CN220175911U - Battery fire extinguishing system - Google Patents
Battery fire extinguishing system Download PDFInfo
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- CN220175911U CN220175911U CN202321288511.9U CN202321288511U CN220175911U CN 220175911 U CN220175911 U CN 220175911U CN 202321288511 U CN202321288511 U CN 202321288511U CN 220175911 U CN220175911 U CN 220175911U
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- battery
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- assembly
- fire extinguishing
- controller
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- 238000005507 spraying Methods 0.000 claims abstract description 116
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 52
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000001629 suppression Effects 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 12
- 230000000712 assembly Effects 0.000 abstract description 11
- 238000000429 assembly Methods 0.000 abstract description 11
- 238000009792 diffusion process Methods 0.000 abstract description 9
- 238000004146 energy storage Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion 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
- 238000012423 maintenance Methods 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- 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
Abstract
The utility model relates to the technical field of fire extinguishment, in particular to a battery fire extinguishing system, which is applied to a battery system and comprises: the spraying device comprises a controller, a fire extinguishing agent spraying component and a standby battery, wherein the standby battery is detachably connected with the fire extinguishing agent spraying component; the signal detection device is electrically connected with the controller; the first ends of the partition injection pipelines are communicated with the fire extinguishing agent injection assemblies, the second ends of the partition injection pipelines are communicated with one group of battery assemblies, the partition injection pipelines are provided with first switches, and the first switches are used for controlling the single or multiple on-off of the fire extinguishing agent injection assemblies and the battery assemblies so as to realize single or multiple injection; the standby battery in the utility model can be replaced independently, and the whole replacement of the spraying device is not needed, so that the standby battery is more convenient to disassemble; meanwhile, the partition protection is realized, and the thermal runaway diffusion of the battery component is avoided; meanwhile, fire suppression and cooling can be continuously carried out on the battery assembly, and the safety of the working environment of the battery assembly is improved.
Description
Technical Field
The utility model relates to the technical field of fire extinguishment, in particular to a battery fire extinguishing system.
Background
At present, the fire-fighting equipment of the energy storage power station or the electric ship with the prefabricated cabin type lithium iron phosphate battery mainly selects the traditional pipe network type or the prefabricated type heptafluoropropane fire-extinguishing device, only the whole energy storage power station or the battery cabin of the electric ship is subjected to large-space total flooding protection, the large-space total flooding protection is only one-time injection, continuous cooling and continuous inhibition cannot be realized, the protection effect is not obvious enough, and the energy storage power station of the traditional pipe network type or the prefabricated type heptafluoropropane fire-extinguishing device is subjected to explosion. Meanwhile, as the battery compartment of the whole energy storage power station or the electric ship is larger, when the large space is submerged for protection, the cooling medium is insufficient to fill the whole battery compartment for fire extinguishment, even if the whole battery compartment can be filled, the fire extinguishment effect is not obvious, the fire extinguishment and the cooling cannot be continuously carried out, and the problem of secondary afterburning of thermal runaway of the battery pack cannot be solved;
meanwhile, the service life of a standby battery in the existing fire extinguishing device is only three years, which is far lower than the design life of an energy storage power station and the fire extinguishing device; when the standby battery is out of electricity, the fire extinguishing device is required to be detached as a whole, and the replacement of the standby battery can be performed, but the disassembly and assembly workload of the fire extinguishing device is large due to the small installation space of the energy storage power station.
Based on the shortcomings of the prior art, there is an urgent need to study a battery fire extinguishing system to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a battery fire extinguishing system, wherein a standby battery is detachably connected with a fire extinguishing agent spraying component, and when the standby battery needs to be replaced, the standby battery can be independently replaced without integrally replacing a spraying device, so that the standby battery is more convenient to detach, and the workload of replacing and maintaining the standby battery is greatly reduced; meanwhile, the partition protection of the battery assembly is realized, the thermal runaway diffusion of the battery assembly is avoided, and the occurrence of fire is avoided; meanwhile, the fire suppression and cooling can be continuously carried out on the battery assembly, so that the thermal diffusion, reburning or explosion of the battery assembly can be avoided, and the safety of the working environment of the battery assembly can be improved.
