CN214620140U - Solar ground source heat pump system with balanced soil cold and hot loads - Google Patents
Solar ground source heat pump system with balanced soil cold and hot loads Download PDFInfo
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- 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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- 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
- Y02B10/40—Geothermal heat-pumps
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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
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/10—Geothermal 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a cold and hot load balanced solar energy ground source heat pump system of soil belongs to ground source heat pump system field. The utility model discloses a balanced solar energy ground source heat pump system of soil cold and hot load, including solar collector, ground pipe laying circulating water pump, ground pipe laying heat exchanger, ground source heat pump set, refrigerant water pump, air conditioner room. The utility model discloses a solar collector carries out the matter to medium water as the preheater of soil source earlier, has reduced the heat that draws from the soil source, is favorable to keeping and resuming soil temperature, when keeping current solar energy-geothermal energy comprehensive application energy supply system's whole functions, has better stability and sustainable operation's ability, simultaneously, the spring and autumn transition season can close the ground source heat pump unit, only starts buried pipe circulating water pump and will send the medium water that has exchanged heat with soil to the end and carry out the free operation of air conditioner; the energy loss is reduced, and the energy utilization rate is improved.
Description
Technical Field
The utility model relates to a ground source heat pump system field, more specifically say, relate to a cold and hot load balanced solar energy ground source heat pump system of soil.
Background
The use of renewable energy is an important means to address the crisis of an increasing shortage of non-renewable fossil energy. The energy consumption of the building is effectively reduced due to high energy efficiency. The ground source heat pump is different from the traditional air source heat pump, and uses underground shallow soil as a cold and heat source. The ground source heat pump has higher operation efficiency than the conventional air source heat pump because the soil temperature can be kept relatively stable and can be kept higher than the ambient temperature even in winter in cold regions. On the other hand, solar energy is an inexhaustible, safe, clean and pollution-free renewable energy source, and the application of solar energy is an important way for relieving energy and environmental crisis. However, since the solar energy available in the region is greatly influenced by seasons and climate, some solar energy utilization techniques are greatly limited.
At present, a new system combining two renewable energy sources, namely Solar-ground source heat pump (SGSHP), which has higher energy efficiency and diversified functions, is receiving wide attention all over the world. The system can provide cold and hot sources for the air conditioning system in winter and summer and can produce domestic hot water. Meanwhile, a Ground Heat Exchanger (GHE) is used as heat storage equipment, so that the attenuation of system efficiency and stability caused by intermittent and unstable solar energy is effectively overcome. SGSHP is therefore a potentially large-scale renewable energy application. In recent years, many scholars at home and abroad carry out deep research on design and optimization of the SGSHP. However, solar energy and a soil source are used as cold and heat sources to be operated in parallel and serve as auxiliary heat sources, so that in areas with cold winter and hot summer, due to imbalance between loads of buildings in winter and summer, after SGSHP is operated for a long time, soil temperature change is inevitably caused, and system efficiency and stability are finally influenced. In addition, in winter in cold regions, long term operation can cause the heat pump to operate at too low an evaporation temperature, even resulting in a shutdown.
The Chinese patent number CN201611034547.9, the publication date of the application is 5 and 25 months in 2018, and the invention name is: a clean energy technical service energy supply system comprises a load side system, an underground pipe system, a solar energy heat supplementing system and a hot water supply system, wherein the load side system, the underground pipe system, the solar energy heat supplementing system and the hot water supply system are composed of a ground source heat pump unit, a load side circulating pump, a ground source side circulating pump, a heat supplementing side circulating pump, a hot water supply side circulating pump, a heat storage water tank, a solar heat collector, a supercharging device, an outdoor underground pipe, a solar water heater, a ceiling radiation tail end, an air conditioner water return pipe, an air conditioner water supply pipe, a ground source side water supply pipe and a ground source side water return pipe, the air conditioner side water return pipe in the load side system is composed, one end of the air conditioner water supply pipe in the load side system is connected with the ground source heat pump unit, the other end of the air conditioner water supply pipe is connected with the ceiling radiation tail end and is connected with one end of the air conditioner water return pipe, the other end of the air conditioner water return pipe is connected with the load side circulating pump, the suction end of the load side circulating pump is provided with a supercharging device, the other end of the load side circulating pump is connected with a ground source heat pump unit through an air conditioner return pipe, the ground source heat pump unit, an air conditioner water supply pipe, a ceiling radiation tail end, the air conditioner return pipe, the supercharging device and the load side circulating pump are sequentially connected to form a circulating pipeline, the emission tail end, the air conditioner return pipe, the supercharging device and the load side circulating pump