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1.发明授权公开(公告)号：US09003806B2
公开(公告)日：2015-04-14
申请号：US13412110
申请日：2012-03-05
IPC分类号： F23R3/36
CPC分类号： F23R3/36 , F23D2209/30 , F23N2037/08 , Y02E20/16
摘要： A method of operating a combustor having a central nozzle and a plurality of outer nozzles surrounding the central nozzle is provided. The method includes providing a liquid fuel to only the plurality of outer nozzles at a specified total energy input. The method includes decreasing the liquid fuel to the plurality of outer nozzles while simultaneously increasing a gas fuel to the central nozzle and the plurality of outer nozzles to substantially maintain the specified total energy input. The method includes supplying a fuel-air ratio of the gas fuel to the central nozzle that exceeds a threshold value such that a central nozzle flame is anchored. An air-fuel ratio of the gas fuel to the plurality of outer nozzles is less than the threshold value such that a plurality of outer nozzle flames are lifted until a purge flow is supplied to the outer nozzles.
摘要翻译： 提供一种操作具有中心喷嘴和围绕中心喷嘴的多个外喷嘴的燃烧器的方法。 该方法包括以指定的总能量输入仅向多个外部喷嘴提供液体燃料。 该方法包括将液体燃料减少到多个外部喷嘴，同时将气体燃料同时增加到中心喷嘴和多个外部喷嘴以基本维持指定的总能量输入。 该方法包括将中央喷嘴的气体燃料的燃料空气比提供超过阈值，使得中心喷嘴火焰被锚定。 气体燃料与多个外部喷嘴的空燃比小于阈值，使得多个外部喷嘴火焰被提升直到向外部喷嘴供应净化流。
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2.发明申请公开(公告)号：US20130227956A1
公开(公告)日：2013-09-05
申请号：US13412110
申请日：2012-03-05
CPC分类号： F23R3/36 , F23D2209/30 , F23N2037/08 , Y02E20/16
摘要： A method of operating a combustor having a central nozzle and a plurality of outer nozzles surrounding the central nozzle is provided. The method includes providing a liquid fuel to only the plurality of outer nozzles at a specified total energy input. The method includes decreasing the liquid fuel to the plurality of outer nozzles while simultaneously increasing a gas fuel to the central nozzle and the plurality of outer nozzles to substantially maintain the specified total energy input. The method includes supplying a fuel-air ratio of the gas fuel to the central nozzle that exceeds a threshold value such that a central nozzle flame is anchored. An air-fuel ratio of the gas fuel to the plurality of outer nozzles is less than the threshold value such that a plurality of outer nozzle flames are lifted until a purge flow is supplied to the outer nozzles.
摘要翻译： 提供一种操作具有中心喷嘴和围绕中心喷嘴的多个外喷嘴的燃烧器的方法。 该方法包括以指定的总能量输入仅向多个外部喷嘴提供液体燃料。 该方法包括将液体燃料减少到多个外部喷嘴，同时将气体燃料同时增加到中心喷嘴和多个外部喷嘴以基本维持指定的总能量输入。 该方法包括将中央喷嘴的气体燃料的燃料空气比提供超过阈值，使得中心喷嘴火焰被锚定。 气体燃料与多个外部喷嘴的空燃比小于阈值，使得多个外部喷嘴火焰被提升直到向外部喷嘴供应净化流。
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