CN217109583U - Smoke ignition device after explosion venting of battery and energy storage system - Google Patents
Smoke ignition device after explosion venting of battery and energy storage system Download PDFInfo
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- CN217109583U CN217109583U CN202123379020.9U CN202123379020U CN217109583U CN 217109583 U CN217109583 U CN 217109583U CN 202123379020 U CN202123379020 U CN 202123379020U CN 217109583 U CN217109583 U CN 217109583U
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Abstract
The utility model provides a battery and energy storage system let out flue gas ignition after exploding belongs to energy storage battery technical field, including burning chamber, ignition and trigger device, in the burning chamber was arranged in to ignition, trigger device was connected with ignition, and the burning chamber is used for storing combustible mixture and the combustion-supporting gas that produces when the battery takes place the thermal runaway, and trigger device is used for triggering ignition according to combustible mixture's pressure and/or temperature and lights combustible mixture. The combustible mixed gas in the combustion cavity is combusted through the ignition device, so that the concentration of combustible components in the combustible mixed gas is reduced or zero, secondary combustion cannot be caused by the combusted gas, and the purpose of fire resistance is fundamentally achieved; the safety of the battery operation is ensured.
Description
Technical Field
The utility model belongs to the technical field of the energy storage battery, a gas treatment technique when large capacity battery takes place the thermal runaway is related to, specifically a flue gas ignition after explosion is let out to battery and energy storage system.
Background
The lithium cell overheated, overcharge and overdischarge can lead to the inside thermal-arrest of battery, and a large amount of heat are piled up and are led to the inside temperature of battery and rise, can appear thermal runaway when the temperature rises to the limit that the battery can bear, can produce a large amount of combustible gas mixtures when the battery thermal runaway, for example: h 2 、CO、CH 4 When the internal pressure of the battery reaches a certain limit, the battery can explode and release the combustible mixed gas into the battery compartment, and the combustible mixed gas is contacted with air or oxygen to easily cause fire.
In the prior art, the main methods for preventing the combustible mixture from initiating combustion are as follows: 1. and (4) carrying out centralized collection on the combustible mixed gas. 2. The combustible mixture is isolated from the air/oxygen by an inert gas. However, these two methods cannot fundamentally solve the possibility of the secondary combustion of the combustible mixture, and the combustible mixture still has the risk of combustion during the post-treatment of the combustible mixture.
For example, patent publication No. CN109088109A discloses a safety battery comprising a battery module and an airbag, wherein a collecting airbag is provided outside a pressure relief port, and gas generated when the battery is thermally runaway is collected and then diluted with more inert gas to render the mixed gas non-combustible. On one hand, the high-temperature gas sprayed out of the pressure relief port of the battery has higher requirements on the temperature resistance of the collecting air bag, on the other hand, once the large-capacity battery is thermally out of control, the amount of the gas released by the large-capacity battery is very large, and after the large-capacity battery is diluted by inert gas with the volume being several times that of the large-capacity battery, the volume of the air bag is very large; post-processing is still cumbersome.
SUMMERY OF THE UTILITY MODEL
To the combustible gas mixture that produces when taking place the thermal runaway among the above-mentioned prior art can not fundamentally solve its technical problem who produces the postcombustion, the utility model provides a flue gas ignition after battery and energy storage system let out and explode.
The utility model mainly ignites and burns the combustible mixed gas generated by the thermal runaway of the battery, reduces the combustible components in the combustible mixed gas, leads the burnt gas not to be ignited again, and fundamentally achieves the purpose of fire resistance; the specific technical scheme is as follows:
the utility model provides a flue gas ignition after battery and energy storage system let out explode which characterized in that, includes combustion chamber, ignition and trigger device, ignition arranges the combustion chamber in, trigger device is connected with ignition, the combustion chamber is used for storing the combustible gas mixture that produces when the battery takes place thermal runaway, trigger device is used for igniting combustible gas mixture according to combustible gas mixture's pressure and/or temperature trigger ignition.
