CN113921984A - Device and method for treating battery thermal runaway flue gas - Google Patents
Device and method for treating battery thermal runaway flue gas Download PDFInfo
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- CN113921984A CN113921984A CN202111154438.1A CN202111154438A CN113921984A CN 113921984 A CN113921984 A CN 113921984A CN 202111154438 A CN202111154438 A CN 202111154438A CN 113921984 A CN113921984 A CN 113921984A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 239000003546 flue gas Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 119
- 238000002485 combustion reaction Methods 0.000 claims abstract description 55
- 238000012545 processing Methods 0.000 claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 claims description 70
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 69
- 239000003063 flame retardant Substances 0.000 claims description 30
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 29
- 238000013459 approach Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 22
- 238000004146 energy storage Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 16
- 238000004880 explosion Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a device and a method for processing battery thermal runaway flue gas, and belongs to the technical field of energy storage batteries. The invention collects the smoke discharged from the smoke outlet end through the combustion cavity, and facilitates the smoke ignition device to carry out centralized combustion treatment on the combustible gas.
Description
Technical Field
The invention belongs to the technical field of energy storage batteries, relates to a technology for processing thermal runaway combustible gas of an energy storage battery, and particularly relates to a device and a method for processing thermal runaway flue gas of the battery.
Background
Energy storage battery if the misoperation can lead to the inside short circuit of battery or overcharge in the use for the inside a large amount of heats that produces of battery, the inside temperature of battery sharply risees, and when the temperature reached the limit, the thermal balance of battery will be destroyed, causes a series of self-heating side reaction, produces a large amount of combustible gas, appears "thermal runaway" phenomenon, finally can lead to the inside ignition of battery, causes the explosion when serious, causes the hidden danger to user's personal safety.
The prior art mainly considers the fire extinguishing in the battery to prevent the fire from spreading; for example: the invention discloses an automatic fire extinguishing device of a battery box, which is disclosed with a notice number of CN205964755U, and comprises an inductor, an automatic controller, a fire extinguishing agent container, a transmission pipeline and a pressure release valve, wherein when the inductor senses that the temperature in the battery box reaches a limit value, the automatic controller controls a fire extinguisher in the fire extinguishing agent container to enter the battery box through the transmission pipeline, so that open fire in the battery box is extinguished, and meanwhile, the hidden fire of a battery core is extinguished; the invention discloses an automatic fire extinguishing device for a battery box of an electric automobile, which is characterized in that a fire extinguishing agent pipeline is fixed on a strip-shaped metal sheet suspension in the battery box, a fire detecting pipe which extends downwards and vertically is arranged at the center of each fire extinguishing agent pipeline, and when the fire is caught in the battery box, the heat detecting pipe closest to a fire source is heated and broken, so that the fire extinguishing agent can quickly and effectively extinguish the fire source. Although the two devices can prevent the battery box from exploding, the inductor or the heat detecting tube arranged in the battery box is easily damaged by fire to cause the phenomenon of incapability of detection, and the potential safety hazard is increased. In the prior art, combustible gas generated by thermal runaway in the battery box is discharged out of the battery box, but the combustible gas directly discharged out of the battery box is uncontrollable, so that explosion is easily caused, and meanwhile, the environment is polluted.
Disclosure of Invention
The invention provides a device and a method for processing battery thermal runaway flue gas, aiming at the problems that combustible gas generated by thermal runaway of an internal energy storage battery in the prior art is directly discharged outside a battery box, the combustible gas is uncontrollable, explosion is easy to cause, and meanwhile, the environment is polluted.
The invention is that a burning box is arranged above the smoke outlet end of a lithium battery or a PACK box, a smoke ignition device and a trigger device are arranged in the burning box, the trigger device triggers the smoke ignition device to ignite, the smoke which is discharged from the lithium battery or the PACK box is burnt by the smoke ignition device, the smoke is burnt out and then discharged to the atmosphere; the pollution of combustible gas to the environment is effectively prevented, and the flue gas is the combustible gas; the specific technical scheme is as follows:
the utility model provides a processing apparatus of battery thermal runaway flue gas, the processing apparatus of battery thermal runaway flue gas sets up the flue gas outlet end at lithium cell or PACK case.
Further define, the processing apparatus of battery thermal runaway flue gas includes flue gas ignition, flue gas ignition is used for lighting the flue gas that lithium cell or PACK case thermal runaway discharged.
Further, the smoke ignition device is a pulse type igniter.
