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华能北京热电2号汽轮机组高压转子振动故障诊断及处理
Vibration Malfunction Diagnosis and Treatment for Hua-neng Beijing No.2 HP Turbine Rotor
【摘要】 2号机组在冷态开机过程中均存在高压转子1瓦轴振幅值过大故障,通过分析历史数据,诊断振动故障为中心孔进油以后诱发高压转子产生热弯曲所致。检查结果验证了诊断结论的正确性,清理并密封高压转子中心孔以后,冷态开机过程中高压转子振动正常,困扰电厂长达10年之久的振动故障得以成功消除。
【Abstract】 Relative rotor vibration amplitude increased close to trip level during load-up period in every cold start. Analysis of history vibration data reveals that the lube oil imbibed into center bore caused the HP rotor to thermal bent. The vibration malfunction has been successfully eliminated by cleaning and sealing the center bore.
【关键词】 高压转子;
冷态开机;
转子振动;
中心孔进油;
热弯曲;
【Key words】 HP turbine rotor; cold start; rotor vibration; lube oil imbibed into center bore; thermal bent;
【Key words】 HP turbine rotor; cold start; rotor vibration; lube oil imbibed into center bore; thermal bent;
- 【文献出处】 汽轮机技术 ,Turbine Technology , 编辑部邮箱 ,2015年02期
- 【分类号】TM621
- 【被引频次】2
- 【下载频次】142