Optimization of gas chamber design of mine-used catalytic methane sensor based on CFD

In order to optimize the response speed of the catalytic methane sensor used in mine, the flow field and methane diffusion characteristics inside the sensor chamber were simulated and analyzed by computational fluid dynamics (CFD). By changing the design of the inlet and outlet, and using the screw matching clearance to exhaust, the methane diffusion in the gas chamber is accelerated successfully, and the response time of the sensor is reduced by more than 30%.