Further, the triggering device is a pressure switch and/or a temperature control switch or an electric connector pressure gauge.
Further limiting, the flue gas ignition device after explosion venting of the battery and the energy storage system further comprises a combustible mixed gas discharge pipe, and the combustion chamber is communicated with an electrolyte chamber of the battery through the combustible mixed gas discharge pipe; and an explosion venting structure is arranged in the pipe cavity of the combustible mixed gas discharge pipe.
Further, when the trigger device is a pressure switch and/or a temperature control switch, the pressure switch and/or the temperature control switch are/is arranged between the explosion venting structure and the combustion chamber; when the trigger device is an electric connector pressure gauge, the electric connector pressure gauge is arranged between the electrolyte cavity and the combustion cavity of the battery.
Further, when the trigger device is a pressure switch and a temperature control switch, the pressure switch and the temperature control switch are connected in parallel or in series.
Further, the triggering pressure of the pressure gauge of the electric connector is smaller than the explosion venting pressure of the explosion venting structure.
Further defined, the ignition device comprises an igniter and a power supply, the igniter is arranged inside the combustion chamber, and the power supply is arranged inside or outside the combustion chamber; the power supply is electrically connected with the igniter and the triggering device, and the triggering device is electrically connected with the igniter.
Further defined, the igniter and the power supply are tolerant to temperatures greater than 200 ℃.
Further defined, the ignition device is a pulse type igniter.
Further limited, the battery and the energy storage system are provided with a back fire prevention device arranged between the combustible mixed gas discharge pipe and the combustion cavity.
Further define, the flue gas ignition after battery and energy storage system let out explode still includes the wind cap that sets up at the combustion chamber top.
Further limiting, an air inlet is arranged on the wall of the combustion cavity and used for supplementing combustion-supporting air into the combustion cavity.
Further, the combustion-supporting gas is air.
Further limiting, the cavity wall of the combustion cavity is provided with an air outlet hole, and the air outlet hole is used for discharging residual gas after combustion.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model relates to a flue gas ignition after battery and energy storage system let out explode, it includes the burning chamber, ignition and trigger device, the burning chamber is used for storing combustible mixture and the combustion-supporting gas that produces when the battery takes place thermal runaway, trigger device is used for triggering ignition according to combustible mixture's pressure and/or temperature and ignites combustible mixture, combustible mixture in the burning chamber burns through ignition, reduce the concentration of combustible component in the combustible mixture or make combustible component's in the combustible mixture concentration be zero, ensure that the gas after the burning can not cause the postcombustion, fundamentally reaches the purpose of back-fire relief; the combustible gas mixture is prevented from being gathered in the battery, the battery is prevented from exploding, and the working safety of the battery is ensured.
2. The utility model discloses battery and energy storage system let out flue gas ignition after exploding still include combustible mixture gas exit tube, are provided with in combustible mixture gas exit tube and let out and explode the structure, when the inside thermal runaway production high temperature of taking place of battery and high pressure, will let out through high temperature and/or high pressure and explode the structure and open, lead the combustible gas that produces the thermal runaway of battery to the burning intracavity through combustible mixture gas exit tube and burn.
3. When the trigger device is a pressure switch and/or a temperature control switch, the pressure switch and/or the temperature control switch are/is arranged between the explosion venting structure and the combustion cavity, so that the pressure switch and/or the temperature control switch can be conveniently triggered to be switched on through the high pressure or high temperature of the combustible mixed gas in the combustible mixed gas discharge pipe, and then the igniter is triggered to ignite; when trigger device is the electricity joint manometer, the setting of electricity joint manometer is between the electrolyte chamber and the burning chamber of battery, and the convenience is direct to switch on the electricity joint manometer through the inside high pressure that produces of battery, triggers the ignition of igniter then.
