Study on the Influence of Inlet Flow Rate on Separation Performance of Gas-Lift Co-Directional Outflow Hydrocyclone
In order to improve the separation efficiency of hydrocyclone,an innovative design of gas-lift co-directional outflow hy-drocyclone structure is proposed,The oil core of the hydrocyclone axis is lifted to the overflow port by gas injection,Accelerated the movement of the oil core towards the overflow port,improved the separation performance of the hydrocyclone.Based on Reynolds Stress Model(RSM)and Mixture Model,simulated and calculated the effects of inlet flow rate on the separation performance of gas-lift co-directional outflow hydrocyclone.Analyzed the effects of inlet flow rate on the gas core morphology,velocity field dis-tribution and separation performance of the hydrocyclone.The simulation results show that the inlet flow rate is distributed in the range of(3.6～8.4)m3/h,with the increase of inlet flow rate,the pressure at the gas injection port gradually increases,the axial and radial velocity of each phase medium in the mixed liquid increases significantly,the oil phase volume fraction at the axial center of the hydrocyclone increases significantly,and the separation efficiency of the hydrocyclone increases from 64%to77.9%.
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