Energy storage type compressed gas foam fire extinguishing device

Abstract

The invention discloses an energy storage type compressed gas foam fire extinguishing device. The device comprises a pressure liquid storage tank, a foam generator and a pressure steel cylinder, wherein the pressure liquid storage tank is filled with foam fire extinguishing agent mixed liquid; a liquid inlet pipe for filling the foam fire extinguishing agent mixed liquid is arranged on the pressure liquid storage tank; compressed nitrogen or air is filled in the pressure steel cylinder; the pressure steel cylinder is connected with the pressure liquid storage tank through a gas conveying pipeline; the foam generator is arranged in the pressure liquid storage tank, and is positioned above the foam fire extinguishing agent mixed liquid; and a liquid nozzle, a gas inlet and a spoiler are arranged on the foam generator. The energy storage type compressed gas foam fire extinguishing device can greatly improve the mixing capacity of foam liquid and high-pressure gas, so that jetted foams are high in kinetic energy, the foam stability and the foam jetting strength are enhanced, and the penetrability of such low-boiling-point materials as epoxypropane to the foams in burning is effectively stopped.

Description

technical field [0001] The invention relates to a foam fire extinguishing device, in particular to an energy storage compressed gas foam fire extinguishing device. Background technique [0002] Propylene oxide belongs to Class A and B flammable liquids. It has low boiling point, high flame temperature, violent combustion, and strong heat radiation. When a fire occurs, it is difficult to extinguish, and there is a huge danger in the process of production, storage and transportation. Existing fire extinguishing devices configured with low-boiling flammable liquid storage tanks such as propylene oxide are air-breathing foam fire extinguishing systems, and what the fire extinguishing agent adopts is a solvent-resistant synthetic foam. But the test shows: this fire extinguishing device can only control the fire for a short time and cannot extinguish the fire completely, once a fire breaks out, it will not be able to effectively extinguish it. [0003] In order to overcome the po...

AI Technical Summary

Problems solved by technology

If the fire extinguishing concentration of the gas is too high, it will cause adverse effects on the human body; if the release time of the fire extinguishing agent is longer than 10 seconds, and the fire extinguishing concentration cannot be reached, acidic decomposition products harmful to the human body will be produced and the protective facilities will be corroded.

In addition, the foam flow rate of this type of fire extinguishing system is fixed and cannot be adjusted

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