公开(公告)号：US20100064986A1

公开(公告)日：2010-03-18

申请号：US12442745

申请日：2007-03-27

Applicant: Kenji Kiyama ,  Akira Baba ,  Takanori Yano ,  Osamu Okada ,  Hirofumi Okazaki ,  Kouji Kuramashi

Inventor： Kenji Kiyama ,  Akira Baba ,  Takanori Yano ,  Osamu Okada ,  Hirofumi Okazaki ,  Kouji Kuramashi

IPC: F24H1/00 ,  F23L9/00 ,  F23C1/10

CPC classification number: F23D1/005 ,  F22B1/1869 ,  F22B21/26 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20

Abstract: The present invention provides a solid fuel burner, which, while rendering the capacity larger than that in the conventional art, can suppress an increase in an unignited region and thus can realize the prevention of an increase in NOx concentration in a combustion gas and the prevention of a lowering in combustion efficiency, and a combustion equipment and boiler including the burner. The burner includes a fuel-containing fluid supply nozzle (12) which supplies a fuel-containing fluid, from a connecting part in a fluid transfer flow passage (10) for transferring a fuel-containing fluid including a fuel and a medium for transfer of the fuel, toward an outlet part provided on the wall of a furnace (4). The fuel-containing fluid supply nozzle (12) in its cross section perpendicular to the direction of flow of the fluid is in a rectangular, elliptical, or substantially elliptical form having major and minor axis parts from a connecting part (10a) in the fluid transfer flow passage (10) toward the outlet part provided on the wall surface of the furnace (4). Further, the area of a cross section perpendicular to the direction of flow of the fluid is gradually increased from the connecting part in the fluid transfer flow passage (10) toward the outlet part. One or more air supply nozzles (15) for supplying combustion air are provided on the outer peripheral part of the nozzle (12).

Abstract translation: 本发明提供一种固体燃料燃烧器，其在使现有技术中的容量大的同时，可以抑制未燃区域的增加，从而可以实现防止燃烧气体中的NOx浓度的增加和防止 燃烧效率降低，以及包括燃烧器的燃烧设备和锅炉。 燃烧器包括一个含燃料的流体供应喷嘴（12），该燃料供给流体供应喷嘴（12）从用于传送包含燃料的含燃料流体和用于转移的介质的流体转移流动通道（10）中的连接部分提供含燃料流体 燃料，朝向设置在炉（4）的壁上的出口部分。 在与流体的流动方向垂直的横截面中的含燃料流体供给喷嘴（12）呈矩形，椭圆形或基本上椭圆形，具有从流体中的连接部分（10a）的主轴和短轴部分 转移流道（10）朝向设置在炉（4）的壁表面上的出口部分。 此外，垂直于流体流动方向的横截面的面积从流体传送流路（10）中的连接部朝向出口部逐渐增大。 在喷嘴（12）的外周部设置有用于供给燃烧空气的一个或多个供气喷嘴（15）。

公开(公告)号：US20090061370A1

公开(公告)日：2009-03-05

申请号：US11846238

申请日：2007-08-28

Applicant: Steven L. DOUGLAS

Inventor： Steven L. DOUGLAS

IPC: F23D11/38

CPC classification number: F23D1/00 ,  C10J3/485 ,  C10J3/506 ,  C10J3/721 ,  C10J2200/09 ,  C10J2200/152 ,  C10J2300/093 ,  C10J2300/0943 ,  F23D2201/10 ,  F23D2201/30 ,  F23D2900/00018 ,  Y10T29/49348

Abstract: A burner comprises a body, a nozzle, and at least one attachment element for removably attaching the nozzle to the body. The body defines an oxidant inlet, a feedstock inlet, a body outlet, and one or more passages for conveying the oxidant from the oxidant inlet to the body outlet and for conveying the gasification feedstock from the feedstock inlet to the body outlet. The nozzle defines a nozzle inlet and a nozzle outlet, wherein the nozzle inlet is configured to receive the oxidant and the gasification feedstock from the body outlet and the nozzle outlet is configured to discharge the oxidant and the gasification feedstock into the reaction chamber. The at least one attachment element removably attaches the nozzle to the body such that the nozzle inlet is in fluid flow communication with the body outlet when the nozzle is attached to the body.

