STRUCTURE OF A SUPERHEATER

摘要

A method for reducing corrosion of a superheater (6) of a steam boiler, which superheater (6) comprises a superheater piping (7), which comprises a steam pipe (9), where the steam (S) to be superheated is directed to. The steam pipe (9) is separated by a protective shell (8), whose surface settling in the flue gas space (G) has a temperature that rises above an upper critical temperature (T_k2), above which temperature in the flue gas space the compounds from the fuel are substantially in a gaseous form. In addition, the invention relates to a superheater of a steam boiler and a circulating fluidized bed boiler.