流速对聚丙烯环管反应器内部流场的影响研究  

Effect of Velocity on Flow Field in Polypropylene Loop Reactor

作　　者：王政文 张万尧 董慧敏[1] 余金锭 汤瞿明 WANG Zheng-wen;ZHANG Wan-yao;DONG Hui-min;YU Jin-ding;TANG Zhai-ming(National Drying Technology and Equipment Engineering Technology Research Center of Tianhua Chemical Machinery and Automation Research and Design Institute Co.,Ltd.,Lanzhou 730060,China;Fujian Zhongjing Petrochemical Co.,Ltd.,Fuqing 350309,China;Sinopec Ningbo Zhenhai Ref ining and Chemical Co.,Ltd.,Ningbo 315207,China)

机构地区：[1]天华化工机械及自动化研究设计院有限公司国家干燥技术及装备工程技术研究中心,甘肃兰州730060 [2]福建中景石化有限公司,福建福清350309 [3]中石化宁波镇海炼化有限公司,浙江宁波315207

出　　处：《化工管理》2023年第17期126-134,共9页Chemical Engineering Management

摘　　要：文章通过运用计算流体力学(CFD)软件,对聚丙烯环管反应器在相同管径不同流速下进行流场特性研究,首先进行三维模型的建立以及网格划分,同时建立好数学模型与边界条件,其次对三维模型进行求解计算,通过求解计算可以得到流体在流场中相同管径不同流速下的速度云图、压力云图与湍动能云图。最后通过对模拟计算结果的研究与对比分析,进一步判断出在何种流速下聚丙烯环管反应器的结构设计最为合理,丙烯聚合反应能够正常进行,对丙烯聚合反应更有利。In this paper,computational fluid dynamics(CFD)software is used to study the flow field characteristics of the polypropylene loop reactor under the same diameter and different flow rates.Firstly,the three-dimensional model is established and the grid is divided,and the mathematical model and boundary conditions are established.Secondly,the three-dimensional model is solved and calculated.The velocity nephogram,pressure nephogram and turbulent kinetic energy nephogram of fluid with the same diameter and different velocity in the flow field can be obtained by solving the calculation.Finally,through the study and comparative analysis of the simulation results,it is further determined that the structure design of polypropylene loop reactor is the most reasonable under which flow rate,and the polymerization of propylene can proceed normally,which is more favorable to the polymerization of propylene.

关 键 词：聚丙烯环管反应器 计算流体力学(CFD) 流场特性 

分 类 号：TQ05[化学工程]