are sequentially connected to form a circulating pipeline, one end of the ground source heat pump unit in the buried pipe system is connected with the ground source side water supply pipe, the other end of the ground source water supply pipe is connected with an outdoor buried pipe, the other end-of the outdoor buried pipe is connected with the ground source side circulating pump, the other end of the ground source side circulating pump is connected with the ground source heat pump unit through the ground source side return pipe, and the ground source heat pump unit, the ground source side water supply pipe, the outdoor buried pipe, the ground source heat pump unit, the ground source side water supply pipe, the ground source heat pump unit, the ground source side circulating pipe, the outdoor ground pipe and the ground pipe are connected with the circulating pump unit, The solar energy heat-compensating side circulating pump is connected with the solar energy heat-compensating side circulating pump through a solar energy water supply pipe, the solar energy heat collector, the solar energy water supply pipe, the outdoor buried pipe, the solar energy water supply pipe and the solar energy heat-compensating side circulating pump are connected in sequence to form a circulating pipeline, the solar energy heat collector is connected with the solar energy water supply pipe in the hot water supply system, the other end of the solar energy water supply pipe is connected with a heat-accumulating water tank, the other end of the heat-accumulating water tank is connected with a solar energy water heater, and the other end of the solar energy water heater is connected with the hot water supply side circulating pump through the solar energy water supply pipe, the other end of the hot water supply side circulating pump is connected with the solar heat collector, the heat storage water tank, the solar water heater and the hot water supply side circulating pump are sequentially connected to form a circulating pipeline, and the valve V1 is assembled on a pipeline between the heat storage water tank and the outdoor buried pipe. Through the structure, the ground source heat pump unit is connected with the radiation tail end of the ceiling as a cold and heat source to realize the function of supplying cold in summer and supplying heat in winter, the solar heat collector is connected with the solar water heater to further facilitate the use of hot water by a user, so that a solar energy-geothermal energy comprehensive application energy supply system is formed. However, the system is divided into two independent units for collecting heat and supplementing heat to the soil, which easily causes energy loss in the independent operation process, improves energy loss and reduces energy utilization rate.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to overcome the problems of energy loss, energy loss increase, energy utilization rate reduction and the like when the existing solar energy-geothermal energy comprehensive application energy supply system is used for supplementing heat to soil, and provides a solar ground source heat pump system with balanced soil cold and hot loads, and by adopting the technical scheme of the utility model, the solar energy heat supplement system is formed after a solar heat collector, a ground heat exchanger, a ground circulating water pump and a ground source heat pump unit are connected in sequence; the solar heat collector, the ground heat exchanger, the ground circulating water pump and the air conditioning room are sequentially connected to form a transition circulating system; the ground source heat pump unit, the refrigerant water pump and the air conditioning room are sequentially connected to form a load system, the preheater taking solar energy as a soil source firstly carries out quality improvement on medium water, so that the heat extracted from the soil source is reduced, the soil temperature is kept and recovered, the full functions of the existing solar energy-geothermal energy comprehensive application energy supply system are kept, the system has better stability and sustainable operation capability, meanwhile, the ground source heat pump unit can be closed in spring and autumn transition seasons, and only the circulating water pump is started to send the medium water after heat exchange with the soil to the tail end for free operation of the air conditioner; the energy loss is reduced, and the energy utilization rate is improved.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a solar ground source heat pump system with balanced soil cold and hot loads, which comprises a solar heat collector, a ground pipe laying circulating water pump, a ground pipe laying heat exchanger, a ground source heat pump unit, a refrigerant water pump and an air conditioning room; one end of the solar heat collector is connected with the ground heat exchanger, the other end of the ground heat exchanger is connected with the ground circulating water pump, the other end of the ground circulating water pump is connected with the ground source heat pump unit, the ground source heat pump unit is connected with the other end of the solar heat collector, and the solar heat collector, the ground heat exchanger, the ground circulating water pump and the ground source heat pump unit are sequentially connected to form a solar heat supplementing system; one end of the solar heat collector is connected with the ground heat exchanger, the other end of the ground heat exchanger is connected with the ground circulating water pump, the other end of the ground circulating water pump is connected with the air-conditioning room, the other end of the air-conditioning room is connected with the other end of the solar heat collector, and the solar heat collector, the ground heat exchanger, the ground circulating water pump and the air-conditioning room are sequentially connected to form a transition circulating system; the ground source heat pump unit is connected with the refrigerant water pump, the other end of the refrigerant water pump is connected with the air-conditioning room, the other end of the air-conditioning room is connected with the other end of the ground source heat pump unit, and the ground source heat pump unit, the refrigerant water pump and the air-conditioning room are sequentially connected to form a load system.
