CN212777726U - Air conditioning system of middle-deep buried pipe combined cooling tower - Google Patents
Air conditioning system of middle-deep buried pipe combined cooling tower Download PDFInfo
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- CN212777726U CN212777726U CN202021691185.2U CN202021691185U CN212777726U CN 212777726 U CN212777726 U CN 212777726U CN 202021691185 U CN202021691185 U CN 202021691185U CN 212777726 U CN212777726 U CN 212777726U
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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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Abstract
The utility model relates to an air conditioning system of cooling tower is united to middle and deep buried pipe, including bushing type buried pipe heat exchanger, cooling tower, heat pump set, building end equipment etc, bushing type buried pipe heat exchanger includes drilling, sleeve pipe, backfill material an, backfill material b and underground circulation liquid, it flows to carry out heat transfer and realizes the heat supply to have circulation liquid between buried pipe heat exchanger and heat pump set or the building end equipment, it realizes the refrigeration to have cooling water circulation liquid to carry out heat transfer between cooling tower and the heat pump set, it supplies cold or heat supply to have indoor circulation liquid to flow transfer heat between heat pump set and the room end. And each connecting pipeline is provided with a water pump, a thermometer and a flowmeter. The cooling tower is adopted for refrigeration, and the sleeve type buried pipe heat exchanger is adopted for heating, so that the utilization effect of the geothermal energy of the middle and deep layers is improved, and the comprehensive utilization of heating and refrigeration is realized.
Description
Technical Field
The utility model belongs to the technical field of air conditioning system, concretely relates to air conditioning system of combined cooling tower of middle and deep layer buried pipe.
Background
The ground source heat pump system consists of a ground heat exchanger, a heat pump unit and indoor tail end equipment, wherein the ground heat exchanger is a main mark of the ground source heat pump which is different from other types of heat pumps. The ground source heat pump technology has the characteristics of energy conservation and environmental protection, and belongs to a clean energy air conditioning system. In recent years, mid-depth borehole heat exchangers have been explored and applied to systems where mid-depth geothermal energy increases the borehole depth to 1500-3000m on the basis of shallow geothermal energy, and the borehole diameter is also larger than the shallow borehole diameter. Since the depth of the shallow buried pipe is usually between 50 and 200m, the distance from the ground is shallow, the temperature gradient of the underground medium is negligible, but the geothermal energy of the middle and deep layers needs to consider large geothermal heat flow, the large geothermal heat flow refers to the heat transferred from the earth interior to the ground surface, the transfer quantity can be expressed by the heat of unit area, and the common unit is milliwatt per square meter (mW/m)2). The temperature of underground medium is gradually increased along the depth direction due to the existence of large geothermal flow, the heat supply capacity of the buried pipe heat exchanger is greatly enhanced, the occupied area of the buried pipe is greatly reduced, the temperature of the available soil is obviously increased, the underground temperature is basically stable, the buried pipe heat exchanger is suitable for the condition of single heat supply, and one drilled hole buried pipe heat exchanger can supply heat for thousands of buildings with square meters or more.
Researchers have studied the heating condition of underground water, and the underground water is used as a heat source for heating, which is called a hydrothermal type medium-deep geothermal system, and the main problems of the hydrothermal type are that a water source is needed, and extraction and recharge of the underground water easily destroy the stratum, cause pollution to the underground water quality and influence the biochemical characteristics of the underground water. Compared with a hydrothermal type middle-deep geothermal system, the technology of the middle-deep geothermal pipe heat exchanger adopts a closed type buried pipe circulating system, namely circulating liquid circularly flows in the heat exchange pipe and is not in direct contact with underground media and the like, so that the restriction on geological conditions is less, and the system can be flexibly applied to various geological conditions. Direct contact or mass transfer of the open system with the groundwater or rock formation is avoided, thereby avoiding the biochemical impact on the groundwater.
