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    CIRCULATING FLUID BED STEAM GENERATOR NOx CONTROL
    101.
    发明申请
    CIRCULATING FLUID BED STEAM GENERATOR NOx CONTROL 审中-公开
    循环流化床蒸汽发生器NOx控制

    公开(公告)号：WO1996035080A1

    公开(公告)日：1996-11-07

    申请号：PCT/US1996005138

    申请日：1996-04-15

    Applicant: COMBUSTION ENGINEERING, INC.

    Inventor： COMBUSTION ENGINEERING, INC. ,  TANCA, Michael, C.

    IPC: F23C11/02

    CPC classification number: F23C10/10 ,  F23C6/045 ,  F23C2201/101

    Abstract: A method for enhancing the minimization of NOx control in a circulating fluid bed steam generator (12) into which there is injected fuel, fluidizing air, a lower level of combustion air and an upper level of combustion air. The fuel is injected at a first location (30), the fluidizing air is injected at a second location (24), the lower level of combustion air is injected at a third location (50b) and the upper level of combustion air is injected at a fourth location (50a). In order to enhance the minimization of NOx control within a circulating fluid bed steam generator (12) the lower level combustion air (50b) as well as the upper level combustion air (50a) are each biased in the horizontal plane as well as the vertical plane so as to thereby control the lower level combustion air flow (50b) and the upper level combustion air flow (50a) such that local stoichiometries within the circulating fluid bed steam generator (12) are maintained within a range of 70 % stoichiometry to 90 % stoichiometry.

    Abstract translation: 一种用于增强循环流化床蒸汽发生器（12）中最小化NOx控制的方法，其中注入燃料，流化空气，较低水平的燃烧空气和较高级别的燃烧空气。 在第一位置（30）处喷射燃料，在第二位置（24）喷射流化空气，在第三位置（50b）处注入较低级别的燃烧空气，并且将燃烧空气的上层燃烧在 第四位置（50a）。 为了增强循环流化床蒸汽发生器（12）内的NOx控制的最小化，下层燃烧空气（50b）以及上层燃烧空气（50a）各自被偏置在水平面以及垂直方向 从而控制较低级别的燃烧空气流（50b）和上级燃烧空气流（50a），使得循环流化床蒸汽发生器（12）内的局部化学计量保持在70％化学计量比至90的范围内 ％化学计量。

    접촉 연소 시스템 작동 방법
    103.
    发明授权
    접촉 연소 시스템 작동 방법 有权
    空值

    公开(公告)号：KR100417940B1

    公开(公告)日：2004-02-11

    申请号：KR1020017007856

    申请日：1999-12-20

    Applicant: 알스톰 파워 인코포레이티드

    Inventor： 토비아츠레베카엘. ,  하트더글라스제이. ,  루위스로버트디. ,  서튼제임스피.3세 ,  그리피스브루스에프.

    IPC: F23C5/32

    CPC classification number: F23C5/32 ,  F23C7/02 ,  F23C9/00 ,  F23C2201/101

    Abstract: 본 발명은 복수의 윈드박스(20)를 갖는 동시에, 이들 각각의 윈드박스가 복수의 구획(32, 48)을 가지며, 이들 구획을 통해서 연료와 공기가 고체연료 연소로 내로 도입되는 형식의, 고체연료 연소로(10) 작동 방법에 관한 것이다. 본 방법은 일차 공기와 연료를 노의 중앙에 위치하는 제 1 가상원(92)에 대해 접선 방향으로 노 내로 동일 구획(32, 48)을 통해 공급하여 회전 화구를 생성하는 단계를 포함한다. 또한, 본 방법은 상기 노(10) 내로 오버파이어(overfire) 공기 및 오프셋 공기를 공급하는 단계를 포함하고, 상기 오프셋 공기는 상기 노(10)에 공급되는 공기의 일부분으로서, 상기 제 1 가상원(92)과 동심이며 이 제 1 가상원보다 직경이 큰 제 2 가상원(96)을 지지하도록 공급되는 공기이다. 양호하게는, 상기 노 내로 공급되는 전체 공기는 하기의 관계식에 따라 분급된다: 전체 공기(100%) = [최대 40%까지의 오프셋 공기] + [최대 50%까지의 오버파이어 공기] + [적어도 20% 의 일차 공기 및 연료용 공기의 혼합된 소배분]

    Abstract translation: 一种操作具有多个风箱的固体燃料燃烧炉的方法，每个风箱具有多个室，燃料和空气通过该多个隔室引入炉中，并且提供根据该方法操作的燃料和空气布置。 固体燃料进料到炉中，一次空气和燃料通过与通常位于炉中心的第一假想圆相切的方向通过相同的隔室进入炉中，以便与进料到炉中的燃料相互作用 为了创造一个旋转的火球。 过热空气和补偿空气也被供应到炉中，偏移空气是供应到炉的空气的一部分，以便支撑与第一假想圆同心并且具有比第一假想圆更大的直径的第二假想圆。 因此，供应到炉中的总空气由一次空气，附加的燃烧支持空气，过火空气以及根据所供给的空气的组分之间的规定关系供应的偏移空气构成。

