METHOD AND APPARATUS FOR A DUAL MODE BURNER YIELDING LOW NOX EMISSION
    1.
    发明申请
    METHOD AND APPARATUS FOR A DUAL MODE BURNER YIELDING LOW NOX EMISSION 审中-公开
    双燃烧器低NOx排放的方法和装置

    公开(公告)号:US20140080072A1

    公开(公告)日:2014-03-20

    申请号:US14025440

    申请日:2013-09-12

    申请人: Eclipse, Inc.

    IPC分类号: F23N5/02

    摘要: A method of operating a burner includes providing supplying a combustible mixture containing a ratio of fuel and air that is incapable of maintaining a stable flame to a combustion chamber. The combustible mixture is ignited by an igniter, and presence of a flame is sensed. The igniter is maintained active to sustain combustion of the combustible mixture within the combustion chamber so that a space exterior to the combustion chamber is heated to a temperature at or above an auto-ignition temperature of the combustible mixture. The temperature of the space exterior is monitored and the combustible mixture is provided at a second flow rate, which is higher than the first flow rate, to extinguish the flame in the combustion chamber such that combustion occurs in the space exterior to the combustion chamber. When combustion occurs in the space exterior to the combustion chamber, the igniter is deactivated.

    摘要翻译: 一种操作燃烧器的方法包括提供一种含有燃料和空气的比例的可燃混合物,该燃料和空气不能将稳定的火焰保持在燃烧室。 可燃混合物被点火器点燃,并且感觉到火焰的存在。 点火器保持活动以维持燃烧室内的可燃混合物的燃烧,使得燃烧室外部的空间被加热到等于或高于可燃混合物的自燃温度的温度。 监测空间外部的温度,并且以比第一流量高的第二流量提供可燃混合物,以熄灭燃烧室中的火焰,使得燃烧在燃烧室外部的空间中发生。 当在燃烧室外部的空间发生燃烧时,点火器被停用。

    Method of starting up a direct heating system for the flameless combustion of fuel and direct heating of a process fluid
    2.
    发明授权
    Method of starting up a direct heating system for the flameless combustion of fuel and direct heating of a process fluid 有权
    启动燃料无焰燃烧的直接加热系统和工艺流体的直接加热的方法

    公开(公告)号:US08016589B2

    公开(公告)日:2011-09-13

    申请号:US11371890

    申请日:2006-03-09

    摘要: Included is a method of starting up a direct heating device having a fuel introduction zone, a combustion zone and a process zone that is in heat exchange relationship with said combustion zone. Prior to the introduction of a fuel fluid into said combustion zone, an oxidant fluid, having a high temperature, is passed through the combustion zone for a warm-up time period sufficient to raise the temperature of the direct heating device to a desired temperature. Steam or a process fluid is passed through the process zone followed by the introduction of a fuel fluid into the fuel introduction zone. After the device has been heated up a process fluid is introduced through the process zone. Thereafter, the introduction of steam through the process zone may be stopped.

    摘要翻译: 包括启动具有燃料引入区,燃烧区和与所述燃烧区处于热交换关系的处理区的直接加热装置的方法。 在将燃料流体引入所述燃烧区之前,具有高温度的氧化剂流体通过燃烧区域,其预热时间足以将直接加热装置的温度升高到所需温度。 蒸汽或工艺流体通过处理区,随后将燃料流体引入燃料引入区。 在装置被加热之后,通过处理区域引入工艺流体。 此后,可以停止通过处理区引入蒸汽。

    Radiant device with gas burner and recirculation, adapted in view of reduced production of nitrogen oxides
    3.
    发明申请
    Radiant device with gas burner and recirculation, adapted in view of reduced production of nitrogen oxides 有权
    具有气体燃烧器和再循环的辐射装置,适于减少氮氧化物的产生

    公开(公告)号:US20030003413A1

    公开(公告)日:2003-01-02

    申请号:US10167771

    申请日:2002-06-11

    IPC分类号: F23D003/40

    摘要: The invention relates to a radiant device with a burner of the nullglove fingernull type, comprising an exchanger (3) for heating air (T1) by the burned gases (T2), a furnace tube (6) drilled with air-intake orifices (60) and terminated by a nozzle (61) disposed facing a recirculation tube (4), and a central gas-injection tube (7). According to the invention, the central injection tube (7) is fed with gaseous fluids in proportions that can be regulated by means of one or to valves (710, 720), via two conduits (71, 72), the first (71) of which transports at least gas and the second (72) of which transports at least air, and the central injection tube (7) ends at a burner (8), which is disposed in the furnace tube (6) and which discharges at the level of the nozzle (61), this arrangement making it possible to adapt existing devices very easily for the purpose of reduced production of nitrogen oxides.

