CN219419160U - Cooling and fire control integrated energy storage equipment - Google Patents
Cooling and fire control integrated energy storage equipment Download PDFInfo
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- CN219419160U CN219419160U CN202222980689.1U CN202222980689U CN219419160U CN 219419160 U CN219419160 U CN 219419160U CN 202222980689 U CN202222980689 U CN 202222980689U CN 219419160 U CN219419160 U CN 219419160U
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- 238000001816 cooling Methods 0.000 title claims abstract description 87
- 238000004146 energy storage Methods 0.000 title claims abstract description 36
- 239000000110 cooling liquid Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims description 139
- 238000003860 storage Methods 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 8
- 239000012809 cooling fluid Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 230000008033 biological extinction Effects 0.000 description 5
- 238000012983 electrochemical energy storage Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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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 relates to cooling and fire-fighting integrated energy storage equipment, which comprises an energy storage system, wherein the energy storage system comprises at least one battery cluster, the battery cluster comprises a plurality of battery packs which are sequentially arranged in the vertical direction, each battery pack comprises a shell and a plurality of electric cores which are arranged in the shell, the cooling and fire-fighting integrated energy storage equipment also comprises a cooling system fire-fighting system, the cooling system is respectively connected with each battery pack, cooling liquid circularly circulates between each battery pack, and the cooling liquid in each battery pack wraps each electric core; the fire-fighting system is respectively connected with each battery pack so as to convey the cooling liquid in the battery packs to the fire-fighting system for fire extinguishment when the fire-fighting system works. According to the utility model, each surface of each battery cell can be effectively radiated by wrapping each battery cell with the cooling liquid, the consistency of the battery and the cooling performance of the cooling and fire-fighting integrated energy storage equipment are improved, and meanwhile, the equipment can extinguish the fire of the battery cluster through a fire-fighting system carried by the equipment, so that the rapid fire extinguishment can be realized.
Description
Technical Field
The utility model relates to the technical field of energy storage, in particular to cooling and fire-fighting integrated energy storage equipment.
Background
At present, electrochemical energy storage equipment, in particular to electrochemical energy storage equipment mainly comprising lithium iron phosphate batteries and ternary lithium batteries, is cooled by adopting an air-cooling air conditioning technology and a cold plate type liquid cooling technology, and the two cooling technologies are applied to energy storage projects in a large scale.
However, by adopting the air-cooled air conditioning technology, when air-cooled air is distributed in an airflow structure among battery packs, the air quantity is difficult to be completely and uniformly distributed, so that the phenomenon of uneven cooling and heating exists among the battery packs or battery cores, the temperature distribution difference is large, the consistency of the battery cores is poor, and the charging and discharging performance is greatly influenced. When the cold plate is adopted, the cold plate is stuck on one surface of the battery pack, and a cooling liquid flow channel is arranged in the cold plate, so that the temperature distribution of the battery core is improved to a certain extent, but the temperature distribution still has a larger lifting space due to the fact that only one surface of the heat conducting surface is used.
In addition, the battery adopts an air cooling air conditioning technology or a cold plate type liquid cooling technology, and the temperature of the battery core can be controlled, but once the battery pack is out of control, the cooling technology and the fire extinguishing technology of the battery are two sets of mutually independent systems, so that an additional fire extinguishing system needs to be started for extinguishing fire, the timeliness of fire extinguishing is difficult to ensure, and the fire extinguishing system needs to be independently arranged outside the electrochemical energy storage equipment, so that the equipment cost is also improved.
Disclosure of Invention
Based on this, it is necessary to provide an integrated cooling and fire-fighting energy storage device for the problems of large difference in battery temperature distribution, low battery consistency, and additional fire-fighting system in the existing electrochemical energy storage system.
