富水电厂2号机的空气冷却器和上、下导轴承冷却器运行6年左右,就先后发生针孔状的穿孔腐蚀或均匀的脱锌腐蚀;1号机的空气冷却器管运行9年,也因腐蚀损坏而被迫全部更换。为了延长冷却器的寿命,保证机组安全运行,该厂于1979年5月在两台机的冷却器管路上采用加硫酸亚铁成膜的保护方法,经过5年半的运行实践证明,保护效果良好,不仅能有效 Air Cooler 2 machine air cooler and the upper and lower guide bearing cooler operation 6 years or so, there have been punctured perforation corrosion or uniform dezincification corrosion; No. 1 machine air cooler tube operation for 9 years , But also due to corrosion damage and forced to replace all. In order to extend the life of the cooler, to ensure the safe operation of the unit, the plant in May 1979 in the cooler of two machines with ferrous sulfate added film protection method, after 5 and a half years of operation proved that the protective effect Good, not only effective