流体机械2017，Vol.45Issue(7)：52-57,11,7.DOI:10.3969/j.issn.1005-0329.2017.07.011
入口高宽比对旋风分离器壁面冲蚀的影响
Effect of Inlet Aspect Ratio on the Wall Erosion in the Cyclone Separator
李琴 1邹康 2刘海东 3李泽蓉1
作者信息
- 1. 攀枝花学院,四川攀枝花 617000
- 2. 西南石油大学,四川成都 610500
- 3. 中石化石油工程机械有限公司第四机械厂,湖北荆州 434024
- 折叠
摘要
Abstract
Under different inlet aspect ratio,the velocity field of separator had been researched,particle's trajectory had been tracked in Lagrangian coordinates,and the wall erosion rate was analyzed in comparison,using the CFD numerical simulation method.It was found that the separation of the central region of space and tangential velocity peak velocity fluctuation were proportional to the ratio,and large aspect ratio will exacerbate the intensity of vortex core oscillation,which will increase the erosion wear at the bottom of the cone.The middle size particles in the incident location had a certain influence on the formation of a grey ring,the one which was near the entrance to the below incident will been tracked easily by the hopper,the one which was in the entrance to the upper of the incident will form a grey ring gathered at the top,adding the erosion rate of the top area.In terms of wear and tear,the erosion rate of cylinder parts became smaller from top to down gradually,and the maximum erosion rate increased along with the aspect ratio.Cone wall erosion wear rate increased from the top to down along the axial.Therefore,in order to keep the balance between smaller wall wear and the better process performance,the appropriate ratio should been taken into consideration.关键词
旋风分离器/气-固两相流/冲蚀磨损/高宽比/颗粒运动Key words
cyclone separator/gas and solid two-phase flow/erosion wear/aspect ratio/motion of particles分类
机械制造引用本文复制引用
李琴,邹康,刘海东,李泽蓉..入口高宽比对旋风分离器壁面冲蚀的影响[J].流体机械,2017,45(7):52-57,11,7.
