CN222527989U

CN222527989U - Ground source heat pump system

Info

Publication number: CN222527989U
Application number: CN202420673233.7U
Authority: CN
Inventors: 王炳超; 蒙玉宝; 刘石磊
Original assignee: Wuhan Eve Energy Storage Co ltd
Current assignee: Wuhan Eve Energy Storage Co ltd
Priority date: 2024-04-02
Filing date: 2024-04-02
Publication date: 2025-02-25
Anticipated expiration: 2034-04-02

Abstract

The utility model provides a ground source heat pump system, the energy storage power station includes multiple energy storage cabinets, each energy storage cabinet is provided with a heat exchanger, and the ground source heat pump system includes: a heat pump air conditioner; a liquid inlet pipeline, one end of the liquid inlet pipeline is connected to the input end of the heat exchanger of the multiple energy storage cabinets, and the other end of the liquid inlet pipeline is arranged in the output end of the heat pump air conditioner; a liquid outlet pipeline, one end of the liquid outlet pipeline is connected to the output end of the heat exchanger of the multiple energy storage cabinets, and the other end of the liquid outlet pipeline is arranged in the input end of the heat pump air conditioner; wherein the multiple heat exchangers, the liquid inlet pipeline and the liquid outlet pipeline together form a first loop. The application of the technical solution of the utility model can improve the technical problem of high cost in the related technology.

Description

Ground source heat pump system

Technical Field

The utility model relates to the technical field of ground source heat pumps, in particular to a ground source heat pump system.

Background

The ground source heat pump is a high-efficiency energy-saving air conditioning system which can refrigerate and supply heat by utilizing the earth surface or shallow water source. The heat pump technology is a technology of flowing heat from a low-level heat source to a high-level heat source under the dragging of high-level energy, and the ground source heat pump system performs heat exchange between circulating liquid circulating in a closed heat exchange tube and a stratum, absorbs heat in winter and dissipates heat in summer.

In the related art, each energy storage cabinet of the energy storage power station is provided with an independent split air conditioner, so that the cost of temperature control is increased, and meanwhile, the overhaul and maintenance of an air conditioning system are inconvenient, so that the operation efficiency of the energy storage power station can be influenced.

Disclosure of utility model

The embodiment of the utility model provides a ground source heat pump system which can improve the technical problem of high cost in the related technology.

The embodiment of the utility model provides a ground source heat pump system, which comprises a plurality of energy storage cabinets, wherein heat exchange pieces are arranged in each energy storage cabinet, the ground source heat pump system comprises a heat pump air conditioner, a liquid inlet pipeline, a liquid outlet pipeline and a first loop, wherein one end of the liquid inlet pipeline is communicated with the input ends of the heat exchange pieces of the plurality of energy storage cabinets, the other end of the liquid inlet pipeline is arranged in the output end of the heat pump air conditioner, one end of the liquid outlet pipeline is communicated with the output ends of the heat exchange pieces of the plurality of energy storage cabinets, and the other end of the liquid outlet pipeline is arranged in the input end of the heat pump air conditioner, and the plurality of heat exchange pieces, the liquid inlet pipeline and the liquid outlet pipeline jointly form the first loop.

In one embodiment, the heat pump air conditioner comprises a heat pump host and a geothermal energy unit, wherein the geothermal energy unit is provided with a second loop, the heat pump host is provided with a first heat exchanger and a second heat exchanger, the heat pump host exchanges heat with liquid in a liquid inlet pipeline and a liquid outlet pipeline through the first heat exchanger, and the heat pump host exchanges heat with the geothermal energy unit through the second heat exchanger.

In one embodiment, the heat pump host also comprises a compressor, a four-way valve and a throttle valve, wherein the compressor, the four-way valve and the throttle valve form a third loop together, the third loop exchanges heat with the first loop through the first heat exchanger, and the third loop exchanges heat with the second loop through the second heat exchanger.

In one embodiment, the geothermal energy set comprises a buried pipe buried in the surface layer.

In an embodiment, the geothermal energy set further comprises a first water pump, a first filter and a first one-way valve, and the first water pump, the first filter, the buried pipe and the first one-way valve together form a second loop.

In an embodiment, the feed liquor pipeline includes total feed liquor pipe and a plurality of feed liquor branch pipes that are linked together with total feed liquor pipe, and the drain pipeline includes total drain pipe and a plurality of drain branch pipes that are linked together with total drain pipe, and the both ends of heat transfer piece are linked together and the setting of one-to-one with feed liquor branch pipe and drain branch pipe respectively, and the heat pump air conditioner can carry out the heat exchange with the liquid in total feed liquor pipe and the total drain pipe.

