公开(公告)号：US20140178176A1

公开(公告)日：2014-06-26

申请号：US14071922

申请日：2013-11-05

Applicant: Hitachi, Ltd.

Inventor： Yasuo TAKAHASHI ,  Tetsuro MORISAKI ,  Chihiro MYOREN ,  Kohta KAWAMURA

IPC: F01D11/24

CPC classification number: F01D11/24 ,  F01D11/18 ,  F01D25/26 ,  F02C3/305 ,  F02C7/1435 ,  F05D2270/3062 ,  F05D2300/50212 ,  Y02T50/675

Abstract: An axial compressor comprising liquid drop feed means for feeding liquid drops to an operating fluid of the compressor, a casing for forming a flow path through which the operating fluid flows down and a plurality of stages, each of which is composed of one continuous rotor blade row and one continuous stator vane row, the axial compressor being structured so that the liquid drops evaporate inside the compressor, characterized in that: the casing is provided with a cavity therein, and the cavity is formed by an outer casing and an inner casing which is enclosing a periphery of the rotor blade rows at the plurality of stages and forming internally a flow path of the operating fluid, and a flow path is provided for feeding the operating fluid to the cavity on a downstream side of a region forming the cavity of the inner casing.

Abstract translation: 一种轴流压缩机，包括用于将液滴供给到压缩机的工作流体的液滴供给装置，用于形成工作流体流过的流动路径的壳体和多个级，每个级由一个连续的转子叶片 行和一个连续的定子叶片排，轴向压缩机被构造成使得液滴在压缩机内部蒸发，其特征在于：壳体在其中设置有空腔，并且空腔由外壳和内壳形成， 在所述多个阶段包围所述转子叶片排的周边并且在内部形成所述工作流体的流动路径，并且提供流动路径用于将所述工作流体供给到形成所述腔的区域的下游侧的所述空腔 内壳。

公开(公告)号：US20130318973A1

公开(公告)日：2013-12-05

申请号：US13905315

申请日：2013-05-30

Applicant: Hitachi, Ltd.

Inventor： Yasuo TAKAHASHI ,  Chihiro MYOREN ,  Kohta KAWAMURA

IPC: F04D29/58

CPC classification number: F04D29/5846 ,  F01D5/145 ,  F01D25/32 ,  F02C3/30 ,  F02C7/1435 ,  F02C9/18 ,  F04D29/706 ,  F05D2260/212 ,  Y02T50/673 ,  Y02T50/675

Abstract: An axial compressor that can remove an attachment within a groove of a casing and recover an effect of suppressing stall on rotor blades, and a gas turbine provided with the axial compressor, are provided. The axial compressor includes a compressor body 6 and a sprayer 9 for spraying droplets in suction gas of the compressor body 6 so that the droplets are introduced into the compressor body 6 and evaporate. The compressor body 6 includes a casing 11, a rotor 12, rotor blades 13, and stator vanes 14. A groove 21 is formed in an inner circumferential surface of the casing 11 so as to be positioned around rotor blades 13 arranged on a front stage side. A purge system 23 is provided that supplies high-pressure air to the groove 21 through communication holes 22.

Abstract translation: 一种轴向压缩机，其可以移除壳体的槽内的附件，并且恢复抑制转子叶片失速的效果，以及设置有轴向压缩机的燃气轮机。 轴向压缩机包括压缩机主体6和用于在压缩机主体6的吸入气体中喷射液滴的喷雾器9，使得液滴被引入压缩机主体6并蒸发。 压缩机主体6包括壳体11，转子12，转子叶片13和定子叶片14.在壳体11的内周面上形成槽21，以便围绕设置在前级的转子叶片13 侧。 提供吹扫系统23，其通过连通孔22向槽21提供高压空气。

公开(公告)号：US20140034752A1

公开(公告)日：2014-02-06

申请号：US13953319

申请日：2013-07-29

Applicant: Hitachi, Ltd.

Inventor： Fumio TAKAHASHI ,  Kazuhito KOYAMA ,  Shigeo HATAMIYA ,  Naohiro KUSUMI ,  Chihiro MYOREN ,  Go AGATA ,  Takaaki SEKIAI

IPC: F02C7/143

CPC classification number: F02C7/1435 ,  F02C3/30 ,  F02C7/141 ,  F04D29/5846

Abstract: In an atomizer constructed to cool inlet air for a gas turbine by spraying fine droplets of water into the inlet air, a spray nozzle is disposed to spray the finely atomized droplets of water from an outer edge of an atomized airstream into a high-speed zone thereof, towards a central region of the airstream. The atomized airstream meets an airstream of a low-speed zone formed at a downstream side, and after the two kinds of airstreams have been mixed and unified, this mixture is supplied to an axisymmetric compressor. Devices such as a feed water pipe and spray nozzle are placed in the low-speed zone so as not to obstruct the airstream.

Abstract translation: 在通过将细小水滴喷入入口空气来冷却用于燃气轮机的入口空气的雾化器中，设置喷嘴以将雾化的雾化水滴从雾化空气流的外边缘喷射到高速区域 朝向气流的中心区域。 雾化气流遇到形成在下游侧的低速区的气流，在两种气流混合统一后，将该混合物供给轴对称压缩机。 诸如给水管和喷嘴的装置被放置在低速区域中，以便不阻塞气流。