CN215387151U

CN215387151U - Novel lithium electricity fire control device

Info

Publication number: CN215387151U
Application number: CN202121173023.4U
Authority: CN
Inventors: 钟承志; 郁轩明涛
Original assignee: Shenzhen Hongjiali Fire Technology Co ltd
Current assignee: Shenzhen Hongjiali Fire Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-01-04
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a novel lithium battery fire-fighting device which comprises a gas generator and a fire extinguishing agent container, wherein liquid, gas or powdery fire extinguishing agent with normal pressure is stored in the fire extinguishing agent container, and the gas generator is arranged in the fire extinguishing agent container; the fire extinguishing agent container is characterized in that a trigger is arranged in the gas generator, the trigger is triggered by an electric signal or a thermal signal, and the trigger is suitable for enabling the gas generator to generate a large amount of high-pressure gas when working and enables the fire extinguishing agent container to be extruded and burst, so that the fire extinguishing agent in the fire extinguishing agent container is rapidly discharged. The utility model has simple structure and high fire extinguishing speed, and is very suitable for fire fighting of lithium batteries.

Description

Novel lithium electricity fire control device

Technical Field

The utility model relates to the technical field of fire-fighting equipment, in particular to a novel lithium-ion fire-fighting device.

Background

With the rapid development of economy and science and technology, a large amount of energy is needed in all countries around the world, and the petrochemical energy which is commonly used at present belongs to limited non-renewable energy. In view of this, various countries advocate using new energy, and electric energy is the most convenient and practical new energy and clean energy so far. For this reason, various energy storage batteries are available on the market, and these individual batteries are arranged and combined in a certain manner to form a battery module with various functions. These batteries are widely used because of their ability to store and discharge electricity, particularly lithium batteries. However, since the lithium battery has a high energy density, the battery is easily short-circuited to generate flame and cause a large-area fire when the battery is subjected to overshoot, compression, or the like.

As shown in fig. 1, there is a fire fighting device for lithium battery fire extinguishing, which mainly comprises a driving device 1, a gas generator 2 is arranged in the driving device 1, and the gas generator 2 is connected with a starting device 3. The drive 1 is connected to a container 4 for storing a fire extinguishing agent, which container 4 is provided with one or more nozzles 5, wherein a first membrane 6 is arranged between the nozzle 5 and the container 4 and a second membrane 7 is arranged between the drive 1 and the container 4. When the starting device 3 receives a fire signal, the gas generator 2 is triggered to generate combustion reaction to generate a large amount of gas, a high-temperature high-pressure state is formed in the driving device 1, the second membrane 6 is broken through along with the continuous increase of the pressure, the gas enters the container 4 storing the fire extinguishing agent, the pressure in the container 4 is gradually increased along with the continuous progress of the combustion reaction, when the pressure of the container 4 reaches a certain value, the first membrane 6 is broken through, the fire extinguishing agent is sprayed out at a high speed through the nozzle 5 and is released to a fire extinguishing protection area, and fire extinguishing is realized. This product has the following disadvantages: 1. the product has a complex structure and has higher requirement on the pressure resistance of the product; 2. the fire extinguishing agent has long release time and slow fire extinguishing speed, and because high-pressure gas must be formed in the driving device firstly, the high-pressure environment is established in the container after the second membrane is broken, and the first membrane can be broken to release the fire extinguishing agent after a certain value is reached, so that a certain time is inevitably needed; 3. the product consistency is poor, because the product structure is complex, the automatic production and assembly are difficult to realize, most of the products are finished manually by workers, and because the difference of manual production skills is large, the product consistency is poor; 4. the cost is high, and the production efficiency is low and the production cost is indirectly improved because the product structure is complex and automatic production cannot be realized.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a novel lithium battery fire-fighting device to simplify the product structure and improve the fire extinguishing speed.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

The utility model provides a novel lithium battery fire-fighting device which comprises a gas generator and a fire extinguishing agent container, wherein liquid, gas or powdery fire extinguishing agent with normal pressure is stored in the fire extinguishing agent container, and the gas generator is arranged in the fire extinguishing agent container; the fire extinguishing agent container is characterized in that a trigger is arranged in the gas generator, the trigger is triggered by an electric signal or a thermal signal, and the trigger is suitable for enabling the gas generator to generate a large amount of high-pressure gas when working and enables the fire extinguishing agent container to be extruded and burst, so that the fire extinguishing agent in the fire extinguishing agent container is rapidly discharged.

