冷却塔风机叶片失效分析

Failure Analysis for Fan Blades of Cooling Tower

为查找冷却塔风机叶片脱层、剥落失效原因,对叶片失效部位形貌进行宏观分析,对叶片表面材质进行红外分析和能谱分析,此外,还分析了叶片表面和内部显微结构,以及叶片的结构设计和制造质量。测试分析表明,叶片制造质量不高和恶劣工况是叶片失效的主要原因。

To seek the cause of the failure on fan blades of cooling tower, the macroscopic analysis on the failure part of the fan blades, infrared analysis and energy spectrum analysis on the surface material of the fan blades were done by using inspection equipment. And microstructure of its surface and inter was inspected, structure design and manufacturing quality were also discussed. It was shown that the manufacturing defects and the complex and harsh working condition caused the failure.