4. When the trigger device is a pressure switch and a temperature control switch, the pressure switch and the temperature control switch are connected in parallel or in series, and when the pressure switch and the temperature control switch are connected in parallel, the temperature control switch can be switched on at high temperature or the pressure switch can be switched on at high pressure; when the pressure switch is connected with the temperature control switch in series, the temperature control switch needs to be conducted through high temperature and the pressure switch needs to be conducted through high pressure, and mistaken touch can be effectively prevented when the pressure switch is connected in series.
5. The touch pressure of the electric connector pressure gauge is smaller than the explosion venting pressure of the explosion venting structure, so that the electric connector pressure gauge is conducted before the explosion venting structure is opened, and the ignition device is ensured to enter an ignition state in advance.
6. The temperature tolerance of the igniter and the power supply is more than 200 ℃, so that the igniter and the power supply can bear the high temperature of the combustible mixture.
7. The utility model discloses flue gas ignition after battery and energy storage system let out explode still can ensure through anti-backfire device that burning chamber flame got into inside the battery when burning combustible mixture including setting up the anti-backfire device between combustible mixture discharge tube and burning chamber.
8. The utility model discloses battery and energy storage system let out flue gas ignition after exploding still including setting up the wind cap at burning chamber top, the wind cap can prevent to burn the intracavity air inlet, ensures the combustible mixture abundant burning of burning intracavity.
9. An air inlet is arranged on the wall of the combustion cavity, and combustion-supporting air can be conveniently supplemented into the combustion cavity through the air inlet.
10. The cavity wall of the combustion cavity is provided with an air outlet, and combusted gas can be conveniently discharged through the air outlet.
Drawings
Fig. 1 is a schematic structural view of the flue gas ignition device after explosion venting of the battery with the pressure switch and the energy storage system according to the present invention;
fig. 2 is a schematic structural view of the battery with the temperature control switch and the flue gas ignition device after the energy storage system is vented and exploded according to the present invention;
fig. 3 is a schematic structural view of the battery with the pressure switch and the temperature control switch and the flue gas ignition device after the energy storage system is vented and exploded according to the present invention;
fig. 4 is a schematic structural view of the battery of the pressure gauge with the electric joint and the flue gas ignition device after the energy storage system is vented and exploded;
the device comprises a combustible mixture gas discharge pipe 1, a combustion chamber 2, a pulse type igniter 3, a power supply 4, an air inlet 5, a windshield 6, an air outlet 7, an anti-backfire device 8, a pressure switch 9, an explosion venting structure 10, an explosion venting film 11, a temperature control switch 12 and an electric joint pressure gauge 13.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
The utility model relates to a battery and energy storage system let out flue gas ignition after exploding, including burning chamber 2, ignition and trigger device, ignition arranges burning chamber 2 in, and trigger device is connected with ignition, and burning chamber 2 is used for the combustible gas mixture that produces when storage battery takes place the thermal runaway, and trigger device is used for triggering ignition according to combustible gas mixture's pressure and/or temperature and lights combustible gas mixture. The triggering device is a pressure switch 9 and/or a temperature control switch 12 or an electric joint pressure gauge 13. The flue gas ignition device after the explosion venting of the battery and the energy storage system also comprises a combustible mixed gas discharge pipe 1, and the combustion cavity 2 is communicated with an electrolyte cavity of the battery through the combustible mixed gas discharge pipe 1; and an explosion venting structure 10 is arranged in the pipe cavity of the combustible mixed gas discharge pipe 1. When the trigger device is the pressure switch 9 and/or the temperature control switch 12, the pressure switch 9 and/or the temperature control switch 12 are/is arranged between the explosion venting structure 10 and the combustion chamber 2; when the triggering device is an electrical connector pressure gauge 13, the electrical connector pressure gauge 13 is arranged between the electrolyte chamber and the combustion chamber 2 of the battery. When the triggering devices are a pressure switch 9 and a temperature control switch 12, the pressure switch 9 and the temperature control switch 12 are connected in parallel or in series. The triggering pressure of the electric connector pressure gauge 13 is smaller than the explosion venting pressure of the explosion venting structure 10. The ignition device comprises an igniter and a power supply 4, the igniter is arranged in the combustion chamber 2, and the power supply 4 is arranged in or outside the combustion chamber 2; the power source 4 is electrically connected to the igniter and the triggering device, which is electrically connected to the igniter. The igniter and the power source 4 are tolerant to temperatures greater than 200 c. The ignition device is a pulse type igniter 3. The smoke ignition device after the explosion venting of the battery and the energy storage system further comprises an anti-backfire device 8 arranged between the combustible mixed gas exhaust pipe 1 and the combustion chamber 2. The smoke ignition device after the explosion venting of the battery and the energy storage system further comprises a windproof cover 6 arranged at the top of the combustion cavity 2. An air inlet 5 is arranged on the wall of the combustion cavity 2, and the air inlet 5 is used for supplementing combustion-supporting gas into the combustion cavity 2. The combustion-supporting gas is air. And the cavity wall of the combustion cavity 2 is provided with an air outlet 7, and the air outlet 7 is used for discharging residual gas after combustion.
