分流型芯管对导叶式旋风管内颗粒逃逸的控制.pdf

61 1 Vol61 No1 2010 1 CIESC Journal January 2010 许伟伟, 金有海, 王建军 ( ( ) , 257061) : ; ; ; : T Q 0518 : A : 0438 1157 (2010) 01 0055 05 Control of escaped particles by slotted vortex finder in PSC type cyclone tube XU Weiwei, JIN Youhai, WANG Jianjun (S chool of Mechanical and Electr onic E ng ineer ing , China Univ ersity of Petr oleum , D ong y ing 257061, S hand ong , China) Abstract: Experimental and computational fluid dynamics was used in this study to predict the escape particles and evaluate the performance of PSC type cyclone tube with slotted vortex finderT he simulation results showed that the PSC type cyclone tube could remove the particles with a diameter greater than 5 mThe PSC type cyclone tube increased the grade efficiency of particles with a diameter greater than 2 m as compared with the Shell type cyclone tubeShort circuit flow occurred around the vortex finder slots and there was almost no short circuit flow under the vortex finder inletMost small particles escaped from vortex finder slots of the PSC type cyclone tubeT he slotted vortex finder could develop upwards flow near the vortex finder inlet outside wall and control the escape particles under the vortex finder inletThe force analysis of particles near the slotted vortex finder slots showed that gas flow carried the particles with a diameter smaller than 3 m out the separator. Key words: slotted vortex finder; escaped particles; short circuit flow ; cyclone tube