CAJ | 학술논문

常压塔是炼化厂常减压装置中的关键设备，常压塔顶冷凝冷却系统的腐蚀问题影响着装置的长周期安全运行。特别是近些年来随着炼化厂原油的硫含量越来越高，常压塔顶冷凝冷却系统腐蚀失效事故越发频繁。文中通过一起常压塔顶冷却系统管线腐蚀检验案例，结合生产工艺，分析了该管线内外腐蚀的原因，并提出了定期检验过程中制订有针对性的检验方案、重视宏观检验、加强腐蚀介质监测和有针对性的厚度检测等应对措施，效果明显。
상압탑시련화엄상감압장치중적관건설비，상압탑정냉응냉각계통적부식문제영향착장치적장주기안전운행。특별시근사년래수착련화엄원유적류함량월래월고，상압탑정냉응냉각계통부식실효사고월발빈번。문중통과일기상압탑정냉각계통관선부식검험안례，결합생산공예，분석료해관선내외부식적원인，병제출료정기검험과정중제정유침대성적검험방안、중시굉관검험、가강부식개질감측화유침대성적후도검측등응대조시，효과명현。
Atmospheric tower is the key equipment of the atmospheric and vacuum distillation units of the refinery ,and over-head condensing atmospheric corrosion problems affect the long period safe operation .Especially in recent years ,with the increas-ing of the sulfur content of crude oil ,overhead condensing cooling system corrosion failure incidents become more frequent .To-gether with the piping corrosion inspection case of the atmospheric cooling system overhead and the production process ,the rea-sons for the internal and external corrosion were analyzed ,and the suggestions of periodic inspection with respect to inspection scheme,macro inspection,corrosive medium enhancement ,and thickness detection were proposed ,thus achiving obvious effects .