| 220t/h锅炉过热器管破裂分析 |
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| 引用本文： | 周昌明.220t/h锅炉过热器管破裂分析[J].理化检验(物理分册),2004,40(4):199-201. |
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| 作者姓名： | 周昌明 |
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| 作者单位： | 四川锅炉厂,金堂,610401 |
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| 摘 要： | 某220t／h锅炉高温过热器管在试运行时发生破裂。采用金相检验、化学分析及热处理试验等手段对裂管进行了解剖分析。结果表明，由于有一种富碳物质堵塞了过热器管道，致使堵塞区域出现超温现象，并使该区域的管内壁生成一层共析组织，大大降低了管材的力学性能，最终导致管道破裂。
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| 关 键 词： | 锅炉 过热器 富碳物质 堵塞 管内壁渗碳 破裂分析 |
| 文章编号： | 1001-4012(2004)04-0199-03 |
EXPLOSION ANALYSIS OF SUPERHEATER PIPE OF 220t/h BOILER |
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| ZHOU Chang-min.EXPLOSION ANALYSIS OF SUPERHEATER PIPE OF 220t/h BOILER[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2004,40(4):199-201. |
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| Authors: | ZHOU Chang-min |
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| Abstract: | The high temperature superheater pipe of a 220t/h boiler exploded in the course of going to operation. The failed pipe was analysed by chemical composition analysis, metallographic exammation and heat treatment test. It was showed that a carbon-enriched meterial blockade the inside of the superheater pipe. The overheating phenomenon appeared in the blackge zone, and caused the carburizing in inner-wall of pipe. Thus, the mechanical property of pipe steel was reduced greatly. Finally the superheater pipe was ruptured. |
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| Keywords: | Carbon-enriched material Blockage Carburizing in inner-wall of pipe Rupture |
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