In an embodiment, the ground source heat pump system further includes a second water pump, a second filter, and a second check valve, where the second water pump, the second filter, the ground pipe, the second check valve, the plurality of heat exchange elements, the liquid inlet pipeline, and the liquid outlet pipeline together form a second loop.

In an embodiment, the outer sides of the liquid inlet pipeline and the liquid outlet pipeline are wrapped with heat preservation pieces.

In one embodiment, the liquid in the first circuit comprises ethylene glycol.

In one embodiment, the diameter of the total liquid inlet pipe is larger than the diameter of the liquid inlet branch pipe, and the diameter of the total liquid outlet pipe is larger than the diameter of the liquid outlet branch pipe.

By adopting the technical scheme, the heat exchange pieces, the liquid inlet pipeline and the liquid outlet pipeline form the first loop together, the heat pump air conditioner can improve or reduce the temperature in the energy storage cabinets by performing heat exchange with the liquid in the first loop, and the heat pump air conditioner can realize the temperature adjustment of the energy storage cabinets by performing heat exchange with the liquid in the liquid inlet pipeline and the liquid outlet pipeline only by adopting the structure, so that excessive air conditioner components are not needed, and the cost of temperature control can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a ground source heat pump system and an energy storage cabinet according to an embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of a liquid inlet pipeline, a liquid outlet pipeline and a heat pump host according to an embodiment of the present utility model;

Fig. 3 is a schematic structural diagram of a ground source heat pump system according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

1. A heat pump air conditioner;

10. 11, a heat exchange piece;

21. a main liquid inlet pipe 22, a liquid inlet branch pipe;

31. A main liquid outlet pipe, a 32 liquid outlet branch pipe;

40. the heat pump comprises a heat pump host, 41, a first heat exchanger, 42, a second heat exchanger, 43, a compressor, 44, a four-way valve, 45 and a throttle valve;

50. The system comprises a geothermal energy unit, a buried pipe, a first water pump, a first filter, a first check valve and a second check valve, wherein the geothermal energy unit comprises a buried pipe, a first water pump, a first filter and a first check valve;

61. the second water pump, 62, the second filter, 63, the second check valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

As shown in fig. 1 to 3, the embodiment of the utility model provides a ground source heat pump system, wherein an energy storage power station comprises a plurality of energy storage cabinets 10, heat exchange pieces 11 are arranged in each energy storage cabinet 10, the ground source heat pump system comprises a heat pump air conditioner, a liquid inlet pipeline, a liquid outlet pipeline and a first loop, one end of the liquid inlet pipeline is communicated with the input ends of the heat exchange pieces 11 of the plurality of energy storage cabinets 10, the other end of the liquid inlet pipeline is arranged in the output end of the heat pump air conditioner, one end of the liquid outlet pipeline is communicated with the output ends of the heat exchange pieces 11 of the plurality of energy storage cabinets 10, and the other end of the liquid outlet pipeline is arranged in the input end of the heat pump air conditioner, wherein the plurality of heat exchange pieces 11, the liquid inlet pipeline and the liquid outlet pipeline jointly form the first loop.

By applying the technical scheme of the utility model, the plurality of heat exchange pieces 11, the liquid inlet pipeline and the liquid outlet pipeline form the first loop together, the heat pump air conditioner 1 can improve or reduce the temperature in the energy storage cabinet 10 by performing heat exchange with the liquid in the first loop, and the heat pump air conditioner 1 can realize the temperature adjustment of the plurality of energy storage cabinets 10 by performing heat exchange with the liquid in the liquid inlet pipeline and the liquid outlet pipeline through the structure, so that excessive air conditioning components are not needed, and the cost of temperature control can be reduced.

In the present application, the heat pump air conditioner increases or decreases the temperature in the energy storage cabinet 10 by exchanging heat with the liquid in the first circuit, so that the energy storage cabinet 10 can be ensured to operate at a safe and stable temperature.

Further, the liquid inlet pipeline comprises a total liquid inlet pipe 21 and a plurality of liquid inlet branch pipes 22 communicated with the total liquid inlet pipe 21, the liquid outlet pipeline comprises a total liquid outlet pipe 31 and a plurality of liquid outlet branch pipes 32 communicated with the total liquid outlet pipe 31, the heat exchange pieces 11, the liquid inlet branch pipes 22 and the liquid outlet branch pipes 32 are arranged in one-to-one correspondence, two ends of the heat exchange pieces 11 are respectively communicated with the liquid inlet branch pipes 22 and the liquid outlet branch pipes 32, and the heat pump air conditioner 1 can exchange heat with liquid in the total liquid inlet pipe 21 and the total liquid outlet pipe 31. Through setting up above-mentioned structure, heat pump air conditioner 1 only need with total feed liquor pipe 21 and total drain pipe 31 in the liquid carry out the heat exchange can realize carrying out temperature control to a plurality of energy storage cabinets 10, so can reduce the manufacturing cost of device to the batch installation of device of being convenient for.

