新型气液分离器研究

发布时间：2018-04-13 17:14

  本文选题：气液分离器 + 两相流　； 参考：《东北石油大学》2017年硕士论文

【摘要】：随着油气田产出液含气量的不断增多,气体的影响日益加大,因此有必要研究气液两相流问题。气液两相流据其自身特点可以分为气泡流、液滴流、气块流及分层流。本文基于气液两相旋流分离原理,按照气泡在气液两相流中的流动特性,结合水力旋流器的工作特性,设计了一种新型高效气液旋流分离装置。应用计算流体动力学软件,分析了气液旋流分离器内部流场运动规律。基于仿真结果,得到最佳的结构和操作参数。完成了实验样机的研制加工并进行室内实验,对模拟仿真数据与实验数据进行分析,结果表明气液分离器结构设计合理,分离性能良好。溢流管及内锥结构是本气液分离器设计的核心内容,采用UG NX8.5完成三维建模,应用ANSYS软件的Fluent模块进行数值模拟。数值模拟主要讨论了分离器分流比对气体分离效率的影响、不同截面处压力场和速度场的变化规律以及不同含气率情况下的分离效率研究。室内实验分析了分流比、体积含气率与压力降和分离效率之间的关系。实验结果表明了气液旋流分离器结构设计的合理性及气液分离的高效性,同时对数值模拟的正确性进行了验证,对以后的结构优化提供了一定的参考。
[Abstract]:With the increasing of gas content in oil and gas field, the influence of gas is increasing, so it is necessary to study the problem of gas-liquid two-phase flow.According to its own characteristics, gas-liquid two-phase flow can be divided into bubble flow, droplet flow, gas block flow and stratified flow.Based on the separation principle of gas-liquid two-phase swirl, according to the flow characteristics of bubbles in gas-liquid two-phase flow and the working characteristics of hydrocyclone, a new high-efficiency gas-liquid swirl separation device is designed in this paper.By using computational fluid dynamics software, the flow field movement in gas liquid cyclone separator is analyzed.Based on the simulation results, the optimal structure and operation parameters are obtained.The experimental prototype was developed and processed, and the simulation data and experimental data were analyzed. The results show that the structure design of the gas-liquid separator is reasonable and the separation performance is good.The structure of overflow pipe and inner cone is the core of the design of the gas-liquid separator. UG NX8.5 is used to complete the three-dimensional modeling and the Fluent module of ANSYS software is used to carry out numerical simulation.The numerical simulation mainly discusses the effect of the separation ratio of the separator on the gas separation efficiency, the variation of pressure field and velocity field at different cross sections and the separation efficiency under different gas holdup.The relationship between the flow ratio, volume gas holdup and pressure drop and separation efficiency was analyzed.The experimental results show that the structure design of gas-liquid cyclone separator is reasonable and the efficiency of gas-liquid separation is high. At the same time, the correctness of numerical simulation is verified, which provides a certain reference for the structure optimization in the future.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE937
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本文编号：1745439