Pilot nozzle steam injection for reduced NO.sub.x emissions, and method
    1.
    发明授权
    Pilot nozzle steam injection for reduced NO.sub.x emissions, and method 失效
    用于减少NOx排放的先导喷嘴蒸汽喷射​​和方法

    公开(公告)号:US5987875A

    公开(公告)日:1999-11-23

    申请号:US892662

    申请日:1997-07-14

    IPC分类号: F23D23/00 F23L7/00 F02C3/30

    摘要: A combustion system has a diffusion flame pilot assembly and a steam delivery assembly. The diffusion flame pilot assembly has a fuel line with a downstream end terminating at a pilot nozzle. The steam delivery assembly has a steam line terminating at a steam outlet proximate to said fuel line and upstream of said pilot nozzle for directing steam to the pilot nozzle. An aspect of the invention has a steam throttle valve for adjusting the steam flow to the pilot nozzle based on the combustion system's NO.sub.X emissions and/or characteristics of said pilot fuel stream.

    摘要翻译: 燃烧系统具有扩散火焰导向组件和蒸汽输送组件。 扩散火焰导向组件具有燃料管线,其下游端终止于先导喷嘴。 蒸汽输送组件具有终止于靠近所述燃料管线的蒸汽出口和所述引燃喷嘴上游的蒸汽管线,用于将蒸汽引导到先导喷嘴。 本发明的一个方面具有一个蒸汽节流阀,用于根据燃烧系统的NO x排放和/或所述引燃燃料流的特性调节到导向喷嘴的蒸汽流量。