CN114646085B - Geothermal source-air source comprehensive heat energy utilization system - Google Patents

Geothermal source-air source comprehensive heat energy utilization system Download PDF

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Publication number
CN114646085B
CN114646085B CN202210242182.8A CN202210242182A CN114646085B CN 114646085 B CN114646085 B CN 114646085B CN 202210242182 A CN202210242182 A CN 202210242182A CN 114646085 B CN114646085 B CN 114646085B
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China
Prior art keywords
water
air source
valve
inlet valve
fluid communication
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CN202210242182.8A
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Chinese (zh)
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CN114646085A (en
Inventor
陈雪君
王健
苏强
顾子超
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Jiangsu Jintong Lingguang Nuclear Energy Technology Co ltd
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Jiangsu Jintong Lingguang Nuclear Energy Technology Co ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/082—Hot water storage tanks specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
    • F24D3/1066—Distributors for heating liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/11—Geothermal energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention relates to a geothermal source-air source comprehensive heat energy utilization system, which comprises: at least one geothermal well; an air source, wherein an air source cooling valve and an air source back cooling valve are arranged at the air source; the first water source unit comprises a first evaporator and a first condenser, and a first water inlet valve and a first water return valve are arranged at the first evaporator; a third water inlet valve and a third water return valve are arranged at the first condenser; the second water source unit comprises a second evaporator and a second condenser, and a second water inlet valve and a second water return valve are arranged at the second evaporator; a sixth water inlet valve and a sixth water return valve are arranged at the second condenser, and the sixth water inlet valve, the second condenser and the sixth water return valve are sequentially in fluid communication and form a loop for circulating the domestic water; and the heat exchanger is provided with a fifth water inlet valve, a fifth water return valve, a seventh water inlet valve and a seventh water return valve, and at least one geothermal well, the fifth water inlet valve, the heat exchanger and the fifth water return valve are sequentially in fluid communication.

