摘要
国内三大动力集团公司生产的300MW机组在运行过程中存在一些较为普遍的振动问题,如过发电机/励磁机临界区域振动大、4号轴承振动偏大、大负荷下高中压转子轴承突发性振动等,严重影响机组的安全可靠运行。阐述了国产300MW机组的振动特征,分析振动原因,并总结处理过程,给出现场振动治理的措施。
There are some common vibration problems during operation of home-made 300MW turbine-generators , such as great vibration during critical speeds range of generator/exciter rotor, big housing vibration at No. 4 bearing and sudden vibration of HIP rotor at large load. Which has great influence on unit＇ s safety and reliability. Vibration characteristics and their reason analysis are described in this paper, and some trouble - shooting measures are also given out.
出处
《汽轮机技术》
北大核心
2006年第4期301-303,268,共4页
Turbine Technology
关键词
振动
临界转速
共振
精细动平衡
蒸汽激振
vibration
critical speeds
resonance
fine balance
steam-excited vibration
