External dilution air tuning for dry low NOx combustors and methods therefor
    4.
    发明授权
    External dilution air tuning for dry low NOx combustors and methods therefor 有权
    干式低NOx燃烧器的外部稀释空气调节及其方法

    公开(公告)号:US06331110B1

    公开(公告)日:2001-12-18

    申请号:US09578663

    申请日:2000-05-25

    IPC分类号: F23D1448

    摘要: Dilution sleeves are provided in radially aligned openings in the combustion liner and flow sleeve of a combustor for a gas turbine. The sleeves have a flange for seating on a collar of the flow sleeve about the opening therethrough enabling the dilution sleeve to extend through the aligned openings. A cover is removably mounted on the outer casing and a spring bears between the cover and the dilution sleeve flange to maintain the dilution sleeve in the openings. Dilution sleeves having different cross-sectional flow areas may be provided in lieu of initially installed dilution sleeves upon comparing measured emission levels with desired emission levels and ascertaining the desired increase or decrease in cross-sectional flow area through the dilution sleeves.

    摘要翻译: 稀释套管设置在用于燃气轮机的燃烧器的燃烧衬套和流动套筒中的径向对齐的开口中。 袖子具有法兰,用于围绕开口穿过流动套筒的套环,使得稀释套筒能够延伸穿过对准的开口。 盖可拆卸地安装在外壳上,并且弹簧承载在盖和稀释套筒凸缘之间,以将稀释套保持在开口中。 可以提供具有不同截面流动面积的稀释套管来代替初始安装的稀释套筒,将测量的排放水平与期望的排放水平进行比较,并确定通过稀释套管的横截面积面积的期望增加或减少。