Fault diagnosis method for rotor system of centrifugal compressor units

The rotor system of the centrifugal compressor unit comprises the rotor and the support structure. The change in the rotor balance state and the abnormal stiffness of the composite spring are common faults of the rotor system. However, the simultaneous occurrence of the above two will result in an a...

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Main Authors: LIU Baoxia, WANG Meng, MA Yulei
Format: Article
Language:zho
Published: Editorial Office of Oil & Gas Storage and Transportation 2023-06-01
Series:You-qi chuyun
Subjects:
Online Access:http://kykxxb.cumtb.edu.cn/article/10.6047/j.issn.1000-8241.2023.06.010
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author LIU Baoxia
WANG Meng
MA Yulei
author_facet LIU Baoxia
WANG Meng
MA Yulei
author_sort LIU Baoxia
collection DOAJ
description The rotor system of the centrifugal compressor unit comprises the rotor and the support structure. The change in the rotor balance state and the abnormal stiffness of the composite spring are common faults of the rotor system. However, the simultaneous occurrence of the above two will result in an abnormal vibration that is not easy to be distinguished. In order to identify and diagnose such faults accurately, a rotor vibration analysis model was established to analyze the change in the rotor unbalance state and the abnormal stiffness of composite spring at different rotating speeds. Meanwhile, the influence of such faults on vibration was studied. The results show that the rotor vibration response will produce a series of regular changes when the above two faults occur. The relevant theories were verified by practical application, providing theoretical and practical support for the identification and analysis of the fault. Generally,the research results could assist the field staff to find the abnormal state of rotor balance, the abnormal stiffness of the composite spring,and the complex fault at the simultaneous occurrence of the two. This is helpful to judge the fault location, find out the fault cause and formulate the targeted maintenance plan, so as to ensure the safe operation of centrifugal compressor units in long-distance natural gas pipelines.
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spelling doaj.art-882dfac8f8cc48bdb5ec7f24981e8e6c2024-04-15T08:14:20ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412023-06-0141668569310.6047/j.issn.1000-8241.2023.06.01020230610Fault diagnosis method for rotor system of centrifugal compressor unitsLIU Baoxia0WANG Meng1MA Yulei2Compressor Unit Maintenance and Repair Center, PipeChina North Pipeline CompanyCompressor Unit Maintenance and Repair Center, PipeChina North Pipeline CompanyCompressor Unit Maintenance and Repair Center, PipeChina North Pipeline CompanyThe rotor system of the centrifugal compressor unit comprises the rotor and the support structure. The change in the rotor balance state and the abnormal stiffness of the composite spring are common faults of the rotor system. However, the simultaneous occurrence of the above two will result in an abnormal vibration that is not easy to be distinguished. In order to identify and diagnose such faults accurately, a rotor vibration analysis model was established to analyze the change in the rotor unbalance state and the abnormal stiffness of composite spring at different rotating speeds. Meanwhile, the influence of such faults on vibration was studied. The results show that the rotor vibration response will produce a series of regular changes when the above two faults occur. The relevant theories were verified by practical application, providing theoretical and practical support for the identification and analysis of the fault. Generally,the research results could assist the field staff to find the abnormal state of rotor balance, the abnormal stiffness of the composite spring,and the complex fault at the simultaneous occurrence of the two. This is helpful to judge the fault location, find out the fault cause and formulate the targeted maintenance plan, so as to ensure the safe operation of centrifugal compressor units in long-distance natural gas pipelines.http://kykxxb.cumtb.edu.cn/article/10.6047/j.issn.1000-8241.2023.06.010centrifugal compressor unitrotorvibrationfault diagnosisunbalancestiffness of composite spring
spellingShingle LIU Baoxia
WANG Meng
MA Yulei
Fault diagnosis method for rotor system of centrifugal compressor units
You-qi chuyun
centrifugal compressor unit
rotor
vibration
fault diagnosis
unbalance
stiffness of composite spring
title Fault diagnosis method for rotor system of centrifugal compressor units
title_full Fault diagnosis method for rotor system of centrifugal compressor units
title_fullStr Fault diagnosis method for rotor system of centrifugal compressor units
title_full_unstemmed Fault diagnosis method for rotor system of centrifugal compressor units
title_short Fault diagnosis method for rotor system of centrifugal compressor units
title_sort fault diagnosis method for rotor system of centrifugal compressor units
topic centrifugal compressor unit
rotor
vibration
fault diagnosis
unbalance
stiffness of composite spring
url http://kykxxb.cumtb.edu.cn/article/10.6047/j.issn.1000-8241.2023.06.010
work_keys_str_mv AT liubaoxia faultdiagnosismethodforrotorsystemofcentrifugalcompressorunits
AT wangmeng faultdiagnosismethodforrotorsystemofcentrifugalcompressorunits
AT mayulei faultdiagnosismethodforrotorsystemofcentrifugalcompressorunits