Description

Geothermal source-air source comprehensive heat energy utilization system
Technical Field
The invention relates to the technical field of heat energy utilization, in particular to a geothermal source-air source comprehensive heat energy utilization system.
Background
Currently, the energy problem has become a key point of national development, and a great deal of fossil energy is used to cause serious environmental pollution, so that geothermal energy is increasingly focused as a clean new energy. The medium-deep geothermal energy has the characteristics of stable heat energy, quick recovery and the like, and is particularly suitable for a heat source of a heat energy utilization system.
Disclosure of Invention
Aiming at the related defects existing in the large-scale use of fossil energy, the invention aims to provide a geothermal source-air source comprehensive heat energy utilization system which can utilize a geothermal source and an air source to supply heat and cool for the air conditioning side of a user and heat for the raw water.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a geothermal source-air source comprehensive heat energy utilization system, can supply heat, supply cold and for the user air conditioner side for the heating of domestic water, geothermal source-air source comprehensive heat energy utilization system include: at least one geothermal well; the air source is provided with an air source cooling valve and an air source back cooling valve, and the air source, the air source cooling valve, the user air-conditioning side and the air source back cooling valve are sequentially in fluid communication and form a water supply circulation flowing loop; the first water source unit comprises a first evaporator and a first condenser, wherein a first water inlet valve and a first water return valve are arranged at the first evaporator, and the at least one geothermal well, the first water inlet valve, the first evaporator and the first water return valve are sequentially in fluid communication and form a water supply circulation flow loop; the air source, the first water inlet valve, the first evaporator and the first water return valve are sequentially in fluid communication and form a water supply circulation flow loop; a third water inlet valve and a third water return valve are arranged at the first condenser, and the user air-conditioning side, the third water inlet valve, the first condenser and the third water return valve are sequentially in fluid communication and form a water supply circulation flow loop; the second water source unit comprises a second evaporator and a second condenser, a second water inlet valve and a second water return valve are arranged at the second evaporator, and the at least one geothermal well, the second water inlet valve, the second evaporator and the second water return valve are sequentially in fluid communication and form a water supply circulation flow loop; the air source, the second water inlet valve, the second evaporator and the second water return valve are sequentially in fluid communication and form a water supply circulation flow loop; a sixth water inlet valve and a sixth water return valve are arranged at the second condenser, and the sixth water inlet valve, the second condenser and the sixth water return valve are sequentially in fluid communication and can supply domestic water to flow; the heat exchanger is provided with a fifth water inlet valve, a fifth water return valve, a seventh water inlet valve and a seventh water return valve, and the at least one geothermal well, the fifth water inlet valve, the heat exchanger and the fifth water return valve are sequentially in fluid communication and form a water supply circulation flow loop; the seventh water inlet valve, the heat exchanger and the seventh water return valve are sequentially in fluid communication and can supply domestic water to flow.
In the above technical solution, preferably, a fourth water inlet valve and a fourth water return valve are further disposed at the first evaporator, and the user air-conditioning side, the fourth water inlet valve, the first evaporator and the fourth water return valve are sequentially in fluid communication and form a water supply circulation flow loop. Still further preferably, the cooling system further comprises a cooling tower, wherein a cooling tower water inlet valve and a cooling tower water return valve are arranged at the cooling tower, and the second condenser, the cooling tower water inlet valve, the cooling tower and the cooling tower water return valve are sequentially in fluid communication and form a water supply circulation flow loop.
In the above technical solution, preferably, the system further includes a water replenishing system, where the water replenishing system includes a well-side water replenishing pump in fluid communication with the at least one geothermal well and a user-side water replenishing pump in fluid communication with the user air conditioner.
