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    • 3. 发明授权
    • Method of controlling combustion
    • 燃烧控制方法
    • US4528918A
    • 1985-07-16
    • US601613
    • 1984-04-18
    • Yoshio SatoNobuo KuriharaHiroshi MatsumotoTadayoshi SaitoMitsuyo NishikawaToshihiko Higashi
    • Yoshio SatoNobuo KuriharaHiroshi MatsumotoTadayoshi SaitoMitsuyo NishikawaToshihiko Higashi
    • F23C99/00F23N1/02F23N5/00F23N5/08F23D1/00F23N5/02
    • F23N5/003F23N1/022F23N5/082F23N2021/08F23N2029/18F23N2035/12F23N2039/02F23N5/08
    • A method of controlling combustion in a furnace of a boiler or the like having a burner for a main combustion and a burner for a reducing combustion in order to effect combustion for furnace denitrification. The method comprises the steps of: estimating the NO.sub.x generation amount from data on a flame formed by the main combustion; estimating the reducing agent generation amount from data on a flame formed by the reducing combustion; and controlling the flow rates of fuel and air supplied for the main and reducing combustions so that the amount of NO.sub.x emission as the difference between the NO.sub.x generation amount and the reducing agent generation amount is below a specified value. In practice, each of the NO.sub.x generation amount and the reducing agent generation amount is estimated from the flame pattern, the flame volume, the distance between the outlet of the burner concerned and the root of the flame concerned, etc., thereby to distributively control the flow rates of fuel and air supplied to each of the main combustion burner and the reducing combustion burner so that the amount of NO.sub.x emission is below a specified value.
    • 在具有用于主燃烧的燃烧器和用于还原燃烧的燃烧器的锅炉等的炉中控制燃烧的方法,以实现用于炉子反硝化的燃烧。 该方法包括以下步骤:从由主燃烧形成的火焰上的数据估计NOx产生量; 通过由还原燃烧形成的火焰上的数据估计还原剂产生量; 并且控制为主燃烧和还原燃烧供应的燃料和空气的流量,使得作为NOx生成量和还原剂产生量之间的差的NOx排放量低于规定值。 在实践中,根据火焰图案,火焰体积,燃烧器出口与所涉及的火焰根部之间的距离等来估计NOx产生量和还原剂产生量,从而分配控制 提供给主燃烧器和还原燃烧器的每一个的燃料和空气的流量使得NOx排放量低于规定值。