摘要
入口结构决定着进入柱状气液旋流分离器的气-液分布及初始切向入口速度大小。对4种入口结构形式的柱状气液旋流分离器(GLCC)的分离性能进行了数值模拟和试验研究,并将模拟结果与试验结果进行对比。模拟时考虑了入口结构形式、气体体积分数和压力降对GLCC分离性能的影响。分析结果表明,入口结构对GLCC内部气液分布具有决定性作用,具有明显压力梯度的入口结构有助于改善旋流腔内气液分布;渐缩截面型入口有助于GLCC内部形成0速度分界面,0速度分界面的形成有利于降低GLCC溢流口的气体含液量,减少短路流,提高GLCC的综合分离性能。
The inlet structure determines the distribution of gas and liquid which enter the cylindrical gas-liquid cyclone （GLCC） as well as the initial tangential velocity at the inlet. The numerical simulation and experimental study of the separation performance of the GLCC of four inlet structural patterns were conducted. A comparison of the simulation result and the test result was made. A full consideration was given to the effect of the inlet structural pattern, gas volume fraction and pressure drop on the GLCC separation performance. The analysis and simulation result and the test result show that the inlet structure has a decisive effect on the inner gas-liquid distribution of the GLCC. The inlet structure with an obvious pressure gradient helps to improve the gas-liquid distribution of the whirl chamber. The inlet of reducing section type helps to form the zero-speed interface within the GLCC. The formation of the interface helps to reduce the gas content of the GLCC overflow port and improve the comprehensive separation performance of the GLCC.
出处
《石油机械》
北大核心
2013年第2期79-83,共5页
China Petroleum Machinery
基金
国家863计划项目"井下油水分离及同井回注技术与装备"(2012AA061303)
关键词
气液分离器
入口
结构形式
数值模拟
压力梯度
分流比
分离效率
gas-liquid cyclone
inlet
structural pattern
numerical simulation
pressure gradient
split ratio
separation efficiency
