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Mixed air and gas nozzle for gas burners, in particular burners of low thermal output for firing kilns
Mixed air and gas nozzle for gas burners, in particular burners of low thermal output for firing kilns
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机译:用于燃气燃烧器的空气和气体混合喷嘴,特别是用于窑炉的低热输出燃烧器
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摘要
The nozzle comprises an axial chamber (23) provided in a first part (21) and into which the fuel gas is fed, and a chamber (24) which surrounds the chamber (23) and into which air is fed; the two chambers (23) and (24) are separated from the combustion chamber (4) by a front plate (5) in which three series of apertures are provided, namely a series of peripheral apertures (31) arranged to pass secondary air with a velocity having an axial and tangential component, a second series of apertures (32) disposed on a more inner circumference and arranged to pass primary air and also having an axial and possibly also tangential component, and a third series of more central apertures arranged to pass gas; by virtue of said apertures the burner thermal output is adjustable to the extent of enabling it to be varied within a very wide range of values.
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