SUN Lijun, NI GuijieZhengzhou Electric Power Senior Professional College. CAUSE ANALYSIS OF CRIPPLING FAILURE FOR MP 10TH DIAPHRAGM AND BLADES OF 300MW STEAM TURBINE IN ONE POWER PLANT AND DISPOSAL THEREOF[J]. Thermal power generation, 2010, 39(10): 80-81.
SUN Lijun, NI GuijieZhengzhou Electric Power Senior Professional College. CAUSE ANALYSIS OF CRIPPLING FAILURE FOR MP 10TH DIAPHRAGM AND BLADES OF 300MW STEAM TURBINE IN ONE POWER PLANT AND DISPOSAL THEREOF[J]. Thermal power generation, 2010, 39(10): 80-81.DOI:
某台300MW机组汽轮机隔板及叶片断裂事故原因分析及处理
摘要
针对300 MW机组汽轮机中压第10级隔板及叶片断裂事故进行了断裂叶片断口形态分析
认为断裂事故的主要原因是制造过程中
静叶定位焊接工艺不佳
焊接质量较差所致。对此提出了更换备用中压转子的处理方案
并根据此次事故对同型运行机组提出了改进建议。
Abstract
Directing against the crippling failure of MP 10th diaphragm and blades of steam turbine equipped for a 300MW unit
the occurring process and damage degree of said failure have been presented
the fracture form of crippled blades and the causes resulting in crippling failure being analysed
and a disposal scheme for said failure being put forward
and recommendations for improving similar units in operation being suggested based on this failure.