Furthermore, the solar heat collector is connected with the ground heat exchanger through a conduit, a valve five and a valve fourteen are sequentially arranged between the solar heat collector and the ground heat exchanger, the ground heat exchanger is connected with the ground heat pump unit through a conduit, a valve I, a ground circulating water pump, a valve II and a valve III are sequentially arranged between the ground heat exchanger and the ground heat pump unit, the ground heat exchanger is connected with the air-conditioning room through a conduit, a valve I, a ground circulating water pump, a valve II and a valve IV are sequentially arranged between the ground heat exchanger and the air-conditioning room, the ground heat pump unit is connected with the air-conditioning room through a conduit, a refrigerant water pump and a valve nine are sequentially arranged between the ground heat exchanger and the air-conditioning room, and the ground heat pump unit and the solar heat collector are connected through a pipeline, the solar heat collector is characterized in that a valve eleven, a valve thirteen, a valve twelve and a valve six are sequentially arranged between the ground source heat pump unit and the solar heat collector, the air-conditioning room and the solar heat collector are connected through a conduit, a valve eleven, a valve thirteen, a valve twelve and a valve six are sequentially arranged between the air-conditioning room and the solar heat collector, and a valve eleven and a valve ten are sequentially arranged between the air-conditioning room and the ground source heat pump unit.
Furthermore, the solar water heater further comprises a circulating heating system, wherein the circulating heating system is composed of a solar heat collector and a water storage tank, a water outlet of the water storage tank is connected with a water inlet of the solar heat collector, and a water outlet of the solar heat collector is connected with a water inlet of the water storage tank to form a circulating pipeline.
Furthermore, the solar heat collector and the water storage tank are connected through a pipeline, a heat collector circulating water pump and a valve seventh are sequentially arranged between a water outlet of the solar heat collector and a water inlet of the water storage tank, and a valve eighth is arranged between a water outlet of the water storage tank and the water inlet of the solar heat collector.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) the utility model discloses a solar ground source heat pump system with balanced soil cold and hot loads, which comprises a solar heat collector, a ground pipe laying circulating water pump, a ground pipe laying heat exchanger, a ground source heat pump unit, a refrigerant water pump and an air conditioning room; one end of the solar heat collector is connected with the ground heat exchanger, the other end of the ground heat exchanger is connected with the ground circulating water pump, the other end of the ground circulating water pump is connected with the ground source heat pump unit, the ground source heat pump unit is connected with the other end of the solar heat collector, and the solar heat collector, the ground heat exchanger, the ground circulating water pump and the ground source heat pump unit are sequentially connected to form a solar heat compensation system; one end of the solar heat collector is connected with the ground heat exchanger, the other end of the ground heat exchanger is connected with the ground circulating water pump, the other end of the ground circulating water pump is connected with the air-conditioning room, the other end of the air-conditioning room is connected with the other end of the solar heat collector, and the solar heat collector, the ground heat exchanger, the ground circulating water pump and the air-conditioning room are sequentially connected to form a transition circulating system; the ground source heat pump unit is connected with the refrigerant water pump, the other end of the refrigerant water pump is connected with the air-conditioning room, the other end of the air-conditioning room is connected with the other end of the ground source heat pump unit, and the ground source heat pump unit, the refrigerant water pump and the air-conditioning room are sequentially connected to form a load system; through the structure, the ground source heat pump unit is used as a cold source and is connected with the air-conditioning room through the refrigerant water pump, so that the functions of cooling in summer and heating in winter are realized; the solar heat collector is connected with the buried pipe, the buried pipe is connected with the ground source heat pump unit through the buried pipe circulating water pump to form a solar heat supplementing system, the renewable resource of solar energy is utilized, medium water is heated firstly, the heated medium water is sent to the buried pipe, heat is supplemented to soil in transition seasons or winter, the supplemented medium water supplies heat or cold to air-conditioning rooms under the action of the ground source heat pump unit, and two units of heat collection and heat supplement in the conventional soil heat supplementing system are combined into one unit, so that the system is simplified, the independent heat recharging system from the heat collector to the buried pipe is omitted, and meanwhile, the system energy efficiency and the heat supplementing effect are improved; the solar heat collector is connected with the buried pipe, the buried pipe is directly connected with the air-conditioning room through the buried pipe circulating water pump, the ground source heat pump unit can be turned off in spring and autumn transition seasons, the circulating water pump is started, heat is exchanged between medium water and soil and then the medium water and the soil are sent to the air-conditioning room, and the function of free air-conditioning operation is achieved.
