Large diameter Mid-Zone air separation cone for expanding IRZ
    1.
    发明公开
    Large diameter Mid-Zone air separation cone for expanding IRZ 有权
    中央空气分配锥的大直径扩大内部Rezirkulationsgebietes

    公开(公告)号:EP1862737A3

    公开(公告)日:2014-02-26

    申请号:EP07252206.3

    申请日:2007-05-30

    IPC分类号: F23D1/00

    CPC分类号: F23D1/00 F23D2900/01001

    摘要: A large diameter mid-zone air separation cone is provided for decreasing NOx during burner operation by expanding the internal recirculation zone (IRZ) at the burner exit. The mid-zone air separation cone has a short cylindrical leading edge that fits in the outer air zone of a burner. The mid-zone air separation cone splits the outer air zone secondary air flow into two equal or unequal streams depending on the position of the air separation cone with respect to the outer air zone, and deflects a portion of the secondary air flow radially outward. Since the radial position of the air separation cone is farther from the burner centerline, the IRZ size is expanded and NOx emissions are minimized.

    摘要翻译: 大直径中间区的空气分离锥被提供用于通过在燃烧器出口扩大的内部再循环区域(IRZ)外科手术过程中减少NO x燃烧器。 中期区空气分离锥具有短圆柱前沿做配合在燃烧器的外空区。 中间区的空气分离锥拆分外空气区的二次空气流分成两个相等的或不相等的流根据空气分离锥相对于外部空气区域的位置,并且偏转二次空气流的一部分径向向外。 由于空气分离锥的径向位置更远离燃烧器中心线,所述IRZ尺寸被扩大和NOx排放最小化。