In the above technical solution, preferably, the water tank for storing domestic water further includes a sixth water inlet valve, a sixth water return valve, a seventh water inlet valve, and a seventh water return valve, which are in fluid communication with each other.
In the above technical solution, preferably, a water collector is disposed between the at least one geothermal well and the first water inlet valve, and the water collector is in fluid communication with the air source and the second water inlet valve.
In the above preferred embodiment, it is further preferred that a first mixing pump for providing fluid flow power is disposed between the water collector and the first water inlet valve, and a second mixing pump for providing fluid flow power is disposed between the water collector and the second water inlet valve.
In the above preferred embodiment, it is further preferred that an air source water inlet valve is disposed between the water collector and the air source.
In the above technical solution, preferably, a water separator is disposed between the at least one geothermal well and the first water return valve, and the water separator is in fluid communication with the air source and the second water return valve.
In the above preferred embodiment, it is further preferred that a geothermal circulating pump is disposed between the water separator (the at least one geothermal well), and an air source circulating pump is disposed between the water separator and the air source.
Compared with the prior art, the heat energy utilization system provided by the invention can utilize the geothermal source as a main heat source and is assisted with the air source, so that heating for the user air-conditioning side in winter and cooling and domestic water heating for the user air-conditioning side in summer are realized, and multi-season and multi-functional operation of the system is realized, thereby reducing the application of fossil fuel and protecting the environment.
Drawings
Fig. 1 is a schematic diagram of a geothermal source-air source comprehensive heat energy utilization system according to the present invention.
The marks in the figure:
100. A geothermal source-air source comprehensive heat energy utilization system;
1. A geothermal well; 11. a water collector; 12. a first mixing pump; 13. a first inlet valve; 14. a first water return valve; 15. a second mixing pump; 16. a second inlet valve; 17. a second water return valve; 18. a water separator; 19. a geothermal circulation pump;
2. An air source; 21. an air source circulation pump; 22. an air source cooling valve; 23. a cold supply main valve; 24. a back-cooling main valve; 25. an air source back cooling valve; 26. an air source water inlet valve; 27. an air source water return valve;
3. A first water source unit; 31. a first evaporator; 32. a first condenser; 33. a third water inlet valve; 34. a third water return valve; 35. an air conditioner side circulation pump; 36. a fourth inlet valve; 37. a fourth water return valve;
4. a cooling tower; 41. inlet valve of cooling tower; 42. a water return valve of the cooling tower; 43. a cooling tower circulation pump;
5. A second water source unit; 51. a second evaporator; 52. a second condenser; 53. a sixth water inlet valve; 54. a sixth water return valve;
6. a heat exchanger; 61. a fifth inlet valve; 62. a fifth water return valve; 63. a seventh inlet valve; 64. a seventh water return valve;
7. A water tank; 71. a water side circulation pump;
81. A well side water supplementing pump; 82. and a water supplementing pump at the user side.
Detailed Description
In order to describe the technical content, constructional features, objects and effects of the application in detail, the technical solutions of the embodiments of the application will be described in conjunction with the accompanying drawings in the embodiments of the application, and it is apparent that the described embodiments are only some embodiments of the application, not all embodiments of the application. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the application. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the specific shapes, configurations, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
In the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.
Fig. 1 shows a geothermal source-air source integrated heat energy utilization system 100 (hereinafter referred to as heat energy utilization system 100) according to the present invention, wherein the heat energy utilization system 100 is capable of heating and cooling a user's air conditioning side and heating the user's domestic water in two seasons of winter and summer, respectively. The heat energy utilization system 100 includes a geothermal well 1 as a geothermal source, an air source 2 as an auxiliary heat source, a first water source unit 3, a cooling tower 4 in fluid communication with the first water source unit 3, a second water source unit 5, a heat exchanger 6, a water tank 7 for storing domestic water, and a water replenishing system capable of replenishing water to the geothermal well 1 and the air source 2. The water replenishing system includes a well-side water replenishing pump 81 capable of replenishing water to the geothermal well 1 and a user-side water replenishing pump 82 capable of replenishing water to the user air-conditioning side.
