流体机械Issue(12)：28-32,5.DOI:10.3969/j.issn.1005-0329.2015.12.006
旋风分离器排气管缩口半径优化的数值模拟
Numerical Simulation to the Reducing Radius Optimization of Cyclone Separator Exhaust Pipe
摘要
Abstract
The RSMmodel and DPMmodel are used to the numerical simulation of different exhaust pipe bottom opening radius reducing type cyclone separator for the internal flow field.The average of all results show that:As the radius decreases,the ex-haust pipe at the entrance area decreases,it makes axial velocity and tangential velocity increased.The increasing speed can make the center of the particles get larger centrifugal force,therefore the number of particles trapped increase.When the radius and the exhaust pipe radius ratio is 1 ~0.9,the separation efficiency and the pressure drop are improved a little.When the ratio is 0.8 ~0.5,the separation efficiency is improved a lot,and energy loss is larger.In the process of gradually decreasing radius, the separation efficiency and pressure drop increase.Comprehensive consideration,when r/R is about 0.6 ~0.5,the separation efficiency is about 97% ~98% and the pressure drop is also reasonable.关键词
旋风分离器/数值模拟/排气管/缩口/分离效率Key words
cyclone separator/numerical simulation/exhaust pipe/reducing radius/separation efficiency分类
机械制造引用本文复制引用
郑建祥,周天鹤..旋风分离器排气管缩口半径优化的数值模拟[J].流体机械,2015,(12):28-32,5.
