Steam generator arrangement
    1.
    发明授权
    Steam generator arrangement 有权
    蒸汽发生器装置

    公开(公告)号:US08042497B2

    公开(公告)日:2011-10-25

    申请号:US12101513

    申请日:2008-04-11

    IPC分类号: F22B23/04

    CPC分类号: F22B35/001

    摘要: A method and apparatus effectively bypasses flue gas through or around selected boiler convection heat transfer tube banks within a new or existing boiler flue. Heat transfer tubes are removed, or omitted in the design of a new boiler flue, forming one or more voids at one or more locations within the tube banks. A bypass flue or conduit is formed within each void, for example using steel plates, along with existing flue walls, or using an integral sleeve. A wall of the bypass flue may include water or steam-cooled tubes. Dampers may be installed at either end of or within the bypass flue to control the amount of flue gas directed through each bypass flue.

    摘要翻译: 一种方法和设备有效地绕过新的或现有的锅炉烟道内的选定的锅炉对流换热管组或其周围的烟气。 换热管在新的锅炉烟道的设计中被去除或省略,在管组内的一个或多个位置处形成一个或多个空隙。 在每个空隙内形成旁路烟道或导管,例如使用钢板以及现有烟道壁,或使用一体式套管。 旁路烟道的壁可以包括水或蒸汽冷却的管。 阻尼器可以安装在旁路烟道的两端或旁边,以控制通过每个旁路烟道的烟气量。

    STEAM GENERATOR ARRANGEMENT
    2.
    发明申请
    STEAM GENERATOR ARRANGEMENT 有权
    蒸汽发生器装置

    公开(公告)号:US20080251037A1

    公开(公告)日:2008-10-16

    申请号:US12101513

    申请日:2008-04-11

    IPC分类号: F22B3/00

    CPC分类号: F22B35/001

    摘要: A method and apparatus effectively bypasses flue gas through or around selected boiler convection heat transfer tube banks within a new or existing boiler flue. Heat transfer tubes are removed, or omitted in the design of a new boiler flue, forming one or more voids at one or more locations within the tube banks. A bypass flue or conduit is formed within each void, for example using steel plates, along with existing flue walls, or using an integral sleeve. A wall of the bypass flue may include water or steam-cooled tubes. Dampers may be installed at either end of or within the bypass flue to control the amount of flue gas directed through each bypass flue.

    摘要翻译: 一种方法和设备有效地绕过新的或现有的锅炉烟道内的选定的锅炉对流换热管组或其周围的烟气。 换热管在新的锅炉烟道的设计中被去除或省略,在管组内的一个或多个位置处形成一个或多个空隙。 在每个空隙内形成旁路烟道或导管,例如使用钢板以及现有烟道壁,或使用一体式套管。 旁路烟道的壁可以包括水或蒸汽冷却的管。 阻尼器可以安装在旁路烟道的两端或旁边,以控制通过每个旁路烟道的烟气量。

    Burner pattern to minimize sidewall corrosion potential
    3.
    发明授权
    Burner pattern to minimize sidewall corrosion potential 失效
    燃烧器图案,以尽量减少侧壁腐蚀电位

    公开(公告)号:US5505146A

    公开(公告)日:1996-04-09

    申请号:US433635

    申请日:1995-05-02

    申请人: Thomas A. Laursen

    发明人: Thomas A. Laursen

    IPC分类号: F23C5/08 F23D1/02

    CPC分类号: F23C5/08

    摘要: A burner system for a furnace includes horizontal rows of cell burners some of which contain a secondary air port vertically spaced from a coal nozzle. The cell burners are in the front and rear walls of the furnace. Near the side walls of the furnace, which are connected between the front and rear walls, additional double-burner cells are provided which include a pair of vertically spaced coal nozzles or burners. Either a single lower row or a lower and upper row of cell burners include the double-burner cells at the side walls. The double cell burners are operated at 1.0 or higher throat stoichiometry. This reduces corrosion at the side walls while only slightly increasing NO.sub.x emission.

    摘要翻译: 用于炉子的燃烧器系统包括水平排的电池燃烧器,其中一些电池燃烧器包含与煤喷嘴垂直间隔开的二次空气端口。 电池燃烧器位于炉的前壁和后壁。 在连接在前壁和后壁之间的炉的侧壁附近,提供了另外的双燃烧器单元,其包括一对垂直间隔开的煤喷嘴或燃烧器。 单个下排或下排和上排单元燃烧器包括在侧壁处的双燃烧器单元。 双电池燃烧器以1.0或更高的喉部化学计量运行。 这减少了侧壁的腐蚀,同时仅稍微增加NOx排放。

    Low NO.sub.x burner system
    4.
    发明授权
    Low NO.sub.x burner system 失效
    低NOx燃烧器系统

    公开(公告)号:US5205226A

    公开(公告)日:1993-04-27

    申请号:US850600

    申请日:1992-03-13

    IPC分类号: F23C99/00 F23C5/00 F23D1/02

    摘要: A low NO.sub.x burner system for a furnace having spaced apart front and rear walls, comprises a double row of cell burners on each of the front and rear walls. Each cell burner is either of the inverted type with a secondary air nozzle spaced vertically below a coal nozzle, or the non-inverted type where the coal nozzle is below the secondary air port. The inverted and non-inverted cells alternate or are provided in other specified patterns at least in the lower row of cells. A small percentage of the total air can be also provided through the hopper or hopper throat forming the bottom of the furnace, or through the boiler hopper side walls. A shallow angle impeller design also advances the purpose of the invention which is to reduce CO and H.sub.2 S admissions while maintaining low NO.sub.x generation.

    摘要翻译: 用于具有间隔开的前壁和后壁的炉的低NOx燃烧器系统包括在前壁和后壁中的每一个上的双排电池燃烧器。 每个电池燃烧器是倒置式的,二次空气喷嘴在煤喷嘴下方垂直间隔开,或者是非喷嘴型,煤喷嘴在二次空气口下方。 反向和非反转的单元交替或者至少在下一行单元中以其它指定的图案提供。 总空气的一小部分也可以通过形成炉底的料斗或料斗喉部,或通过锅炉料斗侧壁提供。 浅角叶轮设计还提出了本发明的目的,其目的是在保持低NOx产生的同时减少CO和H2S入口。