and heating system of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, a photovoltaic heat collecting generator with a secondary battery includes a photovoltaic heat collecting panel 21, a generator cylinder 22, a heat transfer assembly 23, a secondary battery 24, an electric heating assembly 25 for auxiliary heating, the heat transfer assembly 23 is disposed on the generator cylinder 22, the photovoltaic heat collecting plate 21 is covered on the heat transfer assembly 23 for absorbing heat to heat the covered heat transfer assembly 23, the heat of the heat transfer assembly 23 is transferred to the inside of the generator cylinder 22, the working medium inside the generator cylinder 22 is heated, the storage battery 24 is connected with the photovoltaic heat collecting plate 21 for storing the electric energy converted by the photovoltaic heat collecting plate 21, the electric heating assembly 25 is arranged inside the generator cylinder 22, the storage battery 24 is connected with the electric heating assembly 25 for supplying power to the electric heating assembly 25, the electrical heating assembly 25 is used to further heat the working fluid inside the generator cylinder 22. The photovoltaic heat collecting plate 21 is any one of a photovoltaic plate and a photovoltaic thin film battery, and the photovoltaic plate is preferred in the present embodiment. The heat transfer component 23 is any one of a heat pipe and a double pipe heat exchanger, and the heat pipe is preferred in the embodiment.
The photovoltaic heat collection generator with the storage battery integrates the photovoltaic heat collection plate 21, the generator cylinder body 22, the heat transfer component 23, the storage battery 24 and the auxiliary heating electric heating component 25 to form a whole, so that the structure is compact, the product is easy, the system volume is reduced, the cost is reduced, the photovoltaic and photothermal energy of solar energy is comprehensively utilized, the solar energy utilization rate is improved, an intermediate heat exchange process is not needed, the problems of working medium leakage or low-temperature freezing and the like are avoided, the heat on the photovoltaic heat collection plate 21 can be taken away by the heat transfer component 23, the problem of reduction of the generating efficiency caused by overhigh temperature of the photovoltaic heat collection plate 21 is avoided, the storage battery 24 is arranged, the electric energy converted by the photovoltaic heat collection plate 21 is stored, the problem of electric energy driving of the working medium pump 1 in night and rainy days is solved, and zero power consumption is realized.
Referring to fig. 2-4, the invention also provides a solar jet refrigeration and heating system, which comprises an ejector 4, a condenser 5, an evaporator 7, a change-over switch valve 3, the photovoltaic heat collection generator 2 with a storage battery, a working medium pump 1, a first check valve 6 and a second check valve 9, wherein one end of the photovoltaic heat collection generator 2 with a storage battery is selected to be communicated with the ejector 4 or the evaporator 7 for refrigeration or heating through the change-over switch valve 3, the other end of the photovoltaic heat collection generator is connected with the condenser 5 and the evaporator 7, the ejector 4 is connected with the condenser 5, so that a jet refrigeration system and a non-jet refrigeration system are integrated in the same system, the refrigeration and heating efficiency is greatly improved, the problems of large volume, high cost, complex system and the like of the integrated system are solved, the working medium pump 1 is connected with the photovoltaic heat collection generator 2 for conveying a circulating working medium to a heat transfer component 23, the storage battery 24 is connected with the working medium pump 1 and used for supplying power to the working medium pump 1 at night and in rainy days, and the energy consumption problem of the working medium pump 1 is solved. When sunlight is sufficient in the daytime, the working medium pump 1 is directly powered by the electric energy converted by the photovoltaic heat collecting plate 21, and the redundant electric quantity is stored in the storage battery 24.
The switching valve 3 includes a four-way valve, and the ejector 4 includes a main path 41 and a branch path 42, which are connected to the photovoltaic heat collector generator 2, the evaporator 7, and the main path 41 and the branch path 42 of the ejector 4, respectively. The four-way valve can enable the photovoltaic heat collecting generator 2 to be communicated with the ejector 4 for refrigeration, or enable the photovoltaic heat collecting generator 2 to be communicated with the evaporator 7 for refrigeration or heating, so that switching between an injection refrigeration system and a non-injection refrigeration system is realized, a compressor is not needed, the problem that the traditional injection refrigeration machine type can only refrigerate but can not heat is solved, and the problems of large size, high cost, complex system and the like of an integrated system are solved.
