| 1025t／h锅炉冷灰斗处水冷壁管爆漏分析 |
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| 引用本文： | 郭臣,张仁奇.1025t／h锅炉冷灰斗处水冷壁管爆漏分析[J].贵州电力技术,2010(6):13-14. |
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| 作者姓名： | 郭臣 张仁奇 |
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| 作者单位： | 贵州电力试验研究院,贵州贵阳550002 |
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| 摘 要： | 贵州某电厂一台1025t／h锅炉在运行过程中发生前墙冷灰斗处的水冷壁管爆破，采用了金相组织观察，化学成分分析及硬度试验等方法分析了水冷壁爆管的原因。结果表明：水冷壁管的强度偏低、焊接熔合线处过大的附加应力是爆破产生的主要原因。
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| 关 键 词： | 水冷壁 附加应力 爆管 |
Analysis on bursting in water cooled wall tubes of ash hopper of a 1025t/h boiler |
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| Guo Chen,Zhang Renqi.Analysis on bursting in water cooled wall tubes of ash hopper of a 1025t/h boiler[J].Guizhou Electric Power Technology,2010(6):13-14. |
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| Authors: | Guo Chen Zhang Renqi |
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| Affiliation: | ( Guizhou Electric Power Testing＆Research Institute, Guiyang 550002 Guizhou, China) |
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| Abstract: | The waterwall tubes of ash hopper in front wall of 1025t/h boiler burst during operation in a power plant in Guizhou. In this paper, the reasons of tube - bursting have been analyzed by means of metallographic analysis, chemical elements analysis , hardness testing, etc. The results show that the low cross - intensity of waterwall tubes and excessive additional stress in weld bonds are chief reasons of tube - bursting. |
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| Keywords: | waterwall additional stress tube - bursting |
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