公开(公告)号：WO2009114331A2

公开(公告)日：2009-09-17

申请号：PCT/US2009035801

申请日：2009-03-03

Applicant: ALSTOM TECHNOLOGY LTD ,  DONAIS RICHARD E

Inventor： DONAIS RICHARD E ,  HELLEWELL TODD D ,  LEWIS ROBERT D ,  RICHARDS GALEN H ,  TOWLE DAVID P

IPC: F23D1/00

CPC classification number: F23D1/00 ,  F23C7/008 ,  F23D2201/101 ,  F23D2201/20

Abstract: A nozzle tip (100) for a pulverized solid fuel pipe nozzle (200) of a pulverized solid fuel-fired furnace includes: a primary air shroud (120) having an inlet (102) and an outlet (104), wherein the inlet (102) receives a fuel flow (230); and a flow splitter (180) disposed within the primary air shroud (120), wherein the flow splitter disperses particles in the fuel flow (230) to the outlet (104) to provide a fuel flow jet which reduces NOx in the pulverized solid fuel-fired furnace. In alternative embodiments, the flow splitter (180) may be wedge shaped and extend partially or entirely across the outlet (104). In another alternative embodiment, flow splitter (180) may be moved forward toward the inlet (102) to create a recessed design.

Abstract translation: 用于粉碎固体燃料燃烧炉的粉碎固体燃料管嘴（200）的喷嘴尖端（100）包括：具有入口（102）和出口（104）的主空气罩（120），其中入口 102）接收燃料流（230）; 以及设置在所述主空气罩（120）内的分流器（180），其中所述流动分配器将所述燃料流（230）中的颗粒分散到所述出口（104），以提供燃料流喷射，其减少所述粉碎的固体燃料中的NOx 燃烧炉。 在替代实施例中，分流器（180）可以是楔形的并且部分地或全部地穿过出口（104）延伸。 在另一替代实施例中，流动分流器（180）可以朝着入口（102）向前移动以产生凹陷设计。

公开(公告)号：WO2008154080A3

公开(公告)日：2009-04-23

申请号：PCT/US2008061854

申请日：2008-04-29

Applicant: ALSTOM TECHNOLOGY LTD ,  MANN JEFFREY S

Inventor： MANN JEFFREY S

IPC: F23D1/00 ,  F23C5/02

CPC classification number: F23D1/00 ,  F23C5/02 ,  F23D2201/101 ,  F23D2213/00

Abstract: An outer shroud for a solid fuel nozzle tip includes: an top shell portion and a bottom shell portion, each portion fabricated from a preform produced from a single sheet of flat stock and each shell portion including a forward area and a backward area and outlet sidewalls, wherein a right outlet sidewall and a left outlet sidewall are each separated from the forward area by a rounded corner; and a left inlet sidewall and a right inlet sidewall coupled to the top shell portion and the bottom shell portion.

Abstract translation: 用于固体燃料喷嘴尖端的外护罩包括：顶壳部分和底壳部分，每个部分由由单片扁平坯料制成的预成型件制成，并且每个壳部分包括前部区域和后部区域以及出口侧壁 ，其中右出口侧壁和左出口侧壁各自与前区域分开圆角; 以及连接到顶壳部分和底壳部分的左入口侧壁和右入口侧壁。

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.

公开(公告)号：US09857077B2

公开(公告)日：2018-01-02

申请号：US14833449

申请日：2015-08-24

Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

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

IPC: F23K3/02 ,  F23D1/00 ,  F23M11/04 ,  F15D1/04

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.

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。

公开(公告)号：US20160356489A1

公开(公告)日：2016-12-08

申请号：US15241309

申请日：2016-08-19

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Keigo Matsumoto ,  Kazuhiro Domoto ,  Naofumi Abe ,  Jun Kasai

IPC: F23D1/00

CPC classification number: F23D1/005 ,  F23C5/32 ,  F23C6/045 ,  F23C2201/20 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/101 ,  F23D2201/20 ,  F23D2209/20 ,  F23K2203/201 ,  F23L9/00 ,  F23N3/00 ,  F23N2021/10

Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.

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。

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。

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。

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。