The utility model provides a battery fire extinguishing system, which is applied to a battery system comprising at least two groups of battery components, and comprises:
the spraying device comprises a controller, a fire extinguishing agent spraying component and a standby battery, wherein the standby battery is detachably connected with the fire extinguishing agent spraying component;
the signal detection device is arranged on the battery assembly and is electrically connected with the controller;
the fire extinguishing agent spraying device comprises at least two groups of partition spraying pipelines, wherein the first ends of the partition spraying pipelines are communicated with the fire extinguishing agent spraying components, the second ends of the partition spraying pipelines are communicated with one group of battery components, a first switch is arranged on each partition spraying pipeline and is electrically connected with the controller, and the first switch is used for controlling the single or multiple on-off of the fire extinguishing agent spraying components and the battery components so as to realize single or multiple spraying.
Further, the fire extinguishing agent spraying component comprises a connecting component, and the standby battery is fixedly connected with the connecting component;
the controller is respectively and electrically connected with the standby battery and the fire extinguishing agent spraying component;
the standby battery is detachably connected with the fire extinguishing agent spraying assembly through the connecting assembly.
Further, the connection assembly includes a connector and a fastener;
the connecting piece is fixedly connected with the standby battery, and the connecting piece is detachably connected with the fire extinguishing agent spraying assembly through the fastening piece.
Further, the zone injection line comprises an injection main line and at least one injection branch line;
a first end of the injection main path is communicated with the fire extinguishing agent injection assembly, and a second end of the injection main path is communicated with the at least one injection branch path;
the spraying branch is provided with at least one nozzle, and the nozzle is arranged on the battery box of the battery assembly and is communicated with the inner cavity of the battery box.
Further, the fire extinguishing agent spraying assembly includes a spraying container and a second switch;
the second switch is respectively communicated with the first switch and the air outlet end of the spraying container.
Further, the fire extinguishing agent spraying assembly further comprises a pressure detection device for detecting the pressure of the spraying container, the pressure detection device is electrically connected with the controller, and the pressure detection device is communicated with the spraying container.
Further, the power supply switching device is also included;
the power supply switching device comprises a third switch, an external power supply path and a standby battery power supply path, and the external power supply path and the standby battery power supply path are arranged in parallel; the third switch is arranged inside or outside the controller and is electrically connected with the controller;
the controller controls the on-off of the external power supply path and the standby battery supply path and the charging or discharging of the standby battery by controlling the third switch; the external power supply path is used for being electrically connected with a power supply, the standby battery power supply path is electrically connected with the standby battery, and the controller is respectively electrically connected with the power supply and the standby battery.
Further, the device also comprises a warning component;
the controller is electrically connected with the warning component and the battery component respectively.
Further, at least one battery support is also included;
the battery assembly can be fixedly connected with the battery bracket.
Further, the signal detection device comprises at least two signal detection pieces;
the signal detection member is disposed on the battery assembly.
The embodiment of the utility model has the following beneficial effects:
according to the utility model, the standby battery is detachably connected with the fire extinguishing agent spraying component, and when the standby battery needs to be replaced, the standby battery can be replaced independently without integrally replacing the spraying device, so that the standby battery is more convenient to detach, and the workload of replacing and maintaining the standby battery is greatly reduced; meanwhile, at least two groups of partition spray pipelines are arranged to spray and cool at least two groups of battery components, so that partition protection of the battery components is realized, thermal runaway diffusion of the battery components is avoided, and fire disaster is avoided; meanwhile, the first switch on the partition spraying pipeline is controlled to control the on-off of the fire extinguishing agent spraying component and the battery component, the battery component with thermal runaway is precisely sprayed for multiple times, the battery component can be continuously subjected to fire suppression and cooling, the thermal diffusion, afterburning or explosion of the battery component are avoided, and the safety of the working environment of the battery component is improved.
Drawings
In order to more clearly illustrate the technical solution of the present utility model, the following description will make a brief introduction to the drawings used in the description of the embodiments or the prior art. It should be apparent that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained from these drawings without inventive effort to those of ordinary skill in the art.
Fig. 1 is a block diagram of a battery fire extinguishing system according to the present embodiment;
fig. 2 is a structural view of the injection device according to the present embodiment.
