Device for preventing and controlling fire of battery box by water mist

Abstract

The invention relates to a device for preventing and controlling fire of a battery box by water mist. The device comprises a sensor (2), a fire extinguisher storage tank (3), a quick start valve (4),an intelligent controller (5), a fire extinguishing agent delivering pipeline (8), a three-way connecting piece (9) and fire extinguishing agent water mist spray heads (10). The sensor (2) is fixed inthe battery box (1), the quick start valve (4) is arranged at the outlet of the fire extinguisher storage tank (3), and is connected with the intelligent controller (5) through a control cable (7), one end of the fire extinguishing agent delivering pipeline (8) is connected with the quick start valve (4), the other end of the fire extinguishing agent delivering pipeline (8) is connected with a first connector of the three-way connecting piece (9), a second connector and a third connector of the three-way connecting piece (9) are separately provided with the fire extinguishing agent water mistspray heads (10), and the fire extinguishing agent water mist spray heads (10) are fixed on the inner wall of the battery box (1). The device has the advantages of reliable function and self-checkingalarm.

Description

technical field [0001] The invention relates to the field of emergency rescue and fire fighting, in particular to a fire prevention and control device for a fine water mist battery box. Background technique [0002] With the strengthening of human awareness of environmental protection, in order to reduce air pollution, more and more vehicles use batteries as power. The annual sales of electric vehicles increase at a rate of 30%. The demand for battery box fire extinguishing by bus companies and automobile manufacturers around the world Every day. However, the internal temperature of the vehicle battery rises due to overcurrent heating caused by loose internal connections, overcharging or overdischarging due to out of control of the battery management system, short circuit of the internal or external lines of the battery due to external factors, etc., resulting in chemical or electrochemical The reaction releases flammable gas until the temperature rises to the critical poin...

AI Technical Summary

Problems solved by technology

However, the internal temperature of the vehicle battery rises due to overcurrent heating caused by loose internal connections, overcharging or overdischarging due to out of control of the battery management system, short circuit of the internal or external lines of the battery due to external factors, etc., resulting in chemical or electrochemical Reaction, releasing flammable gas, until the temperature rises to the critical point of combustion, the battery pack will spontaneously ignite or explode

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