The utility model provides a cooling and fire control integration energy storage device, includes at least one battery cluster, the battery cluster includes a plurality of battery package that sets gradually in vertical direction, the battery package include the shell with set up in a plurality of electricity core in the shell, cooling and fire control integration energy storage device still includes:
the cooling system is respectively connected with each battery pack and circulates cooling liquid between the cooling system and each battery pack, and the cooling liquid in the battery packs wraps each battery core;
and the fire-fighting system is respectively connected with each battery pack so as to convey the cooling liquid in the battery packs to the fire-fighting system for fire extinguishment when the fire-fighting system works.
In one embodiment, the inner cavity of the battery pack is provided with a liquid inlet space at the bottom and a liquid return space at the top, a cooling space for placing each battery cell is formed between the liquid inlet space and the liquid return space, and the liquid inlet space and the liquid return space are communicated with the cooling space;
the shell is provided with a liquid inlet and a liquid return port, the liquid inlet is communicated with the liquid inlet space, and the liquid return port is communicated with the liquid return space.
In one embodiment, a lower flow equalizing plate and an upper flow equalizing plate are arranged in the inner cavity, the liquid inlet space is formed between the lower flow equalizing plate and the bottom of the inner cavity, and the liquid return space is formed between the upper flow equalizing plate and the top of the inner cavity;
a plurality of first through holes are formed in the lower flow equalizing plate at intervals, and the liquid inlet space is communicated with the cooling space through the first through holes;
the upper flow equalizing plate is provided with a plurality of second through holes at intervals, and the liquid return space is communicated with the cooling space through the second through holes.
In one embodiment, in the same battery pack, gaps are formed between any two adjacent battery cells and between the battery cells and the upper current equalizing plate/the lower current equalizing plate.
In one embodiment, the cooling system comprises a heat exchanger forming a circulation loop with the external cold source equipment, and a heat exchange medium circulates between the heat exchanger and the external cold source equipment;
and a circulation loop for circulating the cooling liquid is formed between the heat exchanger and each battery pack, and the heat exchanger is used for exchanging heat between the cooling liquid and the heat exchange medium.
In one embodiment, the cooling system further comprises a liquid supply pipe and a liquid return pipe, wherein the liquid supply pipe and the liquid return pipe are connected with the heat exchanger through connecting hoses, one of the two connecting hoses is provided with a liquid circulating pump, the liquid supply pipe is respectively connected with the liquid inlet of each battery pack, and the liquid return pipe is respectively connected with the liquid return port of each battery pack so as to form a circulating loop between the heat exchanger and each battery pack.
In one embodiment, the liquid supply pipe and the liquid return pipe are vertically arranged, and the top parts of the liquid supply pipe and the liquid return pipe are provided with automatic exhaust valves.
In one embodiment, the fire protection system includes:
the fire fighting vertical pipes are vertically arranged and positioned on one side of the battery cluster, and are respectively connected with each battery pack;
the fire control main pipe is connected with the lower end of the fire control vertical pipe, and one end of the fire control main pipe, which is not connected with the fire control vertical pipe, extends to the upper part of the battery cluster;
the fire-fighting branch pipe is connected to the part of the fire-fighting main pipe above the battery cluster, and one end of the fire-fighting branch pipe, which is far away from the fire-fighting main pipe, is connected with a fire-fighting spray head; and
the fire-fighting liquid pump is arranged on the fire-fighting main pipe.
In one embodiment, the fire main pipe is provided with a liquid storage tank, and the liquid storage tank is provided with a one-way valve.
In one embodiment, the fire main pipe is provided with an electrically operated valve near the fire sprinkler head.
Among the above-mentioned energy memory, through making each electric core of coolant liquid parcel make each face homoenergetic of electric core effectively dispel the heat, and each face heat dissipation of electric core is even for the temperature distribution difference of electric core reduces, has improved the uniformity of battery and the cooling performance of cooling and fire control integration energy storage equipment, and cooling and fire control integration energy storage equipment accessible fire extinguishing system that itself has put out a fire to the battery cluster simultaneously, can realize quick fire extinguishing, has improved the security of equipment, and the coolant liquid has realized the dual effect as refrigerant and fire extinguishing agent, has reduced the manufacturing cost of equipment.
