AIR INJECTION SYSTEMS FOR COMBUSTION CHAMBERS
    161.
    发明申请
    AIR INJECTION SYSTEMS FOR COMBUSTION CHAMBERS 审中-公开
    燃烧室空气喷射系统

    公开(公告)号:US20150099233A1

    公开(公告)日:2015-04-09

    申请号:US14509518

    申请日:2014-10-08

    Abstract: A combustion system comprises a combustion chamber and a flue gas duct located downstream of the combustion chamber to receive combustion products from the combustion chamber, the combustion chamber has a base and an enclosing wall connecting the base to the flue gas duct. The combustion chamber is provided with a plurality of combustion devices, the combustion devices being configured to deliver fuel and gas and/or air into the combustion chamber so as to generate a fireball within a combustion zone in the combustion chamber, the combustion devices further being configured such that the generated fireball rotates about an axis extending between the base and the flue duct. A secondary gas and/or air nozzle is provided in the base of the combustion chamber, at a location upstream of the combustion zone, the nozzle being for delivering gas and/or air into the combustion zone in a direction towards the flue duct.

    Abstract translation: 燃烧系统包括位于燃烧室下游的燃烧室和烟气管道,用于接收来自燃烧室的燃烧产物,燃烧室具有基座和将基座连接到烟气管道的封闭壁。 燃烧室设置有多个燃烧装置,燃烧装置构造成将燃料和气体和/或空气输送到燃烧室中,以在燃烧室内的燃烧区域内产生火球,燃烧装置还包括 被配置为使得所产生的火球围绕在基部和烟道之间延伸的轴线旋转。 二次气体和/或空气喷嘴设置在燃烧室的基部中,在燃烧区的上游位置处,喷嘴用于沿朝向烟道的方向将气体和/或空气输送到燃烧区。

    SYSTEM AND METHOD FOR RETROFITTING A BURNER FRONT AND INJECTING A SECOND FUEL INTO A UTILITY FURNACE
    162.
    发明申请
    SYSTEM AND METHOD FOR RETROFITTING A BURNER FRONT AND INJECTING A SECOND FUEL INTO A UTILITY FURNACE 审中-公开
    改造燃烧器前部并将第二燃料注入实用炉的系统和方法

    公开(公告)号:US20150086930A1

    公开(公告)日:2015-03-26

    申请号:US14562276

    申请日:2014-12-05

    Abstract: This disclosure may relate generally to systems, devices, and methods for a injecting a compound through a sootblower, burner or other utility furnace hardware, such that the compound can be delivered to targeted areas on the inside of a utility furnace. In one embodiment, the compound is a chemical for improving environmental controls. In another embodiment, the compound is a fuel. In that embodiment, compound can facilitate retrofitting a burner to a dual fired utility furnace. In another embodiment, the compound is a chemical for removing slag from the furnace.

    Abstract translation: 本公开可以一般涉及用于通过吹灰器,燃烧器或其他实用炉五金注射化合物的系统,装置和方法,使得该化合物可以被输送到公用炉内部的目标区域。 在一个实施方案中,该化合物是用于改善环境控制的化学品。 在另一个实施方案中,化合物是燃料。 在该实施方案中,化合物可以有助于将燃烧器改装到双重燃烧的实用炉。 在另一个实施方案中,该化合物是用于从炉中除去渣的化学品。

    Combustion Apparatus
    164.
    发明申请
    Combustion Apparatus 审中-公开
    燃烧装置

    公开(公告)号:US20120174838A1

    公开(公告)日:2012-07-12

    申请号:US13386185

    申请日:2010-07-23

    Abstract: A burner for a combustion apparatus, a combustion apparatus comprising such burners, and a method of operation of the same are described. The burner comprises: a fuel input conduit for supplying fuel to the burner; a combustion gas input conduit for supplying combustion gas to a first stage combustion site; an overfire gas input conduit for supplying overfire gas to a second stage combustion site; and gas supply means; wherein the gas supply means is adapted to supply gas switchably between a first mode of operation wherein air is supplied in suitable proportion to both the combustion gas input conduit and the overfire gas input conduit; and a second mode of operation wherein an oxygen containing gas other than air is supplied to the combustion gas input conduit and substantially no gas is supplied to the overfire gas input conduit.

