CN216908965U - Immersion type fire extinguishing and directional pressure relief explosion-proof device for prefabricated cabin of lithium battery - Google Patents
Immersion type fire extinguishing and directional pressure relief explosion-proof device for prefabricated cabin of lithium battery Download PDFInfo
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- CN216908965U CN216908965U CN202122361389.0U CN202122361389U CN216908965U CN 216908965 U CN216908965 U CN 216908965U CN 202122361389 U CN202122361389 U CN 202122361389U CN 216908965 U CN216908965 U CN 216908965U
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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 belongs to the technical field of lithium battery energy storage prefabricated cabins, and particularly relates to an immersed fire extinguishing and directional pressure relief explosion-proof device for a lithium battery prefabricated cabin, which comprises a CAFS fire extinguishing square cabin, wherein a compressed foam supply device is integrally installed in the CAFS fire extinguishing square cabin; adopt the full submergence formula to be full of with compressed air foam in the prefabricated cabin of lithium cell energy storage, make the whole submergence of battery in the foam, isolated oxygen puts out a fire rapidly, will have generated the out of control battery module or the free detonation constraint of heat in the parcel of foam, reduce its explosion equivalent, and effectively prevent the formation of burning, through continuous cooling, reduce the possibility that produces new detonation gradually until eliminating, when the foam blanket is broken through by the gas pressure of battery detonation or foam self is separated the liquid and is led to the foam blanket to reduce, it restores and keeps the complete submergence state to supply the foam blanket, thereby reach and continue effectual fire control effect, can suppress the condition of a fire fast in the short time.
Description
Technical Field
The utility model belongs to the technical field of lithium battery energy storage prefabricated cabins, and particularly relates to an immersed fire extinguishing and directional pressure relief explosion-proof device for a lithium battery prefabricated cabin.
Background
In recent years, the smart grid construction and the rapid development of battery energy storage technology at home and abroad have increased the demand of battery energy storage. The energy storage technology becomes one of key technologies for developing and constructing the smart power grid, and has the advantages of improving the low energy quality of the power grid, clipping peaks and filling valleys, emergency standby, increasing the utilization rate of renewable energy sources and the like. The prefabricated cabin type battery energy storage system has the advantages of mature technology, high capacity, mobility, convenience in installation and the like, and has wide application prospect in a power grid system. With the rapid development of new generation lithium battery materials and the further improvement of battery technology, lithium batteries become the most widely used batteries in battery energy storage systems. However, although the lithium battery has excellent performance, thermal runaway can occur under abuse conditions such as overheating, over-charging and discharging, short circuit and the like, a large amount of heat and toxic smoke are released, and further fire explosion accidents can be caused.
Therefore, fire and explosion of the lithium battery are very easy to occur in the lithium battery energy storage prefabricated cabin, the current fire extinguishing method refers to a fire extinguishing mode of an electrical fire, and adopts water mist or gas for fire extinguishing, the lithium battery fire is completely different from the electrical fire, detonation is caused by thermal runaway of the battery, the spreading speed is high, the re-combustion is very easy, and the two modes of water mist or gas for fire extinguishing have poor cooling effect, can not effectively isolate oxygen and can not inhibit the re-combustion and re-explosion of the lithium battery.
Therefore, this technical field personnel provide a prefabricated cabin submergence formula extinguishing device of lithium cell, adopt the compressed air foam system of initiative joining air to carry out the full submergence formula to prefabricated cabin and put out a fire to the problem that proposes in solving above-mentioned background.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides an immersion type fire extinguishing and directional pressure releasing explosion-proof device for a prefabricated cabin of a lithium battery, which has the characteristics of simple and reasonable structure, capability of effectively isolating oxygen and inhibiting after-combustion and after-explosion of the lithium battery by sustainable spraying.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prefabricated cabin submergence formula of lithium cell is put out a fire and directional pressure release explosion-proof equipment:
the CAFS fire extinguishing shelter comprises a CAFS fire extinguishing shelter, wherein a compressed foam supply device is integrally installed in the CAFS fire extinguishing shelter;
the compressed foam supply device comprises a transition water tank communicated with a municipal water supply pipeline and used for storing a water source;
the output end of the transition water tank is communicated with a water pump, the input end of the water pump is communicated with the output end of the transition water tank, the output end of the water pump is communicated with a foam generating device, so that a water source stored in the transition water tank can be input into the foam generating device, and the input end of the foam generating device is also communicated with an air compressor for providing compressed air for the foam generating device and mixing foam liquid in the foam generating device to generate compressed foam.
