Verifying device for gas drainage comprehensive parameter tester

Abstract

The invention discloses a verifying device for a gas drainage comprehensive parameter tester. The verifying device comprises a casing, and a concentration and pressure verifying portion is arranged in the casing. The concentration and pressure verifying portion comprises a gas inlet valve, a first adjusting valve and a socket base which are connected in series through a pipeline successively, wherein the socket base for being connected with a corresponding gas drainage comprehensive parameter tester is provided with a gas inlet, a gas outlet and a socket which are communicated, and the socket is used for the gas drainage comprehensive parameter tester to be plugged in. The first adjusting valve is connected with the gas inlet of the socket base, and braches of gas vents are arranged at two ends at the gas outlet position of the socket base. A positive-pressure switching valve is connected onto one of the branches, and a negative-pressure, a gas-pressure meter and a second adjusting valve and a vacuum pump are connected onto the other branch successively. An outlet of the vacuum pump is connected to the gas vent of the branch where the vacuum pump is placed. By means of the verifying device for the gas drainage comprehensive parameter tester, the pipeline gas drainage comprehensive parameter tester verifying efficiency is improved, and the verifying process is simplified.

Description

technical field [0001] The invention relates to a mine detection instrument, in particular to a calibration device for a gas drainage comprehensive parameter measuring instrument. Background technique [0002] The pipeline gas comprehensive parameter measuring instrument is a common equipment in coal mines. It is used to detect the underground environment, so as to provide a basis for judging whether there is danger. Therefore, the accuracy of the gas comprehensive parameter measuring instrument directly affects the judgment result. The calibration of the gas comprehensive parameter measuring instrument testing becomes extremely important. The parameters detected by the comprehensive parameter instrument mainly include temperature, flow, pressure and methane concentration, etc. The calibration of the parameter instrument is mainly divided into the following aspects: relative pressure test accuracy calibration, absolute pressure test accuracy Calibration, methane concentrati...

AI Technical Summary

Problems solved by technology

In the prior art, the calibration of the above-mentioned parameters is carried out by different instruments, and there are problems such as a large number of calibration instruments, cumbersome operation, and low calibration efficiency.

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