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1. 发明专利

JP2014025443A Steam turbine and steam turbine stator vane 有权
标题翻译：蒸汽涡轮机和蒸汽涡轮机定子风扇
公开(公告)号：JP2014025443A
公开(公告)日：2014-02-06
申请号：JP2012167902
申请日：2012-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKANO SUSUMU , MIZUMI SHUNSUKE , KUDO TAKESHI , SAKAKIBARA KAZUYA , ISHIBASHI KOJI , MATSUDA MASAKI
IPC分类号： F01D9/02 , F01D25/00 , F01D25/32
CPC分类号： F01D5/28 , F01D5/147 , F01D25/32 , F05D2240/122
摘要： PROBLEM TO BE SOLVED: To provide a stator vane structure for a steam turbine to eliminate a liquid film generated on a stator vane surface to reduce rotor blade erosion caused by collision of water droplets generated from wet steam.SOLUTION: To attain the above-described object, in a steam turbine having a turbine stage including stator vanes 1 and rotor blades 2 provided downstream of the stator vanes in a working fluid flow direction, the stator vane is formed in a hollow vane shape by plastically deforming a metal plate, and a slit 24 is formed by overlaying an airfoil suction side metal plate and an airfoil pressure side metal plate with a gap therebetween in the tail section 8 of the stator vane 1, so that the slit guides liquid droplets stuck on a vane surface into the stator vane.
摘要翻译：要解决的问题：提供一种用于蒸汽轮机的定子叶片结构，以消除在定子叶片表面上产生的液膜，以减少由湿蒸汽产生的水滴碰撞引起的转子叶片侵蚀。解决方案：为了达到上述目的目的是在具有涡轮级的蒸汽轮机中，该涡轮级包括定子叶片1和设置在工作流体流动方向上的定子叶片下游的转子叶片2，定子叶片通过使金属板塑性变形而形成为中空叶片形状，狭缝24通过在定子叶片1的尾部8中覆盖翼型吸入侧金属板和翼型压力侧金属板之间具有间隙而形成，使得狭缝将粘附在叶片表面上的液滴引导到定子叶片。

2. 发明专利

JP2011064171A Turbomachinery and sealing device 审中-公开
标题翻译：涡轮机和密封装置
公开(公告)号：JP2011064171A
公开(公告)日：2011-03-31
申请号：JP2009217125
申请日：2009-09-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKIBARA KAZUYA , NAKAMURA KENJU
IPC分类号： F01D11/08 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide turbomachinery which can suppress variation in operation of a leakage amount of working fluid from between a rotor and a stationary body regardless of an abrasion state or the like of a fin, and a sealing device used in the turbomachinery. SOLUTION: The turbomachinery includes: the rotor 100 having a cover 3 expanding to a radially outside toward a downstream side of a flow direction 12 of the working fluid, on at least a part of an outer circumferential surface; the stationary body 200 covering the outer circumference of the rotor 100; and a sealing device 300 suppressing leakage of the working fluid between the rotor 100 and the stationary body 200. The sealing device 300 in which a counter portion facing the cover 3 of the rotor 100 is formed corresponding to the cover 3, includes: a seal fin 7 constituting a seal portion together with the cover 3; and a feed mechanism 8 provided on an inner circumferential portion of the stationary 200 and moving the seal fin 7 in an axial direction of the rotor 200. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以抑制工作流体从转子和静止体之间的泄漏量的操作变化的涡轮机械，而不管翅片的磨损状态等如何，以及用于涡轮机。涡轮机械包括：转子100，其具有在外周面的至少一部分上朝向工作流体的流动方向12的下游侧向径向外侧扩张的盖3; 覆盖转子100的外周的固定体200; 以及密封装置300，其抑制工作流体在转子100和固定体200之间的泄漏。密封装置300，其中与盖3对应地形成有与转子100的盖3相对的对置部，密封装置300包括：翅片7与盖3一起构成密封部分; 以及设置在固定件200的内周部上并沿着转子200的轴向移动密封翅片7的进给机构8.版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2014040803A Stator blade structure of steam turbine, and steam turbine 有权
标题翻译：蒸汽涡轮机的定子叶片结构和蒸汽涡轮机
公开(公告)号：JP2014040803A
公开(公告)日：2014-03-06
申请号：JP2012183704
申请日：2012-08-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SENOO SHIGEKI , SAKAKIBARA KAZUYA , YODA HIDEO
IPC分类号： F01D9/02 , F01D25/00 , F01D25/32
摘要： PROBLEM TO BE SOLVED: To provide a stator blade structure of a steam turbine capable of reducing the amount of erosion of a rotor vane by separating and recovering a water film attached to a stator blade face, and suppressing lowering of an output due to accompanying steam in accompany with separation and recovery of the water film.SOLUTION: In a structure of a stator blade 13 in which the inside of the stator blade 13 is hollow, a slit 11 is formed on a blade face of the stator blade 13, and a water film attached to the blade face of the stator blade 13 is recovered to the inside of the stator blade 13 from the slit 11, a ratio of a pressure inside of the stator blade 13 and a pressure of the blade face of the stator blade 13 on a position where the slit 11 is formed, is adjusted. For example, a communication pipe 19 is disposed to communicate the inside of the stator blade 13 to an exhaust chamber side, and a boosting mechanism 20 is disposed inside of the communication pipe 19 to adjust the ratio of the pressure inside of the stator blade 13 and the pressure of the blade face of the stator blade 13 on the position where the slit 11 is formed. Further, for example, a distance from a blade rear edge 13TE, of the slit 11 is made various in the height direction of the stator blade 13 to adjust the pressure of the blade face of the stator blade 13 on the position where the slit 11 is formed, in the longitudinal direction of the slit 11.
摘要翻译：要解决的问题：提供一种蒸汽轮机的定子叶片结构，其能够通过分离和回收附接到定子叶片面的水膜来减少转子叶片的侵蚀量，并且抑制由于伴随蒸汽的输出的降低伴随着水膜的分离和回收。解决方案：在定子叶片13的内部为中空的定子叶片13的结构中，在定子叶片13的叶片面上形成有狭缝11，附着于定子叶片13的叶片面的水膜从狭缝11回收到定子叶片13的内部，定子叶片13的内部压力与定子叶片13的叶片面的压力的比在形成狭缝11的位置上进行调整。例如，连通管19设置成将定子叶片13的内部连通到排气室侧，并且升压机构20设置在连通管19的内部，以调节定子叶片13内部的压力比以及在形成狭缝11的位置上的定子叶片13的叶片面的压力。此外，例如，与狭缝11的叶片后缘13TE的距离在定子叶片13的高度方向上各不相同，以将定子叶片13的叶片面的压力调整到狭缝11的位置在狭缝11的长度方向上形成。