Preferably, the output end of the foam generating device is communicated with a conveying pipeline, and a plurality of area selection valves corresponding to different areas in the external lithium battery energy storage prefabricated cabin are fixedly arranged in the conveying pipeline.
Preferably, a compressed air foam spraying device communicated with the output end of the area selection valve is arranged in the external lithium battery energy storage shelter, and the compressed air foam spraying device comprises a spray head and a release pipe.
Preferably, the fire extinguishing system comprises a control system which is arranged in an external control room and is linked with FAS, and is used for controlling the starting of the fire extinguishing system and the opening of the valves of each stage, and the foam generating device is in signal connection with the control system.
Preferably, a sensor for measuring the flow rate and pressure of the foam is arranged at the outlet of the foam generating device.
Preferably, the output end of the transition water tank is also communicated with an external fire hydrant.
Preferably, the top of the external lithium battery energy storage prefabricated cabin is provided with an explosion disc device, and the input end of the explosion disc device is in signal connection with the output end of the control system.
Preferably, explode the dish device and be explosion-proof butterfly valve, explode the input of dish device with the prefabricated cabin inside intercommunication of lithium cell energy storage, the output that explodes the dish device runs through the prefabricated cabin of lithium cell energy storage extends to the outside in the prefabricated cabin of lithium cell energy storage.
Compared with the prior art, the utility model has the beneficial effects that:
the fully-immersed type compressed air foam is fully filled in a lithium battery energy storage prefabricated cabin (a battery module cabin in the cabin) so that batteries are fully immersed in the foam, oxygen is isolated to quickly extinguish fire, the battery module with thermal runaway or single deflagration is bound in the foam, the explosion equivalent of the battery module is reduced, the formation of combustion is effectively prevented, the possibility of generating new deflagration is gradually reduced until the new deflagration is eliminated through continuous cooling, when the foam layer is broken by the gas pressure of battery deflagration or the foam self-liquid separation causes the reduction of the foam layer, the foam is supplemented to repair the foam layer and keep a fully-immersed state, so that the continuously effective fire extinguishing effect is achieved, the fire can be quickly suppressed in a short time, and the loss is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic view of an integrated installation structure of an immersed fire extinguishing and directional pressure relief explosion-proof device according to the present invention.
In the figure: 1. a CAFS fire extinguishing shelter; 2. a transition water tank; 3. a water pump; 4. an air compressor; 5. a foam generating device; 6. a delivery conduit; 61. a zone select valve; 7. compressed air foam blowing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a prefabricated cabin submergence formula of lithium cell is put out a fire and directional pressure release explosion-proof equipment:
comprises a CAFS fire extinguishing shelter 1; the CAFS fire extinguishing shelter 1 communicated with the lithium battery energy storage prefabricated cabin is arranged, the lithium battery energy storage prefabricated cabin is fully filled with compressed air foam in a fully-immersed mode, the battery is fully immersed in the foam, oxygen is isolated to extinguish the fire rapidly, and when the foam layer is broken by the gas pressure of battery deflagration or the foam layer is reduced due to self-liquid separation of the foam, the foam layer is repaired by supplementing the foam and the fully-immersed state is kept.
Wherein, a compressed foam supply device is integrally installed in the CAFS fire extinguishing shelter 1.
