气液两相条件下叶片开孔对电潜泵性能和内部流场的影响

王通; 王健; 施卫东; 韩勇; 周岭

气液两相条件下叶片开孔对电潜泵性能和内部流场的影响

王通¹,
王健^2,3,
施卫东⁴,
韩勇²,
周岭^2,

1. 中海油田服务股份有限公司;
2. 江苏大学国家水泵及系统工程技术研究中心;
3. 潍柴动力股份有限公司;
4. 南通大学机械工程学院

基金项目:

国家自然科学基金资助项目(51979138)

江苏省杰出青年基金资助项目(BK20230011)

详细信息

作者简介:
王通(1987—),男,宁夏中宁人,高级工程师(wangtong3@cosl.com.cn),主要从事稠油开采和人工举升研究

通讯作者:
周岭(1986—),男,河南南阳人,研究员(lingzhou@ujs.edu.cn),主要从事流体机械内流机理研究

中图分类号: TE933.3
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出版历程
- 收稿日期: 2022-12-20
- 刊出日期: 2024-06-27

Effect of blade perforation on performance and internal flow field of electric submersible pump under gas-liquid two-phase conditions

1. China Oilfield Services Limited;
2. National Research Center of Pumps, Jiangsu University;
3. Weichai Power Co., Ltd.;
4. School of Mechanical Engineering, Nantong University

摘要

摘要: 为了研究电潜泵内部流动机理，从而改善高含气工况下电潜泵的气液混输性能，文中基于欧拉-欧拉非均相流模型，对不同入口含气率工况下叶片开孔前后的气液两相流动特性进行了数值模拟分析，探究了气液两相流条件下叶片开孔对电潜泵性能和内部流场的影响.结果表明，在纯水工况以及低含气率、小流量工况下，叶片开孔会降低电潜泵性能；但是叶片开孔可以改善电潜泵在大流量下的气液混输性能.叶片开孔后会改变叶轮内部压力分布，使电潜泵叶轮内部平均压力升高，进而改善叶轮内部流态.叶片开孔后会冲散气相聚集，使气体分布更加均匀，叶轮流道内涡核分布明显减少，减少了能量耗散.该研究为改善电潜泵气液混输性能提供了理论依据.
- 电潜泵 /
- 叶片开孔 /
- 气液两相流 /
- 数值模拟 /
- 涡核分布
Abstract: In order to study the internal flow mechanism of the electric submersible pump, so as to improve the gas-liquid mixing performance of the electric submersible pump under high gas content conditions, numerical simulation based on the Eulerian-Eulerian non-homogeneous flow model was carried out to analyze the gas-liquid two-phase flow characteristics before and after the blade perforation. The effect of blade perforation on the performance and internal flow field of the electric submersible pump under the conditions of gas-liquid two-phase flow was investigated. The results show that in pure water environment, the blade perforation reduces the performance of the electric submersible pump under low gas content and small flow rate condition. However, the blade perforation can improve the gas-liquid mixing performance of the electric submersible pump under large flow rate. Blade perforation changes the pressure distribution inside the impeller, so that the average pressure inside the impeller of the electric submersible pump rises, thus improving the flow pattern inside the impeller. Blade perforation also disperses the gas-phase aggregation and makes the gas distribution more uniform. As a result, the distribution of vortex core in the impeller channel is significantly reduced, which reduces the energy dissipation. This study provides a theoretical basis for the subsequent improvement of the gas-liquid mixing performance of the electric submersible pump.
- electric submersible pump /
- blade perforation /
- gas-liquid two-phase flow /
- numerical simulation /
- vortex core distribution

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