Corrosion of the Convectivc Pipes of Heater by Low Tempreture and Dew Poi

Based on analyzing corrosive formation and influencing factor and the relation between corrosion velosity and pipewall tempreture, the paper discusses such specific measures of corrosion protection as tempreture increasement of pipewall, installation of air preheater, development of heat-resisting and corrosion-resisting metal material and treatment of piping surface, etc.