(2) The utility model discloses a soil cold and hot load balanced solar energy ground source heat pump system, connect through the pipe between solar collector and the ground heat exchanger, be equipped with valve five and valve fourteen between solar collector and the ground heat exchanger in proper order, connect through the pipe between ground heat exchanger and the ground heat pump set, be equipped with valve one, ground pipe circulating water pump, valve two, valve three between ground heat exchanger and the ground heat pump set in proper order, connect through the pipe between ground heat exchanger and the air conditioning room, be equipped with valve one, ground pipe circulating water pump, valve two, valve four between ground heat exchanger and the air conditioning room in proper order, connect through the pipe between ground heat pump set and the air conditioning room, be equipped with refrigerant water pump and valve nine between ground heat pump set and the air conditioning room in proper order, connect through the pipeline between ground heat pump set and the solar collector, a valve eleven, a valve thirteen, a valve twelve and a valve six are sequentially arranged between the ground source heat pump unit and the solar thermal collector, the air-conditioning room and the solar thermal collector are connected through a conduit, a valve eleven, a valve thirteen, a valve twelve and a valve six are sequentially arranged between the air-conditioning room and the solar thermal collector, and a valve eleven are sequentially arranged between the air-conditioning room and the ground source heat pump unit; the guide and the conveying of medium water are ensured through the guide pipe, and the control valve is opened and closed, so that the operation of each system is not interfered with each other, the accuracy and the stability of the operation of the system are ensured, and the misoperation of the system is prevented.
(3) The utility model discloses a cold and hot load balanced solar energy ground source heat pump system of soil still includes circulation heating system, circulation heating system comprises solar collector and water storage tank, and the delivery port of water storage tank and solar collector's water inlet are connected, and solar collector's delivery port and water storage tank's water inlet are connected, form a circulation pipeline, and through above-mentioned structure, the water storage tank is used for the storage of domestic water, and the water storage tank is connected with solar collector and is used for sending domestic water to solar collector and heat and deliver to the user again and provide the hot water supply.
(4) The utility model discloses a soil cold and hot load balanced solar energy ground source heat pump system, pass through the pipe connection between solar collector and the water storage tank, be equipped with collector circulating water pump and valve seven between the delivery port of solar collector and the water inlet of water storage tank in proper order, be equipped with valve eight between the delivery port of water storage tank and the water inlet of solar collector; through above-mentioned structure, heat collector circulating water pump guarantees that the circulation of domestic water between solar collector and water storage tank switches on, through the control flap switch, controls the water source break-make to the cut-off of control domestic water heating.
Drawings
Fig. 1 is a schematic structural diagram of a solar ground source heat pump system with balanced soil cold and heat loads according to the present invention;
FIG. 2 is a comparison diagram of the COP of the heat pump unit in the heating season of the conventional soil heat supplementing system and the soil heat supplementing system of the embodiment of the present invention;
fig. 3 is a comparison graph of average temperature of the ground heat exchanger of the soil concurrent heating system of the traditional soil concurrent heating system and the embodiment of the utility model.
The reference numerals in the schematic drawings illustrate:
1. a first valve; 2. a second valve; 3. a third valve; 4. a fourth valve; 5. a fifth valve; 6. a sixth valve; 7. a valve seventh; 8. a valve eighth; 9. a ninth valve; 10. a valve ten; 11. a valve eleven; 12. a valve twelve; 13. a valve thirteen; 14. a valve fourteen; 15. a ground heat exchanger; 16. a solar heat collector; 17. a water storage tank; 18. a heat collector circulating water pump; 19. a buried pipe circulating water pump; 20. a ground source heat pump unit; 21. a refrigerant water pump; 22. an air-conditioned room; 23. a first conduit; 24. a second conduit; 25. a third conduit; 26. a fourth conduit; 27. a fifth conduit; 28. a sixth conduit; 29. a seventh conduit; 30. a eighth conduit; 31. nine guide pipes; 32. ten guide pipes; 33. and eleven guide pipes.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
[ examples ]
As shown in fig. 1, the solar ground source heat pump system with balanced soil cooling and heating loads of the present embodiment includes a solar heat collector 16, a ground pipe circulating water pump 19, a ground pipe heat exchanger 15, a ground source heat pump unit 20, a refrigerant water pump 21, and an air-conditioned room 22; one end of a solar heat collector 16 is connected with a ground heat exchanger 15, the other end of the ground heat exchanger 15 is connected with a ground circulating water pump 19, the other end of the ground circulating water pump 19 is connected with a ground source heat pump unit 20, the ground source heat pump unit 20 is connected with the other end of the solar heat collector 16, and the solar heat collector 16, the ground heat exchanger 15, the ground circulating water pump 19 and the ground source heat pump unit 20 are sequentially connected