文献类型：期刊文献

中文题名：聚苯硫醚聚合搅拌釜结构优化及流场分析

英文题名：Structure Optimization and Flow Field Analysis of Polyphenylene Sulfide Polymerization Stirring Reactor

作者：许雯婧[1];王璐[1];甄卫军[1];赵玲[1,2]

机构：[1]新疆大学化工学院石油天然气精细化工教育部重点实验室,新疆乌鲁木齐830046;[2]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2020

卷号：36

期号：3

起止页码：203

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

基金：新疆维吾尔自治区重点研发任务项目(2018B02016-1)。

语种：中文

中文关键词：聚苯硫醚;聚合搅拌釜;固液两相流;数值计算

外文关键词：polyphenylene sulfide;polymerization stirring reactor;liquid-solid flow;numerical simulation

摘要：聚苯硫醚(PPS)是一种综合性能优异的特种工程塑料,聚合搅拌釜是其生产的核心装备,本工作应用多重参考系法和混合多相流模型对聚苯硫醚搅拌釜进行了计算流体力学(CFD)数值模拟,考察了搅拌桨构型对液固两相流动的影响,包括桨型组合及桨间距。为验证数值计算结果,进行了相关冷模实验,数值计算结果与实验结果吻合较好。结果表明,采取三层下压式四折叶涡轮桨和锚框式桨叶的优化组合,其协同作用可以满足高效的主体循环流动和相对均匀的固体悬浮要求,优选的桨叶组合对聚苯硫醚间歇聚合反应过程中的黏度、固含量和固体颗粒大小的变化具有很好的适应性。
Polyphenylene sulfide(PPS)is one of special engineering plastics with excellent comprehensive performance,which core equipment is polymerization stirring reactor.In the present work,the effect of impeller configurations including impeller combinations and distance between impellers on liquid-solid flow had been simulated by computational fluid dynamics using multiple reference frame method and mixture multiphase flow model.In order to validate the numerical results,flow experiments had been performed.The numerical results agreed well with the flow test results,which could ensure the reliability and accuracy of the numerical results.The results indicated that adopting three-layer down-pumping pitched blade turbines with anchor impeller can achieve synergic effect and satisfy efficient bulk circulation in the polymerization reactor and relatively uniform distribution of the polymer particles.Meanwhile,this optimized impeller combination showed good adaption with varying liquid viscosity,particle size and particle content during PPS polymerization process.