摘要
内联式脱液器是一种基于离心力作用并利用气液两相之间密度差进行气液相间分离的紧凑、高效型气液分离设备,因其可以减小自重及节省空间,且可在平台及海底应用而受到越来越多的关注。建立了一组内联式脱液器的数值结构模型,采用计算流体力学(CFD)方法对其进行数值模拟研究。通过分析内联式脱液器内部的速度场及压力场分布情况,总结出影响内联式脱液器分离效率及压力损失的关键结构参数,包括叶片结构参数、分离腔长径比、气体出口管管径及深入长度、排液管管径等。同时,针对叶片结构参数(叶片数目及导向出口角)对内联式脱液器分离性能的影响,进行了数值模拟研究,推选出涡流发生器内最优的叶片结构参数(叶片数目为8,叶片出口角度为45°),从而可为后续内联式脱液器的结构优化、分离性能提升以及降低能耗提供一定的参考。
Inline deliquidiser is a compact and efficient type of gas-liquid separation device which is based on the centrifugal force and the use of the density difference between the gas-liquid separation,and it has received increasing attention because of weight and space savings for topsides and subsea applications. A set numerical structural model of inline deliquidiser,and simulates the structural model through computational fluid dynamics（ CFD）method have been established. Observation of the velocity field and pressure field of inline deliquidiser was focus on. The influence of the key structural parameters on the separation efficiency and pressure losses for inline deliquidiser,including the blade structure parameters,the aspect ratio of the separation chamber,the pipe diameter of the gas outlet and the length of the depth and the pipe diameter of the drain were analysed. At the same time,numerical simulation studies on the effects of structural parameters blades（ number of blades and the guide outlet angle）for the inline deliquidiser＇s separation performance. The results elected the optimal vanes structural parameters（ the number of vanes is 8,vanes exit angle is 45°） within vortex generator. Thus it can be provide a reference for the structural optimization,enhance the separation performance and reduce energy consumption.
出处
《科学技术与工程》
北大核心
2016年第17期86-92,共7页
Science Technology and Engineering
基金
"十三五"国家科技重大专项(2016ZX05032-006-002)资助
关键词
内联式脱液器
气液分离
结构参数
分离性能
压力损失
数值模拟
inline deliquidiser
gas-liquid separation
structure parameters
separation performance
pressure drop
numerical simulation