to form a solar heat supplementing system; one end of a solar heat collector 16 is connected with a ground heat exchanger 15, the other end of the ground heat exchanger 15 is connected with a ground circulating water pump 19, the other end of the ground circulating water pump 19 is connected with an air-conditioning room 22, the other end of the air-conditioning room 22 is connected with the other end of the solar heat collector 16, and the solar heat collector 16, the ground heat exchanger 15, the ground circulating water pump 19 and the air-conditioning room 22 are sequentially connected to form a transition circulating system; the ground source heat pump unit 20 is connected with the refrigerant water pump 21, the other end of the refrigerant water pump 21 is connected with the air-conditioning room 22, the other end of the air-conditioning room 22 is connected with the other end of the ground source heat pump unit 20, and the ground source heat pump unit 20, the refrigerant water pump 21 and the air-conditioning room 22 are sequentially connected to form a load system; specifically, the ground source heat pump unit 20 is connected with the air-conditioning room 22 through a refrigerant water pump 21 as a cold and heat source to realize the function of cooling in summer and heating in winter, the solar heat collector 16 is connected with the buried pipe, the buried pipe is connected with the ground source heat pump unit 20 through a buried pipe circulating water pump 19 to form a solar heat supplementing system, the renewable resource of solar energy is utilized, medium water is firstly heated, the heated medium water is sent to the buried pipe to supplement heat to soil in transition seasons or winter, the supplemented medium water supplies heat or cool to the air-conditioning room 22 under the action of the ground source heat pump unit 20, two units of heat collection and heat supplement in the conventional soil heat supplementing system are combined into one unit, the system is simplified, the heat energy efficiency recharging system from the heat collector to the buried pipe is omitted, and the system and the heat supplementing effect are improved; the solar heat collector 16 is connected with a buried pipe, the buried pipe is directly connected with an air-conditioning room 22 through a buried pipe circulating water pump 19, the ground source heat pump unit 20 can be turned off in spring and autumn transition seasons, the circulating water pump is started, heat is exchanged between medium water and soil and then directly sent to the air-conditioning room 22, and the energy-saving air-conditioning operation function is achieved.
Fig. 2 and 3 are graphs comparing the heat pump unit COP in the heating season of the conventional soil heat compensation system and the soil heat compensation system of the embodiment with the average temperature of the ground heat exchanger 15, wherein the two soil heat compensation systems are different in the heating season in winter and the same in other seasons. In summer, the buried pipe heat exchanger 15, the ground source heat pump unit 20 and the fan coil are all started to refrigerate, and the solar heat collector 16 is connected to the water storage tank 17 to generate domestic hot water. In transition seasons, when the fan coil needs to be started to meet the building air conditioning load, and the load is smaller than that in summer and winter, unnecessary energy is wasted when the ground source heat pump unit 20 is started. Therefore, a new operation strategy is proposed to meet the situation in the transition season, the ground source heat pump unit 20 is closed, only the collector circulating water pump 18 is started to directly send the working medium after heat exchange with the buried pipe heat exchanger 15 to the fan coil, and energy consumption is effectively reduced, as shown in fig. 2, the structure is calculated through simulation in which the SGSHPS(s), the SGSHPS (r) and the COP of the ordinary GSHPS heat pump unit are in the heating season for three months, namely 1 week to 12 weeks, the SGSHPS(s) is the soil heat supplement system in the embodiment, the SGSHPS (r) is the traditional soil heat supplement system, the GSHPS (normal) is the ordinary heat pump unit, and the COP normal of the GSHPS (normal) is reduced from 4.58 to 4.11 after three months, and 0.47 is reduced. The COP r of the SGSHPS (r) is reduced by 0.35, the COP s of the SGSHPS(s) is reduced by 0.13, and therefore, the SGSHPS(s) is superior to the SGSHPS (r), because when the SGSHPS(s) operates, even if the temperature of the working medium is heated by the heat collector, the temperature is still lower than the temperature of soil, and because the solar heat collector 16 is preheated, the temperature difference between the working medium and the soil is reduced, so that the heat exchange amount is reduced. That is, no matter how much the working medium temperature is, the solar energy can effectively inhibit the change of the soil temperature, as can be seen from fig. 3, when the soil heat supplement system of the embodiment operates, the soil temperature Tsoil s is reduced by 0.8 ℃ in 10 years, while the soil temperature Tsoil r under the operation of the traditional soil heat supplement system is reduced by 1.6 ℃, the soil temperature Tsoil normal under the operation of the common solar ground source heat pump system is reduced by 3.1 ℃, and the reduction of the soil temperature can reduce the heat absorbed from the buried pipe heat exchanger 15, thereby reducing the working medium temperature. After long-term operation, the working condition of the heat pump becomes worse, and the system performance is influenced. The ability of the soil thermal remediation system of this embodiment to suppress this phenomenon is therefore of great importance.
