气田高含盐采出水旋转雾化影响因素数值模拟  

Numerical Simulation of Factors Affecting Rotary Atomization of High Salinity Produced Water in Gas Fields

作　　者：唐志伟[1] Tang Zhiwei(Sinopec Petroleum Exploration and Production Research Institute)

机构地区：[1]中国石化石油勘探开发研究院

出　　处：《石油机械》2024年第3期86-92,共7页China Petroleum Machinery

基　　金：中国石油化工集团有限公司科技项目“油气田污水雾化蒸发处理技术研究”(P15032)。

摘　　要：雾化后的液滴粒径越集中,越容易控制雾化过程,调节雾化参数可达到降低气田采出水系统的运行成本,提升处理效果的目的。采用耦合气液两相湍流理论、离散相模型和TAB(Taylor Analogy Breakup)模型,建立了基于拉格朗日方法的旋转雾化模型,对气田高含盐采出水雾化过程进行了数值模拟研究,复现了不同时刻液滴破碎过程,得到连续相空气、离散相液滴的速度矢量分布。分析旋转雾化转速、转盘直径、进液量的影响作用规律。研究结果表明,转速越快、转盘直径越大、进液量越少,雾化效果越好。研究结果可为旋转雾化器的结构工艺参数优化提供理论参考。The more concentrated the droplet size after atomization,the more easily the atomization process is controlled.Adjusting atomization parameters can reduce the operating cost of the produced water system of gas field and improve the treatment effect.In this paper,the coupled gas-liquid two-phase turbulence theory,discrete phase model and TAB(Taylor Analogy Breakup)model were used to build a Lagrangian method based rotary atomization model to conduct numerical simulation on the atomization process of high salinity produced water of gas fields,reproduce the droplet fragmentation process at different times,and obtain the velocity vector distribution of continuous phase air and discrete phase droplets.Then,the influences of rotary atomization speed,rotary diameter and liquid inlet volume were analyzed.The results show that the higher the rotary speed,the larger the rotary diameter and the less the liquid inlet volume,the better the atomization effect is.This study provides a theoretical reference for optimizing the structural and technical parameters of the rotary atomizer.

关 键 词：气田采出水 液滴雾化 旋转雾化器 数值模拟 影响因素 

分 类 号：TE992[石油与天然气工程—石油机械设备]