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    • 9. 发明申请
    • BURNER, AND COMBUSTION EQUIPMENT AND BOILER COMPRISING BURNER
    • 燃烧器和燃烧设备和包含燃烧器的锅炉
    • US20100064986A1
    • 2010-03-18
    • US12442745
    • 2007-03-27
    • Kenji KiyamaAkira BabaTakanori YanoOsamu OkadaHirofumi OkazakiKouji Kuramashi
    • Kenji KiyamaAkira BabaTakanori YanoOsamu OkadaHirofumi OkazakiKouji Kuramashi
    • F24H1/00F23L9/00F23C1/10
    • F23D1/005F22B1/1869F22B21/26F23D1/00F23D2201/10F23D2201/20
    • The present invention provides a solid fuel burner, which, while rendering the capacity larger than that in the conventional art, can suppress an increase in an unignited region and thus can realize the prevention of an increase in NOx concentration in a combustion gas and the prevention of a lowering in combustion efficiency, and a combustion equipment and boiler including the burner. The burner includes a fuel-containing fluid supply nozzle (12) which supplies a fuel-containing fluid, from a connecting part in a fluid transfer flow passage (10) for transferring a fuel-containing fluid including a fuel and a medium for transfer of the fuel, toward an outlet part provided on the wall of a furnace (4). The fuel-containing fluid supply nozzle (12) in its cross section perpendicular to the direction of flow of the fluid is in a rectangular, elliptical, or substantially elliptical form having major and minor axis parts from a connecting part (10a) in the fluid transfer flow passage (10) toward the outlet part provided on the wall surface of the furnace (4). Further, the area of a cross section perpendicular to the direction of flow of the fluid is gradually increased from the connecting part in the fluid transfer flow passage (10) toward the outlet part. One or more air supply nozzles (15) for supplying combustion air are provided on the outer peripheral part of the nozzle (12).
    • 本发明提供一种固体燃料燃烧器,其在使现有技术中的容量大的同时,可以抑制未燃区域的增加,从而可以实现防止燃烧气体中的NOx浓度的增加和防止 燃烧效率降低,以及包括燃烧器的燃烧设备和锅炉。 燃烧器包括一个含燃料的流体供应喷嘴(12),该燃料供给流体供应喷嘴(12)从用于传送包含燃料的含燃料流体和用于转移的介质的流体转移流动通道(10)中的连接部分提供含燃料流体 燃料,朝向设置在炉(4)的壁上的出口部分。 在与流体的流动方向垂直的横截面中的含燃料流体供给喷嘴(12)呈矩形,椭圆形或基本上椭圆形,具有从流体中的连接部分(10a)的主轴和短轴部分 转移流道(10)朝向设置在炉(4)的壁表面上的出口部分。 此外,垂直于流体流动方向的横截面的面积从流体传送流路(10)中的连接部朝向出口部逐渐增大。 在喷嘴(12)的外周部设置有用于供给燃烧空气的一个或多个供气喷嘴(15)。