Air nozzle for a furnace
    141.
    发明授权
    Air nozzle for a furnace 失效
    用于炉的空气喷嘴

    公开(公告)号:US6148743A

    公开(公告)日:2000-11-21

    申请号:US641021

    申请日:1996-04-29

    Applicant: Joel Vatsky

    Inventor: Joel Vatsky

    CPC classification number: F23M9/02 F23L9/00 F23C2201/101

    Abstract: An air nozzle for introducing secondary air into a furnace and including a housing provided with an inlet at one end thereof for receiving air and an outlet at the other end thereof for discharging the air. A damper is disposed in the housing in the path of the air for splitting the flow of the air into two flow streams which extend to different areas of the furnace and is adapted for pivotal movement in the housing to vary the amount of air flow in each of the streams and the discharge angle of one of the streams.

    Abstract translation: 一种空气喷嘴,用于将二次空气引入炉中,并且包括在其一端设有用于接收空气的入口和在其另一端具有用于排出空气的出口的壳体。 在空气通道中的空气通道中设置有阻尼器,用于将空气流分解成两个流向熔池的不同区域的流动,并适于在壳体中枢转运动以改变每个气流中的空气流量 的流和其中一个流的排放角度。

    Method and arrangement for supplying air to recovery boiler
    142.
    发明授权
    Method and arrangement for supplying air to recovery boiler 失效
    向回收锅炉供应空气的方法和装置

    公开(公告)号:US6006683A

    公开(公告)日:1999-12-28

    申请号:US017890

    申请日:1998-02-03

    CPC classification number: F23L9/02 F23G7/04 F23C2201/101

    Abstract: A method and an arrangement for supplying air to a recovery boiler. In the method, the air is supplied to the recovery boiler at at least one air supply level so that four vortices are formed therein, the vortices spinning, in pairs, in opposite directions to one another so that any two adjacent vortices always spin in opposite directions to one another. The arrangement comprises nozzles that are arranged to blow air so that four vortices are formed in the recovery boiler, any two adjacent vortices always spinning in opposite directions to one another.

    Abstract translation: 一种用于向回收锅炉供应空气的方法和装置。 在该方法中,空气以至少一个空气供应水平供应到回收锅炉,从而在其中形成四个涡流,涡流成对地以相反方向彼此旋转,使得任何两个相邻涡流总是以相反的方向旋转 相互指引。 该装置包括布置成吹送空气的喷嘴,使得在回收锅炉中形成四个涡流,任何两个相邻的涡流总是沿彼此相反的方向旋转。

    Method and apparatus for improving fluid flow and gas mixing in boilers
    143.
    发明授权
    Method and apparatus for improving fluid flow and gas mixing in boilers 失效
    改善锅炉流体流动和气体混合的方法和装置

    公开(公告)号:US5121700A

    公开(公告)日:1992-06-16

    申请号:US587645

    申请日:1990-09-24

    Abstract: This invention is directed to a method and apparatus for improving fluid flow and gas mixing in boilers. More particularly, this invention pertains to a method and apparatus for improved fluid flow and gas mixing in kraft recovery boilers for increased energy efficiency, reduced TRS emissions and increased capacity. The method of introducing air into a boiler furnace comprises: (a) introducing air through at least one opening located on at least a first wall of the interior of the furnace; and (b) introducing air through at least one second opening located on a second wall of the interior of the furnace opposed to the first wall at the same, or different, elevations. The method of introducing air into a boiler furnace may also comprise: (a) introducing air into the furnace in the form of a first set of small and large jets originating from one wall of the interior of the furnace; and (b) introducing air into the furnace in the form of a second set of small and large jets originating from the wall of the interior of the furnace opposite the first wall. The locations of the sources of the first set of small and large jets may be placed so that they oppose the sources of the second set of small and large jets, with small jets opposing large jets, and vice versa. The sizes of the jets may be regulated by varying opening size, number of openings in groups of openings, air pressure upstream of the openings, or combinations thereof.

