Burner device for high-temperature air combustion

    公开(公告)号:US09869468B2

    公开(公告)日:2018-01-16

    申请号:US13981848

    申请日:2012-01-27

    摘要: The burner device for high-temperature air combustion according to the present invention is equipped with a thermal insulation portion (5) that is provided facing a furnace (1) and has a throat (6); a burner nozzle (9) that is provided at the axial center of this throat and that injects a pulverized coal mixed flow (38) into the furnace through the throat; a windbox (8) that is provided so as to house this burner nozzle; an air register (16) that is provided at the distal end of the burner nozzle and that injects low-temperature secondary air from the windbox to the throat; a high-temperature air nozzle (23), one end of which opens into the furnace through the heat insulation portion; and a combustion air switching means (16, 24) that switches between injecting low-temperature secondary air to the throat through the air register and injecting high-temperature secondary air to the furnace interior through the high-temperature air nozzle, in which in steady combustion, low-temperature secondary air is injected to the throat through the air register by the combustion air switching means and a pulverized coal mixed flow is injected from the burner nozzle, and in high-temperature air combustion, high-temperature secondary air is injected to the furnace interior through the high-temperature air nozzle by the combustion air switching means and a pulverized coal mixed flow is injected from the burner nozzle.

    Burner with Adjustable End Cap and Method of Operating Same

    公开(公告)号:US20170350589A1

    公开(公告)日:2017-12-07

    申请号:US15175987

    申请日:2016-06-07

    IPC分类号: F23C9/08 F22B9/08 F22B7/00

    摘要: A boiler system comprises a housing with a generally cylindrical shape extends between first and second walls to provide a generally cylindrical space. A fire tube is positioned near a bottom of the generally cylindrical housing and extends longitudinally from a first wall of the cylindrical housing to a fire tube end wall. The boiler system also includes a burner with a generally cylindrical housing which defines a generally cylindrical chamber and an end plate. The burner extends into the fire tube, and the fire tube provides a combustion chamber where combustion of an air-fuel mixture is accomplished using the burner. The end plate of the burner is adjustable so as to adjust the flame that extends from within the burner housing into the fire tube.

    AXIALLY STAGED MIXER WITH DILUTION AIR INJECTION
    9.
    发明申请
    AXIALLY STAGED MIXER WITH DILUTION AIR INJECTION 审中-公开
    带有稀释空气注射的轴式搅拌机

    公开(公告)号:US20160178207A1

    公开(公告)日:2016-06-23

    申请号:US14970857

    申请日:2015-12-16

    摘要: A method is disclosed for operating an axially staged mixer arrangement with dilution air or dilution gas injection in connection with a combustion arrangement of a gas turbine engine or turbo machinery, having at least one combustion chamber, at least one mixer arrangement for admixing air or gas portions to the hot gas flow leaving the combustion chamber. The mixer arrangement includes a plurality of injectors for admixing air portions to cool at least the hot gas flow leaving combustion chamber. The spacing between the last injection location of acting injectors and at least one subsequently arranged dilution air injection, inside of the mixer arrangement in the hot gas flow, where there is no node between the injection locations, corresponds to a distance equal or approximating to half of convective wave length.

    摘要翻译: 公开了一种用于操作具有稀释空气或稀释气体注入的轴向分段混合器装置的方法,其与具有至少一个燃烧室的燃气涡轮发动机或涡轮机械的燃烧装置连接,至少一个用于混合空气或气体的混合器装置 部分到离开燃烧室的热气流。 混合器装置包括多个喷射器,用于混合空气部分以至少冷却离开燃烧室的热气流。 在喷射位置之间没有节点的热气流中的混合器装置内部,作用喷射器的最后喷射位置与至少一个随后排列的稀释空气喷射之间的间距对应于等于或近似于一半 的对流波长。

    METHODS AND SYSTEMS FOR REDUCING EMISSIONS OF NITROGEN OXIDES FROM RIBBON BURNERS
    10.
    发明申请
    METHODS AND SYSTEMS FOR REDUCING EMISSIONS OF NITROGEN OXIDES FROM RIBBON BURNERS 审中-公开
    减少氮氧化物燃烧器排放的方法和系统

    公开(公告)号:US20160178194A1

    公开(公告)日:2016-06-23

    申请号:US14576565

    申请日:2014-12-19

    IPC分类号: F23C9/08 F23D14/02

    摘要: Methods and systems for improving burner, particularly ribbon burner performance, involving admixing a portion of the combustion products from the flue gas resulting from the burner to at least one of a primary and a secondary oxidizer supply to the burner. Admixing a portion of a carbon dioxide-containing flue gas combustion product formed upon combustion of a fuel gas by a ribbon burner significantly reduces NOx emissions resulting from operation of the burner.

    摘要翻译: 用于改善燃烧器,特别是带式燃烧器性能的方法和系统,包括将来自燃烧器产生的烟道气的一部分燃烧产物混合到燃烧器的主要和次级氧化剂供应中的至少一个。 混合通过带式燃烧器燃烧燃料气体时形成的含二氧化碳的烟道气燃烧产物的一部分显着地减少了由燃烧器操作引起的NOx排放。