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    • 6. 发明授权
    • Low NO.sub.x primary zone radiant screen device
    • 低NOx主区辐射屏设备
    • US4904179A
    • 1990-02-27
    • US935070
    • 1986-11-21
    • Thomas E. DragoChester D. Ripka
    • Thomas E. DragoChester D. Ripka
    • F23D14/70
    • F23D14/70F23C2203/20
    • An apparatus and method for use in a combustion system of a gas-fired furnace to inhibit formation of oxides of nitrogen (NO.sub.x) by the combustion system thereby reducing NO.sub.x emissions from the combustion system. The apparatus is made of a material which is positioned at the interface of the primary zone and the secondary zone of a combustion flame produced by a two-zone burner which is part of the combustion system, to temper the combustion flame by absorbing thermal energy from the combustion flame. The device sufficiently tempers the combustion flame to limit peak combustion flame temperatures and residence times at these peak combustion flame temperatures to levels which inhibit formation of oxides of nitrogen.
    • 一种在燃烧炉的燃烧系统中使用的用于通过燃烧系统抑制形成氮氧化物(NOx)的装置和方法,从而减少来自燃烧系统的NOx排放。 该设备由位于燃烧火焰的主区域和次级区域的界面上的材料制成,燃烧火焰是由作为燃烧系统的一部分的两区燃烧器产生的,以通过吸收来自 燃烧火焰。 该装置充分地调节燃烧火焰,以将峰值燃烧火焰温度和停留时间在这些峰值燃烧火焰温度下限制到抑制氮氧化物形成的水平。