The photovoltaic heat collection generator 2 sequentially forms a first circulation loop with the four-way valve, the ejector 4 main path 41, the condenser 5 and the working medium pump 1, the evaporator 7 sequentially forms a second circulation loop with the four-way valve, the ejector 4 branch 42 and the condenser 5, the photovoltaic heat collection generator 2 sequentially forms a third circulation loop with the four-way valve, the evaporator 7 and the working medium pump 1, and a throttle valve 8 is arranged between the condenser 5 and the evaporator 7. The first check valve 6 is disposed between the condenser 5 and the throttle valve 8, the second check valve 9 is disposed between the first check valve 6 and the evaporator 7, and the second check valve 9 is connected in parallel with the throttle valve 8.
The evaporator 7 and the condenser 5 are provided with heat exchange devices, and the heat exchange devices are any one of finned tube heat exchangers, microchannel heat exchange and microscale heat exchangers. The finned tube heat exchanger is preferred in this embodiment.
According to the difference between the intensity of solar radiation and the cooling and heating requirements of users, the solar jet cooling and heating system mainly has three operation modes. 1. A radiation cooling mode; 2. a refrigerant working medium circulation refrigeration mode; 3. a refrigerant working medium circulation heating mode; the three modes of implementation are as follows:
a radiation cooling mode. Be applicable to daytime the sunlight stronger, the user has the condition of refrigeration demand, when the sun shines on photovoltaic heat collection generator 2 this moment, photovoltaic board or the film battery board of photovoltaic heat collection generator 2 surface laying can utilize solar energy to produce the electric energy on the one hand, and this part electric energy can be used for the drive of working medium pump 1 electrical component etc.. On the other hand, on the one hand, the heat energy of the sun irradiating on the photovoltaic heat collection generator 2 can be absorbed and utilized by the heat pipe below the photovoltaic panel to heat the refrigerant conveyed by the working medium pump 1, so that the refrigerant is gasified, expanded, heated and boosted in the generator cylinder 22 to form high-temperature and high-pressure gaseous refrigerant, the gaseous refrigerant flows through the four-way valve, the four-way valve is not electrified, the photovoltaic heat collection generator 2 is communicated with the main circuit 41 of the ejector 4, the evaporator 7 is communicated with the branch circuit 42 of the ejector 4, the high-temperature and high-pressure refrigerant flows to the ejector 4, the high-temperature and high-pressure refrigerant is condensed by the condenser 5 to become liquid refrigerant, after passing through the first one-way valve 6, a part of the refrigerant returns to the photovoltaic heat collection generator 2 through the working medium pump 1, a part of the refrigerant passes through the throttle valve 8 to be throttle, then reaches the branch 42 of the ejector 4, and flows to the condenser 5 together with the refrigerant from the photovoltaic heat collection generator 2 due to the entrainment effect of the ejector 4, thus forming a jet refrigeration cycle formed by the combination of the first circulation circuit and the second circulation circuit.
And a refrigerant working medium circulation refrigeration mode. The solar refrigeration system is suitable for the conditions that sunlight is weak, outdoor temperature is low, and a user has refrigeration requirements. At the moment, the four-way valve is electrified, the outlet of the photovoltaic heat collection generator 2 is directly communicated with the evaporator 7, the main circuit 41 and the branch circuit 42 of the ejector 4 are communicated to form a third circulation loop, the working medium pump 1 drives the refrigerant to flow to the photovoltaic heat collection generator 2, the refrigerant can be cooled in the heat pipe due to low outdoor temperature and then flows to the four-way valve, the refrigerant can exchange heat with air indoors through the evaporator 7 to achieve the purpose of refrigeration, and then the refrigerant reaches the working medium pump 1 through the second one-way valve 9 to complete the whole circulation. Since the main path 41 and the branch path 42 of the ejector 4 are communicated, and no refrigerant flows through the ejector 4 and the condenser 5 by the first check valve 6.
