公开(公告)号：US20140325990A1

公开(公告)日：2014-11-06

申请号：US14070805

申请日：2013-11-04

Applicant: Hitachi, Ltd.

Inventor： Hiroki TAKEDA ,  Ryo AKIYAMA ,  Yasuo TAKAHASHI

IPC: F02C3/30

CPC classification number: F02C3/30 ,  F01D17/16 ,  F01K21/047 ,  F02C9/20 ,  F05D2260/2322 ,  F05D2270/082 ,  F05D2270/101 ,  F05D2270/16 ,  Y02E20/14 ,  Y02E20/16

Abstract: A gas turbine having a compressor for compressing air, a combustor for taking in compressed air discharged from the compressor, mixing it with fuel, and burning them, and a turbine driven by combustion gas generated in the combustor, comprising: inlet guide vanes installed at a stage near an inlet of the compressor for adjusting a compressor flow rate by changing an attaching angle thereof, a steam injection mechanism for injecting steam to the combustor, a steam adjustment valve for adjusting the steam injection rate, and a steam rate control mechanism for adjusting an opening of the steam adjustment valve, a steam monitoring mechanism for monitoring the steam rate injected to the combustor, an air temperature monitoring mechanism for monitoring an atmospheric temperature, and a control unit for determining whether a restriction value of the steam injection rate using a temperature, an opening of the inlet guide vanes, and the steam injection rate as indexes is satisfied, and controlling at least one of a temperature of air flowing into the compressor, the steam injection rate, and the inlet guide vane opening.

Abstract translation: 一种具有用于压缩空气的压缩机的燃气轮机，用于吸入从压缩机排出的压缩空气的燃烧器，将其与燃料混合并燃烧的燃气轮机，以及由燃烧器中产生的燃烧气体驱动的涡轮，包括：入口导向叶片，安装在 用于通过改变其附着角度来调节压缩机流量的压缩机附近的阶段，用于向燃烧器喷射蒸汽的蒸汽喷射机构，用于调节蒸汽喷射速率的蒸汽调节阀，以及用于 调节蒸汽调节阀的开度，用于监测喷射到燃烧器的蒸汽速率的蒸气监测机构，用于监测大气温度的空气温度监测机构，以及控制单元，用于确定是否使用蒸汽喷射速率的限制值 满足入口导向叶片的温度，开口和作为指标的蒸汽喷射速度，并进行控制 进入流入压缩机的空气的温度，蒸汽喷射速度和入口导向叶片开口中的至少一个。

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。