辽宁石油化工大学学报2012，Vol.32Issue(3)：54-57,62,5.DOI:10.3696/j.issn.1672-6952.2012.03.014
换热器管束腐蚀穿孔失效原因分析
Failure Analysis on Corrosion Failure of Heat Exchanger and Proposal
李俊俊 1刘峰1
作者信息
- 1. 辽宁石油化工大学机械工程学院,辽宁抚顺113001
- 折叠
摘要
Abstract
Failure of heat exchanger at a wash of circulating water factory was analyzed by optical microscope, X-ray fluorescence spectrometer, X-ray diffraction (XRD), electrochemical test analysis method. The results show that chemical composition of heat exchanger didn't meet the standard of 20# steel. Due to the surface of the vascular bundles scaling there is a serious corrosion, inside surface of tubes exist iron oxide layer which led to the under-deposition corrosion because different concentration of oxygen inside and outside deposition form corrosion battery. Therefore, under-deposit corrosion is the main the main cause of tubes perforation.关键词
换热器/穿孔/腐蚀/失效Key words
Heat exchanger/ Perforation/ Corrosion/ Failure分类
能源科技引用本文复制引用
李俊俊,刘峰..换热器管束腐蚀穿孔失效原因分析[J].辽宁石油化工大学学报,2012,32(3):54-57,62,5.
