Minepit environment flammable gas analyzing method and device

Abstract

This is an analytical method and device of the combustible gas in the mine ,which belongs to detecting and analyzing the various combustible gases around the industrial and mining area. This analytical method uses a catalytic sensor and puts it around the mixed combustible gas with the single chip outputting the controlling signal towards the electric field controller which exerts different electric fields to the catalytic sensor. The catalytic sensor exports the signal of different and mixed combustible gas that is input to the single chip through the closed loop monitor. The single chip analyses the combustible gas including its kind and viscosity and layouts the result via the DDU. This device adds two metallic polar plates to the catalytic sensor which is exerted different electric fields by the electric field controller through the program control. The closed loop monitor adjusts the working current of the catalytic sensor and outputs the sample signal of the current. The circuit of the single chip exercises the analog-to-digital conversion towards the detecting signal, processes the data and finally layouts the analytical results of the combustible gas through the DDU.

Description

technical field [0001] The invention relates to a method and a device for detecting and analyzing various combustible gases in an industrial and mining environment, in particular to a method and a device for analyzing combustible gases in a mine environment. Background technique [0002] There are generally two types of existing combustible gas analysis devices, one is a gas chromatograph; the other is a sensor detector. Gas chromatography is used to detect combustible gases. Usually, the combustible gas is sampled first, and then the sampled combustible gas is put into a combustible gas analysis device, and the combustible gas is detected and analyzed by gas chromatography. The operation process of the analysis device It is complicated and takes a long time to get the results; using a sensor detector to detect combustible gases is easy to use and can carry out real-time continuous monitoring, but when sampling a variety of combustible gases, it is necessary to use a sensor ...

AI Technical Summary

Problems solved by technology

Gas chromatography is used to detect combustible gases. Usually, the combustible gas is sampled first, and then the sampled combustible gas is put into a combustible gas analysis device, and the combustible gas is detected and analyzed by gas chromatography. The operation process of the analysis device It is complicated and takes a long time to get the results; using a sensor detector to detect combustible gases is easy to use and can carry out real-time continuous monitoring, but when sampling a variety of combustible gases, it is necessary to use a sensor array composed of multiple sensors. In order to realize the detection and analysis of various combustible gases, this method not only has a high manufacturing cost of equipment, but also affects the accuracy of combustible gas analysis due to the cross-sensitivity of each sensor in the device to all combustible gases

Images