Drawings
FIG. 1 is a schematic diagram of a cooling and fire-fighting integrated energy storage device according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is an enlarged schematic view of FIG. 1 at B;
fig. 4 is a side view of a battery pack according to an embodiment of the present utility model;
fig. 5 is a cross-sectional view of a battery pack according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a lower flow equalization plate (upper flow equalization plate) in the embodiment of the utility model;
reference numerals illustrate:
10. cooling and fire-fighting integrated energy storage equipment; 100. a battery cluster; 120. a battery pack; 121. a housing; 1211. a housing part; 1212. a cover plate; 1213. a seal; 122. a battery cell; 123. a liquid inlet space; 124. a liquid return space; 125. cooling the space; 126. a liquid inlet; 127. a liquid return port; 128. a lower flow equalizing plate; 1281. a first through hole; 129. an upper flow equalizing plate; 1291. a second through hole; 130. a battery cluster management unit; 200. a cooling system; 210. a heat exchanger; 220. a primary side pipeline; 221. a cold source water supply pipe; 222. a cold source return pipe; 223. a first connection hose; 230. a secondary side pipeline; 231. a liquid supply pipe; 232. a liquid return pipe; 233. a second connection hose; 234. a third connecting hose; 235. a liquid circulation pump; 240. a self-closing pipe joint; 250. an automatic exhaust valve; 300. a fire protection system; 310. a fire riser; 311. a fourth connecting hose; 322. a fire-fighting quick connector; 320. a fire-fighting main pipe; 330. fire branch pipes; 340. a fire pump; 350. fire control shower nozzle; 360. a liquid storage tank; 361. a one-way valve; 370. an electric valve; 380. a vent; 390. and a liquid viewing window.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 and 3, an integrated cooling and fire protection energy storage device 10 according to an embodiment of the present utility model includes at least one battery cluster 100. For example, the number of the battery clusters 100 is three, and the three battery clusters 100 are arranged in parallel. The battery cluster 100 comprises a plurality of battery packs 120 which are sequentially arranged at intervals in the vertical direction, and each battery pack 120 is sequentially connected in series; the battery 120 includes a housing 121 and a plurality of cells 122 disposed in the housing 121, and the plurality of cells 122 are connected in series/parallel with each other.
As shown in fig. 1, the integrated cooling and fire protection energy storage device 10 further includes a cooling system 200 and a fire protection system 300; the cooling system 200 is respectively connected with each battery pack 120, and circulates cooling liquid between each battery pack 120 to cool and dissipate heat of each battery cell 122 of each battery pack 120; the cooling liquid flowing through the battery pack 120 fills the inner cavity of the whole shell 121, and can wrap each battery cell 122, so that each surface of each battery cell 122 can effectively dissipate heat, the cooling performance of the cooling and fire-fighting integrated energy storage device 10 is improved, and each surface of each battery cell 122 dissipates heat uniformly, so that the temperature distribution difference of the battery cells 122 is reduced, and the consistency of the battery is improved.
The fire protection system 300 is respectively connected with each battery pack 120, and when the fire protection system 300 is started, the cooling liquid in each battery pack 120 can be conveyed to the fire protection system 300, so that the fire protection system 300 can spray the cooling liquid to the battery cluster 100 for fire extinction, in this way, the cooling and fire protection integrated energy storage device 10 has a fire protection function by arranging the fire protection system 300 and utilizing the cooling liquid in the battery packs 120 for fire extinction, no other fire protection devices are needed for fire extinction, in addition, the cooling liquid is used as a refrigerant for cooling the battery cells 122, and meanwhile, the cooling liquid is used as a fire extinguishing agent for fire extinction to the battery cluster 100, so that the cooling liquid has the dual functions of cooling and fire extinction at the same time, and the production cost of the device is reduced. When the battery cells 122 are out of control and fire occurs, the cooling and fire-fighting integrated energy storage device 10 can extinguish the fire of the battery clusters 100 through the fire-fighting system 300 carried by the cooling and fire-fighting integrated energy storage device, so that quick fire extinguishment can be realized, and the safety of the device is improved.