In the application of the heat exchanger of the buried pipe in the middle and deep layers, the most important mode is a sleeve type heat exchanger of the buried pipe, namely, the round vertical pipes with the same circle center are nested inside and outside, the outer pipe and the inner pipe are respectively a steel pipe and a plastic pipe, the steel pipe has larger heat conductivity coefficient and high hardness, is beneficial to the heat exchange between circulating liquid in the pipe and underground media, and can play a good role in fixing as a protective part outside the sleeve. Circulating liquid flows into the sleeve from a gap between the inner pipe and the outer pipe, and returns to flow out from the inner pipe after exchanging heat with an underground medium; because the inner pipe adopts a plastic pipeline, the heat conductivity coefficient is small, and the heat preservation effect is achieved to a certain degree.
Although the double-pipe type ground heat exchanger realizes effective utilization of the geothermal energy in the middle and deep layers, for an air conditioning system, the double-pipe type ground heat exchanger needs to meet the requirements of energy supply for refrigeration and heating, and the double-pipe type ground heat exchanger can only supply heat and cannot realize refrigeration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned prior art not enough, provide an air conditioning system of combined cooling tower of middle and deep buried pipe, adopt the cooling tower to refrigerate, adopt bushing type buried pipe heat exchanger to heat, both improved the utilization effect of middle and deep geothermal energy, realized the refrigerated comprehensive utilization of heat supply again.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an air conditioning system of a middle-deep buried pipe combined cooling tower comprises a sleeve type buried pipe heat exchanger, a cooling tower, a heat pump unit and a building end device, wherein a cooling water pipeline is connected between the cooling tower and the heat pump unit, a valve, a circulating water pump, a flowmeter and a thermometer are arranged on a cooling water outlet side of the cooling tower, the thermometer and the valve are arranged on an inlet side of the cooling tower, an underground circulating liquid pipeline is connected between the sleeve type buried pipe heat exchanger and the heat pump unit, the thermometer and the flowmeter are arranged on an underground circulating liquid outlet side of the sleeve type buried pipe heat exchanger, and the thermometer and the circulating water pump are arranged on an underground circulating liquid inlet side of the sleeve type buried pipe heat exchanger; the heat pump unit and the end equipment in the building are connected with pipelines, a thermometer and a flowmeter are arranged on the circulating liquid of the end equipment at the inlet side of the heat pump unit, and a thermometer and a circulating water pump are respectively arranged on the circulating liquid of the end equipment at the outlet side of the heat pump unit;
the circulating liquid circularly flows between the sleeve and the heat pump unit or the terminal equipment of the building to transfer heat, the cooling tower and the heat pump unit transfer heat through cooling water circulating liquid, and indoor circulating liquid flows between the heat pump unit and the terminal equipment of the room of the building to transfer heat;
a water pump is arranged between the cooling tower and the heat pump unit to control the size of water flow, and a thermometer and a flowmeter are arranged to observe the temperature and the flow and calculate the heat dissipation capacity of cooling water circulation liquid in the cooling tower;
and a water pump is arranged on a connecting pipeline between the sleeve type buried pipe heat exchanger and the heat pump unit to control the size of water flow. A thermometer and a flowmeter are arranged, the temperature and the flow can be observed, and the heat extraction quantity of the circulating liquid from the double-pipe heat exchanger can be calculated;
a water pump is arranged on a connecting pipeline between the building end equipment and the heat pump unit to control the size of water flow, and a thermometer and a flowmeter are arranged to observe the temperature and the flow and calculate the heat absorption capacity or the heat release capacity of the room end equipment;
further, the casing pipe type ground heat exchanger consists of a casing pipe inner pipe, a casing pipe outer pipe, a drill hole, a backfill material a and a backfill material b, wherein the casing pipe inner pipe and the casing pipe outer pipe have the same central axis and are nested inside and outside, the backfill material a and the backfill material b are arranged between the drill hole and the casing pipe outer pipe, and the backfill materials a and b are generally cement materials with different heat conductivity coefficients;
the backfill material a has a lower heat conductivity coefficient and seepage-proof pressure resistance, is arranged above the backfill material b and reaches a certain shallow layer position below the ground so as to prevent reverse heat transfer in a shallow layer area due to continuous rise of temperature when underground circulating liquid flows upwards from the inner pipe, has a higher heat conductivity coefficient and seepage-proof pressure resistance, and is arranged between the wall of the drilled hole and the outer pipe to play roles in enhancing heat transfer and sealing and resisting seepage.
