Structure Optimization Of Cyclone Based On Response Surface Method

Cyclone separator is a dry gas-solid separation device that uses centrifugal force to separate dust from a rotating gas stream and capture it.The device has the advantages of simple structure,low price,convenient operation,low energy consumption,high temperature and high pressure resistance,High efficiency in collecting particulate dust above 5-10?m,Therefore,it is widely used in the dust removal of chemical,petroleum,mining,metallurgical and other industries.However,with the development of the industrial level and the improvement of environmental protection requirements,higher requirements are placed on the efficiency and energy consumption of the cyclone separator.The results obtained by numerical simulation of the conventional size cyclone separator by CFD(Computational Fluid Dynamics)are compared with the experimental data.The experimental results are very close to the simulation results,This shows that the research method of CFD has higher feasibility in the research of cyclone separator.At the same time,the single-factor numerical simulation analysis of the exhaust pipe insertion depth,inlet area and exhaust pipe diameter of the cyclone separator is carried out.Changing them all will have different effects on the pressure and speed in the separator.Moreover,there is a nonlinear relationship between the single factor and the performance of the cyclone separator,indicating that one or more structures have higher separation efficiency while having a lower pressure drop.According to this relationship,the multi-factor analysis of the cyclone separator is carried out by the response surface method,and the quadratic polynomial response surface regression equation of the separation efficiency and pressure drop of the objective function and the diameter of the exhaust port,the inlet height and the insertion depth of the exhaust pipe are established.Through optimal structure modeling,meshing,and flow field analysis for RSM(Response surface method)prediction.It is concluded that the optimal structure predicted by RSM is compared with the conventional cyclone separator:the pressure drop is reduced by 0.015 kPa,and the separation efficiency is increased by 4.66%.It shows that the response surface method has certain feasibility and practical application value in the structural optimization of the cyclone separator.