In this embodiment, three geothermal wells 1 are connected in parallel and used as main heat sources of the heat energy utilization system 100, and the geothermal wells 1 are formed by drilling holes into the ground by a large-scale drilling machine. Each geothermal well 1 extends downward from the ground by more than 2400 meters to reach the deep and medium-layer underground rock stratum, and the bottom of each geothermal well 1 can provide a heat source at more than 70 ℃. The heat energy utilization system 100 utilizes a geothermal source by using a closed water cycle to achieve the effect of taking heat without taking water, and to minimize the influence on the environment. In other embodiments, the number of geothermal wells may be determined based on the actual thermal load of the thermal energy utilization system.
The first water source unit 3 includes a first evaporator 31, a first condenser 32, a heat pump (shown in the figure), and the like. The first water source unit 3 transfers heat absorbed by the first evaporator 31 to the first condenser 32 and discharges the heat to the outside through the processes of absorbing heat by the evaporator 31 by using a heat exchange medium, compressing by a heat pump, releasing heat by the condenser 32, diffusing and expanding and the like based on the reverse carnot cycle. The second water source unit 5 includes a second evaporator 51 and a second condenser 52, which have the same working principle and structure as those of the first water source unit 3, and will not be described in detail herein.
A water collector 11, a first mixing pump 12 and a first water inlet valve 13 are also arranged in fluid communication in sequence between the geothermal well 1 and the first evaporator 31. The three geothermal wells 1 are in fluid communication with the air source 2 and provide water to the water collector 11, the first mixing pump 12 is used to transfer water in the water collector 11 into the first evaporator 31 for heat exchange, and the first water inlet valve 13 is capable of switching on and off fluid communication of the first mixing pump 12 with the first evaporator 31. Wherein an air source inlet valve 26 is also arranged between the air source 2 and the water collector 11, the air source inlet valve 26 being capable of switching on and off fluid communication of the air source 2 with the water collector 11.
A second mixing pump 15 and a second inlet valve 16 are also provided in sequential fluid communication between the sump 11 and the second evaporator 51. The second mixing pump 15 is used for conveying the water in the water collector 11 into the second evaporator 51 for heat exchange, and the second water inlet valve 16 can be connected and disconnected with the fluid communication between the second mixing pump 15 and the second evaporator 51. The water of the geothermal well 1 and the air source 2 are subjected to mixed heat exchange in the water collector 11, so that the water temperature of the hot water entering the first evaporator 31 and the second evaporator 51 (the water temperature at the air source 2 is lower than the water temperature at the geothermal well 1) can be reduced while the sufficient water quantity is ensured, thereby reducing the heat transfer temperature difference between the first evaporator 31 and the second evaporator 51, improving the heat transfer efficiency and realizing the multistage effective utilization of geothermal energy.
The thermal energy utilization system 100 is further arranged with a water separator 18, a geothermal circulation pump 19 between the water separator 18 and the geothermal well 1, and an air source circulation pump 21 between the water separator 18 and the air source 2. The first evaporator 31 and the second evaporator 51 are in fluid communication with the water separator 18 through the first water return valve 14 and the second water return valve 17, respectively. Wherein the well side water supplementing pump 81 is in fluid communication with the water separator 18, an air source water return valve 27 is also arranged between the air source 2 and the water separator 18, the air source water return valve 27 being capable of switching on and off the fluid communication of the air source 2 with the water separator 11.
A third water inlet valve 33 and a third water return valve 34 are arranged between the user air conditioning side and the second condenser 32, and the user air conditioning side, the third water inlet valve 33, the second condenser 32 and the third water return valve 34 are sequentially in fluid communication and form a water supply circulation loop. An air conditioning side circulation pump 35 for providing fluid flow power is also disposed between the third water inlet valve 33 and the user air conditioning side. The cooling tower 4 forms a circulation loop through the cooling tower water inlet valve 41, the cooling water return valve 42 and the second condenser 32, and a cooling tower circulation pump 43 for providing fluid flow power is arranged between the cooling tower water inlet valve 42 and the cooling tower 4.