The compressed foam supply device comprises a transition water tank 2 communicated with a municipal water supply pipeline and used for storing water sources;
the output end of the transition water tank 2 is communicated with a water pump 3, the input end of the water pump 3 is communicated with the output end of the transition water tank 2, the output end of the water pump 3 is communicated with a foam generating device 5, so that water stored in the transition water tank 2 can be input into the foam generating device 5, and the input end of the foam generating device 5 is also communicated with an air compressor 4 for providing compressed air for the foam generating device 5 and mixing the compressed air with foam liquid in the foam generating device 5 to generate compressed foam; the output end of the transition water tank 2 is also communicated with an external fire hydrant, so that when a fire disaster spreads out of the lithium battery energy storage prefabricated cabin, the fire can be extinguished in time through the external fire hydrant, the spread of the fire disaster is inhibited, the overall safety is enhanced, the transition water tank 2 has multiple functions in installation, and the practicability is high;
the fire extinguishing system further comprises a control system which is arranged in an external control room and is linked with the FAS, and the control system is used for controlling the starting of the fire extinguishing system and the signal connection of the water pump 3 and the foam generating device 5 of each level of valve.
Specifically, the compressed foam supply device can provide a wet compressed air foam extinguishing agent with the water content of about 14.3 percent and a dry compressed air foam extinguishing agent with the water content of about 4.8 percent by adjusting the gas-liquid ratio, the wet foam has good flowing property and can quickly extinguish open fire, the dry foam has good adhesion and accumulation property, and the dry foam and the wet foam are mixed in a proper proportion, so that the sprayed compressed foam has the flowing property of the wet foam and the adhesion and accumulation property of the dry foam, can quickly fill the prefabricated cabin and is used for covering and cooling the combustion objects, preventing re-combustion, performing heat insulation protection on the surface, preventing heat radiation ignition and the like.
Further, a sensor for measuring the flow rate and pressure of the foam is provided at the outlet of the foam generating device 5.
In an optional embodiment, the output end of the foam generating device 5 is communicated with a conveying pipeline 6, a plurality of area selection valves 61 corresponding to different areas in an external lithium battery energy storage prefabricated cabin are fixedly arranged in the conveying pipeline 6, a compressed air foam blowing device 7 communicated with the output end of the area selection valves 61 is arranged in the external lithium battery energy storage square cabin, the compressed air foam blowing device 7 comprises a sprayer and a release pipe, when a deflagration area is detected by a FAS system, a control system linked with the FAS controls the opening and closing of a compressed foam supply device, the area selection valves 61 are controlled to open, foam is conveyed into the lithium battery energy storage prefabricated cabin in a fire disaster, then the compressed air foam blowing device 7 is used for blowing, the lithium battery energy storage prefabricated cabin is completely filled, so that the battery is completely immersed in the foam, and the area is completely immersed in the foam;
in an optional embodiment, an explosion disc device is arranged at the top of the external lithium battery energy storage prefabricated cabin, and the input end of the explosion disc device is in signal connection with the output end of the control system.
It is specific, it is explosion-proof butterfly valve to explode the dish device, the input and the prefabricated cabin inside intercommunication of lithium cell energy storage of exploding the dish device, the output that explodes the dish device runs through the outside that the prefabricated cabin of lithium cell energy storage extends to the prefabricated cabin of lithium cell energy storage, and thus, FAS system detects as long as the cabin interior high atmospheric pressure opens promptly and explodes the dish device, the pressure in the prefabricated cabin of directional release lithium cell energy storage, simultaneously with the easily burning of detonation production, it is explosive, the prefabricated cabin of toxic gas discharge lithium cell energy storage, thereby in time let out the easily burning and exploding toxic gas that the prefabricated cabin of battery energy storage deflagrated the production.
