Study On Cyclone Separator Of High Pressure System

Gas-liquid separation technology is very important in chemical engineering unitoperation, it is used to remove harmful substances or recover useful material. Thegas-liquid separation directly affect the chemical operation efficiency and theeconomic efficiency, is a very important link in energy saving and emission reduction,and is an important part of production safety.Under the high-pressure conditions, due to the change of gas-liquid property andthe strength requirements of separator, gas-liquid separation is different toatmospheric conditions, the study of gas-liquid separation under the high-pressureconditions is little.In this paper, Fluent is used to research flow field distribution, trajectory ofdroplet particle, the separation yield and pressure drop in cyclone separator under thehigh pressure. The conclusions are as follows:(1) The separation yield in6.5MPa is lower than in atmospheric. Under the highpressure, the best inlet velocity is30m/s.(2) A, B two kinds of position of the porous plate is added in cyclone separatorresults, performance order is:porous A separator> traditional cyclone separators> porous B separator(3) The separation yield of wire-mesh separator is higher than traditionalseparator.(4) When baffles are added in inlet, the droplets of above5μm diameter can beseparated fully, the pressure drop between inlet and outlet is not greatly increasing,the performance of cyclone separator with baffles is greatly improved.(5) Above three structures are added in the separator. The results show that:under6.5MPa condition, the droplets of above5μm diameter can be separated fully,the separation yield of1-5μm diameter droplets can be improved32.43~49.32%, andthe pressure drop does not increased.The study is a good thinking to industry practice.