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    Low NO.sub.x burner
    1.
    发明授权
    Low NO.sub.x burner 失效
    低NOx燃烧器

    公开(公告)号：US5249535A

    公开(公告)日：1993-10-05

    申请号：US995942

    申请日：1992-12-21

    Applicant: Landy Chung

    Inventor： Landy Chung

    IPC: F23D1/02

    CPC classification number: F23D1/02 ,  F23D2201/101

    Abstract: A low-nox burner for use in industrial furnaces and/or boilers which burn pulverized coal. The burner includes a burner tip which divides an annular pulverized coal stream into alternating fuel-rich and fuel-lean streams. The tip includes a plurality of alternating main and secondary blade members which are skewed to produce rotational movement in the streams. The main blade has a leading edge that is aligned with a radial vector extending through a center axis of the burner and a trailing edge that is tilted with respect to the radial vector in order to define a substantially planar surface between the leading and trailing edges. The secondary blade includes leading and trailing edges that are both aligned with radial vectors and defines a twisted surfaces between the edges. The secondary blade is skewed with respect to the longitudinal direction by an angle that is substantially greater than the angle at which the main blade is skewed. As a result, channels having converging cross sections are defined between the main blade and one adjacent secondary blade, and diverging channels are defined by the main blade and another adjacent secondary blade. During operation, the tip creates a fuel-rich zone surrounded by a fuel-lean zone in the combustion region.

    Abstract translation: 用于燃烧粉煤的工业炉和/或锅炉的低噪声燃烧器。 燃烧器包括将环形粉煤流分成交替的富燃料和贫燃料流的燃烧器尖端。 尖端包括多个交替的主和副叶片构件，其被倾斜以在流中产生旋转运动。 主叶片具有与延伸穿过燃烧器的中心轴线的径向矢量对准的前缘和相对于径向矢量倾斜的后缘，以便在前缘和后缘之间限定基本平坦的表面。 次级叶片包括前缘和后缘，它们都与径向矢量对齐并且限定边缘之间的扭曲表面。 次级叶片相对于纵向方向偏斜一个大大大于主叶片歪斜角度的角度。 结果，具有会聚横截面的通道限定在主叶片和相邻的次叶片之间，并且发散通道由主叶片和另一相邻的次叶片限定。 在操作期间，尖端产生在燃烧区域中由燃料贫乏区域包围的富燃料区域。

    Boiler furnace air register
    2.
    发明授权
    Boiler furnace air register 失效
    锅炉风机

    公开(公告)号：US4927352A

    公开(公告)日：1990-05-22

    申请号：US221134

    申请日：1988-07-19

    Applicant: Landy Chung

    Inventor： Landy Chung

    IPC: F23C7/00

    CPC classification number: F23C7/006

    Abstract: A dual register for controlling the flow of combustion air to a burner including an outer register formed by a mounting frame having spaced apart support plates interconnected by circumferentially spaced fixed housing members. The frame defines a plurality of inlet openings for admitting a first stream of air substantially radially from a wind box. Each inlet opening includes at least one, non-planar, oblique parallelogram shaped curved damper door for controlling the admission of combustion air into an inner region of the outer register; each damper door is configured to impart a rotational component to the first stream of air while urging it axially towards a burner region. A connector for connecting the register to the combustion air region includes a plurality of apertures for communicating a second stream of air from the wind box to an outlet region of the register. The second stream of air inhibits the development of undesirable flow patterns in the first stream of air as the first stream leaves the register. An inner register assembly provides a third stream of air for the burner that flows substantially axially from an axial inlet opening to the burner region. A seal comprising a plurality of overlapping, radial sealing members for providing a sealing interface between the register and a fuel pipe assembly extending through the register.