An air source cooling valve 22, a cooling main valve 23, a back cooling main valve 24 and an air source back cooling valve 25 are arranged between the air source 2 and the user air-conditioning side, and the air source 2, the air source cooling valve 22, the cooling main valve 23, the user air-conditioning side, the back cooling main valve 24 and the air source back cooling valve 25 are sequentially in fluid communication and form a water supply circulation flow loop. The first evaporator 31 is in fluid communication with the back cooling main valve 24 and the back cooling main valve 23 via a fourth water inlet valve 36 and a fourth water return valve 37, respectively. Wherein the air source circulation pump 21 is located between the air source 2 and the air source back-cooling valve 25, and the air-conditioning-side circulation pump 35 is located between the back-cooling main valve 24 and the user air-conditioning side.
The heat exchanger 6 is in fluid communication with the water collector 11 and the water separator 16 through a fifth water inlet valve 61 and a fifth water return valve 62, respectively. A water side circulation pump 71, a sixth water inlet valve 53 and a sixth water return valve 54 are arranged between the water tank 7 and the second condenser 52, and the water tank 7, the water side circulation pump 71, the sixth water inlet valve 53, the second condenser 52 and the sixth water return valve 54 are sequentially in fluid communication and form a loop for circulating and flowing the common water. A seventh water inlet valve 63 and a seventh water return valve 64 are arranged between the heat exchanger 6 and the water tank 7 and form a circulation circuit, and a water side circulation pump 71 is positioned between the seventh water inlet valve 63 and the water tank 7.
The following describes the working principle of the heat energy utilization system: when it is necessary to supply heat to the air conditioning side of the user in winter, the air source cooling valve 22, the cooling total valve 23, the cooling total valve 24, the air source cooling valve 25, the fourth water inlet valve 36, the fourth water return valve 37, the cooling tower water inlet valve 41, the cooling tower recovery valve 42, the fifth water inlet valve 61, the fifth water return valve 62, the seventh water inlet valve 63, and the seventh water return valve 64 are sequentially closed, and the remaining valves are opened to start the geothermal circulation pump 19, the air source circulation pump 21, the first mixing pump 12, the second mixing pump 14, the air conditioning side circulation pump 35, and the water side circulation pump 71.
The hot water from the geothermal well 1 and the water from the air source 2 are mixed in the water collector 11, and the hot water in the water collector 11 enters the first evaporator 31 and the second evaporator 51 through the first mixing pump 12 and the second mixing pump 15, respectively, and gives off heat. The first condenser 32 and the second condenser 52 emit heat to the outside, thereby heating the air-conditioning side of the user and heating the domestic water.
When cooling is required on the air conditioning side of the user in summer, the air source cooling valve 22, the cooling main valve 23, the back cooling main valve 24, the air source back cooling valve 25, the fourth water inlet valve 36, the fourth water return valve 37, the cooling tower water inlet valve 41, the cooling tower water return valve 42, the fifth water inlet valve 61, the fifth water return valve 62, the seventh water inlet valve 63 and the seventh water return valve 64 are sequentially opened, the remaining valves are closed, and the geothermal circulation pump 19, the air source circulation pump 21, the first mixing pump 12, the second mixing pump 14, the air conditioning side circulation pump 35 and the water side circulation pump 71 are started.
The air source 2 and the first evaporator 31 serve as cooling on the user air-conditioning side, and reduce the water temperature from the user air-conditioning side. The heat absorbed by the first evaporator 31 is transferred to the cooling tower 4 through the first condenser 32, and is transferred from the cooling tower 4 to the external environment. The geothermal well 1, the water collector 11, the heat exchanger 6 and the water separator 18 are sequentially in fluid communication and form a water supply circulation loop, and the geothermal well 1 supplies heat energy to the heat exchanger 6 and heats domestic water from the water tank 7.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, the scope of which is defined in the appended claims, specification and their equivalents.