Further inject, the processing apparatus of battery thermal runaway flue gas still includes trigger device, trigger device triggers the ignition of flue gas ignition device through the exhaust flue gas pressure of lithium cell or PACK case flue gas outlet end.
Further inject, flue gas ignition and trigger device all set up in the burning cavity in lithium cell or PACK case flue gas exit end outside, trigger device sets up with the flue gas exit end relatively, flue gas ignition sets up in the trigger device top.
Further inject, the burning cavity is the inner chamber of burning case, burning case and lithium cell or PACK case fixed connection.
Further define, trigger device includes the pressure stopper, the pressure stopper sets up the flue gas exit end at lithium cell or PACK case.
Further limiting, the triggering device comprises a longitudinal sliding rod and a triggering block, the longitudinal sliding rod and the triggering block are both arranged in an inner cavity of the combustion box, and the longitudinal sliding rod is fixedly connected with the lithium battery or the PACK box; the trigger block is sleeved on the outer side of the longitudinal sliding rod and is connected with the longitudinal sliding rod in a sliding manner; the trigger block is arranged opposite to the smoke outlet end of the lithium battery or the PACK box, and the smoke ignition device is arranged above the trigger block.
Further inject, the lower terminal surface of trigger block is the arcwall face of indent, the arcwall face sets up with the flue gas outlet end of lithium cell or PACK case relatively.
Further inject, the trigger block is for separating fire material and making, the bottom of trigger block is provided with the arc wall, the arc wall sets up with the flue gas outlet end of lithium cell or PACK case relatively.
Further inject, trigger device still includes stopper and elasticity piece that resets, stopper fixed connection is at the top of vertical slide bar, the stopper resets through elasticity and is connected with the trigger block, stopper and flue gas ignition device fixed connection.
Further limit, the limiting block is fixedly connected with the smoke ignition device through the mounting frame.
Further, a push switch is arranged at the bottom of the smoke ignition device and is opposite to the pressure plug or the trigger block.
Further, the top of the trigger block is provided with a top block, and the top block is arranged opposite to the press switch.
Further limiting, the battery thermal runaway flue gas treatment device further comprises a flame-retardant heat insulation plate, the combustion box and the longitudinal sliding rod are fixedly connected with a lithium battery or a PACK box through the flame-retardant heat insulation plate, a communication hole is formed in the flame-retardant heat insulation plate, the combustion box is communicated with a flue gas outlet end through the communication hole in the flame-retardant heat insulation plate, a pressure relief assembly is arranged at the flue gas outlet end, and the pressure relief assembly penetrates through the flame-retardant heat insulation plate and extends into a combustion cavity of the combustion box; the top of the combustion box is opened.
A method for treating battery thermal runaway flue gas comprises the following steps: the flue gas generated by the thermal runaway of the battery is ignited before being discharged into the atmosphere.
Further limiting, the steps specifically include: the trigger device is pushed to approach the smoke ignition device under the action of the pressure of the smoke discharged from the lithium battery or the PACK box until the trigger device triggers the smoke ignition device to ignite the smoke, and the burned smoke is discharged to the atmosphere.
In a further definition of the method,
the steps are specifically as follows: the pressure plug is pushed out of the smoke outlet end under the action of the pressure of smoke discharged from the lithium battery or the PACK box, and the pressure plug is close to the press switch on the smoke ignition device until the press switch is opened by the pressure plug, so that the smoke ignition device ignites the smoke.
Or the specific steps are as follows: the trigger block is pushed to approach the smoke ignition device under the action of the pressure of smoke discharged from a lithium battery or a PACK box until the top block on the trigger block triggers a press switch on the smoke ignition device to be opened, so that the smoke ignition device ignites the smoke; when the pressure of the smoke exhausted from the smoke outlet end is reduced, the triggering block is restored to the initial state under the action of the elastic restoring piece.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the device for treating the battery thermal runaway flue gas, the flue gas ignition device is arranged on the outer side of the flue gas outlet end of the lithium battery or the PACK box, so that the flue gas discharged from the lithium battery or the PACK box can be conveniently ignited, and the ordered discharge of the flue gas is realized, so that the content of combustible components in the flue gas is greatly reduced, the flue gas is controlled, and the flue gas is prevented from being exploded; the smoke ignition device is arranged in the combustion cavity and used for collecting smoke exhausted from the smoke outlet end through the combustion cavity; and a trigger device is also arranged in the combustion cavity and is opposite to the smoke outlet end, and the trigger device is used for triggering the smoke ignition device to ignite. The combustion cavity can collect the flue gas in a centralized way; the trigger device is pushed by the air pressure of the smoke discharged from the smoke outlet end to move downwards to the smoke ignition device, the switch of the smoke ignition device is triggered, the smoke ignition device is prompted to ignite to burn combustible components in the smoke, and the burned gas is discharged into the atmosphere, so that the pollution of the combustible gas to the atmosphere is avoided; meanwhile, dangerous events such as explosion, fire and the like caused by the gathering of combustible gas in a lithium battery or a PACK box are avoided.
