公开(公告)号：US08555796B2

公开(公告)日：2013-10-15

申请号：US12238731

申请日：2008-09-26

Applicant: Mark Daniel D'Agostini

Inventor： Mark Daniel D'Agostini

IPC: F23N5/02 ,  F23B80/00

CPC classification number: F23L7/007 ,  F01K3/20 ,  F22B35/002 ,  F23C9/003 ,  F23C9/08 ,  F23C2201/101 ,  F23C2202/50 ,  F23C2900/09001 ,  F23C2900/09002 ,  Y02E20/344

Abstract: An oxy/fuel combustion system having a furnace arranged and disposed to combust a fuel to form a combustion fluid. The system further includes a convective section having at least one heat exchanger arranged and disposed to exchange heat between the combustion fluid and steam for use in a steam turbine. A flue gas recycle is arranged and disposed to recycle at least a portion of the combustion fluid as a recycled flue gas, the flue gas recycle having at least two expellant locations downstream of a primary combustion zone. The system includes a flow control mechanism that provides controlled amounts of the recycled flue gas to the at least two expellant locations to control temperature of the steam.

Abstract translation: 具有布置和设置为燃烧燃料以形成燃烧流体的炉的氧/燃料燃烧系统。 该系统还包括具有至少一个热交换器的对流部分，所述热交换器被布置和设置成在燃烧流体和蒸汽之间交换热量以用于蒸汽轮机。 烟道气再循环被布置和布置成将作为再循环烟道气的至少一部分燃烧流体循环，烟道气再循环具有在主燃烧区下游的至少两个驱逐位置。 该系统包括流量控制机构，其将受控量的再循环烟道气提供给至少两个驱逐位置以控制蒸汽的温度。

公开(公告)号：US08302545B2

公开(公告)日：2012-11-06

申请号：US12389995

申请日：2009-02-20

Applicant: Larry William Swanson ,  Roy Payne ,  Quang H. Nguyen

Inventor： Larry William Swanson ,  Roy Payne ,  Quang H. Nguyen

IPC: F23C1/00 ,  F23L17/16 ,  F23L9/04

CPC classification number: F23C6/045 ,  F23C2201/101 ,  F23C2900/06041 ,  F23L9/02

Abstract: A combustion system for combusting air and fuel includes a primary combustion zone configured to produce combustion gases from the air and the fuel and an intermediate air zone downstream from the primary combustion zone. The intermediate air zone is configured to inject an intermediate air stream into the combustion gases. The combustion system further includes a burnout zone downstream from the intermediate air zone, wherein the burnout zone is configured to inject an overfire air stream into the combustion gases, and at least one hybrid-boosted air injector within at least one of the intermediate air zone and the burnout zone. The at least one hybrid-boosted air injector is configured to substantially simultaneously inject a boosted air stream and a windbox air stream into the combustion gases.

Abstract translation: 用于燃烧空气和燃料的燃烧系统包括被配置为从空气和燃料产生燃烧气体的初级燃烧区域和从主燃烧区域下游的中间空气区域。 中间空气区域构造成将中间气流注入到燃烧气体中。 燃烧系统还包括在中间空气区域下游的燃烧区域，其中燃烧区域被配置为将过量空气流喷射到燃烧气体中，以及在至少一个中间空气区域内的至少一个混合增压空气喷射器 和倦怠区。 所述至少一个混合增压空气喷射器构造成基本上同时将增压空气流和风箱气流注入到燃烧气体中。

公开(公告)号：US20120137938A1

公开(公告)日：2012-06-07

申请号：US13390597

申请日：2010-08-03

Applicant: Akihito Orii ,  Hirofumi Okazaki ,  Yusuke Ochi

Inventor： Akihito Orii ,  Hirofumi Okazaki ,  Yusuke Ochi

IPC: F23L9/04 ,  F23C7/00 ,  F23M9/00 ,  F23C6/04

CPC classification number: F23C6/047 ,  F22B21/00 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/101 ,  F23L9/04

Abstract: A pulverized coal boiler of the present invention is structured so as to form, among upper and lower after-air nozzles, an opening serving as an outlet of the lower after-air nozzle positioned on the upstream side is formed in a rectangular shape, a cylindrical section for defining a minimum flow path area of combustion air flowing through a flow path of the after-air nozzle is installed inside of the lower after-air nozzles along the flow path of the lower after-air nozzle, and a swirl blade for giving a swirl force to the combustion air flowing through the flow path of the after-air nozzles is installed inside of the cylindrical section, and the flow path of the lower after-air nozzles is formed so that a flow path area of the flow path of the after-air nozzles through which the combustion air flows from a position where the cylindrical section is installed toward the opening of each of the lower after-air nozzles is expanded.

