基于ANSYS抽油泵筒-柱塞摩擦副磨损规律分析  

Analysis on Wear Law of Friction Pair of Oil-well Pump Barrel-plunger Based on ANSYS

作　　者：谢文献[1] 苏庆欣[1] 郭立谦[1] 孙喆[1] 张立军[2] 郭伟健 张辛[2] Xie Wenxian;Su Qingxin;Guo Liqian;Sun Zhe;Zhang Lijun;Guo Weijian;Zhang Xin(Shengli Oil Production Plant of Sinopec Shengli Oilfield Company;College of Mechanical and Electrical Engineering,China University of Petroleum(Huadong))

机构地区：[1]中石化胜利油田分公司胜利采油厂 [2]中国石油大学(华东)机电工程学院

出　　处：《石油机械》2022年第1期115-121,共7页China Petroleum Machinery

基　　金：国家自然科学基金项目“海底复杂环境下深水采油树系统失效机理及故障诊断方法研究”(51779267);中国石油大学(华东)实践教学改革项目“油气田井下磨铣工具教学实验平台设计与开发”(SJ-202012)。

摘　　要：针对缺少在模拟工况下对抽油泵摩擦副进行优化分析的现状,研究了抽油泵泵筒-柱塞摩擦副在模拟工况下的磨损状态,建立了泵筒-柱塞模型,设计正交试验研究了摩擦副在不同配合间隙下,不同因素水平对其磨损状态的影响程度,确定了磨损最优的因素水平组合。研究结果表明:摩擦副的配合间隙越大,其摩擦应力和磨损体积均显著增大,配合间隙减小后,整体磨损体积减小了10.05%且磨损状态有所改善;当单边间隙为0.05 mm时,60 s内泵筒涂覆层表面磨损体积为0.184 13~0.376 83 mm^(3),当液体压力为10 MPa,涂覆层硬度为1 150 MPa,抽油杆冲程为300 mm,液体润滑摩擦因数为0.11时,摩擦副减摩抗磨效果最好。所得结论可以为抽油泵的合理选用提供技术指导。In view of the lack of optimization analysis on the friction pair of oil well pump under simulated working conditions, the wear state of liner jacket-plunger friction pair was mainly studied under simulated working conditions, and a liner jacket-plunger model was built, an orthogonal test was designed to study the influence of different factors on the wear state of the friction pair under different fit clearances, and determined the optimal factor combination of wears. The analysis results show that the friction stress and wear volume of friction pair increase obviously with the increase of fit clearance;after the fit clearance decreases, the overall wear volume decreases by 10.05% and the wear state is improved to some extent;when the unilateral clearance is 0.05 mm, the wear volume of coating layer on the liner jacket within 60 s is 0.184 13~0.376 83 mm^(3);when the liquid pressure is 10 MPa, the hardness of coating layer is 1 150 MPa, the rod stroke is 300 mm, and the friction coefficient of liquid lubrication is 0.11, the wear reduction and resistance effect of the friction pair is the best. The conclusions will provide technical guidance for the rational selection of oil-well pump.

关 键 词：泵筒-柱塞摩擦副 仿真分析 正交试验 摩擦应力 磨损体积 

分 类 号：TE933[石油与天然气工程—石油机械设备]