水力旋流器颗粒沉降速度与分离粒度研究  

STUDY ON THE PARTICLE SLIP VELOCITY AND SEPARATING DIAMETER

作　　者：梁政[1] 任连城[1] 吴世辉[2] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]河南油田机械制造总厂

出　　处：《西南石油大学学报（自然科学版）》2007年第3期173-176,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：四川省教育厅自然科学重点实验室专项基金(2006ZD043);四川省省部共建教育部重点实验室项目(2006STS02)。

摘　　要：在试验和流场数值模拟的基础上,对水力旋流器内部固体颗粒的运动行为进行了具体的研究。通过对固体颗粒的运动和受力分析发现固体颗粒在沉降过程中径向合力几乎处处为零,不存在所谓的径向合力为零的一个平衡轨迹面,但存在着一个径向沉降速度为零的轨迹面,这一轨迹面就是平衡轨迹面法所要寻找的;首次推导出了该轨迹面半径与固体颗粒直径、水力旋流器自身几何参数以及操作参数之间的定量表达式。In this paper, the dynamic forces acting on the particles and the radial movement of particles in hydrcyclone are studied on the basis of experiment and CFD simulation. The study shows that in the radial direction the dynamic forces acting on the particle balance on the particle itself; there is not a so-called trajectory of the particle in which the composition of forces acting on the particles is zero, but there is a trajectory of the particle in which the radial slip velocity of particle is zero, the trajectory of the particle is signality to the separating particle diameter of the hydrcyclone. The formula of the trajectory of the particle in which the radial slip velocity of particle is zero is offered.

关 键 词：水力旋流器 固体颗粒 沉降速度 分离粒度 公式 

分 类 号：TE926[石油与天然气工程—石油机械设备]