Device used for detecting methane gas and method for detecting methane gas

Abstract

The invention relates to a device used for detecting methane gas and a method for detecting the methane gas. The device used for detecting the methane gas comprises a first pillar and a second pillar arranged in a to-be-detected area; an optical probe comprising a laser aligner and a probe and a controller and a laser which are connected with the optical probe are arranged on the first pillar, and a laser output end of the laser corresponds to a laser input end of the laser aligner; a reflection surface with a reflective-angle crystal structure is arranged on the second pillar, and laser emitted from the optical probe can be reflected to the probe; the controller electrically and respectively connected with the probe and the laser can control the laser to emit laser 1653nm in wave length and calculate concentration of the methane gas between the first pillar and the second pillar according to the laser received by the probe. By the arrangement, optical path can be increased with limited space, and detection accuracy is improved; the device is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to a device for detecting methane gas and a method for detecting methane gas. Background technique [0002] In underground pipelines, mines and other places, due to the possible presence of methane, which is a flammable and explosive gas, accidents often occur due to the backward detection technology and management level, which not only cause huge economic losses, but also cause adverse social impacts , causing pollution to the environment. Therefore, in order to ensure the safety of life and property, when working in such places, it is necessary to detect the gas inside it in real time. [0003] In order to ensure safe production and social stability, it is imperative to detect methane gas leakage in the area to be detected. Among the various systems used to detect the concentration of methane gas in the area to be detected, compared with infrared and thermal detection devic...

AI Technical Summary

Problems solved by technology

The traditional laser detection method is to place the laser emitting end and the laser receiving end on both sides. In order to ensure the accuracy of methane gas concentration detection, a longer range is required, that is, the distance between the laser emitting end and the laser receiving end is required. Not easy to measure

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