Preferably, the cooling liquid is a fluoridized liquid, however, the cooling liquid may be other mediums with better insulating property and fire extinguishing property and higher boiling point, which is not limited in this embodiment.
In one embodiment, as shown in fig. 4, the inner cavity of the battery pack 120 includes a liquid inlet space 123 at the bottom of the inner cavity and a liquid return space 124 at the top of the inner cavity, and a cooling space 125 is formed between the liquid inlet space 123 and the liquid return space 124, and both the liquid inlet space 123 and the liquid return space 124 are connected to the cooling space 125; the cooling space 125 is used for placing each battery cell 122, for example, each battery cell 122 is vertically arranged, and each battery cell 122 is arranged in a plurality of columns in the cooling space 125; the shell 121 is provided with a liquid inlet 126 and a liquid return 127, the cooling system 200 is communicated with the liquid inlet space 123 through the liquid inlet 126, and the cooling system 200 is communicated with the liquid return space 124 through the liquid return 127; when the cooling system 200 works normally, the cooling liquid in the cooling system 200 enters the liquid inlet space 123 from the liquid inlet 126, flows into the cooling space 125 from the liquid inlet space 123 to cool the battery cells 122, flows into the liquid return space 124 from the cooling space 125 after heat exchange with the battery cells 122, flows back to the cooling system 200 through the liquid return port 127, flows into the battery pack 120 again after heat exchange and temperature reduction in the cooling system 200, and circulates in sequence.
It can be appreciated that, when the cooling fluid flows through the inner cavity of the battery pack 120, the cooling fluid sequentially passes through the liquid inlet space 123, the cooling space 125 and the liquid outlet space, and the cooling fluid flows from bottom to top, so that the cooling fluid can fill the entire inner cavity of the battery pack 120 when flowing through the battery pack 120, so that each battery cell 122 can be well wrapped in the cooling fluid, and heat dissipation of the battery cell 122 is more uniform.
In one embodiment, as shown in fig. 4 and fig. 5, a lower flow equalizing plate 128 and an upper flow equalizing plate 129 are disposed in the inner cavity of the battery pack 120, the upper flow equalizing plate 129 and the lower flow equalizing plate 128 are disposed at an upper-lower interval, the liquid return space 124 is formed between the upper flow equalizing plate 129 and the top of the inner cavity of the battery pack 120, and the liquid inlet space 123 is formed between the lower flow equalizing plate 128 and the bottom of the inner cavity of the battery pack 120; the cooling space 125 is formed between the upper flow equalizing plate 129 and the lower flow equalizing plate 128; a plurality of first through holes 1281 are formed in the lower flow equalizing plate 128 at intervals, and the liquid inlet space 123 is communicated with the cooling space 125 through the first through holes 1281; a plurality of second through holes 1291 are arranged on the upper flow equalizing plate 129 at intervals, and the liquid return space 124 is communicated with the cooling space 125 through the second through holes 1291. After the cooling liquid enters the liquid inlet space 123, the cooling liquid flows into the cooling space 125 through the first through hole 1281, and then flows into the liquid return space 124 through the second through hole 1291.
Further, as shown in fig. 6, the first through holes 1281 and the second through holes 1291 are disposed corresponding to the gaps between the adjacent cells 122 or the gaps between the cells 122 and the inner side walls of the cooling space 125, so that the flow of the cooling liquid is more smooth.