As shown in fig. 1, in this embodiment, a solar heat collector 16 is connected to a ground heat exchanger 15 through a conduit, a valve five 5 and a valve fourteen 14 are sequentially arranged between the solar heat collector 16 and the ground heat exchanger 15, the ground heat exchanger 15 is connected to a ground heat pump unit 20 through a conduit, a valve one 1, a ground circulating water pump 19, a valve two 2 and a valve three 3 are sequentially arranged between the ground heat exchanger 15 and the ground heat pump unit 20, the ground heat exchanger is connected to an air-conditioning room 22 through a conduit, a valve one 1, a ground circulating water pump 19, a valve two 2 and a valve four 4 are sequentially arranged between the ground heat exchanger 15 and the air-conditioning room 22, the ground heat pump unit 20 is connected to the air-conditioning room 22 through a conduit, a refrigerant water pump 21 and a valve nine 9 are sequentially arranged between the ground heat pump unit 20 and the solar heat collector 16 through a conduit, a valve eleven 10, a valve thirteen 13, a valve twelve 12 and a valve six 6 are sequentially arranged between the ground source heat pump unit 20 and the solar heat collector 16, an air-conditioning room 22 is connected with the solar heat collector 16 through a conduit, a valve eleven 11, a valve thirteen 13, a valve twelve 12 and a valve six 6 are sequentially arranged between the air-conditioning room 22 and the solar heat collector 16, the air-conditioning room 22 is connected with the ground source heat pump unit 20 through a conduit, and a valve eleven 11 and a valve ten 10 are sequentially arranged between the air-conditioning room 22 and the ground source heat pump unit 20; specifically, the solar heat collector 16 and the ground heat exchanger 15 are connected through a third conduit 25 and a second conduit 24 in sequence, the joint of the third conduit 25 and the second conduit 24 is arranged between a fourteen valve 14 and a twelve valve 12, a fifth valve 5 is arranged on the third conduit 25, and a fourteen valve 14 is arranged on the second conduit 24 and is arranged at one side of the second conduit 24 connected with the ground heat exchanger 15; the ground heat exchanger 15 and the ground source heat pump unit 20 are connected through a first conduit 23, the first valve 1, the ground circulating water pump 19, the second valve 2 and the third valve 3 are sequentially arranged on the first conduit 23, the ground heat exchanger and the air-conditioning room 22 are connected through the first conduit 23 and the eighth conduit 30, the connection position of the first conduit 23 and the eighth conduit 30 is arranged between the second valve 2 and the third valve 3, the fourth valve 4 is arranged on the eighth conduit 30, the ground source heat pump unit 20 and the air-conditioning room 22 are connected through a ninth conduit 31, the refrigerant water pump 21 and the ninth valve 9 are sequentially arranged on the ninth conduit 31, the ground source heat pump unit 20 and the solar heat collector 16 are connected through a tenth conduit 32, a seventy 29, a second conduit 24, a fourth conduit 26 and a fifth conduit 27, the connection position of the seventy conduit 29 and the second conduit 24 is arranged between the fourteenth conduit 14 and the twelfth valve 12, the connection position of the fourth conduit 26 and the second conduit 24 is arranged on the connection side of the twelfth valve 12 and the ground source heat pump unit 20, the valve ten 10 is arranged on the conduit ten 32, the valve thirteen 13 is arranged on the conduit seven 29, the valve twelve 12 is arranged on the conduit two 24 and is arranged on one side of the conduit two 24 connected with the ground source heat pump unit 20, the valve six 6 is arranged on the conduit four 26, the air-conditioned room 22 and the solar heat collector 16 are connected through the conduit eleven 33, the conduit seven 29, the conduit two 24, the conduit four 26 and the conduit five 27, and the valve eleven 11 is arranged on the conduit eleven 33; the air-conditioned room 22 and the ground source heat pump unit 20 are connected through a conduit eleven 33 and a conduit ten 32.
As shown in fig. 1, in this embodiment, the solar water heater further includes a circulation heating system, the circulation heating system is composed of a solar heat collector 16 and a water storage tank 17, a water outlet of the water storage tank 17 is connected to a water inlet of the solar heat collector 16, a water outlet of the solar heat collector 16 is connected to a water inlet of the water storage tank 17 to form a circulation pipeline, and specifically, domestic water in the water storage tank 17 is heated by the solar heat collector 16 and then is delivered to a user through a pipeline to provide domestic hot water.