2. The triggering device comprises a pressure plug, the pressure plug is popped out from the smoke outlet end under the action of the instantaneous pressure of smoke, and is close to the smoke ignition device to trigger the smoke ignition device to ignite the smoke, the pressure plug can be opened as long as the smoke pressure reaches the limit pressure value, and the operation is easy to control.
3. The trigger device comprises a longitudinal sliding rod and a trigger block, the trigger block is pushed to slide along the axial direction of the longitudinal sliding rod by the air pressure of the smoke discharged from the smoke outlet end, the trigger block approaches the switch of the smoke ignition device and triggers the switch of the smoke ignition device, so that the smoke ignition device ignites the smoke; the trigger device also comprises a limiting block and an elastic reset piece, the limiting block is fixedly connected to the top of the longitudinal sliding rod, and the trigger block can be prevented from being separated from the longitudinal sliding rod when the air pressure is too high through the limiting block; the stopper passes through the elasticity piece that resets and is connected with the trigger block, and the elasticity piece that resets can restore to the original state after trigger block triggers the switch of flue gas ignition device.
4. The lower end surface of the trigger block is an inwards concave arc-shaped surface, and the stress area of the trigger block is increased by the arc-shaped surface; an arc-shaped groove is arranged at the bottom of the trigger block and is opposite to the smoke outlet end. Can gather atmospheric pressure through the arc wall, strengthened the promotion effect of atmospheric pressure.
5. The limiting block is fixedly connected with the smoke ignition device through the mounting frame, the position of the smoke ignition device is fixed through the mounting frame, and the smoke ignition device is prevented from shaking when the trigger block triggers the switch of the smoke ignition device to influence the trigger effect; the mounting bracket passes through clamp and flue gas ignition device fixed connection, can make things convenient for between mounting bracket and the flue gas ignition device to carry out fixed connection through the clamp.
6. The top of the trigger block is provided with a top block, and the top block is arranged opposite to the press switch; the ejector block can better trigger work, and the switch of the smoke ignition device is triggered more conveniently.
7. The device for treating the battery thermal runaway flue gas also comprises a flame-retardant heat-insulation plate, wherein the combustion box and the longitudinal sliding rod are fixedly connected with the lithium battery or the PACK box through the flame-retardant heat-insulation plate, and the lithium battery or the PACK box is isolated from a trigger device of the flue gas ignition device through the flame-retardant heat-insulation plate in a fireproof and heat-release manner, so that the heat generated by combustion is prevented from influencing an energy storage battery which normally works in the lithium battery or the PACK box.
Drawings
FIG. 1 is a first schematic structural diagram of a device for treating battery thermal runaway flue gas according to the invention;
FIG. 2 is a first schematic diagram of the connection between the trigger device and the lithium battery or the PACK box;
FIG. 3 is a second schematic diagram of the connection between the triggering device and the lithium battery or the PACK box;
FIG. 4 is a schematic structural view of portion A of FIG. 3;
FIG. 5 is a schematic structural diagram of the triggering device;
wherein, 1-lithium battery or PACK box; 2-a pressure relief valve; 3-a combustion box; 301-flame retardant and heat insulating board; 4-longitudinal sliding bar; 5-a flue gas ignition device; 501-pressing a switch; 6-trigger block; 601-lower end face; 602-an arc-shaped slot; 603-a through hole; 604-top block; 7-a limiting block; 8-a mounting frame; 801-a hoop; 9-a return spring.
