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    Pulverized solid fuel nozzle tip assembly with low contact frame
    1.
    发明授权
    Pulverized solid fuel nozzle tip assembly with low contact frame 有权

    公开(公告)号：US11859813B1

    公开(公告)日：2024-01-02

    申请号：US18082901

    申请日：2022-12-16

    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

    Inventor： John Childs Lewis ,  Richard Edward Donais ,  Kevin T. Grzebien

    IPC: F23D1/00

    CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2201/20

    Abstract: A pulverized solid fuel nozzle tip assembly with a low contact frame for use with a pulverized solid fuel pipe nozzle is described. The pulverized solid fuel nozzle tip assembly has an outer nozzle tip portion adapted to mount in supported relation with the pulverized solid fuel pipe nozzle, and an inner nozzle tip portion adapted for mounting within the outer nozzle tip portion to have secure tiltable movement. The outer nozzle has supporting surfaces that support surfaces of the inner nozzle tip portion to minimize the tilting forces transmitted to the inner nozzle tip portion during normal furnace operation, enhancing the wear resistance of the pulverized solid fuel nozzle tip assembly. The supporting surfaces of the outer nozzle also eliminate stress cracking to the surfaces of the inner nozzle tip portion that can arise due to thermal growth.

    COAL ROPE DISTRIBUTOR WITH REPLACEABLE WEAR COMPONENTS
    3.
    发明申请
    COAL ROPE DISTRIBUTOR WITH REPLACEABLE WEAR COMPONENTS 有权
    具有可更换磨损组件的COAL ROPE分配器

    公开(公告)号：US20170023243A9

    公开(公告)日：2017-01-26

    申请号：US14833449

    申请日：2015-08-24

    Applicant: ALSTOM Technology Ltd

    Inventor： Daniel J. Adam ,  Oliver G. Briggs ,  Thomas J. Campanelli ,  Paul M. Colson ,  Christopher D. Curl ,  Dai Q. Dau ,  Wendell H. Mills

    IPC: F23D1/00 ,  F23K3/02

    CPC classification number: F23K3/02 ,  F15D1/04 ,  F23D1/00 ,  F23D2201/101 ,  F23D2201/20 ,  F23K2203/008 ,  F23M11/042

    Abstract: A head assembly for a pulverized coal nozzle includes removeable wear-resistant inserts having vanes. The vanes may be flat or curved to direct a stream of air and pulverized solid fuel particles from the inlet port toward the outlet port. The curved vanes curve in two dimensions to evenly distribute the stream of air and pulverized solid fuel away from the outer surfaces reducing wear and corrosion. The pipe elbow has a removable cover that allows for easy access. The vanes are attached to a wear-resistant replaceable liner thus allowing them to be easily removed and replaced. The wear-resistant liner may be made from several parts for ease of removal and replacement.

    Abstract translation: 用于粉煤喷嘴的头部组件包括具有叶片的可移除的耐磨插入件。 叶片可以是平坦的或弯曲的，以将空气流和粉碎的固体燃料颗粒从入口引导到出口。 弯曲的叶片在两个维度上弯曲，以将空气流和粉碎的固体燃料从外表面均匀分布，从而减少磨损和腐蚀。 管肘具有可拆卸的盖子，可以方便地进入。 叶片连接到耐磨可更换的衬里，从而允许它们容易地移除和更换。 耐磨衬里可以由几个部件制成，以方便拆卸和更换。

    PULVERIZED SOLID FUEL NOZZLE ASSEMBLY
    5.
    发明申请
    PULVERIZED SOLID FUEL NOZZLE ASSEMBLY 有权
    固体燃料喷射装置

    公开(公告)号：US20070234938A1

    公开(公告)日：2007-10-11

    申请号：US11279123

    申请日：2006-04-10

    Applicant: Oliver Briggs, Jr. ,  Kevin Connolly ,  Kevin Greco ,  Philip Lafave ,  Galen Richards

