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1 Journal of Theoretical and Applied Mechanics

1 2023

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Analysis of abnormal vibrations of crude oil efflux pumps using Ansys

Wang Tianqi, Xie Lei, Yu Hongsheng, Wei Xiuliang, Dong Pengmin, Zhao Tianyi

Journal of Theoretical and Applied Mechanics

2023

Vol. 61 nr 1

23--36

In this study, abnormal vibrations of 1 pump fluid in a crude oil efflux station in the Changqing Oilfield was investigated. Kinetic simulation was applied to flow fields in the crude oil efflux pump using Ansys to determine trends of the impeller static pressure, speed, total pressure, wall pressure of the impeller, outlet pressure and pressure on the pump shell and to identify the reasons behind the abnormal vibrations. The results indicated that the axial vibration amplitude of the pump could be reduced from 1.3mm down to 0.68mm if the operation parameters of the external control oil pump were set as 2500-2550r/min and 325-335m3/h, respectively.