低压加热器铜合金腐蚀原因分析及对策

Analysis of corrosive causes for copper alloy in low-pressure heater

南京热电厂5#机组凝结水在流经低压加热器后,水中含铜量明显升高,针对这一问题,从金属电化学腐蚀的原理出发,探讨了低压加热器铜管腐蚀的原因,提出了降低腐蚀的方法,并进行了卓有成效的实践。

The copper concentration goes up distinctly after the condensate of set No.5 in Nanjing Thermal Power Plant passing through the low-pressure heater. In order to resolve this problem, the causes for that from the view of metallic electrochemical theories, have been discussed, and the methods to reduce the corrosion in practice are presented. The practice proves to be efficient.