大型汽轮发电机组非典型故障分析  

Case Analysis of Several Atypical Faults of Large Turbo-Generator Set

作　　者：张学延[1] 屈杰[1] 何国安[1] 朱蓬勃[1] 姜广政[1] 潘渤 ZHANG Xueyan;QU Jie;HE Guoan;ZHU Pengbo;JIANG Guangzheng;PAN Bo(Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710054,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054

出　　处：《中国电力》2020年第12期284-292,300,共10页Electric Power

基　　金：中国华能集团有限公司科技项目(HNKJ18-H16)。

摘　　要：介绍近年来因安装检修失误引起的大型汽轮发电机组几起“非典型”故障案例,分析故障特征、产生的原因和造成的后果。故障涉及轴向位移超限、汽轮机出力和热力参数突变、振动异常。这些案例的分析过程和经验教训可为以后机组的故障和事故分析以及安装检修提供参考。This paper presents several atypical fault cases of large steam generator set caused by installation or maintenance mistakes in recent years. The fault symptoms, causes and consequences are described and analyzed in details, which involved axial displacement overrun, sudden change of turbine output and thermal parameters, or abnormal vibrations. The analytical procedures and experience of the cases can provide reference for the analysis of faults and accidents as well as the installation and maintenance guide of the unit in the future.

关 键 词：汽轮发电机组 非典型故障 案例分析 安装检修 轴向位移 振动 

分 类 号：TM621[电气工程—电力系统及自动化]