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公开(公告)号：US4144016A
公开(公告)日：1979-03-13
申请号：US767144
申请日：1977-02-09
摘要： A burner includes a plurality of air nozzles open toward a furnace and which are disposed unsymmetrically with respect to the central axis of the burner and so combined that the velocity of combustion air to issue from one or more of the nozzles is higher than the mean air velocity through the total air nozzle opening area and the velocity of combustion air from the rest of the nozzles is lower than the mean velocity. The opening area of the lower-velocity air nozzle or nozzles accounts for from 30 to 60% of the total opening area. A fuel nozzle or nozzles are located within or adjacent the lower-velocity air nozzle or nozzles. The amount of air to issue from the lower-velocity air nozzle or nozzles is not more than 70% of the theoretical air for the fuel to jet out of the burner.
摘要翻译： 燃烧器包括朝向炉子开放的多个空气喷嘴，其相对于燃烧器的中心轴线不对称地设置，并且结合在一起，使得从一个或多个喷嘴发出的燃烧空气的速度高于平均空气 通过总空气喷嘴开口面积的速度和来自其余喷嘴的燃烧空气的速度低于平均速度。 低速空气喷嘴或喷嘴的开口面积占总开口面积的30％至60％。 燃料喷嘴或喷嘴位于低速空气喷嘴或喷嘴内或附近。 从低速空气喷嘴或喷嘴发出的空气量不超过燃料喷出燃烧器的理论空气的70％。
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公开(公告)号：US4669398A
公开(公告)日：1987-06-02
申请号：US777878
申请日：1985-09-20
摘要： A pulverized fuel firing apparatus comprises a first pulverized fuel injection compartment so constructed that the combined amount of primary air and secondary air to be consumed is less than the theoretical amount of air required for the combustion of the pulverized fuel to be fed as mixed with the primary air to a furnace, a second pulverized fuel injection compartment so constructed that the combined primary and secondary air amount is substantially equal to the theoretical air for the pulverized fuel to be fed together with the primary air, and a supplementary air compartment for injecting supplementary air into the furnace. The three compartments are arranged close to one another and control the NOx production upon combustion of the pulverized fuel.
摘要翻译： 粉碎燃料的燃烧装置包括第一粉碎燃料喷射室，其被构造成使得被消耗的一次空气和二次空气的组合量小于与被混合的粉末燃料的燃烧所需的理论空气量 一次空气到炉中，第二粉碎燃料喷射室被构造成使得一次和二次空气量的组合基本上等于用于与一次空气一起供给的粉碎燃料的理论空气，以及用于喷射辅助空气的辅助空气室 空气进入炉。 三个隔间彼此靠近配置，并控制燃烧燃烧时的NOx产生。
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公开(公告)号：US4329932A
公开(公告)日：1982-05-18
申请号：US156092
申请日：1980-06-03
申请人： Yasuro Takahashi , Masayasu Sakai
发明人： Yasuro Takahashi , Masayasu Sakai
CPC分类号： F23C6/047 , F23K3/02 , F23C2201/301
摘要： A method of burning fuel with lowered emission of nitrogen oxides comprises feeding pulverized fuel to the main burner in a combustion furnace and additionally feeding pulverized fuel to the region of the furnace where the first fuel is about to conclude its combustion, using inert gas with or without a low oxygen content as a conveying fluid, while supplying oxygen or air to a region downstream of the region for fuel addition.
摘要翻译： 一种燃烧氮氧化物排放量较低的燃料的方法包括将粉煤燃料送入燃烧炉中的主燃烧器，并另外将粉煤燃料送入第一燃料即将结束燃烧的炉区，使用惰性气体与 而没有低氧含量作为输送流体，同时向该区域下游的区域供应氧气或空气用于燃料添加。
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公开(公告)号：US4050879A
公开(公告)日：1977-09-27
申请号：US628427
申请日：1975-11-03
摘要： A fuel combustion apparatus for burning a premix of an air stream and a fuel jet, comprising an air nozzle for issuing air to form a conically spread film of the air stream, and an atomizer for injecting fuel circumferentially unevenly into the conical film of air stream so that a premix uniformly mixed with air but having a circumferentially varied air-fuel ratio which is locally selectively greater than 1 or less than 1.
摘要翻译： 一种用于燃烧空气流和燃料喷射的预混物的燃料燃烧装置，包括用于排出空气以形成空气流的锥形扩散膜的空气喷嘴，以及用于将燃料周向不均匀地喷射到气流锥形膜中的雾化器 使得与空气均匀混合但具有局部选择性地大于1或小于1的周向变化的空燃比的预混合物。
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公开(公告)号：US3976420A
公开(公告)日：1976-08-24
申请号：US554703
申请日：1975-03-03
申请人： Yasuro Takahashi , Hisao Yamamoto
发明人： Yasuro Takahashi , Hisao Yamamoto
摘要： Method and burner apparatus for burning fuels wherein an air-fuel premixture of a low fuel concentration formed by premixing a fuel with combustion air in an amount larger than the theoretical air amount necessary for combustion of said fuel is fed and burnt in a combustion zone, and simultaneously, a fuel and combustion air in an amount smaller than the theoretical air amount necessary for combustion of said fuel are fed separately and burnt in the vicinity of said combustion zone or an air-fuel premixture formed by premixing a fuel with a part of combustion air supplied in said amount and the remainder of said combustion air are fed separately in the vicinity of said combustion zone.
摘要翻译： 用于燃烧燃料的方法和燃烧器装置，其中通过将燃料与燃烧空气预混合形成的低燃料浓度的空气燃料预混合物的量大于燃烧所需燃料所需的理论空气量，在燃烧区域中进行燃烧， 同时，燃料和燃烧空气的量小于所述燃料燃烧所需的理论空气量，分别在所述燃烧区附近被供给燃烧，或者通过将燃料与一部分燃料预混合形成的空气燃料预混合物 以所述量供应的燃烧空气和剩余的所述燃烧空气在所述燃烧区附近单独供给。
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