Heat recovery device for a boiler

Details Heat recovery device for a boiler Heat recovery device for a boiler

2011-01-04

2011-01-04

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

C423S235000, C423S239100, C422S168000, C422S173000, C422S176000, C422S177000, C422S180000, C422S187000, C422S198000

Reexamination Certificate

active

07862787

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.

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