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
Key words
air cooler/stabilization tower/corrosion/hot dip zinc/chloride ion
维普
万方数据