螺旋流油滴聚结器结构优化与性能分析  

Structure optimization and performance analysis of helical flow oil droplet coalescer

作　　者：张晓光[1] 司书言 赵立新[1] 徐保蕊[1] 林子莎 ZHANG Xiaoguang;SI Shuyan;ZHAO Lixin;XU Baorui;LIN Zisha(Heilongjiang Key Laboratory of Petroleum and Petrochemical Multiphase Treatment and Pollution Prevention,School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学、机械科学与工程学院、黑龙江省石油石化多相介质处理及污染防治重点实验室,黑龙江大庆163318

出　　处：《石油化工》2023年第9期1248-1255,共8页Petrochemical Technology

基　　金：国家自然科学基金委员会联合基金项目(U21A20104);中国博士后科学基金资助项目(2021M690594);东北石油大学引导性创新基金项目(2022YDL-07);东北石油大学人才引进科研启动经费资助项目(2020KQ19)。

摘　　要：为解决油水混合液中微小油滴分离处理效果变差问题,研究设计了一种基于螺旋流强化油滴碰撞聚结原理的油滴聚结器,采用数值模拟方法,结合单因素分析与正交实验法,对聚结器进行了结构优化研究,并结合聚结实验,分析了主要聚结结构参数对聚结率(G)和压力损失(ΔP)等聚结性能的影响规律。实验结果表明,可显著影响聚结性能的结构参数按主次顺序依次为槽深、螺距、流道头数、夹角和圈数;通过速度场、油滴粒径、ΔP等对比,确定了聚结器最优结构参数,ΔP仅0.0133 MPa。实际在处理大部分为30μm微小油滴颗粒情况下,可实现G=9.35的最佳效果,模拟结果与实验结果吻合良好。In order to solve the problem of poor separation effect of small oil droplets in oil-water mixture,a kind of oil droplets coalescer was designed based on the principle of helical flow enhanced collision and coalescence of oil droplets.The structure of the coalescer was optimized by numerical simulation method combined with single factor analysis and orthogonal experiments.The effects of main coalescence structure parameters on coalescence performance such as coalescence rate(G)and pressure loss(ΔP)were analyzed by coalescence experiments.The experimental results show that the structural parameters that can significantly affect the coalescence performance are groove depth,pitch,number of runner heads,angle of helical blade and number of helical channels in order of primary.Through comparative analysis of velocity field,oil droplet size andΔP,the optimalstructural parameters of the coalescer are determined.TheΔP is only 0.0133 MPa.The best G of 9.35 can be achieved under the practical conditions of 30μm of particle size of most small oil droplets.The simulation results are in good agreement with the experimental results.

关 键 词：油滴聚结器 螺旋流 结构优化 数值模拟 性能实验 

分 类 号：TQ051.1[化学工程]