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1. 发明专利

JP2008057412A Hydraulic machine and stay ring for hydraulic machine 有权
标题翻译：液压机械液压机械和液压机械
公开(公告)号：JP2008057412A
公开(公告)日：2008-03-13
申请号：JP2006234846
申请日：2006-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARISAWA SATOSHI , TANI KIYOTO
IPC分类号： F03B3/18
CPC分类号： Y02E10/223
摘要： PROBLEM TO BE SOLVED: To improve efficiency by mitigating quick contraction and quick expansion of a channel and reducing turbulence of flow in the channel comprising an upper stay ring and a lower stay ring opposing to a plurality of stay vanes and having nonparallel meridian plane shapes of the channel by the upper stay ring and the lower stay ring.
SOLUTION: A flow guides 12a or 12b is provided on the upper stay ring 3, the lower stay ring 5 or both of those between a part of stay vanes to mitigate quick contraction and quick expansion of a channel in the channel comprising the upper stay ring 3 and the lower stay ring 4 opposing to the plurality of stay vanes 2 and having the nonparallel meridian plane shapes of the channel by the upper stay ring 3 and the lower stay ring 4.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过减轻通道的快速收缩和快速膨胀并减少通道中的流动紊流来提高效率，其包括与多个滞叶相对的上止动环和下止动环，并且具有不平行子午线通过上支撑环和下支撑环的通道的平面形状。解决方案：流动引导件12a或12b设置在上支撑环3，下支撑环5或两者之间的一部分支撑叶片之间，以减轻快速收缩和通道中的通道的快速膨胀，该通道包括上支撑环3和下支撑环4相对于多个支撑叶片2并且具有通过上支撑环3和下支撑环4的通道的不平行子午线平面形状。版权所有（C）2008 ，JPO＆INPIT

2. 发明专利

JP2004308589A Runner vane operating device for movable blade hydraulic machine 审中-公开
标题翻译：用于可动叶片液压机的跑道式操作装置
公开(公告)号：JP2004308589A
公开(公告)日：2004-11-04
申请号：JP2003104765
申请日：2003-04-09
申请人： Hitachi Engineering & Services Co Ltd , Hitachi Ltd , 株式会社日立エンジニアリングサービス , 株式会社日立製作所
发明人： KAWASAKI YOSHIHISA , NARISAWA SATOSHI , TOMOBE RYOICHI , OTSUKA YOSHIMOTO
IPC分类号： F03B3/14
CPC分类号： Y02E10/223
摘要： PROBLEM TO BE SOLVED: To provide a runner vane operation device capable of installing a booster mechanism without dividing a rotating shaft of a drive device by devising a structure of the runner vane operation device for effectively using a space in a runner boss.
SOLUTION: This device is provided with a runner blade 4 provided in the rotating shaft 2 of a movable blade hydraulic machine and connected to and reciprocated in an axial direction by a drive device and rotating in a predetermined angles in relation to an operation rod 1. An operation mechanism converting reciprocating motion of the operation rod 1 to rotation of the runner blade 4 constructs a mechanical booster mechanism composed of a link mechanism and a lever mechanism and is installed in the runner boss 3.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过设计用于有效地使用转子凸台中的空间的流道叶片操作装置的结构来分配驱动装置的旋转轴来安装增压机构的流道叶片操作装置。解决方案：该装置设置有设置在可动叶片液压机的旋转轴2中的流道叶片4，其通过驱动装置在轴向方向上相对于操作而以预定角度相对并且沿轴向往复运动将操作杆1的往复运动转换成转轮叶片4的旋转的操作机构构成由连杆机构和杠杆机构构成的机械助力机构，并安装在转轮凸台3中。 C）2005，JPO＆NCIPI