    摘要翻译: 本发明涉及一种具有“手指”型燃烧器的辐射装置,包括用于通过燃烧气体(T2)加热空气(T1)的交换器(3),钻有空气吸入孔的炉管(6) (60)并且由面向再循环管(4)设置的喷嘴(61)和中心气体注入管(7)终止。 根据本发明,中央注射管(7)以比例可以供给气体流体,其比例可以通过一个或多个阀(710,720)经由两个管道(71,72),第一(71) 其至少输送气体,其中第二(72)输送至少空气,中央喷射管(7)在燃烧器(8)处终止,燃烧器(8)设置在炉管(6)中并在 喷嘴(61)的高度,这种布置使得可以非常容易地适应现有装置,以减少氮氧化物的生产。

    FLAMELESS COMBUSTOR PROCESS HEATER
    4.
    发明申请
    FLAMELESS COMBUSTOR PROCESS HEATER 有权
    无烟咖啡机加热器

    公开(公告)号:US20020015670A1

    公开(公告)日:2002-02-07

    申请号:US09168770

    申请日:1998-10-08

    IPC分类号: F28D007/00 F28D021/00

    摘要: A process heater is provided utilizing flameless combustion, the process heater having: an oxidation reaction chamber, the oxidation reaction chamber having an inlet for oxidant, an outlet for combustion products, and a flow path between the inlet and the outlet; a fuel conduit capable of transporting a fuel mixture to a plurality of fuel nozzles within the oxidation reaction chamber, each nozzle providing communication from within the fuel conduit to the oxidation chamber, with each nozzle along the flowpath between the inlet and the outlet; a preheater in communication with the oxidation chamber inlet, the preheater capable of increasing the temperature of the oxidant to a temperature resulting in the combined oxidant and fuel from the fuel nozzle closest to the oxidation chamber inlet being greater than the autoignition temperature of the combined oxidant and fuel from the fuel nozzle closest to the oxidation chamber inlet; and a process chamber in a heat exchange relationship to the oxidation reaction chamber wherein the heat transferred from the oxidation section does not causes the temperature of the mixture within the oxidation reaction chamber in the vicinity of each fuel nozzle to decrease below the auto ignition temperature of the combined mixture in the oxidation chamber in the vicinity of that fuel nozzle.

    摘要翻译: 采用无焰燃烧提供了一种工艺加热器,该工艺加热器具有:氧化反应室,氧化反应室具有用于氧化剂的入口,用于燃烧产物的出口以及入口和出口之间的流动路径; 燃料管道,其能够将燃料混合物输送到所述氧化反应室内的多个燃料喷嘴,每个喷嘴提供从燃料管道到氧化室的连通,每个喷嘴沿着入口和出口之间的流动路径; 与氧化室入口连通的预热器,所述预热器能够将氧化剂的温度升高到导致来自最接近氧化室入口的燃料喷嘴的组合氧化剂和燃料的温度大于组合氧化剂的自燃温度 和来自最靠近氧化室入口的燃料喷嘴的燃料; 以及与氧化反应室的热交换关系的处理室,其中从氧化段传递的热量不会导致在每个燃料喷嘴附近的氧化反应室内的混合物的温度降低到低于自燃温度 在该燃料喷嘴附近的氧化室中的混合物。

    Heating matter
    5.
    发明授权
    Heating matter 失效
    加热物质

    公开(公告)号:US5245934A

    公开(公告)日:1993-09-21

    申请号:US821866

    申请日:1992-01-16

    IPC分类号: F23C10/18 F27B15/14

    摘要: A method of heating matter comprises supplying a gaseous mixture, which is reactable to produce heat, at a temperature above that at which spontaneous ignition occurs to a heating zone such that the gaseous mixture reacts to provide a heated fluid flow in said heating zone, and supplying matter to be heated to said heating zone.

