Mining movable liquid carbon dioxide fire preventing and extinguishing system

Abstract

The invention relates to fire preventing and extinguishing systems, in particular to a mining movable liquid carbon dioxide fire preventing and extinguishing system. The problems that an existing fire extinguishing device is hard to transport underground, prone to leakage, unable to be inspected by itself, unstable in storage tank pressure and low in cooling and inerting efficiency are solved. The system comprises a ground liquid carbon dioxide storage tank, an underground movable liquid carbon dioxide tank car and an anti-explosion aerogel pipe. The ground liquid carbon dioxide storage tank and the underground movable liquid carbon dioxide tank car both comprise an anti-explosion operation box and a storage groove formed in the anti-explosion operation box, and each storage groove is mainly composed of a steel outer layer, a stainless steel inner layer and an aerogel composite heat preservation material middle layer. The underground movable liquid carbon dioxide tank car is further provided with a leakage monitoring alarming and locking device, a distributed optical fiber Brillouin scattering temperature strain monitoring and fault diagnosis device, a safety valve and a passive self-pressurization device. The system is mainly used for fire preventing and extinguishing of underground coal mines.

Description

technical field [0001] The invention relates to a fire prevention system, in particular to a mining mobile liquid carbon dioxide fire prevention system. Background technique [0002] The coal industry has entered the era of scientific and technological production, and the emphasis on safety production is getting higher and higher. Coal fire is one of the five major disasters in mine safety production. Effective prevention and control of it is the main guarantee to ensure mine safety production. Therefore, efficient mine fire prevention and extinguishing technical equipment is particularly important. Liquid carbon dioxide fire extinguishing technology is widely used because of its good inerting cooling effect, strong fire extinguishing ability, fast speed, wide application range, and non-corrosive equipment. At present, carbon dioxide chemical fire extinguishing and gas storage tank fire extinguishing methods are mainly used. The fire extinguishing devices used in these two ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of difficult underground transportation, easy leakage, failure self-inspection and low cooling and inerting efficiency of existing fire extinguishing devices, and to provide a mining mobile that is convenient for underground transportation and can perform leakage monitoring and fault self-diagnosis. Liquid carbon dioxide fire extinguishing system

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