Keeping corrosion at bay

Huvuddokument

Corrosion is the natural enemy of steam power plants. It nibbles away at pipes, turbine blades, and rotors. Because there is no separation between the gas and liquid phase in supercritical and ultra-supercritical power stations, anions with a corrosive effect find their way into the water-steam cycle and cause serious damage there. Their concentrations need to be continuously monitored, in fact in the ultratrace range. Three new ultra-supercritical blocks in the Linkou Thermal Power Plant as well as two new blocks in the Talin Thermal Power Plant, both situated in Taiwan, are being equipped with Metrohm ion chromatography systems for this purpose.