| 130t/h锅炉水冷壁爆管原因分析及处理措施 |
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| 引用本文： | 黄峥彬.130t/h锅炉水冷壁爆管原因分析及处理措施[J].发电设备,2008,22(1):49-52. |
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| 作者姓名： | 黄峥彬 |
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| 作者单位： | 汕头热电一厂,广东,汕头,515000 |
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| 摘 要： | 对汕头热电一厂4号锅炉水冷壁管频繁爆管进行了检查分析,根据水冷壁管爆口外观特征、金相检验、垢样化验和机组水质检查结果,可确认垢下碱性腐蚀是造成爆管的主要原因。阐述了垢的形成及垢下碱性腐蚀的机理。在更换失效管段以后,通过改造除氧器及加强水质化学监控等措施,有效地解决了水冷壁爆管问题。
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| 关 键 词： | 能源与动力工程 锅炉 水冷壁 爆管 垢下碱性腐蚀 给水 除氧 水质监控 |
| 文章编号： | 1671-086X（2008）01-0049-04 |
| 修稿时间： | 2007年6月5日 |
Cause Analysis and Remedy for Tube Burst Failures Occurring to a 130 t/h Boiler Water Wall |
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| HUANG Zheng-bin.Cause Analysis and Remedy for Tube Burst Failures Occurring to a 130 t/h Boiler Water Wall[J].Power Equipment,2008,22(1):49-52. |
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| Authors: | HUANG Zheng-bin |
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| Abstract: | By way of visual checking and metallographic examination on the rupture surfaces of tubes of boiler No.4 in Shantou No.1 Thermal Power Plant and based on water quality analysis,under-deposit alkali corrosion has been found to be the main cause of tube burst failures frequently occurring to the boiler.The formation process of deposit and the mechanism of under-deposit alkali corrosion are illustrated.After replacement of the failed tube section,the problem has been effectively solved by altering relevant deaerators and enhancing water quality control. |
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| Keywords: | energy and power engineering boiler water wall tube burst under-deposit alkali corrosion feed-water deaeration water quality control |
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