公开(公告)号：US20110197829A1

公开(公告)日：2011-08-18

申请号：US13124989

申请日：2009-12-08

Applicant: Nobuo Suemitsu ,  Sadayuki Muto ,  Shinichi Toda ,  Minoru Igarashi

Inventor： Nobuo Suemitsu ,  Sadayuki Muto ,  Shinichi Toda ,  Minoru Igarashi

IPC: F22B37/10

CPC classification number: F23C6/04 ,  F23C5/08 ,  F23C6/045 ,  F23C2201/101 ,  F23G5/165

Abstract: In a low NOx boiler of the present invention, a high-temperature reductive combustion zone is provided to an upper portion of a rectangular combustion chamber, and a second-step combustion zone is provided to a middle stage of the combustion chamber. A wall provided below the second-step combustion zone is tapered to narrow the combustion chamber, with a taper angle of approximately 35° or so, relative to a vertical line. An ash discharge port is provided to a furnace bottom portion, and a gas outlet port communicated with a rear pass water wall is provided to a lower side face of the second-step combustion zone. This rear pass water wall is connected with a further post-treatment step, via a super-heater tube and an economizer.

Abstract translation: 在本发明的低NOx锅炉中，向矩形燃烧室的上部设置高温还原燃烧区，在燃烧室的中间部设置第二级燃烧区。 设置在第二阶段燃烧区下方的壁是锥形的，以相对于垂直线大约35°的锥角使燃烧室变窄。 在炉底部设有排灰口，与第二级燃烧区的下侧面设置有与后通水壁连通的排气口。 该后通水壁通过另外的后处理步骤通过超级加热器管和节能器连接。

公开(公告)号：US20100212556A1

公开(公告)日：2010-08-26

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: F23J15/00 ,  F23C6/04 ,  F23L9/00 ,  F23N1/00

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：US20100143852A1

公开(公告)日：2010-06-10

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: F23L9/00 ,  F23L13/00 ,  F23N3/00

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缓地移动阻尼器，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，在该位置处 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：US20100116183A1

公开(公告)日：2010-05-13

申请号：US12632255

申请日：2009-12-07

Applicant: George C. Dusatko

Inventor： George C. Dusatko

IPC: F23J15/00 ,  F23J7/00 ,  F23C9/06

CPC classification number: F23J7/00 ,  B63C11/52 ,  F23C6/045 ,  F23C2201/101 ,  F23D11/16 ,  F23K5/12

Abstract: An in-furnace combustion application process method and apparatus reduces nitrogen oxides in flue gas by injecting a bitumen, carbon residue or an asphalt water emulsion or a mixture thereof into flue gas so that the three types of emulsions (injected individually or as a blend) mixes with said flue gas. The emulsions are preferably atomized before injection and may also be injected in jet streams.

Abstract translation: 炉内燃烧施用方法和装置通过将沥青，碳残余物或沥青水乳液或其混合物注入烟气中来减少烟道气中的氮氧化物，使得三种类型的乳液（单独注射或作为共混物） 与所述烟气混合。 乳液优选在注射之前被雾化并且也可以以喷射流注入。

公开(公告)号：US20100077946A1

公开(公告)日：2010-04-01

申请号：US12238731

申请日：2008-09-26

Applicant: Mark Daniel D'Agostini

Inventor： Mark Daniel D'Agostini

IPC: F23B80/02 ,  F23B10/00 ,  F23J15/00

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：US07665458B2

公开(公告)日：2010-02-23

申请号：US11749535

申请日：2007-05-16

Applicant: Robert W. Waltz ,  Quang H. Nguyen

Inventor： Robert W. Waltz ,  Quang H. Nguyen

IPC: F23D11/00

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

Abstract: A damper and overfire air duct in a combustion system having a combustion structure defining a flue gas passage, the damper and overfire air duct including: an inlet to the overfire air duct and an outlet to the duct discharging overfire air into the flue gas passage, and the damper aligned with an axis of the overfire air duct, and having an open position axially distal to the inlet and a closed position at least partially in the inlet and duct, wherein the damper is movable axially between the open and closed positions.

Abstract translation: 在具有限定烟道气通道的燃烧结构的燃烧系统中的阻尼器和过火空气管道，所述阻尼器和过火空气管道包括：过火空气管道的入口和管道的出口将过高的空气排放到烟道气通道中， 并且所述阻尼器与所述过火空气管道的轴线对准，并且具有至少部分地在所述入口和管道中轴向远离所述入口的开放位置和闭合位置，其中所述阻尼器可在所述打开位置和关闭位置之间轴向移动。

公开(公告)号：US20090214989A1

公开(公告)日：2009-08-27

申请号：US12036772

申请日：2008-02-25

Applicant: Larry William Swanson ,  Roy Payne

Inventor： Larry William Swanson ,  Roy Payne

IPC: F23C5/00 ,  F23M3/04 ,  F23D11/36

CPC classification number: F23C6/047 ,  F23C2201/101 ,  F23C2201/20 ,  F23D2209/20

Abstract: A method for operating a fuel-fired furnace including at least one burner is provided. The method includes channeling a first fluid flow to the at least one burner at a first predetermined velocity, and channeling a second fluid flow to the at least one burner at a second predetermined velocity during a first mode of operation of the at least one burner. The second predetermined velocity is different than the first predetermined velocity.