    Abstract translation: 本发明涉及一种用于改善锅炉中的流体流动和气体混合的方法和装置。 更具体地说,本发明涉及用于改进牛皮纸回收锅炉中的流体流动和气体混合的方法和装置,用于提高能量效率,减少TRS排放和增加容量。 将空气引入锅炉炉的方法包括:(a)通过位于炉内部的至少第一壁上的至少一个开口引入空气; 和(b)以相同或不同的高度通过位于炉壁内部的第二壁上的至少一个第二开口引入空气,该第二壁与第一壁相对。 将空气引入锅炉炉中的方法还可以包括:(a)以来自炉内部的一个壁的第一组小型和大型喷射器的形式将空气引入炉中; 和(b)以来自与第一壁相对的炉内部的壁的第二组小型和大型喷射器的形式将空气引入炉中。 第一组小型和大型喷气机的源的位置可以放置成使得它们与第二组小型和大型喷气机的源相反,小型喷气机与大型喷气机相对,反之亦然。 喷射器的尺寸可以通过改变开口尺寸,开口组中的开口数量,开口上游的空气压力或其组合来调节。

    Clustered concentric tangential firing system
    144.
    发明授权
    Clustered concentric tangential firing system 失效
    集群同心切向点火系统

    公开(公告)号:US5020454A

    公开(公告)日:1991-06-04

    申请号:US606682

    申请日:1990-10-31

    CPC classification number: F23C5/32 F23C1/00 F23C6/047 F23C2201/101

    Abstract: A clustered concentric tangential firing system (12) particularly suited for use in fossil fuel-fired furnaces (10) and a method of operating such furnaces (10) equipped with a clustered concentric tangential firing system (12). The clustered concentric tangential firing system (12) includes a windbox (20), a first cluster of fuel nozzles (38,40) mounted in the windbox (20) and operative for injecting clustered fuel into the furnace (10) so as to create a first fuel-rich zone therewithin, a second cluster of fuel nozzles (68,70) mounted in the windbox (20) and operative for injecting clustered fuel into the furnace (10) so as to create a second fuel-rich zone therewithin, an offset air nozzle (56) mounted in the windbox (20) and operative for injecting offset air into the furnace (10) such that the offset air is directed away from the clustered fuel injected into the furnace (10) and towards the walls of the furnace (10), a close coupled overfire air nozzle (78) mounted in the windbox ( 20) and operative for injecting close coupled overfire air into the furnace (10), and a separated overfire air nozzle (90) mounted in the window (20) and operative for injecting separated overfire air into the furnace (10).

    Abstract translation: 一种特别适用于化石燃料燃烧炉(10)的聚簇同心切线燃烧系统(12)以及一种操作配备有集束同心切向燃烧系统(12)的这种炉子(10)的方法。 集束同心切线点火系统(12)包括风箱(20),安装在风箱(20)中的第一燃料喷嘴群(38,40)并且用于将集料燃料喷射到炉(10)中,以便产生 其中具有第一富燃料区,安装在所述风箱(20)中的第二燃料喷嘴簇(68,70),用于将集料燃料喷入所述炉(10)中,以便在其中形成第二富燃区, 安装在所述风箱(20)中并且用于将偏置空气喷射到所述炉(10)中的偏置空气喷嘴(56),使得所述偏移空气被引导离开喷射到所述炉(10)中的所述聚集燃料并且朝向 炉子(10),安装在风箱(20)中并且用于将紧密耦合的过火空气注入炉子(10)中的紧密联接的超燃空气喷嘴(78)和安装在窗户中的分开的过火空气喷嘴(90) (20),并且用于将分离的过热空气喷射到炉(10)中。

    Pulverized coal combustion method
    145.
    发明授权
    Pulverized coal combustion method 失效
    粉煤燃烧法

    公开(公告)号:US5003891A

    公开(公告)日:1991-04-02

    申请号:US485087

    申请日:1990-02-26

    Abstract: The known pulverized coal combustion method including the steps of separating pulverized coal mixture gas ejected from a vertical type coal grinder into thick mixture gas and thin mixture gas by a distributor, and injecting these thick and thin mixture gases, respectively, through separate burner injecting ports into a common furnace to make them burn, is improved so as to reduce both an unburnt content in the ash and a nitrogen oxide concentration in exhaust gas while maintaining an excellent ignition characteristic. The improvements reside in that an air-to-fuel ratio of the thick mixture gas is regulated to within the range of 1-2, while an air-to-fuel ratio of the thin mixture gas is regulated to within the range of 3-6, and the range of a degree of pulverization of the pulverized coal is regulated to 100 mesh residue 1.5% or less. The degree of pulverization of the pulverized coal fed to the distributor is regulated either by adjusting the rotational speed of a rotary type classifier in the grinder or by adjusting the angles formed between classifying vanes, rotating about the axis of the rotary type classifier, and the direction of rotation.

