CN218788423U - Liquid cooling centralized energy storage battery cabinet heat dissipation system - Google Patents
Liquid cooling centralized energy storage battery cabinet heat dissipation system Download PDFInfo
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- CN218788423U CN218788423U CN202223398029.9U CN202223398029U CN218788423U CN 218788423 U CN218788423 U CN 218788423U CN 202223398029 U CN202223398029 U CN 202223398029U CN 218788423 U CN218788423 U CN 218788423U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a liquid cooling centralized energy storage battery cabinet heat dissipation system, belonging to the technical field of chemical battery liquid cooling energy storage, comprising a cabinet body, a battery module, a heat exchanger, a refrigerant circulation system and a chilled water circulation system; the refrigerant circulating system comprises a refrigerant liquid supply header and a refrigerant gas return header, and the refrigerant liquid supply header and the refrigerant gas return header both extend into the cabinet body; the refrigerant is an environment-friendly refrigeration working medium; the chilled water circulation system comprises a chilled water supply header and a chilled water return header which are connected with the heat exchanger. The utility model provides a liquid cooling centralized energy storage battery cabinet cooling system, through setting up the heat exchanger, form two independent circulation systems, two circulation systems only transfer heat and not mass; and the refrigerant adopted in the refrigerating system is an environment-friendly refrigerating working medium, and is directly evaporated when leaked, so that the potential safety hazards of equipment damage and the like caused by leakage of secondary refrigerant into the cabinet body are effectively solved, and the safety and reliability of heat dissipation are improved.
Description
Technical Field
The utility model belongs to the technical field of chemical battery liquid cooling energy storage, more specifically say, relate to a centralized energy storage battery cabinet cooling system of liquid cooling.
Background
When the battery system is in operation, the current passes through each battery module, and because of the heat generated by the internal resistance of the battery module, if the heat can not be dissipated in time, the performance of the battery is seriously influenced, even the system thermal runaway is caused, and the safety risk is caused. At present, the battery module is usually cooled in a battery cabinet by arranging a pipeline for conveying low-temperature secondary refrigerant in the battery module and exchanging heat with the inside of the battery module through the secondary refrigerant to achieve the purpose of cooling the battery module. The conventional liquid-cooled battery cabinet adopts secondary refrigerant (ethylene glycol aqueous solution and the like) which directly enters the battery cabinet to cool the battery pack, and when the secondary refrigerant leaks, potential safety hazards such as equipment damage and the like can be caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centralized energy storage battery cabinet cooling system of liquid cooling aims at solving the problem that secondary refrigerant leaks in the battery cabinet and can arouse equipment to damage.
In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a centralized energy storage battery cabinet cooling system of liquid cooling, includes: the cabinet body, the battery module and the heat exchanger;
the refrigerant circulating system comprises a refrigerant liquid supply header and a refrigerant return header which are connected with the heat exchanger, the refrigerant liquid supply header and the refrigerant return header both extend into the cabinet body, the refrigerant liquid supply header is connected with a refrigerant inlet on the battery module through a first hose, and the refrigerant return header is connected with a refrigerant outlet on the battery module through a second hose; the refrigerant is an environment-friendly refrigeration working medium;
the chilled water circulating system comprises a chilled water supply header and a chilled water return header which are connected with the heat exchanger; the chilled water supply collecting pipe is connected with a cold water pipe of the cold source, and the chilled water return collecting pipe is connected with a hot water pipe of the cold source.
As another embodiment of the present application, the bottom end of the heat exchanger is higher than the top plate of the cabinet.
As another embodiment of the present application, the number of the heat exchangers and the number of the cabinets are multiple, and the plurality of the heat exchangers and the plurality of the cabinets correspond to one another; the heat exchangers are arranged between the hot water pipe and the cold water pipe in parallel.
As another embodiment of the present application, the heat exchanger is a brazed plate heat exchanger.
As another embodiment of the application, the chilled water return header is provided with a flow regulating valve, and both sides of the flow regulating valve are provided with regulating valves.
As another embodiment of the present application, the refrigerant outlet on the battery module is higher than the refrigerant inlet.
As another embodiment of the present application, a flow equalizing ring is disposed at a connection of the refrigerant supply header to the first hose.
As another embodiment of the present application, a shutoff valve is provided on each of the refrigerant supply header and the refrigerant return header.
