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Cause analysis and countermeasure for crack of draft fan blade of 300 MW boiler
Author(s): 
Pages: 26-28
Year: Issue:  4
Journal: Hunan Electric Power

Abstract: 某电厂300 MW锅炉在运行中发生引风机叶片断裂事故.经分析,其直接原因是振动引起疲劳失效,引风机长期在失速、喘振不稳定工作区运行是引起叶片振动疲劳破坏的主要原因.通过降低烟气系统阻力等措施,可有效防止类似事故的发生.
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