Wherein, the reference numerals in the figures correspond to:
1-a spraying device; a 2-cell assembly; 3-zone injection lines; 4-a signal detecting member; 5-warning components; 6-a power supply; 7-a battery holder; 11-a controller; 12-a standby battery; 13-a spray container; 14-a drive assembly; 15-a second switch; 16-pressure detection means; 17-a connection assembly; 18, a box body; 21-a battery box; 31-nozzles; 32-a first switch; 33-spraying main way; 34-spray branch; 35-signal feedback means; 36-partitioning module; 171-a connector; 172-fasteners.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
Aiming at the defects of the prior art, the utility model realizes the partition protection of the battery assembly by arranging at least two groups of partition injection pipelines to carry out injection cooling on at least two groups of battery assemblies, thereby avoiding the thermal runaway diffusion of the battery assembly and avoiding the occurrence of fire; meanwhile, the first switch on the partition spraying pipeline is controlled to control the on-off of the fire extinguishing agent spraying component and the battery component, the battery component with thermal runaway is precisely sprayed for multiple times, the battery component can be continuously subjected to fire suppression and cooling, the thermal diffusion, afterburning or explosion of the battery component are avoided, and the safety of the working environment of the battery component is improved.
Referring to fig. 1-2, the present embodiment provides a battery fire extinguishing system applied to a battery system including at least two sets of battery modules 2, including: the spraying device 1 comprises a controller 11, a fire extinguishing agent spraying component and a standby battery 12, wherein the standby battery 12 is detachably connected with the fire extinguishing agent spraying component; the signal detection device is arranged on the battery assembly 2 and is electrically connected with the controller 11; the fire extinguishing agent spraying system comprises at least two groups of partition spraying pipelines 3, wherein the first ends of the partition spraying pipelines 3 are communicated with fire extinguishing agent spraying components, the second ends of the partition spraying pipelines 3 are communicated with one group of battery components 2, a first switch 32 is arranged on the partition spraying pipelines 3, the first switch 32 is electrically connected with a controller 11, and the first switch 32 is used for controlling the single or multiple on-off of the fire extinguishing agent spraying components and the battery components 2 so as to realize single or multiple spraying.
It should be noted that: the embodiment is applied to a battery system comprising at least two groups of battery assemblies 2, and the standby battery 12 in the embodiment is detachably connected with the fire extinguishing agent spraying assembly, when the standby battery 12 needs to be replaced, the standby battery 12 can be replaced independently, and the spraying device 1 does not need to be replaced integrally, so that the standby battery 12 is more convenient to detach, and the workload of replacing and maintaining the standby battery 12 is greatly reduced; meanwhile, at least two groups of partition injection pipelines 3 are arranged to perform injection cooling on at least two groups of battery assemblies 2, so that partition protection on the battery assemblies 2 is realized, and the thermal runaway diffusion of the battery assemblies 2 can be avoided on the basis of inhibiting fire and cooling down, so that the occurrence of fire is avoided; meanwhile, the first switch 32 on the partition spraying pipeline 3 is controlled by the controller 11, so that the on-off of the fire extinguishing agent spraying component and the battery component 2 is controlled, the battery component 2 with thermal runaway is precisely sprayed for multiple times, the battery component 2 can be continuously subjected to fire suppression and cooling, the thermal diffusion, re-combustion or explosion of the battery component 2 are avoided, and the safety of the working environment of the battery component 2 is improved.
The embodiment can avoid the waste of fire extinguishing medium caused by the total flooding of the large space of the cell assembly 2; through carrying out accurate spraying to the battery box 21 that takes place thermal runaway in the battery pack 2, realize avoiding extravagant extinguishing medium's basis on, reach fine fire extinguishing effect, and then improve battery pack 2 operational environment's security.
In some possible embodiments, the fire suppression agent spray assembly includes a connection assembly 17, and the backup battery 12 is fixedly connected to the connection assembly 17; the controller 11 is electrically connected with the standby battery 12 and the fire extinguishing agent spraying component respectively; the spare battery 12 is detachably connected with the fire extinguishing agent spraying component through the connecting component, when the spare battery 12 needs to be replaced, the spraying device 1 does not need to be replaced integrally, the disassembly is convenient, and the workload of replacing and maintaining the spare battery 12 is greatly reduced.
