下层桨叶结构对搅拌反应器内部流场的影响  

Influence of lower impeller structure on flow field in stirred reactor

作　　者：加万里[1] 王勇[2] 高勇[3] JIA Wanli;WANG Yong;GAO Yong(Xi′an Aerospace Propulsion Test Technique Institute,Xi′an 710100,China;Shaanxi Yanchang Petroleum(Group)Co.Ltd.,Xi′an 710075,China;School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China)

机构地区：[1]西安航天动力试验技术研究所,陕西西安710100 [2]陕西延长石油(集团)有限责任公司,陕西西安710075 [3]榆林学院化学与化工学院,陕西榆林719000

出　　处：《化工科技》2024年第2期12-17,共6页Science & Technology in Chemical Industry

基　　金：国家自然科学基金项目(22268047);陕西省教育厅重点科学研究计划项目(22JS048);榆林市科技局产学研项目(CXY-2022-77)。

摘　　要：搅拌反应器可以对物料进行均匀的搅拌及混合,极大提高了工艺物料的处理效率。利用CFD技术对搅拌反应器内的流场特性进行数值分析,研究下层桨叶结构对流体流速的影响。研究结果表明,桨叶数目增加时搅拌效率增大,搅拌核心区域的流速较大,旋转域内部的流速增大;桨叶角度增加时桨叶搅拌区域的流速增大,但在旋转域的下部流速反而减小。The process materials in the stirred reactor can be stirred and mixed uniformly,which greatly improves the processing efficiency of the process materials.The internal flow field characteristics of the stirred reactor were numerically analyzed by CFD,and the influence of the lower impeller structure on the flow velocity was studied.The research results show that when the impeller number increases,the stirring efficiency will increase,the flow velocity in the core stirring region will be larger,and the flow velocity in the rotating domain will increase.When the blade angle increases,the flow velocity in the impeller stirring area will increase,but the flow velocity will decrease in the lower part of the rotating area.

关 键 词：搅拌反应器 流场特性 数值分析 流速 

分 类 号：TQ027.2[化学工程]