Example 1
The embodiment provides a flue gas ignition after battery and energy storage system let out explode, it includes combustion chamber 2, ignition and trigger device, ignition arranges in combustion chamber 2, trigger device is connected with the ignition electricity, wherein, combustion chamber 2 communicates with the inside electrolyte chamber of battery, combustion chamber 2 is used for storing the combustible gas mixture that the battery produced when the thermal runaway takes place, trigger device is used for triggering ignition according to combustible gas mixture's pressure and/or temperature and ignites, ignite combustible gas mixture, reduce the combustible component in the combustible gas mixture, preferably, burn out combustible component in the combustible gas mixture, prevent that the gas that finishes burning from taking place the possibility that the secondary ignited, reach thorough fire-retardant purpose.
Preferably, the combustion chamber 2 of the present embodiment is provided on a side portion of the battery near the explosion vent.
Preferably, the combustion chamber 2 is continuously replenished with the combustion-supporting gas during combustion of the combustible mixture in the combustion chamber 2. Meanwhile, the residual gas burnt in the combustion chamber 2 needs to be discharged in time.
Example 2
Referring to fig. 1, in the flue gas ignition device after explosion venting of the battery and the energy storage system according to the embodiment, on the basis of embodiment 1, the trigger device is a pressure switch 9; the flue gas ignition device after explosion venting of the battery and the energy storage system in the embodiment further comprises a combustible mixed gas discharge pipe 1, wherein one end part of the combustible mixed gas discharge pipe 1 is communicated with an electrolyte cavity in the battery, the other end part of the combustible mixed gas discharge pipe 1 is communicated with a combustion chamber 2, namely, the combustion chamber 2 is communicated with the electrolyte cavity in the battery through the combustible mixed gas discharge pipe 1, and an explosion venting structure 10 is arranged in the combustible mixed gas discharge pipe 1; pressure switch 9 sets up and is letting out between exploding structure 10 and combustion chamber 2, and ignition includes some firearm and power 4, and some firearm is arranged combustion chamber 2 inside in, and power 4 sets up in combustion chamber 2 inside or outside, and power 4, pressure switch 9 and ignition head are from going to back series connection in proper order.
Preferably, the pressure switch 9 of the present embodiment is provided at the gas outlet of the combustible mixture discharge pipe 1.
The explosion venting structure 10 of the present embodiment is an explosion venting membrane 11 or an explosion venting valve, and preferably, the explosion venting structure 10 of the present embodiment is an explosion venting membrane 11.
Preferably, the igniter and the power source 4 of the present embodiment are resistant to temperatures greater than 200 ℃ and to the high temperature of the combustible mixture in the combustion chamber 2.
Preferably, the ignition device of the present embodiment is a pulse type igniter 3, and the ignition device of the present embodiment may be an igniter other than the pulse type igniter 3.
Preferably, the power source 4 of the present embodiment is a chargeable and dischargeable power source.