Specifically, the heat pump air conditioner 1 comprises a heat pump main machine 40 and a ground energy unit 50, wherein the ground energy unit 50 is provided with a second loop, the heat pump main machine 40 is provided with a first heat exchanger 41 and a second heat exchanger 42, the heat pump main machine 40 exchanges heat with liquid in a total liquid inlet pipe and a total liquid outlet pipe through the first heat exchanger 41, and the heat pump main machine 40 exchanges heat with the ground energy unit 50 through the second heat exchanger 42. Through setting up above-mentioned structure, utilize the earth's surface energy can realize the heat exchange with the heat exchanger to can utilize green energy to carry out temperature control to energy storage cabinet 10, not only can carry out certain protection to the environment, can realize green energy's environmental protection demand, also can reduce temperature control's cost simultaneously, and the earth's energy unit 50 is longer in general life, consequently also can correspondingly save maintenance cost.

Further, the heat pump host 40 further comprises a compressor 43, a four-way valve 44 and a throttle valve 45, wherein the compressor 43, the four-way valve 44 and the throttle valve 45 together form a third loop, the third loop exchanges heat with the first loop through the first heat exchanger 41, and the third loop exchanges heat with the second loop through the second heat exchanger 42. The compressor 43 can perform work on the refrigerant in the third circuit so as to exchange heat between the temperature of the second circuit and the temperature in the first circuit.

Specifically, the geothermal energy set 50 includes a buried pipe 51, and the buried pipe 51 is buried in the ground surface layer. In the application, the buried pipe 51 is arranged in soil to exchange heat with the soil, a plurality of mounting holes are arranged in the soil, and concretely, the buried pipe 51 can comprise a plurality of groups of double U-shaped buried pipes arranged in the mounting holes, each double U-shaped buried pipe comprises a U-shaped elbow and a corrugated heat exchange pipe, the end parts of the elbows are respectively provided with a heat exchange pipe, and a filler is filled between the heat exchange pipe and the wall of the mounting hole. The heat exchange tube is a vertical heat exchange tube, in this embodiment, the heat exchange tube is made of a novel material with corrosion resistance, high thermal conductivity and light weight, and is corrugated, so that the heat exchange area is increased, and the heat exchange capability of the ground buried tube 51 is improved when the ground source heat pump host 40 is used. Specifically, the elbow sets up in the bottom of mounting hole, and the elbow is as the accessory of connecting the heat exchange tube, and after perpendicular heat exchange tube and elbow installation were accomplished, immediately with compound backfill hole sealing, compound backfill adopts the mixed thick liquid of magma, bentonite and fine sand (or cement), later adopts high-pressure slush pump bottom mud jacking recharge to guarantee the compactibility of backfilling. The heat conductivity coefficient of the filler material is larger than or equal to that of the soil, so that the heat exchange efficiency of water and the soil in the heat exchange tube can be prevented from being influenced.

Further, the geothermal energy set 50 further includes a first water pump 52, a first filter 53 and a first check valve 54, and the first water pump 52, the first filter 53, the buried pipe 51 and the first check valve 54 together form a second loop.

Specifically, the ground source heat pump system further includes a second water pump 61, a second filter 62, and a second check valve 63, where the second water pump 61, the second filter 62, the buried pipe 51, the second check valve 63, the plurality of heat exchange elements 11, the liquid inlet pipe, and the liquid outlet pipe together form a second loop.

In the present application, the compressor 43 performs work on the refrigerant during cooling in summer, and performs vapor-liquid conversion. Heat is absorbed into the refrigerant by evaporation of the refrigerant, and the low-temperature low-pressure gaseous refrigerant is changed into a high-temperature high-pressure gaseous refrigerant. And condensing in the ground source side heat exchanger by utilizing the low temperature in the depth of the ground. Heat is transferred to the ground source side.

In winter heating, the refrigerant is heated and evaporated into gas, and then the compressor 43 works on the refrigerant to change the low-temperature low-pressure gaseous refrigerant into high-temperature high-pressure gaseous refrigerant. Condensed in the first heat exchanger 41, transferring heat to the first circuit.

