摘要
对热高分气与混氢换热器断裂管束进行了失效原因分析。结果表明,氯化物应力腐蚀开裂是管束失效的主要原因,氢的存在及管板与管束在溶液环境组成的腐蚀电池加快了该腐蚀的速度。针对腐蚀原因采取了优化设计和制造、安装和操作等腐蚀防护措施,效果良好。
A series of tests were carried out to analyze the failure reasons of the high pressure heat exchanger tubes. Results showed that chloride stress corrosion cracking( SCC) was the main cause of tube bundle failure. Besides,it was accelerated by the presence of hydrogen and the formed corrosion cell between tube sheet and tube bundle in the solution environment. Finally,the corrosion protection measures such as optimizing the design,manufacture,installation and operation were adopted,which was proved to be effective.
作者
常培廷
陈文武
单广斌
黄贤滨
韩磊
殷雪峰
CHANG Pei-ting;CHEN Wen-wu;SHAN Guang-bin;HUANG Xian-bin;HAN Lei;YIN Xue-feng(SINOPEC Qingdao Oil Refining Chemical Co., Ltd., Qingdao 266500,China;State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering,Qingdao 266071,China)
出处
《材料保护》
CAS
CSCD
北大核心
2019年第3期127-133,共7页
Materials Protection
基金
中国石化科研项目"基于风险的炼化装置智能管控技术研究"(318021-8)资助
关键词
高压换热器
应力腐蚀开裂
失效分析
氯化物
防护措施
high pressure heat exchanger
stress corrosion cracking
failure analysis
chloride
corrosion protection
