化工学报2017，Vol.68Issue(2)：621-629,9.DOI:10.11949/j.issn.0438-1157.20160900
工业环管反应器结构对非均匀流动的影响
Structure effect of industrial loop reactors on non-uniform flow characteristics
摘要
Abstract
Liquid-solid flow and stable operation of a loop reactor were affected by the reactor’s structural parameters. CFD simulation of the industrial polypropylene loop reactor showed clear non-uniform flow phenomenon with segregation at bend and particulate rope in straight tube. Hence, the non-uniform flow under different straight tube height/diameter ratios and straight tube number was quantitatively analyzed by introducing a non-uniformity parameter. Simulated results indicated that non-uniformity of particulate distribution at 2-leg loop reactor’s outlet did not change after the height/diameter ratio exceeded 43. The flow uniformity of particulate distribution at 4-leg loop reactor’s outlet kept increasing with larger height/diameter ratio. When the height/diameter ratio was fixed at 65 and height of the straight tube was kept at 39 m, flow uniformity of particulate distribution at the outlet was improved with more straight tubes. But, the influence of the height/diameter ratio on the outlet’s non-uniformity was more significant than that of straight tube number. The research results could provide guidance for design and optimization of industrial loop reactors.关键词
环管反应器/反应器结构/非均匀流动/计算流体力学/非均匀度/模型/数值模拟Key words
loop reactor/reactor structure/non-uniform flow/computational fluid dynamics/non-uniformity/model/numerical simulation分类
化学化工引用本文复制引用
唐铭,訾灿,杨遥,黄正梁,廖祖维,王靖岱,蒋斌波,阳永荣..工业环管反应器结构对非均匀流动的影响[J].化工学报,2017,68(2):621-629,9.基金项目
国家自然科学基金项目（91434205，21406194）；国家杰出青年科学基金项目（21525627）；浙江省杰出青年科学基金项目（ LR14B060001）；高等学校博士学科点专项科研基金项目（20130101110063）。 （）
