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    Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions
    3.
    发明授权
    Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions 有权
    碳氢裂解炉采用蒸汽添加降低单氮氧化物排放

    公开(公告)号：US08703064B2

    公开(公告)日：2014-04-22

    申请号：US13066211

    申请日：2011-04-08

    申请人： David C. Payne

    发明人： David C. Payne

    IPC分类号： B01J19/00 ,  C10G9/00 ,  C10G9/20 ,  F23C6/04 ,  F23C5/08

    CPC分类号： C10G9/206 ,  B01J2219/00157 ,  C10G9/00 ,  C10G2300/1044 ,  C10G2300/1059 ,  C10G2300/1081 ,  C10G2300/405 ,  C10G2300/4056 ,  C10G2300/807 ,  C10G2400/20 ,  C10G2400/30 ,  F23C5/08 ,  F23C6/045 ,  F23C2201/20 ,  F23C2201/40

    摘要： An apparatus and method is presented for reducing mono nitrogen oxide emissions in a hydrocarbon processing furnace. A preferred embodiment hydrocarbon cracking furnace includes a firebox with a set of wall burners and a set of floor burners, the floor burners comprising secondary burner tips burning a fuel-rich mixture and positioned below primary burner tips burning a fuel-lean mixture. A portion of flue gases are recirculated from the primary burner combustion area to the secondary burner combustion area and back to the primary burner combustion area. The floor burners further comprise a set of steam injection ports that inject steam into a conical flow to contact flames at the primary burner tips, reducing flame temperature and thereby reducing thermal NOx. The steam injection ports are positioned in the firebox above the primary burner tips.

    摘要翻译： 提出了用于减少烃加工炉中的单氮氧化物排放的装置和方法。 优选的实施方案碳氢化合物裂解炉包括具有一组壁式燃烧器和一组地板燃烧器的火箱，地板燃烧器包括燃烧富燃料混合物并定位在燃烧贫燃料混合物的主燃烧器尖端下方的辅助燃烧器尖端。 烟气的一部分从主燃烧器燃烧区再循环到二次燃烧器燃烧区域并返回到主燃烧器燃烧区域。 地板燃烧器还包括一组蒸汽注入口，其将蒸汽注入到锥形流中以接触主燃烧器尖端处的火焰，降低火焰温度并由此减少热NOx。 蒸汽喷射口位于主燃烧器尖端上方的火箱中。

    DEVICE FOR HEATING A FLUID
    9.
    发明申请
    DEVICE FOR HEATING A FLUID 有权
    用于加热流体的装置

    公开(公告)号：US20140245717A1

    公开(公告)日：2014-09-04

    申请号：US14349820

    申请日：2012-10-09

    申请人： SNECMA

    发明人： Didier Vuillamy ,  Jean-Luc Barthoulot ,  Jean-Michel Sannino

    IPC分类号： F02K9/50 ,  F02K9/60 ,  F28D7/00

    CPC分类号： F02K9/50 ,  F02K9/60 ,  F23C6/04 ,  F23C2201/40 ,  F23C2201/401 ,  F23C2900/06041 ,  F28D7/00 ,  F28D7/06 ,  F28D7/1615 ,  F28D2021/0026 ,  F28F1/16 ,  F28F1/36 ,  F28F9/22

    摘要： A device heating a fluid and usable in a rocket launcher to pressurize a liquefied propellant. The device includes a first burner performing first combustion between a limiting propellant and an excess propellant; a first heat exchanger in which first burnt gas from the first combustion transfers heat to the fluid; at least one second burner into which both the first burnt gas and some limiting propellant are injected to perform second combustion between the limiting propellant and at least a portion of unburnt excess propellant present in the first burnt gas. The second burnt gas from the second combustion flows through a second heat exchanger to transfer heat to the fluid. Burnt gas from each combustion flows in respective burnt gas tubes within a common overall heat exchanger including the heat exchange units, the gas transferring heat to the fluid, the fluid flowing between the burnt gas tubes.

    摘要翻译： 一种加热流体并可用于火箭发射器以对液化推进剂加压的装置。 该装置包括在限制推进剂和过量推进剂之间执行第一燃烧的第一燃烧器; 第一热交换器，其中来自第一燃烧的第一燃烧气体将热量传递到流体; 至少一个第二燃烧器，其中喷射第一燃烧气体和一些限制性推进剂，以在第一燃烧气体中存在的限制推进剂和至少一部分未燃烧的过量推进剂之间进行第二燃烧。 来自第二燃烧的第二燃烧气体流过第二热交换器以将热量传递给流体。 来自每个燃烧的燃烧气体在包括热交换单元，向流体传输热的气体，在燃烧气体管之间流动的流体的气体的公共整体热交换器内的各个燃烧气体管中流动。