Abstract translation: 燃烧器包括主体，喷嘴和用于将喷嘴可移除地附接到主体的至少一个附接元件。 主体限定氧化剂入口，原料入口，主体出口和用于将氧化剂从氧化剂入口输送到主体出口的一个或多个通道，以及用于将气化原料从原料入口输送到主体出口。 喷嘴限定喷嘴入口和喷嘴出口，其中喷嘴入口构造成从主体出口接收氧化剂和气化原料，并且喷嘴出口构造成将氧化剂和气化原料排放到反应室中。 所述至少一个附接元件将所述喷嘴可移除地附接到所述主体，使得当所述喷嘴附接到所述主体时，所述喷嘴入口与所述主体出口流体连通。

公开(公告)号：US20080276845A1

公开(公告)日：2008-11-13

申请号：US12151405

申请日：2008-05-06

Applicant: Dietmar Degenkolb ,  Christian Reuther ,  Manfred Schingnitz

Inventor： Dietmar Degenkolb ,  Christian Reuther ,  Manfred Schingnitz

IPC: F23D1/00

CPC classification number: F23D1/02 ,  F23D2201/10 ,  F23D2900/01001

Abstract: Disclosed is a burner for oxidant gasification of pulverized fuels under high pressures, e.g. 80 bar, and temperatures, e.g. 1200 to 1900° C., in reactors with liquid slag removal for oxygen gasification. The individual pulverized coal supply tubes in the burner are inclined toward the burner axis in the direction of the burner mouth, are implemented equiareally from the burner inlet up to the burner outlet, and end at the burner mouth adjacent to the oxidant outlet. Owing to the pulverized fuel feeding elements being implemented right up to the burner mouth and the instantaneous entry of the pulverized coal into the rotating oxygen stream there is no longer any areal discontinuity at the dust outlet, since here the pulverized coal stream is immediately sucked into the oxidant stream. At the outlet of the media the individual pulverized coal streams merge into a single rotating pulverized coal/oxygen stream, thereby achieving an even flame spread and stabilization.

Abstract translation: 公开了一种用于高压下粉碎燃料的氧化气化的燃烧器，例如， 80巴，和温度，例如 1200至1900℃，在具有用于氧气气化的液体除渣的反应器中。 燃烧器中的单独的粉煤供应管沿着燃烧器口的方向朝向燃烧器轴线倾斜，从燃烧器入口等距地施加到燃烧器出口，并且在靠近氧化剂出口的燃烧器口处终止。 由于粉碎的燃料供给元件被直接施加到燃烧器口，并且粉煤瞬时进入旋转的氧气流中，在灰尘出口处不再具有任何区域不连续性，因为这里将粉煤流立即吸入 氧化剂流。 在介质的出口处，单个粉煤流合并成单个旋转的粉煤/氧气流，从而实现均匀的火焰蔓延和稳定化。

公开(公告)号：US20050092220A1

公开(公告)日：2005-05-05

申请号：US11011047

申请日：2004-12-15

Applicant: Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

IPC: F24B1/187 ,  F23D1/00

CPC classification number: F23C6/045 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/20 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

Abstract: A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

Abstract translation: 提供了使用低氧浓度气体作为低等固体燃料如褐煤等的输送气体的固体燃料燃烧器和使用固体燃料燃烧器的燃烧方法。 固体燃料燃烧器包括用于加速燃料点火的装置和用于防止由燃烧灰发生的堵塞的装置。 燃料喷嘴11内的燃料和空气的混合通过在燃料喷嘴11中设置有附加的空气喷嘴12和用于分离流路的分离器35而加速，并且附加空气喷嘴12的出口被设定在位置 以便在从与燃烧器轴垂直的方向观察时与分离器35重叠，并且附加空气沿与流过燃料喷嘴11的燃料射流的流动方向几乎垂直的方向喷射。 来自附加空气喷嘴12的空气量相应于燃烧负荷而变化。 通过在低负载运转下增加来自附加空气喷嘴12的空气量，形成在燃料喷嘴11的出口外的下游部分的循环流19的氧浓度增加，以稳定地燃烧燃料。 通过在高负荷运转下减少来自附加空气喷嘴12的空气量，在远离燃料喷嘴11的位置处形成火焰，以抑制由固体燃料燃烧器的结构和炉壁接收的辐射热。

公开(公告)号：US20040211345A1

公开(公告)日：2004-10-28

申请号：US10292694

申请日：2002-11-13

Applicant: Hitachi, Ltd. ,  Babcock-Hitachi K.K.

