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    • 1. 发明专利
    • Gas turbine facilities and method for operating gas turbine facilities
    • 气体涡轮机设备和操作气体涡轮机设备的方法
    • JP2009052474A
    • 2009-03-12
    • JP2007220085
    • 2007-08-27
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIROARAKI HIDEFUMIHIGUCHI SHINICHI
    • F02C7/047F02C3/30F02C7/00F02C7/08F02C7/18
    • PROBLEM TO BE SOLVED: To provided gas turbine facilities preventing freeze of spray water sprayed in suction air of a compressor even if outside temperature drops, improving output and thermal efficiency of a gas turbine by water spray, and inhibiting drop of turbine cooling efficiency.
      SOLUTION: The gas turbine facilities are provided with a compressor sucking and compressing air, a gas turbine combustor burning fuel and air, a turbine driven by combustion gas formed by combustion in the gas turbine combustor. The gas turbine facilities is provided with a humidifier humidifying air compressed by the humidifier, is constructed to supply the air humidified by the humidifier to the gas turbine combustor and to burn the fuel together with the humidified air, and is provided with a liquid spray device spraying liquid drops in the air sucked in the compressor. A means heating the air is provided in a suction flow path leading the air to the compressor.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供燃气轮机设备,即使外部温度下降,防止喷射在压缩机的吸入空气中的喷雾水的冻结,通过喷水提高燃气轮机的输出和热效率,并且抑制涡轮冷却的下降 效率。 解决方案:燃气轮机设备设置有压缩空气的压缩机,燃烧燃料和空气的燃气轮机燃烧器,由燃气轮机燃烧器中的燃烧形成的燃烧气体驱动的涡轮机。 燃气轮机设置有由加湿器压缩的加湿器加湿空气,被构造成将由加湿器加湿的空气供给到燃气轮机燃烧器,并与加湿空气一起燃烧燃料,并且设置有液体喷射装置 在吸入压缩机的空气中喷洒液滴。 在将空气引导到压缩机的抽吸流路中设置加热空气的装置。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Gas turbine stationary vane
    • 燃气轮机静音
    • JP2014101889A
    • 2014-06-05
    • JP2014044708
    • 2014-03-07
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIROHIGUCHI SHINICHINODA MASAMI
    • F01D9/02
    • PROBLEM TO BE SOLVED: To provide a turbine stationary vane having effects of suppressing increase of horseshoe shaped-vortex generated near a front edge of the vane, and further suppressing secondary flow in a region held by a negative pressure surface and a pressure surface.SOLUTION: An outer peripheral side end wall inner face 10 as a face at an inner peripheral side of an outer peripheral side end wall has inward projecting shape and outward projecting shape at a negative pressure surface side of a vane profile portion 12, an apex of the inward projecting shape is positioned near a front edge 12a of the vane profile portion, an apex of the outward projecting shape is positioned near the middle between a front edge 12a and a rear edge 12b of the vane profile portion 12, the inward projecting shape is formed from an upstream side in the gas flowing direction with respect to the front edge 12a, and in a region at an upstream side in the gas flowing direction with respect to the outward projecting shape, in which the inward projecting shape is formed, a region (curved line L_end) where radius positions of the outer peripheral side end wall inner face 10 are same on a plane vertical to a turbine rotating shaft, is formed.