As another embodiment of this application, have temperature and humidity sensor in the cabinet body.
As another embodiment of the present application, a thermometer is disposed on the refrigerant supply header.
The utility model provides a centralized energy storage battery cabinet cooling system of liquid cooling's beneficial effect lies in: compared with the prior art, the liquid-cooled centralized energy storage battery cabinet heat dissipation system has the advantages that the heat exchanger is arranged, so that the refrigerant circulation system in the cabinet body is separated from the chilled water circulation system connected with the cold source outside the cabinet body by the heat exchanger, two independent circulation systems are formed, and only heat transfer and mass transfer are realized by the two circulation systems; and the refrigerant adopted in the refrigerating system is an environment-friendly refrigerating working medium, and is directly evaporated when leaked, so that the potential safety hazards of equipment damage and the like caused by leakage of secondary refrigerant into the cabinet body are effectively solved, and the safety and reliability of heat dissipation are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a liquid-cooled centralized energy storage battery cabinet cooling system according to an embodiment of the present invention;
fig. 2 is a side view of a liquid-cooled centralized energy storage battery cabinet cooling system according to an embodiment of the present invention;
fig. 3 is a top view of a cooling system of a liquid-cooled centralized energy storage battery cabinet according to an embodiment of the present invention.
In the figure: 1. a cabinet body; 2. a battery module; 3. a refrigerant return header; 4. a first hose; 5. a refrigerant supply header; 6. a second hose; 7. a temperature and humidity sensor; 8. a thermometer; 9. a heat exchanger; 10. adjusting the valve; 11. a flow regulating valve; 12. a stop valve; 13. a current equalizing ring; 14. a chilled water supply header; 15. a chilled water return header; 16. a cold water pipe; 17. a hot water pipe.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, a cooling system of a liquid-cooled centralized energy storage battery cabinet according to the present invention will now be described. The liquid cooling centralized energy storage battery cabinet heat dissipation system comprises a cabinet body 1, a battery module 2, a heat exchanger 9, a refrigerant circulation system and a chilled water circulation system; the refrigerant circulating system comprises a refrigerant liquid supply header 5 and a refrigerant gas return header 3 which are connected with a heat exchanger 9, wherein the refrigerant liquid supply header 5 and the refrigerant gas return header 3 both extend into the cabinet body 1, the refrigerant liquid supply header 5 is connected with a refrigerant inlet on the battery module 2 through a first hose 4, and the refrigerant gas return header 3 is connected with a refrigerant outlet on the battery module 2 through a second hose 6; the refrigerant is an environment-friendly refrigeration working medium; the chilled water circulating system comprises a chilled water supply header 14 and a chilled water return header 15 which are connected with the heat exchanger 9; the chilled water supply header 14 is connected with a cold water pipe 16 of the cold source, and the chilled water return header 15 is connected with a hot water pipe 17 of the cold source.
The utility model provides a centralized energy storage battery cabinet cooling system of liquid cooling compares with prior art, and the heat exchanger 9 in the battery module 2 and the cabinet body 1 outside of the cabinet body 1 inside of the refrigeration cycle system connection cabinet, and wherein heat exchanger 9 is connected with external cold source with the help of refrigerated water circulation system, and wherein refrigerated water supplies water header 14 and refrigerated water return water header 15 and connects the cold water pipe 16 and the hot-water line 17 of cold source respectively.
A refrigerant circulating system is arranged between the heat exchanger 9 and the battery modules 2, wherein the heat exchanger 9 extends to the interior of the cabinet body 1 through a refrigerant supply header 5 and is connected with a refrigerant inlet on the battery modules 2 through a first hose 4; the liquid refrigerant is heated inside the battery module 2 and then changed into a gaseous refrigerant, and the gaseous refrigerant flows out of the refrigerant outlet on the battery module 2, enters the refrigerant return header 3 through the second hose 6, and reenters the heat exchanger 9 through the refrigerant return header 3.
The refrigerant adopts environment-friendly refrigeration working media such as R410A/R134a and the like, is directly evaporated during leakage, and cannot bring potential safety hazards to equipment due to leakage.