Claims (7)

1. A geothermal source-air source integrated heat energy utilization system capable of supplying heat and cold to a user air conditioning side and heating fresh water, the geothermal source-air source integrated heat energy utilization system (100) comprising:
at least one geothermal well (1);
an air source (2), wherein an air source cooling valve (22) and an air source back cooling valve (25) are arranged at the air source (2), and the air source (2), the air source cooling valve (22), the user air-conditioning side and the air source back cooling valve (25) are sequentially in fluid communication and form a water supply circulation flow loop;
The first water source unit (3) comprises a first evaporator (31) and a first condenser (32), wherein a first water inlet valve (13) and a first water return valve (14) are arranged at the first evaporator (31), and the at least one geothermal well (1), the first water inlet valve (13), the first evaporator (31) and the first water return valve (14) are sequentially in fluid communication and form a water supply circulation flow loop; the air source (2), the first water inlet valve (13), the first evaporator (31) and the first water return valve (14) are sequentially in fluid communication and form a water supply circulation flow loop; a third water inlet valve (33) and a third water return valve (34) are arranged at the first condenser (32), and the user air-conditioning side, the third water inlet valve (33), the first condenser (32) and the third water return valve (34) are sequentially in fluid communication and form a water supply circulation flow loop;
The second water source unit (5) comprises a second evaporator (51) and a second condenser (52), a second water inlet valve (16) and a second water return valve (17) are arranged at the second evaporator (51), and the at least one geothermal well (1), the second water inlet valve (16), the second evaporator (51) and the second water return valve (17) are sequentially in fluid communication and form a water supply circulation flow loop; the air source (2), the second water inlet valve (16), the second evaporator (51) and the second water return valve (17) are sequentially in fluid communication and form a water supply circulation flow loop; a sixth water inlet valve (53) and a sixth water return valve (54) are arranged at the second condenser (52), and the sixth water inlet valve (53), the second condenser (52) and the sixth water return valve (54) are sequentially in fluid communication and can supply domestic water to flow; the heat exchanger (6) is provided with a fifth water inlet valve (61), a fifth water return valve (62), a seventh water inlet valve (63) and a seventh water return valve (64), and the at least one geothermal well (1), the fifth water inlet valve (61), the heat exchanger (6) and the fifth water return valve (62) are sequentially in fluid communication and form a water supply circulation flow loop; the seventh water inlet valve (63), the heat exchanger (6) and the seventh water return valve (64) are sequentially in fluid communication and can supply domestic water to flow;
The geothermal well (1) is in fluid communication with the air source (2) and can provide a water source for the water collector (11), a first mixing pump (12) and a first water inlet valve (13) which are sequentially in fluid communication are further arranged between the at least one geothermal well (1) and the first evaporator (31), the first mixing pump (12) is used for conveying water in the water collector (11) into the first evaporator (31) for heat exchange, and the first water inlet valve (13) can be connected and disconnected with the fluid communication between the first mixing pump (12) and the first evaporator (31); an air source water inlet valve (26) is further arranged between the air source (2) and the water collector (11), the air source water inlet valve (26) can be connected and disconnected with the fluid communication between the air source (2) and the water collector (11), a second mixing pump (15) and a second water inlet valve (16) which are sequentially in fluid communication are further arranged between the water collector (11) and the second evaporator (51), the second mixing pump (15) is used for conveying water in the water collector (11) into the second evaporator (51) for heat exchange, and the second water inlet valve (16) can be connected and disconnected with the fluid communication between the second mixing pump (15) and the second evaporator (51).
2. The geothermal source-air source integrated heat energy utilization system according to claim 1, wherein a fourth water inlet valve (36) and a fourth water return valve (37) are further disposed at the first evaporator (31), and the user air conditioning side, the fourth water inlet valve (36), the first evaporator (31) and the fourth water return valve (37) are sequentially in fluid communication and form a water supply circulation loop.
3. The geothermal source-air source integrated heat energy utilization system according to claim 2, further comprising a cooling tower (4), wherein a cooling tower water inlet valve (41) and a cooling tower water return valve (42) are disposed at the cooling tower (4), and the second condenser (32), the cooling tower water inlet valve (41), the cooling tower (4) and the cooling tower water return valve (42) are sequentially in fluid communication and form a water supply circulation loop.
4. A geothermal source-air source integrated thermal energy utilization system according to claim 1 further comprising a water replenishment system comprising a well side water replenishment pump (81) in fluid communication with the at least one geothermal well (1) and a user side water replenishment pump (82) in fluid communication with the user air conditioning side.
5. The geothermal source-air source integrated thermal energy utilization system of claim 1, further comprising a tank (7) for storing domestic water, the tank (7) being in simultaneous fluid communication with the sixth inlet valve (53), the sixth return valve (54), the seventh inlet valve (63), and the seventh return valve (64).
6. The geothermal source-air source integrated thermal energy utilization system according to claim 1, wherein a water separator (18) is arranged between the at least one geothermal well (1) and the first water return valve (14), the water separator (18) being in fluid communication with the air source (2) and the second water return valve (17).
7. The geothermal source-air source comprehensive heat energy utilization system according to claim 6, wherein a geothermal circulating pump (19) is arranged between the water separator (18) and the at least one geothermal well (1), and an air source circulating pump (21) is arranged between the water separator (18) and the air source (2).
CN202210242182.8A 2022-03-11 2022-03-11 Geothermal source-air source comprehensive heat energy utilization system Active CN114646085B (en)

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Citations (2)

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Publication number Priority date Publication date Assignee Title
CN112556040A (en) * 2020-12-05 2021-03-26 万江新能源集团有限公司 Shallow geothermal energy and air source coupling system
CN219530973U (en) * 2023-03-17 2023-08-15 江苏金通灵光核能源科技有限公司 Combined heat supply unit of geothermal source and air heat source

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Publication number Priority date Publication date Assignee Title
CN213514507U (en) * 2020-09-18 2021-06-22 天津大学建筑设计规划研究总院有限公司 Energy system for comprehensively utilizing various energy sources

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112556040A (en) * 2020-12-05 2021-03-26 万江新能源集团有限公司 Shallow geothermal energy and air source coupling system
CN219530973U (en) * 2023-03-17 2023-08-15 江苏金通灵光核能源科技有限公司 Combined heat supply unit of geothermal source and air heat source

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