A lithium ion battery fire test cabinet with automatic alarm and fire extinguishing system

Abstract

The invention discloses a lithium ion battery fire test cabinet with a self-assembled automatic alarm and fire extinguishment system. The lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system mainly comprises a fire cabinet main body, an automatic alarm system, a battery fixing bracket, a heat source simulation system, a measuring and monitoring system, a fire extinguishing system and a smoke discharging system. By virtue of multi-modulation, the sensitivity and response characteristics of different types of fire detectors (smoke sensing detectors, temperature sensing detectors or integrated smoke and temperature sensing detectors and the like) after the lithium ion battery is fired can be simulated; the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system is suitable for researching the factors such as the fire extinguishment effects (comprising actual fire extinguishing time and the use amount of fire extinguishing agents and the like) of various gas fire extinguishing agents in lithium ion battery fire, the influence of different fire extinguishing agents on the performance of the lithium ion battery after extinguishing the fire and the like. According to the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system, a vertical fire extinguishing agent releasing pipeline is self-designed according to a fire cabinet body, so that the fire extinguishing agent can be fully released into a battery cabinet within short time after the battery is fired, thus the fire extinguishing time is greatly shortened, the use amount of the fire extinguishing agent is reduced, the fire extinguishing cost is reduced, and the damage to the lithium ion battery is reduced.

Description

technical field [0001] The invention belongs to the field of fire safety engineering for thermal runaway of lithium ion batteries, and in particular relates to a lithium ion battery fire cabinet with an automatic alarm and fire extinguishing system. Background technique [0002] Compared with the previous lead-acid batteries, lithium-ion batteries as new energy batteries are not only more environmentally friendly but also have superior performance, so they are used more and more widely, and their applications involve new energy vehicles, electric vehicles, mobile phones and many other fields. The role of lithium-ion batteries in energy storage and communication base stations is becoming more and more obvious. However, during the storage process of lithium-ion batteries, thermal runaway may occur due to the accumulation of heat generated by its own chemical reaction or the influence of external heat sources. This is undoubtedly the biggest problem in the storage process of li...

AI Technical Summary

Problems solved by technology

The existing experimental platforms can only study a single small battery or a single factor, and it is difficult to study many factors such as the sensitivity of the automatic alarm system, the fire extinguishing effect of different fire extinguishing agents, and the temperature change in the cabinet at the same time.

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