The utility model provides a centralized energy storage battery cabinet cooling system of liquid cooling, through setting up heat exchanger 9, make heat exchanger 9 separate the refrigerant circulation system in the cabinet body 1 and the refrigerated water circulation system of the cabinet body 1 outside connection cold source, form two independent circulation systems, two circulation systems only transfer heat and not mass transfer; and the refrigerant adopted in the refrigerating system is an environment-friendly refrigerating working medium, and is directly evaporated when being leaked, so that the potential safety hazards of equipment damage and the like caused by the fact that the secondary refrigerant enters the cabinet body 1 to be leaked are effectively solved, and the safety and reliability of heat dissipation are improved.
Optionally, the cold source may be a cold machine for generating cold.
In some possible embodiments, referring to fig. 1, the bottom end of the heat exchanger 9 is higher than the top plate of the cabinet 1.
The bottom of the heat exchanger 9 is higher than the top of the battery module 2 at the uppermost layer in the cabinet body 1, and a gravity circulation height difference is reserved. The refrigerant circulating system realizes the circulation of the refrigerant in the heat exchanger 9 and the cabinet body 1 by virtue of the height difference, reduces moving parts of a circulating pump required by secondary heat exchange, and is safer, more reliable and more energy-saving.
In some possible embodiments, please refer to fig. 1, the number of the heat exchangers 9 and the cabinet 1 is multiple, and the plurality of heat exchangers 9 correspond to the plurality of cabinets 1 one by one; a plurality of heat exchangers 9 are arranged in parallel between the hot water pipe 17 and the cold water pipe 16.
When a plurality of cabinets 1 are provided, a corresponding heat exchanger 9 is arranged above each cabinet 1, and a refrigerant circulating system is arranged between each cabinet 1 and the corresponding heat exchanger 9. Each heat exchanger 9 is provided with a chilled water circulation system correspondingly, and a plurality of chilled water circulation systems are connected in parallel on the cold water pipe 16 and the hot water pipe 17.
The plurality of heat exchangers 9 are connected in parallel, so that the plurality of heat exchangers 9 and the cold source can be switched randomly; the heat dissipation state of the cabinet body 1 can be adjusted by adjusting the connection state of the heat exchanger 9 and the cold source.
Optionally, the heat exchanger 9 is a brazed plate heat exchanger. The heat exchanger 9 is used as a condenser on the opposite refrigerant side, and is typically in the form of a brazed plate heat exchanger. A water refrigerant heat exchanger is selected.
Optionally, the chilled water supply header 14 is connected to a cold water pipe 16 of the cold source, and the chilled water return header 15 is connected to a hot water pipe 17 of the cold source. The chilled water is cooled in the cold source, then enters the chilled water supply header 14 through the cold water pipe 16, and finally flows into the heat exchanger to exchange heat with the refrigerant; after heat exchange, high-temperature chilled water enters the chilled water return header 15 and enters the cold source through the hot water pipe 17 to be cooled repeatedly.
A regulating valve 10 is arranged on the chilled water supply header 14. The chilled water return header 15 is provided with a flow regulating valve 11, and both sides of the flow regulating valve 11 are provided with regulating valves 10. The adjusting valve 10 on the chilled water supply header 14 and the adjusting valve 10 on the chilled water return header 15 can isolate a main water path and a branch water path; the two regulating valves 10 on the chilled water return header 15 may isolate the flow regulating valve 11 for maintenance inspection. The flow control valve 11 is provided to adjust the flow of a plurality of chilled water circulation systems connected in parallel to ensure safe and economical operation of each module.
In some possible embodiments, referring to fig. 1, the refrigerant outlet on the battery module 2 is higher than the refrigerant inlet.
The heat exchange flow channel in the battery module 2 is required to be designed to be vertically upward from bottom to top, so that the low-temperature liquid refrigerant can be conveniently distributed at the bottom, and the refrigerant after evaporation is conveniently collected towards the upper part, therefore, the refrigerant inlet of the battery module 2 is positioned at the lower part of the battery module, and the refrigerant outlet of the battery module 2 is positioned at the upper part of the battery module.
In some possible embodiments, referring to FIG. 1, the refrigerant supply header 5 is provided with a flow equalizing ring 13 at the junction with the first flexible tube 4.
Refrigerant is distributed in each first hose 4 through a refrigerant liquid supply header 5, flow equalizing rings 13 are respectively arranged on the refrigerant liquid supply header 5 along the height direction, low-temperature liquid refrigerant enters the battery module 2 through the first hose 4, the low-temperature refrigerant absorbs heat dissipated by the battery module 2 in the battery module 2 and evaporates to become high-temperature refrigerant gas, and the high-temperature refrigerant gas enters the second hose 6 and enters the refrigerant air return header 3 through the second hose 6.