Detailed Description
The technical solutions of the present invention will be further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
The invention relates to a device for treating battery thermal runaway flue gas, which is arranged at the flue gas outlet end of a lithium battery or a PACK box 1. The battery thermal runaway flue gas treatment device comprises a flue gas ignition device 5, and the flue gas ignition device 5 ignites flue gas exhausted by a lithium battery or a PACK box 1 in a thermal runaway manner. The smoke ignition device 5 is a pulse type igniter. The battery thermal runaway flue gas processing device further comprises a trigger device, and the trigger device triggers the flue gas ignition device 5 to ignite through the pressure of flue gas discharged from the flue gas outlet end of the lithium battery or the PACK box 1. The smoke ignition device 5 and the trigger device are both arranged in a combustion cavity outside the smoke outlet end of the lithium battery or PACK box 1, the trigger device and the smoke outlet end are oppositely arranged, and the smoke ignition device 5 is arranged above the trigger device. The burning cavity is the inner chamber of burning case 3, burning case 3 and lithium cell or PACK case 1 fixed connection. The trigger device comprises a pressure plug, and the pressure plug is arranged at the smoke outlet end of the lithium battery or the PACK box 1. Or the trigger device comprises a longitudinal sliding rod 4 and a trigger block 6, the longitudinal sliding rod 4 and the trigger block 6 are both arranged in the inner cavity of the combustion box 3, and the longitudinal sliding rod 4 is fixedly connected with the lithium battery or the PACK box 1; the trigger block 6 is sleeved outside the longitudinal sliding rod 4 and is connected with the longitudinal sliding rod 4 in a sliding manner; the trigger block 6 is arranged opposite to the smoke outlet end of the lithium battery or PACK box 1, and the smoke ignition device 5 is arranged above the trigger block 6. The lower terminal surface 601 of trigger block 6 is the arcwall face of indent, and the arcwall face sets up with the flue gas outlet end of lithium cell or PACK case 1 relatively. The trigger block 6 is made of a fire-proof material, an arc-shaped groove 602 is arranged at the bottom of the trigger block 6, and the arc-shaped groove is arranged opposite to the smoke outlet end of the lithium battery or the PACK box 1. The trigger device further comprises a limiting block 7 and an elastic resetting piece, the limiting block 7 is fixedly connected to the top of the longitudinal sliding rod 4, the limiting block 6 is connected with the trigger block 6 through the elastic resetting piece, and the limiting block 7 is fixedly connected with the smoke ignition device 5. The limiting block 7 is fixedly connected with the smoke ignition device 5 through a mounting frame 8. The bottom of the smoke ignition device 5 is provided with a push switch 501, and the push switch 501 is arranged opposite to the pressure plug or the trigger block 6. The top of the trigger block 6 is provided with a top block 604, and the top block 604 is arranged opposite to the push switch 501. The battery thermal runaway flue gas treatment device further comprises a flame-retardant insulation board 301, the combustion box 3 and the longitudinal sliding rod 4 are fixedly connected with a lithium battery or a PACK box 1 through the flame-retardant insulation board 301, a communication hole is formed in the flame-retardant insulation board 301, the combustion box 3 is communicated with a flue gas outlet end through the communication hole in the flame-retardant insulation board 301, a pressure relief assembly is arranged at the flue gas outlet end, and the pressure relief assembly penetrates through the flame-retardant insulation board 301 and extends into a combustion cavity of the combustion box 3; the top of the combustion box 3 is open.
Example 1
This embodiment a processing apparatus of battery thermal runaway flue gas sets up the flue gas exit end at lithium cell or PACK case 1. The device comprises a flue gas ignition device 5, wherein the flue gas ignition device 5 ignites flue gas exhausted by thermal runaway of a lithium battery or a PACK box 1. The lithium battery is a single battery formed by a single battery pack; the PACK box is a large-capacity box battery formed by connecting a plurality of lithium batteries in series and parallel.
The smoke ignition device 5 of the present embodiment may be a piezoelectric igniter or a pulse type igniter. Preferably, the smoke ignition device of the present embodiment is a pulse type igniter.
The device for processing battery thermal runaway flue gas of the embodiment further comprises a triggering device, and the triggering device triggers the flue gas ignition device 5 to ignite through the pressure of the flue gas exhausted from the flue gas outlet end of the lithium battery or the PACK box 1. The smoke ignition device 5 and the trigger device are both arranged in a combustion cavity outside the smoke outlet end of the lithium battery or PACK box 1, the trigger device and the smoke outlet end are oppositely arranged, and the smoke ignition device 5 is arranged above the trigger device.
The combustion chamber of the embodiment is an inner chamber of the combustion box 3, an inner chamber of the combustion cloth bag or an inner chamber formed by other combustion gas gathering containers. Preferably, the combustion chamber of this embodiment is the inner chamber of combustion box 3, and combustion box 3 and lithium cell or PACK case 1's top end face fixed connection.
Preferably, the combustion box 3 of the present embodiment is made of a metal material or a high temperature resistant plastic material.
