超临界600 MW机组振动异常问题及治理措施  

Vibration Abnormal Problems and Treatment Measures of a Supercritical 600MW Unit

作　　者：房林铁 

机构地区：[1]中国大唐集团科学技术研究院有限公司华中分公司

出　　处：《电站系统工程》2018年第1期51-53,55,共4页Power System Engineering

摘　　要：针对某超临界600 MW机组在启动和运行过程中存在的几类振动异常问题,如转轴与水接触、高压进汽阀序不当、低压转子质量不平衡、9号轴承转轴振动波动等,进行了特征描述;通过现场测试与分析,阐明了引起这几种振动异常问题的原因;在此基础上对现场故障进行处理,最终将该机组的振动降至优良水平,保证了机组安全稳定运行。According to the several kinds of abnormal vibration problems in the process of starting and running of a supercritical 600 MW unit, such as the shaft in contact with water, high pressure intake value sequence improper, low pressure rotor mass unbalance, No.9 bearing shaft vibration, etc, the characteristics of abnormal vibrations are described.By testing and analyzing the vibration parameters, the causes of these abnormal vibration problems are clarified. On this basis, the vibration of the unit is finally reduced to a good level and the safe and stable operation of the units is ensured through handing the on-site faults.

关 键 词：振动异常 质量不平衡 高压进汽阀序 

分 类 号：TK223.6[动力工程及工程热物理—动力机械及工程]