CN103712367B - Solar air source heat pumps air conditioning system - Google Patents
Solar air source heat pumps air conditioning system Download PDFInfo
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- CN103712367B CN103712367B CN201310693116.3A CN201310693116A CN103712367B CN 103712367 B CN103712367 B CN 103712367B CN 201310693116 A CN201310693116 A CN 201310693116A CN 103712367 B CN103712367 B CN 103712367B
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- heat exchanger
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- solar
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- hot water
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/272—Solar heating or cooling
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Solar air source heat pumps air conditioning system disclosed by the invention, including solar thermal collector, solar thermal collector is connected to hot water storage tank and the first water circulating pump by pipeline, first water circulating pump is respectively connecting to user side and one end of the first finned heat exchanger by pipeline, and hot water storage tank is respectively connecting to user side and the other end of the first finned heat exchanger by pipeline; The two ends of user side are connected with First Heat Exchanger two ends respectively, and one of them is connected between end and is provided with the second water circulating pump at user side and First Heat Exchanger; First Heat Exchanger is connected to filter and four-way change-over valve, and filter is connected with reservoir and the second finned heat exchanger in turn, and four-way change-over valve is connected to the second heat exchanger, compressor and gas-liquid separator and the second finned heat exchanger; Expansion valve it is provided with between First Heat Exchanger and filter. This air conditioning system utilizes clean energy resource solar energy and air energy, cooling in summer, winter heating, annual offer domestic hot-water.
Description
Technical field
The invention belongs to air source heat pump equipment technical field, be specifically related to a kind of solar air source heat pumps air conditioning system.
Background technology
The advantages such as air source heat pump technology has efficiently, energy-saving and environmental protection, all have use in public building, business club, private villa. Current main being limited in that of air source heat pump technology: when ambient temperature is relatively low; reduce the heat exchanger efficiency of vaporizer on the one hand; the easy frosting of still further aspect vaporizer; the compression ratio of compressor of air conditioner sharply raises; the delivery temperature of compressor usually can exceed the working range that compressor allows; thus causing the start and stop of high frequent; cannot normal operation; if things go on like this; the overall performance of compressor will be damaged; reduce the service life of air-conditioning equipment, increase the operating cost of unit, so its application is significantly limited in vast north cold area.
Solar energy is never exhausted clean energy resource, measures big and aboundresources, environmental protection. Energy-flux density yet with solar energy is low, and varies in accordance with the time and the place, and has intermittence and unreliability. The impact of the various factors such as the irradiance climate condition of solar energy can not maintain constant, and as run into continuous rainy weather, the supply of solar energy will be interrupted. In addition solar energy is a kind of radiant energy, has instantaneity, not easily stores, it is necessary to the energy immediately converting other forms to could utilize and store. Therefore, cold district, heats individually with solar energy, is generally difficult to meet requirement.
Existing solar energy and air source heat pump linkage hot water system solve that solar energy affected by rainy weather cannot continuous heat supply and the low problem of winter solar energy utilization rate. But the problem caused because ambient temperature is low is not still effectively alleviated and is solved, main manifestations be following some: 1, relatively low ambient temperature makes the operating condition of unit be deteriorated, the heat exchange efficiency of vaporizer reduces, and the runnability of unit is deteriorated;2, the too low evaporimeter frosting that causes of ambient temperature, unit is difficult to continuous operation, and unit defrosts and causes the stability reduction of energy consumption increase, operating cost increase, energy-saving effect variation, unit minimizing in service life, system.
Summary of the invention
It is an object of the invention to provide a kind of solar air source heat pumps air conditioning system, solve the problem of air source heat pump runnability variation and evaporimeter frosting under low temperature, and solving existing device cannot utilize solar energy for the problem of user's heat supply continuously, meet air source heat pump and solar energy linkage effect for air conditioner cold-heat load.
