Electromagnetic radiation detection device and method for potential fire danger of mine

Abstract

The invention provides an electromagnetic radiation detection device and method for potential fire danger of a mine and belongs to a fire detection device and method. According to the electromagnetic radiation detection device and method, electromagnetic radiation signals generated in the temperature rising or burning process of a coal body are detected and analyzed, and then the potential fire danger of the mine is detected. The detection device comprises a perpendicular directionally receiving antenna set and a monitoring host. The detection method includes the steps that the effective receiving direction of the perpendicular directionally receiving antenna set faces a detection area, the value and the main direction of electromagnetic radiation are measured and calculated; a crossed position of main directions of different measuring points is a potential fire danger area; it is judged that fire danger exists in the area according to the average value of electromagnetic radiation indexes in the potential danger area or a dynamic change trend of the electromagnetic radiation indexes in multiple measurements in a critical value mode and a dynamic change trend mode when the electromagnetic radiation indexes or the dynamic change trend exceeds a corresponding critical value. Through the electromagnetic radiation detection device and method, potential fire risks and the potential fire danger area can be detected in time and space; the electromagnetic radiation detection device and method have the advantages of being efficient, fast and convenient.

Description

technical field [0001] The invention relates to a fire detection device and method, in particular to a mine concealed fire hazard electromagnetic radiation detection device and method. [0002] The invention relates to detection and early warning of coal heating and combustion in coal seams and goafs, and specifically relates to an electromagnetic radiation detection device and method for concealed fire hazards in mines. Background technique [0003] Mine fires include external fires and internal fires. Internal fires are coal fires that tend to spontaneously ignite under certain conditions, and have the characteristics of latent and sudden. Mine fires often lead to casualties, equipment loss, mine shutdown, resource destruction, and even explosions of gas, coal dust or sulfide mine dust, which have an important impact on mine production and personnel safety. Due to the relatively narrow space and the special environment in the underground mine, it is difficult to accuratel...

AI Technical Summary

Problems solved by technology

This method is mainly used for early forecasting and cannot detect hidden fire sources or the range of fire hazards

(2) Visible light image analysis method uses visible light images for fire analysis. Since visible light images have little correlation with fire thermal characteristics, there are defects in the algorithm complexity and low accuracy.

This kind of detection device is mostly realized by near-infrared temperature measuring instrument, which is seriously affected by the distance and cannot accurately detect the fire source

(4) Aerospace remote sensing technology, as a coal mine (field) fire detection technology, has been in the research and application stage due to its low resolution, and has not been promoted and recognized by relevant departments as a new coal fire detection technology until now

However, during the detection process, the bundle tube is easily damaged by coal and rock, and cannot detect the fire hazards of deep coal bodies and goafs.

[0005] In the existing non-contact fire detection technology, the cost of the detection device is high; and because the layout of the sensor is easily affected by the special environment of the mine, and the detection area and location are easily limited by time and space, it is difficult to detect hidden fires in coal seams and goafs. However, there is no effective solution to the above-mentioned problems

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