    • 要解决的问题:提供一种具有抑制叶片前缘附近产生的马蹄形涡流增加的效果的涡轮静叶片,进一步抑制由负压面和压力面保持的区域中的二次流动。 作为外周侧端壁的内周侧的面的外周侧端壁内面10在叶片型面部12的负压面侧具有向内突出的形状和向外突出的形状, 向内突出的形状位于叶片轮廓部分的前缘12a附近,向外突出形状的顶点位于叶片轮廓部分12的前缘12a和后缘12b之间的中间附近,向内突出的形状为 从气体流动方向的上游侧相对于前缘12a形成,并且在气体流动方向上游侧的区域相对于外侧 形成有向内突出形状的突出形状,在与涡轮旋转轴垂直的平面上形成外周侧端壁内面10的半径位置相同的区域(曲线L_end)。
    • 3. 发明专利
    • Gas turbine blade
    • 气体涡轮叶片
    • JP2014066224A
    • 2014-04-17
    • JP2012213531
    • 2012-09-27
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIROMORISAKI TETSURO
    • F01D5/18F01D9/02F01D25/12F02C7/18
    • PROBLEM TO BE SOLVED: To provide a gas turbine blade capable of reducing pressure loss by reducing a separating region at a film cooling air inlet portion, reducing power of a cooling air supply source, and further improving film cooling efficiency.SOLUTION: A conical inlet portion is disposed at an inlet side of high pressure, of a film cooling hole. The conical shape is defined to have a bottom surface on a wall surface at a high pressure side, of a film cooling hole disposed, for example, on an aerofoil portion of a gas turbine blade, and an end wall portion at an outer peripheral side or an inner peripheral side of the aerofoil portion, to guide cooling air, and to guide the cooling air to a surface of the aerofoil portion and the like.
    • 要解决的问题:提供一种能够通过减少膜冷却空气入口部分的分离区域来减少压力损失的燃气轮机叶片,降低冷却空气供应源的功率,并进一步提高膜冷却效率。解决方案:锥形入口 部分设置在膜冷却孔的高压入口侧。 锥形形状被限定为在高压侧的壁表面上具有底表面,例如设置在例如燃气轮机叶片的机翼部分上的膜冷却孔和外周侧的端壁部分 或翼面部分的内周侧,以引导冷却空气,并将冷却空气引导到机翼部分的表面等。
    • 4. 发明专利
    • Turbine
    • 涡轮
    • JP2014173472A
    • 2014-09-22
    • JP2013045743
    • 2013-03-07
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIRO
    • F01D5/14F01D5/18F01D9/02F01D25/12F02C7/18
    • PROBLEM TO BE SOLVED: To provide a turbine such as a gas turbine or a steam turbine capable of restricting an increasing of a secondary flow under a condition in which a strong secondary flow progresses near its end wall.SOLUTION: A turbine comprises: a turbine blade (12) having a pressure surface (10b) and a negative pressure surface (10a) oppositely facing against the pressure surface (10b) and extending from its inner peripheral end wall, and one through-pass flow passage (45) arranged at the inner peripheral end wall (10) at the turbine blade (12) and communicating between the pressure surface (10b) and the negative pressure surface (10a), and a blade shape of the turbine blade including the through-pass flow passage (45) is formed by two blade shapes (36, 37).
    • 要解决的问题:提供一种涡轮机,例如燃气轮机或蒸汽轮机,其能够在强二次流在其端壁附近进行的条件下限制二次流的增加。解决方案:涡轮机包括:涡轮机 具有压力表面(10b)的压力表面(10b)和与压力表面(10b)相对并且从其内周端壁延伸的负压表面(10a)的叶片(12)和布置在该压力表面上的一个通过流动通道 在涡轮叶片(12)处的内周端壁(10)并且在压力表面(10b)和负压表面(10a)之间连通,并且包括通流流动通道(45)的涡轮叶片的叶片形状, 由两个叶片形状(36,37)形成。
    • 5. 发明专利
    • Turbine rotor blade
    • 涡轮转子叶片
    • JP2014105633A
    • 2014-06-09
    • JP2012259388
    • 2012-11-28
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIRO
    • F01D5/14F01D5/20
    • F01D5/20
    • PROBLEM TO BE SOLVED: To provide a turbine rotor blade capable of suppressing energy loss of a working fluid due to interference with part of a working fluid passing through a blade tip clearance.SOLUTION: In a turbine rotor blade 34 attached to a rotational shaft 33 and rotating inside a turbine casing 31, flow f flowing from a side of a pressure surface 56 and to a side of a negative pressure surface 57 in a blade tip clearance g between a blade tip 63 of the turbine rotor blade 34 and the turbine rotor blade 34 is decelerated by applying a swirling component f'' at a recess part 64 provided on the blade tip surface 63, and thereby a region A where the flow f flowing in the blade tip clearance g and the mainstream of a working fluid on the side of the negative pressure surface 57 are mixed is controlled, and energy loss of the mainstream is suppressed.