    Abstract translation: 用于控制燃烧空气流到燃烧器的双重配准器，包括由安装框架形成的外部配准器，该安装框架具有通过周向间隔开的固定壳体构件互连的间隔开的支撑板。 框架限定多个入口开口，用于从风箱基本径向地允许第一空气流。 每个入口开口包括至少一个非平面的倾斜平行四边形弯曲的阻尼门，用于控制燃烧空气进入外部寄存器的内部区域; 每个阻尼器门构造成在第一气流中赋予旋转分量同时朝向燃烧器区域轴向推动。 用于将该寄存器连接到燃烧空气区域的连接器包括多个孔，用于将来自风箱的第二空气流传送到该寄存器的出口区域。 当第一个流离开寄存器时，第二个空气流阻止了第一个空气流中不期望的流动模式的发展。 内部对准组件提供用于燃烧器的第三气流，其基本上轴向地从轴向入口开口流到燃烧器区域。 一种密封件，包括多个重叠的径向密封构件，用于在所述对准器和延伸穿过所述寄存器的燃料管组件之间提供密封接口。

    Burner register with dual inlet air valves
    7.
    发明授权
    Burner register with dual inlet air valves 失效
    燃烧器配有双进气阀

    公开(公告)号：US4975045A

    公开(公告)日：1990-12-04

    申请号：US854791

    申请日：1986-04-23

    Applicant: George K. Green ,  Landy Chung

    Inventor： George K. Green ,  Landy Chung

    IPC: F23C7/00

    CPC classification number: F23C7/008 ,  F23C7/004

    Abstract: A burner register assembly is provided for controlling a supply of secondary air to a furnace having a fuel and primary air supply and a secondary air supply. The burner register assembly includes a body and a pair of air valves in the body for communication with the secondary air supply to control the admission of secondary air to the register assembly. Each air valve communicates with a scroll section in the burner register body, which scroll section has a scroll passageway which spirals inwardly in the direction of secondary air flow to provide a controlled flow pattern of secondary air into the furnace. The air valve is disposed upstream of the scroll section with which it communicates and thus is well removed from the extreme environment of the opening or throat to the furnace. The burner register assembly also includes a shadow vane assembly positioned proximate to the outlet of the register, i.e., proximate to the furnace throat, to provide protection form radiant heat from the furnance. The shadow vane assembly includes a set of radially outwardly extending circumferentially arranged air foil-shaped vanes and a cooling passage associated with each vane.

    Abstract translation: 提供燃烧器配准器组件，用于控制向具有燃料和一次空气供应和二次空气供应的炉子供应二次空气。 燃烧器配准器组件包括主体和身体中的一对空气阀，用于与二次空气供应连通以控制二次空气进入对准组件。 每个空气阀与燃烧器主体中的涡旋部分连通，该涡旋部分具有沿二次空气流动方向向内螺旋的涡旋通道，从而向炉内提供受控的二次空气流动模式。 空气阀设置在与其连通的涡旋部分的上游，并且因此从开口或喉部的极端环境中很好地从炉中去除。 燃烧器配准器组件还包括靠近配准器的出口定位的阴影叶片组件，即靠近炉喉，从而提供来自炉的辐射热的保护。 阴影叶片组件包括一组径向向外延伸的周向布置的空气箔形叶片和与每个叶片相关联的冷却通道。

    Boiler furnace air register
    8.
    发明授权
    Boiler furnace air register 失效
    锅炉风机

    公开(公告)号：US4681532A

    公开(公告)日：1987-07-21

    申请号：US729690

    申请日：1985-05-02

    Applicant: Landy Chung

    Inventor： Landy Chung

    IPC: F23C7/00 ,  F23M9/00

    CPC classification number: F23C7/004 ,  F23C7/008

    Abstract: An air register is provided for admitting to and regulating combustion air in industrial open flame heated boilers and furnaces. The register comprises an outer member to impart rotation, balancing and blending of opposed incoming air streams; an inner member to impart a spiral motion to a resultant single air stream in the direction of the boiler or furnace entrance; and a third member to form the air stream into a flame encompassing envelope.

