Boiler system comprising an integrated economizer
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United States of America Patent
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Feb 5, 2019
Grant Date -
Dec 17, 2015
app pub date -
Jun 12, 2015
filing date -
Jun 12, 2014
priority date (Note) -
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Abstract
A boiler system and methods for heating a fluid are disclosed, in particular for heating water for producing steam. The boiler comprises an economizer module integrated on the top of a furnace, and is in communication with the furnace to receive heat and/or hot combustion gases therefrom. The economizer comprises tubes receiving the fluid, such as feedwater, to be pre-heated and providing it to the furnace comprising a combustion chamber producing heat and hot combustion gases. The fluid is pre-heated by circulating first through the pre-heating tube assembly of the economizer module before entering the furnace module where the fluid is further heated by the combustion chamber. Since the economizer is located on the furnace module, the boiler does not have a large footprint compared to a regular boiler system without an economizer. Due to the total integration of the economizer with the furnace, the boiler system has improved energy efficiency.
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