The smoke outlet end of this embodiment is provided with a pressure relief assembly, which penetrates the flame-retardant insulation board 301 and extends into the combustion cavity of the combustion box 3. The pressure relief assembly can be a pressure relief assembly which is a pressure relief valve 2 or a pressure relief rupture disk. Preferably, the pressure relief assembly of the present embodiment is a pressure relief valve 2.
The combustion box 3 of the embodiment is a cylindrical structure with an opening at the top and the bottom, and can be a cylindrical structure, a columnar cylindrical structure, a conical cylindrical structure or a cylindrical structure with other shapes; preferably, the combustion box 3 of the present embodiment has a cylindrical structure. The top opening can in time discharge the gas that burns out, prevents that the explosion danger that produces because gas accumulation leads to the pressure too big in the combustion box 3.
Example 2
The utility model provides a processing apparatus of battery thermal runaway flue gas, on the basis of embodiment 1, the trigger device of this embodiment is the pressure plug, and the pressure plug is pressed at the flue gas exit end of lithium cell or PACK case 1, seals the inner chamber of lithium cell or PACK case 1, and when having flue gas exhaust in the inner chamber of lithium cell or PACK case 1, the pressure plug can be pushed ejecting by the atmospheric pressure of flue gas, and ejecting pressure plug is used for triggering flue gas ignition device 5 and ignites the flue gas.
Example 3
Referring to fig. 1-3, the present embodiment is a battery thermal runaway flue gas processing apparatus, based on embodiment 1, the triggering apparatus includes a longitudinal sliding rod 4 and a triggering block 6, the longitudinal sliding rod 4 and the triggering block 6 are both disposed in a combustion chamber of a combustion box 3, and a bottom end of the longitudinal sliding rod 4 is fixedly connected to a top end face of a lithium battery or a PACK box 1; referring to fig. 5, a through hole 603 running through the trigger block 6 is formed in the trigger block, and the longitudinal slide bar 4 is sleeved outside the longitudinal slide bar 4 through the through hole 603 and is connected with the longitudinal slide bar 4 in a sliding manner, that is, the trigger block 6 can slide along the axial direction of the longitudinal slide bar 4; the trigger block 6 is arranged opposite to the smoke outlet end, and the smoke ignition device is arranged above the trigger block 6.
Preferably, the number of the longitudinal sliding rods 4 is two, and the two longitudinal sliding rods 4 are respectively arranged on two sides above the smoke outlet end, and the two longitudinal sliding rods 4 can improve the sliding stability of the trigger block 6.
The bottom of the smoke ignition device of the embodiment is provided with a push switch 501, the push switch 501 is arranged opposite to the trigger block 6, and the push switch is triggered and opened by the trigger block 6, so that the smoke ignition device 5 is ignited.
Preferably, the smoke ignition device 5 of the present embodiment is a pulse igniter.
The triggering device in the embodiment further comprises a limiting block 7 and an elastic resetting piece, the limiting block 7 is fixedly connected to the top of the longitudinal sliding rod 4, the bottom end face of the limiting block 7 is fixedly connected with one end portion of the elastic resetting piece, the other end portion of the elastic resetting piece is fixedly connected with the triggering block 6, and the limiting block 7 is fixedly connected with the smoke ignition device.
The elastic reset piece is a reset spring 9 or an elastic cushion block, and the elastic cushion block can be made of rubber or plastic materials. Preferably, the elastic restoring member of the present embodiment is a restoring spring 9.
Preferably, the bottom end face of the push switch 501 of this embodiment is located below the bottom end face of the limiting block 7, so that the trigger block 6 can be conveniently contacted with the push switch 501, and the trigger efficiency is improved.
Preferably, the trigger block 6 of the present embodiment is made of a flame retardant material.
Preferably, the trigger block 6 of the present embodiment is a hollow structure, which can reduce the weight of the trigger block 6, so that the trigger block 6 can be pushed more easily.
Preferably, the lower end surface 601 of the trigger block 6 of the present embodiment is an arc surface with a concave central portion, and the arc surface is arranged opposite to the smoke outlet end.
Preferably, in the present embodiment, an arc-shaped groove 602 with a rectangular cross section is arranged at the bottom of the trigger block 6, and the arc-shaped groove 602 is arranged opposite to the smoke outlet end.
Preferably, the trigger block 6 of the present embodiment is made of a fire-proof material for preventing the fire from flowing back into the lithium battery or PACK case 1.