    Abstract translation: 提供一个空气记录器，用于允许工业用明火加热锅炉和炉子中的燃烧空气的调节和调节。 该寄存器包括外部构件，用于赋予相反的进入空气流的旋转，平衡和混合; 内部构件，以在锅炉或炉入口的方向上对所得单个空气流施加螺旋运动; 以及第三构件，以将空气流形成为包围火焰的火焰。

    Emission control system
    9.
    发明申请
    Emission control system 失效
    排放控制系统

    公开(公告)号：US20050255022A1

    公开(公告)日：2005-11-17

    申请号：US11040294

    申请日：2005-01-14

    Applicant: Clyde Parrish ,  Landy Chung

    Inventor： Clyde Parrish ,  Landy Chung

    IPC: B01D53/50 ,  B01D53/62

    CPC classification number: B01D53/50 ,  B01D53/62

    Abstract: Methods and apparatus utilizing hydrogen peroxide are useful to reduce SOx and mercury (or other heavy metal) emissions from combustion flue gas streams. The methods and apparatus may further be modified to reduce NOx emissions. Continuous concentration of hydrogen peroxide to levels approaching or exceeding propellant-grade hydrogen peroxide facilitates increased system efficiency. In this manner, combustion flue gas streams can be treated for the removal of SOx and heavy metals, while isolating useful by-products streams of sulfuric acid as well as solids for the recovery of the heavy metals. Where removal of NOx emissions is included, nitric acid may also be isolated for use in fertilizer or other industrial applications.

    Abstract translation: 使用过氧化氢的方法和装置可用于减少来自燃烧烟道气流的SO x和汞（或其它重金属）排放物。 可以进一步修改方法和装置以减少NOx排放。 将过氧化氢持续浓缩至接近或超过推进剂级过氧化氢的水平有助于提高系统效率。 以这种方式，可以处理燃烧烟气流以除去SO x和重金属，同时分离硫酸的有用副产物流以及用于回收重金属的固体。 在纳入NOx排放的地方，硝酸也可以隔离用于肥料或其他工业应用。

    Burner for tangentially fired boiler
    10.
    发明授权
    Burner for tangentially fired boiler 失效
    燃烧器切向燃烧锅炉

    公开(公告)号：US5535686A

    公开(公告)日：1996-07-16

    申请号：US380831

    申请日：1995-01-30

    Applicant: Landy Chung

    Inventor： Landy Chung

    IPC: F23D1/02

    CPC classification number: F23D1/02 ,  F23D2201/101

    Abstract: A low nox burner for use in a tangentially-fired furnace having a pivotally mounted burner tip attached to a fuel passage that in operation, conveys pulverized coal carried by an airstream. The burner tip includes a plurality of first and second blade members extending substantially radially from a centrally positioned, cone-shaped support member. A fuel guide surrounds and is attached to the outer ends of the first and second blade members thereby defining alternating fuel-rich and fuel-lean channels between the centrally positioned support member and inside of the fuel guide. An air guide surrounds the fuel guide and defines a passage for combustion air which is received from an air housing. The position of the air guide with respect to the fuel guide is maintained by a plurality of angled vanes which are operative to impart rotational forces to the combustion air traveling between the air guide and the fuel guide.

    Abstract translation: 一种用于切向燃烧炉的低噪声燃烧器，其具有附接到燃料通道的可枢转地安装的燃烧器尖端，该燃料通道在运行中传送由气流携带的粉煤。 燃烧器尖端包括从中心定位的锥形支撑构件基本上径向延伸的多个第一和第二叶片构件。 燃料引导件围绕并附接到第一和第二叶片构件的外端，从而在中心定位的支撑构件和燃料引导件的内部之间限定交替的富燃料和贫燃料通道。 空气引导件围绕燃料引导件并且限定了从空气壳体接收的用于燃烧空气的通道。 空气引导件相对于燃料引导件的位置由多个成角度的叶片保持，该叶片可操作以向在空气引导件和燃料引导件之间行进的燃烧空气赋予旋转力。

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