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:
May. 07, 2013
Filed:
Sep. 30, 2009
Mikhail Maryamchik, Fairlawn, OH (US);
Kiplin C. Alexander, Wadsworth, OH (US);
Mark C. Godden, Mogadore, OH (US);
David L. Kraft, Massillon, OH (US);
Mikhail Maryamchik, Fairlawn, OH (US);
Kiplin C. Alexander, Wadsworth, OH (US);
Mark C. Godden, Mogadore, OH (US);
David L. Kraft, Massillon, OH (US);
Babcock & Wilcox Power Generation Group, Inc., Barberton, OH (US);
Abstract
A circulating fluidized bed (CFB) boiler comprising a reaction chamber. A bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. At least one non-mechanical valve, which includes an opening between the CFB and BFB and independently controlled fluidizing means located both upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling the solids discharge from the BFB to the CFB. The elevation of the bottom of the opening is at or above the elevation of the fluidizing means. A flow control barrier may be located downstream of the opening.