    Inventor： Oliver Briggs, Jr. ,  Kevin Connolly ,  Kevin Greco ,  Philip Lafave ,  Galen Richards

    IPC: F23C1/12 ,  F23D1/00

    CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2900/01001

    Abstract: A pulverized solid fuel nozzle assembly 34 includes a fuel feed pipe 38 and a nozzle tip 36 pivotally secured relative to the fuel feed pipe 38. The fuel feed pipe 38 includes a generally cylindrical shell 99 having a round outlet end 102 and a bulbous protrusion 106 disposed around a perimeter of the round outlet end 102. The nozzle tip 36 includes an inner shell 40 having a round inlet end 108 arranged in concentric relationship with the round outlet end 102 of the generally cylindrical shell 99. The round inlet end 108 is disposed around the bulbous protrusion 106 for forming a seal between the inner shell 40 and the fuel feed pipe 38. The nozzle tip 36 also includes an outer shell 39 arranged in coaxial relationship with the inner shell 40, and an annular air channel 42 disposed between the inner and outer shells 40, 39. The nozzle tip 36 is pivotable about at least one axis 52, 250 for directing a stream of pulverized solid fuel from the inner shell 40.

    Abstract translation: 粉碎的固体燃料喷嘴组件34包括燃料供给管38和相对于燃料供给管38枢转地固定的喷嘴尖端36。 燃料供给管38包括具有圆形出口端102和围绕圆形出口端102的周边设置的球形突起106的大致圆柱形壳体99。 喷嘴尖端36包括具有圆形入口端108的内壳40，圆形入口端108布置成与大致圆柱形壳体99的圆形出口端102同心。 圆形入口端108设置在球根突起106周围，用于在内壳40和燃料供给管38之间形成密封。 喷嘴尖端36还包括与内壳40同轴关系设置的外壳39和设置在内壳40和外壳39之间的环形空气通道42。 喷嘴尖端36围绕至少一个轴线52,250枢转，用于引导来自内壳40的粉碎的固体燃料流。

    Pulverized solid fuel nozzle tip with ceramic component
    6.
    发明授权
    Pulverized solid fuel nozzle tip with ceramic component 有权
    具有陶瓷部件的粉碎固体燃料喷嘴尖端

    公开(公告)号：US06439136B1

    公开(公告)日：2002-08-27

    申请号：US09899008

    申请日：2001-07-03

    Applicant: Jeffrey S. Mann ,  Ronald H. Nowak

    Inventor： Jeffrey S. Mann ,  Ronald H. Nowak

    IPC: F23D100

    CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2201/20 ,  F23D2201/30 ,  Y10S239/19

    Abstract: A (MRFC) solid fuel nozzle tip (12) that is particularly suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system of the type employed in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle tip (12) includes fuel air shroud means (46), primary air shroud means (48) located within the fuel air shroud means (46), fuel air shroud support means (50) operative for supporting the primary air shroud means (48) relative to the fuel air shroud means (46), and splitter plate means (52) mounted in supported relation within the primary air shroud means (48). The MRFC solid fuel nozzle tip (12) may be comprised of ceramics including silicon nitride, siliconized silicon carbide, mullite bonded silicon carbide alumina composite, and alumina zirconia composites.

    Abstract translation: 一种（MRFC）固体燃料喷嘴尖端（12），其特别适于与粉碎的固体燃料燃烧炉（10）中使用的燃烧系统的粉碎固体燃料喷嘴（34）协作地相关联。 MRFC固体燃料喷嘴末端（12）包括燃料空气罩（46），位于燃料空气罩体（46）内的主空气罩装置（48），燃料空气罩支撑装置（50），用于支撑一次空气 护罩装置（48）相对于燃料空气护罩装置（46），以及分离板装置（52），其以支撑的方式安装在主空气罩装置（48）内。 MRFC固体燃料喷嘴头（12）可以由包括氮化硅，硅化碳化硅，莫来石粘合的碳化硅氧化铝复合材料和氧化铝氧化锆复合材料的陶瓷组成。