The technical solution adopted in the present invention is: solar air source heat pumps air conditioning system, including solar thermal collector, solar thermal collector is connected to hot water storage tank and the first water circulating pump by pipeline, first water circulating pump is respectively connecting to user side and one end of the first finned heat exchanger by pipeline, and hot water storage tank is respectively connecting to user side and the other end of the first finned heat exchanger by pipeline; The two ends of user side are connected with First Heat Exchanger two ends respectively, and one of them is connected between end and is provided with the second water circulating pump at user side and First Heat Exchanger; First Heat Exchanger is connected to filter and four-way change-over valve, filter is connected with reservoir and the second finned heat exchanger in turn, second port of four-way change-over valve is connected with the second heat exchanger, compressor and gas-liquid separator in turn, and gas-liquid separator is connected to the 3rd port of four-way change-over valve again through pipeline; 4th port of four-way change-over valve is connected to the second finned heat exchanger; Expansion valve it is provided with between First Heat Exchanger and filter.
The feature of the present invention also resides in,
The first electric two-way valve it is provided with between hot water storage tank and user side.
It is provided with check-valves between first water circulating pump and user side.
The second electric two-way valve it is provided with between hot water storage tank and the first finned heat exchanger.
Being arranged side by side with the first finned heat exchanger of second finned heat exchanger, is provided with blower fan in the side of the second finned heat exchanger.
The side of the second heat exchanger is respectively arranged with cooling water inlet end and hot water outlet end.
The invention has the beneficial effects as follows: the solar air source heat pumps air conditioning system of the present invention utilizes clean energy resource solar energy and air energy, cooling in summer, winter heating, annual offer domestic hot-water. When winter heating's air conditioner heat load is less, solar energy system can meet heating demand, is delayed the startup time of air source heat pump system. When winter heating's air conditioner heat load is bigger, solar energy system is that air source heat pump system carries out low temp compensating, under same ambient temperature, solar energy auxiliary heating makes the evaporating temperature of refrigerant system be improved, and the solar air source heat pumps unit that the COP value processed of unit is more common is significantly improved. Heat effect due to auxiliary thermal source low temp compensating, improve the air themperature entering vaporizer, the probability making its frosting reduces, thus it is possible to prevent evaporator surface frosting, making it keep higher heat exchange efficiency, meanwhile, the defrost number of times of unit and time also greatly reduce, substantial amounts of electric energy can be saved, and ensure the continuous continual operation of source pump. Carry out low temp compensating by solar energy as auxiliary thermal source and improve system evaporating temperature, indirectly improve the working environment of compressor, not only solve compressor problem of cisco unity malfunction under extraneous low temperature environment, and can make effectively extend the service life of whole source pump.Carrying out low temp compensating by solar energy as auxiliary thermal source, energy-saving benefit and the economic benefit of whole system all dramatically increase, colder in the north in Household Air-source Heat Pump in Cold Regions also can be used preferably. During cooling in summer, air source heat pump system is had to provide the user cold, it is overcast and rainy or when time in midwinter solar energy system is difficult to the demand meeting user domestic hot-water, air source heat pump system has the function of domestic hot-water supply concurrently, whole system links, substantially increase the utilization rate of the energy, really just serve the effect of energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the solar air source heat pumps air conditioning system of the present invention.
In figure, 1. solar thermal collector, 2. hot water storage tank, 3. water circulating pump, 4. the first electric two-way valve, 5. check-valves, 6. user side, 7. the second electric two-way valve, 8. the first finned heat exchanger, 9. blower fan, 10. the second finned heat exchanger, 11. reservoir, 12. filters, 13. expansion valves, 14. gas-liquid separator, 15. compressors, 16. second heat exchangers, 17. four-way change-over valve, 18. First Heat Exchangers, 19. second water circulating pumps;
161. cooling water inlet end, 162. hot water outlet ends.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in detail.
