地面起伏湿气集输管道涡流排液数值模拟及试验

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英文篇名：Numerical simulation and test on vortex drainage of hilly-terrain wet gas pipelines 作者：刘占良 ; 李柏鹏 ; 刘洋 ; 曹学文 ; 孙媛 英文作者：LIU Zhanliang;LI Bopeng;LIU Yang;CAO Xuewen;SUN Yuan;No.1 Gas Production Plant,PetroChina Changqing Oilfield Company;College of Pipeline and Civil Engineering, China University of Petroleum(East China); 关键词：起伏管道 ; 积液 ; 涡流工具 ; 持液率 ; 压降 英文关键词：hilly-terrain pipelines;;liquid loading;;vortex tool;;liquid holdup;;pressure drop 中文刊名：油气储运 英文刊名：Oil & Gas Storage and Transportation 机构：中国石油长庆油田分公司第一采气厂;中国石油大学(华东)储运与建筑工程学院; 出版日期：2018-10-17 13:38 出版单位：油气储运 年：2019 期：02 基金：国家自然科学基金资助项目“水下油气临界分流取样计量理论及实现方法”,51574272;; 国家重点研发计划专项“临海油气管道检测、监控技术研究与仪器装备研制”,2016YFC0802302;; 研究生创新基金资助项目“水下油气管线微孔泄漏及扩散特性研究”,18CX06039A 语种：中文; 页：46-53 页数：8 CN：13-1093/TE ISSN：1000-8241 分类号：TE866

摘要

为有效清除地面起伏湿气集输管路中的积液,设计加工了一种涡流工具。通过Fluent数值模拟与环道试验分析不同气液相折算速度入口条件对涡流工具排液效果的影响,并对涡流工具的工作效果进行评价。结果表明:安装涡流工具后,上倾管内液相回流及底部积液现象有所缓解,上倾管内维持环状流流型,持液率有所下降。涡流工具的排液降压能力与气液相折算速度、管路倾角有关。在倾角一定的情况下,气相折算速度越大,涡流工具的排液降压能力越强;在相同气、液相折算速度入口条件下,管路倾角(0°～45°)越小,涡流工具的排液降压效果越好。研究成果可为指导涡流排液技术的现场应用提供理论依据。
        In order to solve the safety issues caused by ground occupation of pipelines with corrosion defects, a new type of vortex tool was designed and manufactured in order to remove the liquid loading in hilly-terrain wet gas pipelines. The effects of the inlet conditions of different gas and liquid superficial velocities on the drainage effectiveness of the vortex tool were analyzed by means of Fluent numerical simulation and test, and the working efficiency of the vortex tool was evaluated. It is shown that after the vortex tool is installed, the liquid backflow and bottom liquid loading in the up-dip pipe is relieved to some extent, annular flow is maintained in the up-dip pipe and the liquid holdup is reduced. The drainage and depressurization capacity of the vortex tool depends on the gas and liquid superficial velocity and the pipe inclination angle. When the inclination angle is constant, the drainage and depressurization capacity of the vortex tool increases with the increase of gas superficial velocity. When the inlet condition of gas and liquid superficial velocity is constant, the smaller the pipe inclination angle is(0°-45°), the better the drainage and depressurization efficiency of the vortex tool is. The research results provide theory basis for guiding the site application of vortex drainage technology.

引文

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