    • 要解决的问题:提供一种涡轮转子叶片,其能够抑制由于干扰通过叶片顶端间隙的工作流体的一部分而导致的工作流体的能量损失。解决方案:在附接到旋转轴33的涡轮转子叶片34中 并且在涡轮壳体31内旋转,在涡轮机转子叶片34的叶片尖端63与涡轮转子之间的叶片顶端间隙g中从压力表面56的一侧流到负压表面57的一侧的流动f 通过在设置在叶片前端面63上的凹部64处施加旋转部件f“,从而使叶片34的叶片顶端间隙g中流动的流动f和工作流体主流的区域A 控制负压面57的一侧,抑制主流的能量损失。
    • 6. 发明专利
    • Gas turbine stator vane
    • 气体涡轮定子风扇
    • JP2012233406A
    • 2012-11-29
    • JP2011100340
    • 2011-04-28
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIROHIGUCHI SHINICHINODA MASAMI
    • F01D9/02
    • F01D9/041F01D5/143F05D2240/10F05D2240/80F05D2250/184F05D2250/711F05D2250/712
    • PROBLEM TO BE SOLVED: To provide a gas turbine stator vane for suppressing augmentation of a horseshoe-shaped vortex occurring near a leading edge of the vane and effective for suppressing a secondary flow in a region sandwiched between a suction surface and a pressure surface.SOLUTION: The gas turbine stator vane includes: a vane profile portion 12 having the pressure surface 10b concave chordwise and a suction surface 10a convex chordwise; an outer-circumferential end wall positioned at an outer circumferential side of the vane profile portion 12; and an inner-circumferential end wall positioned at an inner circumferential side of the vane profile portion 12. An outer-circumferential end wall inner surface 10 that is an inner-circumferential surface of the outer-circumferential end wall has an inward convexed shape and an outward convexed shape, at the suction surface side of the vane profile portion 12. A top of the inward convexed shape is positioned near the leading edge 12a of the vane profile portion. A top of the outward convexed shape is positioned near the intermediate position between the leading edge 12a and a trailing edge 12b of the vane profile portion 12.
    • 要解决的问题:提供一种用于抑制在叶片的前缘附近发生的马蹄形涡流增大的燃气轮机定子叶片,并且有效地抑制夹在吸力表面和压力之间的区域中的二次流动 表面。 解决方案:燃气轮机定子叶片包括:叶片轮廓部分12,其具有沿着弦的方向凹入的压力表面10b和弦向的凸缘10a; 位于叶片轮廓部12的外周侧的外周端壁; 以及位于叶片型面部12的内周侧的内周端壁。作为外周端壁的内周面的外周端壁内面10具有向内凸的形状, 向外凸出的形状,位于叶片轮廓部分12的吸力表面侧。向内凸起的顶部位于叶片轮廓部分的前缘12a附近。 向外凸起的形状的顶部位于叶片轮廓部分12的前缘12a和后缘12b之间的中间位置附近。(C)2013,JPO和INPIT
    • 7. 发明专利
    • Axial flow compressor, gas turbine system having the axial flow compressor and method of modifying the axial flow compressor
    • 轴流压缩机,轴流压缩机的气体涡轮机系统及轴流式压缩机的改造方法
    • JP2012062814A
    • 2012-03-29
    • JP2010207448
    • 2010-09-16
    • Hitachi Ltd株式会社日立製作所
    • TAKAHASHI YASUOMEIREN CHIHIROAKIYAMA RYOMIYOSHI ICHIRO
    • F04D29/56F02C3/10F04D19/02F04D29/54
    • F01D25/00F01D5/142F04D29/544F05D2230/50F05D2240/10
    • PROBLEM TO BE SOLVED: To provide an axial flow compressor that improves reliability on an increase in a blade loading on a last-stage stator vane of the axial flow compressor due to a partial load operation of a gas turbine and the like.SOLUTION: An annular flow passage is formed by a rotor to which multiple rotor blade cascades are attached and a casing to which multiple stator vane cascades are attached. Two or more of the stator vane cascades are disposed at the downstream side of a last-stage rotor blade cascade that is the rotor blade cascade disposed at the most downstream side in a flow direction of the annular flow passage. In addition, a blade loading on a first stator vane cascade disposed at the most upstream side is set to be smaller than a blade loading of a second stator vane cascade disposed at the downstream side of the first stator vane cascade by one row, at the stator vane cascade disposed at the downstream side of the last-stage rotor blade cascade.
