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Vibration of 1000-MW Ultra-Supercritical Turbine-Generator Unit with Simens Technology
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作者 Zhang Xueyan Zhang Weijun Ge Xiang He Guoan 《Electricity》 2012年第5期48-54,58,共8页
The layout features of unit shafting and their effects on vibration, as well as evaluation criteria, were introduced for a 1000-MW ultra-supercritical turbine-generator unit with Simens technology. Based on vibration ... The layout features of unit shafting and their effects on vibration, as well as evaluation criteria, were introduced for a 1000-MW ultra-supercritical turbine-generator unit with Simens technology. Based on vibration diagnosis and treatment for more than 10 units, some typical vibration faults were summarized, such as the vibration fluctuation of the high pressure (HP) rotor, abnormal vibration increases of the No.3 bearing pedestal and large vibration of the exciter rotor during its critical speed range. The vibration characteristics and the causes of faults and countermeasures were analyzed. Three applications for further illustration were given. The vibration fault identification method, control measures, and applications can provide a reference for vibration diagnoses and treatment of same type units. 展开更多
关键词 1 000-MW ultra-supercritical unit VIBRATION single bearing support rotor thermal unbalance rotor dynamic thermal balance
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