And a refrigerant working medium circulation heating mode. The solar heating system is suitable for the conditions that sunlight is strong, outdoor temperature is high, and a user has heating requirements. At the moment, the four-way valve is electrified, the outlet of the photovoltaic heat collection generator 2 is directly communicated with the evaporator 7, and the main circuit 41 and the branch circuit 42 of the ejector 4 are communicated to form a third circulation loop. The working medium pump 1 drives the refrigerant to flow to the photovoltaic heat collection generator 2, the refrigerant can be heated in the heat pipe due to high outdoor temperature and then flows to the four-way valve, the refrigerant passes through the evaporator 7, the high-temperature refrigerant in the room can exchange heat with the room to achieve the purpose of heating, and then the refrigerant reaches the working medium pump 1 through the second one-way valve 9 to complete the whole cycle. Since the main path 41 and the branch path 42 of the ejector 4 are communicated, and no refrigerant flows through the ejector 4 and the condenser 5 by the first check valve 6.
The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. A photovoltaic heat collection generator with a storage battery is characterized in that: the solar water heater comprises a photovoltaic heat collecting plate, a generator cylinder body, a heat transfer assembly and a storage battery, wherein the heat transfer assembly is arranged on the generator cylinder body, the photovoltaic heat collecting plate covers the heat transfer assembly and is used for absorbing heat to heat the covered heat transfer assembly, and the storage battery is connected with the photovoltaic heat collecting plate and is used for storing electric energy converted by the photovoltaic heat collecting plate.
2. The photovoltaic heat collector with battery of claim 1, wherein: the photovoltaic heat collecting plate is any one of a photovoltaic plate and a photovoltaic thin film battery.
3. The photovoltaic heat collector with battery of claim 1, wherein: the heat transfer component is any one of a heat pipe and a double-pipe heat exchanger.
4. The photovoltaic heat collector with battery of claim 1, wherein: still include the electrical heating subassembly of auxiliary heating, electrical heating subassembly sets up inside the generator cylinder body, the battery is connected with electrical heating subassembly and is used for supplying power to electrical heating subassembly.
5. The utility model provides a solar energy sprays cooling heating system, includes sprayer, condenser, evaporimeter, its characterized in that: the photovoltaic heat collection generator with the storage battery disclosed by claims 1-4 is characterized by further comprising a switching valve, one end of the photovoltaic heat collection generator with the storage battery is selectively communicated with the ejector or the evaporator through the switching valve for cooling or heating, the other end of the photovoltaic heat collection generator with the storage battery is connected with the condenser and the evaporator, and the ejector is connected with the condenser.
6. The solar jet cooling and heating system according to claim 5, wherein: the switching valve comprises a four-way valve, the ejector comprises a main path and a branch path, and the four-way valve is respectively connected with the photovoltaic heat collection generator, the evaporator and the main path and the branch path of the ejector.
7. The solar jet cooling and heating system according to claim 6, wherein: the photovoltaic heat collection device is characterized by further comprising a working medium pump, wherein the working medium pump is connected with the photovoltaic heat collection generator and used for conveying a circulating working medium to the heat transfer assembly, and the storage battery is connected with the working medium pump and used for supplying power to the working medium pump.
8. The solar jet cooling and heating system according to claim 7, wherein: the photovoltaic heat collection generator sequentially forms a first circulation loop with the four-way valve, the ejector main circuit, the condenser and the working medium pump, the evaporator sequentially forms a second circulation loop with the four-way valve, the ejector branch circuit and the condenser, the photovoltaic heat collection generator sequentially forms a third circulation loop with the four-way valve, the evaporator and the working medium pump, and a throttle valve is arranged between the condenser and the evaporator.
9. The solar jet cooling and heating system according to claim 8, wherein: still include first check valve, second check valve, first check valve sets up the condenser with between the choke valve, the second check valve sets up first check valve with between the evaporimeter, the second check valve with choke valve parallel connection.
10. The solar jet cooling and heating system according to claim 5, wherein: the evaporator and the condenser are provided with heat exchange devices, and the heat exchange devices are any one of finned tube heat exchangers, microchannel heat exchange and microscale heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921218656.5U CN210374162U (en) | 2019-07-31 | 2019-07-31 | Photovoltaic heat collection generator with storage battery and solar jet refrigeration and heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921218656.5U CN210374162U (en) | 2019-07-31 | 2019-07-31 | Photovoltaic heat collection generator with storage battery and solar jet refrigeration and heating system |
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| CN210374162U true CN210374162U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710023A (en) * | 2020-12-07 | 2021-04-27 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
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2019
- 2019-07-31 CN CN201921218656.5U patent/CN210374162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710023A (en) * | 2020-12-07 | 2021-04-27 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
| CN112710023B (en) * | 2020-12-07 | 2022-06-10 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
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