Dry powder fire extinguishing device and method for intelligent inspection equipment in tunnels

Abstract

The invention discloses a dry powder extinguishing device and method used for intelligent patrol equipment in a tunnel. The dry powder extinguishing device comprises an extinguishing device tank body, a valve, a dry powder plug, a glass bulb, a heat-sensitive coil, a seal joint, a pressure meter, a pressure meter connecting sleeve, a pressure meter fixing sleeve, a seal cap, an air plug, a valve seal cabin, a spray nozzle fixing seat, a spray nozzle guide cover and a seal cabin fixing seat. According to the dry powder extinguishing device, a passive extinguishing state in which a fixed fire device cannot cover a large area of the tunnel when a dangerous case occurs in the cable tunnel is changed, a fire source is actively traced and extinguished, a cable is protected from being further damaged to a great extent, and a major accident is avoided; dry powder can be horizontally jetted, the effective jet distance is 3-10 meters when a spray nozzle is 1.5-meter away from the ground, the fire extinguishing operation can be carried out in a position 3 meters away from the fire source, and the defect that a conventional fixed suspension-type dry powder extinguishing device only can jet the dry powder vertically and downward is overcome.

Description

technical field [0001] The invention relates to a dry powder fire extinguishing device and method used for intelligent inspection equipment in tunnels. Background technique [0002] Urban cable tunnels are widely distributed. The route of this kind of cable tunnel project is basically in the central area of ​​the city. Once a fire occurs, it will endanger the safety of the city. Therefore, measures should be taken to prevent the occurrence of cable tunnel fires. The cables in the cable tunnel are flammable and produce a lot of dense smoke and flammable gas when burned. The space of the cable tunnel is long and narrow, and the flame spreads and burns rapidly along the cable. The dense smoke, toxic gas, and high temperature and heat generated in the tunnel accumulate in the tunnel, which not only corrodes and damages electrical equipment, but also is very harmful to the human body, threatening human life and safety, and it is difficult to fight fires. larger. Moreover, once ...

AI Technical Summary

Problems solved by technology

[0003] At present, cable tunnels are basically equipped with fire-fighting water supply and fire-fighting supporting facilities, but they are limited to fixed devices in the tunnel, and the distance between them is relatively long, and the fire-fighting range is limited. Once a dangerous situation occurs, the response is often delayed, and the success rate of fire-fighting is poor.

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