Inventor： Hirofumi Okazaki ,  Masayuki Tanaiguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

IPC: F23C001/10 ,  F23D001/00

CPC classification number: F23C6/045 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/20 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

Abstract: A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

Abstract translation: 提供了使用低氧浓度气体作为低等固体燃料如褐煤等的输送气体的固体燃料燃烧器和使用固体燃料燃烧器的燃烧方法。 固体燃料燃烧器包括用于加速燃料点火的装置和用于防止由燃烧灰发生的堵塞的装置。 燃料喷嘴11内的燃料和空气的混合通过在燃料喷嘴11中设置有附加的空气喷嘴12和用于分离流路的分离器35而加速，并且附加空气喷嘴12的出口被设定在位置 以便当从垂直于燃烧器轴线的方向观察时与分离器35重叠，并且附加空气沿与流过燃料喷嘴11的燃料射流的流动方向几乎垂直的方向喷射。来自 额外的空气喷嘴12对应于燃烧负荷而变化。 通过在低负载运转下增加来自附加空气喷嘴12的空气量，形成在燃料喷嘴11的出口外的下游部分的循环流19的氧浓度增加，以稳定地燃烧燃料。 通过在高负荷运转下减少来自附加空气喷嘴12的空气量，在远离燃料喷嘴11的位置处形成火焰，以抑制由固体燃料燃烧器的结构和炉壁接收的辐射热。

公开(公告)号：US06474250B1

公开(公告)日：2002-11-05

申请号：US09864645

申请日：2001-05-24

Applicant: Craig A. Penterson ,  Richard J. Dube ,  Bonnie Courtemanche

Inventor： Craig A. Penterson ,  Richard J. Dube ,  Bonnie Courtemanche

IPC: F23C110

CPC classification number: F23D1/02 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

Abstract: A mixture of pulverized coal and primary air travels axially through a tubular nozzle body having an outlet end in and surrounded by axially flowing concentric streams of secondary and often tertiary air. In the nozzle body, the coal/air mixture flows through a venturi that concentrates the coal in a fuel rich central zone. The coal/air mixture then flows through a spreader that imparts a swirling motion to the mixture and divides the mixture into multiple discrete lobes or streams. At the outlet end of the nozzle body, a flame stabilizer ring produces a separation zone between the coal/air mixture exiting the nozzle body and the surrounding flow of secondary air. The flame stabilizer ring includes an outwardly flared skirt section that spreads the secondary air flow and inwardly directed teeth that extend into the streams of coal/air mixture flowing from the nozzle body outlet.

Abstract translation: 粉煤和一次空气的混合物轴向地通过管状喷嘴体，该管状喷嘴体的出口端在第二和常规三次空气的轴向流动的同心流中包围。 在喷嘴体中，煤/空气混合物流经文丘里管，其将煤浓缩在富含燃料的中心区域中。 煤/空气混合物然后流过扩张器，其向混合物施加旋转运动，并将混合物分成多个不连续的叶或流。 在喷嘴体的出口端，火焰稳定器环在离开喷嘴体的煤/空气混合物和周围的二次空气流之间产生分离区。 火焰稳定器环包括向外扩张的裙部，其扩展二次空气流和向内指向的齿，其延伸到从喷嘴体出口流动的煤/空气混合物流中。

公开(公告)号：US11692705B2

公开(公告)日：2023-07-04

申请号：US16973891

申请日：2020-04-23

Applicant: MITSUBISHI POWER, LTD.