    摘要翻译: PCT No.PCT / GB89 / 00603 Sec。 371日期1990年11月29日第 102(e)日期1990年11月29日PCT提交1989年6月1日PCT公布。 WO89 / 12202 PCT公开号 日本1990年12月14日。一种加热物质的方法包括在高于加热区自发点火的温度下供应可反应的气体混合物以产生热量,使得气态混合物反应以提供加热流体 在所述加热区中流动,并将待加热的物质供应到所述加热区。

    Power plant with combustion in a fluidized bed
    6.
    发明授权
    Power plant with combustion in a fluidized bed 失效
    在流化床中燃烧的发电厂

    公开(公告)号:US4722182A

    公开(公告)日:1988-02-02

    申请号:US915468

    申请日:1986-10-06

    申请人: Roine Brannstrom

    发明人: Roine Brannstrom

    摘要: A power plant designed to burn fuel in a bed of fluidizable particulate material contained in a combustion chamber includes a tubular discharge device for bed material or dust separated from combustion gases leaving the combustion chamber. The tubular discharge device is designed as a cooler which is cooled by combustion air flowing into the combustion chamber and is utilized for pre-heating the plant upon start-up from a cold state. At least a part of the tubular discharge device, is electrically insulated from parts located upstream and downstream and from supporting structural members and forms an electrical heating unit. Upon start-up, this unit is connected to a current source for heating the air fed to the combustion chamber and downstream parts of the plant.

    摘要翻译: 设计用于在燃烧室中容纳的可流动的颗粒材料床中燃烧燃料的动力设备包括用于与离开燃烧室的燃烧气体分离的床料或灰尘的管状排出装置。 管状排出装置被设计为冷却器,其由流入燃烧室的燃烧空气冷却,并用于在从冷态起动时预热该设备。 管状排出装置的至少一部分与位于上游和下游的部件与支撑结构构件电气绝缘,并形成电加热单元。 启动时,该单元连接到电流源,用于加热进入燃烧室和设备下游部分的空气。

    Method of igniting a combustion chamber with a fluidized bed and a power
plant for utilizing the method
    7.
    发明授权
    Method of igniting a combustion chamber with a fluidized bed and a power plant for utilizing the method 失效
    用流化床点燃燃烧室的方法和利用该方法的发电厂

    公开(公告)号:US4584949A

    公开(公告)日:1986-04-29

    申请号:US744173

    申请日:1985-06-13

    申请人: Roine Brannstrom

    发明人: Roine Brannstrom

    IPC分类号: F23C10/16 F23C10/18 F23G5/00

    摘要: The invention relates to a method of igniting, upon start-up, a combustion chamber (8) in a power plant with combustion of fuel in a fluidized bed (14). The air flow through the nozzles (13) of the combustion chamber bottom (12) for fluidization of the bed (14) and for combustion of the fuel can be reduced upon start-up; bed material, which is heated to the ignition temperature of a start-up fuel, is transferred from a storage container (40) to the combustion chamber (8), and fuel is supplied to the bed (14). In those cases where the air flow has been reduced during the transfer of the bed material, it is increased again when the fuel is supplied. The invention also relates to a power plant having means for temporarily bypassing the nozzles (13) of the combustion chamber bottom (12) while transferring hot bed material from a storage container (40) to the combustion chamber (8), and a fuel system (30-38) for the supply of fuel to the combustion chamber (8). In a plant with a combustion chamber (8) enclosed in a pressure vessel (10), a connection with a valve (55) for by-passing the air flow may be provided between the space (11) in the pressure vessel and the freeboard (18) of the combustion chamber (8) for reducing the air flow through the bed. Further, control means (38, 80) are provided for carrying out the necessary operations of valves, and the like, during the start-up operation.

    摘要翻译: 本发明涉及一种在启动时点燃在发电厂中燃烧在流化床(14)中的燃料的燃烧室(8)的方法。 通过燃烧室底部(12)的喷嘴(13)的空气流可以减少床(14)的流化和燃料的燃烧, 被加热到启动燃料的点火温度的床料从储存容器(40)转移到燃烧室(8),并将燃料供应到床(14)。 在床料转移期间空气流已经减少的情况下,当供应燃料时再次增加。 本发明还涉及具有用于临时绕过燃烧室底部(12)的喷嘴(13)同时将热床材料从储存容器(40)转移到燃烧室(8)的装置的发电设备,以及燃料系统 (30-38),用于向燃烧室(8)供应燃料。 在具有封闭在压力容器(10)中的燃烧室(8)的设备中,可以在压力容器内的空间(11)和干舷(11)之间提供与用于旁路气流的阀(55)的连接 (18),用于减少通过床的空气流。 此外,设置控制装置(38,80),用于在启动操作期间执行阀门等的必要操作。

