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电动潜油离心泵叶轮冲蚀磨损研究
刘延鑫,王旱祥,汪润涛,晁明伟,张震宁,黄海春,马振勇
0
(中国石油大学机电工程学院,山东青岛 266580;中国石油大学石油工程学院,山东青岛 266580;中国石油工程公司华东设计分公司,山东青岛 266071;江苏省海洋油气钻井装备重点实验室,江苏姜堰 225532;中国石油青海油田分公司采油一厂,青海海西 816400)
摘要:
针对油田特高含水阶段电动潜油离心泵叶轮冲蚀磨损问题,采用RNG k-ε湍流模型和离散相模型并利用SIMPLEC算法进行求解,实现对电潜泵冲蚀磨损的数值模拟,并研究工况参数和叶片结构参数对电潜泵叶轮冲蚀磨损的影响。结果表明:叶轮叶片吸力面是叶轮冲蚀磨损严重区域;随着砂粒浓度的升高及叶轮转速的提高,叶轮磨损速率增大;随着粒径及出口安放角的增加,叶轮磨损速率先升高后降低;叶轮平均磨损率随着进口安放角的增加而降低。
关键词:  电动潜油离心泵  离散相模型  湍流模型  冲蚀磨损  数值模拟
DOI:10.3969/j.issn.1673-5005.2017.04.020
投稿时间:2016-08-22
基金项目:国家重大专项(2011ZX05038-02);山东省自然科学基金项目 (ZR2015EL012);中央高校基本科研业务费专项(17CX02022A)
Study on erosive wear of electric submersible pump 's impeller
LIU Yanxin,WANG Hanxiang,WANG Runtao,CHAO Mingwei,ZHANG Zhenning,HUANG Haichun,MA Zhenyong
(College of Mechanical Engineering in China University of Petroleum, Qingdao 266580, China;School of Petroleum Engineering in China University of Petroleum, Qingdao 266580, China;East China Institute of China Petroleum Engineering and Construction Corportation, Qingdao 266071, China;Jiangsu Key Laboratory of Offshore Oil and Gas Drilling Equipment,Jiangyan 225532,China;The First Oil Production Plant of Qinghai Oilfield Company,PetroChina,Haixi 816400,China)
Abstract:
In order to solve the erosive wear problems in the impeller in the high water-cut stage, the RNG k-ε turbulence model, discrete phase model and SIMPLEC algorithm are employed to realize the simulation of an electric submersible pump 's (ESP) erosive wear. The effects of the working condition and structural parameters of the ESP are also studied. The results show that the concave side of the impeller 's blade is a serious eroded area. With the increases of the sand volume fraction and the impeller speed, the impeller 's wear rate goes up. With the increase of the particle size and outlet angle, the wear rate firstly rises then reduces. Finaly, the impeller 's average wear rate reduces with the increase of the inlet angle.
Key words:  electric submersible pump  discrete phase model  turbulence model  erosive wear  numerical simulation
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