柴油加氢装置换热器出口管线的失效原因
Failure Reason of the Heat Exchanger Outlet Line of Diesel Hydrogenation Unit
摘 要
对某公司柴油加氢装置加氢反应流出物/原料油换热器出口管线的泄漏问题进行了系统的分析与测试。结果表明：管道开裂机理为奥氏体不锈钢的氯化物应力腐蚀开裂。针对管道失效原因提出了相应的防治措施。
失效分析
柴油加氢
chloride stress corrosion cracking (CLSCC)
failure analysis
diesel hydrogenation
Abstract
The leakage problem of the hydrogenation reaction effluent/raw oil heat exchanger outlet pipeline of a diesel hydrogenation unit of a company was systematically analyzed and tested. The results show that the mechanism of pipe cracking was chloride stress corrosion cracking of austenitic stainless steel. Corresponding prevention measures were proposed for the pipeline failure cause.
中图分类号 TG17 DOI 10.11973/fsyfh-202001014
所属栏目 失效分析
基金项目
收稿日期 2017/12/15
修改稿日期
网络出版日期
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引用该论文: SHAN Guangbin,LIU Xiaohui,LI Guijun,HUANG Xianbin,QU Dingrong. Failure Reason of the Heat Exchanger Outlet Line of Diesel Hydrogenation Unit[J]. Corrosion & Protection, 2020, 41(1): 76
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参考文献
【1】CRAGNOLINO G,MACDONALD D. Intergranular stress corrosion cracking of austenitic stainless steel at temperatures below 100 C-A review[J]. Corrosion,1982,38(8):406-24.
【2】TSENG C M,TSAI W T. Environmentally assisted cracking behavior of single and dual phase stainless steels in hot chloride solutions[J]. Materials chemistry and physics,2004,84(1):162-70.
【3】杨宏泉,段永锋. 奥氏体不锈钢的氯化物应力腐蚀开裂研究进展[J]. 全面腐蚀控制,2017,31(1):13-19.
【2】TSENG C M,TSAI W T. Environmentally assisted cracking behavior of single and dual phase stainless steels in hot chloride solutions[J]. Materials chemistry and physics,2004,84(1):162-70.
【3】杨宏泉,段永锋. 奥氏体不锈钢的氯化物应力腐蚀开裂研究进展[J]. 全面腐蚀控制,2017,31(1):13-19.
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