    Boundary layer coal nozzle assembly for steam generation apparatus
    7.
    发明授权
    Boundary layer coal nozzle assembly for steam generation apparatus 失效
    用于蒸汽发生装置的边界层煤喷嘴组件

    公开(公告)号：US6003793A

    公开(公告)日：1999-12-21

    申请号：US577610

    申请日：1995-12-22

    Applicant: Jeffrey S. Mann

    Inventor： Jeffrey S. Mann

    IPC: F23D1/00 ,  F23K3/02 ,  B05B15/08

    CPC classification number: F23D1/00 ,  F23D2201/101

    Abstract: A steam generating system includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip that is generally sleeve shaped and dimensioned to overlap an axial extremity of the body. The tip is mounted for pivotal movement about the extremity of the body and the nozzle tip includes first and second surfaces dimensioned and configured for receiving therebetween all flow from the body. The apparatus also includes a seat plate that is also generally sleeve shaped and dimensioned and configured to provide sealing between the extremity and the nozzle tip. The seal plate is mounted for pivotal movement about the extremity of the body and is dimensioned and configured to have third and fourth surfaces disposed respectively in closely spaced relationship to the first and second surfaces throughout all possible pivotal positions of the seal plate and the nozzle tip. This closely spaced relationship defines an elongated slat for passage of air. The seal plate includes a stop to limit relative pivotal motion between the nozzle tip and the seal plate. The first and second planar surfaces are disposed with the plan thereof parallel to the direction of flow of gases and thus allow the gases to pass through the slot without impediment.

    Abstract translation: 蒸汽发生系统包括用于粉煤和空气的喷嘴，其包括在其轴向部分处具有喷嘴的细长的大致圆柱形主体。 该装置还包括喷嘴头，该喷嘴头通常是套筒形的并且尺寸设计成与主体的轴向末端重叠。 所述尖端被安装成绕所述主体的所述末端枢转运动，并且所述喷嘴尖端包括第一和第二表面，所述第一表面和第二表面的尺寸和构造用于在所述主体之间接收所有来自所述主体的流动。 该装置还包括座板，其也通常为套筒形并且尺寸和构造成在末端和喷嘴尖端之间提供密封。 密封板安装成围绕主体的末端枢转运动，并且其尺寸和构造成使得第三和第四表面在密封板和喷嘴尖端的所有可能的枢转位置处分别与第一和第二表面以紧密间隔的关系设置 。 这种紧密间隔的关系限定了用于空气通过的细长板条。 密封板包括止动件，以限制喷嘴头和密封板之间的相对枢转运动。 第一和第二平面的平面布置成平行于气体的流动方向，从而允许气体通过狭槽而没有障碍物。

    Split nozzle tip for pulverized coal burner
    8.
    发明授权
    Split nozzle tip for pulverized coal burner 失效
    用于粉煤燃烧器的分嘴喷嘴

    公开(公告)号：US4634054A

    公开(公告)日：1987-01-06

    申请号：US712454

    申请日：1985-03-14

    Applicant: John Grusha

    Inventor： John Grusha

    IPC: F23C5/06 ,  F23C7/02 ,  F23D1/00 ,  F23K3/02

    CPC classification number: F23D1/00 ,  F23C5/06 ,  F23C7/02 ,  F23D2201/101

    Abstract: An improved nozzle tip (30) which provides enhanced ignition and stabilization of pulverized fuel flames in furnaces operating at low load. The nozzle tip (30) comprises open-ended inner and outer shells (32,34) mounted to the fuel delivery pipe (12) and defining a flow passageway within the inner shell through which the pulverized fuel is directed into the furnace and an annular flow passageway (50) between the inner and outer shells through which additional air is directed into the furnace. A pair of diverging splitter plates (41,42) are disposed within the inner shell (32) so as to divide the flow passageway therethrough into two separate, diverging subpassages (52,54) so that the pulverized fuel stream discharging from the fuel delivery pipe is split into first and second streams (60,70) which pass from the nozzle tip (30) into the furnace in a diverging manner thereby establishing an ignition stabilizing pocket in the low pressure zone (80) created between the diverging fuel streams.

