基于CFD的矿用催化甲烷传感器气室设计优化  

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

作　　者：顾仁勇 蒋泽 GU Renyong;JIANG Ze(Tiatidi(Changzhou)Automation Co.,Ltd.,Changzhou 213001,China)

机构地区：[1]天地(常州)自动化股份有限公司,江苏常州213001

出　　处：《煤矿安全》2021年第3期143-147,共5页Safety in Coal Mines

基　　金：天地(常州)自动化股份有限公司研发资助项目(2020GY106)。

摘　　要：为了优化矿用催化甲烷传感器的响应速度,利用计算流体动力学(CFD)对传感器气室的内部流场与甲烷扩散特性进行数值模拟分析。通过改进出气口的设计,利用螺纹配合间隙进行排气,成功加快气室内部甲烷扩散,使传感器的响应时间降低30%以上。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%.

关 键 词：传感器 气室 仿真 响应时间 气体扩散 

分 类 号：TD676[矿业工程—矿山机电]