Preferably, the trigger is an electric initiator, a driving agent which can rapidly generate a large amount of aerosol fire extinguishing agent after being heated is further arranged in the gas generator, and the driving agent is wrapped outside the trigger.

Preferably, a gas storage tank for storing high-pressure gas and a valve for opening the gas storage tank are arranged in the gas generator, and the trigger is suitable for opening the valve when being triggered, so that the high-pressure gas rushes into the fire extinguishing agent container and the fire extinguishing agent container is extruded and burst.

Preferably, the high pressure gas is an inert gas.

Preferably, the fire extinguishing agent container is an integrated sealing structure and is provided with an opening for filling the fire extinguishing agent, and a plug is arranged at the opening.

Preferably, the fire extinguishing agent is perfluorohexanone.

The utility model adopts the fire extinguishing agent container to store the fire extinguishing agent at normal pressure, and the high-pressure gas is generated by the gas generator inside, so that the high-pressure gas is flushed into the fire extinguishing agent container to extrude and explode the fire extinguishing agent container, and the fire extinguishing agents such as perfluorohexanone and the like in the fire extinguishing agent container are rapidly discharged, thereby achieving the purpose of rapidly extinguishing fire.

Drawings

FIG. 1 is a prior art fire fighting apparatus for lithium battery fire suppression;

fig. 2 is a schematic view of the overall structure of the novel lithium-ion fire-fighting device according to the first embodiment;

fig. 3 is a schematic view of the overall structure of the novel lithium-ion fire fighting device according to the second embodiment.

The implementation of the objects of the present invention and their functions and principles will be further explained in the detailed description with reference to the attached drawings.

Detailed Description

The following further description is made with reference to the drawings and specific embodiments.

The first embodiment is as follows:

as shown in fig. 2, the present embodiment provides a novel lithium-ion fire-fighting device 100, which includes a gas generator 110 and a fire-extinguishing agent container 120, wherein the fire-extinguishing agent container 120 stores a liquid, gas or powder fire-extinguishing agent 130 at normal pressure, and the gas generator 120 is disposed in the fire-extinguishing agent container 120. The gas generator 110 is internally provided with a trigger 111, the trigger 111 is triggered by an electric signal or a thermal signal, and the trigger 111 is suitable for enabling the gas generator 110 to generate a large amount of high-pressure gas when working, so as to rapidly extrude and burst the fire extinguishing agent container 120, thereby rapidly discharging the fire extinguishing agent 130 in the fire extinguishing agent container 120, and achieving the purpose of rapidly extinguishing a fire.

Specifically, the trigger 111 is an electrical initiator, and a driving agent 112 is disposed inside the gas generator 110 and wrapped outside the electrical initiator, wherein the driving agent 112 can rapidly generate a large amount of aerosol fire extinguishing agent after being heated. In the event of a fire, an external sensor or a manual press of a fire button generates a fire alarm signal, which is transmitted to the trigger 111 through the electric wire 150, causing the trigger 111 to trigger to start heating. The propellant 112 is heated to the ignition point and burns, producing a large amount of aerosol suppressant instantaneously. With the continuous combustion of the driving agent 112, the high-pressure gas continuously rushes into the fire extinguishing agent container 120, and finally the fire extinguishing agent container 120 is pressed and burst, so that the fire extinguishing agent 130 inside is rapidly discharged, and the rapid fire extinguishing is realized.

The trigger 111 of the present embodiment may also be a heat-sensitive wire, and the driving agent 112 is wrapped outside one end of the heat-sensitive wire, and the other end of the heat-sensitive wire extends to the outside of the gas generator 110 for sensing the ambient temperature. When a fire breaks out in the external environment, the ambient temperature reaches the ignition point of the heat-sensitive wire, the heat-sensitive wire spontaneously ignites and burns along the wire body into the gas generator 110 until the propellant 112 is ignited. The extinguishing action after the propellant 112 is ignited is the same as above and will not be described further herein.

