气相氧化反应器内错流射流场数值模拟  

Numerical Simulation of the Crossflow Jets Field in Gas Oxidation Reactor

作　　者：吕志敏[1] 张曙明 李春忠[3] 丛德滋[3] 胡英[3] 

机构地区：[1]盐城工学院,江苏盐城224003 [2]东华工程公司,安徽合肥230024 [3]华东理工大学,上海200237

出　　处：《化学工程》2003年第4期49-53,共5页Chemical Engineering(China)

基　　金：国家 95重点科技攻关项目 (96 5 5 4 0 2 );国家自然科学基金资助重点项目 (2 963 60 10)

摘　　要：气相法制备颗粒材料的管式氧化反应器中 ,原料气通过管壁的开孔或环缝喷入反应器内与轴向流动的高温氧气流混合并反应 ,混合质量是决定颗粒产品质量的关键因素。采用k ε湍流模型对气体通过环缝喷入管内轴向气流形成的错流射流场进行了数值模拟 ,模拟结果与实验数据及有关文献进行了比较。结果表明 ,k ε湍流模型能较好地模拟管内错流射流流场的基本特征 ,可以用来预测气相氧化反应器内错流射流场的有关数值。In the tubular gas oxidation reactor for producing particle products ,material gas was injected into the hot oxygen flowing in the reactor through the holes or an annulus on the wall of the reactor. The mixing of the gases was a key factor to control the product quality. The flow field formed when jets were injected through an annulus into a crossflow field in the reactor was mathematically simulated with the k ε turbulent model. The predictions were verified by experimental measuring, which indicated that the flow field was well characterized by the simulation.

关 键 词：气相氧化反应器 内错流射流场 数值模拟 湍流混合 管式氧化反应器 

分 类 号：TQ021[化学工程]