Leakage Failure Analysis of High-Pressure Superheater for Waste Heat Boiler of Gas-steam Combined Cycle Unit

Leakage failure of high-pressure superheater for waste heat boiler of gas-steam combined cycle unit was analyzed by metallographic analysis, scanning electron microscope, tensile property analysis and X-ray fluorescence spectrum. The results show that: The main cause of leakage failure of high-press...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2360; no. 1; pp. 12007 - 12011
Main Authors Wei, Shang, Xiaotao, Xia, Kun, Lu, Xinying, Liu
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2022
Subjects
Boilers
Corrosion
Failure analysis
High pressure
Leakage
Physics
Waste heat
X-ray fluorescence
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Summary:Leakage failure of high-pressure superheater for waste heat boiler of gas-steam combined cycle unit was analyzed by metallographic analysis, scanning electron microscope, tensile property analysis and X-ray fluorescence spectrum. The results show that: The main cause of leakage failure of high-pressure superheater is under-deposit corrosion caused in long-term operation process. In view of the under-deposit corrosion causes of high-pressure superheater, preventive measures are put forward.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2360/1/012007