The working principle and the using process of the utility model are as follows: the water source in the transition water tank 2 is transmitted into a foam generating device 5 by a water pump 3, the water source is mixed with foam liquid in the foam generating device 5, an air compressor 4 provides compressed air for the foam generating device 5 to be mixed with the foam liquid to generate compressed foam, an FAS system detects a deflagration area in an external lithium battery energy storage prefabricated cabin, signals are transmitted to a control system linked with the FAS, the control system controls the opening and closing of a compressed foam supply device, a control area selection valve 61 is opened to convey the foam into the lithium battery energy storage prefabricated cabin in which a fire occurs, the compressed air foam discharge device 7 is used for discharging, the lithium battery energy storage prefabricated cabin is completely filled, batteries are completely immersed in the foam, oxygen is isolated to rapidly extinguish the fire, deflagration of battery modules or monomers which generate heat out of control is bound in the package of the foam, the explosion equivalent is reduced, the FAS system detects that the disk explosion device is started as long as the air pressure in the room is too high, the pressure in the lithium battery energy storage prefabricated room is released in a directional mode, meanwhile, inflammable, explosive and toxic gas generated by deflagration is discharged out of the lithium battery energy storage prefabricated room, and compressed air foam is automatically and continuously provided in an intermittent mode, so that the continuous and effective fire extinguishing effect is achieved, the fire can be quickly suppressed in a short time, and the loss is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The phrase "comprising a defined element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prefabricated cabin submergence formula of lithium cell is put out a fire and directional pressure release explosion-proof equipment which characterized in that: the fire-fighting shelter comprises a CAFS fire-fighting shelter (1), wherein a compressed foam supply device is integrally installed in the CAFS fire-fighting shelter (1);
the compressed foam supply device comprises a transition water tank (2) communicated with a municipal water supply pipeline and used for storing water sources;
the output intercommunication of transition water tank (2) has water pump (3), the input of water pump (3) with the output intercommunication of transition water tank (2), the output intercommunication of water pump (3) has foam generating device (5), so that the water source of storage in transition water tank (2) can be inputed in the foam generating device (5), the input of foam generating device (5) still intercommunication has air compressor machine (4), be used for to foam generating device (5) provide compressed air, with the foam liquid in foam generating device (5) mixes and generates the compression foam.
2. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 1, is characterized in that: the output end of the foam generating device (5) is communicated with a conveying pipeline (6), and a plurality of area selection valves (61) corresponding to different areas in the external lithium battery energy storage prefabricated cabin are fixedly arranged in the conveying pipeline (6).
3. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 2, wherein: and a compressed air foam spraying device (7) communicated with the output end of the area selection valve (61) is arranged in the external lithium battery energy storage shelter, and the compressed air foam spraying device (7) comprises a spray head and a release pipe.
4. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 3, wherein: the fire extinguishing system comprises a control system which is arranged in an external control room and is linked with FAS, and is used for controlling the starting of the fire extinguishing system, opening the water pump (3) of each valve, and connecting the foam generating device (5) with the control system through signals.
5. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 4, wherein: and a sensor for measuring the flow and pressure of the foam is arranged at the outlet of the foam generating device (5).
6. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 5, is characterized in that: the output end of the transition water tank (2) is also communicated with an external fire hydrant.
7. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 6, wherein: the top of the prefabricated cabin of outside lithium cell energy storage is provided with explodes the dish device, explode the input of dish device with control system's output end signal connection.
8. The immersed fire extinguishing and directional pressure relief explosion-proof device for the prefabricated cabin of the lithium battery as claimed in claim 7, wherein: the explosion disc device is an explosion-proof butterfly valve, the input end of the explosion disc device is communicated with the interior of the lithium battery energy storage prefabricated cabin, and the output end of the explosion disc device penetrates through the lithium battery energy storage prefabricated cabin and extends to the outside of the lithium battery energy storage prefabricated cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361389.0U CN216908965U (en) | 2021-09-28 | 2021-09-28 | Immersion type fire extinguishing and directional pressure relief explosion-proof device for prefabricated cabin of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361389.0U CN216908965U (en) | 2021-09-28 | 2021-09-28 | Immersion type fire extinguishing and directional pressure relief explosion-proof device for prefabricated cabin of lithium battery |
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| Publication Number | Publication Date |
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| CN216908965U true CN216908965U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122361389.0U Active CN216908965U (en) | 2021-09-28 | 2021-09-28 | Immersion type fire extinguishing and directional pressure relief explosion-proof device for prefabricated cabin of lithium battery |
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| CN (1) | CN216908965U (en) |
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2021
- 2021-09-28 CN CN202122361389.0U patent/CN216908965U/en active Active
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