基于伯努利效应在煤尘检测通道的实现研究

Research on the Realization of Coal Dust Detection Channel Based on Bernoulli Effect

依据流体力学中的伯努利效应,优化现有装置,从而设计了具有效应段的煤尘浓度检测通道装置。采用CFD软件,在Gambit2.4中建立改进装置模型,在Fluent6.3设定计算求解参数,通过对仿真结果的云图分析、数值分析以及不同管道的粒子参数对比分析,得出了伯努利效应在改进装置中的有效性。经过与项目组之前研究的文丘里效应管进行速度对比以及归一化处理,其平均速度提高了9.2%。对于后续设计煤尘浓度检测结构具有一定的参考意义。

According to Bernoulli effect in hydrodynamics, the existing device is optimized, and a dust concentration detection channel device with effect section is designed. Using CFD software, an improved device model is established in Gambit 2.4. The parameters of calculation and solution are set in Fluent 6.3. The effectiveness of the Bernoulli effect in the improved device is obtained through the cloud image analysis, numerical analysis and the comparison of particle parameters of different pipes. The average velocity of Venturi effect tube was increased by 9.2 times after comparing and normalizing with the Venturi effect tube studied by the project team. It has certain reference significance for the follow-up design of coal dust concentration detection structure.