方形旋风分离器内颗粒分布特性的实验研究  

Experimental Study on the Particle Distribution in a Square Cyclone Separator

作　　者：苏亚欣[1] 骆仲泱 岑可法[2] 

机构地区：[1]东华大学环境科学与工程学院,上海200051 [2]浙江大学热能工程研究所,杭州310027

出　　处：《燃烧科学与技术》2002年第3期199-201,共3页Journal of Combustion Science and Technology

基　　金：清华大学煤的清洁燃烧技术国家重点实验室开放课题基金资助项目 (0 6980 6)

摘　　要：应用三维颗粒动态分析仪 (3D- PDA)对方形旋风分离器内的两相流场进行测试 ,得到了颗粒密度和粒径的分布 ,在 1/2进口高度的截面上 ,正对着分离器进口的右前角处颗粒的粒径明显大于其他地方的颗粒。在分离器中部的截面上 ,颗粒粒径分布差别不大 ,但是在分离器的左前角附近颗粒密度稍微高一些 ,而在右前角附近的颗粒密度较低。A 3 dimensional particle dynamic analyzer (3D-PDA) was employed to measure the gas-solid suspension flow in a square cyclone separator with both downward exhaust exit and solid discharge.The particle concentration and diameter distribution at 2 sections were presented in this paper.At the upper part,e.g.,at the section that is the half of the inlet height from the separator top,the particle diameter at the front-right corner facing the inlet was found obviously larger than those at any other position.The particle diameter showed little difference at the section at the mid-height of the separator,while the particle concentration showed a little higher at the left-front corner and a little lower at the right-front corner.The particle concentration distribution was opposite to particle fluctuating velocity.

关 键 词：方形旋风分离器 颗粒分布 3D-PDA测试 

分 类 号：TK224[动力工程及工程热物理—动力机械及工程]