| 柴油加氢装置高压换热器管束断裂原因与防护 |
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| 引用本文： | 常培廷,陈文武,单广斌,黄贤滨,韩磊,殷雪峰.柴油加氢装置高压换热器管束断裂原因与防护[J].材料保护,2019,52(3):127-133. |
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| 作者姓名： | 常培廷 陈文武 单广斌 黄贤滨 韩磊 殷雪峰 |
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| 作者单位： | 中国石化集团公司青岛炼油化工有限责任公司,山东青岛,266500;中国石油化工股份有限公司青岛安全工程研究院化学品安全控制国家重点实验室,山东青岛,266071 |
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| 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。
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| 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 |
Failure Analysis and Protection Measures of Tube Bundle of High Pressure Heat Exchanger in Diesel Hydrotreating Unit |
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| CHANG Pei-ting,CHEN Wen-wu,SHAN Guang-bin,HUANG Xian-bin,HAN Lei,YIN Xue-feng.Failure Analysis and Protection Measures of Tube Bundle of High Pressure Heat Exchanger in Diesel Hydrotreating Unit[J].Journal of Materials Protection,2019,52(3):127-133. |
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| Authors: | CHANG Pei-ting CHEN Wen-wu SHAN Guang-bin HUANG Xian-bin HAN Lei YIN Xue-feng |
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| Affiliation: | (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) |
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| Abstract: | 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. |
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| Keywords: | high pressure heat exchanger stress corrosion cracking failure analysis chloride corrosion protection |
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