3. 发明专利

JP2009041482A Hydraulic machine 审中-公开
标题翻译：液压机
公开(公告)号：JP2009041482A
公开(公告)日：2009-02-26
申请号：JP2007208392
申请日：2007-08-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OMURA YOSHIMI , ITO TAKESHI , NARISAWA SATOSHI
IPC分类号： F03B3/18 , F03B11/02
CPC分类号： Y02E10/223 , Y02E10/226
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic machine not susceptible to breakage or dropping off caused by a force received by fluid and having a straightening member excellent in ease of mounting work.
SOLUTION: The straightening member 9 of the hydraulic machine has an arc-like cross-sectional shape, and is fixed to an outer periphery of a stay ring 4, so that a projection part of the arc directs on a flow passage 3a side of the casing 3. A support member 11 is fixed to the outer periphery of the stay ring 4, and the straightening member 9 is fixed to the support member 11. In this way, since the straightening member 9 has structure held by the stay ring 4 not connected with the casing 3 and does not transmits the force received by the straightening member 9 to the casing 3, the breakage of the casing 3 or the dropping off of the straightening member 9 is suppressed, and the installation is performed only by relatively simple process, that is, welding.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种液体机械，其不易受到由流体接收的力引起的断裂或脱落，并且具有优良的安装作业的良好的矫直构件。解决方案：液压机的矫正构件9具有弧形横截面形状，并且固定在支撑环4的外周，使得电弧的突出部分指向流动通道3a 支撑构件11固定到支撑环4的外周，并且矫直构件9固定到支撑构件11.这样，由于矫直构件9具有由搁置构成的结构环4没有与壳体3连接，并且不将由矫直构件9接收的力传递到壳体3，因此能够抑制壳体3的破损或矫直构件9的脱落，并且仅通过工艺比较简单，就是焊接。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005172076A Lip seal and water wheel 有权
标题翻译： LIP密封和水轮
公开(公告)号：JP2005172076A
公开(公告)日：2005-06-30
申请号：JP2003411161
申请日：2003-12-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARISAWA SATOSHI , SUZUKI HIROYUKI , AIZAWA KOJI
IPC分类号： F03B11/00 , F16J15/32
CPC分类号： Y02E10/226
摘要： PROBLEM TO BE SOLVED: To provide a lip seal displaying stable sliding property even under a condition of a small water leakage, without requiring maintenance and with unchanging amount of small water leakage even when used over a long period of time, and which is usable with a water wheel. SOLUTION: The lip seal is equipped with a sleeve fixed to a main shaft, a packing arranged to surround the outer periphery of the sleeve, and a metallic ring attached thereto supporting the packing, and a packing case housing the above. The lip seal is structured to be provided with one or more circumferential grooves 6 on the packing side which contactingly slides with the sleeve outer periphery, and a plurality of longitudinal grooves 7a, 7b communicating with the circumferential groove 6 and the sealed side. Sealing liquid is introduced into the groove parts and pressure distribution between the circumferential groove 6 and the sealed side is substantially uniformized with the sealing pressure. Therefor, contacting pressure on the sliding face is reduced and stable sliding property can be obtained. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在漏水量小的情况下也能够提供具有稳定的滑动性的唇形密封，即使长时间使用，也不需要维护和不变量的小的漏水量，可用于水轮。解决方案：唇形密封件配备有固定到主轴的套筒，围绕套筒外周的衬垫以及附着于其上的支撑衬垫的金属环以及容纳以上的包装盒。唇形密封件构造成在密封侧设置有与套筒外周接触滑动的一个或多个周向槽6，以及与周向槽6和密封侧连通的多个纵向槽7a，7b。密封液被引入槽部，周向槽6与密封侧之间的压力分布基本上与密封压力一致。因此，滑动面上的接触压力降低，并且可以获得稳定的滑动性能。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2010196546A Divided runner 有权
标题翻译：分身跑步
公开(公告)号：JP2010196546A
公开(公告)日：2010-09-09
申请号：JP2009040826
申请日：2009-02-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA TAKAYUKI , NARISAWA SATOSHI
IPC分类号： F03B3/12 , F03B3/02 , F03B3/10 , F03B11/00
CPC分类号： Y02E10/223 , Y02E10/226
