超高压135MW汽轮机叶片卷边事故的原因分析及改进措施  

Cause Analysis and Treatment of Blade Curling Accident in a 135MW Super-high Pressure Steam Turbine

作　　者：张金良[1] 邓德兵[2] 高琨[1] 王加勇[2] 张晋林[1] 赵清森[2] 

机构地区：[1]保德神东发电有限公司,山西保德036600 [2]苏州热工研究院有限公司,江苏苏州215004

出　　处：《发电设备》2016年第4期269-273,共5页Power Equipment

摘　　要：针对某超高压135 MW汽轮机叶片卷边事故,结合受损症状和启动过程进行了分析,发现叶片卷边为温态冲转过程中汽轮机进水所致。采取了相应的措施后问题得以解决。To clear the blade curling fault existing in a 135 MW super-high pressure steam turbine, an analysis was conducted on the damage status combined with the start-up process, which was found to be caused by the inflow of water into the steam turbine during hot start-up process. The problem was finally solved by taking appropriate measures.

关 键 词：汽轮机 叶片 通流特征面积 导汽管疏水 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]