The invention provides a kind of solar air source heat pumps air conditioning system, as shown in Figure 1, including solar thermal collector 1, solar thermal collector 1 is connected to hot water storage tank 2 and the first water circulating pump 3 by pipeline, first water circulating pump 3 is respectively connecting to one end of user side 6 and the first finned heat exchanger 8 by pipeline, and hot water storage tank 2 is respectively connecting to the other end of user side 6 and the first finned heat exchanger 8 by pipeline; The two ends of user side 6 are connected with First Heat Exchanger 18 two ends respectively, and one of them is connected between end and is provided with the second water circulating pump 19 at user side 6 and First Heat Exchanger 18; First Heat Exchanger 18 is connected to filter 12 and four-way change-over valve 17, filter 12 is connected with reservoir 11 and the second finned heat exchanger 10 in turn, second port of four-way change-over valve 17 is connected with the second heat exchanger 16, compressor 15 and gas-liquid separator 14 in turn, and gas-liquid separator 14 is connected to the 3rd port of four-way change-over valve 17 again through pipeline; 4th port of four-way change-over valve 17 is connected to the second finned heat exchanger 10; Expansion valve 13 it is provided with between First Heat Exchanger 18 and filter 12.
The first electric two-way valve 4 it is provided with between hot water storage tank 2 and user side 6.
It is provided with check-valves 5 between first water circulating pump 3 and user side 6.
It is provided with the second electric two-way valve 7 between hot water storage tank 2 and the first finned heat exchanger 8.
Being arranged side by side with the first finned heat exchanger 8 of second finned heat exchanger 10, is provided with blower fan 9 in the side of the second finned heat exchanger 10.
The side of the second heat exchanger 16 is respectively arranged with cooling water inlet end 161 and hot water outlet end 162.
Spring, summer, autumn non-overcast and rainy time, this system can utilize solar energy to provide a user with domestic hot-water, concrete mode is: solar thermal collector 1 is connected with hot water storage tank the 2, first electric two-way valve 4, user side 6, check-valves the 5, first water circulating pump 3 and constitutes loop successively, now the second electric two-way valve 7 is closed, this makes it possible in early winter, season in the early spring is that terminal temperature difference is for air conditioner heat when air conditioner load is less, postpone and reduce the startup time of air source heat pump with this, reach to save the effect of the energy, reasonable energy utilization.
Time overcast and rainy, by the heat exchange effect of the second heat exchanger 16, the cool water heating entered from cooling water inlet end 161 is become hot water, and is provided out hot water by hot water outlet end 162.
Summer air-conditioning refrigeration duty is bigger, when needing cooling, specific works process is: cold-producing medium pass sequentially through connected by pipeline compressor the 15, second heat exchanger 16, four-way change-over valve the 17, second finned heat exchanger 10, reservoir 11, filter 12, expansion valve 13, First Heat Exchanger 18, four-way change-over valve 17, gas-liquid separator 14, this primary Ioops of compressor 15, refrigerating medium circulates in First Heat Exchanger the 18, second water circulating pump 19, user side this primary Ioops of the 6, second heat exchanger 18, provides the user cold.
Winter, when air conditioner heat load is excessive, when the heating scarce capacity of solar thermal collector 1 is to meet air conditioner load and require, if the temperature of heating medium is not less than 40 DEG C in solar thermal collector 1, solar thermal collector 1 is connected with hot water storage tank the 2, first electric two-way valve 4, user side 6, check-valves the 5, first water circulating pump 3 and constitutes loop successively, and now the second electric two-way valve 7 is closed; Meanwhile, cold-producing medium pass sequentially through connected by pipeline compressor the 15, second heat exchanger 16, four-way change-over valve 17, First Heat Exchanger 18, expansion valve 13, filter 12, reservoir the 11, second finned heat exchanger 10, four-way change-over valve 17, gas-liquid separator 14, this primary Ioops of compressor 15; Refrigerating medium circulates in First Heat Exchanger the 18, second water circulating pump 19, user side 6, this primary Ioops of First Heat Exchanger 18, provides the user air conditioner heat.
