TCDF-33.5型300MW汽轮机首次大修中的故障处理

Fault Treatment during the First-time Overhaul of a Model TCDF-33.5 300 MW Steam Turbine

介绍了一台TCDF - 33 5型 30 0MW汽轮机首次大修中发现的主要故障 :轴系标高的变动和叶片围带发生裂纹。简要分析了问题发生的原因 ,并给出了现场的处理措施及进一步完善的建议。同型机组在国内数量较多 。

Described are the following main faults detected during the first-time overhaul of a model TCDF-33.5 300MW steam turbine: the change of shaft system elevation and cracks in blade shrouds. The underlying causes of the above faults are briefly analyzed with on-site treatment measures and proposals for further improvement being presented. As in China there exist many units of the above model, the information provided by the authors may serve as helpful reference data during their maintenance and overhaul.