电厂锅炉水冷壁爆管原因分析
Explosion Cracking Reason Analysis of Water-cooling Tube of Power Plant Boiler
摘 要
采用化学成分分析和金相检验等方法对发生爆管的电厂锅炉水冷壁管进行了综合分析。结果表明: 可能是由于管内存在异物堵塞等原因造成短时急剧过热，从而使材料的高温强度降低发生开裂。
锅炉
水冷壁管
15CrMoG钢
爆管
剥落开裂
短时过热
power plant
boiler
water-cooling tube
15CrMoG steel
tube explosion
exfoliation cracking
short-time overheating
Abstract
A comprehensive analysis which was based on chemical composition analysis and metallographic examination was made on the exfoliation cracking of water-cooling tube of power plant boiler. The result showed that the exfoliation cracking of water-cooling tube was mainly caused by shout-time sudden overheating because of the reasons of foreign matter blockage and so on, which made the strength of the matrix material decrease drastically and induced the exfoliation cracking of the tube.
中图分类号 TG142.73
所属栏目 质量控制与失效分析
基金项目
收稿日期 2009/7/15
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备注王新娟(1981-),女,助理工程师，学士。
引用该论文: WANG Xin-juan,YANG Wen-bin. Explosion Cracking Reason Analysis of Water-cooling Tube of Power Plant Boiler[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2010, 46(5): 329～331
王新娟,杨文彬. 电厂锅炉水冷壁爆管原因分析[J]. 理化检验－物理分册, 2010, 46(5): 329～331
被引情况:
【1】刘广兴,犹公,张虔,龚巍,申雷, "锅炉冷灰斗水冷壁管泄漏原因分析",理化检验－物理分册 49, 119-122(2013)
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参考文献
【1】GB 5310-1995 高压锅炉用无缝钢管[S]．
【2】GB/T 10561-2005 钢中非金属夹杂物含量的测定标准评级图显微检验法[S]．
【3】周昕. 火力发电厂锅炉受热面失效分析与防护[M]. 北京: 中国电力出版社,2004．
【2】GB/T 10561-2005 钢中非金属夹杂物含量的测定标准评级图显微检验法[S]．
【3】周昕. 火力发电厂锅炉受热面失效分析与防护[M]. 北京: 中国电力出版社,2004．
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