| The number of conventional hydrocyclone's inlet was compared. The influence of separation characteristics which caused by the size of inlet's cross-sectional area was analyzed. The influence of separation characteristics which caused by the tapered degree of inlet flow path was described by simulation analysis.Based on large amounts of inlet forms, a new type of hydrocyclone's inlet form (inlet flow path with rotation angle) was proposed. The method of combining the theoretical analysis, numerical simulation, and experimental research was adopted. The separation property and flow field characteristics of oil were studied. First, the model of the hydrocyclone was modeled by using theoretical analysis method. Second, the dimensional parameters of the hydrocyclone were optimized by using numerical simulation method. The optimum operation parameters of the hydrocyclone were determined by using experimental research finally, and the experimental study further proved the correctness of model choice.The model of the hydrocyclone maked by Gambit software. The method of computation fluid dynamics (CFD) is adopted by using the Fluent software. Numerical simulation for the model of the hydrocyclone was first carried out. The flow field characteristics of the velocity distribution law, the density distribution law and pressure distribution law etc. were analyzed. Best angle was determined by the comparative simulation of hydrocyclone models with different angles.The flow field characteristics of the velocity distribution law, the density distribution law and pressure distribution law etc. were revealed by the experimental study. The theoretical basis and references for further research of the optimization of hydrocyclone's inlet structure form and structural optimization design of the hydrocyclone are provided. |
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