As shown in fig. 1, in this embodiment, the solar thermal collector 16 is connected to the water storage tank 17 through a pipeline, a collector circulating water pump 18 and a valve seven 7 are sequentially disposed between a water outlet of the solar thermal collector 16 and a water inlet of the water storage tank 17, and a valve eight 8 is disposed between a water outlet of the water storage tank 17 and a water inlet of the solar thermal collector 16; specifically, the solar heat collector 16 is connected with the water storage tank 17 through a conduit six 28 and a conduit five 27, the water outlet of the solar heat collector 16 is connected with the water inlet of the water storage tank 17 through a conduit six 28, the water outlet of the water storage tank 17 is connected with the water inlet of the solar heat collector 16 through a conduit five 27, the heat collector circulating water pump 18 and the valve seven 7 are arranged on a conduit six, and the valve eight 8 is arranged on a conduit five.
In order to further understand the technical scheme of the utility model, now combine fig. 1 to further illustrate the utility model discloses a cold and hot load balanced solar energy ground source heat pump system's of soil theory of operation.
When using, at first the staff is right the utility model discloses inspect, whether the inspection has the defect, just can't use if there is the defect, need inform the maintenance personal to maintain this moment, just can use if there is not the problem.
Heating mode in winter; the solar heat collector 16 is connected with the ground heat exchanger 15 through a valve five 5, a guide pipe three 25, a guide pipe two 24 and a valve fourteen 14, and the valve five 5 and the valve fourteen 14 are opened; the ground heat exchanger 15 is connected with the ground source heat pump unit 20 through a first valve 1, a second valve 2, a third valve 3 and a first guide pipe 23, the first valve 1, the second valve 2 and the third valve 3 are opened, the ground pipe circulating water pump 19 is positioned between the first valve 1 and the second valve 2, the ground source heat pump unit 20 is connected with the air-conditioning room 22 through a ninth valve 9 and a ninth guide pipe 31, the refrigerant water pump 21 is positioned between the ground source heat pump unit 20 and the ninth valve 9, and the ninth valve 9 is opened; the air-conditioning room 22 and the ground source heat pump unit 20 are connected through a valve eleven 11 and a conduit eleven 33, a valve ten 10 and a conduit ten 32, the valve eleven 11 and the valve ten 10 are opened, the ground source heat pump unit 20 and the solar heat collector 16 are connected through a valve ten 10 and a conduit ten 32, a valve thirteen 13 and a conduit seven 29, a valve twelve 12 and a conduit two 24, a valve six 6 and a conduit four 26, and a conduit five 27, and the valve ten 10, the valve thirteen 13, the valve twelve 12 and the valve six 6 are opened.
A summer refrigeration mode; the ground heat exchanger 15 is connected with the ground source heat pump unit 20 through a first valve 1, a second valve 2, a third valve 3 and a first guide pipe 23, the first valve 1, the second valve 2 and the third valve 3 are opened, the ground source heat pump unit 20 is connected with the air-conditioning room 22 through a first valve 9 and a second guide pipe 31, the refrigerant water pump 21 is positioned between the ground source heat pump unit 20 and the air-conditioning room 22, and the first valve 9 is opened; the air-conditioning room 22 and the ground source heat pump unit 20 are connected through a valve 11, a conduit seven 29, a valve 10 and a conduit ten 32, the valve 11 and the valve 10 are opened, the ground source heat pump unit 20 and the ground heat exchanger 15 are connected through a valve twelve 12, a valve fourteen 14 and a conduit two 24, and the valve twelve 12 and the valve fourteen 14 are opened.
A transitional season free air conditioning mode; the ground heat exchanger 15 is connected with the air-conditioning room 22 through a valve 1, a valve 2, a first guide pipe 23, a valve 4 and a second guide pipe 30, the ground circulating water pump 19 is positioned between the ground heat exchanger 15 and a second valve 2, and the first valve 1, the second valve 2 and the fourth valve 4 are opened; the air-conditioned room 22 is connected with the ground heat exchanger 15 through a valve eleven 11 and a conduit eleven 33, a valve thirteen 13 and a conduit seven 29, a valve fourteen 14 and a conduit two 24, and the valve fourteen 14, the valve eleven 11 and the valve thirteen 13 are opened.