    • 要解决的问题:提供一种轴流式压缩机,其由于燃气轮机等的部分负载操作而提高轴流式压缩机的最后级定子叶片上的叶片负载的增加的可靠性。 解决方案:一个环形流动通道由一个连接有多个转子叶片级联的转子和一个固定有多个定子叶片叶栅的壳体形成。 定子叶片级联中的两个或更多个设置在最后一级转子叶片级联的下游侧,其是设置在环形流动通道的流动方向最下游侧的转子叶片级联。 此外,设置在最上游侧的第一定子叶片级联上的叶片负载被设定为小于设置在第一定子叶片级联的下游侧的第二定子叶片级联的叶片负载一排, 定子叶片级联设置在最后一级转子叶片级联的下游侧。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Facility having compressor for spraying water on intake air
    • 具有压缩机的设备用于在摄入空气中喷水
    • JP2010053690A
    • 2010-03-11
    • JP2008216099
    • 2008-08-26
    • Hitachi Ltd株式会社日立製作所
    • MIYOSHI ICHIROARAKI HIDEFUMI
    • F01K21/04F02C3/30F02C6/08F02C7/143F02C9/00F04D25/08
    • PROBLEM TO BE SOLVED: To provide a humidification method for compressor intake air with little dependence on the outside air intake temperature, and to provide a facility and method of its operation capable of reducing energy loss in temperature or humidity control of the compressor intake air. SOLUTION: The facility includes a compressor 1 for generating temperature-raised/boosted air by sucking and compressing the air, a first passage for guiding gas, a second passage for guiding water, a first spraying device 8 for spraying by atomizing the water guided by the second passage by using energy of the gas guided by the first passage, a third passage for guiding the water, and a second spray device 9 for atomizing the water by colliding the water guided by the third passage with a solid, and is constituted so that the air sucked in the compressor can be humidified by the first spraying device or the second spraying device, and is provided with a fourth passage for supplying the air extracted from the compressor to the first passage. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供对外部空气进入温度几乎不依赖的压缩机进气的加湿方法,并且提供其能够减少压缩机的温度或湿度控制中的能量损失的设备和方法, 进气。 解决方案:该设备包括:用于通过吸入和压缩空气来产生升温/升压的空气的压缩机1,用于引导气体的第一通道,用于引导水的第二通道,用于喷雾的第一喷洒装置8, 由第二通道引导的水由第一通道引导的气体的能量引导,第三通道用于引导水;以及第二喷射装置9,用于通过使第三通道引导的水与固体碰撞来使水雾化;以及 被构造成使得吸入压缩机的空气可以被第一喷射装置或第二喷射装置加湿,并且设置有用于将从压缩机抽出的空气供给到第一通道的第四通道。 版权所有(C)2010,JPO&INPIT