旋流分离过程中油滴聚集破碎的动力学分析  

Kinetic Analysis on Oil Particle Coalescence and Fragmentation in the Process of Hydrocyclone Separation

作　　者：张义科[1] 刘宇 王振波[1] 陈阿强[1] 

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《过滤与分离》2016年第1期1-5,23,共6页Journal of Filtration & Separation

基　　金：中央高校基本科研业务费专项资金资助项目(编号:14CX06097A)

摘　　要：对旋流器内油滴粒子的聚集与破碎机理,以及旋流场中影响油滴粒子聚集破碎的作用力进行分析。指出油滴粒子的聚集的力大于两相界面张力时出现界面发生破裂而聚集。雷诺剪切应力作用大于粘性剪切应力,是油滴粒子发生破碎的主要作用力,同时分析了油滴粒子破碎时的临界Weber数,指出影响油滴粒子聚集破碎的部分影响因素。The mechanism of oil particles coalescence and fragmentation inside the cyclone was analyzed in this paper, as well as the forces affecting the effect. It could be found that the oil particles would aggregate due to the interface rupture when the coalescing force was greater than the interfacial tension. Reynolds shear stress was the main force that led to the breakup of oil particles, and played a more important role than the viscous shear stress. Meanwhile, some factors that influenced the coalescence and fragmentation of the oil particles were pointed out by analyzing the critical Weber number of breakage.

关 键 词：旋流 聚集 破碎 雷诺剪切应力 Weber数 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]