In some possible embodiments, the connection assembly 17 includes a connector 171 and a fastener 172; the connecting piece 171 is fixedly connected with the standby battery 12, the connecting piece 171 is detachably connected with the fire extinguishing agent spraying assembly through the fastening piece 172, the connecting piece 171 is convenient to detach, the replacement speed of the standby battery 12 is improved, and the workload of replacement and maintenance of the standby battery 12 is further reduced.
In some possible embodiments, the zone injection line comprises an injection main 33 and at least one injection branch 34; the first end of the main spray path 33 communicates with the fire suppressant spray assembly, and the second end of the main spray path 33 communicates with at least one spray branch 34; the spraying branch 34 is provided with at least one nozzle 31, the nozzle 31 is arranged on the battery box 21 of the battery assembly 2 and is communicated with the inner cavity of the battery box 21, and the spraying branch 34 is correspondingly arranged with a plurality of battery boxes 21 in the battery assembly 2 by arranging the spraying main path 33 and at least one spraying branch 34, so that the spraying branch 34 can spray and cool the plurality of battery boxes 21 in the battery assembly 2, and the battery boxes 21 with thermal runaway can be precisely cooled.
In some possible embodiments, the fire suppression agent spray assembly includes a spray container 13 and a second switch 15; the second switch 15 is respectively communicated with the first switch 32 and the air outlet end of the spraying container 13, and by arranging the second switch 15, when the first switch 32 cannot be closed, the fire extinguishing medium in the spraying device 1 is prevented from entering the battery assembly 2 to be cooled down when the battery assembly 2 does not need to be cooled down by controlling the on-off of the second switch 15, so that unnecessary waste is caused.
In some possible embodiments, the fire extinguishing agent spraying assembly further comprises a pressure detection device 16 for detecting the pressure of the spraying container 13, the pressure detection device 16 is electrically connected with the controller 11, the pressure detection device 16 is communicated with the spraying container 13, and the pressure of the spraying container 13 is monitored through the pressure detection device 16, so that when the pressure of the spraying container 13 is too high, the pressure of the spraying container 13 can be timely relieved, and the safety of the working environment is improved; and can in time remind operating personnel to change injection container 13 when injection container 13 pressure is too low, avoid the unable condition of in time cooling down battery assembly 2 of injection container 13 to appear.
In some possible embodiments, the battery fire suppression system further comprises a power supply switching device; the power supply switching device comprises a third switch, an external power supply path and a standby battery power supply path, and the external power supply path and the standby battery power supply path are connected in parallel; the third switch is arranged inside or outside the controller 11 and is electrically connected with the controller 11; the controller 11 controls the on-off of the external power supply path and the standby battery power supply path and the charging or discharging of the standby battery by controlling the third switch; the external power supply path is used for being electrically connected with the power supply 6, the standby battery power supply path is electrically connected with the standby battery 12, and the controller 11 is respectively electrically connected with the power supply 6 and the standby battery 12; the power supply switching device is arranged to control the power supply path of the standby battery to be conducted when the power supply 6 cannot supply power, so that the standby battery 12 can supply power to the battery fire extinguishing system, the running stability of the battery fire extinguishing system is guaranteed, the battery system is protected in real time, meanwhile, the controller 11 can control the power supply 6 to charge the standby battery 12, the service time of the standby battery 12 is prolonged, the standby battery 12 is prevented from being disassembled, and the workload of replacing the standby battery 12 is reduced.
In some possible embodiments, the battery fire suppression system further comprises a warning assembly 5; the controller 11 is electrically connected with the warning component 5 and the battery component 2 respectively.
In some possible embodiments, at least one battery support 7 is also included; the battery assembly 2 can be fixedly connected with a battery holder 7.
In some possible embodiments, the signal detection means comprise at least two signal detection members 4; the signal detection part 4 is arranged on the battery assembly 2, and the controller 11 can quickly acquire the thermal runaway condition of the battery assembly 2 by arranging the signal detection part 4, so that the quick response of the battery fire extinguishing system is realized.
