Combustor for gas turbine
    5.
    发明授权
    Combustor for gas turbine 失效
    燃气轮机燃烧器

    公开(公告)号:US4766721A

    公开(公告)日:1988-08-30

    申请号:US917973

    申请日:1986-10-14

    摘要: A combustor of two-stage combustion type in which fuel is supplied only from primary fuel nozzles for combustion only in primary combustion chamber under the operating condition where gas turbine load is low, and premixed mixture is supplied into a secondary combustion chamber provided on the downstream side of the primary combustion chamber for combustion in both the primary and secondary combustion chambers under the operating condition where the load is high. An air-bleed passageway opens on a downstream side of air holes for intaking secondary combustion air to be mixed with secondary fuel and communicates with the outside of the combustor. The air-bleed passageway is provided with a regulating valve and the secondary combustion air is bled at the minimum point of the load where the secondary fuel is supplied so that the fuel to air ratio of secondary premixed mixture may not be excessively lean, thereby reducing the production of non-burned components.

    摘要翻译: 一种二级燃烧式的燃烧器,其中,在燃气轮机负荷低的运行条件下,燃料仅从主燃料喷嘴供给燃料,仅在一级燃烧室中燃烧,并且将预混合物供给到设置在下游的二次燃烧室 在一次燃烧室中,在负载高的运行条件下在一次燃烧室和二次燃烧室中燃烧。 排气通道在气孔的下游侧开口,用于吸入与二次燃料混合的二次燃烧空气并与燃烧器的外部连通。 排气通道设置有调节阀,二次燃烧空气在供给二次燃料的负载的最小点处排出,使得二次预混混合物的燃料与空气的比例可能不会过度减少,从而减少 生产非烧成分。

    Combined gas turbine plant
    6.
    发明授权
    Combined gas turbine plant 失效
    燃气轮机组合

    公开(公告)号:US4907406A

    公开(公告)日:1990-03-13

    申请号:US209939

    申请日:1988-06-22

    摘要: A combined gas turbine plant comprises an air compressor, a combustor including a combustion chamber, a gas turbine, a steam turbine, and an exhaust heat recovery device having a denitration device and arranged at a location through which an exhaust gas passage for leading exhaust gas from the gas turbine to the atmosphere extends. An air extraction pipe equipped with a valve is provided for extracting a part of the air from the air compressor to prevent surging of the air compressor during starting of the plant, and another air extraction pipe equipped with a valve is provided for extracting a part of the air from an air passage extending from the compressor to the combustion chamber to improve stability of a flame and combustibility in the combustion chamber during the plant starting. The extraction pipes extend to and hence lead the extracted air into a portion of the exhaust gas passage located downstream of the denitration device.

    摘要翻译: 一种组合式燃气轮机设备包括空气压缩机,包括燃烧室,燃气轮机,蒸汽轮机和具有脱硝装置的排气热回收装置的燃烧器,并且设置在排气通道中, 从燃气轮机到大气延伸。 提供了一种配备有阀的抽气管,用于从空气压缩机中提取一部分空气,以防止在启动设备期间空气压缩机的浪涌,并且提供另一个装有阀的空气抽取管,用于提取一部分 来自空气通道的空气从压缩机延伸到燃烧室,以提高火焰的稳定性和在工厂起动期间在燃烧室中的可燃性。 提取管延伸到并因此将抽出的空气引入位于脱硝装置下游的排气通道的一部分。

    Gas turbine combustor
    7.
    发明授权
    Gas turbine combustor 失效
    燃气轮机燃烧器

    公开(公告)号:US4677822A

    公开(公告)日:1987-07-07

    申请号:US831855

    申请日:1986-02-24

    IPC分类号: F02C9/16 F23R3/26 F02C3/14

    CPC分类号: F23R3/26

    摘要: A gas turbine combustor having a head combustion chamber and a rear combustion chamber, with a plurality of air supply ports arranged in a circumferential wall of the rear combustion chamber, and a fuel nozzle. An outer cylinder forms a cylindrical air flow passage between the inner cylinder and the outer cylinder. A cylindrical control member is provided which is adapted to be movable in an axial direction for regulating an opening of the air supply ports. The control member is supported by a supporting means which is adapted to maintain a gap between the control member and the wall of the rear combustion chamber. The supporting member includes a flexible member for absorbing a deformation of the control member during the axial movement of the control member so that it is possible to prevent, if not avoid, mechanical wear on the control member and to reduce the No.sub.x concentration as well as obtain a highly reliable operation of the gas turbine combustor.

    摘要翻译: 一种具有头燃烧室和后燃烧室的燃气轮机燃烧器,其具有布置在后燃烧室的周壁中的多个供气口和燃料喷嘴。 外筒在内筒和外筒之间形成圆柱形的气流通道。 提供一个圆柱形控制件,其适于在轴向方向上可移动以调节供气口的开口。 控制构件由适于在控制构件和后燃烧室的壁之间保持间隙的支撑装置支撑。 支撑构件包括用于在控制构件的轴向移动期间吸收控制构件的变形的柔性构件,使得可以防止(如果不避免)控制构件上的机械磨损并且降低Nox浓度以及 获得燃气轮机燃烧器的高度可靠的操作。

    Method of starting gas turbine plant
    10.
    发明授权
    Method of starting gas turbine plant 失效
    启动燃气轮机厂的方法

    公开(公告)号:US4683715A

    公开(公告)日:1987-08-04

    申请号:US807945

    申请日:1985-12-12

    摘要: A method of starting a gas turbine plant, which plant has at least one combustor including a primary combustion chamber into which primary fuel nozzles open and a secondary combustion chamber into which secondary fuel nozzles open, a compressor for supplying the combustor with compressed combustion air, and a gas turbine driven by the combustion gas generated in the combustor and adapted to drive a load such as an electric power generator. When the gas turbine is being accelerated to a rated speed or while the load is still below a normal load range, a fuel is supplied only to the primary fuel nozzle, whereas, in other loaded operation range, the fuel is supplied to both the primary and secondary fuel nozzles. Before the fuel supply to the secondary fuel nozzles is commenced, a part of the compressed air is bled through at least one air bleed pipe leading from the compressor and having an air bleed valve. The air bleed valve is controlled in such a manner that the opening degree thereof is maximized when the fuel supply to the secondary fuel nozzles is commenced and is progressively decreased in accordance with the increase of the load such as to become substantially zero when the load has been increased to the normal load range.

    摘要翻译: 一种启动燃气轮机设备的方法,该设备具有至少一个燃烧器,该燃烧器包括初级燃料喷嘴打开的初级燃烧室和次级燃料喷嘴打开的二级燃烧室,用于向燃烧室供应压缩的燃烧空气的压缩机, 以及由在燃烧器中产生的燃烧气体驱动并适于驱动诸如发电机的负载的燃气轮机。 当燃气轮机正在加速到额定转速或负载仍然低于正常负载范围时,仅向主燃料喷嘴供应燃料,而在其他装载操作范围内,将燃料供应给主燃料 和二次燃料喷嘴。 在开始向二次燃料喷嘴供应燃料之前,一部分压缩空气通过至少一个从压缩机引出的排气管排出并具有排气阀。 控制排气阀,使得当向二次燃料喷嘴供应的燃料开始时,其开度最大化,并且随着负载的增加逐渐减小,当负载已经变为基本为零时 增加到正常负载范围。