Abstract translation: 本发明的粉煤锅炉的结构是，在上下排气喷嘴之间形成有位于上游侧的下排气喷嘴的出口的开口形成矩形， 用于限定流过后空气喷嘴的流路的燃烧空气的最小流路面积的圆柱形部分沿着下部后空气喷嘴的流动路径安装在下部后空气喷嘴内部，以及用于 向流经空气喷嘴的流路的燃烧空气施加涡旋力，安装在圆筒部内部，并且形成下部后空气喷嘴的流路，使得流路的流路面积 燃烧空气从安装有圆筒形部分的位置朝着每个下部后空气喷嘴的开口流过的后空气喷嘴被扩大。

公开(公告)号：US08176911B2

公开(公告)日：2012-05-15

申请号：US12710734

申请日：2010-02-23

Applicant: Robert W. Waltz ,  Quang H. Nguyen

Inventor： Robert W. Waltz ,  Quang H. Nguyen

IPC: F23D11/00 ,  F01N3/00

CPC classification number: F23L9/02 ,  F23C2201/101 ,  F23L13/06

Abstract: A method to regulate overfire air passing through an overfire air duct and entering a flue gas stream in a combustion system including: directing overfire air into an inlet of the overfire air duct, passing the overfire air through the duct and discharging the overfire air into the flue gas stream in the combustion system; adjusting a flow rate of overfire air entering the inlet using a damper adjacent the inlet, and moving the damper parallel along an axis of the overfire air duct to increase and decrease the overfire air entering the inlet, wherein the damper has an open position at which the damper is extended out of the inlet and a closed position in which the damper is substantially in the inlet and blocking air entering the inlet.

Abstract translation: 一种用于调节过火空气通过过火空气管道并进入燃烧系统中的烟气流的方法，包括：将过热空气引导到过火空气管道的入口中，使过热空气通过管道并将过热空气排放到 燃烧系统中的烟道气; 使用邻近入口的阻尼器调节进入入口的过热空气的流量，并且沿着过火空气管道的轴线平移地移动阻尼器，以增加和减少进入入口的过火空气，其中阻尼器具有打开位置 阻尼器从入口延伸出来并且关闭位置，其中阻尼器基本上在入口中并阻止进入入口的空气。

公开(公告)号：US20110142739A1

公开(公告)日：2011-06-16

申请号：US13030599

申请日：2011-02-18

Applicant: Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

Inventor： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC: B01D53/56

CPC classification number: B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

Abstract: A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide, and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

Abstract translation: 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从第一喷射器的超燃空气向容器的燃尽区提供过量的空气，以氧化烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过量空气同时喷射选择性还原剂，并使选择性还原剂与烟道气反应以还原氮氧化物。

公开(公告)号：US07569200B2

公开(公告)日：2009-08-04

申请号：US11628009

申请日：2005-06-02

Applicant: Edgardo Coda Zabetta ,  Mikko Hupa ,  Kari Saviharju

Inventor： Edgardo Coda Zabetta ,  Mikko Hupa ,  Kari Saviharju

IPC: B01D53/54 ,  B01D53/56 ,  F23C7/00 ,  F23G7/04 ,  F23G7/06 ,  F23J15/00

CPC classification number: D21C11/122 ,  B01D53/56 ,  F23C6/045 ,  F23C2201/101 ,  F23C2900/06041 ,  F23G7/04 ,  F23J7/00

Abstract: The present invention relates to a method for reducing nitrogen oxide emissions in combustion. Fuel is combusted in a first zone, whereby nitrogen oxides are generated. Supplementary fuel is fed in another zone under reducing conditions. At the same time, the temperature is adjusted so that nitrogen oxides convert essentially to hydrogen cyanide. Finally, air is fed in for finalizing the combustion and converting the hydrogen cyanide into nitrogen.

Abstract translation: 本发明涉及一种减少燃烧中氮氧化物排放的方法。 燃料在第一区域燃烧，由此产生氮氧化物。 补充燃料在还原条件下进入另一个区域。 同时，调节温度使氮氧化物基本上转化为氰化氢。 最后，送入空气以完成燃烧并将氰化氢转化成氮气。

公开(公告)号：US20090084346A1

公开(公告)日：2009-04-02

申请号：US11863960

申请日：2007-09-28

Applicant: Wei Zhou ,  David K. Moyeda ,  William T. Lipinski ,  Quang H. Nguyen ,  Larry W. Swanson

Inventor： Wei Zhou ,  David K. Moyeda ,  William T. Lipinski ,  Quang H. Nguyen ,  Larry W. Swanson

IPC: F02F3/26

CPC classification number: F23L9/02 ,  F23C7/02 ,  F23C2201/101 ,  F23C2900/07021 ,  F23M9/02

Abstract: An improved gas flow injector has been developed for use in a combustion system. The gas flow injector has an inner nozzle with tubular configuration for directing a first gas stream to a location distal to the gas flow injector. The inner nozzle has an outlet end portion and a longitudinal central axis. Disposed about the inner nozzle is an outer nozzle having a tubular configuration, for directing a second gas stream to a location proximal to the gas flow injector. A diverter is mounted to the outlet end portion of the inner nozzle and extends at least partially into the second gas stream. The diverter has a surface disposed at an acute angle relative to the longitudinal central axis of the inner nozzle to redirect at least a portion of the second gas stream in a direction transverse to the longitudinal central axis. Also disclosed is a method of injecting a gas into a combustion system using the gas flow injector of this invention.

