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    COMBUSTION DEVICE
    2.
    发明公开
    COMBUSTION DEVICE 审中-公开

    公开(公告)号：EP2679899A4

    公开(公告)日：2018-01-24

    申请号：EP11859242

    申请日：2011-02-22

    申请人： MITSUBISHI HITACHI POWER SYS

    发明人： OCHI YUSUKE ,  KURAMASHI KOUJI ,  KIYAMA KENJI ,  OKAZAKI HIROFUMI

    IPC分类号： F23L9/00 ,  F23C6/04 ,  F23D1/00

    CPC分类号： F23D1/005 ,  F23C6/045 ,  F23C2201/101 ,  F23D1/00 ,  F23L1/00 ,  F23L9/00

    摘要： Provided is a boiler having plurality of burners (19) arranged on a furnace wall (10) of a furnace (18), each burner (19) comprising: a cylindrical fuel nozzle (3) for injecting a mixture of fuel and carrier gas therefor into the furnace (18); one or more cylindrical air nozzles (8, 11) provided on the outer circumference of the nozzle (3) for injecting combustion air into the furnace, and a wind box (12) for supplying combustion air to the nozzles (8, 11) in common. The wind box (12) is provided with openings (12a, 12b) through which combustion air flows in from one direction perpendicular to the axial direction of the burner (19), and is partitioned by a partition wall (14) to form plurality of parallel flow paths for the air flowing in through the openings. Some of the plurality of flow paths are connected to an upper part of the combustion air nozzle (8), and the other flow paths are connected to a lower part of the nozzle (8). Each of the plurality of combustion air flow paths is independently provided with an air momentum deviation damper (15) and an air flow rate adjustment damper (17), such that the direction of the flame of the burner (19) can be changed between upward and downward directions inside the furnace (18) depending on a combustion condition such as a load.

    COMBUSTION DEVICE
    3.
    发明公开
    COMBUSTION DEVICE 审中-公开
    VERBRENNUNGSVORRICHTUNG

    公开(公告)号：EP3021046A4

    公开(公告)日：2017-02-22

    申请号：EP14823332

    申请日：2014-07-08

    申请人： MITSUBISHI HITACHI POWER SYS

    发明人： KIYAMA KENJI ,  SHIMOGORI MIKI ,  MINE TOSHIHIKO ,  TADAKUMA SATOSHI ,  OCHI KENICHI ,  KURAMASHI KOJI ,  OCHI YUSUKE ,  BABA AKIRA ,  KONDO YUKI

    IPC分类号： F23L9/02 ,  F23C6/04

    CPC分类号： F23L9/04 ,  F23C5/28 ,  F23C6/045 ,  F23C2201/101 ,  F23L9/02

    摘要： In accordance with the flow distribution of combustion gas including an unburned portion, an after-air port (AAP) arranged downstream of the two-stage combustion burner can effectively reduce the unburned portion by dividing as appropriate so as to avoid interaction, and by mixing together, two types of after-air having functions of linearity and spreading. As the configuration of this AAP (7), a primary nozzle (5) for supplying primary after-air (1) and having a vertical height greater than the horizontal width is provided in the center in the opening (17) of the AAP (7), a secondary nozzle (14) for supplying secondary after-air (11) is provided in the opening (17) outside of the primary nozzle (5), and one or more secondary after-air guide vanes (15) having a fixed or variable tilt angle relative to the after-air port center axis (C o ) are provided at the outlet of the said secondary nozzle (14) to deflect and supply the secondary after-air (11) horizontally to the left or right.

    摘要翻译： 根据包括未燃烧部分的燃烧气体的流量分布，布置在两级燃烧器下游的后空气口（AAP）可以通过适当地分开来有效地减少未燃烧部分，以避免相互作用，并通过混合 一起，具有线性和扩展功能的两种类型的空气。 作为该AAP（7）的构造，在AAP的开口（17）的中央设有用于供给主要空气（1）并且具有大于水平宽度的垂直高度的主喷嘴（5） 如图7所示，在主喷嘴（5）外侧的开口（17）中设置有用于供给二次空气（11）的二次喷嘴（14），以及一个或多个二次空气导流叶片（15） 在所述副喷嘴（14）的出口处设置相对于后空气口中心轴线（C o）的固定或可变倾斜角度，以使二次空气（11）向左或向右水平地偏转和供应。