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高压氢气环境中使用双相钢空冷器的失效分析及处理探讨

Failure analysis of dual phase steel air cooler in high pressure hydrogen environment And treatment discussion
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摘要 自2013年以来,多次发生高压、加氢处理环境中使用双相钢REACs的失效事故。本文以国内某石化企业加氢裂化装置一台双相钢REAC管板开裂失效为例,失效原因分析结果表明双相钢空冷器管板开裂为氢脆引起,因此建议高压环境中(>1000 psig)的REACs双相钢材质替换为合金钢825材质。 since 2013,there have been many failure accidents of dual-phase steel REACs in high-pressure,hydrotreating environment.In this paper,the cracking failure of a dual-phase steel REAC tube plate in a hydrocracking unit of a domestic petrochemical enterprise is taken as an example.The failure reason analysis results show that the cracking of the tube plate of the air cooler in the dual-phase steel is caused by hydrogen embrittlement.Therefore,it is recommended that the REACs dual-phase steel material in the high-pressure environment(>1000 psig)be replaced by the alloy steel 825 material.
作者 潘贤魁 Pan Xiankui(Fujian Fuhaichuang Petrochemical Co.,LTD.,Zhangzhou Fujian 363216)
出处 《石化技术》 CAS 2020年第10期14-15,共2页 Petrochemical Industry Technology
关键词 双相钢 开裂失效 氢脆 材质升级 Duplex steel Cracking failure Hydrogen embrittlement Material upgrade
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