Abstract translation: 已经开发了用于燃烧系统的改进的气流注入器。 气流注入器具有带有管状构造的内部喷嘴，用于将第一气流引导到远离气流注入器的位置。 内部喷嘴具有出口端部分和纵向中心轴线。 围绕内部喷嘴设置的是具有管状构造的外部喷嘴，用于将第二气体流引导到靠近气体流动注入器的位置。 分流器安装到内部喷嘴的出口端部分并且至少部分地延伸到第二气体流中。 分流器具有相对于内部喷嘴的纵向中心轴线成锐角设置的表面，以使第二气流的至少一部分在横向于纵向中心轴线的方向上重新定向。 还公开了使用本发明的气流注入器将气体注入燃烧系统的方法。

公开(公告)号：US20080286706A1

公开(公告)日：2008-11-20

申请号：US11804362

申请日：2007-05-18

Applicant: Peter R. Ponzi ,  Francesco Bertola ,  Robert J. Gartside

Inventor： Peter R. Ponzi ,  Francesco Bertola ,  Robert J. Gartside

IPC: F23D14/46

CPC classification number: F23C6/047 ,  C10G9/206 ,  C10G2400/20 ,  F23C2201/101

Abstract: A furnace, firing pattern and method of operating a heater that employs a combination of hearth burners and wall burners for the cracking of hydrocarbons is described. The firing pattern leads to improvements in the uniformity of the coil metal temperatures and vertical heat flux profiles over the firebox elevation. The hearth burners operate with a stoichiometric excess of air while the wall burners operate with less than the stoichiometric amount of air.

Abstract translation: 描述了使用采用炉式燃烧器和壁式燃烧器的组合的加热器的炉子，燃烧模式和方法来开裂烃类。 焙烧模式导致线圈金属温度的均匀性和垂直热通量分布在火箱高度上的改进。 炉底燃烧器以化学计量过量的空气运行，而壁式燃烧器以小于化学计量的空气运行。

公开(公告)号：US20080241029A1

公开(公告)日：2008-10-02

申请号：US11692010

申请日：2007-03-27

Applicant: Vitali Victor Lissianski ,  Peter Martin Maly ,  William Randall Seeker

Inventor： Vitali Victor Lissianski ,  Peter Martin Maly ,  William Randall Seeker

IPC: F01N3/08 ,  B01D50/00 ,  B01D53/34 ,  F01N7/16 ,  F23J11/00 ,  C01G13/00 ,  C22B43/00

CPC classification number: B01D53/8665 ,  B01D53/10 ,  B01D2251/108 ,  B01D2253/108 ,  B01D2253/304 ,  B01D2255/702 ,  B01D2255/906 ,  B01D2255/9202 ,  B01D2257/602 ,  F23C2201/101 ,  F23D1/00 ,  F23J15/003 ,  F23J15/04 ,  F23J15/06 ,  F23J2215/60 ,  F23L9/04 ,  Y02E20/363

Abstract: A method for reducing an amount of mercury in flue gases generated by the combustion of coal is provided. The method includes combusting a quantity of coal and a quantity of air within a primary combustion area such that a fly ash containing carbon and elemental mercury is formed within the flue gases, supplying air to the primary combustion area such that a portion of the air is channeled to an overfire air burnout area downstream from the primary combustion area to facilitate increasing an amount of the carbon content in the fly ash, cooling the flue gases to facilitate oxidizing the elemental mercury using the carbon content in the fly ash, and injecting sorbent into the flue gases to facilitate further reducing the amount of mercury in the flue gases.

Abstract translation: 提供了一种减少煤燃烧产生的烟道气中的汞的方法。 该方法包括在主燃烧区域内燃烧一定数量的煤和一定量的空气，使得在烟道气中形成含有碳和元素汞的飞灰，将空气供应到主燃烧区域，使得空气的一部分为 引导到主燃烧区域下游的过火空气排放区域，以便于增加飞灰中碳含量的量，冷却烟道气以便利用飞灰中的碳含量氧化元素汞，并将吸附剂注入 烟道气有利于进一步减少烟气中的汞含量。

公开(公告)号：US07374735B2

公开(公告)日：2008-05-20

申请号：US10454597

申请日：2003-06-05

Applicant: Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

Inventor： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC: B01D53/56

CPC classification number: B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

Abstract: A method of decreasing the concentration of nitrogen oxides in a combustion gas flowing through a vessel including the steps of: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of the overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with the overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide; and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

Abstract translation: 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括以下步骤：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从所述过火空气的第一喷射器向所述容器的燃烧区域提供过热空气以氧化所述烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过热空气同时喷射选择性还原剂; 并使选择性还原剂与烟道气反应以还原氮氧化物。