    Abstract translation: 改进的喷嘴尖端（30），其在低负荷运行的炉子中提供粉煤燃料火焰的提高点火和稳定性。 喷嘴尖端（30）包括安装在燃料输送管（12）上的开放式内外壳（32,34），并且在内壳内限定流动通道，粉碎的燃料通过该通道被引入炉内， 内壳和外壳之间的流动通道（50），通过该通道将额外的空气引导到炉中。 一对发散的分流板（41,42）设置在内壳（32）内，以将流动通道分成两个分开的发散的次通道（52,54），使得从燃料输送 管道被分成从分歧喷嘴（30）进入炉中的第一和第二流（60,70），从而在分散的燃料流之间形成的低压区（80）中建立点火稳定袋。

    Method for low load operation of a coal-fired furnace
    9.
    发明授权
    Method for low load operation of a coal-fired furnace 失效
    燃煤炉低负荷运行方法

    公开(公告)号：US4434727A

    公开(公告)日：1984-03-06

    申请号：US503079

    申请日：1983-06-13

    Applicant: Michael S. McCartney

    Inventor： Michael S. McCartney

    IPC: F23C5/06 ,  F23C7/02 ,  F23D1/00 ,  F23K3/02

    CPC classification number: F23C5/06 ,  F23C7/02 ,  F23D1/00 ,  F23D2201/101

    Abstract: When a pulverized coal-fired furnace is operating at low loads, the primary air and pulverized coal stream discharging from the coal delivery pipe is split into a first and a second coal-air stream and independently directed into the furnace by tilting at least one of the streams away from the other, thereby establishing an ignition stabilizing pocket in the locally low pressure zone created between the spread apart coal-air streams.

    Abstract translation: 当粉煤燃烧炉以低负荷运行时，从煤输送管排出的一次空气和粉煤流被分成第一和第二煤 - 空气流，并通过倾斜至少一个 流离开另一个，从而在分散的煤 - 空气流之间产生的局部低压区域中建立点火稳定袋。

    Low load coal nozzle
    10.
    发明授权
    Low load coal nozzle 失效
    低负荷煤喷嘴

    公开(公告)号：US4274343A

    公开(公告)日：1981-06-23

    申请号：US29606

    申请日：1979-04-13

    Applicant: Angelos Kokkinos

    Inventor： Angelos Kokkinos

    IPC: F23D1/00 ,  F23K3/02

    CPC classification number: F23D1/00 ,  F23D2201/101

    Abstract: An improved fuel-air admission assembly having a plate disposed along the longitudinal axis of the coal delivery pipe. The leading edge of the plate is orientated across the inlet end of the coal delivery pipe so that the high coal concentration portion of the primary air-pulverized coal stream discharging along the outer radius of the main fuel pipe outlet elbow is separated from the low coal concentration portion of the primary air-pulverized coal stream discharging along the inner radius of the main fuel pipe outlet elbow. The trailing edge of the plate is orientated across the outlet end of the coal delivery pipe so that the high and low coal concentration streams are directed into the furnace through separate nozzles.

    Abstract translation: 一种改进的燃料空气进入组件，其具有沿煤输送管的纵向轴线设置的板。 板的前缘沿煤炭输送管的入口端定向，从而沿着主燃料管出口弯头的外半径排出的一次空气粉煤流的高煤浓度部分与低煤分离 主要空气粉煤流的浓缩部分沿着主燃料管出口弯头的内半径排放。 板的后缘定向在煤输送管的出口端，使得高浓度和低煤浓度的流通过单独的喷嘴引入炉中。

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