Inventor： Kenji Kiyama ,  Kenichi Ochi ,  Shohei Mito ,  Kosuke Kitakaze ,  Toshihiko Mine

IPC: F23D1/00

CPC classification number: F23D1/00 ,  F23D2201/10 ,  F23D2201/20

Abstract: A solid fuel burner to be inserted into a burner throat bored in a wall portion of a furnace, comprising: a solid fuel nozzle for ejecting mixed fluid of solid fuel and primary air; a secondary air nozzle for ejecting secondary air; a tertiary air nozzle for ejecting tertiary air; a secondary air guide member for guiding a flow of the secondary air outwardly in a radial direction; and one or more tertiary air guide members for guiding a flow of the tertiary air outwardly in the radial direction at a first angle with respect to a central axis (C) of the solid fuel burner, wherein a distal end position (X2) of each of the tertiary air guide members in an axial direction of the solid fuel burner is at a closer side of the furnace than a distal end position (X1) of the secondary air guide member.

公开(公告)号：US20180031232A1

公开(公告)日：2018-02-01

申请号：US15549510

申请日：2016-03-17

Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.

Inventor： Keigo MATSUMOTO ,  Atsushi YUASA ,  Yukihiro TOMINAGA ,  Akimasa TAKAYAMA ,  Kazuhiro DOMOTO ,  Keita TSUKAHARA

IPC: F23K3/02

CPC classification number: F23K3/02 ,  F23C99/00 ,  F23D1/00 ,  F23D1/04 ,  F23D2201/10 ,  F23D2208/00 ,  F23D2900/11401 ,  F23L9/00

Abstract: In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas.

公开(公告)号：US20160169507A1

公开(公告)日：2016-06-16

申请号：US14971614

申请日：2015-12-16

Applicant: Babcock Power Services, Inc.

Inventor： Michael Coyle ,  Dale Utterback ,  Mike Boris

IPC: F23D1/00 ,  B23P19/00

CPC classification number: F23D1/00 ,  F23D2201/10

Abstract: A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler includes a tip body having an inlet and an outlet defining a longitudinal axis therebetween. The tip body includes a slot on an inlet side of the tip body extending in a direction parallel to the longitudinal axis. The slot includes an opening facing the inlet side of the tip body and a recess formed at an angle with respect to the longitudinal axis to at least partially retain a pivot pin. A solid fuel nozzle assembly for issuing a flow of mixed solid fuel and air to a boiler includes a solid fuel nozzle tip with a tip body, as described above, and a locking plate operatively connected to the tip body to assist in retaining a pivot pin within the slot of the tip body.

Abstract translation: 用于向锅炉发出混合固体燃料和空气流的固体燃料喷嘴尖端包括具有限定其间的纵向轴线的入口和出口的末端体。 尖端体包括在平行于纵向轴线的方向上延伸的尖端体入口侧的槽。 狭槽包括面向尖端体的入口侧的开口和相对于纵向轴线以一定角度形成的凹部，以至少部分地保持枢轴销。 用于向锅炉发出混合固体燃料和空气流的固体燃料喷嘴组件包括如上所述的具有尖端主体的固体燃料喷嘴尖端和可操作地连接到尖端体的锁定板，以有助于保持枢轴销 在尖端体的槽内。

公开(公告)号：US20150226431A1

公开(公告)日：2015-08-13

申请号：US14619420

申请日：2015-02-11

Applicant: ALSTOM Technology Ltd

Inventor： Dragisa RISTIC ,  Thomas HILBER ,  Patrick MOENCKERT ,  Frank Michael KLUGER

IPC: F23Q3/00 ,  F23D1/00

CPC classification number: F23Q3/00 ,  F23D1/00 ,  F23D1/04 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2207/00 ,  F23Q3/008 ,  F23Q9/00

Abstract: The igniter lance include a lance fuel duct for pulverised fuel and an electric igniter for ignition of the pulverized fuel passing through the lance fuel duct.

Abstract translation: 点火器喷枪包括用于粉碎燃料的喷枪燃料管道和用于点燃通过喷枪燃料管道的粉碎燃料的电点火器。