Referring to fig. 1-2, the present embodiment provides a battery fire extinguishing system applied to a battery system including at least two sets of battery modules 2, including: the spraying device 1 comprises a controller 11, a fire extinguishing agent spraying component and a standby battery 12, wherein the standby battery 12 is detachably connected with the fire extinguishing agent spraying component; the signal detection device is arranged on the battery assembly 2 and is electrically connected with the controller 11; the fire extinguishing agent spraying system comprises at least two groups of partition spraying pipelines 3, wherein the first ends of the partition spraying pipelines 3 are communicated with fire extinguishing agent spraying components, the second ends of the partition spraying pipelines 3 are communicated with one group of battery components 2, a first switch 32 is arranged on the partition spraying pipelines 3, the first switch 32 is electrically connected with a controller 11, and the first switch 32 is used for controlling the single or multiple on-off of the fire extinguishing agent spraying components and the battery components 2 so as to realize single or multiple spraying.
Specifically, the controller 11 is electrically connected with the first switch 32, and the controller 11 controls the on-off state of the first switch 32, so that the fire extinguishing medium can be turned off after being sprayed for a certain time, and the fire extinguishing medium is continuously sprayed after a certain time interval, sprayed for multiple times, continuously cooled, and continuously maintained in fire extinguishing concentration or inerting concentration.
Along the flow direction of the extinguishing medium, the spray container 13, the second switch 15, the spray main 33, the first switch 32, the spray branch 34 and the nozzle 31 are arranged in this order.
In particular, the battery backup 12 may be a lead acid battery, a lithium ion battery, or a sodium ion battery.
In some possible embodiments, the number of fasteners 172 is not limited, so long as the connection assembly 17 is secured to the housing 18 in a detachable manner.
Preferably, the number of fasteners 172 is four, with four fasteners 172 being spaced apart on the connection assembly 17.
Further, the specific structure of the connection member 171 is not limited as long as it is ensured that the connection member 171 can fix the backup battery 12.
Specifically, the connector 171 is a drawer-type structure, which may be a detachable mounting plate, a mounting box, or a mounting bracket.
In some possible embodiments, the connection assembly 17 further includes a fixing bracket fixedly connected with the connection member 171 and the battery backup 12, respectively.
Specifically, the fasteners 172 may be screws, bolts, studs, rivets, bolts, or mortise and tenon structures.
Specifically, the first switch 32 is an electric valve or an electric/manual valve.
In some possible embodiments, the fire suppression agent injection assembly further comprises a drive assembly 14; the driving assembly 14 is disposed on the ejection container 13, and the driving assembly 14 communicates with the air outlet end of the ejection container 13 and the second switch 15, respectively.
Specifically, the specific structure of the driving assembly 14 is not limited as long as it is ensured that the driving assembly 14 can pump the fire extinguishing medium in the spraying container 13 into the zone separation spraying pipes.
Specifically, the drive assembly 14 is an electric or electric/manual drive.
Further, the fire extinguishing medium is not limited to liquid, but may be gas, gas-liquid two-phase flow, composite liquid (such as emulsion, suspension, etc.), solid-liquid two-phase medium, or gas-solid-liquid three-phase medium.
Specifically, the fire extinguishing medium is a fire extinguishing agent such as perfluoro-hexanone, heptafluoropropane and carbon dioxide, or a medium such as a coolant.
In some possible embodiments, the nozzle 31 is installed in the battery box 21, and the fire extinguishing medium can directly contact the battery cell with thermal runaway during spraying, perform accurate spraying and cool down.
Still further, the signal detecting member 4 is disposed in the battery box 21 of the battery assembly 2, and detects the running state of the battery cell in the battery box 21 in real time, once the battery cell in the battery box 21 is out of control, the signal detecting member 4 can detect the battery box 21 at a specific position at the first time to be out of control, and can realize accurate spraying, cooling down, and inhibit fire rapidly.
In some possible embodiments, the battery assembly 2 includes at least one battery box 21, the signal detecting element 4 and the battery box 21 are arranged in a one-to-one correspondence, the signal detecting element 4 is used for obtaining the operation state of the electric core in the battery box 21, once the electric core in one battery box 21 is found to generate thermal runaway, a signal is immediately fed back to the controller 11, the controller 11 sends an alarm signal through logic judgment, and the fire extinguishing medium in the spraying container 13 is sprayed into the battery box 21 of the corresponding battery bracket 7 through the partition spraying pipeline and the nozzle 31, so that the effect of accurate spraying is achieved.
In some possible embodiments, the battery holders 7 are arranged in a one-to-one correspondence with the partition spraying pipelines 3, so that the battery assemblies 2 of different partitions are arranged on different battery holders 7, and other battery assemblies 2 are prevented from being influenced when thermal runaway occurs in one battery assembly 2.
