Coal mine underground mobile gas beam tube sampling and monitoring device

Abstract

The invention relates to a coal mine underground mobile gas beam tube sampling and monitoring device which mainly structurally comprises a gas-water separator, a vacuum pump, a gas sampling and monitoring control cabinet, an oxygen sensor, a methane sensor, a carbon monoxide sensor, a circuit board, a sampling beam tube, a dust precipitator, a dehumidifier, a gas control valve, a gas flow meter, a pressure gauge and a negative pressure gauge; beam tube sampling, dust precipitation and dehumidification, gas-water separation, flow control, sensor information capturing, control cabinet monitoring and control and micro-computer information processing are adopted for pre-warning, forecasting, analyzing and displaying fire gas concentration, and working out the gas change law; the device has the advantages of advanced and reasonable design, compact structure, easy operation and convenient operation, can move in a long distance in coal mine underground to acquire and monitor the fire gas in different coal bed gob areas or closed spaces, the monitoring distance can reach 5000m, the measurement data is accurate and reliable, and the accuracy can reach 96 percent; and the device can also be used on the ground or other ores.

Description

technical field [0001] The invention relates to a coal mine underground mobile gas bundle tube sampling and monitoring device, which belongs to the technical field of coal mine underground fire gas bundle tube sampling and safety monitoring equipment and methods. Background technique [0002] Coal seam spontaneous combustion fire monitoring and early forecasting are the basis of coal mine fire prevention, forecasting and treatment, and the key to mine fire prevention and fire extinguishing. [0003] As long as the coal seam spontaneous combustion fire gas can be accurately and timely predicted early in the coal mine, preventive measures can be taken in a timely, accurate and effective manner to avoid spontaneous combustion fire accidents. [0004] Most coal seam spontaneous combustion fire predictions use ground fixed gas bundle tube sampling and monitoring, that is, the bundle tube is laid from the ground in advance to the goaf or confined space where underground personnel ...

AI Technical Summary

Problems solved by technology

[0004] Most coal seam spontaneous combustion fire predictions use ground fixed gas bundle tube sampling and monitoring, that is, the bundle tube is laid from the ground in advance to the goaf or confined space where underground personnel cannot reach, and the gas sample is drawn by a ground vacuum pump for monitoring. The fixed bundle tube monitoring system has long pipelines, long sampling and measurement time, easy water accumulation in the pipeline, dust easy to enter, difficult to remove after clogging, and easy damage to the pipeline, which makes the bundle tube sampling and monitoring difficult to carry out smoothly; there are many ground equipment and special management is required , the management technology requirements are high, and the cost of the monitoring system is also high; the sampling data is affected by the leakage of the pipeline, and the monitoring and analysis data is not accurate enough; there are other disadvantages in the sampling monitoring

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