Furthermore, the sleeve inner pipe and the sleeve outer pipe are arranged in a drill hole of the sleeve type buried pipe heat exchanger, the sleeve and the wall of the drill hole are respectively provided with a backfill material a and a backfill material b from top to bottom, underground circulating liquid flows in from an annular gap between the outer pipe and the inner pipe, flows upwards along the inner pipe after reaching the bottom of the gap of the sleeve until flowing out of the sleeve, and fully absorbs the energy of underground media to supply heat.
Further, the depth of the double-pipe heat exchanger is 1500m-3000 m;
furthermore, the heat pump unit and the pipeline of the buried pipe in the middle and deep layers form a closed system;
further, the heat pump unit and the pipeline of the terminal equipment form a closed system;
furthermore, pipelines of the heat pump unit and the cooling tower form a closed system;
further, the double-pipe type ground heat exchanger is positioned in underground media below the ground;
further, underground circulating liquid flows in the gap between the inner pipe of the casing and the outer pipe of the casing;
further, the heat pump unit flows indoor circulating liquid through a pipeline connected with end equipment in a building;
furthermore, a flow meter and two valves are arranged at the outlet end of the sleeve type ground pipe heat exchanger for the circulating liquid of the terminal equipment, and one of the two valves is positioned on a pipeline connected with the cooling tower and the sleeve type ground pipe heat exchanger;
furthermore, a valve and a water pump are arranged on the cooling water of the cooling tower at the inlet side of the heat pump unit;
furthermore, valves are arranged on pipelines connected with the tail end equipment, the cooling tower and the sleeve type buried pipe heat exchanger, and pipelines close to one side of the heat pump unit;
furthermore, a valve is arranged between a valve on a pipeline at the inlet ends of the heat pump unit and the cooling water of the cooling tower and the thermometer, and the valve is arranged on a pipeline at the outlet end of the heat pump unit;
furthermore, two valves are arranged between a thermometer on the cooling water outlet side of the cooling tower and a flowmeter on the underground circulating liquid outlet side of the sleeve type buried pipe heat exchanger, and are respectively arranged on a pipeline passing through the heat pump unit and a pipeline on the cooling water outlet end of the cooling tower.
Adopt the technical scheme of the utility model, when refrigerating in summer, the cooling water brings the heat of ground source heat pump set transmission into the cooling tower release, and when heating in winter, carries out the valve and switches, and the circulating liquid of middle-deep layer ground heat exchanger is connected with ground source heat pump set. In order to enhance heat exchange, circulating liquid flows in from the gap between the outer pipe and the inner pipe of the double-pipe heat exchanger, returns from the inner pipe after reaching the bottom, and flows out of the inner pipe to enter a ground source heat pump unit or terminal equipment of a building. The heat supply mode can be determined according to the temperature of the outflow sleeve, if the temperature of the fluid is high, the fluid can directly enter a building for heating, if the temperature of the fluid is not high, the fluid enters a heat pump unit, and the heat pump unit raises the heat and then transfers the heat to the fluid entering the terminal equipment of the building.
