Effect of inlet volute wrap angle on the flow field and performance of double inlet gas cyclones  

作　　者：Zetao Wang Guogang Sun Zhengyuan Song Shiwei Yuan Zhen Qian 

机构地区：[1]College of Mechanical and Transportation Engineering,China University of Petroleum,Beijing,102249,China [2]State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing,102249,China

出　　处：《Particuology》2023年第6期29-36,共8页颗粒学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(grant No.21978322,21276274).

摘　　要：In response to the divergent understanding of double inlet cyclone performance in the literature,the effect of inlet volute wrap angle on the performance and flow field of double inlet cyclone separator was studied by Computational Fluid Dynamic(CFD)method.The results showed that the inlet volute wrap angle can affect the comparison results of the single and double inlet gas cyclones with the same total inlet cross-sectional area and velocity.0°and 90°volute double inlet improved the efficiency mainly by separating particles below 10μm,while 180°volute double inlet had no separation advantage for any particles,so the symmetrical double inlet does not always improve the efficiency,and the appropriate inlet volute wrap angle should be selected according to the actual situation,otherwise,the expected performance requirements of the symmetrical double inlet cyclone cannot be achieved.Compared with the flow field,it is found that the inlet volute wrap angle changed the tangential velocity of the sym-metrical double inlet cyclone separator,thus changing the performance.

关 键 词：Cyclone separator Inlet volutewrapangle EFFICIENCY Pressure drop Double inlet 

分 类 号：V233[航空宇航科学与技术—航空宇航推进理论与工程]