Further, the outside of feed liquor pipeline and play liquid pipeline all wraps up there is the heat preservation piece. Through setting up above-mentioned structure, can prevent that the system from exchanging with external from the lateral wall of pipeline when carrying out the heat exchange to loss when having reduced the heat exchange, so be favorable to improving the heat exchange efficiency of device, in order to guarantee the steady operation of entire system.

In particular, the liquid in the first circuit comprises ethylene glycol. Because the ethylene glycol has the characteristics of high efficiency, energy saving, low price, low cost, safety, reliability and the like, the heat exchange efficiency of the device can be ensured by adopting the material, and the use cost of the device can be further reduced. Optionally, the liquid in the first circuit may be further configured as water, oil, or other substances, and the specific configuration should be selected according to the usage environment of the device, so long as the usage requirement of the device can be met.

In one embodiment, the diameter of the total inlet pipe 21 is larger than the diameter of the inlet branch pipe 22, and the diameter of the total outlet pipe 31 is larger than the diameter of the outlet branch pipe 32. By the arrangement, the liquid flow in the liquid inlet branch pipe 22 and the liquid outlet branch pipe 32 can be adjusted, so that the specific temperature regulation condition can be controlled conveniently.

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 exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof. The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present utility model, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a ground source heat pump system for energy storage power station, a serial communication port, energy storage power station includes a plurality of energy storage cabinets, every all be provided with the heat transfer piece in the energy storage cabinet, ground source heat pump system includes:

A heat pump air conditioner;

One end of the liquid inlet pipeline is communicated with the input ends of the heat exchange pieces of the energy storage cabinets, and the other end of the liquid inlet pipeline is arranged in the delivery end of the heat pump air conditioner;

One end of the liquid outlet pipeline is communicated with the output ends of the heat exchange pieces of the energy storage cabinets, and the other end of the liquid outlet pipeline is arranged in the input end of the heat pump air conditioner;

The heat exchange pieces, the liquid inlet pipelines and the liquid outlet pipelines form a first loop together.

2. A ground source heat pump system according to claim 1, wherein the heat pump air conditioner comprises a heat pump host and a ground energy unit, the ground energy unit is provided with a second loop, the heat pump host is provided with a first heat exchanger and a second heat exchanger, the heat pump host exchanges heat with liquid in the liquid inlet pipeline and the liquid outlet pipeline through the first heat exchanger, and the heat pump host exchanges heat with the ground energy unit through the second heat exchanger.

3. A ground source heat pump system according to claim 2 wherein said heat pump host further comprises a compressor, a four-way valve, a throttle valve, said compressor, said four-way valve, said throttle valve together forming a third circuit, said third circuit in heat exchange with said first circuit through said first heat exchanger, said third circuit in heat exchange with said second circuit through said second heat exchanger.

4. A ground source heat pump system according to claim 2, wherein the geothermal energy set comprises a buried pipe buried in the earth's surface.

5. A ground source heat pump system as set forth in claim 4 wherein said geothermal energy set further comprises a first water pump, a first filter and a first one-way valve, said first water pump, said first filter, said ground pipe, and said first one-way valve together forming said second circuit.

6. The ground source heat pump system of claim 5, wherein the liquid inlet pipeline comprises a total liquid inlet pipe and a plurality of liquid inlet branch pipes communicated with the total liquid inlet pipe, the liquid outlet pipeline comprises a total liquid outlet pipe and a plurality of liquid outlet branch pipes communicated with the total liquid outlet pipe, two ends of the heat exchange piece are respectively communicated with the liquid inlet branch pipes and the liquid outlet branch pipes and are arranged in a one-to-one correspondence manner, and the heat pump air conditioner can exchange heat with liquid in the total liquid inlet pipe and the total liquid outlet pipe.

7. A ground source heat pump system according to any one of claims 4-6, further comprising a second water pump, a second filter and a second one-way valve, wherein the second water pump, the second filter, the ground pipe, the second one-way valve, the plurality of heat exchange elements, the liquid inlet line and the liquid outlet line together form the second circuit.

8. The ground source heat pump system of claim 1, wherein the outside of the liquid inlet pipeline and the liquid outlet pipeline are both wrapped with insulation pieces.

9. A ground source heat pump system according to claim 1, wherein the liquid in the first circuit comprises ethylene glycol.

10. A ground source heat pump system according to claim 6, wherein the total feed pipe has a diameter greater than the diameter of the feed branch pipe and the total discharge pipe has a diameter greater than the diameter of the discharge branch pipe.