固旋阀塔板液相等停留时间分布的实验研究  

Liquid residence time distribution on fixed rotary valve tray

作　　者：甘祖涛 齐亮[1] 姚克俭[1] GAN Zu-tao;QI Liang;YAO Ke-jian(College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310032,Zhejiang Province,China)

机构地区：[1]浙江工业大学化学工程学院,浙江杭州310032

出　　处：《化学工程》2018年第7期22-26,30,共6页Chemical Engineering(China)

摘　　要：以空气-水为实验物系,采用温度阵列-热水示踪技术测试了固旋阀塔板上液相等停留时间分布,并研究了溢流强度和气相动能因子等因素对液相等停留时间分布的影响。实验结果表明:溢流强度和气相动能因子减小,液相停留时间会有所增加。低溢流强度下固旋阀在塔板上形成的旋转流场对塔板上液相总体流动影响较为明显,塔板上液相分布更加均匀。较大气相动能因子操作下,液相湍动能较大使液相在塔板上分布更加均匀。利用已有的模型对实验数据进行关联获得塔板上的流动参数。Liquid residence time distribution across fixed rotary valve tray was observed on air-water system by using temperature array hot water tracer technique. The effects of liquid rate, kinetic energy factor on liquid residence time distribution were estimated and discussed. The experiment results indicate that the liquid residence time increases with the decrease of liquid rate and kinetic energy factor. The liquid distributions on the tray become more uniform due to the turbulence causing by the rotary flow field with lower liquid rate. When higher kinetic energy factor are applied, the turbulent kinetic energy of the liquid gets more significant to allow the liquid to be more evenly distributed on the tray. The flow parameters on the tray are estimated by correlating the experimental data with known models as well.

关 键 词：温度阵列-热水示踪技术 固旋阀塔板 等停留时间分布 液相流动 旋转流场 

分 类 号：TQ053.5[化学工程]