稳定塔顶空冷器湿管束泄漏原因及解决对策  

Reasons and Solutions for Leakage of Wet Tube Bundle of Air Cooler in Stabilizing Tower

作　　者：杨丰华 杭佳宁 YANG Fenghua;HANG Jianing(CNOOC Ningbo Daxie Petrochemical Co.,Ltd.,Ningbo 315812,China;Shenyang ZKWELL Corrosion Control Technology Co.,Ltd.,Shenyang 110180,China)

机构地区：[1]中海石油宁波大榭石化有限公司,浙江宁波315812 [2]沈阳中科韦尔腐蚀控制技术有限公司,辽宁沈阳110180

出　　处：《化工管理》2024年第8期117-119,共3页Chemical Engineering Management

摘　　要：某石化企业催化裂解装置稳定塔顶空冷器运行6年后,其湿管束陆续出现泄漏情况。结合垢样化验分析及观察换热管腐蚀形貌,分析泄漏的原因是换热管外表面镀锌层由于腐蚀、冲刷消耗后,导致换热管基材受到氧化及氯离子腐蚀,并提出了相关的解决措施。After 6 years of operation of the overhead air cooler in a catalytic cracking unit in a petrochemical enterprise,its wet tube bundle has been leaking.Based on scale sample analysis and observation of the corrosion morphology of the heat exchange tube,it is analyzed that the leakage is caused by oxidation and chloride ion corrosion of the base material of the heat exchange tube due to corrosion and erosion of the galvanized layer on the outer surface of the heat exchange tube,and relevant solutions are proposed.

关 键 词：空冷器 稳定塔 腐蚀 热浸锌 氯离子 

分 类 号：TE96[石油与天然气工程—石油机械设备]