Optionally, in the same battery pack 120, gaps are formed between any two adjacent battery cells 122, and between the battery cells 122 and the upper current equalizing plate 129/lower current equalizing plate 128, so as to ensure that the cooling liquid can flow through any outer surface of the battery cells 122, thereby making the heat dissipation of the battery cells 122 uniform.
In one embodiment, as shown in fig. 4, the housing 121 includes a receiving portion 1211 and a cover plate 1212, the receiving portion 1211 is disposed to be opened upward, the cover plate 1212 is connected to the opening, and an inner cavity of the battery pack 120 is formed between the receiving portion 1211 and the cover plate 1212; in the production process, when the battery pack 120 is assembled, the lower current equalizing plate 128, the battery cells 122 and the upper current equalizing plate 129 are sequentially arranged in the inner cavity from bottom to top, and then the cover plate 1212 is connected to the opening. Further, a sealing member 1213 is provided between the cover plate 1212 and the upper edge of the receiving portion 1211 to ensure tightness of the inner cavity, for example, the sealing member 1213 is a rubber sealing ring or a silicone sealing ring.
In one embodiment, as shown in fig. 1, the cooling system 200 includes a heat exchanger 210, a primary side pipe 220, and a secondary side pipe 230, where the heat exchanger 210 forms a circulation loop with an external cold source device, for example, an air conditioner, through the primary side pipe 220; a heat exchange medium is circulated between the heat exchanger 210 and the external cold source device, for example, the heat exchange medium is circulating water or glycol water solution; the heat exchanger 210 forms a circulation loop for circulating the cooling liquid with each battery pack 120 through the secondary side pipeline 230, and the heat exchanger 210 is used for exchanging heat between the cooling liquid and the heat exchange medium, that is, the heat exchange medium in the primary side pipeline 220 exchanges heat with the cooling liquid in the secondary side pipeline 230 when flowing through the heat exchanger 210, so as to take away the heat of the battery cells 122. In addition, in this embodiment, by arranging the heat exchanger 210, and the heat exchange medium exists in the primary side pipeline 220, the heat exchange medium is isolated from the cooling liquid, so that the heat exchange medium is prevented from directly entering the battery pack 120, and the hidden trouble of liquid leakage caused by cold plate type liquid cooling is solved.
Specifically, as shown in fig. 2, the primary side pipeline 220 includes a cold source water supply pipe 221 and a cold source water return pipe 222, the cold source water supply pipe 221 and the cold source water return pipe 222 are connected between the external cold source device and the heat exchanger 210, and the cold source water supply pipe 221 and the cold source water return pipe 222 are connected with the heat exchanger 210 through a first connection hose 223, wherein the cold source water supply pipe 221 and the cold source water return pipe 222 are preferably stainless steel pipes, and of course, the cold source water supply pipe 221 and the cold source water return pipe 222 may also be hard pipe members made of other materials, which is not limited in this embodiment; the first connecting hoses 223 are all connected with the heat exchanger 210 through the self-closing pipeline joints 240; the low-temperature heat exchange medium flows into the heat exchanger 210 from the external cold source device through the cold source water supply pipe 221, and after heat exchange is performed in the heat exchanger 210, the high-temperature heat exchange medium returns to the external cold source device through the cold source water return pipe 222.