4. 发明专利

JP2011137413A Steam turbine 审中-公开
标题翻译：汽轮机
公开(公告)号：JP2011137413A
公开(公告)日：2011-07-14
申请号：JP2009297799
申请日：2009-12-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKIBARA KAZUYA , YODA HIDEO
IPC分类号： F01D5/22 , F01D5/14 , F01D9/02
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine for reducing the occurrence of random stress in a low-flow state while holding work efficiency if at all possible. SOLUTION: The steam turbine includes a plurality of moving blades 2 mounted on a rotor, and a plurality of stationary blades 1. The steam turbine further includes partition plates 6, 7 bridged between the adjacent moving blades 2 or stationary blades 1 in a rotor peripheral direction for partitioning steam flow paths in a rotor radial direction. The plurality of partition plates 6, 7 are installed at spaces in the rotor radial direction so as to be located in a range from a position equivalent to a half of a blade length to the side of a rotating shaft 25. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种蒸汽涡轮机，用于在保持工作效率的同时，尽可能地保持低流动状态下的随机应力的发生。蒸汽涡轮机包括安装在转子上的多个活动叶片2和多个固定叶片1.蒸汽轮机还包括桥接在相邻的活动叶片2或固定叶片1之间的分隔板6,7，用于分配转子径向的蒸汽流路的转子周向方向。多个分隔板6,7安装在转子径向的空间处，以便位于等于叶片长度的一半到旋转轴25的一侧的范围内。版权所有：（C）2011，JPO＆INPIT

5. 发明专利

JP2014070514A Turbomachine with thrust bearing device 审中-公开
标题翻译：涡轮轴承带轴承装置
公开(公告)号：JP2014070514A
公开(公告)日：2014-04-21
申请号：JP2012215462
申请日：2012-09-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKIBARA KAZUYA , NAKAMURA KENJU
IPC分类号： F01D25/16 , F02C7/06 , F04D29/046 , F16C17/04 , F16C33/02
摘要： PROBLEM TO BE SOLVED: To provide a thrust bearing structure having a function for improving a stability against a rotor vibration while supporting a thrust force in a thrust bearing.SOLUTION: The present invention relates to a turbomachine comprising a rotor 1 formed with a thrust collar part 4 and a thrust bearing device 2 for rotatably supporting the rotor 1 in which a sliding surface 3 of the thrust bearing device and a contact surface 5 of the thrust collar part 4 oppositely facing against the sliding surface have a gradient toward a rotor shaft.
摘要翻译：要解决的问题：提供一种推力轴承结构，其具有改善对转子振动的稳定性的功能，同时支撑推力轴承中的推力。解决方案：涡轮机技术领域本发明涉及一种涡轮机，其包括形成有止推环第四部分和推力轴承装置2，用于可旋转地支撑转子1，推力轴承装置的滑动表面3和止推环部分4的与滑动表面相对的接触表面5具有朝向转子轴的梯度。

6. 发明专利

JP2011252468A Turbine moving blade 有权
标题翻译：涡轮机叶片
公开(公告)号：JP2011252468A
公开(公告)日：2011-12-15
申请号：JP2010128410
申请日：2010-06-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ASAI KUNIO , KUDO TAKESHI , YODA HIDEO , SAKAKIBARA KAZUYA
IPC分类号： F01D5/16 , F01D5/10 , F01D5/30 , F01D25/00 , F01D25/06 , F01D25/26
CPC分类号： F01D5/22
摘要： PROBLEM TO BE SOLVED: To provide a turbine moving blade for inserting a damper pin into a side face of a platform and further reducing stress concentration of a pin hole groove of the damper pin for high damping and vibration stress reduction at a blade implanted part.SOLUTION: Groove processing is applied for passing the damper pin 4 through a boundary between adjacent blades at the side face of the platform 3. The damper pin 4 is inserted into the groove to make the depth in the circumferential direction of the groove provided at both the back side and the belly side of the side face of the platform 3 smaller than a half pin diameter of the damper pin. Consequently, the stress concentration of the pin hole groove is reduced.

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