On-line determinator for mine gas explosion triangle and fire risk recognition

Abstract

The invention relates to an on-line determinator for mine gas explosion triangle and fire risk recognition. The on-line determinator comprises a sampling point, wherein the sampling point is sequentially connected with a main pump motor, a dewaterer, a dust collector and a branching unit by pipes. The on-line determinator is characterized in that the branching unit is connected with a plurality of gas sensors in an intrinsic safety housing by pipes; a temperature sensor at the sampling point is electrically connected with a central processing unit; an intrinsic safety power supply module is electrically connected with the main pump motor, the gas sensors and the central processing unit respectively; the central processing unit is electrically connected with the gas sensors, a display and acousto-optic alarm module, an infrared remote controller and communication modules respectively; and the communication modules are electrically connected with an industrial personnel computer by a bus. The on-line determinator can provide real-time and continuous monitoring of mine gas and temperature for any place of a mine, can forecast mine fire and gas explosion risks, and can be moved flexibly at any time, so that rescue after a disaster and fixed point monitoring of the mine are facilitated; and a determination method of the on-line determinator is provided, so that the real-time and continuous monitoring, and real-time analysis and alarm are realized.

Description

technical field [0001] The invention relates to a coal mine safety detection instrument, and mainly relates to a mine gas explosion triangle and an on-line measuring instrument for fire hazard identification. Background technique [0002] At present, gas monitoring in mines mostly adopts the beam tube monitoring system, and the ground industrial computer realizes the explosion triangle judgment and fire hazard identification. However, the cable tube monitoring system has a long laying distance, serious air leakage or blockage, difficult maintenance, and cannot accurately and timely respond to the actual situation in the well; it cannot monitor continuously in real time for 24 hours. Due to the long distance, its The results of the analysis data lag behind, so the real-time performance is poor. At the same time, there is currently no online spectral explosion triangle and fire hazard identification detector. The methane method is measured by thermal conductivity. The measure...

AI Technical Summary

Problems solved by technology

However, the cable tube monitoring system has a long laying distance, serious air leakage or blockage, difficult maintenance, and cannot accurately and timely respond to the actual situation in the well; it cannot monitor continuously in real time for 24 hours. Due to the long distance, its The analysis data results lag behind, so the real-time performance is poor

At the same time, there is currently no online spectral explosion triangle and fire hazard identification measuring instrument. The methane method is used for thermal conductivity measurement. The measurement results are seriously affected by carbon dioxide and water vapor, and the measurement accuracy is low in the (0-15)% low-concentration section; The electrochemical method for carbon dioxide measurement is seriously affected by interfering gases and water vapor; the electrochemical method for carbon monoxide measurement is seriously affected by interfering gases and water vapor; the electrochemical method for oxygen measurement has large errors at low concentrations

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