Technology for extinguishing fire by inert gas generated by air duct direct connection inert gas generator

Abstract

The invention discloses a technology for extinguishing fire by inert gas generated by an air duct direct connection inert gas generator. An original water supply and cooling system of a DQP-200 type inert gas generation device is improved, a multifunctional guider device for water drainage and pressure relief is designed and added, the inert gas generation device is quickly and organically combined with a tunneling head fan and an air duct after improvement, inert gas after cooling, pressure reduction and water drainage is conveyed to a single-head roadway tunneling head through the fan and the air duct, the inert gas is used for replacing fresh air flow originally supplied by the fan to normally ventilate the tunneling head, a fire source is subjected to oxygen deficit suffocation on the premise that the air volume of the tunneling head is kept approximately unchanged and the gas concentration does not reach the explosion range, and the purpose of long-distance fire extinguishing is achieved, so that the rapid, safe and efficient fire extinguishing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of coal mine fire extinguishing, which combines a DQP-200 type inert gas generating device with a single-head roadway fan to extinguish fire. Background technique [0002] At present, there is no other safer, more reliable, quicker and more effective treatment method except remote sealing and flooding when a fire accident occurs in a single-headed mine roadway. Long-distance sealing and water flooding (only available in the single-headed roadway down the mountain) are used to deal with fire accidents in the single-headed roadway of the mine. Although it is relatively safe, the closed area of ​​the fire area is large, the fire area is extinguished, and the subsequent resumption of work and production takes a long time. , affecting the normal production of the mine. After the mine tunnel fire accident occurs, it is very complicated to deal with the location, location, environment and other factors, and if the...

AI Technical Summary

Problems solved by technology

Long-distance sealing and water flooding (only available in the single-headed roadway down the mountain) are used to deal with fire accidents in the single-headed roadway of the mine. Although it is relatively safe, the closed area of ​​the fire area is large, the fire area is extinguished, and the subsequent resumption of work and production takes a long time. , affecting the normal production of the mine

After the mine tunnel fire accident occurs, it is very complicated to deal with the location, location, environment and other factors, and if the treatment methods and measures are not correct, secondary accidents such as gas explosions will occur

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