    Abstract translation: 描述了一种用于燃烧装置的燃烧器,包括这种燃烧器的燃烧装置及其操作方法。 燃烧器包括:用于向燃烧器供应燃料的燃料输入管道; 燃烧气体输入管道,用于向第一级燃烧位置供应燃烧气体; 用于向第二级燃烧位置供应过热气体的过高气体输入管道; 和供气装置; 其中所述气体供应装置适于在第一操作模式之间切换地供应气体,其中以与所述燃烧气体输入管道和所述过燃气体输入导管两者适当比例地供应空气; 以及第二操作模式,其中除了空气之外的含氧气体被供应到燃烧气体输入管道,并且基本上没有气体被供应到过热气体输入管道。

    METHOD FOR DECREASING NITROGEN OXIDES OF A PULVERIZED COAL BOILER USING BURNERS OF INTERNAL COMBUSTION TYPE
    166.
    发明申请
    METHOD FOR DECREASING NITROGEN OXIDES OF A PULVERIZED COAL BOILER USING BURNERS OF INTERNAL COMBUSTION TYPE 审中-公开
    使用内燃机燃烧器减少燃烧煤锅炉的氮氧化物的方法

    公开(公告)号:US20110033807A1

    公开(公告)日:2011-02-10

    申请号:US12921658

    申请日:2008-06-18

    Abstract: A method for decreasing nitrogen oxides of a pulverized coal boiler using burners (2) of internal combustion type comprising: designing or changing all or part of burners of the pulverized coal boiler as internal combustion type burners (2), in which the ignition sources may be plasma generators (1) or ignition devices such as small oil guns etc., and the power thereof can be adjusted for controlling the ignition intensity in the burners (2). The burners (2) are interiorly divided into several stage combustion chambers (5) and are provided with pulverized coal concentrators (4) which do deep fuel staging in the burners (2). During the operation of the boiler, the ignition sources always keep in a working state, and the pulverized coal in the burners (2) is ignited stage by stage and is burnt in advance; decreasing the secondary air amount in the primary combustion zone (22) so that the primary combustion zone (22) is in a relatively strong reducing atmosphere and a high temperature and oxygen-deficient condition for inhibiting the generation of NOx is created; and supplying the remaining air from the upper of furnace of the boiler in the form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing the boiler efficiency.

    Abstract translation: 一种使用内燃式燃烧器(2)减少粉煤锅炉的氮氧化物的方法,包括:设计或改变作为内燃式燃烧器(2)的粉煤锅炉的全部或部分燃烧器,其中点火源可以 等离子体发生器(1)或小型油枪等点火装置,并且其功率可以被调节以控制燃烧器(2)中的点火强度。 燃烧器(2)内部分为几级燃烧室(5),并设置有在燃烧器(2)中进行深度燃料分级的粉煤集中器(4)。 在锅炉运行期间,点火源始终处于工作状态,燃烧器(2)中的粉煤逐级点火,并预先燃烧; 减少主燃烧区(22)中的二次空气量,使得第一燃烧区(22)处于相对较强的还原气氛中,并且产生用于抑制NOx的产生的高温和缺氧条件; 并且以过火空气的形式从锅炉的上部供应剩余的空气,使得在整个炉中进行深空气分级。 因此,在不降低锅炉效率的前提下,能够有效地控制NOx的产生。

    Heater and method of operation
    168.
    发明授权
    Heater and method of operation 有权
    加热器和操作方法

    公开(公告)号:US07819656B2

    公开(公告)日:2010-10-26

    申请号:US11804362

    申请日:2007-05-18

    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。

    Combustion apparatus to reduce flue gas NOx by injection of n-agent droplets and gas in overfire air
    169.
    发明授权
    Combustion apparatus to reduce flue gas NOx by injection of n-agent droplets and gas in overfire air 有权
    燃烧装置通过在过火空气中注入n剂液滴和气体来减少烟道气NOx

    公开(公告)号:US07776279B2

    公开(公告)日:2010-08-17

    申请号:US12123136

    申请日:2008-05-19

    Abstract: A combustion apparatus for combusting including: a boiler defining an enclosed flue gas path having a combustion zone and a burnout zone, wherein flue gas is formed in the combustion zone and the combustion flue gas comprising nitrogen oxides; a fuel injector aligned with and introducing fuel into the combustion zone and a combustion air injector aligned with and introducing air into the combustion zone; an overfire air system adjacent the burnout zone comprising an overfire air port adjacent the burnout zone and through which overfire air flows into the burnout zone, and a nitrogen reagent injector having an outlet aligned with the overfire air system and injecting nitrogen reagent gas or small droplets into said overfire air, wherein said small droplets have an average diameter of no greater than 50 microns.

    Abstract translation: 一种用于燃烧的燃烧装置,包括:锅炉,限定具有燃烧区和燃烧区的封闭烟道,其中烟道气在燃烧区中形成,燃烧烟气包含氮氧化物; 燃料喷射器,其将燃料对准并将燃料引入燃烧区域;以及燃烧空气喷射器,其将空气对准并将其引入燃烧区域; 邻近燃尽区的过火空气系统包括邻近燃烧区的过火空气口,并且过热空气流过燃烧区;以及氮试剂注射器,其具有与过火空气系统对准的出口并注入氮气反应气体或小液滴 进入所述过火空气,其中所述小液滴具有不大于50微米的平均直径。

    Method and apparatus for staged combustion of air and fuel
    170.
    发明授权
    Method and apparatus for staged combustion of air and fuel 有权
    空气和燃料分段燃烧的方法和装置

    公开(公告)号:US07775791B2

    公开(公告)日:2010-08-17

    申请号:US12036772

    申请日:2008-02-25

    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。

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