数值研究液-液水力旋流器内颗粒浓度分布特性  

Numerical Simulation of Particle Concentration Distribution in Liquid-Liquid Hydrocyclones

作　　者：韩婕[1] 刘阿龙[1] 彭东辉[1] 韩坤[1] 

机构地区：[1]上海化工研究院化学工程及装备研究所

出　　处：《化工机械》2011年第6期725-729,共5页Chemical Engineering & Machinery

摘　　要：根据计算流体力学(CFD)的原理和方法,应用Fluent软件对液-液水力旋流器内部颗粒浓度分布进行数值模拟,得到了不同进口流量和不同进料浓度下旋流器内各个截面上浓度分布情况。结果表明:旋流器内各截面上浓度变化曲线呈现抛物线型;进口流量越大,在管壁处浓度值越小,油滴不断向管芯聚集;进料浓度越大,在旋流器的大部分区域中,浓度分布会增大,分离所需时间变长。Basing on CFD（computational fluid dynamics） principle and method,the inner particle concentration distribution over different sections of liquid-liquid hydrocyclone was simulated with Fluent software.The concentration distribution curves at all vertical levels like the parabola from axis to cyclone wall;when the inlet flow becomes large,the low concentration in tube wall and the oil droplets gathering to tube core can be found.The simulation result shows that an increase in feed concentrations can make liquid staying time become longer in hydrocyclone.

关 键 词：液-液水力旋流器 颗粒随机轨道模型 浓度分布 数值模拟 

分 类 号：TQ051.84[化学工程]