    Fluidized bed start up and operation
    8.
    发明授权
    Fluidized bed start up and operation 失效
    流化床起动和运行

    公开(公告)号:US4312702A

    公开(公告)日:1982-01-26

    申请号:US147058

    申请日:1980-05-06

    摘要: At start-up, a bed of pellets derived from pulp mill residual liquor is fluidized by feeding preheated air to the bed to initially raise the temperature of the bed to a temperature at which a particulate ligno-cellulosic auxiliary solid fuel may be completely consumed (800.degree.-850.degree. F.) and less than the yield temperature of the heat exchanger, feeding the auxiliary fuel to the fluidized bed, so as to burn the auxiliary fuel within the bed, feeding coolant to the heat exchanger to protect the heat exchanger from thermally induced damage, coordinating the rate of feeding of coolant with the rate of injection of the solid fuel to further increase the temperature of the bed to at least a temperature at which concentrated residual liquor from said mill will be burned while maintaining the temperature of the heat exchange equipment below the yield temperature for the material from which the heat exchanger is constructed and without build up of carbon in the bed, injecting concentrated residual liquor fuel from said pulp mill to the bed thereby to burn said residual liquor in the bed, continuing to inject at least one of said fuels, coordinating the rate of fuel injection to operate the bed at operating temperature while simultaneously maintaining a rate of addition of coolant to the heat exchanger to insure the temperature of the metal of the heat exchanger does not exceed the yield temperature.

    摘要翻译: 在启动时,通过将预热的空气送入床来初始将床的温度升高到可以完全消耗颗粒状木质纤维素辅助固体燃料的温度,从纸浆厂残留液中得到的颗粒床被流化 800°-850°F),并且小于热交换器的屈服温度,将辅助燃料供给到流化床,以便在床内燃烧辅助燃料,将冷却剂送入热交换器以保护热交换器 从热诱导的损伤,协调冷却剂的供给速率和固体燃料的注入速率,以进一步将床的温度升高至至少一个温度,在该温度下,来自所述研磨机的浓缩残留液体将被燃烧,同时保持温度 热交换设备低于构建热交换器的材料的屈服温度,并且不在床中积聚碳,注入浓缩的 从所述纸浆厂到床的侧面液体燃料从而燃烧床中的残余液体,继续注入至少一种所述燃料,协调燃料喷射速率以在操作温度下操作床,同时保持加入速率 的冷却剂到热交换器以确保热交换器的金属的温度不超过屈服温度。

    Rapid ignition of fluidized bed boiler
    9.
    发明授权
    Rapid ignition of fluidized bed boiler 失效
    流化床锅炉快速点火

    公开(公告)号:US3996863A

    公开(公告)日:1976-12-14

    申请号:US666535

    申请日:1976-03-15

    申请人: Liman D. Osborn

    发明人: Liman D. Osborn

    摘要: A fluidized bed boiler is started up by directing into the static bed of inert and carbonaceous granules a downwardly angled burner so that the hot gases cause spouting. Air is introduced into the bed at a rate insufficient to fluidize the entire bed. Three regions are now formed in the bed, a region of lowest gas resistance, a fluidized region and a static region with a mobile region at the interface of the fluidized and static regions. Particles are transferred by the spouting action to form a conical heap with the carbonaceous granules concentrated at the top. The hot burner gases ignite the carbonaceous matter on the top of the bed which becomes distributed in the bed by the spouting action and bed movement. Thereafter the rate of air introduction is increased to fluidize the entire bed, the spouter/burner is shut off, and the entire fluidized bed is ignited.

    摘要翻译: 通过将惰性和碳质颗粒的静态床引向向下倾斜的燃烧器来启动流化床锅炉,使得热气体引起喷射。 以不足以使整个床流化的速率将空气引入床中。 现在在床上形成了三个区域,气体阻力最低的区域,流化区域和在流化区域和静止区域的界面处具有可移动区域的静态区域。 颗粒通过喷射作用转移以形成锥形堆,碳质颗粒集中在顶部。 热燃烧器气体通过喷射动作和床移动而点燃床上部的含碳物质,其分布在床中。 此后,空气引入速率增加以使整个床流化,喷射器/燃烧器被切断,整个流化床被点燃。