Explosion-venting inner cylinder of aerosol extinguishing device

Abstract

The invention relates to an explosion-venting inner cylinder of an aerosol extinguishing device. The inner cylinder comprises a cylinder body and a cylinder cover assembly arranged at one end of the cylinder body; the cylinder body is further provided with an explosion venting device; and the explosion venting device comprises a frictional layer, a connecting rod, a guiding unit and a stop means. The connecting rod is connected with the cylinder cover assembly; the frictional layer is arranged between the connecting rod and the cylinder body, and when the connecting rod moves along the injection direction of thermal current of the cylinder body under the guiding action of the guiding unit, the frictional layer provides the connecting rod with frictional resistance and buffering power; the guiding unit is a device capable of guiding the connecting rod when the connecting rod moves; the stop means is in fixed connection with the cylinder cover assembly and the connecting rod; and when the end of the connecting rod slides to the cylinder cover assembly, the stop means limits the position of the connecting rod. According to the invention, kinetic energy generated by detonation is mainly consumed through moving and spacing of the explosion venting device, and thus, the purpose of safe and effective explosion venting is achieved, and damage to human bodies and articles caused by detonation of propellant grain is avoided.

Description

technical field [0001] The invention belongs to the technical field of fire fighting and fire extinguishing, in particular to an aerosol aerosol fire extinguishing device capable of explosion-proof pressure relief and recoil reduction. Background technique [0002] The existing aerosol aerosol fire extinguishing device usually mainly includes an inner cylinder body, a cylinder cover assembly arranged on the inner cylinder body, and a pyrotechnic agent, an ignition head, and a coolant coated by heat-insulating materials, which are sequentially arranged in the inner cylinder body. , ceramic sheets, etc. Under normal circumstances, after the ignition head ignites the pyrotechnic agent, the powder column generates a large amount of aerosol smoke through relatively rapid layered combustion. Spray out and directly act on the fire source to achieve the purpose of extinguishing the fire. However, if there is a defect in the cladding layer, a crack in the pyrotechnic powder column, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the aerosol fire extinguishing device in the prior art does not have any explosion-proof and pressure-relief measures, the recoil will be generated after the deflagration of the powder column or the explosion of the cylinder or the damage of the component falling off In order to solve the problem of potential safety hazards of people or objects, the present invention provides an inner cylinder of an explosion-venting aerosol fire extinguishing device

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