Method and apparatus for reducing nitrous oxide emissions from combustors
    5.
    发明授权
    Method and apparatus for reducing nitrous oxide emissions from combustors 失效
    用于减少燃烧器中一氧化二氮排放的方法和装置

    公开(公告)号:US4226083A

    公开(公告)日:1980-10-07

    申请号:US870789

    申请日:1978-01-19

    CPC分类号: F23R3/286 F23R3/12

    摘要: An improved combustor for a gas turbine engine is disclosed. Techniques for reducing the level of noxious pollutants emitted by the combustor are developed. In one embodiment, a combination of serpentine geometried, fuel-mixing tubes discharging to the radially outward area of the combustor and an axially oriented, fuel-mixing tube near the center of the combustor are adapted to generate a strong centrifugal force field within the combustor. The force field promotes rapid mixing and combustion within the chamber to reduce both the magnitude of the combustor temperature and the period of exposure of the medium gases to that temperature. In accordance with the method taught, the fuel air ratio in the serpentine mixing tubes is maintained within the range of 0.035 to 0.05 and the fuel air ratio in the axial mixing tube is maintained at a value less than 0.05.

    摘要翻译: 公开了一种用于燃气涡轮发动机的改进的燃烧器。 开发了降低燃烧器排放的有害污染物水平的技术。 在一个实施例中,排放到燃烧器的径向向外区域的蛇形几何燃料混合管和靠近燃烧器中心的轴向取向的燃料混合管的组合适于在燃烧室内产生强的离心力场 。 力场促进室内的快速混合和燃烧,以减小燃烧器温度的大小和介质气体暴露于该温度的时间段。 根据所教导的方法,蛇形混合管中的燃料空气比保持在0.035至0.05的范围内,并且轴向混合管中的燃料空气比保持在小于0.05的值。