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1. 发明公开

EP1482244A1 Counterflow fuel injection nozzle in a burner-boiler system 审中-公开
标题翻译： Egenem Berenner-Kessel-System中的Gegenstrom-Kraftstoffeinspritzdüse
公开(公告)号：EP1482244A1
公开(公告)日：2004-12-01
申请号：EP04460016.1
申请日：2004-05-31
申请人： AQUA-CHEM, INC.
发明人： Showers, Eugene , De Pijper, Ad , Labelle, Bernard , Brais, Normand , Bujold, Normand
IPC分类号： F23K5/00 , F23D14/22 , F23D14/24
CPC分类号： F23C7/004 , F23C2202/30 , F23D14/02 , F23D14/58
摘要： A counterflow fuel injection nozzle for injecting fuel is disclosed. The nozzle includes a nozzle wall having an interior surface that defines a nozzle interior, the interior for receiving a fuel therein. The nozzle further has a fuel passageway formed in the nozzle wall for distributing the fuel from the interior to a location exterior of the nozzle, the fuel distributed to the exterior location in a fuel flow injection direction. An airstream is provided in a prevailing air flow direction in the location exterior of the nozzle. At least one vector component of the fuel flow injection direction opposes at least one vector component of the prevailing air flow direction.
In this manner, by distributing fuel into an air flow at a counterflow angle, improved control of mixing of the fuel in the air is achieved. The counterflow nozzle may be included as part of a new burner or as a retrofit to existing burners in order to incorporate counterflow mixing. Advantageously, burner turndown ratios and stability are enhanced through the use of the counterflow fuel injection nozzles with burners that use FGR (i.e., have lower O 2 in combustion air supplied to the burner).
摘要翻译：喷嘴具有喷嘴壁，其具有限定喷嘴内部的内表面。形成在壁中的燃料通道将燃料从内部分配到燃料流注入方向上的喷嘴外部的位置。当在该位置的主要方向上设置气流时，该方向的矢量分量（522）与当前空气流动方向的矢量分量（524）相反。还包括以下独立权利要求：（a）在燃烧器系统（b）燃烧器系统中混合燃料和空气的方法。

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