基于有机硅单体合成反应器的旋风分离器性能优化的模拟研究  

A Numerical Study of Performance Optimization Based on Organosilicon Monomer Synthesis in the Cyclone Reactor

作　　者：谭卫川 吕国强[1] 杜树忠 杜汕霖 马文会[1] 顾光凯 付博强 TAN Weichuan;LV Guoqiang;DU Shuzhong;DU Shanlin;MA Wenhui;GU Guangkai;FU Boqiang(National Engineering Laboratory for Vacuum Metallurgy,Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Energy Investment Silicon Material Technology Development Co.,Ltd.,Kunming 650093,China)

机构地区：[1]昆明理工大学冶金与能源工程学院真空冶金国家工程实验室,云南昆明650093 [2]云南能投硅材料科技发展有限公司,云南昆明650093

出　　处：《昆明理工大学学报（自然科学版）》2022年第6期61-67,86,共8页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：云南省科技厅科技规划项目(202002AB080002)。

摘　　要：为了保证有机硅流化床反应器的持续运行,对分离器的旋流特征进行了研究.基于雷诺应力湍流模型(Reynolds Stress Turbulence Model, RSM),通过数值模拟的方式分别研究了不同入口角度下旋风分离器内的旋流变化.此外,根据颗粒碰撞处理方式的不同,系统研究了离散相模型(Discrete Phase Model, DPM)、稠密离散相模型(Dense Discrete Phase Model, DDPM)和离散元方法(Discrete Element Method, DEM)的差异性.结果表明:入口夹角的变化对分离器性能有很大影响.采用DEM模型可以更好地捕捉内部的旋流特征;颗粒-颗粒和颗粒-壁面相互作用力远大于颗粒-流体力的大小;强颗粒-壁面碰撞区主要分布在入口对面的壁面和锥壁上.这对有机硅合成反应器的旋流器设计提供了可靠的理论基础.In order to ensure the continuous start-up of the silicone fluidized bed reactor, the cyclone characteristics of the separator are investigated.Based on the Reynolds Stress Turbulence Model(RSM).The cyclone flow changes in the cyclone separator under different inlet angles are investigated by means of numerical simulation.In addition, the differences between Discrete Phase Model(DPM),Dense Discrete Phase Model(DDPM) and Discrete Element Method(DEM) models are systematically explored according to the different ways of handling particle collisions.The results show that the change of the inlet angle has a great influence on the performance of the separator.According to the DEM model, there are more obvious internal and external swirling phenomena in the cyclone, which can better capture the internal swirling characteristics.The magnitude of the particle-particle and particle-wall interaction forces are much larger than that of the particle-fluid force, and the particle-wall strong collision area is mainly distributed in the cyclone cone wall surface.This research provides a reliable theoretical basis for the design of cyclones for organosilicon synthesis reactors.

关 键 词：两相流 旋风分离器 模型优化 计算流体力学 离散相模型 

分 类 号：TQ264.1[化学工程—有机化工]