Isolated type fire extinguishing system for underground coal mine

Abstract

The invention discloses an isolated type fire extinguishing system for an underground coal mine. The isolated type fire extinguishing system includes a mine, wherein sliding cavities are formed in theinner walls of the two ends of the mine, first magnetic blocks are slidably connected into the sliding cavities in a sealed mode, the first magnetic blocks are elastically connected to the inner topsof the sliding cavities through springs, and the sliding cavities are divided into upper cavities and lower cavities by the first magnetic blocks. According to the isolated type fire extinguishing system, through arrangement of a water spraying mechanism, the first magnetic blocks, second magnetic blocks, a telescopic air bag and a memory metal sheet, when the fire temperature in the mine rises,evaporation liquid is heated to evaporate to push the first magnetic blocks to move downwards, so that the second magnetic blocks and sealing covers are driven to move downwards; the first magnetic blocks move downwards to extrude the air in the sliding cavities into a water storage cavity, so that water in the water storage cavity is extruded out to minimize the fire; when the sealing covers aremoved down to the inner bottom of the mine, a closed space is formed to isolate oxygen, so that the fire is put out; and in addition, the memory metal sheet is deformed by heat, the telescopic air bagis stretched, and the air in the closed space is extracted to further accelerate the fire extinguishing speed.

Description

technical field [0001] The invention relates to the field of coal mine underground fire extinguishing equipment, in particular to an isolated fire extinguishing system for coal mine underground. Background technique [0002] A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form the underground coal mine production system. With the rapid development of society, the demand for coal mines is also increasing, so many mines have been built. Because there is a large amount of coal in the mine, once a fire occurs accidentally and cannot be extinguished in time, it will have unpredictable and serious consequences. [0003] Although the existing electronic fire extinguishers and alarms are advanced and easy to use, there are many sensors and electronic chips installed inside. For the mine, due to its own particularity, it is not safe for non-mining professionals to enter the mine, and the inside of the mine is narrow and the terrain ...

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Problems solved by technology

[0002] A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form the underground coal mine production system. With the rapid development of society, the demand for coal mines is also increasing, so many mines have been built. It is used in coal mine mining. Since there is a large amount of coal in the mine, once a fire occurs accidentally and cannot be extinguished in time, it will have unpredictable and serious consequences.

[0003] Although the existing electronic fire extinguishers and alarms are advanced and easy to use, there are many sensors and electronic chips installed inside. For the mine, due to its own particularity, it is not safe for non-mining professionals to enter the mine, and the inside of the mine is narrow and the terrain is complex, which is doomed to fail to meet the installation and maintenance requirements of electronic fire extinguishers and alarms. Therefore, it is necessary to propose a A fire extinguishing device capable of automatically extinguishing fires in mines

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