Further, as shown in fig. 2 and 3, the secondary side pipeline 230 includes a liquid supply pipe 231 and a liquid return pipe 232, where the liquid supply pipe 231 and the liquid return pipe 232 are connected to the heat exchanger 210 through a second connection hose 233, and the liquid supply pipe 231 and the liquid return pipe 232 are preferably stainless steel pipes, and of course, the liquid supply pipe 231 and the liquid return pipe 232 may also be hard pipes made of other materials, which is not limited in this embodiment; the two second connecting hoses 233 are connected with the heat exchanger 210 through the self-closing pipeline joint 240; one of the two second connection hoses 233 is provided with a liquid circulation pump 235, for example, the liquid circulation pump 235 is provided on the second connection hose 233 between the return pipe 232 and the heat exchanger 210; the liquid supply pipes 231 are respectively connected with the liquid inlets 126 of the battery packs 120, and the liquid return pipes 232 are respectively connected with the liquid return ports 127 of the battery packs 120 to form a circulation loop between the heat exchanger 210 and the battery packs 120; the liquid supply pipe 231 is connected with the liquid inlet 126 of the battery pack 120 through a third connecting hose 234, the liquid return pipe 232 is connected with the liquid return 127 of the battery pack 120 through a third connecting hose 234, and the two third connecting hoses 234 are also connected with the battery pack 120 through a self-closing pipeline joint 240; when the liquid circulation pump 235 is operated, the cooling liquid is continuously circulated between the battery pack 120 and the heat exchanger 210 to transfer heat of the battery cells 122 to the heat exchange medium through the cooling liquid, thereby achieving heat dissipation of the battery cells 122.
Alternatively, the liquid supply pipe 231 and the liquid return pipe 232 are vertically disposed so as to be parallel to the arrangement direction of the respective battery packs 120; the top of the liquid supply pipe 231 and the top of the liquid return pipe 232 are respectively provided with an automatic exhaust valve 250, so that air in the secondary side pipeline 230 is timely exhausted, and the cooling effect of the cooling liquid on the battery cell 122 is prevented from being influenced.
It should be noted that, in the present embodiment, the heat exchange amount of the single heat exchanger 210 is selected by taking one battery cluster 100 as granularity, one heat exchanger 210 is disposed corresponding to one battery cluster 100, and the single heat exchanger 210 can meet the heat exchange requirement of the single battery cluster 100. Therefore, when the number of the battery clusters 100 is plural, the heat exchangers 210 are respectively provided in plural, the heat exchangers 210 are respectively connected to the cold source water supply pipe 221 and the cold source water return pipe 222 via connection hoses, and the heat exchangers 210 are respectively connected to the corresponding battery clusters 100 via the liquid supply pipe 231 and the liquid return pipe 232.
In one embodiment, each battery pack 120 is further provided with a battery cluster management unit 130 (BCU), where the battery cluster management unit 130 (BCU) is configured to collect parameters such as temperature, voltage, etc. of the electrical core 122, and the battery cluster management unit 130 (BCU) is connected to a battery management system (BMU) of the cooling and fire protection integrated energy storage device 10, and the battery management system (BMU) of the cooling and fire protection integrated energy storage device 10 receives information collected by the battery cluster management unit 130 (BCU) and controls the operation parameters and on-off of the liquid circulation pump 235.
In one embodiment, the fire protection system 300 shown in fig. 1, 2, and 3 includes a fire riser 310, a fire main 320, a fire branch 330, and a fire pump 340; the fire fighting vertical pipes 310 are vertically arranged and are positioned on one side of the battery cluster 100, the fire fighting vertical pipes 310 are respectively connected with the battery packs 120 through fourth connecting hoses 311, and the fourth connecting hoses 311 are connected with the tops of the battery packs 120 through fire fighting quick connectors 322; fire main 320 is connected to the lower end of fire riser 310, and the end of fire main 320 not connected to fire riser 310 extends above battery cluster 100; the fire branch pipe 330 is connected to the portion of the fire main pipe 320 located above the battery cluster 100, one end of the fire branch pipe 330, which is far away from the fire main pipe 320, is connected with a fire nozzle 350, and the fire nozzle 350 is located above the corresponding battery cluster 100; the fire pump 340 is disposed on the fire main 320, and the fire pump 340 is located at a lower height position on the fire main 320. When thermal runaway and fire disaster occur in the battery cell 122, the liquid circulation pump 235 is controlled to be turned off, the fire pump 340 is started, and the cooling liquid in the battery pack 120 is pumped into the fire-fighting riser 310 and sprayed onto the corresponding battery cluster 100 sequentially through the fire-fighting main pipe 320, the fire-fighting branch pipe 330 and the fire-fighting nozzle 350, thereby realizing the fire-extinguishing function.
