正确使用工业锅炉湿法保养

探讨了停运但未放锅水锅炉被腐蚀的机理和防腐蚀的机理，指出锅炉湿法保养的实质是湿法碱性保养，因蒸汽锅炉由运行到停炉过程中锅水工作压力逐渐降低，与之相应的OH^-浓度也逐渐降低，在金属表面根本形不成碱性保护膜，从而造成氧腐蚀。为防止腐蚀，应按操作规程正确实施湿法保养。

Make Right Use of the Wet Maintenance of Industrial Boiler

This paperprobes into the corrosion m echanism and anticorrosion m echanism ofthe boilerthatis in stoppage and with the water in it,points out thatthe essence ofboiler's wetm aintenance is wetalkalim aintenance,the working pressure of boiler water w ill be gradually reduced in the course of that the steam boiler is from the operation state to the stoppage state,and the concentration of O H w illbe reduced gradually,too.So,on the m etalsurface the alkaline pro- - tection film can'tform ,resulting in the oxygen corrosion.In order to preventthe corrosion,the wetm aintenance should be used rightly.