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通过对某电厂4号机组4号~6号瓦振动突变的分析,得出LPII转子次末级调阀端某叶片的叶冠脱落是导致振动突变的结论,为该机组的检修提供了可靠的依据,可供同类机组的该类故障分析及检修提供参考。
Through the analysis of the sudden change of the vibration of No. 4 to No. 6 tile of No.4 unit in a power plant, it is concluded that the tip crown of a blade on the secondary end of the LPII rotor shedding is the result of the sudden change of vibration, which provides a reliable Based on the same unit for such failure analysis and maintenance provide a reference.