Low NOx burner
    41.
    发明授权
    Low NOx burner 失效
    低NOx燃烧器

    公开(公告)号:US5368472A

    公开(公告)日:1994-11-29

    申请号:US1584

    申请日:1993-01-06

    Abstract: A regenerative burner having heat storage units with combustion effluent/combustion air ducts therethrough, fuel intake means and a burner body, wherein the burner is designed to suppress NOx formation and to control flame shape and characteristic in the regenerative system during combustion. The regenerative burner may include a burner baffle, or may include a plurality of gas jets entrained in generally converging fashion for control of the flame charactaristics and shape dispositive of NOx formation. The burner may provide for staged combustion, either by means of sequential fuel injection or sequential provision of combustion air, or the burner may depress NOx formation by vitiation of combustion air with products of combustion. The present regenerative burners suppress NOx formation yet preserve the remaining characteristic features of regenerative systems.

    Abstract translation: 一种蓄热式燃烧器,其具有通过燃烧流出物/燃烧空气导管的蓄热单元,燃料进气装置和燃烧器本体,其中燃烧器被设计成抑制燃烧期间的NOx形成和控制再生系统中的火焰形状和特性。 蓄热式燃烧器可以包括燃烧器挡板,或者可以包括以大致会聚的方式夹带的多个气体射流,用于控制火焰特征和形成NOx形成的形状。 燃烧器可以通过顺序燃料喷射或顺序地提供燃烧空气来提供分级燃烧,或者燃烧器可以通过燃烧产物燃烧的燃烧空气来抑制NOx的形成。 本发明的再生式燃烧器抑制了NOx的形成,并保留了再生系统的剩余特征。

    Burner assemblies
    44.
    发明授权
    Burner assemblies 失效
    燃烧器组件

    公开(公告)号:US5154598A

    公开(公告)日:1992-10-13

    申请号:US751664

    申请日:1991-08-23

    CPC classification number: F23D14/46 F23D14/02 F23D14/125 F23D14/20 F23C2201/30

    Abstract: A gaseous fuel burner has a gas supply (21) feeding a burner head (10) mounted in a refractory block or tile (12) via a venturi (16). Primary combustion air is inspirated to mix with the fuel gas before passing through the venturi and is controlled by a controller (20). A further pipe branch (24) takes fuel gas directly to a further discharge means such as a series of poker nozzles (25) which inject pure gas directly into the combustion zone.

    Abstract translation: 气体燃料燃烧器具有通过文氏管(16)供给安装在耐火块或瓦片(12)中的燃烧器头部(10)的气体供应源(21)。 初级燃烧空气在通过文丘里管之前被激发以与燃料气体混合并由控制器(20)控制。 另一管道支管(24)将燃料气体直接吸入另外的排出装置,例如一些将纯净气体直接注入燃烧区的扑克喷嘴(25)。

    Methods and apparatus for burning fuel with low NO.sub.x formation
    45.
    发明授权
    Methods and apparatus for burning fuel with low NO.sub.x formation 失效
    用于燃烧低NOx形成燃料的方法和装置

    公开(公告)号:US5154596A

    公开(公告)日:1992-10-13

    申请号:US836779

    申请日:1992-02-13

    Abstract: Improved methods and burner apparatus are provided for discharging mixturesf fuel and air into furnace spaces wherein said mixtures are burned and flue gases having low NO.sub.x content are formed therefrom. The methods basically comprise discharging a first fuel mixture containing a portion of the fuel and flue gases from the furnace space into the furnace space whereby the mixture is burned in a primary reaction zone therein and flue gases having low NO.sub.x content are formed therefrom, and then discharging the remaining portion of the fuel into a secondary reaction zone wherein the remaining portion of fuel mixes with air and flue gases to form a second fuel mixture which is burned in the secondary reaction zone and additional flue gases having low NO.sub.x contents are formed therefrom.

    Abstract translation: 提供改进的方法和燃烧器装置,用于将燃料和空气的混合物排放到炉空间中,其中所述混合物被燃烧,并且由此形成具有低NOx含量的烟道气。 这些方法基本上包括将含有一部分燃料和烟道气的第一燃料混合物从炉子空间排放到炉子空间中,由此混合物在其中的初级反应区域中燃烧,并由此形成具有低NOx含量的烟道气,然后 将剩余部分的燃料排放到二次反应区中,其中燃料的剩余部分与空气和烟道气混合以形成在第二反应区中燃烧的第二燃料混合物,并由其形成具有低NO x含量的另外的烟道气。

    Fuel-staging coal burner
    47.
    发明授权
    Fuel-staging coal burner 失效
    燃油分级煤燃烧器

    公开(公告)号:US4206712A

    公开(公告)日:1980-06-10

    申请号:US920295

    申请日:1978-06-29

    Applicant: Joel Vatsky

    Inventor: Joel Vatsky

    CPC classification number: F23C7/002 F23C7/008 F23D1/00 F23K1/00 F23C2201/30

    Abstract: A fuel-staging burner assembly and method in which a burner nozzle has separate, concentrically disposed elements to burn coarse and fine coal particles under different combustion conditions to reduce the production of nitrogen oxides from the combustion of coal as a fuel. The burner assembly further includes a control nozzle for maintaining a swirling motion in the combustion flame and a separate, axially-movable adjustable sleeve for regulating the quantity flow of turbulence-free combustion-supporting air.

