Fire Monitoring and Early Warning System in Mine

Abstract

The invention discloses a spontaneous mine fire monitoring and early warning system. Spontaneous mine fire is good in concealing, and easily triggers secondary disasters of gas explosion and dust explosion, and causes large amount of casualties. An existing spontaneous mine fire alarm system is long in delay time, and misstatement or omission easily occurs. The system mainly comprises an information processing server, an alarm device, a communication network, a fire extinguishing apparatus, a gas concentration remote sensing device, and a temperature monitoring device. The system can monitor gas concentration and other characteristics in a monitored region environment through the gas concentration remote sensing device, and gives out fire alarm through comprehensive analysis on temperature and other monitoring data, and performs fire fighting. The system can accurately monitor characteristic gas of spontaneous fire, greatly improves alarm accuracy, and provides important guarantee for coal mine safety production.

Description

technical field [0001] The invention relates to a mine fire monitoring and early warning system, which involves the fields of sensor technology, laser technology, spectral analysis technology, signal processing technology and the like. Background technique [0002] Coal is the main energy in my country, accounting for about 70% of the primary energy. The coal industry is a high-risk industry, and accidents such as gas, fire, roof, and coal dust have plagued coal mine safety production. Fires in coal mines include internal fires and external fires. Internal fires are difficult to be discovered because of their strong concealment, and are likely to cause secondary disasters such as gas explosions and dust explosions, causing a large number of casualties. Therefore, it is of great significance to detect and extinguish the internal cause fire in time at the initial stage. The vast majority of internal fires in coal mines occur in hidden places, and it is difficult to find out ...

AI Technical Summary

Problems solved by technology

The vast majority of internal fires in coal mines occur in hidden places, and it is difficult to accurately and quickly find out the location and scope of hidden fire sources with traditional instrumentation detection technology

At present, the monitoring methods for internal fires mainly use gas monitoring and temperature monitoring. Gas monitoring is to extract sample gas through the bundle tube system to the ground for analysis of the marker gas. Due to the long path of gas extraction, gas leakage and pipe blockage are prone to occur, and The time delay of this method is long, and it is easy to miss the best time for fire extinguishing and escape. In addition, this monitoring method cannot accurately locate the fire source, which brings inconvenience to disaster relief.

At present, the optical fiber distribution temperature monitoring method has also been applied, but the optical fiber has problems such as easy damage, complicated installation, and difficult maintenance.

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