It should be noted that, one fire-fighting riser 310 corresponds to one battery cluster 100, when there are a plurality of battery clusters 100, there are a plurality of fire-fighting risers 310 corresponding to the plurality of battery clusters 100 one by one, and the bottom ends of the fire-fighting risers 310 are respectively connected with the fire-fighting main 320; further, when there are a plurality of battery clusters 100, there are a plurality of fire fighting branches 330 corresponding to the plurality of battery clusters 100, so that there are a plurality of fire fighting nozzles 350 corresponding to the plurality of battery clusters 100.
Optionally, as shown in fig. 2, the fire-fighting main pipe 320 is provided with a liquid storage tank 360, and the liquid storage tank 360 is located at a position on the fire-fighting main pipe 320 with a lower height; the liquid storage tank 360 is provided with a one-way valve 361, and the one-way valve 361 is used for filling and supplementing cooling liquid to the liquid storage tank 360. By providing the liquid storage tank 360 on the fire main pipe 320 as a supplement to the cooling liquid when performing fire fighting, it is avoided that the amount of cooling liquid in the battery pack 120 cannot satisfy the amount required when performing fire fighting.
Optionally, as shown in fig. 3, an electric valve 370 is disposed at the position of the fire main 320 close to the fire sprinkler 350, and the electric valve 370 is used for controlling on/off of the pipeline of the fire branch pipe 330 so as to further control whether the fire sprinkler 350 sprays or not; when thermal runaway and fire occurs in the battery cell 122, the liquid circulation pump 235 is controlled to be closed, the fire-fighting liquid pump 340 is started, and the electric valve 370 is opened at the same time, so that the battery cluster 100 can be sprayed to extinguish fire. Further, a fire-fighting probe may be mounted on the battery pack 100, and the fire-fighting probe may be a temperature-sensing probe, an extremely early smoke alarm, etc., and a fire-extinguishing process is started when the fire-fighting probe detects a fire.
Optionally, a vent 380 is provided at the top end of fire riser 310, vent 380 being used to vent fire riser 310 to atmosphere and to vent air from fire system 300 in a timely manner; further, fire riser 310 is provided with a viewing window 390 proximate vent 380, viewing window 390 for a worker to view the level of cooling fluid in fire riser 310.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides a cooling and fire control integration energy storage equipment, includes at least one battery cluster, the battery cluster includes a plurality of battery package that sets gradually in vertical direction, the battery package include the shell with set up in a plurality of electric core in the shell, its characterized in that, cooling and fire control integration energy storage equipment still includes:
the cooling system is respectively connected with each battery pack and circulates cooling liquid between the cooling system and each battery pack, and the cooling liquid in the battery packs wraps each battery core;
and the fire-fighting systems are respectively connected with the battery packs so as to convey the cooling liquid in the battery packs to the fire-fighting systems for fire extinguishment when the fire-fighting systems work.
2. The integrated cooling and fire protection energy storage device according to claim 1, wherein the inner cavity of the battery pack comprises a liquid inlet space at the bottom and a liquid return space at the top, a cooling space for placing each electric core is formed between the liquid inlet space and the liquid return space, and the liquid inlet space and the liquid return space are both communicated with the cooling space;
the shell is provided with a liquid inlet and a liquid return port, the liquid inlet is communicated with the liquid inlet space, and the liquid return port is communicated with the liquid return space.
3. The cooling and fire-fighting integrated energy storage device according to claim 2, wherein a lower flow equalizing plate and an upper flow equalizing plate are arranged in the inner cavity, the liquid inlet space is formed between the lower flow equalizing plate and the bottom of the inner cavity, and the liquid return space is formed between the upper flow equalizing plate and the top of the inner cavity;
a plurality of first through holes are formed in the lower flow equalizing plate at intervals, and the liquid inlet space is communicated with the cooling space through the first through holes;
the upper flow equalizing plate is provided with a plurality of second through holes at intervals, and the liquid return space is communicated with the cooling space through the second through holes.
