Analysis of abnormal vibrations of crude oil efflux pumps using Ansys
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Xian Shiyou University, Mechanical Engineering College, Xi’an, China
Xidian University, The School of Mechano-Electronic Engineering, Xi’an, China
Cementing Company Downhole Service Company CCDC, Chengdu, China
Changqing Oilfield Second Oil Transmission Office, Xianyang, China
Submission date: 2022-07-06
Final revision date: 2022-08-23
Acceptance date: 2022-10-03
Online publication date: 2022-12-18
Publication date: 2023-01-30
Journal of Theoretical and Applied Mechanics 2023;61(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.
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