The flue gas ignition device after explosion venting of the battery and the energy storage system further comprises an anti-backfire device 8 arranged between the combustible mixed gas exhaust pipe 1 and the combustion chamber 2; the anti-backfire device 8 can effectively prevent the flame in the combustion chamber 2 from entering the battery, and ensure the working safety of the battery.
The battery and the energy storage system of this embodiment let out flue gas ignition after exploding still including setting up the wind cap 6 at 2 tops in combustion chamber, wind cap 6 can effectively prevent 2 interior air intakes of combustion chamber.
An air inlet 5 is arranged on the wall of the combustion cavity 2, and the air inlet 5 is used for supplementing combustion-supporting gas into the combustion cavity 2. Preferably, the combustion-supporting gas in this embodiment is air, and it should be noted that the combustion-supporting gas may also be oxygen or other gas capable of supporting combustion.
Preferably, the number of the intake ports 5 of the present embodiment is two, and the two intake ports are respectively disposed on opposite sides of the combustion chamber 2.
And the cavity wall of the combustion cavity 2 is provided with an air outlet 7, and the air outlet 7 is used for discharging residual gas after combustion.
Preferably, the air inlet 5 of the present embodiment is disposed near the bottom of the combustion chamber 2, and the air outlet 7 is disposed near the top of the combustion chamber 2.
Example 3
Referring to fig. 2, in the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment, on the basis of embodiment 1, the trigger device is a temperature control switch 12, the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment further includes a combustible mixed gas exhaust pipe 1, one end of the combustible mixed gas exhaust pipe 1 is communicated with an electrolyte cavity inside the battery, the other end is communicated with the combustion chamber 2, that is, the combustion chamber 2 is communicated with the electrolyte cavity inside the battery through the combustible mixed gas exhaust pipe 1, and an explosion venting structure 10 is arranged in the combustible mixed gas exhaust pipe 1; temperature detect switch 12 sets up and is letting out between exploding structure 10 and combustion chamber 2, and ignition includes some firearm and power 4, and some firearm are arranged combustion chamber 2 inside in, and power 4 sets up in combustion chamber 2's inside or outside, and power 4, temperature detect switch 12 and ignition head are from going to back series connection in proper order.
Preferably, the temperature-controlled switch 12 of the present embodiment is provided at the gas outlet of the combustible mixture discharge pipe 1.
The explosion venting structure 10 of the present embodiment is an explosion venting membrane 11 or an explosion venting valve, and preferably, the explosion venting structure 10 of the present embodiment is an explosion venting membrane 11.
Preferably, the igniter and the power source 4 of the present embodiment are resistant to temperatures greater than 200 ℃ and to the high temperature of the combustible mixture in the combustion chamber 2.
The ignition device of the present embodiment is preferably a pulse type igniter 3, and the ignition device of the present embodiment may be an igniter other than the pulse type igniter 3.
Preferably, the power source 4 of the present embodiment is a chargeable and dischargeable power source.
The flue gas ignition device after explosion venting of the battery and the energy storage system further comprises an anti-backfire device 8 arranged between the combustible mixed gas exhaust pipe 1 and the combustion chamber 2; the anti-backfire device 8 can effectively prevent the flame in the combustion chamber 2 from entering the battery, and ensure the working safety of the battery.
The battery and the energy storage system of this embodiment let out flue gas ignition after exploding still including setting up the wind cap 6 at 2 tops in combustion chamber, wind cap 6 can effectively prevent 2 interior air intakes of combustion chamber.
An air inlet 5 is arranged on the wall of the combustion cavity 2, and the air inlet 5 is used for supplementing combustion-supporting gas into the combustion cavity 2. Preferably, the combustion-supporting gas in this embodiment is air, and it should be noted that the combustion-supporting gas may also be oxygen or other gas capable of supporting combustion.
Preferably, the number of the intake ports 5 of the present embodiment is two, and the two intake ports are respectively disposed on opposite sides of the combustion chamber 2.
And the cavity wall of the combustion cavity 2 is provided with an air outlet 7, and the air outlet 7 is used for discharging residual gas after combustion.
