气相缓蚀技术在热力设备停用保护中的应用

Application of Vapor Phase Corrosion Inhibitor Technology in Thermal Equipment Shut Down Protection

利用加热的压缩空气使气相缓蚀剂挥发或分解出有效成分,并携带进入热力系统,使金属表面处于钝化状态,有效减缓停用期间的氧腐蚀。该方法具有快速、有效、经济的优点,适用于不同容积、结构复杂的钢制热力设备短期和长期停用保护,解决了直接空冷机组空冷岛停用保护的难题。

The volatile of vapor phase corrosion inhibitor was carried into the thermal system through heated compressed air,which tend to passivate the metal surface and could effectively alleviate the oxygen corrosion during the period of shutdown protection. The method is speedy,efficient and cost-effective,and is suitable for short-term and long-term protection of steel thermal equipment with different volume or complex structure. The protection problem of air cooling island of direct air cooling unit was solved by applying this method.