不同倾角桨叶对中心龙卷流型搅拌反应釜性能的影响  

Effect of Different Rake Angles on Performance of Central Tornado Flow Stirred Tank Reactor

作　　者：张娜 郝惠娣[1] 周雪冬 ZHANG Na;HAO Hui-di;ZHOU Xue-dong(College of Chemical Engineering,Northwest University,Shaanxi Xi＇an 710069,China)

机构地区：[1]西北大学化工学院,陕西西安710069

出　　处：《广州化工》2018年第17期101-103,共3页GuangZhou Chemical Industry

摘　　要：中心龙卷流型搅拌反应釜是一种新型的、十分高效的搅拌设备。它利用中心龙卷流使流场内多相物质达到充分混合。运用计算流体力学的方法和ANSYS12.0的CFX软件对反应釜内流场特性进行数值模拟,主要通过模拟所得到的固体颗粒体积分布云图、速度矢量图、桨叶所在平面处的湍动能云图,来研究不同桨叶倾斜角、下,反应釜内部的固液两相流场分布、固体颗粒悬浮效果等。结果表明:桨叶倾斜角为90°即为直叶时,搅拌效果最佳。The central tornado flow stirred tank reactor is a new-type and efficient mixing equipment. Multiphase material in this flow field could be fully mixed by central tornado flow. The Computational Fluid Mechanics and ANSYS12. 0 CFX software were applied to research the solid-liquid two-phase flow field distribution and solid particles suspension in the reactor under different rake angles by the simulated cloud maps of solid particle volume distribution,velocity vector and turbulence kinetic energy on the plane of the blades. The results indicated that the mixing result was best when the rake angle was 90°.

关 键 词：中心龙卷流型搅拌反应釜 固液两相 固体颗粒悬浮 数值模拟 

分 类 号：TQ053[化学工程]