Optimization on Structural Parameters of Guide Vanes Built in Cyclone Separators
In order to study the interaction among structural parameters of the guide vanes built in cyclone separator,based on CFD numerical simulation method and BBD test design,a second-order polynomial basis func-tion was used to build a mathematical model for the relationships among the axial position,length and deflection angle of the blade,the separation efficiency and the pressure drop of the Stairmand cyclone separator.The fitting results show that the determination coefficients of the response target are all above 0.99,indicating a good effect of correlation and regression model.Moreover,after having processed the data using Design Expert software,the best recommendation point was selected to conduct optimization on the structure of the separator.The comparison be-tween the optimized model and the original structure reveals that the pressure drop of the optimized model slightly increases.When the particle diameter is within the range of 1-20 μm,there is a significant change in the separa-tion efficiency of the separator before and after optimization,especially within the range of 1-15 μm,the separa-tion efficiency is 6.8%-31.0% before optimization,and reaches 17.0%-54.0% after optimization,an improve-ment of about 20 percentage points.When the particle diameter is within the range of 15-40 μm,there is no sig-nificant change in separation efficiency before and after optimization,especially within the range of 20-40 μm,the separation efficiency is 71.0%-98.0% before optimization,and reaches 77%-99% after optimization,an im-provement of about 10 percentage points.The performance of the optimized model conforms to the design goal of"high efficiency and low resistance".The study conclusions provide design guidance for the improvement of the guide vanes built in the cyclone separator.
cyclone separatorFluentstructural optimizationresponse surface methodBBD test designseparation efficiency
万方数据
维普
