新型气液旋流分离器的模拟研究  

A new gas-liquid cyclone's simulation

作　　者：刘振东[1] 陈文武[1] 王振兴[2] 毕荣山[2] 李玉刚[2] 郑世清[2] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023 [2]青岛科技大学化工计算机研究所,山东青岛266042

出　　处：《计算机与应用化学》2013年第1期13-17,共5页Computers and Applied Chemistry

基　　金：中国科学院化学激光重点实验室开放基金(KLCL200901);山东省自然科学青年基金(ZR2009BL015)

摘　　要：为了分离气液喷射反应器的产物,开发了一种新型气液旋流分离器。分别采用Muschelknautz模型、改进的Muschelknautz模型和计算流体力学(CFD)离散相模型对新型气液旋流分离器进行了模拟计算,对新型气液旋流分离器的压力场、分离效率、液滴运行轨迹进行了考察。结果表明:相对于传统Muschelknautz模型,改进的Muschelknautz模型与CFD的模拟结果更为接近,能更加准确地对旋流分离器的分离性能和压降进行预测:在设计条件下,液滴直径越小,颗粒在旋流分离器中的运动轨迹就越紊乱,>3μm的液滴颗粒的分离效率超过80%:颗粒的入口位置会影响颗粒的运动轨迹。In order to separate the products of gas-liquid ejector, our team had developed a new gas-liquid cyclone. In this paper, the classical Mnsehelknautz cyclone model method, the improved method and CFD code＇s DPM were used for the new gas-liquid cyclone＇s calculation and simulation. The cyclone＇s pressure field, separation efficiency and particle trajectories were studied, the investigations show that： compared with classical Muschelnantz model, the improved Mnschelknautz model is more close to CFD simulation results, the improved methods can more accurately predict the cyclone＇s separation performance and pressure drop; in the design conditions, the smaller the droplets are, the more complex particle trajectories become, and larger than 3/am droplet particles＇ separation efficiency is over 80% in the new cyclone, and inlet position will affect the particle trajectories.

关 键 词：气液 旋流分离器 Muschelknautz模型 CFD 离散相模型 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]