Preferably, the air inlet 5 of the present embodiment is disposed near the bottom of the combustion chamber 2, and the air outlet 7 is disposed near the top of the combustion chamber 2.
Example 4
Referring to fig. 3, in the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment, on the basis of embodiment 1, the trigger devices are a pressure switch 9 and a temperature control switch 12, the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment further includes a combustible mixed gas exhaust pipe 1, one end of the combustible mixed gas exhaust pipe 1 is communicated with an electrolyte cavity inside the battery, the other end is communicated with a combustion chamber 2, that is, the combustion chamber 2 is communicated with the electrolyte cavity inside the battery through the combustible mixed gas exhaust pipe 1, and an explosion venting structure 10 is arranged in the combustible mixed gas exhaust pipe 1; the pressure switch 9 and the temperature control switch 12 are arranged between the explosion venting structure 10 and the combustion chamber 2, the ignition device comprises an igniter and a power supply 4, the igniter is arranged in the combustion chamber 2, the power supply 4 is arranged in or outside the combustion chamber 2, wherein the pressure switch 9 is arranged at the air outlet of the combustible mixed gas discharge pipe 1, and the temperature control switch 12 is arranged at the air inlet of the combustible mixed gas in the combustion chamber 2; battery 4, pressure switch 9, temperature detect switch 12 and ignition head are from going to back series connection in proper order, when establishing ties between pressure switch 9 and temperature detect switch 12, need switch on temperature detect switch 12 through the high temperature promptly and switch on pressure switch 9 through the high pressure, can effectively prevent the mistake and touch. It should be noted that, the pressure switch 9 and the temperature control switch 12 may also be connected in parallel, and when the pressure switch and the temperature control switch are connected in parallel, the temperature control switch may be turned on at a high temperature or at a high pressure.
The explosion venting structure 10 of the present embodiment is an explosion venting membrane 11 or an explosion venting valve, and preferably, the explosion venting structure 10 of the present embodiment is an explosion venting membrane 11.
Preferably, the igniter and the power source 4 of the present embodiment are resistant to temperatures greater than 200 ℃ and to the high temperature of the combustible mixture in the combustion chamber 2.
Preferably, the ignition device of the present embodiment is a pulse type igniter 3, and the ignition device of the present embodiment may be an igniter other than the pulse type igniter 3.
Preferably, the power source 4 of the present embodiment is a chargeable and dischargeable power source.
The flue gas ignition device after explosion venting of the battery and the energy storage system further comprises an anti-backfire device 8 arranged between the combustible mixed gas exhaust pipe 1 and the combustion chamber 2; the anti-backfire device 8 can effectively prevent the flame in the combustion chamber 2 from entering the battery, and ensure the working safety of the battery.
The battery and the energy storage system of this embodiment let out flue gas ignition after exploding still including setting up the wind cap 6 at 2 tops in combustion chamber, wind cap 6 can effectively prevent 2 interior air intakes of combustion chamber.
An air inlet 5 is arranged on the wall of the combustion cavity 2, and the air inlet 5 is used for supplementing combustion-supporting gas into the combustion cavity 2. Preferably, the combustion-supporting gas in this embodiment is air, and it should be noted that the combustion-supporting gas may also be oxygen or other gas capable of supporting combustion.
Preferably, the number of the intake ports 5 of the present embodiment is two, and the two intake ports are respectively disposed on opposite sides of the combustion chamber 2.
And the cavity wall of the combustion cavity 2 is provided with an air outlet 7, and the air outlet 7 is used for discharging residual gas after combustion.
Preferably, the air inlet 5 of the present embodiment is disposed near the bottom of the combustion chamber 2, and the air outlet 7 is disposed near the top of the combustion chamber 2.
