电站锅炉省煤器管爆管原因分析  

Analysis on Burst Tube of Economizer Tube in Power Plant Boiler

作　　者：孙澎[1] 孙涛[1] 

机构地区：[1]国网河北省电力公司电力科学研究院,河北石家庄050021

出　　处：《铸造技术》2017年第9期2162-2164,共3页Foundry Technology

摘　　要：通过宏观分析、化学成分分析、金相组织检验和扫描电镜断口分析,对某电站锅炉省煤器管爆管的原因进行了综合分析。结果表明,导致爆管发生的直接原因是减薄所致,减薄和爆管根本原因是氧腐蚀。A comprehensive analysis which was based on macro-structure inspection, chemical composition analysis, metallurgical structure and fracture morphology observation was made on burst tube of economizer tube in power plant boiler. The results show that the direct cause of burst tube is tube thinning, the root cause of tube thinning and burst tube is oxygen corrosion.

关 键 词：省煤器 减薄 爆管 氧腐蚀 

分 类 号：TM621.2[电气工程—电力系统及自动化]