Carbon dioxide sensor for GRH5 coal mine

Abstract

The invention relates to a carbon dioxide sensor for a GRH5 coal mine. The carbon dioxide sensor comprises a shell and a carbon dioxide monitoring device, wherein the shell comprises an upper shell, a lower shell and a handle; a display window and an alarm window are arranged on the upper shell; the lower shell comprises a sensor accommodating chamber and gas monitoring chambers arranged at two sides of the sensor accommodating chamber; a plurality of air vents are uniformly formed in the gas monitoring chambers; the carbon dioxide monitoring device comprises a battery, a carbon dioxide sensor, a signal converter, a signal amplifier, a filter, a carrier catalyzing element, a data acquisition card, a data memory, a singlechip microcomputer, a Nixie tube displayer, an alarm apparatus and a wireless transmission module. According to the carbon dioxide sensor, an electronic sensor in intelligent control of an embedded microcontroller unit and four-bit Nixie tube display is adopted, and the sensor is simple to operate, convenient to use, and safe and reliable, is mainly used for carbon dioxide detection and alarm, and can achieve a detection range of 0-5%CO2 for the carbon dioxide.

Description

technical field [0001] The invention relates to a gas detector, in particular to a carbon dioxide sensor for GRH5 coal mines. Background technique [0002] my country is the world's largest coal producer and consumer, and one of the few countries in the world that uses coal as its main energy source. In the process of coal mining, a variety of harmful gases coexist in the coal seam, such as CH4, CO, SO2, NH3, etc., the latter two gases have a small content and are soluble in water, which can be treated by spraying water; but the content of CH4 and CO It is a flammable and explosive gas, and the gas concentration reaches the explosion limit. When there is enough oxygen and an ignition source at a certain temperature, a gas explosion will occur, which will endanger the lives of coal miners. brought hidden dangers. The gas with high CO2 content, if the concentration is too high, it will affect people's breathing, and it is easy to cause suffocation and death. The content of ...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing oxygen sensors have poor sensitivity and stability, short working hours, and are not suitable for mining in mines. At the same time, the detection range of dangerous gases is relatively small, which reduces the safety performance to a certain extent.

Images