Method and apparatus for controlling combustion air in a boiler plant
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United States of America Patent
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Jan 20, 1998
Grant Date -
N/A
app pub date -
Nov 16, 1995
filing date -
Nov 17, 1994
priority date (Note) -
Expired
status (Latency Note)
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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.
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