Example 5
Referring to fig. 4, in the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment, on the basis of embodiment 1, the trigger device is an electrical connector pressure gauge 13, the flue gas ignition device after explosion venting of the battery and the energy storage system of the present embodiment further includes a combustible mixed gas exhaust pipe 1, one end of the combustible mixed gas exhaust pipe 1 is communicated with an electrolyte cavity inside the battery, the other end is communicated with a combustion chamber 2, that is, the combustion chamber 2 is communicated with the electrolyte cavity inside the battery through the combustible mixed gas exhaust pipe 1, and an explosion venting structure 10 is arranged in the combustible mixed gas exhaust pipe 1; the setting of electricity connects manometer 13 between the electrolyte chamber of battery and combustion chamber 2, the specific department connection three-way pipe that explodes is leaked at the battery for let out and explode the first interface connection of mouth and three-way pipe, the second interface of three-way pipe passes through combustible gas eduction tube 1 and 2 intercommunications in combustion chamber, the third interface and the electric joint manometer 13 of three-way pipe are connected, electric joint manometer 13 is connected with the ignition head, battery 4 is used for electric joint manometer 13 and the power supply of ignition head.
The explosion venting structure 10 of the present embodiment is an explosion venting membrane 11 or an explosion venting valve, and preferably, the explosion venting structure 10 of the present embodiment is an explosion venting membrane 11.
Preferably, the triggering pressure of the electric connector pressure gauge 13 of the present embodiment is smaller than the explosion venting pressure of the explosion venting structure 10.
Preferably, the igniter and the power source 4 of the present embodiment are resistant to temperatures greater than 200 ℃ and to the high temperature of the combustible mixture in the combustion chamber 2.
Preferably, the ignition device of the present embodiment is a pulse type igniter 3, and the ignition device of the present embodiment may be an igniter other than the pulse type igniter 3.
Preferably, the power source 4 of the present embodiment is a chargeable and dischargeable power source.
The flue gas ignition device after explosion venting of the battery and the energy storage system further comprises an anti-backfire device 8 arranged between the combustible mixed gas exhaust pipe 1 and the combustion chamber 2; the anti-backfire device 8 can effectively prevent the flame in the combustion chamber 2 from entering the battery, and ensure the working safety of the battery.
The battery and the energy storage system of this embodiment let out flue gas ignition after exploding still including setting up the wind cap 6 at 2 tops in combustion chamber, wind cap 6 can effectively prevent 2 interior air intakes of combustion chamber.
An air inlet 5 is arranged on the wall of the combustion cavity 2, and the air inlet 5 is used for supplementing combustion-supporting gas into the combustion cavity 2. Preferably, the combustion-supporting gas in this embodiment is air, and it should be noted that the combustion-supporting gas may also be oxygen or other gas capable of supporting combustion.
Preferably, the air inlet 5 of the present embodiment is disposed near the bottom of the combustion chamber 2, and the air outlet 7 is disposed near the top of the combustion chamber 2.
Preferably, the number of the intake ports 5 of the present embodiment is two, and the two intake ports are respectively disposed on opposite sides of the combustion chamber 2.
And the cavity wall of the combustion cavity 2 is provided with an air outlet 7, and the air outlet 7 is used for discharging residual gas after combustion.
The utility model relates to a battery and energy storage system let out flue gas ignition after exploding, its theory of operation is: when thermal runaway occurs in the battery, the pressure and the temperature in the battery sharply rise, the explosion venting structure 10 is opened by the high pressure in the battery, combustible mixed gas generated by the thermal runaway is discharged into the combustion cavity 2 through the combustible mixed gas discharge pipe 1, meanwhile, combustion-supporting gas is passed through the combustion-supporting gas in the combustion cavity 2, and meanwhile, the trigger device is switched on, so that the ignition device is in an ignition state, the combustible mixed gas is continuously gathered in the combustion cavity 2, when the ignition condition is reached, the combustible mixed gas is ignited and starts to burn, combustible components in the combustible mixed gas are burnt out or are burnt until the concentration of the combustible components is low enough to be incapable of being ignited again, and the burnt gas is discharged into the atmosphere through the gas outlet 7.