    Abstract translation: 一种燃料分级燃烧器组件和方法,其中燃烧器喷嘴具有分开的同心设置的元件,以在不同的燃烧条件下燃烧粗的和细小的煤颗粒,以减少作为燃料的煤燃烧产生氮氧化物。 燃烧器组件还包括用于保持燃烧火焰中的旋转运动的控制喷嘴和用于调节无湍流燃烧支持空气的量流的单独的可轴向移动的可调整套筒。

    Fuel-flexible burner apparatus and method for fired heaters
    48.
    发明授权
    Fuel-flexible burner apparatus and method for fired heaters 有权
    用于燃烧加热器的燃料柔性燃烧器装置和方法

    公开(公告)号:US09593847B1

    公开(公告)日:2017-03-14

    申请号:US14197333

    申请日:2014-03-05

    Applicant: ZEECO, INC.

    Abstract: A burner apparatus for a fired heating system and a method of burner operation. The burner provides stable operation when burning gas fuels having heating values ranging from low to high and accommodates sudden wide changes in the Wobbe value of the fuel delivered to the burner. The burner apparatus includes a plurality of exterior fuel ejectors and has an exterior notch which extends around the burner wall for receiving and combusting a portion of the gas fuel. At least a portion of the hot combustion product gas produced in the exterior notch is delivered through channels formed in the burner wall to the combustion area at the forward end of the burner. As the Wobbe value of the gas fuel decreases, one or more outer series of addition ejectors can be automatically activated as needed to maintain the amount of heat output desired.

    Abstract translation: 一种用于燃烧加热系统的燃烧器装置和燃烧器操作方法。 当燃烧具有从低到高的热值的燃气燃料并且适应输送到燃烧器的燃料的沃伯值的突然变化时,燃烧器提供稳定的操作。 燃烧器装置包括多个外部燃料喷射器,并具有围绕燃烧器壁延伸的外部凹口,用于接收和燃烧气体燃料的一部分。 在外部凹口中产生的热燃烧产物气体的至少一部分通过形成在燃烧器壁中的通道被输送到燃烧器前端处的燃烧区域。 随着气体燃料的沃泊值降低,可以根据需要自动启动一个或多个外部系列的附加喷射器,以保持所需的热量输出量。

    COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR
    49.
    发明申请
    COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR 有权
    用于向燃烧器供应燃料的燃烧器和方法

    公开(公告)号:US20130263571A1

    公开(公告)日:2013-10-10

    申请号:US13439990

    申请日:2012-04-05

    Abstract: A combustor includes a combustion chamber that defines a longitudinal axis. A primary reaction zone is inside the combustion chamber, and a secondary reaction zone inside the combustion chamber is downstream from the primary reaction zone. A center fuel nozzle extends axially inside the combustion chamber to the secondary reaction zone, and a plurality of fluid injectors circumferentially are arranged inside the center fuel nozzle downstream from the primary reaction zone. Each fluid injector defines an additional longitudinal axis out of the center fuel nozzle that is substantially perpendicular to the longitudinal axis of the combustion chamber.

    Abstract translation: 燃烧器包括限定纵向轴线的燃烧室。 主反应区在燃烧室内,燃烧室内的二次反应区位于主反应区的下游。 中心燃料喷嘴在燃烧室内轴向延伸到二次反应区,并且多个流体喷射器周向布置在主反应区下游的中心燃料喷嘴的内部。 每个流体注入器限定基本上垂直于燃烧室的纵向轴线的中心燃料喷嘴外的附加纵向轴线。

    Single stage gaseous fuel burner with low NOx emissions
    50.
    发明授权
    Single stage gaseous fuel burner with low NOx emissions 有权
    具有低NOx排放的单级气体燃料燃烧器

    公开(公告)号:US08292615B2

    公开(公告)日:2012-10-23

    申请号:US12087468

    申请日:2007-01-10

    CPC classification number: F23D14/22 F23C2201/30 F23D14/58 F23D2900/00008

    Abstract: A method for burning gas in a burner, including leading the gas through an inner fuel tube and introduction of combustion air through an annular space surrounding the inner fuel tube. This space forms of an outer tube terminated by a conically converging section, wherein the end of the inner fuel tube forms a burner head. The major part of the primary gas is introduced into the upstream end of the burner head, to go into the combustion air that flows past the burner head, whereas a smaller part of a secondary gas is introduced into the free end of the burner head and into the constricted part of the annular channel that surrounds the burner head. The gas flow is accelerated past the burner head due to the reducing cross section and is burned downstream in relation to the burning head.

    Abstract translation: 一种用于在燃烧器中燃烧气体的方法,包括使气体引导通过内部燃料管并且引入燃烧空气通过围绕内部燃料管的环形空间。 由锥形会聚部分终止的外管的这种空间形式,其中内燃料管的端部形成燃烧头。 主要气体的主要部分被引入到燃烧器头部的上游端,以进入流过燃烧器头部的燃烧空气,而较小部分的二次气体被引入燃烧器头部的自由端, 进入围绕燃烧器头部的环形通道的收缩部分。 由于减少的横截面,气流被加速通过燃烧器头部,并相对于燃烧头在下游被燃烧。

Patent Agency Ranking