The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2003
Filed:
May. 02, 2002
Applicant:
Inventors:
Assignee:
Kvaerner Power Oy, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22G 5/04 ;
U.S. Cl.
CPC ...
F22G 5/04 ;
Abstract
In a soda recovery boiler, flue gases are led through a so-called economizer ( ) to recover heat from flue gases. The flue gases are cooled in the last stage ( ) of the economizer ( ) with a circulation water cooler ( ) for flue gases, separate from the supply water system of the boiler. The circulation water cooler ( ) for flue gases is used for preheating combustion air.