公开(公告)号：US20140056719A1

公开(公告)日：2014-02-27

申请号：US13973110

申请日：2013-08-22

申请人： Hitachi, Ltd.

发明人： Tetsuro MORISAKI ,  Hisato TAGAWA ,  Manabu YAGI ,  Yasuhiro HORIUCHI ,  Shinichi HIGUCHI

IPC分类号： F01D5/18 ,  B23P15/04

CPC分类号： F01D5/186 ,  B22C9/04 ,  B22C9/10 ,  B23P15/04 ,  F01D5/18 ,  F01D5/187 ,  F05D2230/211 ,  Y10T29/49337

摘要： A gas turbine blade includes a hollow-blade-form portion formed by a leading edge on an upstream side of an working fluid of a gas turbine in a flow direction, a trailing edge on a downstream side of the working fluid in the flow direction, and a suction surface and a pressure surface reaching the trailing edge from the leading edge, and a shank portion for supporting the blade form portion. The blade also includes a partition for connecting the suction surface and the pressure surface in a hollow region of the blade-form portion, coolant paths formed by the partition, the suction surface, and the pressure surface, an impingement cooling hole formed in the partition for dividing the first path that is a flow path nearest to the leading edge side among the coolant paths and the second path adjacent to the first path, and first and second converter portions.

摘要翻译： 燃气轮机叶片包括中空叶片形状部分，其由沿着流动方向的燃气轮机的工作流体的上游侧的前缘，流动方向上的工作流体的下游侧的后缘， 以及从所述前缘到达所述后缘的吸力表面和压力表面，以及用于支撑所述刀片形成部分的柄部。 叶片还包括用于连接叶片形部分的中空区域中的吸入表面和压力表面的分隔壁，由隔板，吸力表面和压力表面形成的冷却剂路径，形成在隔板中的冲击冷却孔 用于将最靠近前缘侧的流路的第一路径划分为与第一路径相邻的冷却剂路径和第二路径，以及第一和第二转换器部分。

公开(公告)号：US20160041567A1

公开(公告)日：2016-02-11

申请号：US14781834

申请日：2013-04-05

申请人： HITACHI, LTD.

发明人： Aung KO THET ,  Tomomichi ITOU ,  Noriaki HINO ,  Naohiro KUSUMI ,  Tetsuro MORISAKI ,  Kazuo TAKAHASHI

IPC分类号： G05F1/12 ,  F01D15/10

CPC分类号： G05F1/12 ,  F01D15/10 ,  F05D2220/76 ,  F05D2220/764 ,  H02J3/26 ,  H02P9/42 ,  Y02E40/50

摘要： A gas turbine generation system has a three-phase generator whose rotor is mechanically coupled to a gas turbine. The system comprises a three-phase voltage balancing circuit having elements independently operable for each phase to disperse or cancel unbalanced components of three-phase current, during unbalanced fault in a power grid connected to the generator, result in balancing of the three-phase voltage; and the voltage balancing constitutes a mechanism of avoiding the occurrence of the rotor vibration from mechanical resonance points on turbine blades.

摘要翻译： 燃气轮机发电系统具有三相发电机，其转子机械地联接到燃气轮机。 该系统包括三相电压平衡电路，其具有可独立操作的每个相位的元件，以在连接到发电机的电网中的不平衡故障期间分散或消除三相电流的不平衡分量，导致三相电压 ; 并且电压平衡构成了避免转子振动从涡轮机叶片上的机械共振点发生的机制。

公开(公告)号：US20140216047A1

公开(公告)日：2014-08-07

申请号：US14155813

申请日：2014-01-15

申请人： Hitachi, Ltd.

发明人： Tetsuro MORISAKI ,  Naohiro KUSUMI ,  Noriaki HINO ,  Tomomichi ITO ,  Kazuo TAKAHASHI

IPC分类号： F02C9/56

CPC分类号： F02C9/56 ,  F01D5/06 ,  F01D13/003 ,  F02C3/113 ,  F02C7/268 ,  F02C7/275 ,  F02C7/32 ,  F02C7/36 ,  F02C9/28 ,  F02C9/32 ,  F02C9/34 ,  F02C9/48 ,  F02C9/50 ,  F02C9/54 ,  F03D15/00 ,  F23R3/34 ,  F23R3/343 ,  F23R3/346 ,  Y02E10/72

摘要： A two-shaft gas turbine having high operability is provided. The two-shaft gas turbine includes: a gas generator having a compressor, a combustor and a high pressure turbine; a power turbine having a low pressure turbine; a load connected to the power turbine; a motor/generator capable of rotatably driving the gas generator and capable of extracting power from the gas generator; electric equipment controlling the rotational driving and the power extraction by delivering electric power between the electric equipment and the motor/generator; and a control device controlling the electric equipment, wherein the combustor has a plurality of combustion regions to which a fuel is supplied through fuel adjustment means which are independent from each other, and the control device controls a delivery amount of the electric power delivered by the electric equipment corresponding to the number of combustion regions to which the fuel is supplied.

摘要翻译： 提供了具有高可操作性的双轴燃气轮机。 双轴燃气轮机包括：具有压缩机，燃烧器和高压汽轮机的气体发生器; 具有低压涡轮机的动力涡轮机; 连接到动力涡轮机的负载; 能够旋转地驱动气体发生器并且能够从气体发生器提取动力的电动机/发电机; 电气设备通过在电气设备和电动机/发电机之间传递电力来控制旋转驱动和功率提取; 以及控制所述电气设备的控制装置，其特征在于，所述燃烧器具有多个燃烧区域，所述多个燃烧区域通过彼此独立的燃料调节装置供给燃料，并且所述控制装置控制由所述燃料调节装置输送的电力的输送量 对应于供给燃料的燃烧区域的数量的电气设备。

公开(公告)号：US20140178176A1

公开(公告)日：2014-06-26

申请号：US14071922

申请日：2013-11-05

申请人： Hitachi, Ltd.

发明人： Yasuo TAKAHASHI ,  Tetsuro MORISAKI ,  Chihiro MYOREN ,  Kohta KAWAMURA

IPC分类号： F01D11/24

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

摘要： 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.

摘要翻译： 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。