Combustion – Combustion products return structure – Recirculation about mixing or combustion chamber wall or baffle
Patent
1998-02-09
1999-11-16
Yeung, James C.
Combustion
Combustion products return structure
Recirculation about mixing or combustion chamber wall or baffle
431 8, 431 9, 431350, 431278, 431181, 239548, F23L 100
Patent
active
059846658
ABSTRACT:
A gas fired burner is provided for use in applications such as chemical process furnaces for process heaters in refineries and chemical plants, and the like. The burner is provided with a plurality of fuel gas inlets for enabling manipulation of the flame shape and combustion characteristics of the burner, based upon variation in the distribution of fuel gas between the various fuel gas inlets.
A combination pilot and flame holder for a burner, such as may be used in process heaters and furnaces for refineries, chemical plants and the like, is also provided. The pilot is mounted atop a supply pipe for premixed fuel and air, which is positioned in the bore of a burner quarl. The pilot includes a radially outwardly extending flange which is upstream of a surface combustion flame holder for establishing a radially directed surface combustion flame.
The present invention also provides a low-emissions burner and pilot system for use in such process heaters and furnaces.
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Benson Charles E.
Loftus Peter J.
Martin Richard R.
Pellizzari Roberto O.
Cocks Josiah
Gas Research Institute
Yeung James C.
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