Material and Dynamics Analysis of Low-Temperature Superheater Pipe Bulging Accident in Utility Boiler

Zhong Yue; Yue Shan Zhang

doi:10.4028/www.scientific.net/AMR.507.117

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 507Material and Dynamics Analysis of Low-Temperature...

Material and Dynamics Analysis of Low-Temperature Superheater Pipe Bulging Accident in Utility Boiler

Abstract:

Pipe failure accidents (bulging, bursting) are frequent in thermal power plants, and severely influence the safe and economic running. The authors analyzed the possible causes and features of low-temperature superheater pipe bulging. Taking the low-temperature superheater pipe bulging accident in a power plant for an example, the authors conducted macroscopic topography analysis, running environment analysis, metallurgical analysis, chemical composition analysis and strength analysis of the bulged pipe. Paper’conclusion was that the cause of low-temperature superheater pipe bulging wasn’t superheating, and the cause of bulging was flame straightening of the pipe during installation. The paper's innovation is material and dynamics analysis of the accident cause.

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Periodical:

Advanced Materials Research (Volume 507)

Pages:

117-122

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.507.117

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Online since:

April 2012

Authors:

Zhong Yue, Yue Shan Zhang

Keywords:

Bulging, Dynamic Analysis, Failure, Material, Utility Boiler

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References

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