The specific embodiment of the utility model obtains following technological effect at least:
(1) by adopting the sleeve type heat exchanger of the buried pipe in the middle-deep layer, the circulating liquid flows into the sleeve from the gap between the inner pipe and the outer pipe, sequentially flows through the annular gap and the inner pipe, and finally flows out of the sleeve. The circulation liquid exchanges heat with a medium with higher temperature underground, so that more underground heat is absorbed, the drilling area can be saved, and the building area is heated. Meanwhile, as the outlet water temperature of the circulating liquid is higher, the circulating liquid can directly enter a room for heating at some time, and the energy consumption is further saved;
(2) the cooling tower device is adopted to release the heat of the building in summer so as to realize refrigeration. The cooling tower is matched with a middle-deep buried pipe to form a comprehensive air conditioning system for heating and refrigerating;
(3) simple structure and convenient assembly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of an air conditioning system of a mid-deep buried pipe combined cooling tower according to the present invention;
in the figure: 1. sleeving an inner pipe; 2. a casing outer tube; 3. a ground surface; 4. backfilling material a; 5. backfilling material b; 6. a rock-soil layer; 7. drilling; 8. a water pump; 9. a thermometer; 10. a valve; 11. a valve; 12. a flow meter; 13. a building; 14. a terminal device; 15. a water pump; 16. a valve; 17. a valve; 18. a valve; 19. a valve; 20. a thermometer; 21. a flow meter; 22. a water pump; 23. a thermometer; 24. a valve; 25. a heat pump unit; 26. a valve; 27. a thermometer; 28. a valve; 29. a cooling tower; 30. a valve; 31. a water pump; 32. a flow meter; 33. a thermometer; 34. a valve; 35. a valve; 36. a flow meter; 37. a thermometer.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In a typical embodiment of the present invention, as shown in fig. 1, an air conditioning system of a mid-deep buried pipe combined cooling tower comprises a casing pipe type buried pipe heat exchanger, a cooling tower 29, a heat pump unit 25 and a building end device 14, wherein the casing pipe type buried pipe heat exchanger comprises a casing pipe inner pipe 1, a casing pipe outer pipe 2, a borehole 7, (backfill material a)4, (backfill material b)5, the depth range of the borehole 7 is between 1500m and 3000m, and underground circulation fluid sequentially flows through a gap between the casing pipe inner pipe 1 and the casing pipe 2 and the inner pipe 1, so as to realize heat exchange with an underground medium; a circulating water pump 8, thermometers 9 and 37 and a flowmeter 36 are arranged on a pipeline between the sleeve type buried pipe heat exchanger and the heat pump unit 25 and the end equipment 14, the circulating water pump 8 is used for controlling the flow rate of circulating liquid, the flowmeter 36 is used for testing the flow rate value of the circulating liquid, and the thermometers 9 and 37 are respectively used for measuring the outlet temperature and the inlet temperature of the fluid flowing through the heat pump unit 25 or the end equipment 14 of the building. The heat quantity absorbed by the circulating liquid from the underground can be calculated through the tested flow quantity of the circulating liquid and the temperature of the inlet and the outlet.
For the drill hole 7 and the casing, two backfill materials are arranged between the hole wall and the casing outer pipe 2, the backfill materials with poor heat conduction performance and good seepage-proof and pressure-proof effects are arranged at a certain depth from the ground to the underground, the backfill materials play a role in heat preservation, the circulating liquid is prevented from being heated continuously due to heat absorption to generate reverse heat transfer in a shallow underground area, and the backfill materials with good heat conduction performance and good seepage-proof and pressure-proof effects are arranged from the depth to the bottom of the drill hole, so that the heat absorption of the circulating liquid is facilitated. A circulating water pump 22, thermometers 20 and 23 and a flowmeter 21 are arranged on a connecting pipeline between a heat pump unit 25 and the building room end equipment 14, the circulating water pump 22 is used for controlling the flow of circulating liquid, the flowmeter 21 is used for testing the flow value of the circulating liquid, and the thermometers 20 and 23 are used for measuring the inlet and outlet temperatures of fluid flowing through the heat pump unit; the heat dissipation capacity of the circulating liquid at the tail end equipment can be calculated by testing the flow rate of the circulating liquid and the inlet and outlet temperatures.
A circulating water pump 31, temperature gauges 27 and 33 and a flow meter 32 are arranged on a connecting pipeline between the cooling tower 29 and the heat pump unit 25, the circulating water pump 31 is used for controlling the flow rate of circulating liquid, the flow meter 32 is used for testing the flow rate value of the circulating liquid, and the temperature gauges 27 and 33 are used for measuring the inlet and outlet temperatures of fluid flowing through the cooling tower 29; the heat dissipation capacity of the cooling water circulation liquid in the cooling tower can be calculated by testing the flow rate of the circulation liquid and the inlet and outlet temperatures.
