Hybrid catalytic combustor
    1.
    发明授权
    Hybrid catalytic combustor 失效
    混合催化燃烧器

    公开(公告)号:US06339925B1

    公开(公告)日:2002-01-22

    申请号:US09184684

    申请日:1998-11-02

    IPC分类号: F02C7228

    CPC分类号: F23C13/00 F23R3/28 F23R3/40

    摘要: A hybrid combustor, for providing stable high and low levels of operation while minimizing emissions of NOx, CO, and UHCs, includes a casing having a chamber, a catalytic combustor disposed in the chamber, and a non-premixed combustor disposed in the chamber. The hybrid combustor may comprise a fuel nozzle comprising a casing having a chamber, and a body supportable in the chamber to define a passageway between the body and the casing. The passageway has an inlet for receiving a stream of air and an outlet for discharging a stream of fuel and air, and the body includes a tapering downstream portion. Desirably, flow separation of the fuel and air mixture from the body (i.e., recirculation of the fuel and air mixture in the passageway and/or chamber) is inhibited whereby a generally uniform fuel and air mixture is provided.

    摘要翻译: 用于提供稳定的高和低水平的操作同时最小化NOx,CO和UHC的排放的混合式燃烧器包括具有室的壳体,设置在室中的催化燃烧器和设置在室中的非预混燃烧器。 混合燃烧器可以包括燃料喷嘴,燃料喷嘴包括具有室的壳体和可在室内支撑以在主体和壳体之间限定通道的主体。 通道具有用于接收空气流的入口和用于排出燃料和空气流的出口,并且主体包括锥形的下游部分。 理想地,抑制燃料和空气混合物与主体的流动分离(即,通道和/或室中的燃料和空气混合物的再循环),从而提供大致均匀的燃料和空气混合物。

    Support structure for a catalyst in a combustion reaction chamber
    2.
    发明授权
    Support structure for a catalyst in a combustion reaction chamber 失效
    燃烧反应室中催化剂的支撑结构

    公开(公告)号:US6116014A

    公开(公告)日:2000-09-12

    申请号:US462639

    申请日:1995-06-05

    IPC分类号: F23C13/00 F23R3/40 F02C3/00

    摘要: A support structure for securing a catalyst structure comprising a multiplicity of longitudinally disposed channels for passage of a flowing gas mixture within a reactor, said support structure being comprised of a monolithic open celled or honeycomb-like structure formed by thin strips or ribs of high temperature resistant metal or ceramic which abuts against one end of the catalyst structure, and extends in a direction perpendicular to the longitudinal axis of the catalyst structure to essentially cover an end face (at either the inlet end or outlet end or both) of the catalyst structure with the support structure being secured on its periphery to the reactor wall. The strips or ribs making up the support structure are bonded together to form a unitary structure having cellular openings at least as large as the catalyst structure channel openings. The cellular openings in the support structure are also positioned to be in fluid communication with the channels of the catalyst structure thus affording essentially unaltered gas flow from the catalyst structure through the support structure.

    摘要翻译: 一种用于固定催化剂结构的支撑结构,其包括多个纵向设置的通道,用于使反应器内的流动气体混合物通过,所述支撑结构包括由高温的薄带或肋形成的整体开式或蜂窝状结构 抵抗催化剂结构的一端的电阻金属或陶瓷,并且沿与催化剂结构的纵向轴线垂直的方向延伸,以基本上覆盖催化剂结构的端面(入口端或出口端或两端) 其支撑结构在其周边固定到反应器壁上。 构成支撑结构的条带或肋条结合在一起,以形成具有至少与催化剂结构通道开口一样大的泡孔的整体结构。 支撑结构中的细胞开口还被定位成与催化剂结构的通道流体连通,从而从催化剂结构通过支撑结构提供基本上不变的气体流。

    Catalytic combustor flow conditioner and method for providing uniform gasvelocity distribution
    3.
    发明授权
    Catalytic combustor flow conditioner and method for providing uniform gasvelocity distribution 失效
    催化燃烧器流量调节器和提供均匀气速分布的方法

    公开(公告)号:US06460345B1

    公开(公告)日:2002-10-08

    申请号:US09712318

    申请日:2000-11-14

    IPC分类号: F02C726

    摘要: A device for conditioning the flow of hot gas in a catalytic combustor in preparation for entry into a catalytic reactor. The device is composed of at least one and most preferably two or more disks that are secured to a shroud so as to be disposed in a plane generally perpendicular to the hot gas flow direction. Each disk is composed of a plurality of small cells oriented so that flow channels therethrough are axially disposed. The cells linearize the gas flow and exert drag on the gas flow therethrough. This generates a static pressure gradient in the flow fields upstream and downstream of the honeycomb disk, which in turn causes flow adjustments so as to produce a more uniform axial flow field. This results in a more uniform fuel/air concentration distribution and velocity distribution at the catalytic reactor inlet.

    摘要翻译: 一种用于调节催化燃烧器中的热气流以准备进入催化反应器的装置。 该装置由至少一个并且最优选地两个或更多个盘组成,其固定到护罩以便被设置在大致垂直于热气体流动方向的平面中。 每个盘由多个小单元组成,定向成使得其中的流动通道被轴向设置。 细胞线性化气流并对其中的气流施加阻力。 这在蜂窝盘的上游和下游的流场中产生静态压力梯度,这又导致流量调节,从而产生更均匀的轴向流场。 这导致在催化反应器入口处更均匀的燃料/空气浓度分布和速度分布。