Low-concentration methane sensor for GJC4 mine

Abstract

The invention provides a low-concentration methane sensor for a GJC4 mine. The sensor is simple in structure and reasonable in design. Air information firstly collected through the methane sensor is transmitted to a data storage module to be stored, then transmitted to a wireless receiving and transmitting module, transmitted to an A/D converter through the wireless receiving and transmitting module and converted into a digital signal through the A/D converter; the digital signal is transmitted to a single-chip microcomputer to be digitally processed, the digital signal digitally processed by the single-chip microcomputer is transmitted to a controller, and after the digital signal is processed through the controller, a corresponding methane concentration value is displayed in a digital mode; when the concentration of methane reaches and exceeds a set alarm point, an alarm circuit sends out an alarm signal, the testing effect is better, safety performance is higher, performance is stable, responses are quick, and precision is high. Meanwhile, the overall operation is easy, use is convenient, the structure is novel, appearance is unique, the size is small, the weight is low, the low-concentration methane sensor is convenient to carry, the functions are diversified, use time is long, the detection range is wide, and requirements of manufacturers can be better met.

Description

technical field [0001] The invention relates to the technical field of detectors, in particular to a low-concentration methane sensor for GJC4 coal mines. Background technique [0002] The low-concentration methane sensor for coal mines is mainly suitable for underground coal mines and other places with explosive gases. It is matched with power-off instruments such as fixed methane alarm and power-off instruments for mines. It can be used for continuous monitoring of large and medium-sized underground mining equipment and other electromechanical equipment. The methane concentration in the wind flow near the equipment can also be used in fixed places. When the methane concentration reaches or exceeds the alarm point, the sensor immediately sends out sound and light alarm signals. When the methane concentration reaches or exceeds the power-off point, the control power-off device immediately cuts off To ensure production safety, the existing low-concentration methane sensors fo...

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a GJC4 low-concentration methane sensor for coal mines, which solves the problem that the existing low-concentration methane sensors for coal mines have a single alarm function, short working hours, small detection range, and reduced safety performance to a certain extent.

Images