600 MW汽轮发电机组调试中的振动监测与诊断

Monitor and Diagnosis on 600 MW Turbo-generator Sets during Commissioning

介绍了中电投蒙东大板发电有限责任公司2台600 MW汽轮发电机组在调试期间遇到的振动问题,包括低速运转时轴振指示较大、轴系发生动静摩擦、带负荷运行中汽轮机侧振动发生大幅变化。以实测振动数据和图谱对这些振动问题的特点进行了分析,给出了诊断方法。同时,针对大机组振动问题给出了一些建议。

This paper introduces the vibration problem of two 600 MW turbo-generator sets in Daban Power Co. , Ltd. , occured dur- ing commissioning, including high shaft vibration indication under low speed, the friction between rotor and stator during operation, significant lateral vibration changes within steam turbine part during load operation and shafting dynamic balance. Based on the meas- ured vibration data and mapping, it makes analysis on the characteristics of the vibration problem and gives out the diagnosis method. Finally, it puts forward some views on the vibration problem of large units of the author.