4. The cooling and fire protection integrated energy storage device of claim 3, wherein in the same battery pack, gaps are formed between any two adjacent battery cells and between the battery cells and the upper/lower current sharing plates.
5. The integrated cooling and fire protection energy storage device of claim 2, wherein the cooling system comprises a heat exchanger forming a circulation loop with the external cold source device, and a heat exchange medium circulates between the heat exchanger and the external cold source device;
and a circulation loop for circulating the cooling liquid is formed between the heat exchanger and each battery pack, and the heat exchanger is used for exchanging heat between the cooling liquid and the heat exchange medium.
6. The cooling and fire-fighting integrated energy storage device according to claim 5, wherein the cooling system further comprises a liquid supply pipe and a liquid return pipe, the liquid supply pipe and the liquid return pipe are both connected with the heat exchanger through connecting hoses, one of the two connecting hoses is provided with a liquid circulation pump, the liquid supply pipe is respectively connected with the liquid inlet of each battery pack, and the liquid return pipe is respectively connected with the liquid return port of each battery pack to form a circulation loop between the heat exchanger and each battery pack.
7. The cooling and fire fighting integrated energy storage device of claim 6, wherein the liquid supply pipe and the liquid return pipe are vertically arranged, and the tops of the liquid supply pipe and the liquid return pipe are provided with automatic exhaust valves.
8. The integrated cooling and fire protection energy storage device of claim 1, wherein the fire protection system comprises:
the fire fighting vertical pipes are vertically arranged and positioned on one side of the battery cluster, and are respectively connected with each battery pack;
the fire control main pipe is connected with the lower end of the fire control vertical pipe, and one end of the fire control main pipe, which is not connected with the fire control vertical pipe, extends to the upper part of the battery cluster;
the fire-fighting branch pipe is connected to the part of the fire-fighting main pipe above the battery cluster, and one end of the fire-fighting branch pipe, which is far away from the fire-fighting main pipe, is connected with a fire-fighting spray head; and
the fire-fighting liquid pump is arranged on the fire-fighting main pipe.
9. The cooling and fire-fighting integrated energy storage device of claim 8, wherein a liquid storage tank is arranged on the fire-fighting main pipe, and a one-way valve is arranged on the liquid storage tank.
10. The integrated cooling and fire protection energy storage device of claim 8, wherein the fire protection main is provided with an electrically operated valve proximate the fire protection sprinkler head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222980689.1U CN219419160U (en) | 2022-11-09 | 2022-11-09 | Cooling and fire control integrated energy storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222980689.1U CN219419160U (en) | 2022-11-09 | 2022-11-09 | Cooling and fire control integrated energy storage equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845425A (en) * | 2023-08-31 | 2023-10-03 | 南方电网调峰调频(广东)储能科技有限公司 | Liquid cooling battery pack and battery energy storage system |
| CN117219905A (en) * | 2023-09-14 | 2023-12-12 | 中航国际科技成果转化基地(蚌埠)有限公司 | High-magnification electrochemical energy storage system |
-
2022
- 2022-11-09 CN CN202222980689.1U patent/CN219419160U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845425A (en) * | 2023-08-31 | 2023-10-03 | 南方电网调峰调频(广东)储能科技有限公司 | Liquid cooling battery pack and battery energy storage system |
| CN117219905A (en) * | 2023-09-14 | 2023-12-12 | 中航国际科技成果转化基地(蚌埠)有限公司 | High-magnification electrochemical energy storage system |
| CN117219905B (en) * | 2023-09-14 | 2024-05-28 | 中航国际科技成果转化基地(蚌埠)有限公司 | High-magnification electrochemical energy storage system |
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