| 超超临界锅炉末级过热器T92钢管爆管原因分析 |
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| 引用本文： | 马元坤.超超临界锅炉末级过热器T92钢管爆管原因分析[J].理化检验(物理分册),2013(12):834-837. |
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| 作者姓名： | 马元坤 |
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| 作者单位： | 神华国能宁夏煤电有限公司,灵武750041 |
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| 摘 要： | 通过宏观检查、化学成分分析、金相检验及力学性能测试等方法，对某电厂超超临界锅炉末级过热器T92钢管爆管原因进行了分析。结果表明：爆管是由管子内壁局部位置少量氧化皮脱落引起的长时过热导致的，并针对爆管原因提出了预防措施。
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| 关 键 词： | T92钢管 长时过热 氧化皮脱落 |
Causes Analysis on Bursting of T92 Steel Tube of Finishing Superheater in Ultra Supercritical Boiler |
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| MA Yuan-kun.Causes Analysis on Bursting of T92 Steel Tube of Finishing Superheater in Ultra Supercritical Boiler[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2013(12):834-837. |
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| Authors: | MA Yuan-kun |
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| Affiliation: | MA Yuan-kun (Shenhua Guoneng Ningxia Coal and Electricity Co, , Ltd. , Lingwu 750041, China) |
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| Abstract: | By means of visual observation, chemical compositions analysis, metallographic examination and mechanical properties testing, the bursting causes for T92 steel tube of finishing superheater in ultra supercritical boiler were analyzed. The results show that the tube-bursting was due to long term overheat, as a result of a little oxide skin peeling-off from the local position of inner wall of the tube. Preventive measures were proposed in view of the bursting reasons. |
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| Keywords: | T92 steel tube long term overheat oxide skin peeling-off |
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