Spatial distribution characteristics of liquid film thickness in gas-liquid cylindrical cyclone

WANG Ya'an; CHEN Jianyi; YE Song; SONG Zhanrong; HAN Mingshan; YANG Yang

doi:10.11949/0438-1157.20200139

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Spatial distribution characteristics of liquid film thickness in gas-liquid cylindrical cyclone

Separation engineering | 更新时间：2026-07-24

- Spatial distribution characteristics of liquid film thickness in gas-liquid cylindrical cyclone
- CIESC Journal Vol. 71, Issue 11, Pages: 5216-5225(2020)
- 作者机构：
  
  1.中国石油大学重质油国家重点实验室，北京 102249
  2.过程流体过滤与分离技术北京市重点实验室，北京 102249
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200139
  CLC： TQ 058.1
- Received：14 February 2020，
  
  Revised：2020-07-10，
  
  Online First：03 November 2020，
  
  Published：05 November 2020
- 稿件说明：
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王亚安, 陈建义, 叶松, 宋占荣, 韩明珊, 杨洋. 管柱式气液旋流分离器液膜厚度的空间分布特性[J]. 化工学报, 2020, 71(11): 5216-5225

WANG Ya’an, CHEN Jianyi, YE Song, SONG Zhanrong, HAN Mingshan, YANG Yang. Spatial distribution characteristics of liquid film thickness in gas-liquid cylindrical cyclone[J]. CIESC Journal, 2020, 71(11): 5216-5225
王亚安, 陈建义, 叶松, 宋占荣, 韩明珊, 杨洋. 管柱式气液旋流分离器液膜厚度的空间分布特性[J]. 化工学报, 2020, 71(11): 5216-5225 DOI： 10.11949/0438-1157.20200139.

WANG Ya’an, CHEN Jianyi, YE Song, SONG Zhanrong, HAN Mingshan, YANG Yang. Spatial distribution characteristics of liquid film thickness in gas-liquid cylindrical cyclone[J]. CIESC Journal, 2020, 71(11): 5216-5225 DOI： 10.11949/0438-1157.20200139.

摘要

管柱式气液旋流分离器（GLCC）是一种耦合离心力与重力的分离设备，其上部筒体内旋流液膜的分布特征显著影响其分离性能。液膜厚度作为该旋流液膜的关键参数，掌握其分布规律可为理解液膜的流动机制奠定基础。利用纽扣式电导传感器测量了GLCC上部筒体内的液膜厚度，通过改变入口气液相流量、入口喷嘴尺寸，系统地研究了其空间分布特性。结果表明，操作参数一定时，液膜厚度沿轴向向上趋于减小；在某一轴向位置，液膜厚度随入口气量的增大呈现“S”形分布，随入口液量的增大而近线性增大；此外，入口喷嘴尺寸对液膜厚度的分布影响显著：在不同的轴向位置，不同尺寸喷嘴对应的液膜厚度间的大小存在差异。液膜厚度随气液量的变化规律证明液膜逃逸是GLCC液相分离效率降低的直接原因，而喷嘴尺寸对液膜厚度沿轴向分布的影响则反映了GLCC旋流效应与重力效应间的相互作用。

Abstract

Gas-liquid cylindrical cyclone (GLCC) is a separation device coupling centrifugal force and gravity. The distribution characteristics of the swirling liquid film along the upper cylinder wall of GLCC significantly affect its separation performance. The thickness is the key parameter of the swirling liquid film. Mastering its distribution law can lay the foundation for better understanding the flow mechanism of the liquid film. In this paper

the liquid film thickness in the upper cylinder of GLCC was measured by using button electrodes. And its spatial distribution characteristics were systematically studied by changing the gas-liquid flow-rate and the size of the inlet nozzle. The results show that the liquid film thickness tends to decrease in the axial direction when the operating parameters are constant. At a certain axial position

the liquid film thickness exhibits an “S” shape distribution with the increase of the inlet gas volume

and increases with the inlet liquid volume and nearly linear increase. In addition

the size of inlet nozzle had a significant effect on the distribution of liquid film thickness. The change of liquid film thickness with inlet gas-liquid flow-rate proved that the escape of liquid film was the direct reason for the decrease of liquid separation efficiency of GLCC. The influence of inlet nozzle􀆳s size on the axial distribution of liquid film thickness reflected the interaction between swirl and gravity effects.

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references

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