Specifically, the battery support 7 includes at least one accommodation site for accommodating the battery boxes, and the accommodation site is located in the one-to-one correspondence of the battery boxes.
In some possible embodiments, pressure sensing device 16 is a pressure gauge, a pressure watchband switch, a pressure switch, a signal feedback device, or a pressure transmitter.
In some possible embodiments, the spraying device 1 further comprises a box 18 with an open end, and the connecting component 17 forms a closed space after being fixedly connected with the box 18; the backup battery 12 and the ejection container 13 are disposed in the closed space.
In some possible embodiments, when thermal runaway occurs in the battery assembly 2, the controller 11 simultaneously sends an alarm signal to the alarm assembly 5, and the alarm assembly 5 displays alarm information.
Further, the warning unit 5 may be a device capable of displaying warning information, and is not limited herein.
Preferably, the warning component 5 comprises an in-box audible and visual warning device, an out-box audible and visual warning device and a deflation indicator lamp, and the warning information is displayed through the devices.
In some possible embodiments, the partition injection pipeline 3 is provided with a signal feedback device 35, the signal feedback device 35 is electrically connected with the controller 11, the signal feedback device 35 can obtain fire extinguishing medium information flowing through the partition injection pipeline, when the fire extinguishing medium flows through the signal feedback device 35, the signal feedback device 35 can send a signal that the fire extinguishing medium is injected to the controller 11, so that the injection device 1 can perform injection management conveniently.
In another possible embodiment, the partition device is disposed on the partition spraying pipeline 3, and the partition device includes a signal feedback device 35 and a partition module 36 that are electrically connected to each other, where the partition module 36 is electrically connected to the first switch 32, the signal feedback device 35 can obtain the fire extinguishing medium flowing through the partition module, and when the fire extinguishing medium flows through the signal feedback device 35, the signal feedback device 35 sends a signal that the fire extinguishing medium has been sprayed to the partition module 36, so that the spraying device 1 is convenient for performing spraying management.
Specifically, the signal detecting element 4 is a single or random combination of a smoke sensor, a temperature sensor, a CO sensor, a hydrogen sensor, a VOC sensor and a flammable gas sensor, the signal detecting element 4 sends out-of-control information to the controller 11, and the controller 11 controls the spraying device 1 and the partition spraying pipeline 3 to work according to the out-of-control information, so that the thermal out-of-control battery assembly 2 is cooled.
Specifically, the signal detection pieces 4 are arranged in one-to-one correspondence with the battery boxes 21, and the signal detection pieces 4 are arranged in each battery box 21, so that the state of the battery cells in each battery box 21 is monitored, and quick response and accurate injection are realized.
The working process of the battery fire extinguishing system comprises the following steps: the signal detection part 4 acquires the state information of the battery assembly 2 in real time and sends the state information to the controller 11, the controller 11 judges whether the battery assembly 2 is in thermal runaway according to the state information, when the battery assembly 2 is in thermal runaway, the controller 11 controls the driving assembly 14, the second switch 15 and the first switch 32 corresponding to the area where the thermal runaway battery assembly 2 is positioned to be opened, and the fire extinguishing medium in the spraying container 13 is sprayed to the thermal runaway area through the driving assembly 14, the second switch 15, the first switch 32 on the spraying main path 33, the spraying branch 34 and the spraying nozzle 31, so that accurate spraying is realized; when the injection device 1 injects for a certain time, the controller 11 controls the first switch 32 and the second switch 15 to be turned off, and after a certain time interval, the controller 11 controls the first switch 32 and the second switch 15 to be turned on, and the above steps are repeated, so that the thermal runaway position of the battery assembly 2 is injected for a plurality of times.
While the utility model has been described in terms of preferred embodiments, the utility model is not limited to the embodiments described herein, but encompasses various changes and modifications that may be made without departing from the scope of the utility model.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the claimed utility model.
The embodiments and features of the embodiments described herein can be combined with each other without conflict.
The above disclosure is only a preferred embodiment of the present utility model, and it is needless to say that the scope of the utility model is not limited thereto, and therefore, the equivalent changes according to the claims of the present utility model still fall within the scope of the present utility model.
