Research Of Parametric Design And Structure Performance Relationship Of Curved Hydrocyclones

As a kind of centrifugal separation equipment,hydrocyclone has developed rapidly with the advantages of high economic efficiency,good compactness,high treatment efficiency and simple process,and has a wide range of practical significance and application prospects in chemical,petroleum,food,light industry,environmental protection,water treatment and other industries.Aiming at the unstable flow caused by the discontinuous structure of the cyclone column cone,and the unsatisfactory separation effect of low density difference and high molecular weight liquid,this paper provides a design idea of a new cyclone column cone section type that can directly control the internal profile: the design of the integrated curved cyclone optimizes the separation performance under various working conditions through the design of the control point.The curve calculation is simple and flexible,and the internal profile line can be directly controlled by the curve equation,which can effectively improve the separation efficiency.This experiment mainly determines the separation ability of the cyclone separator to0.8-0.84 specific gravity light dispersion phase,and analyzes the influence of different curve column cone types on the separation performance of the cyclone,including cone section Bezier curve cyclone,cone spline cyclone,integrated Bezier curve cyclone,integrated spline cyclone.Experiments show that the integrated curved cyclone has good separation performance and separation efficiency of up to 80%,which has great research significance.A BP neural network model was constructed to predict the performance of cyclones,and the prediction performance of cyclones with different types of five columns and cones was compared and analyzed,and the sensitivity of different cyclones to operating parameters was studied.Experiments show that the difference in the separation performance of cyclones of different column cone types is more obvious at large flow rates,and the integrated curved cyclone consumes higher energy while high separation efficiency.In order to further strengthen the ability of oil removal,the series combination of curved cyclone is studied,and the whole combination system adopts the integrated Bezier curve cyclone and integrated spline curve cyclone underflow in series,and the experimental results show that the overall pressure drop of the tandem combination is greater than that of a single cyclone,but the pressure drop is not sensitive to the change of shunt ratio.With the increase of flow,the separation efficiency and pressure drop of the tandem combination increase,the total efficiency can reach more than 90%,and the pressure drop can reach up to 0.3Mpa.Different combinations of cyclones can be studied according to different working conditions,and related engineering applications can be carried out later.