CLUSTERED NOZZLE FOR GASIFICATION OR COMBUSTION AND ITS INDUSTRIAL APPLICATION
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United States of America Patent
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Issued Date -
Mar 27, 2008
app pub date -
Aug 15, 2007
filing date -
Sep 27, 2006
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Abandoned
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Abstract
This invention relates to a kind of clustered nozzle for gasification or combustion and its industrial applications. The clustered nozzle comprises a body case (5) and a plurality of nozzles (11) in the body case (5). The nozzle (11) includes an outer cannula (3) and an inner cannula (4) inside the outer cannula (3), a lower tubesheet (6), an upper tubesheet (7) and a cooling chamber (13). Compared with traditional coaxial double-pipe nozzles (e.g., dual-channel nozzles, triple-channel nozzles and multi-channel nozzles), the clustered nozzle for gasification or combustion has the following advantages: the length of combustion flame is shorter and the shape of flame is approximately rectangular, which help to protect the lower firebricks of the gasifier, thus prolonging their working life; the distribution of the residence time is narrower, which helps to increase the conversion rate of carbon; and the nozzle is properly-structured, which helps to prolong its working life.
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