摘要
硫磺回收装置蒸汽过热器E2420原设计采用304H材质,但E2420的使用环境容易形成连多硫酸腐蚀,继而造成设备泄漏。后将E2420改为Cr-Mo(12Cr1MoV)钢材质,并修改了保护蒸汽过热器工艺连锁。实际运行情况表明,上述措施很好的解决了E2420腐蚀泄漏的问题。
Polythionic Acid Stress Corrosion Cracking may occur when normal operation of the steam heater E2420 which is made with stainless steels type 304H.To avoid Polythionic Acid Stress Corrosion Cracking,the steel type be changed to stainless steels type 12Cr1MoV and the Safeguarding system logic of E2420 be changed also.
出处
《内蒙古石油化工》
CAS
2014年第6期87-88,共2页
Inner Mongolia Petrochemical Industry
关键词
蒸汽过热器
材质
连多硫酸
腐蚀
联锁
Steam Heater
Material
Polythionic Acid
Stress Corrosion Cracking
Safeguarding System
