胡园青, 曾名劭. Comprehensive Treatment of High Temperature Corrosion of Water Wall of 700MW Supercritical Tangential-fired Boiler[J]. 2019, (3): 79-82. DOI: 10.16056/j.1005-7676.2019.03.023.
After a severe water-cooled wall high-temperature corrosion occurs in a 700 MW supercritical tangentiallg-fired boiler. Through adjusting a series of combustion schemes
water wall anticorrosive spraying
adding closing-to-wall air system
reducing the tangential diameter of burner and increasing the dynamic separator of coal mill etc
the reducing atmosphere on the wall is effectively improved and the corrosion of water wall pipe is restrained. It not only guarantees the safety of the boiler operation