Method and apparatus for controlling combustion air in a boiler

Details Method and apparatus for controlling combustion air in a boiler Method and apparatus for controlling combustion air in a boiler

1995-11-16

1998-01-20

Kamen, Noah P.

Liquid heaters and vaporizers

Plants

Feed water heaters

454229, 454236, 236 1G, F22B 3300

Patent

active

057091730

ABSTRACT:
A method for controlling combustion air in a boiler plant, where combustion air is supplied into a boiler located in a boiler building, comprises the steps of determining a ratio of air flow inside the building to air flow outside the building on the basis of at least the temperature of the outside air and of a load of the boiler; taking a first air flow from inside of the building in accordance with the ratio; taking a second air flow from outside the building in accordance with the ratio; the second air flow being at a certain temperature; and supplying a combined combustion air flow including the first and second air flows, in accordance with the ratio, to the boiler. Also an apparatus is provided for controlling combustion in boiler building permitting it to achieve the above steps.

REFERENCES:
patent: 3703919 (1972-11-01), Owens et al.
patent: 4245779 (1981-01-01), Ardiente
patent: 5007354 (1991-04-01), Uppstu

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