BOILER STRUCTURE
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United States of America Patent
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Issued Date -
Nov 4, 2010
app pub date -
Jun 19, 2008
filing date -
Jan 23, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A boiler structure capable of efficiently alleviating or preventing corrosion and slagging on furnace walls in a furnace is provided. A circulating firing boiler structure is configured so that fuel and combustion air supplied into a furnace (11) from burners (12) disposed at a plurality of positions on furnace walls (11a) forming a rectangular cross section are combusted so as to form a swirling flow. Air-supplying parts (20) are disposed near flame-affected portions of furnace wall surfaces, where flames formed by the respective burners (12) approach or contact, to form regions having a higher air concentration than the peripheries thereof.
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