Example 4
Referring to fig. 4, this embodiment is a processing apparatus for battery thermal runaway flue gas, and on the basis of embodiment 3, an installation frame 8 is fixedly installed on a limiting block 7, and clamps 801 are provided at two end portions corresponding to flue gas ignition device 5 on installation frame 8, and flue gas ignition device 5 is fixed through clamps 801, so that push switch 501 of flue gas ignition device 5 is prevented from shaking during triggering of flue gas ignition device 5.
Example 5
In the device for processing battery thermal runaway flue gas of the present embodiment, on the basis of embodiment 4, a top block 604 is fixedly and integrally arranged on the top of a trigger block 6, and the top block 604 is arranged opposite to a push switch 501.
Example 6
The device for treating battery thermal runaway flue gas in the embodiment comprises a flame-retardant heat-insulating plate 301, on the basis of the embodiment 5, the flame-retardant heat-insulating plate 301 is fixedly connected to the top end face of a lithium battery or a PACK box 1, the bottom end face of a combustion box 3 is fixedly connected to the top end face of the flame-retardant heat-insulating plate 301, the top end face of a longitudinal sliding rod 4 is fixedly connected to the top end face of the flame-retardant heat-insulating plate 301, a communicating hole is formed in the flame-retardant heat-insulating plate 301, and the combustion box 3 is communicated with a flue gas outlet end through the communicating hole in the flame-retardant heat-insulating plate 301; the lithium battery or PACK box 1 is isolated from the flue gas ignition device and the trigger device in a fireproof and heat-proof way through the flame-retardant heat insulation plate 301; the pressure relief assembly penetrates through the flame-retardant heat insulation plate 301 and extends into a combustion cavity of the combustion box 3; the top of the combustion box 3 is open.
Preferably, the flame-retardant and heat-insulating board 301 of the embodiment is a rubber plastic board, a foamed fire-proof board or a fireproof rock wool board.
Example 7
An ignition method for treating battery thermal runaway is realized on the basis of the device for treating battery thermal runaway flue gas in any one of embodiments 3 to 4, and the ignition method comprises the following steps: the flue gas generated by the thermal runaway of the battery is ignited before being discharged into the atmosphere.
Preferably, in the method for processing battery thermal runaway flue gas of this embodiment, the triggering device is pushed to approach the flue gas ignition device 5 under the action of the pressure of flue gas discharged from the lithium battery or PACK box 1 until the triggering device triggers the flue gas ignition device 5 to ignite the flue gas, and the burned flue gas is discharged to the atmosphere.
Example 8
The embodiment of the present invention provides an ignition method for handling thermal runaway of a battery, which specifically includes the following steps based on embodiment 7:
when a large amount of combustible gas is gathered in the lithium battery or the PACK box 1 and the gas pressure reaches the limit, the lithium battery or the PACK box 1 can discharge flue gas, push the pressure plug out of the flue gas outlet end under the action of the instantaneous pressure of the discharged flue gas, enable the pressure plug to approach the press switch 501 on the flue gas ignition device 5 until the pressure plug collides with the press switch 501, and open the press switch 501, so that the flue gas ignition device 5 ignites the flue gas; the gas burnt out after the flue gas is ignited is discharged from the top of the combustion box 3.
Or specifically comprises the following steps:
1) when a large amount of combustible gas is gathered in the lithium battery or the PACK box 1, and the gas pressure reaches the limit, the pressure release valve 2 or the explosion release film at the smoke outlet end is opened, the smoke is discharged along the smoke outlet end, the trigger block 6 is pushed to approach the smoke ignition device 5 by using the instantaneous pressure of the smoke discharged from the smoke outlet end until the top block 604 on the trigger block 6 collides with the press switch 501 on the smoke ignition device 5, and the press switch 501 is triggered to act, so that the smoke ignition device 5 ignites the smoke, and the burnt gas after the smoke is ignited is discharged from the top of the combustion box 3;
2) when the instantaneous pressure of the smoke is released and the pressure of the smoke exhausted from the smoke outlet end is reduced, the trigger block 6 is restored to the initial state under the action of the elastic reset piece.
The method can well prevent the combustible gas from gathering in the lithium battery or PACK box 1, so that the risk of explosion and ignition in the lithium battery or PACK box 1 can be avoided; meanwhile, combustible gas in the flue gas in the combustion box 3 is burnt out and then discharged into the atmosphere, so that pollution to the atmosphere is prevented.
The invention has been described in further detail with reference to specific preferred embodiments thereof, and it will be understood by those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (18)
1. The utility model provides a processing apparatus of battery thermal runaway flue gas which characterized in that, the processing apparatus of battery thermal runaway flue gas sets up the flue gas outlet end at lithium cell or PACK case.
