摘要：Due to the mechanical structure and operating principle of sliding vane pump (SVP), an all-metal artificial lift equipment with high temperature resistance and high pump efficiency, an unbalanced radial hydraulic force always exists in it during oil recovery, which will cause damage on efficiency, safety and service life of pro-duction system. What's more, the flow behavior of fluid through the pump cannot be accurately characterized because current related works fails to capture the influence of the force mentioned. To bridge this knowledge gap, in this paper, the computational fluid dynamics method was introduced and used to analyze the radial hydraulic force under different operating parameters for the first time. On this basis, novel measures to reduce this unbalanced force were put forward, and a design scheme of concentric stator-rotor to completely eliminate the radial hydraulic force was proposed. Main results show that a) increase in eccentricity will contribute to the enhancement of discharge capacity, which will simultaneously aggravate the radial hydraulic force. And this force is proportional to the fluid viscosity, lifting pressure difference and rotation speed. b) The direction of radial hydraulic force of adjacent stages in multistage SVP is opposite. To reduce this unbalanced force, it is recommended to use even-numbered (odd-numbered) multistage pump when the number of total stages is small (large). c) The concentric design eliminates the radial hydraulic force at the expense of the function of self-regulating flow rate. Besides, the stator curve under concentric stator-rotor condition will degrade the kinetic characteristic of vanes.

关键字：Sliding vane pump; Radial hydraulic force; Eccentricity; Pressure distribution; Stator curve

ISSN号：0920-4105

卷、期、页：卷: 213

发表日期：2022-06-01

影响因子：4.345800

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING

参与作者：He, Zuqing,Cao, Nai,Pang, Wei,Nie, Chen,Zhai, Yujia,Chen, Yashu

通讯作者：王烁龙

第一作者：韩国庆

论文类型：期刊论文

论文概要：王烁龙,He, Zuqing,Cao, Nai,韩国庆,Pang, Wei,Nie, Chen,Zhai, Yujia,Chen, Yashu，Mechanical analysis of radial hydraulic force in oil recovery by sliding vane pump，JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING，2022，卷: 213

论文题目：Mechanical analysis of radial hydraulic force in oil recovery by sliding vane pump