When the sleeve type buried pipe heat exchanger and underground medium perform sufficient heat exchange and flow out of the inner pipe, if the temperature of the circulating liquid is higher at the moment and meets the temperature requirement of directly entering the tail end equipment 14 for heating, the circulating liquid directly enters the tail end equipment 14 of the building for heat dissipation without entering the heat pump unit 25; if the temperature of the circulating liquid is not high, the circulating liquid needs to enter the heat pump unit 25, and heat is lifted by the heat pump unit 25 and is transferred to the circulating liquid between the end device 14 and the heat pump unit 25.
Adopt the technical scheme of the utility model, when refrigerating in summer, the heat that cooling water will ground source heat pump set 25 transmission is brought into the release of cooling tower 29, and when heating in winter, carries out the valve and switches, and the circulating liquid of middle and deep layer ground heat exchanger is connected with ground source heat pump set 25. In order to enhance heat exchange, circulating liquid flows in from the gap between the outer pipe 2 and the inner pipe 1 of the double-pipe heat exchanger, returns from the inner pipe 1 after reaching the bottom, and flows out of the inner pipe 1 to enter the ground source heat pump unit 25 or the end equipment 14 of the building 13. The heat supply mode can be determined according to the temperature of the outflow sleeve, if the temperature of the fluid is high, the fluid can directly enter a building for heating, if the temperature of the fluid is not high, the fluid enters the heat pump unit 25, and the heat pump unit 25 raises the heat and then transfers the heat to the fluid entering the terminal equipment 14 of the building.
The working principle is as follows: during cooling in summer, the valves 26, 28, 30 and 34 are opened, the valves 10 and 35 are closed, under the driving of the circulating water pump 31, the cooling water circulating liquid moves to and fro between the cooling tower 29 and the heat pump unit 25 to transfer heat, the valves 17, 18, 19 and 24 are opened, the valves 11 and 16 are closed, and the indoor circulating liquid moves to and fro between the terminal equipment 14 and the heat pump unit 25 to transfer heat.
During winter heating, valves 26, 28, 30 and 34 are closed, valves 10 and 35 are opened, and valves 17 and 18 are opened. When the temperature of the underground circulating liquid of the double-pipe heat exchanger is higher, the valves 19 and 24 are closed, the valves 11 and 16 are opened, the water pump 15 is started, the circulating liquid directly enters terminal equipment of a room for heat dissipation and heating, the flow is detected again through the flowmeter 12, and meanwhile, the circulating liquid water pump 22 of the original terminal equipment stops running; when the temperature of underground circulating liquid of the double-pipe heat exchanger is not high, the valves 11 and 16 are closed, the valves 19 and 24 are opened, the water pump 15 is closed, the water pump 22 is opened, the circulating liquid enters the heat pump unit and exchanges heat with refrigerant of the heat pump unit, and the heat pump unit transfers heat to the circulating liquid entering the room terminal equipment.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. The air conditioning system of the middle-deep buried pipe combined cooling tower is characterized by comprising a sleeve type buried pipe heat exchanger, a cooling tower, a heat pump unit and a building tail end device, wherein a cooling water pipeline is connected between the cooling tower and the heat pump unit, a valve, a circulating water pump, a flowmeter and a thermometer are arranged on a cooling water outlet side of the cooling tower, the thermometer and the valve are arranged on an inlet side of the cooling tower, an underground circulating liquid pipeline is connected between the sleeve type buried pipe heat exchanger and the heat pump unit, the thermometer and the flowmeter are arranged on an underground circulating liquid outlet side of the sleeve type buried pipe heat exchanger, and the thermometer and the circulating water pump are arranged on an underground circulating liquid inlet side of the sleeve type buried pipe heat exchanger; the circulating liquid of the end equipment is provided with a thermometer and a flowmeter at the inlet side of the heat pump unit, and the circulating liquid of the end equipment is provided with a thermometer and a circulating water pump at the outlet side of the heat pump unit.
