| 高背压供热汽轮机低压转子模态分析 |
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| 引用本文： | 戈志华,马立群,李亚华,董玉亮.高背压供热汽轮机低压转子模态分析[J].汽轮机技术,2019(3):167-170. |
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| 作者姓名： | 戈志华 马立群 李亚华 董玉亮 |
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| 作者单位： | 电站设备状态监测与控制教育部重点实验室(华北电力大学) |
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| 摘 要： | 针对汽轮机高背压供热改造后,汽轮机低压转子结构变化,排汽温度升高,有可能造成转子振动的问题,以低压转子标高变化为基础变量,通过模态分析,得出低压转子-轴承系统模态振型,从而分析高背压运行转子振动特性。为指导汽轮机高背压供热改造及汽轮机振动故障诊断奠定理论基础。
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| 关 键 词： | 高背压供热 轴承标高 转子振动特性 模态分析 |
Modal Analysis of Low Pressure Rotor of High Back Pressure Heating Turbine |
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| GE Zhi-hua,MA Li-qun,LI Ya-hua,DONG Yu-liang.Modal Analysis of Low Pressure Rotor of High Back Pressure Heating Turbine[J].Turbine Technology,2019(3):167-170. |
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| Authors: | GE Zhi-hua MA Li-qun LI Ya-hua DONG Yu-liang |
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| Affiliation: | (Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education,North China Electric Pow er University,Beijing 102206, China) |
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| Abstract: | In view of the problem of rotor vibration caused by the exhaust steam temperature increasing after the high back pressure heating retrofit of steam turbine, the modal mode of the low-pressure rotor-bearing system is obtained by modal analysis based on the elevation change of the low-pressure rotor in this paper. So that the vibration characteristics of rotor with high back pressure are analyzed, which lays a foundation for the retrofit of high back pressure heat supply of steam turbine and the diagnosis of vibration fault of low pressure cylinder. |
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| Keywords: | steam turbine high back pressure heating bearing elevation rotor vibration characteristics modal analysis |
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