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:
Jan. 04, 2011
Filed:
Jun. 22, 2009
Arthur P. Skelley, New Kensington, PA (US);
Alan L. Stehman, Pittsburgh, PA (US);
Steven G. Rendos, Lower Burrell, PA (US);
Arthur P. Skelley, New Kensington, PA (US);
Alan L. Stehman, Pittsburgh, PA (US);
Steven G. Rendos, Lower Burrell, PA (US);
Cannon Boiler Works, Inc., New Kensington, PA (US);
Abstract
A boiler conveys an exhaust gas stream to a heat recovery device. The heat recovery device includes an air straightener, a heat recovery unit or feedwater heater, and a catalyst assembly positioned between the air straightener and the feedwater heater. The catalyst assembly has a catalyst drawer or bed that holds a quantity of catalyst materials for removing contaminants from the exhaust gas stream. The air straightener has a plurality of baffles that are arranged in a manner that optimizes the performance of the catalyst drawer or bed. The baffles also prevent condensation from leaking from the feedwater heater into the boiler. The feedwater heater recovers a quantity of heat from the exhaust gas stream.