Study On Optimum Design Of Cylindrical Cone Cyclone Separator

"High efficiency and low resistance" has been the goal of cyclone design workers.At present,the structure design of cyclone separator is mostly empirical and semi-empirical,which has unperfect theoretical models for guidance and poor universality.In this paper,optimizing design is used to improve the structure design of cyclone separator.The research contents and conclusions are as follows:The applicability of the separation model and pressure drop model of the separation cyclone are evaluated.The results show that the prediction values of the Zhao effective calculation model and the Stairmand pressure drop model are in good agreement with the experimental data.In addition,the Gao Cuizhi model is used to calculate the natural cyclone length instead of the Alexander model,the Chen Jianyi’s correlation based on the similarity quasi-correlation is used to calculate the tangential velocity of the wall,which can improve the prediction accuracy of Zhao efficiency calculation model.Based on the Stairmand pressure drop model,a more accurate and applicable pressure drop coefficient formula is obtained by introducing the correction coefficient and the Reynolds number.Combining the optimization theory and the performance calculation method,the optimization model of the cyclone separator is established.With the EXCEL Solver tool to solve the mathematical model,the optimized size is obtained to meet the design requirements.The efficiency and pressure drop of the optimized and traditional Stairmand-efficient cyclone are compared by the theoretical model calculation,CFD numerical simulation and experiment.The results show that the optimized cyclone separator is superior to the Stairmand high efficiency cyclone separator.Therefore,the optimized cyclone separator meet the design requirements for "high efficiency and low resistance" in industrial applications.