Abstract: The gas-liquid separation under high pressure is studied by a large-scale industrial cyclone separator and numerical simulation method is used to analyze the flow field distribution within cyclone separator under high pressure.The structure of cyclone separator is modified through arranging perforated plates at different positions in the cyclone separator and installing a baffle at the inlet position.The separation performances before and after arranging perforated plate are compared.The simulation results show that the symmetrical inlets facilitate the symmetrical distribution of the flow field.Perforated plates and baffle both can improve the separation efficiency in the separator.After a comprehensive improvement,the cyclone separator can separate completely the droplets with particle size larger than 5 μm without increasing pressure loss of the separator,and the separation efficiency of the droplets with particle size less than 5 μm increases 24.60%.
肖北辰, 张鹏飞, 刘兆利, 侯建龙. 高压下旋风分离器进行气液分离的模拟与优化[J]. 现代化工, 2018, 38(11): 226-229.
XIAO Bei-chen, ZHANG Peng-fei, LIU Zhao-li, HOU Jian-long. Simulation and optimization for gas-liquid separation by cyclone separator under high pressure. Modern Chemical Industry, 2018, 38(11): 226-229.
[1] Azadi M,Azadi M,Mohebbi A.A CFD study of the effect of cyclone size on its performance parameters[J].Journal of Hazardous Materials,2010,182(1/2/3):835-841. [2] Demir S.A practical model for estimating pressure drop in cyclone separators:An experimental study[J].Powder Technology,2014,268:329-388. [3] Karagoz I,Avci A.Modelling of the pressure drop in tangential inlet cyclone separators[J].Aerosol Science and Technology,2005,39(9):857-865. [4] Kepa A.The efficiency improvement of a large-diameter cyclone-The CFD calculations[J].Separation and Purification Technology,2013,118(43):105-111. [5] Su Y X,Zheng A Q,Zhao B T.Numerical simulation of effect of inlet configuration on square cyclone separator performance[J].Powder Technology,2011,210(3):293-303. [6] 于洲,马春元.动态旋风分离装置分离效率的理论与实验研究[J].现代化工,2014,34(6):122-125. [7] 潘传九,靳兆文,冯秀.旋风分离器的螺旋导流和防返混[J].化工进展,2012,31(6):1215-1219. [8] 陈海焱.涡轮除尘技术[J].现代化工,2003,23(1):49-51. [9] Lim K S,Kwon S B,Lee K W.Characteristics of the collection efficiency for a double inlet cyclone with clean air[J].Journal of Aerosol Science,2003,34(8):1085-1095. [10] 葛坡,袁惠新,付双成.对称多入口型旋风分离器的数值模拟[J].化工进展,2012,31(2):296-299. [11] Butter H,Ebert F.Particle collection in small laboratory cyclones as basis for the design of large-scale cyclones[J].Chemical Engineering and Technology,1989,12:295-301. [12] 张学旭.旋风分离器的模型试验方法[J].中国粉体技术,2000,6(3):12-14. [13] Fraser S M,Abdel-Razek A M,Abdullah M Z.Computational and experimental investigations in a cyclone dust separator[J].Journal of Process Mechanical Engineering,1997,211(4):247-256.