Bus fire extinguishing device based on atomization spraying

Abstract

The invention discloses a bus fire extinguishing device based on atomization spraying. The interior of a liquid storage tank is partitioned into a liquid storage chamber and a gas inflation chamber through a deformable diaphragm; the liquid storage chamber communicates with a liquid outlet; and the gas inflation chamber communicates with a gas inlet. The interior of a gas generation mechanism is partitioned into a chemical agent chamber and a buffering gas chamber through a partition plate; the chemical agent chamber communicates with the buffering gas chamber through gas holes in the partition plate; the buffering gas chamber communicates with the gas inflation chamber; and the ignition end of an ignition mechanism is located in the chemical agent chamber. The optimally-designed bus fire extinguishing device based on atomization spraying is reasonable in structural design; the gas generation mechanism is made to react and generate gas through the ignition mechanism; and the interior of the gas inflation chamber is inflated with the generated gas through the buffering gas chamber, and therefore a water-series fire extinguishing agent in the liquid storage chamber is pressurized through the deformable diaphragm, atomization spraying is achieved, the size is small, installation is convenient and fast, fast fire extinguishment in a closed space can be achieved without external power, injuries to human bodies are avoided, and the fire extinguishing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing, in particular to a bus fire extinguishing device based on atomization spraying. Background technique [0002] The scale of Chinese cities is constantly expanding, and it is necessary to develop public transportation to alleviate traffic congestion. In public transportation, buses are a major component, and there are thousands of buses actually put into operation in medium-sized cities. At the same time, with the guidance of the national new energy strategy, the proportion of pure electric buses is also increasing. Since 2009, bus arson cases and new energy bus spontaneous combustion incidents have attracted widespread attention. If it happened on a bus full of passengers, it would cause a large number of casualties. [0003] The compartment fire extinguishing facility that present bus is equipped with mainly comprises the fire extinguishing bomb that utilizes detonating cord to explod...

AI Technical Summary

Problems solved by technology

[0005] 1. The operation of the device requires a large power supply provided by the on-board power supply. Once the power supply line is cut off due to a fire, it cannot continue to work;

[0006] 2. It takes a certain time for the air compressor to start to reach the rated pressure, about 10 seconds, and the best time to extinguish the fire is missed;

[0007] 3. The cost is too high to promote the application

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