Winter, when the temperature of the heating medium in solar thermal collector 1 is less than 40 DEG C, then solar thermal collector 1, hot water storage tank the 2, second electric two-way valve the 7, first finned heat exchanger the 8, first water circulating pump 3, solar thermal collector 1 are connected and composed loop by associated conduit successively, and the first electric two-way valve 4 is closed; Meanwhile, cold-producing medium pass sequentially through connected by pipeline compressor the 15, second heat exchanger 16, four-way change-over valve 17, First Heat Exchanger 18, expansion valve 13, filter 12, reservoir the 11, second finned heat exchanger 10, four-way change-over valve 17, gas-liquid separator 14, this primary Ioops of compressor 15; Refrigerating medium circulates in First Heat Exchanger the 18, second water circulating pump 19, user side 6, provides the user air conditioner heat. Now, domestic hot-water is accessed hot water supply system by the hot water outlet end 162 of the second heat exchanger 16. During operation, blower fan 9 is as forced convertion equipment, air after being heated by first finned heat exchanger 8 blows to the second finned heat exchanger 10, then the second finned heat exchanger 10 ambient air temperature greatly raises, and this makes the cycle of the outside frosting of the second finned heat exchanger 10 greatly extend or even frost-free.
By the way, the solar air source heat pumps air conditioning system of the present invention, solve the problem of solar energy system runnability variation and evaporimeter frosting under low temperature. The solar air source heat pumps air conditioning system of the present invention utilizes clean energy resource solar energy and air energy, cooling in summer, winter heating, annual offer domestic hot-water. When winter heating's air conditioner heat load is less, solar energy system can meet heating demand, is delayed the startup time of air source heat pump system. When winter heating's air conditioner heat load is bigger, solar energy system is that air source heat pump system carries out low temp compensating, under same ambient temperature, solar energy auxiliary heating makes the evaporating temperature of refrigerant system be improved, and the solar air source heat pumps unit that the COP value processed of unit is more common is significantly improved. Heat effect due to auxiliary thermal source low temp compensating, improve the air themperature entering vaporizer, the probability making its frosting reduces, thus it is possible to prevent evaporator surface frosting, making it keep higher heat exchange efficiency, meanwhile, the defrost number of times of unit and time also greatly reduce, substantial amounts of electric energy can be saved, and ensure the continuous continual operation of source pump. Carry out low temp compensating by solar energy as auxiliary thermal source and improve system evaporating temperature, indirectly improve the working environment of compressor, not only solve compressor problem of cisco unity malfunction under extraneous low temperature environment, and can make effectively extend the service life of whole source pump. Carrying out low temp compensating by solar energy as auxiliary thermal source, energy-saving benefit and the economic benefit of whole system all dramatically increase, colder in the north in Household Air-source Heat Pump in Cold Regions also can be used preferably. During cooling in summer, air source heat pump system is had to provide the user cold, it is overcast and rainy or when time in midwinter solar energy system is difficult to the demand meeting user domestic hot-water, air source heat pump system has the function of domestic hot-water supply concurrently, whole system links, substantially increase the utilization rate of the energy, really just serve the effect of energy-conserving and environment-protective.
Claims (4)
1. solar air source heat pumps air conditioning system, it is characterized in that, including solar thermal collector (1), described solar thermal collector (1) is connected to hot water storage tank (2) and the first water circulating pump (3) by pipeline, described first water circulating pump (3) is respectively connecting to user side (6) and one end of the first finned heat exchanger (8) by pipeline, and described hot water storage tank (2) is respectively connecting to user side (6) and the other end of the first finned heat exchanger (8) by pipeline;The two ends of described user side (6) are connected with First Heat Exchanger (18) two ends respectively, and one of them is connected between end and is provided with the second water circulating pump (19) at described user side (6) and described First Heat Exchanger (18); Described First Heat Exchanger (18) is connected to filter (12) and four-way change-over valve (17), described filter (12) is connected with reservoir (11) and the second finned heat exchanger (10) in turn, second port of described four-way change-over valve (17) is connected with the second heat exchanger (16), compressor (15) and gas-liquid separator (14) in turn, and described gas-liquid separator (14) is connected to the 3rd port of described four-way change-over valve (17) again through pipeline; 4th port of described four-way change-over valve (17) is connected to the second finned heat exchanger (10); It is provided with expansion valve (13) between described First Heat Exchanger (18) and described filter (12); It is provided with the first electric two-way valve (4) between described hot water storage tank (2) and described user side (6); It is provided with check-valves (5) between described the first water circulating pump (3) and described user side (6).
