柱状气液分离器入口组合立管内液塞特性研究  

Features of Liquid Plug in Composite Riser at the Inlet of Gas-liquid Cylindrical Cyclone

作　　者：王立满[1] 何利民[1] 张虎 罗小明[1] 刘军梅 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院 [2]新疆油田工程技术公司 [3]青岛武船重工有限公司

出　　处：《石油机械》2015年第4期94-98,共5页China Petroleum Machinery

基　　金：国家863计划项目"水下分离器关键技术研究"(2013AA09A213)

摘　　要：目前,对于柱状气液分离器(GLCC)组合立管内液塞的运动规律研究较少。为进一步完善GLCC入口流型控制策略,以GLCC入口管与来流管线之间的组合立管为对象,建立了一套气液两相流试验系统,试验研究了该组合立管内液塞速度、长度及动能比的变化规律。研究结果表明:(1)液塞通过组合立管时由减速运动转变为加速运动,组合立管同一位置处液塞长度的概率统计符合对数正态分布;(2)平均液塞长度沿组合立管先增大后减小,并且变化幅度随折算气速增大而减小;(3)液塞动能比沿组合立管先减小后增大,出口段液塞动能比随折算气速增大而减小。Currently, there are no much researches related to patterns of liquid-plug movements in composite riser of gas-liquid cylindrical cyclone （GLCC） . To further enhance control strategy for configurations of GLCC inlets, a testing assembly for gas-liquid flows has been constructed with the composite riser between GLCC inlet and the inflow pipeline as the objective of relevant study. By using the assembly, patterns related to changes in velocities, lengths and kinetic energy ratio within the composite riser have been reviewed. Relevant research results show that ： （ 1 ） passing through the composite riser, liquid plug may convert from decelerated motion to accelerated mo- tion, whereas probability statistics related to lengths of liquid plug on the same position of the composite riser con- form to logarithmic normal distribution; （2） along the composite riser, average lengths of the liquid plug may increase first and decrease later with amplitudes of such changes decreasing with increases of equivalent gas velocity; （3） kinetic energy ratios of the liquid plug may decrease first and increase later along the composite riser. Kinetic energy ratios in the outlet section may decrease with increase of equivalent gas velocity.

关 键 词：柱状气液分离器 组合立管 液塞 速度 长度 动能比 

分 类 号：TE355[石油与天然气工程—油气田开发工程]