基于响应面法的井下油水分离微型旋流器结构参数优化  

Structural optimization of mini-hydrocyclone for downhole oil-water separation based on response surface methodology

作　　者：卢梦媚 赵立新[1,2] 刘琳 王皓 蒋明虎[1,2] LU Mengmei;ZHAO Lixin;LIU Lin;WANG Hao;JIANG Minghu(School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing163318,China;HeilongjiangKey Laboratory of Petroleum and Petrochemical Multiphase Treatment and Pollution Prevention,Daqing163318,China;Daqing Petrochemical Company Oil Refinery,Daqing163711,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]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 [3]大庆石化公司炼油厂,黑龙江大庆163711

出　　处：《流体机械》2024年第5期32-39,共8页Fluid Machinery

基　　金：国家自然科学基金区域创新发展联合基金(重点)项目(U21A20104);黑龙江省自然科学基金(重点)项目(ZD2020E001);东北石油大学“龙江学者”配套经费支持项目(lj201803)。

摘　　要：针对微型旋流器分离性能受结构参数影响较大的问题,基于数值模拟方法和Box-Behnken设计,采用二阶多项式基函数构建微型旋流器底流口直径等5个主要结构参数与分离效率及压力损失间的数学关系模型,并对优化前、后的微型旋流器开展数值模拟和室内试验。通过对模拟数据进行方差分析验证了数学关系模型的精度,等高线图明确了结构参数之间的交互作用以及对分离效率及压力损失的影响程度。结果表明,底流口直径、小锥角、溢流口直径是影响微型旋流器分离效率和压力损失的重要结构因素;优化后的微型旋流器的结构参数为L_(1)=9.554 mm,D_(d)=2.184 mm,D_(o)=2.977,θ=9.39°,θ_(2)=2°,相较于初始结构分离效率提高了3.7%。研究结果可为高性能井下油水分离微型旋流器的设计提供参考。To address the problem of the significant impact of structural parameters on the separation performance of micro cyclones,a mathematical model for the relationship between the five main structural parameters of micro cyclones,including the diameter of the bottom flow port,and separation efficiency and pressure loss,was constructed using second-order polynomial basis functions based on numerical simulation methods and Box Behnken design.Numerical simulation and indoor experiments were conducted on the micro cyclones before and after optimization.The accuracy of the mathematical relationship model was verified through variance analysis of simulated data,and the contour plot clarified the interaction between structural parameters and the degree of impact on separation efficiency and pressure loss.The results indicate that the diameter of the bottom flow port,small cone angle,and overflow port diameter are important structural factors that affect the separation efficiency and pressure loss of the micro cyclone;The structural parameters of the optimized micro cyclone are L_(1)=9.554 mm,D_(d)=2.184 mm,D_(o)=2.977,θ=9.39°,θ_(2)=2°,and the separation efficiency is increased by 3.7%compared to the initial structure.The research results can provide reference for the design of high-performance downhole oil-water separation micro cyclones.

关 键 词：同井注采 微型旋流器 响应面法 结构优化 分离性能 

分 类 号：TH138.8[机械工程—机械制造及自动化]