Liquid carbon dioxide fire extinguishing device for emergency rescue in disaster areas

Abstract

The invention discloses a liquid carbon dioxide fire extinguishing device for emergency rescue in disaster areas. The liquid carbon dioxide fire extinguishing device comprises a liquid carbon dioxide storage tank, and a base for bearing and fixing, wherein the storage tank adopts a double-layer vacuum composite structure with a thermal insulation material, so that the heat preservation storage time of liquid carbon dioxide is prolonged; liquid discharged by a liquid discharge valve in a control valve set is conveyed to a burning area through a liquid conveying pipe, a confluence assembly and a distant conveying pipeline in sequence; the gasification spraying is realized by a nozzle; and all pipelines are inserted in corresponding joints through quick joints. The liquid carbon dioxide fire extinguishing device further comprises a boosting control system capable of effectively performing the air pressure compensation for the storage tank to prevent the ice blockage in the liquid discharging and gasification spraying process; the boosting control system consists of a compressed gas cylinder, a gas cylinder valve, a pressure reducer and a conveying gas way connected with the storage tank, which are connected in sequence; and the conveying gas way comprises manual and automatic control gas ways, and is provided with a gas conveying pipe I and a gas conveying pipe II respectively connected with a gas boosting valve I and a gas boosting valve II in the control valve set.

Description

technical field [0001] The invention relates to a fire extinguishing device, in particular to a liquid carbon dioxide fire extinguishing device for emergency rescue in disaster areas. Background technique [0002] Carbon dioxide fire extinguishing technology uses the principle that liquid carbon dioxide does not support combustion and absorbs a large amount of heat when it is gasified to achieve the purpose of cooling down and extinguishing fires. The zone space will instantly expand and gasify nearly 700 times, and absorb a large amount of heat, which can quickly suppress explosions, inert the fire zone, extinguish the fire source and cool down, and is very suitable for emergency rescue and fire fighting. The existing mobile liquid carbon dioxide fire extinguishing device generally includes a storage tank for storing liquid carbon dioxide and a base for carrying and fixing the storage tank. The storage tank is connected with a pressure gauge, a liquid level gauge and a cont...

AI Technical Summary

Problems solved by technology

The existing mobile liquid carbon dioxide fire extinguishing device generally includes a storage tank for storing liquid carbon dioxide and a base for carrying and fixing the storage tank. The storage tank is connected with a pressure gauge, a liquid level gauge and a control valve group. Monitor the pressure in the tank in real time, monitor the liquid level in the tank in real time through the liquid level gauge, and realize the functions of filling, draining, and pressure relief through the control valve group and pipeline group; however, the technical performance of the device itself and the technology for emergency rescue There are obvious deficiencies in measures and adaptability to the environment, especially the lack of an air pressure compensation mechanism for the storage tank. When the pressure in the storage tank continues to drop, it will not only affect the injection efficiency of liquid carbon dioxide, but will even cause damage in pipes, valves, etc. The formation of carbon dioxide condensation to produce dry ice causes pipe blockage and serious obstacles to the fire extinguishing system

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