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    • 8. 发明授权
    • Reheat burner and method of mixing fuel/carrier air flow within a reheat burner
    • 再热燃烧器和在再热燃烧器内混合燃料/载体空气流的方法
    • US09541293B2
    • 2017-01-10
    • US13951507
    • 2013-07-26
    • ALSTOM Technology Ltd
    • Michael Düsing
    • F23R3/34F23C3/00F23R3/20
    • F23R3/346F23C3/002F23R3/20
    • The invention refers to a reheat burner that includes a flow channel for a hot gas flow with a lance arranged along said flow channel, protruding into the flow channel for injecting a fuel over an injection plane perpendicular to a channel longitudinal axis, wherein the channel and lance define a vortex generation zone upstream of the injection plane and a mixing zone downstream of the injection plane in the hot gas flow direction. The mixing zone provides at least one axially region having different cross sectional areas along its longitudinal axis with continuously changing shape, or having non circular cross section areas which change location along its longitudinal axis by continuously rotation around the longitudinal axis.
    • 本发明涉及一种再热燃烧器,其包括用于热气流的流动通道,其具有沿着所述流动通道布置的喷枪,突出到流动通道中,用于在与通道纵向轴线垂直的注入平面上喷射燃料,其中通道和 喷枪在喷射平面的上游定义涡流产生区,在热气流方向上限定喷射平面下游的混合区。 混合区提供沿其纵向轴线具有不同横截面积的至少一个轴向区域,其具有连续变化的形状,或具有非圆形横截面区域,其通过围绕纵向轴线的连续旋转沿其纵向轴线改变位置。
    • 9. 发明申请
    • METHOD AND BURNER FOR REDUCING NITROGEN OXIDE EMISSIONS DURING THE COMBUSTION OF A GASEOUS FUEL
    • 用于在气体燃料燃烧期间减少氮氧化物排放的方法和燃烧器
    • US20170003018A1
    • 2017-01-05
    • US15104779
    • 2014-12-16
    • FIVES STEIN
    • Patrice SEDMAK
    • F23C9/08F23C5/08
    • F23C9/08F23C3/002F23C5/08F23C9/006F23C2202/20F23C2202/30F23C2900/09002F23D2203/005F23D2203/1012
    • A method for reducing nitrogen oxide NOx emissions during combustion of a gaseous fuel in a burner intended for a naked-flame or controlled-atmosphere reheating furnace, for reheating steel products or for continuous coating and/or annealing of metal strips, wherein a first dilution is carried out by mixing combustion air with combustion products upstream from or in the body of the burner, and a second dilution is carried out directly at the level at which the gaseous fuel reacts with the combustion air, mixing the fuel with a recirculated portion of the flame or products of partial combustion, the double dilution enabling the physical and chemical properties of the gas to be modified in order for the burner to operate with low oxygen rates and obtain a flame that produces a very low level of NOx production regardless of the temperature of the enclosure in which the combustion takes place.
    • 一种用于在用于裸火焰或可控气氛再热炉的燃烧器中燃烧气体燃料期间用于再加热钢产品或用于连续涂覆和/或退火金属带的方法,其中第一次稀释 通过将燃烧空气与燃烧器主体上游或燃烧器的燃烧产物混合进行,并且第二次稀释在气态燃料与燃烧空气反应的水平处直接进行,将燃料与再循环部分 火焰或部分燃烧的产物,双重稀释使得能够改变气体的物理和化学性质,以便燃烧器以低氧气速率运行并获得产生非常低水平的NOx产生的火焰,而不管 发生燃烧的外壳的温度。