Abstract translation: 提供了一种用于操作包括至少一个燃烧器的燃料燃烧炉的方法。 该方法包括以第一预定速度将第一流体流引导至至少一个燃烧器，并且在至少一个燃烧器的第一操作模式期间以第二预定速度将第二流体流引导至至少一个燃烧器。 第二预定速度与第一预定速度不同。

公开(公告)号：US20090214988A1

公开(公告)日：2009-08-27

申请号：US12036739

申请日：2008-02-25

Applicant: Roy Payne ,  Larry William Swanson ,  David Kelly Moyeda ,  Antonio Marquez

Inventor： Roy Payne ,  Larry William Swanson ,  David Kelly Moyeda ,  Antonio Marquez

IPC: F23C9/00 ,  F23M3/02

CPC classification number: F23C6/047 ,  F23C2201/101 ,  F23D17/00 ,  F23L9/04

Abstract: Combustion systems having reduced nitrogen oxide emissions and methods of using the same are disclosed herein. In one embodiment, a combustion system is provided. The combustion system includes a combustion zone, which includes a burner for converting a fuel, under fuel rich conditions, to a flue gas. An intermediate staged air inlet is downstream from the combustion zone, for supplying intermediate staged air to the flue gas and producing fuel lean conditions. A reburn zone is downstream from the intermediate staged air inlet for receiving the flue gas. A process for using the combustion system and a method of reducing NOX flowing into the reburn zone of a combustion system are also described herein.

Abstract translation: 本文公开了具有减少的氮氧化物排放的燃烧系统及其使用方法。 在一个实施例中，提供燃烧系统。 燃烧系统包括燃烧区，燃烧区包括用于在燃料丰富的条件下将燃料转化为烟道气的燃烧器。 中间分段空气入口在燃烧区的下游，用于将中间分级空气供给到烟道气中并产生贫燃条件。 再沸区位于用于接收烟道气的中间分段空气入口的下游。 本文还描述了使用燃烧系统的方法和减少流入燃烧系统的再沸区的NOX的方法。

公开(公告)号：US20080149012A1

公开(公告)日：2008-06-26

申请号：US11883887

申请日：2006-02-09

Applicant: Pauli Dernjatin ,  Marko Fabritius ,  Jukka Roppanen

Inventor： Pauli Dernjatin ,  Marko Fabritius ,  Jukka Roppanen

IPC: F23G7/00 ,  F23C10/22

CPC classification number: F23C10/00 ,  F23C2201/101 ,  F23G5/30 ,  F23G7/10

Abstract: A method for reducing nitrogen oxide emissions of a bubbling fluidized bed boiler burning biofuel and an air distribution system for a bubbling fluidized bed boiler biofuel. A fluidized bed is arranged in a lower part of a furnace of the boiler. The bed is fluidized by fluidizing gas that includes primary air. Fuel is fed to the fluidized bed, which dries and pyrolizes into pyrolysis gas including volatile matter of the fuel. The gas rises upwards in the furnace and burns. Secondary air is supplied above the fluidized bed from secondary air nozzles, and tertiary air is supplied above the secondary air nozzles. A part of primary air is supplied in connection with fuel feeding such that the fuel is forced substantially on the surface of the fluidized bed, thus pyrolizing entirely, and at least a part of the pyrolysis gases formed in the pyrolysis is burned by primary air such that the air coefficient in relation to the volatile matter of fuel in the pyrolysis gases is in the substoichiometric area.

Abstract translation: 一种用于减少燃烧生物燃料的鼓泡流化床锅炉和用于鼓泡流化床锅炉生物燃料的空气分配系统的氮氧化物排放的方法。 流化床布置在锅炉炉的下部。 该床通过包括一次空气的流化气体流化。 将燃料送入流化床，其干燥并热解成包括燃料挥发物质的热解气体。 气体在炉中向上升起并燃烧。 二次空气从二次空气喷嘴在流化床上方供应，三次空气供应到二次空气喷嘴上方。 一次空气的一部分与燃料供给相关联地供应，使得燃料基本上被迫在流化床的表面上被强制化，从而全部进行热解，并且在热解中形成的至少一部分热解气体被一次空气燃烧 与热解气体中的燃料挥发物相关的空气系数在化学计量区域内。

公开(公告)号：US07381387B2

公开(公告)日：2008-06-03

申请号：US10640262

申请日：2003-08-14

Applicant: Vitali Victor Lissianski ,  Vladimir M. Zamansky ,  Peter Martin Maly ,  William Randall Seeker

Inventor： Vitali Victor Lissianski ,  Vladimir M. Zamansky ,  Peter Martin Maly ,  William Randall Seeker

IPC: C01G9/00

CPC classification number: F23C1/00 ,  B01D53/64 ,  B01D2257/602 ,  F23C6/047 ,  F23C2201/101 ,  F23C2201/301

Abstract: A method to reduce mercury in gas emissions from the combustion of low rank coal in a combustion system including: combusting coal having a low chlorine content in the combustion system, wherein elemental mercury (Hg0) is released in the flue gas produced by the combustion of the low rank coal; releasing chlorine into the flue gas by combusting a coal having a high chlorine in the combustion system; reacting the elemental mercury and released chlorine in the flue gas to oxidize the mercury; adsorbing at least a portion of the oxidized mercury generated by the combustion of the coal with an adsorbent in the flue gas, and collecting the adsorbent with the oxidized mercury in a combustion waste treatment system.

Abstract translation: 一种在燃烧系统中减少来自低等级煤的燃烧的气体排放中的汞的方法，包括：在燃烧系统中燃烧具有低氯含量的煤，其中元素汞（Hg 0）被释放 由低级煤燃烧产生的烟气; 通过在燃烧系统中燃烧具有高氯气的煤，将氯气释放到烟道气中; 使烟道气中的元素汞和释放的氯反应以氧化汞; 在烟道气中吸附由燃烧煤产生的至少一部分氧化汞和吸附剂，并在燃烧废物处理系统中用氧化汞收集吸附剂。