Importance

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Abstract

Recuperator burner for industrial furnaces with a central fuel tube which ads the gaseous fuel into a combustion chamber, which tube is concentrically surrounded by a combustion-air supply tube, the outer surface area of the combustion-air supply tube in the area of the recuperator being able to be applied with the exhaust gases which are guided in counterflow through an outer jacket tube and in which combustion-air supply tube there is arranged a first tubular separation wall. The separation wall first guides the combustion-air stream on the way to the combustion chamber along the central fuel tube up to the outlet-side end range of the fuel tube and then redirecting the combustion-air stream in reversed direction. The first tubular separation wall is surrounded concentrically by a second tubular separation wall, which second tubular separation wall with the outer wall of the fuel tube forms an air-tight closure at the outlet-side end and guides the combustion-air stream back via the recuperator through the annular channel to the outlet end, the annular channel being formed with the tubular wall of the combustion-air supply tube.

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First Claim