Fault Statistical Classification and Fault Mode Analysis of Steam-Induced Vibration of Steam Turbine

Abstract:

Steam-induced vibration fault seriously affects the reliable operation of supercritical steam turbine. A lot of actual cases of steam-induced vibration of steam turbine were collected in this work. Based on the cases, steam-induced vibration fault was statistical and classified by fault severity, fault reason, occurrence load and happened time. The results show that steam-induced vibration usually occurs after turbine runs one year later and turbine is with a high load. Oil temperature change is the main running parameters which affect steam-induced vibration. Distribute steam mechanism, especially improper opening and order of adjustment valve, is the most important factor causing steam-induced vibration fault. Meanwhile, based on the FMEA method, fault mode of steam-induced vibration was analyzed in detail.

• Periodical: Applied Mechanics and Materials (Volumes 50-51)
• Pages: 554-558
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.50-51.554
• Online since: February 2011
• Authors: Cheng Bing He, Yu Jiong Gu
• Keywords: Effect Analysis, Failure Mode, Fault Mode, Steam Turbine, Steam-Induced Vibration

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