大容量汽轮机转子渐变式弯曲的动平衡补偿研究  

Research on Dynamic Balance Compensation for Progressive Bendingof Large Capacity Steam Turbine Rotor

作　　者：潘渤 邱鹏飞 张亚龙 何国安 张学延[1,2] PAN Bo;QIU Peng-fei;ZHANG Ya-long;HE Guo-an;ZHANG Xue-yan(Xi'an Xi're Saving&Emissions Control Technology Co.,Ltd.,Xi'an 710054,China;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710032,China;Shanxi Guohua Jinjie Energy Co.,Ltd.,Yulin 719319,China)

机构地区：[1]西安西热节能技术有限公司,西安710054 [2]西安热工研究院有限公司,西安710032 [3]陕西国华锦界能源有限责任公司,榆林719319

出　　处：《汽轮机技术》2021年第1期39-42,45,共5页Turbine Technology

基　　金：中国华能集团公司科学技术项目(HNKJ17-H34)。

摘　　要：大容量汽轮机转子出现的渐变式弯曲故障,通常采用现场实施动平衡补偿的办法进行处理,一般需要明确故障特征、精确诊断渐变式弯曲的类型、考虑空间振型的分解和动平衡补偿方案的现场可实施性。本研究归纳总结了转子渐变式弯曲的特征和诊断方法,给出了空间振型分解的方式,分别提出了具有永久式弯曲和热变量弯曲特征的一阶、二阶渐变式弯曲的动平衡补偿方法,并结合实例讲述了方法的计算方式和结合实际运行的思路,对转子动力学的实际应用理论和工程现场实施具有参考价值。The progressive bending fault of large capacity steamt urbine rotor is usually handled by the method of dynamic balance compensation on site.Generally,it needs to clarify the fault characteristics,accurately diagnose the type of progressive bending,and consider the decomposition of spatial vibration mode and the field feasibility of dynamic balance compensation.In this study,the characteristics and diagnosis methods of progressive bending of rotor are summarized,the mode decomposition method of spatial vibration mode is given,and the dynamic balance compensation methods of first-order and second-order progressive bending with permanent bending and thermal variable bending characteristics are put forward respectively.The calculation method and practical operation idea of the method are described with examples,and the practical application theory of rotor dynamics is given And the project site implementation has reference value.

关 键 词：汽轮机 轴系振动 渐变式弯曲 动平衡 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]