2. solar air source heat pumps air conditioning system as claimed in claim 1, it is characterised in that be provided with the second electric two-way valve (7) between described hot water storage tank (2) and described the first finned heat exchanger (8).
3. solar air source heat pumps air conditioning system as claimed in claim 1, it is characterized in that, being arranged side by side with described first finned heat exchanger (8) of described the second finned heat exchanger (10), is provided with blower fan (9) in the side of described the second finned heat exchanger (10).
4. the solar air source heat pumps air conditioning system as described in claims 1 to 3 any one, it is characterized in that, the side of described the second heat exchanger (16) is respectively arranged with cooling water inlet end (161) and hot water outlet end (162).
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| CN201310693116.3A CN103712367B (en) | 2013-12-16 | 2013-12-16 | Solar air source heat pumps air conditioning system |
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| CN201310693116.3A CN103712367B (en) | 2013-12-16 | 2013-12-16 | Solar air source heat pumps air conditioning system |
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| CN103712367A CN103712367A (en) | 2014-04-09 |
| CN103712367B true CN103712367B (en) | 2016-06-15 |
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| CN104534587A (en) * | 2014-12-16 | 2015-04-22 | 陕西东泰能源科技有限公司 | Efficient refrigeration air source heat pump |
| CN105509363B (en) * | 2016-01-31 | 2017-10-31 | 嘉兴学院 | High-efficiency cleaning multiple-energy-source comprehensively utilizes cold-hot combined supply system |
| CN105865026B (en) * | 2016-06-06 | 2019-02-01 | 广东日出东方空气能有限公司 | Water heater with solar energy and air energy composite heat power supply |
| CN106895474B (en) * | 2017-03-24 | 2019-04-12 | 东南大学 | A kind of multi-mode solar heat pump cold and hot water supply system |
| CN108507192A (en) * | 2018-03-01 | 2018-09-07 | 河北陆特新能源科技有限公司 | The air source heat pump assisted using solar heat energy |
| CN109724250A (en) * | 2019-01-09 | 2019-05-07 | 山东大学 | A kind of high/low temperature phase-change heat-storage power supply device and control method |
| CN110131821A (en) * | 2019-05-16 | 2019-08-16 | 陕西理工大学 | A kind of air-cooled integrated heat pump of water cooling of novel belt solar heat compensation |
| CN110848846B (en) * | 2019-11-19 | 2023-12-08 | 珠海格力电器股份有限公司 | Solar air conditioner heat pump system, control method and air conditioner |
| CN113566450A (en) * | 2021-06-29 | 2021-10-29 | 日出东方控股股份有限公司 | Cold and hot combined supply system for defrosting by using clean heat energy and control method |
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Effective date of registration: 20200309 Address after: 621100 huangjiaba industrial concentration zone, Santai County, Mianyang City, Sichuan Province Patentee after: Sichuan hanshang Energy Technology Co., Ltd Address before: 723000 Hanjiang Industrial Park (town), Hantai District, Shaanxi, Hanzhoung Patentee before: Shaanxi Dongtai Energy Technology Co., Ltd. |
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Effective date of registration: 20200731 Address after: 621000 No. 89 Jia Jia street, Jing Kai District, Sichuan, Mianyang Patentee after: Sichuan hanshang solar thermal Refrigeration Technology Co., Ltd Address before: 621100 huangjiaba industrial concentration zone, Santai County, Mianyang City, Sichuan Province Patentee before: Sichuan hanshang Energy Technology Co.,Ltd. |