Modal and Vibration Analysis of Filter System in Petrochemical Plant

Filter systems are widely used in petrochemical plants for removing solid impurities from hydrocarbon oils. The backwash is the cleaning process used to remove the impurities on the sieves of the filters without a need to interrupt the operation of the entire system. This paper presents a case study...

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Main Authors: Liu, Zhongchi, Wang, Ji, Gho, Wie Min, Liu, Xiao, Yu, Xuebing
Other Authors: School of Civil and Environmental Engineering
Format: Journal Article
Language:English
Published: 2018
Subjects:
Online Access:https://hdl.handle.net/10356/88326
http://hdl.handle.net/10220/44593
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author Liu, Zhongchi
Wang, Ji
Gho, Wie Min
Liu, Xiao
Yu, Xuebing
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Liu, Zhongchi
Wang, Ji
Gho, Wie Min
Liu, Xiao
Yu, Xuebing
author_sort Liu, Zhongchi
collection NTU
description Filter systems are widely used in petrochemical plants for removing solid impurities from hydrocarbon oils. The backwash is the cleaning process used to remove the impurities on the sieves of the filters without a need to interrupt the operation of the entire system. This paper presents a case study based on the actual project of a filter system in a petrochemical plant, to demonstrate the significant effect of vibration on the structural integrity of piping. The induced vibration had led to the structural fatigue failure of the pipes connecting the filter system. A preliminary assessment suggested that the vibrations are caused by the operation of backwashing of the filter system. A process for solving the vibration problem based on the modal analysis of the filter system using the commercial finite element software for simulation is therefore proposed. The computed natural frequencies of the system and the vibration data measured on site are assessed based on the resonance effect of the complete system including the piping connected to the filters. Several approaches are proposed to adjust the natural frequencies of the system in such a way that an optimal and a reasonable solution for solving the vibration problem is obtained.
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spelling ntu-10356/883262020-03-07T11:43:37Z Modal and Vibration Analysis of Filter System in Petrochemical Plant Liu, Zhongchi Wang, Ji Gho, Wie Min Liu, Xiao Yu, Xuebing School of Civil and Environmental Engineering Maritime Research Centre Filter Systems Petrochemical Filter systems are widely used in petrochemical plants for removing solid impurities from hydrocarbon oils. The backwash is the cleaning process used to remove the impurities on the sieves of the filters without a need to interrupt the operation of the entire system. This paper presents a case study based on the actual project of a filter system in a petrochemical plant, to demonstrate the significant effect of vibration on the structural integrity of piping. The induced vibration had led to the structural fatigue failure of the pipes connecting the filter system. A preliminary assessment suggested that the vibrations are caused by the operation of backwashing of the filter system. A process for solving the vibration problem based on the modal analysis of the filter system using the commercial finite element software for simulation is therefore proposed. The computed natural frequencies of the system and the vibration data measured on site are assessed based on the resonance effect of the complete system including the piping connected to the filters. Several approaches are proposed to adjust the natural frequencies of the system in such a way that an optimal and a reasonable solution for solving the vibration problem is obtained. Published version 2018-03-20T07:35:25Z 2019-12-06T17:00:48Z 2018-03-20T07:35:25Z 2019-12-06T17:00:48Z 2017 Journal Article Liu, Z., Wang, J., Gho, W. M., Liu, X., & Yu, X. (2017). Modal and Vibration Analysis of Filter System in Petrochemical Plant. Shock and Vibration, 2017, 3685675-. 1070-9622 https://hdl.handle.net/10356/88326 http://hdl.handle.net/10220/44593 10.1155/2017/3685675 en Shock and Vibration © 2017 Zhongchi Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 14 p. application/pdf
spellingShingle Filter Systems
Petrochemical
Liu, Zhongchi
Wang, Ji
Gho, Wie Min
Liu, Xiao
Yu, Xuebing
Modal and Vibration Analysis of Filter System in Petrochemical Plant
title Modal and Vibration Analysis of Filter System in Petrochemical Plant
title_full Modal and Vibration Analysis of Filter System in Petrochemical Plant
title_fullStr Modal and Vibration Analysis of Filter System in Petrochemical Plant
title_full_unstemmed Modal and Vibration Analysis of Filter System in Petrochemical Plant
title_short Modal and Vibration Analysis of Filter System in Petrochemical Plant
title_sort modal and vibration analysis of filter system in petrochemical plant
topic Filter Systems
Petrochemical
url https://hdl.handle.net/10356/88326
http://hdl.handle.net/10220/44593
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