叶片参数对导叶式旋风分离管性能的影响  

Effects of blade′s parameters on performance for guide vane cyclone tube

作　　者：韩传军[1] 陈飞[1] 杨雪[1] 张杰[1] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500

出　　处：《机械设计》2015年第8期72-77,共6页Journal of Machine Design

基　　金：国家自然科学基金资助项目(51474180);四川省科技创新苗子工程资助项目(2014-025);西南石油大学机电工程学院创新基金资助项目(CX2014SY48)

摘　　要：为研究叶片结构参数对导叶式旋风分离管流场分布及分离效率的影响,基于纳维-斯托克斯方程,考虑颗粒与壁面碰撞,采用雷诺应力模型与有限体积法,对旋风分离管流场进行了数值模拟。研究了叶片高度、包弧长与出口角度对旋风分离管流场分布、压降及分离性能的影响规律。结果表明,导叶式旋风分离管外旋流压值较高,内旋流压值较低,呈＂V＂型分布,速度沿径向方向对称,呈驼峰型分布;叶片包弧长和出口角度对旋风分离管流场压力、速度、压降及分离效率影响较大,而叶片高度的影响则相对较小。综合考虑,叶片包弧长应在32-40 mm,叶片出口角度在20°-30°,叶片高度在43.5-47 mm范围内选取。In order to study the effect of blade＇s structure parameter on the distribution of flow field and separation efficiency in the vane cyclone tube,based on N-S Equation, considering the collision force between the particles and the wall,and using Reynolds Stress Model and Finite Volume Method, the flow field of cyclone separation tube was numerically simulated. The effects of the blade＇s height ,arc length and outlet angle on the distribution of flow field ,the pressure drop and the separation rate were studied. The results show that the pressure value is higher in outer vortex than in the internal for the cyclone separation tube,the curve appears as a V-shape. The speed along the radial direction is symmetrical and like a hump. The blade＇s arc length and outlet angle have obvious effects on the pressure ,velocity ,pressure drop and the separation efficiency in the flow field of cyclone separation tube, but the blade＇s height has less. The blade＇s arc length should range from 32 mm to 40 mm,the blade＇s outlet angle should range from 20° to 30° and the blade＇s height should range from 43.5 mm to 47 mm.

关 键 词：旋风分离管 分离效率 叶片 叶片高度 包弧长 出口角度 

分 类 号：TE645[石油与天然气工程—油气加工工程]