Aerosol fire extinguishing apparatus explosion venting method

Abstract

The invention discloses an aerosol fire extinguishing apparatus explosion venting method. When an aerosol fire extinguishing apparatus is detonated, a generating agent barrel of an explosion venting mechanism matched with the aerosol fire extinguishing apparatus can reversely make limited displacement in the hot airflow injection direction of the aerosol fire extinguishing apparatus. When a limiting ring on the generating agent barrel of the explosion venting mechanism makes contact with a radial-direction edge turning fixing structure, the generating agent barrel of the explosion venting mechanism can be limited to be stopped, displacement can be generated reversely in the hot airflow injection direction of the aerosol fire extinguishing apparatus, and thus the explosion venting purpose of the aerosol fire extinguishing apparatus is achieved. By adoption of the aerosol fire extinguishing apparatus explosion venting method, powerful kinetic energy of the relative movement between the generating agent barrel and an explosion venting mechanism assembly due to explosion is fully consumed within the limited displacement of the generating agent barrel of the explosion venting mechanism,and powerful detonation energy can be removed gently, and the phenomenon that explosion happens to cause unexpected accidents to injure personnel or damage goods can be avoided.

Description

technical field [0001] The invention relates to gas fire extinguishing technology in the field of fire safety, in particular to an explosion venting method for an aerosol fire extinguishing device. Background technique [0002] At present, existing fire extinguishers use pyrotechnic agents with a faster burning rate as the main agent, which are molded into powder columns and fixed in the generant cylinder, and coolant is added before the discharge port of the generant cylinder. When the product works normally, the powder column will generate a large amount of aerosol smoke through orderly layered combustion. These high-temperature aerosols will be sprayed out from the nozzle after being cooled by the coolant layer, and directly act on the fire source to achieve the purpose of fire extinguishing. However, if there are cracks in the pyrotechnic powder column or serious blockage of the gas passage, it may cause a sudden increase in the pressure in the cylinder, resulting in def...

AI Technical Summary

Problems solved by technology

However, if there are cracks in the pyrotechnic powder column or serious blockage of the gas passage, it may cause a sudden increase in the pressure in the cylinder, resulting in deflagration of the powder column, and the sudden rise of ultra-high pressure gas is too late to release. Once the pressure exceeds the pressure limit of the device itself, An explosion will occur, causing serious damage to the operator and surrounding machinery and equipment

[0003] However, most of the current aerosol fire extinguishing devices do not have corresponding measures or means to solve the above problems. Therefore, the structure of the existing aerosol fire extinguishing devices must be improved to effectively avoid personal injury and other injuries caused by deflagration.

Images