Instrument for monitoring gas emission quantity in roadway

Abstract

The invention discloses an instrument for monitoring gas emission quantity in a roadway. The instrument mainly comprises a data processing module, a gas concentration sensor, a wind speed sensor, a signal conditioning circuit, an A / D (Analog / Digital) converter, a digital keyboard, a liquid crystal display and an upper computer, wherein the data processing module is used for receiving and storing a gas concentration signal and a wind speed signal after conversion, calculating to obtain the gas emission quantity, and outputting the gas emission quantity, the gas concentration and the wind speed at the same time; the digital keyboard is used for inputting the cross section information of the roadway; the signal conditioning circuit is used for amplifying and filtering an analogue signal; the A / D converter is used for converting the analogue signal into a corresponding digital signal; and the upper computer is used for acquiring the wind speed, the gas concentration and the gas emission quantity output after the analysis of the data processing module, calculating, processing and displaying a time-varying curved line of the wind speed, the gas concentration and the gas emission quantity of the measured point. The instrument is real-time, quick and accurate, and is particularly suitable for real-time monitoring and warning of burst or emission of a large amount of gases.

Description

Technical field: [0001] The invention relates to the field of gas gushing amount monitoring, is an intelligent monitoring method for monitoring the gas gushing amount per unit time in a roadway, and belongs to the field of electronic technology. Background technique: [0002] Coal and gas outburst is an extremely complex mine gas dynamic phenomenon encountered in the process of coal mine production. In the process of coal and gas outburst, not only a large amount of coal powder may be thrown from the coal body into the roadway or stope in a very short period of time, but also a large amount of gas will be gushed out, causing serious property losses and casualties. Gas monitoring mainly uses various equipment to monitor the gas concentration and outflow in real time so that measures can be taken in time. At present, the gas concentration meter is mainly used. When there is a large amount of gas influx in the tunnel, the gas concentration and its changes in the tunnel can be ...

AI Technical Summary

Problems solved by technology

In short, there is no effective method for monitoring the gas influx in the roadway, and the existing technologies or methods for monitoring the gas flow still have various deficiencies

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