Multifunctional roadway liquid nitrogen fire truck

Abstract

The multi-functional roadway liquid nitrogen extinguishing vehicle is a kind of fire-fighting equipment, which consists of a rail chassis that can be installed with rail wheels or automobile wheels, a liquid nitrogen storage, a normal temperature vaporizer, a vacuum insulating tube, an air jet hose, a closed DC lighting system, Respiratory oxygen supply and other components, no power system; the present invention is based on the physical and chemical properties of liquid nitrogen ultra-low temperature, nitrogen is non-flammable, nitrogen fire extinguishing is smokeless, odorless and does not produce ozone, and the liquid nitrogen is vaporized to form refrigerated nitrogen to submerge the coal seam, reduce the coal seam temperature and Fire extinguishing can be carried out by the method of causing hypoxia in the coal seam or even the roadway, and it can go deep into the roadway under the traction of coal mine locomotives or manpower to move flexibly; therefore, the present invention has the advantages of simplified structure, complete functions, large gas supply, and flexible and convenient fire extinguishing operations in the lower roadway And safety fire extinguishing, environmental protection fire extinguishing, energy-saving fire extinguishing, quick-acting fire extinguishing and other characteristics, not only suitable for fire extinguishing in coal mine roadways, but also suitable for fire extinguishing in other roadways or large-scale occasions.

Description

Technical field: [0001] The invention relates to fire fighting equipment, in particular to a fire extinguishing vehicle used for roadway fire fighting. Background technique: [0002] In coal mining, large-scale coal seam fire accidents caused by gas gas occur from time to time, and each mine fire accident has caused huge losses to national resources and people's lives and properties. Due to the particularity of the deep and long coal mine roadway, the existing vehicle-type fire extinguishing trucks are limited to go down the coal mine roadway because they contain combustible fuel or gas, and the chassis of the existing truck-type fire-fighting trucks are only equipped with gas tires, so it is difficult to get off. The coal mine roadway, which seems to be the same as the train track, plays a fire-extinguishing role; the existing fixed fire extinguishers cannot control the spread of large-area fires in the coal seam due to the limited storage of fire-extinguishing raw materia...

AI Technical Summary

Problems solved by technology

Due to the particularity of the deep and long coal mine roadway, the existing vehicle-type fire extinguishing trucks are limited to go down the coal mine roadway because they contain combustible fuel or gas, and the chassis of the existing truck-type fire-fighting trucks are only equipped with gas tires, so it is difficult to get off. The coal mine roadway, which is similar to the train track, plays the role of fire extinguishing; the existing fixed fire extinguishers cannot control the spread of large-scale fire in the coal seam due to the limited storage of fire extinguishing materials

The patents of China's disclosed liquid nitrogen fire-fighting trucks have publication numbers CN2652437, CN1522773, CN2483034, etc. These fire-fighting trucks are not provided with rail wheels adapted to travel in the roadway, nor are lighting devices and breathing oxygen supply devices arranged. It does not have the function of fire extinguishing operation and safety guarantee function in the lower roadway; the fire extinguishing method commonly used at present is to close the roadway and let the coal seam burn naturally. Although the fire extinguishing method is effective, there are disadvantages such as long closed burning time, lifesaving in the closed area, burning a large amount of raw coal in the fire layer, burning out production facilities, and polluting the production environment.

In the actual combat of roadway fire fighting, unpredictable situations may occur at any time, such as roadway locomotive failure, track blockage, lighting interruption, casualties, rescue and rescue, especially in the case of casualties and survivors, it is impossible to close the roadway mouth to extinguish the fire. It is also impossible to choose. At this time, emergency rescue and lifesaving have become a pair of contradictions. Both of them are against the clock. The existing fire extinguishing equipment and technology are difficult to solve this pair of contradictions.

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