    산화질소 및 산화황 방출 감소법
    104.
    发明授权
    산화질소 및 산화황 방출 감소법 失效
    一氧化氮和硫氧化物减排方法

    公开(公告)号：KR1019890001113B1

    公开(公告)日：1989-04-24

    申请号：KR1019830003618

    申请日：1983-08-02

    Applicant: 컴버스천 엔지니어링 인코포레이티드

    Inventor： 랠프데이비드윈십

    IPC: F23L9/02

    CPC classification number: F23C6/047 ,  F23C5/32 ,  F23C2201/101 ,  F23C2201/301

    Abstract: A method of operating a furnace for minimizing the formation of NOx and SOx in combustion gases comprises (a) conveying a pulverized coal in an air stream towards the furnace, and (b) separating the stream into a fuel rich portion and a fuel lean portion. The fuel rich portion is introduced into the furnace in a first zone. The fuel lean portion is introduced into a second zone in a quantity such that there is excess air over that required for combustion of all of the fuel within the furnace.

    Abstract translation: 操作用于使燃烧气体中的NOx和SO x形成最小化的炉子的方法包括（a）将空气流中的粉煤输送到炉中，和（b）将该物流分离成富燃料部分和稀燃部分 。 富燃料部分在第一区域中被引入炉中。 燃料贫乏部分被引入第二区域，其量使得存在比在炉内所有燃料燃烧所需的空气多的空气。

    Inverted-shaped low-nox boiler
    107.
    发明专利
    Inverted-shaped low-nox boiler 有权

    公开(公告)号：JP5340716B2

    公开(公告)日：2013-11-13

    申请号：JP2008316721

    申请日：2008-12-12

    Applicant: 川崎重工業株式会社

    Inventor： 信夫 末光 ,  貞行 武藤 ,  信一 戸田 ,  実 五十嵐

    IPC: F22B31/00 ,  F22B37/48 ,  F23C6/04

    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.

    METHOD AND APPARATUS FOR REDUCING FLUE GAS NOx BY INJECTION OF N-AGENT DROPLET AND GAS IN OVERFIRE AIR
    109.
    发明专利
    METHOD AND APPARATUS FOR REDUCING FLUE GAS NOx BY INJECTION OF N-AGENT DROPLET AND GAS IN OVERFIRE AIR 审中-公开
    通过注入N型剂和气体在OVERFIRE空气中减少燃气NOx的方法和装置

    公开(公告)号：JP2005164227A

    公开(公告)日：2005-06-23

    申请号：JP2004328914

    申请日：2004-11-12

    Applicant: General Electric Co ,  ゼネラル・エレクトリック・カンパニイGeneral Electric Company

    Inventor： PAYNE ROY ,  ZHOU WEI ,  LISSIANSKI VITALI VICTOR ,  ZAMANSKY VLADIMIR M ,  SWANSON LARRY WILLIAM

    IPC: F23L9/02 ,  B01D53/56 ,  B01D53/74 ,  F23C6/04 ,  F23C99/00 ,  F23D1/00 ,  F23J7/00 ,  F23L9/04 ,  F23C11/00

    CPC classification number: F23D1/00 ,  B01D53/56 ,  B01D53/565 ,  F23C6/047 ,  F23C2201/101 ,  F23J7/00 ,  F23J2215/101 ,  F23L9/04

    Abstract: PROBLEM TO BE SOLVED: To provide a method of decreasing the concentration of nitrogen oxides in a combustion flue gas 24. SOLUTION: In the method, a nitrogen reducing agent 34, either in gaseous form, as small particles, or as small droplets of an aqueous solution, is introduced together with overfire air 28 in such a way that it mixes with the products of primary combustion along with the overfire air. The nitrogen agent reduces NOx as it passes through a temperature regime 54 that is optimum for the NOx reduction as the overfire air and the flue gas mix. The transition from low to high temperature effectively eliminates ammonia slip. Additionally, the nitrogen agent may be mixed with the overfire air stream in such a manner that it is optimally shielded from early mixing with the products of primary combustion, where a portion of the overfire air reacts initially with any residual carbon monoxide (CO) that would otherwise interfere with the NOx reduction chemistry. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供降低燃烧烟道气24中的氮氧化物浓度的方法。解决方案：在该方法中，作为小颗粒的气态形式的还原剂34， 或作为水溶液的小液滴与过热空气28一起引入，使得其与过燃空气与初级燃烧产物混合。 氮气剂通过当超燃空气和烟道气混合时通过对于NOx还原最佳的温度状态54来降低NOx。 从低温到高温的转变有效地消除了氨的滑移。 另外，氮气剂可以与过火空气流混合，使得其被最佳地屏蔽以防止与初级燃烧产物的早期混合，其中一部分过热空气最初与任何残留的一氧化碳（CO）反应， 否则会干扰NOx还原化学。 版权所有（C）2005，JPO＆NCIPI

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