2. An air conditioning system for a mid-deep buried pipe combined cooling tower as claimed in claim 1, wherein the pipe-in-pipe heat exchanger is composed of an inner pipe of a casing, an outer pipe of a casing, a borehole, backfill material a and backfill material b, the inner and outer pipes having the same central axis and being nested inside and outside.
3. The system of claim 2, wherein a backfill material a and a backfill material b are respectively disposed between the outer casing pipe and the borehole wall from top to bottom.
4. An air conditioning system for a mid-deep buried pipe combined cooling tower as claimed in claim 2, wherein the backfill materials a and b are cement materials having different thermal conductivity coefficients.
5. The air conditioning system of the mid-deep buried pipe combined cooling tower as claimed in claim 1, wherein a closed system is formed between the heat pump unit and the pipeline of the mid-deep buried pipe; the heat pump unit and the pipeline of the tail end equipment form a closed system, and the heat pump unit and the pipeline of the cooling tower form a closed system.
6. An air conditioning system for a mid-deep borehole combined cooling tower according to claim 1, in which the tube-in-tube heat exchanger is located in the subsurface medium below ground level.
7. An air conditioning system for a buried pipe combined cooling tower as claimed in claim 1 wherein the circulating fluid of the terminal equipment is provided with a flow meter and valve at the outlet end of the pipe-in-pipe heat exchanger.
8. An air conditioning system of a mid-deep buried pipe combined cooling tower as claimed in claim 1, wherein the circulating liquid of the buried pipe is provided with a valve and a water pump at the inlet side of the end equipment.
9. An air conditioning system for a mid-deep buried pipe combined cooling tower as claimed in claim 1, wherein the heat pump unit is connected to the end equipment, the cooling tower and the pipe-in-pipe heat exchanger, and a valve is provided on the pipe close to the heat pump unit.
10. An air conditioning system for a mid-deep buried pipe combined cooling tower as claimed in claim 1, wherein two valves are provided between the thermometer on the cooling water outlet side of the cooling tower and the flowmeter on the underground circulating liquid outlet side of the casing-in-pipe type buried pipe heat exchanger, respectively, on the pipeline at the outlet end of the circulating liquid in the buried pipe heat exchanger and the pipeline at the cooling water outlet end of the cooling tower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021691185.2U CN212777726U (en) | 2020-08-13 | 2020-08-13 | Air conditioning system of middle-deep buried pipe combined cooling tower |
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| CN202021691185.2U CN212777726U (en) | 2020-08-13 | 2020-08-13 | Air conditioning system of middle-deep buried pipe combined cooling tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203213A (en) * | 2021-04-07 | 2021-08-03 | 太原理工大学 | Novel ground source heat pump system of artificial aquifer combined with shallow coaxial sleeve |
| CN114001493A (en) * | 2021-12-06 | 2022-02-01 | 深能科技(西安)有限公司 | Zero-carbon cold and heat supply system and method based on renewable energy coupling application |
| CN114585240A (en) * | 2022-04-02 | 2022-06-03 | 北京有竹居网络技术有限公司 | Data center waste heat utilization system |
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2020
- 2020-08-13 CN CN202021691185.2U patent/CN212777726U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203213A (en) * | 2021-04-07 | 2021-08-03 | 太原理工大学 | Novel ground source heat pump system of artificial aquifer combined with shallow coaxial sleeve |
| CN114001493A (en) * | 2021-12-06 | 2022-02-01 | 深能科技(西安)有限公司 | Zero-carbon cold and heat supply system and method based on renewable energy coupling application |
| CN114585240A (en) * | 2022-04-02 | 2022-06-03 | 北京有竹居网络技术有限公司 | Data center waste heat utilization system |
| CN114585240B (en) * | 2022-04-02 | 2023-09-22 | 北京有竹居网络技术有限公司 | Data center waste heat utilization system |
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