石油学报(石油加工) ›› 2021, Vol. 37 ›› Issue (1): 88-99.doi: 10.3969/j.issn.1001-8719.2021.01.009

• 研究报告 • 上一篇    下一篇

管柱式气-液分离器溢流压力降计算模型

王亚安1,2,陈建义1,2,叶松1,2,岳题1,2,杨洋1,2,韩明珊1,2   

  1. 1. 中国石油大学(北京)重质油国家重点实验室,北京 102249;
    2. 过程液体过滤与分离技术北京市重点实验室,北京 102249
  • 收稿日期:2019-12-19 修回日期:2020-03-30 出版日期:2021-01-25 发布日期:2021-01-12
  • 通讯作者: 陈建义,男,教授,博士,从事多相流分离技术与装备研究,E-mail:jychen@cup.edu.cn E-mail:jychen@cup.edu.cn
  • 作者简介:第一作者:王亚安,男,博士研究生,从事气,液两相流动与分离技术研究
  • 基金资助:
    国家重点研发计划项目(2016YFC0303708)基金和国家自然科学基金项目(22078357)资助

Calculation Model of Overflow Pressure Drop in Gas-Liquid Cynlindrical Cyclone

WANG Yaan1,2, CHEN Jianyi1,2, YE Song1,2, YUE Ti1,2, YANG Yang1,2, HAN Mingshan1,2   

  1. 1. State Key laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China; 2. Beijing Key laboratory of Process Fluid Filtration and Separation, Beijing 102249, China
  • Received:2019-12-19 Revised:2020-03-30 Online:2021-01-25 Published:2021-01-12

摘要: 溢流压力降是评价管柱式气-液分离器(Gas-liquid cylindrical cyclone,GLCC)分离性能的重要指标,目前尚未形成有效的预测方法。为了准确预测GLCC溢流压力降,笔者基于压力降沿程分布理论,结合实验观测数据,综合考虑分离器结构参数、气-液相操作参数及物性参数,建立了GLCC溢流压力降的半理论-半经验模型。该模型首次将GLCC溢流压力降分为3部分,即入口(I区)损失、筒体(II区)损失及出口(III区)损失;并且在筒体损失的计算中,考虑了不同气、液相流型的分布及液滴携带因素对压力降的影响。该模型既可用于计算气-液两相溢流压力降,也可计算单气相溢流压力降。将该模型计算值与实验测量值进行对比,其相对误差在25%以内,说明该模型精度较高,建模方法可行。

关键词: 管柱式气-液分离器(GLCC), 气-液两相流;压力降;模型

Abstract: Overflow pressure drop is an important index to evaluate the separation performance of Gas-liquid cylindrical cyclone (GLCC). At present, there is no effective prediction method to calculate the overflow pressure drop. In order to accurately predict the overflow pressure drop of GLCC, a semi-theoretical model is established based on the theory of pressure drop distributes along the path, as well as experimental data. This model considers the impact of structure parameters, gas-liquid operation conditions and fluid physical properties. It assumes that the overflow pressure drop in GLCC consists of three parts, i.e. inlet (zone I) loss, cylinder (zone II) loss and outlet (zone III) loss. In the calculation of cylinder loss, effects of different gas-liquid flow patterns and droplets entrainment on the pressure drop are all considered. The developed model can be used to calculate the pressure drop for either the gas-liquid two-phase flow or the single gas flow. Compared with experimental data, the relative error of this model is within 25%. This demonstrates that the model accuracy is high and modeling method is feasible.

Key words: gas-liquid cylindrical cyclone(GLCC), gas-liquid two-phase flow, pressure drop, model

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