Numerical Simulation And Development On Hydrocyclone Separator Oriented To High Gravity Purifier Applied To Hydraulic Oil Purification

In order to improve the active defense level of contamination control in fluid powersystem, a novel hydraulic oil purifier proposed in this research is considered to becapable of removing the solid particle contaminant and moisture simultaneously,which consists of two parts: hydrocyclone separator and rotating packed bed (i.e.Higee). This paper mainly aims at the design, simulation and experiment on thehydrocyclone separator.A hydrocyclone separator used to be applied to chemical industry is tried to bedesigned according to experiential parameters in a typical fluid power system for thefirst time. And then the mathematical model of the hydrocyclone separator has beenestablished. The distribution of the hydraulic oil and solid particles in swirling flowfield inside the hydrocyclone separator has been simulated with the help ofcomputational fluid dynamics (CFD) software Fluent. Based on the swirling flowfield established by the initially designed hydrocyclone separator, the effects of thecone angle, cylindrical length and the length of vortex finder on the separationperformance of the hydrocyclone separator have been subsequently investigated to getaccess to the optimal structure. Accordingly, a typical fluid power system has beenassembled to identify whether the experiment results match the simulation process.The final research results indicate the hydrocyclone separator with25°cone angle,60mm cylindrical length and30mm length of vortex finder has been considered asthe most satisfied configuration for it reflects a relatively pleasant solid-liquidseparation performance considered to be beneficial to controlling the fluid powersystem contamination level. What’s more, the experiment research reflects the biggerflow rate a system provides, the better purification results will be obtained. Thus, itcan be safely say the hydrocyclone separator is more appropriate applying to fluidpower system with bigger flow rate. The research outcome will lay a foundation forthe development of the new hydraulic oil purifier proposed in this research.