Title:
STRUCTURE OF A SUPERHEATER
Document Type and Number:
WIPO Patent Application WO2006070075
Kind Code:
A3
Abstract:
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 (Tk2), 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.
Inventors:
PETAENEN PERTTI (FI)
MAEKELAE KARI (FI)
KUUKKANEN KARI (FI)
KOKKO ARI (FI)
MAEKELAE KARI (FI)
KUUKKANEN KARI (FI)
KOKKO ARI (FI)
Application Number:
PCT/FI2005/050489
Publication Date:
December 07, 2006
Filing Date:
December 27, 2005
Export Citation:
Assignee:
KVAERNER POWER OY (FI)
PETAENEN PERTTI (FI)
MAEKELAE KARI (FI)
KUUKKANEN KARI (FI)
KOKKO ARI (FI)
PETAENEN PERTTI (FI)
MAEKELAE KARI (FI)
KUUKKANEN KARI (FI)
KOKKO ARI (FI)
International Classes:
F22B31/00; F22B37/10; F22G3/00
Foreign References:
| DE10131524A1 | 2003-01-23 | |||
| GB2263330A | 1993-07-21 | |||
| US6136117A | 2000-10-24 | |||
| US5881802A | 1999-03-16 | |||
| US4304267A | 1981-12-08 |
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