The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a cold and hot load balanced solar energy ground source heat pump system of soil which characterized in that: the system comprises a solar heat collector (16), a ground pipe circulating water pump (19), a ground pipe heat exchanger (15), a ground source heat pump unit (20), a refrigerant water pump (21) and an air-conditioning room (22); one end of the solar heat collector (16) is connected with the ground heat exchanger (15), the other end of the ground heat exchanger (15) is connected with the ground circulating water pump (19), the other end of the ground circulating water pump (19) is connected with the ground source heat pump unit (20), the ground source heat pump unit (20) is connected with the other end of the solar heat collector (16), and the solar heat collector (16), the ground heat exchanger (15), the ground circulating water pump (19) and the ground source heat pump unit (20) are sequentially connected to form a solar heat compensation system; one end of the solar heat collector (16) is connected with the ground heat exchanger (15), the other end of the ground heat exchanger (15) is connected with the ground circulating water pump (19), the other end of the ground circulating water pump (19) is connected with the air-conditioning room (22), the other end of the air-conditioning room (22) is connected with the other end of the solar heat collector (16), and the solar heat collector (16), the ground heat exchanger (15), the ground circulating water pump (19) and the air-conditioning room (22) are sequentially connected to form a transition circulating system; the ground source heat pump unit (20) is connected with the refrigerant water pump (21), the other end of the refrigerant water pump (21) is connected with the air-conditioning room (22), the other end of the air-conditioning room (22) is connected with the other end of the ground source heat pump unit (20), and the ground source heat pump unit (20), the refrigerant water pump (21) and the air-conditioning room (22) are sequentially connected to form a load system.
2. The solar ground source heat pump system for soil cold and heat load balance according to claim 1, characterized in that: the solar heat collector (16) is connected with the ground heat exchanger (15) through a conduit, a valve five (5) and a valve fourteen (14) are sequentially arranged between the solar heat collector (16) and the ground heat exchanger (15), the ground heat exchanger (15) is connected with the ground source heat pump unit (20) through a conduit, a valve I (1), a ground pipe circulating water pump (19), a valve II (2) and a valve III (3) are sequentially arranged between the ground heat exchanger (15) and the ground source heat pump unit (20), the ground heat exchanger (15) is connected with the air conditioning room (22) through a conduit, the valve I (1), the ground pipe circulating water pump (19), the valve II (2) and the valve IV (4) are sequentially arranged between the ground heat exchanger (15) and the air conditioning room (22), and the ground heat pump unit (20) is connected with the air conditioning room (22) through a conduit, a refrigerant water pump (21) and a valve nine (9) are sequentially arranged between the ground source heat pump unit (20) and the air-conditioning room (22), the ground source heat pump unit (20) is connected with the solar heat collector (16) through a pipeline, a valve ten (10), a valve thirteen (13), a valve twelve (12) and a valve six (6) are sequentially arranged between the ground source heat pump unit (20) and the solar heat collector (16), the air-conditioning room (22) and the solar heat collector (16) are connected through a conduit, a valve eleven (11), a valve thirteen (13), a valve twelve (12) and a valve six (6) are sequentially arranged between the air-conditioning room (22) and the solar heat collector (16), and a valve eleven (11) and a valve ten (10) are sequentially arranged between the air-conditioning room (22) and the ground source heat pump unit (20).
3. The solar ground source heat pump system with balanced soil cold and heat load according to claim 2, characterized in that: still include circulation heating system, circulation heating system constitute by solar collector (16) and water storage tank (17), the delivery port of water storage tank (17) be connected with the water inlet of solar collector (16), the delivery port of solar collector (16) be connected with the water inlet of water storage tank (17), form a circulation pipeline.
4. The solar ground source heat pump system with balanced soil cold and heat load according to claim 3, characterized in that: the solar water heater is characterized in that the solar heat collector (16) and the water storage tank (17) are connected through a pipeline, a heat collector circulating water pump (18) and a valve seven (7) are sequentially arranged between a water outlet of the solar heat collector (16) and a water inlet of the water storage tank (17), and a valve eight (8) is arranged between a water outlet of the water storage tank (17) and the water inlet of the solar heat collector (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120149690.2U CN214620140U (en) | 2021-01-19 | 2021-01-19 | Solar ground source heat pump system with balanced soil cold and hot loads |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120149690.2U CN214620140U (en) | 2021-01-19 | 2021-01-19 | Solar ground source heat pump system with balanced soil cold and hot loads |
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| CN214620140U true CN214620140U (en) | 2021-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294294A (en) * | 2023-03-06 | 2023-06-23 | 中国科学院武汉岩土力学研究所 | Combined energy supply system for coupling geothermal energy and solar energy in deep and shallow layers |
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2021
- 2021-01-19 CN CN202120149690.2U patent/CN214620140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294294A (en) * | 2023-03-06 | 2023-06-23 | 中国科学院武汉岩土力学研究所 | Combined energy supply system for coupling geothermal energy and solar energy in deep and shallow layers |
| CN116294294B (en) * | 2023-03-06 | 2023-09-15 | 中国科学院武汉岩土力学研究所 | Combined energy supply system for coupling geothermal energy and solar energy in deep and shallow layers |
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