The foregoing is a further detailed description of the invention with reference to specific preferred embodiments and is not intended to limit the invention, to the extent that certain modifications or alterations may be made without departing from the spirit of the invention, any such modifications, equivalents, improvements, etc. as fall within the spirit and principles of the invention as defined by the appended claims.
Claims (14)
1. The utility model provides a flue gas ignition after battery and energy storage system let out explode which characterized in that, includes combustion chamber, ignition and trigger device, ignition arranges the combustion chamber in, trigger device is connected with ignition, the combustion chamber is used for storing the combustible gas mixture that produces when the battery takes place thermal runaway, trigger device is used for igniting combustible gas mixture according to combustible gas mixture's pressure and/or temperature trigger ignition.
2. The battery and energy storage system vented flue gas ignition device of claim 1 wherein the triggering device is a pressure switch and/or a temperature controlled switch or an electrical connector pressure gauge.
3. The device according to claim 2, wherein the device further comprises a combustible mixture gas discharge pipe, and the combustion chamber is communicated with the electrolyte chamber of the battery through the combustible mixture gas discharge pipe; and an explosion venting structure is arranged in the pipe cavity of the combustible mixed gas discharge pipe.
4. The battery and energy storage system post-venting smoke ignition device of claim 3, wherein when the triggering device is a pressure switch and/or a temperature controlled switch, the pressure switch and/or the temperature controlled switch is disposed between the venting structure and the combustion chamber; when the trigger device is an electric connector pressure gauge, the electric connector pressure gauge is arranged between the electrolyte cavity and the combustion cavity of the battery.
5. The battery and energy storage system post-venting smoke ignition device of claim 4, wherein when the triggering device is a pressure switch and a temperature switch, the pressure switch and the temperature switch are connected in parallel or in series.
6. The device as claimed in claim 5, wherein the pressure of the contact pressure gauge is lower than the explosion venting pressure of the explosion venting structure.
7. The battery and energy storage system vented flue gas ignition device according to claim 5, wherein the ignition device comprises an igniter and a power supply, the igniter is arranged in the combustion chamber, and the power supply is arranged in or outside the combustion chamber; the power supply is electrically connected with the igniter and the triggering device, and the triggering device is electrically connected with the igniter.
8. The battery and energy storage system vented flue gas ignition device of claim 7 wherein the igniter and power supply withstand temperatures greater than 200 ℃.
9. The battery and energy storage system vented flue gas ignition device of claim 8 wherein the ignition device is a pulse igniter.
10. The vented flue gas ignition device of claim 9, wherein the vented flue gas ignition device further comprises an anti-backfire device disposed between the flammable mixture gas-discharging pipe and the combustion chamber.
11. The battery and energy storage system vented flue gas ignition device of claim 10, wherein the battery and energy storage system vented flue gas ignition device further comprises a windshield disposed at the top of the combustion chamber.
12. The battery and energy storage system vented flue gas ignition device according to claim 11, wherein the wall of the combustion chamber is provided with an air inlet, and the air inlet is used for supplementing combustion-supporting gas into the combustion chamber.
13. The battery and energy storage system vented flue gas ignition device of claim 12 wherein the combustion supporting gas is air.
14. The battery and energy storage system post-venting smoke ignition device of claim 13, wherein the chamber wall of the combustion chamber is provided with an air outlet for exhausting residual gases after combustion.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379020.9U CN217109583U (en) | 2021-12-29 | 2021-12-29 | Smoke ignition device after explosion venting of battery and energy storage system |
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379020.9U CN217109583U (en) | 2021-12-29 | 2021-12-29 | Smoke ignition device after explosion venting of battery and energy storage system |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921984A (en) * | 2021-09-29 | 2022-01-11 | 陕西奥林波斯电力能源有限责任公司 | Device and method for treating battery thermal runaway flue gas |
| 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 |
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2021
- 2021-12-29 CN CN202123379020.9U patent/CN217109583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921984A (en) * | 2021-09-29 | 2022-01-11 | 陕西奥林波斯电力能源有限责任公司 | Device and method for treating battery thermal runaway flue gas |
| 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 |
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