    燃焼装置
    147.
    发明专利

    公开(公告)号:JPWO2012114370A1

    公开(公告)日:2014-07-07

    申请号:JP2013500663

    申请日:2011-02-22

    Abstract: 燃料とその搬送気体との混合物を火炉18内に噴出させる筒状の燃料ノズル3と該ノズル3の外周に設けられた燃焼用空気を火炉内に噴出させる筒状の1以上の空気ノズル8,11と該ノズル8,11に共通して燃焼用空気を供給するウィンドボックス12を有するバーナ19を複数個、火炉18の炉壁10に並べて設置したボイラであって、ウィンドボックス12はバーナ19の軸方向に対して垂直方向に向いた一つの方向から燃焼用空気が流入する開口部12a,12bを有し、該開口部から並進して流入する平行な複数の空気流路を形成するように仕切板14で区画し、複数の流路のうち一部の流路は燃焼用空気ノズル8の上側、残りの流路は該ノズル8の下側に接続され、複数の燃焼用空気流路には、それぞれ独立に空気の運動量偏差用ダンパ15,さらに空気流量調整用ダンパ17を設け、バーナ19の火炎の向きを負荷などの燃焼条件に応じて火炉18内の上下方向で変更可能にする。

    Furnace combustion system and fuel combustion method
    149.
    发明专利
    Furnace combustion system and fuel combustion method 审中-公开
    燃烧燃烧系统和燃料燃烧方法

    公开(公告)号:JP2006337016A

    公开(公告)日:2006-12-14

    申请号:JP2006153634

    申请日:2006-06-01

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for reducing NOx and CO excretion in a combustion apparatus employing a plurality of burners. SOLUTION: This furnace combustion system comprises the plurality of burners and an oxidant port that is arranged between at least two burners and is surrounded by these burners. Each burner is separated from other burners, combusts the flow of one fuel or other fuel with the flow of one oxidant or other oxidant to generate flame. The oxidant port sends the jet of at least one of the first oxidant or other oxidant axially to the gap between at least two flames. At least one jet is sent from the oxidant port at a controlled flow rate. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于减少使用多个燃烧器的燃烧装置中的NOx和CO排放的系统和方法。 解决方案:该炉燃烧系统包括多个燃烧器和设置在至少两个燃烧器之间并被这些燃烧器包围的氧化剂口。 每个燃烧器与其他燃烧器分离,燃烧一种燃料或其他燃料的流动与一种氧化剂或其它氧化剂的流动产生火焰。 氧化剂端口将至少一种第一氧化剂或其它氧化剂的射流轴向发送到至少两个火焰之间的间隙。 以受控流速从氧化剂端口发送至少一个射流。 版权所有(C)2007,JPO&INPIT

    System for diminishing mercury in combustion flue gas using coal mixture and method thereof
    150.
    发明专利
    System for diminishing mercury in combustion flue gas using coal mixture and method thereof 审中-公开
    使用煤混合物燃烧燃烧气体中的汞的系统及其方法

    公开(公告)号:JP2005059005A

    公开(公告)日:2005-03-10

    申请号:JP2004235803

    申请日:2004-08-13

    Abstract: PROBLEM TO BE SOLVED: To provide a method for diminishing Hg in an exhausted gas from a combustion of lower grade coals (32, 52) in a combustion system (16). SOLUTION: The method is composed of a step for burning the coals (32, 52) with a low content of Cl in the combustion system, a step for exhausting Cl into the flue gas by burning the coal (34, 54) with the high content of Cl in the combustion system, a step for oxidizing Hg by reacting elemental Hg and Cl exhausted in the flue gas, a step for adsorbing at least a part of mercury oxide formed by burning the coal together with an adsorbent in the flue gas, and a step for recovering both the adsorbent and mercury oxide in combustion waste treatment systems (19, 26). Thus, elemental Hg (Hg 0 ) is exhausted into the flue gas formed by burning the lower grade coal. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 解决的问题:提供一种减少来自燃烧系统(16)中的低级煤(32,52)的燃烧的排出气体中的Hg的方法。 解决方案:该方法包括用于在燃烧系统中燃烧具有低含量Cl的煤(32,52)的步骤,通过燃烧煤(34,54)将Cl排出到烟道气中的步骤, 在燃烧系统中具有高含量的Cl,通过使在烟道气中排出的元素Hg和Cl反应来氧化Hg的步骤,用于吸附至少一部分通过在煤中燃烧煤与吸附剂形成的氧化汞的步骤 烟道气和用于回收燃烧废物处理系统(19,26)中的吸附剂和氧化汞的步骤。 因此,元素Hg(Hg 0 )被排放到通过燃烧较低级煤形成的烟道气中。 版权所有(C)2005,JPO&NCIPI

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