2. The device for treating the battery thermal runaway flue gas as claimed in claim 1, wherein the device for treating the battery thermal runaway flue gas comprises a flue gas ignition device, and the flue gas ignition device is used for igniting flue gas exhausted by the thermal runaway of a lithium battery or a PACK box.
3. The device for treating battery thermal runaway flue gas of claim 2, wherein the flue gas ignition device is a pulse igniter.
4. The device for processing the battery thermal runaway flue gas as claimed in claim 3, wherein the device for processing the battery thermal runaway flue gas further comprises a triggering device, and the triggering device triggers the flue gas ignition device to ignite through the pressure of the flue gas discharged from the flue gas outlet end of the lithium battery or the PACK box.
5. The device for treating the battery thermal runaway flue gas as recited in claim 4, wherein the flue gas ignition device and the trigger device are both arranged in a combustion chamber outside the flue gas outlet end of the lithium battery or the PACK box, the trigger device is arranged opposite to the flue gas outlet end, and the flue gas ignition device is arranged above the trigger device.
6. The device for treating the battery thermal runaway flue gas as claimed in claim 5, wherein the combustion chamber is an inner cavity of a combustion box, and the combustion box is fixedly connected with a lithium battery or a PACK box.
7. The device for treating the battery thermal runaway flue gas as claimed in claim 6, wherein the triggering device comprises a pressure plug, and the pressure plug is arranged at the flue gas outlet end of the lithium battery or the PACK box.
8. The device for treating the battery thermal runaway flue gas as claimed in claim 6, wherein the triggering device comprises a longitudinal sliding rod and a triggering block, the longitudinal sliding rod and the triggering block are both arranged in an inner cavity of the combustion box, and the longitudinal sliding rod is fixedly connected with a lithium battery or a PACK box; the trigger block is sleeved on the outer side of the longitudinal sliding rod and is connected with the longitudinal sliding rod in a sliding manner; the trigger block is arranged opposite to the smoke outlet end of the lithium battery or the PACK box, and the smoke ignition device is arranged above the trigger block.
9. The device for treating the battery thermal runaway flue gas as claimed in claim 8, wherein the lower end face of the trigger block is an inward concave arc-shaped face, and the arc-shaped face is arranged opposite to the flue gas outlet end of the lithium battery or the PACK box.
10. The device for treating the battery thermal runaway flue gas as claimed in claim 9, wherein the trigger block is made of fire-proof material, an arc-shaped groove is arranged at the bottom of the trigger block, and the arc-shaped groove is arranged opposite to the flue gas outlet end of the lithium battery or the PACK box.
11. The device for treating the battery thermal runaway flue gas as claimed in claim 10, wherein the triggering device further comprises a limiting block and an elastic resetting member, the limiting block is fixedly connected to the top of the longitudinal sliding rod, the limiting block is connected with the triggering block through the elastic resetting member, and the limiting block is fixedly connected with the flue gas ignition device.
12. The device of claim 11, wherein the stop block is fixedly connected to the flue gas ignition device via a mounting bracket.
13. The device for treating the battery thermal runaway flue gas as claimed in claim 8, wherein a push switch is arranged at the bottom of the flue gas ignition device, and the push switch is arranged opposite to the pressure plug or the trigger block.
14. The device for treating the battery thermal runaway flue gas as claimed in claim 13, wherein a top block is arranged at the top of the trigger block, and the top block is arranged opposite to the push switch.
15. The device for treating the battery thermal runaway flue gas as claimed in claim 14, wherein the device for treating the battery thermal runaway flue gas further comprises a flame-retardant heat-insulating plate, the combustion box and the longitudinal sliding rod are both fixedly connected with a lithium battery or a PACK box through the flame-retardant heat-insulating plate, a communication hole is formed in the flame-retardant heat-insulating plate, the combustion box is communicated with a flue gas outlet end through the communication hole in the flame-retardant heat-insulating plate, a pressure relief assembly is arranged at the flue gas outlet end, and the pressure relief assembly penetrates through the flame-retardant heat-insulating plate and extends into a combustion cavity of the combustion box; the top of the combustion box is opened.
16. A method for treating battery thermal runaway flue gas is characterized by comprising the following steps: the flue gas generated by the thermal runaway of the battery is ignited before being discharged into the atmosphere.
17. The method for treating battery thermal runaway flue gas as claimed in claim 16, wherein the steps are specifically as follows: the trigger device is pushed to approach the smoke ignition device under the action of the pressure of the smoke discharged from the lithium battery or the PACK box until the trigger device triggers the smoke ignition device to ignite the smoke.