Claims (10)
1. A battery fire extinguishing system applied to a battery system comprising at least two sets of battery packs (2), characterized by comprising:
the spraying device (1) comprises a controller (11), a fire extinguishing agent spraying assembly and a standby battery (12), wherein the standby battery (12) is detachably connected with the fire extinguishing agent spraying assembly;
the signal detection device is arranged on the battery assembly (2) and is electrically connected with the controller (11);
the fire extinguishing agent spraying device comprises at least two groups of partition spraying pipelines (3), wherein a first end of each partition spraying pipeline (3) is communicated with each fire extinguishing agent spraying component, a second end of each partition spraying pipeline (3) is communicated with one group of each battery component (2), a first switch (32) is arranged on each partition spraying pipeline (3), the first switch (32) is electrically connected with the controller (11), and the first switch (32) is used for controlling the fire extinguishing agent spraying components to be connected with the battery components (2) in a single or multiple mode so as to realize single or multiple spraying.
2. The battery fire suppression system according to claim 1, wherein the fire suppression agent spray assembly includes a connection assembly (17) to which the battery backup (12) is fixedly connected;
the controller (11) is electrically connected with the standby battery (12) and the fire extinguishing agent spraying component respectively;
the standby battery (12) is detachably connected with the fire extinguishing agent spraying assembly through the connecting assembly (17).
3. The battery fire suppression system according to claim 2, wherein the connection assembly (17) comprises a connector (171) and a fastener (172);
the connecting piece (171) is fixedly connected with the standby battery (12), and the connecting piece (171) is detachably connected with the fire extinguishing agent spraying assembly through the fastening piece (172).
4. The battery fire suppression system according to claim 1, wherein the zone-divided injection line comprises an injection main line (33) and at least one injection branch line (34);
-a first end of the main injection path (33) communicates with the fire extinguishing agent injection assembly, and a second end of the main injection path (33) communicates with the at least one injection branch (34);
the spraying branch (34) is provided with at least one nozzle (31), and the nozzle (31) is arranged on the battery box (21) of the battery assembly (2) and is communicated with the inner cavity of the battery box (21).
5. A battery fire suppression system according to claim 1, characterized in that the fire suppression agent spray assembly comprises a spray container (13) and a second switch (15);
the second switch (15) is respectively communicated with the first switch (32) and the air outlet end of the spraying container (13).
6. A battery fire suppression system according to claim 5, wherein the fire suppression agent injection assembly further comprises a pressure detection device (16) for detecting the pressure of the injection vessel (13), the pressure detection device (16) being electrically connected to the controller (11), and the pressure detection device (16) being in communication with the injection vessel (13).
7. The battery fire suppression system of claim 2, further comprising a power switching device;
the power supply switching device comprises a third switch, an external power supply path and a standby battery power supply path, and the external power supply path and the standby battery power supply path are arranged in parallel; the third switch is arranged inside or outside the controller (11), and is electrically connected with the controller (11);
the controller (11) controls the on-off of the external power supply path and the standby battery power supply path and the charging or discharging of the standby battery by controlling the third switch; the external power supply path is used for being electrically connected with the power supply (6), the standby battery power supply path is electrically connected with the standby battery (12), and the controller (11) is electrically connected with the power supply (6) and the standby battery (12) respectively.
8. The battery fire suppression system according to any one of claims 1-7, further comprising a warning assembly (5);
the controller (11) is electrically connected with the warning component (5) and the battery component (2) respectively.
9. The battery fire suppression system according to any one of claims 1-7, further comprising at least one battery holder (7);
the battery assembly (2) can be fixedly connected with the battery bracket (7).
10. A battery fire suppression system according to any one of claims 1-7, characterized in that the signal detection means comprises at least two signal detection members (4);
the signal detection member (4) is provided on the battery assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321288511.9U CN220175911U (en) | 2023-05-25 | 2023-05-25 | Battery fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321288511.9U CN220175911U (en) | 2023-05-25 | 2023-05-25 | Battery fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220175911U true CN220175911U (en) | 2023-12-15 |
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ID=89098950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321288511.9U Active CN220175911U (en) | 2023-05-25 | 2023-05-25 | Battery fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220175911U (en) |
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2023
- 2023-05-25 CN CN202321288511.9U patent/CN220175911U/en active Active
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