The fire extinguishing agent container 120 of the present embodiment is a one-piece sealed structure and is provided with an opening for filling the fire extinguishing agent 130 and a stopper 160 at the opening to close the opening.

The fire extinguishing agent 130 is preferably perfluorohexanone, which is liquid at room temperature, and when a fire breaks out, the high-temperature and high-pressure gas generated by the driving agent 112 can vaporize the perfluorohexanone at the instant of explosion of the fire extinguishing agent container 120, thereby forming a large amount of aerosol fire extinguishing substances, effectively extinguishing the fire, and achieving the effect of quickly extinguishing the fire. Of course, other fire extinguishing agents having a better fire extinguishing effect may be used, including known liquid, gaseous or powdered fire extinguishing agents.

Example two:

referring to fig. 3, the present embodiment provides another fire fighting device 200 for lithium battery fire fighting, the fire fighting device 200 has substantially the same structure as the novel lithium battery fire fighting device described in the first embodiment, except that a gas tank 211 for storing high-pressure gas is disposed in the gas generator 210, the trigger 212 is a valve for opening the gas tank, the gas generator 210 is filled with high-pressure gas, and the internal trigger 211 is an electric control device and is connected to the outside through a wire 250. When a fire breaks out, an electric signal generated from the outside is transmitted to the trigger 212 through the wire 250, so that the trigger 212 is triggered, the valve is opened, the high-pressure gas stored in the gas generator 210 is rapidly flushed into the fire extinguishing agent container 220 through the valve, and finally the fire extinguishing agent container 220 is extruded and burst, so that the fire extinguishing agent 230 in the fire extinguishing agent container 220 is rapidly discharged, and the effect of rapidly extinguishing the fire is achieved.

In this embodiment, the high-pressure gas is CO₂Or N₂And the like.

In conclusion, the fire extinguishing agent container is adopted to store the fire extinguishing agent at normal pressure, the trigger in the gas generator is used for generating high-pressure gas, the channel between the gas generator and the fire extinguishing agent container is opened, the high-pressure gas is flushed into the fire extinguishing agent container so as to extrude and explode the fire extinguishing agent container, and the fire extinguishing agents such as perfluorohexanone and the like in the fire extinguishing agent container are discharged quickly, so that the aim of quickly extinguishing fire is fulfilled.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a novel lithium electricity fire control device, includes gas generator and fire extinguishing agent container, its characterized in that: the fire extinguishing agent container is internally stored with liquid, gas or powdery fire extinguishing agent at normal pressure, and the gas generator is arranged in the fire extinguishing agent container; the fire extinguishing agent container is characterized in that a trigger is arranged in the gas generator, the trigger is triggered by an electric signal or a thermal signal, and the trigger is suitable for enabling the gas generator to generate a large amount of high-pressure gas when working and enables the fire extinguishing agent container to be extruded and burst, so that the fire extinguishing agent in the fire extinguishing agent container is rapidly discharged.

2. The novel lithium-ion electric fire-fighting device of claim 1, characterized in that: the trigger is an electric initiator, a driving agent which can rapidly generate a large amount of aerosol fire extinguishing agent after being heated is also arranged in the gas generator, and the driving agent is wrapped outside the trigger.

3. The novel lithium-ion electric fire-fighting device of claim 1, characterized in that: the gas generator is internally provided with a gas storage tank for storing high-pressure gas and a valve for opening the gas storage tank, and the trigger is suitable for opening the valve when being triggered, so that the high-pressure gas rushes into the fire extinguishing agent container to extrude and burst the fire extinguishing agent container.

4. A novel lithium-ion electric fire-fighting device according to claim 3, characterized in that: the high-pressure gas is inert gas.

5. The novel lithium-ion electric fire-fighting device as defined in any of claims 1 to 4, characterized in that: the fire extinguishing agent container is of an integrated sealing structure and is provided with an opening used for filling the fire extinguishing agent, and a plug is arranged at the opening.

6. The novel lithium-ion electric fire-fighting device of claim 5, characterized in that: the fire extinguishing agent is perfluorohexanone.