Corrosive and Sedimentary Characteristics of Flow Path in Ultra-Supercritical Turbine and Countermeasures
There are three typical types of scaling,deposition and corrosion in the flow path of ultra-supercritic turbine,i.e.iron scale deposits and sodium salt deposits in medium-high pressure cylinder,and the chloride ion deposition and corrosion in low pressure cylinder.Based on the in-depth analysis of their typical characteristics,causative mechanism and the hazard levels,this paper puts forward the key points,optimization approaches and preventive measures of cycle chemical control.