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:
Oct. 25, 2011
Filed:
Apr. 11, 2008
Eric M. Warren, Medina, OH (US);
Kevin A. Larson, Clinton, OH (US);
Thomas A. Laursen, Canton, OH (US);
Christopher J. Thompson, Cuyahoga Falls, OH (US);
Shan A. Shanmugavel, Wadsworth, OH (US);
Eric M. Warren, Medina, OH (US);
Kevin A. Larson, Clinton, OH (US);
Thomas A. Laursen, Canton, OH (US);
Christopher J. Thompson, Cuyahoga Falls, OH (US);
Shan A. Shanmugavel, Wadsworth, OH (US);
Babcock & Wilcox Power Generation Group, Inc., Barberton, OH (US);
Abstract
A method and apparatus effectively bypasses flue gas through or around selected boiler convection heat transfer tube banks within a new or existing boiler flue. Heat transfer tubes are removed, or omitted in the design of a new boiler flue, forming one or more voids at one or more locations within the tube banks. A bypass flue or conduit is formed within each void, for example using steel plates, along with existing flue walls, or using an integral sleeve. A wall of the bypass flue may include water or steam-cooled tubes. Dampers may be installed at either end of or within the bypass flue to control the amount of flue gas directed through each bypass flue.