Optionally, shutoff valves 12 are provided in both the refrigerant supply header 5 and the refrigerant return header 3.
Optionally, a temperature and humidity sensor 7 is arranged in the cabinet body 1. The refrigerant supply header 5 is provided with a thermometer 8.
When the temperature sensor built in the battery module 2 detects the temperature change in the battery module 2 and the temperature and humidity sensor 7 in the cabinet monitors the temperature change in the cabinet body 1, the data is uploaded to the hollow system to adjust the chilled water temperature of the cold water pipe 16, or the collected relevant temperature in different cabinet bodies 1 is balanced by adjusting the flow through the flow adjusting valve 11.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Centralized energy storage battery cabinet cooling system of liquid cooling, its characterized in that includes: the cabinet body (1), the battery module (2) and the heat exchanger (9);
the refrigerant circulating system comprises a refrigerant liquid supply header (5) and a refrigerant gas return header (3) which are connected with the heat exchanger (9), the refrigerant liquid supply header (5) and the refrigerant gas return header (3) extend into the cabinet body (1), the refrigerant liquid supply header (5) is connected with a refrigerant inlet on the battery module (2) through a first hose (4), and the refrigerant gas return header (3) is connected with a refrigerant outlet on the battery module (2) through a second hose (6); the refrigerant is an environment-friendly refrigeration working medium;
the chilled water circulating system comprises a chilled water supply header (14) and a chilled water return header (15) which are connected with the heat exchanger (9); the chilled water supply collecting pipe (14) is connected with a cold water pipe (16) of the cold source, and the chilled water return collecting pipe (15) is connected with a hot water pipe (17) of the cold source.
2. The liquid-cooled centralized energy storage battery cabinet cooling system of claim 1, wherein the bottom end of the heat exchanger (9) is higher than the top plate of the cabinet body (1).
3. The liquid-cooled centralized energy storage battery cabinet cooling system of claim 2, wherein there are a plurality of heat exchangers (9) and the cabinet body (1), and a plurality of heat exchangers (9) correspond to a plurality of cabinet bodies (1) one by one; the heat exchangers (9) are arranged between the hot water pipe (17) and the cold water pipe (16) in parallel.
4. A liquid-cooled centralized energy storage battery cabinet cooling system according to claim 3, wherein the heat exchanger (9) is a brazed plate heat exchanger.
5. The liquid-cooled centralized energy storage battery cabinet cooling system according to claim 1, wherein the return chilled water header (15) has a flow control valve (11), and both sides of the flow control valve (11) are provided with control valves (10).
6. The liquid-cooled centralized energy storage battery cabinet cooling system according to claim 1, wherein the refrigerant outlet on the battery module (2) is higher than the refrigerant inlet.
7. The liquid-cooled centralized energy storage battery cabinet cooling system of claim 1, wherein a flow equalizing ring (13) is provided at the connection of the refrigerant supply header (5) and the first hose (4).
8. The liquid-cooled centralized energy storage battery cabinet cooling system of claim 1, wherein a shut-off valve (12) is provided on each of the refrigerant supply header (5) and the refrigerant return header (3).
9. The liquid-cooled centralized energy storage battery cabinet cooling system according to claim 1, wherein the cabinet body (1) has a temperature and humidity sensor (7) therein.
10. The liquid-cooled centralized energy storage battery cabinet cooling system of claim 1, wherein a thermometer (8) is provided on the refrigerant supply header (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398029.9U CN218788423U (en) | 2022-12-16 | 2022-12-16 | Liquid cooling centralized energy storage battery cabinet heat dissipation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398029.9U CN218788423U (en) | 2022-12-16 | 2022-12-16 | Liquid cooling centralized energy storage battery cabinet heat dissipation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218788423U true CN218788423U (en) | 2023-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223398029.9U Active CN218788423U (en) | 2022-12-16 | 2022-12-16 | Liquid cooling centralized energy storage battery cabinet heat dissipation system |
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| Country | Link |
|---|---|
| CN (1) | CN218788423U (en) |
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2022
- 2022-12-16 CN CN202223398029.9U patent/CN218788423U/en active Active
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