18. The method for treating battery thermal runaway flue gas of claim 17,
the steps are specifically as follows: pushing the pressure plug out of the smoke outlet end under the action of the pressure of smoke discharged from the lithium battery or the PACK box, and enabling the pressure plug to approach a press switch on the smoke ignition device until the press switch is opened by the pressure plug, so that the smoke ignition device ignites the smoke;
or the specific steps are as follows: the trigger block is pushed to approach the smoke ignition device under the action of the pressure of smoke discharged from a lithium battery or a PACK box until the top block on the trigger block triggers a press switch on the smoke ignition device to be opened, so that the smoke ignition device ignites the smoke; when the pressure of the smoke exhausted from the smoke outlet end is reduced, the triggering block is restored to the initial state under the action of the elastic restoring piece.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154438.1A CN113921984A (en) | 2021-09-29 | 2021-09-29 | Device and method for treating battery thermal runaway flue gas |
| EP22874953.7A EP4411959A1 (en) | 2021-09-29 | 2022-09-28 | Treatment apparatus for thermal runaway flue gas in battery, treatment method, battery group, and battery pack |
| PCT/CN2022/121982 WO2023051568A1 (en) | 2021-09-29 | 2022-09-28 | Treatment apparatus for thermal runaway flue gas in battery, treatment method, battery group, and battery pack |
| AU2022355963A AU2022355963A1 (en) | 2021-09-29 | 2022-09-28 | Thermal Runaway Flue Gas Treatment Apparatus for Battery, Treatment Method, Battery Group, and Battery Pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154438.1A CN113921984A (en) | 2021-09-29 | 2021-09-29 | Device and method for treating battery thermal runaway flue gas |
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| CN113921984A true CN113921984A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111154438.1A Pending CN113921984A (en) | 2021-09-29 | 2021-09-29 | Device and method for treating battery thermal runaway flue gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023051568A1 (en) * | 2021-09-29 | 2023-04-06 | 陕西奥林波斯电力能源有限责任公司 | Treatment apparatus for thermal runaway flue gas in battery, treatment method, battery group, and battery pack |
| WO2024045974A1 (en) * | 2022-09-01 | 2024-03-07 | 双澳储能科技（西安）有限公司 | Thermal runaway flue gas treatment system of battery pack and battery pack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879001A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Lithium ion battery |
| CN212657756U (en) * | 2020-02-27 | 2021-03-05 | 黄蕾 | High-energy diffusion tower ignition device intermittently ignited according to air pressure |
| CN216563420U (en) * | 2021-09-29 | 2022-05-17 | 陕西奥林波斯电力能源有限责任公司 | Processing apparatus of battery thermal runaway flue gas |
| CN217109583U (en) * | 2021-12-29 | 2022-08-02 | 陕西奥林波斯电力能源有限责任公司 | Smoke ignition device after explosion venting of battery and energy storage system |
| CN114843631A (en) * | 2022-04-26 | 2022-08-02 | 陕西奥林波斯电力能源有限责任公司 | Battery thermal runaway flue gas processing device, battery shell, battery pack and battery box |
-
2021
- 2021-09-29 CN CN202111154438.1A patent/CN113921984A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879001A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Lithium ion battery |
| CN212657756U (en) * | 2020-02-27 | 2021-03-05 | 黄蕾 | High-energy diffusion tower ignition device intermittently ignited according to air pressure |
| CN216563420U (en) * | 2021-09-29 | 2022-05-17 | 陕西奥林波斯电力能源有限责任公司 | Processing apparatus of battery thermal runaway flue gas |
| CN217109583U (en) * | 2021-12-29 | 2022-08-02 | 陕西奥林波斯电力能源有限责任公司 | Smoke ignition device after explosion venting of battery and energy storage system |
| CN114843631A (en) * | 2022-04-26 | 2022-08-02 | 陕西奥林波斯电力能源有限责任公司 | Battery thermal runaway flue gas processing device, battery shell, battery pack and battery box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023051568A1 (en) * | 2021-09-29 | 2023-04-06 | 陕西奥林波斯电力能源有限责任公司 | Treatment apparatus for thermal runaway flue gas in battery, treatment method, battery group, and battery pack |
| WO2024045974A1 (en) * | 2022-09-01 | 2024-03-07 | 双澳储能科技（西安）有限公司 | Thermal runaway flue gas treatment system of battery pack and battery pack |
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