摘要： PROBLEM TO BE SOLVED: To provide a runner employing a divided runner fastening method not requiring installation of a cover plate. SOLUTION: This divided runners 1A, 1B are formed by dividing the runner into two or more by a vertical plane passing through the center of the runner of a water wheel or a pump water wheel. Each of the divided runners 1A, 1B includes: a divided joint surface 5 oppositely facing the other divided runner when integrally fastened; fastening grooves 6, 7, 8 formed in the divided joint surface 5 on the side of a crown 2 and on the side of a band 3; and a fastening member fitted to the fastening grooves 6, 7, 8 and having a hooking 13 parallel to the divided joint surface 5. The hook 13 fastens the fastening grooves 6, 7, 8, thereby the divided runners 1A, 1B are fastened to each other. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用不需要安装盖板的分割流道紧固方法的流道。解决方案：通过将流道划分为两个或更多个通过水轮或泵水轮的流道的中心的垂直平面来形成该分开的滑动件1A，1B。每个分开的滑动件1A，1B包括：一体地紧固时相对于另一个分开的流道的分开的接合表面5; 形成在分割接头表面5的冠部2的侧面和带3侧的紧固槽6,7,8; 以及紧固构件，其安装在紧固槽6,7,8上，并且具有平行于分开的接合表面5的钩状件13.钩13紧固紧固槽6,7,8，从而将分开的滑动件1A，1B紧固到彼此。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2011122511A Main shaft water sealing apparatus 有权
标题翻译：主轴水封装置
公开(公告)号：JP2011122511A
公开(公告)日：2011-06-23
申请号：JP2009280656
申请日：2009-12-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MURAMATSU WATARU , NIIKURA KAZUO , NARISAWA SATOSHI , NOMOTO SATORU
IPC分类号： F03B11/00 , F03B3/02 , F03B15/18
CPC分类号： Y02E10/223 , Y02E10/226
摘要： PROBLEM TO BE SOLVED: To provide a main shaft water sealing apparatus capable of restraining a water leakage from a runner back pressure chamber with a simple structure not only during the operation of a water turbine but at the start and stop and during a test run.
SOLUTION: The main shaft water sealing apparatus includes a plurality of seal parts 4 installed at a space in the axial direction of a main shaft 2 at a portion where the main shaft 2 penetrates an upper cover 3; an injection port 21 provided facing the main shaft between the plurality of seal parts; a water intake 19 opened to the runner back pressure chamber 5 where water pressure rises with the rotation of a runner; a water supply pipe 7 connecting the water intake to the injection port; and a water supply tank 9 installed at an intermediate part of the water supply pipe. The water intake is installed in a position where pressure that can pump up water in the runner back pressure chamber during the operation of the water turbine is generated in the runner back pressure chamber, and the water supply tank is installed in a position not lower than the height required to inject, from the injection port by gravity, water of minimum pressure required for sealing the seal part during the operation of the water turbine.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种主轴水封装置，其不仅在水轮机的运行期间，而且在开始和停止期间以及在一个测试运行。解决方案：主轴水封装置包括多个密封部分4，其安装在主轴2的轴向方向上的主轴2穿过上盖3的部分处; 在多个密封部之间面向主轴设置的注入口21; 水流入口19，其通向转轮背压室5，水压随转轮旋转而升高; 将进水口与喷射口连接的供水管7; 以及安装在供水管的中间部分的供水槽9。进水口安装在流道背压室中产生在水轮机运转期间能够在流道背压室中泵送水的压力的位置，并且将供水箱安装在不低于通过重力从注射口喷射在水轮机的操作期间密封密封部分所需的最小压力所需的高度。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2004270659A Shaft seal device and water turbine using the same 有权
公开(公告)号：JP2004270659A
公开(公告)日：2004-09-30
申请号：JP2003066377
申请日：2003-03-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AIZAWA KOJI , OSHIMA KATSUHIRO , NARISAWA SATOSHI
IPC分类号： F03B11/00 , F03B3/10
CPC分类号： Y02E10/223 , Y02E10/226
摘要： PROBLEM TO BE SOLVED: To provide a shaft seal device capable of enhancing followability of a seal case to vertical motion of a rotary shaft of a runner, and ensuring high reliability for a long time, and a water turbine using the same. SOLUTION: The shaft seal device comprises a casing 1, a rotary ring 2 fitted to a rotary shaft 200 of a water turbine, a seal case 3 located in a space between the casing 1 and the rotary shaft 200, an O-ring 5 to seal a space between the seal case 3 and the casing 1, a seal ring 6 to seal a space between the seal case 3 and the rotary ring 2, and an indirect water supply means leading water supplied from an external water supply means to a seal surface S at the seal ring 6 in which a water supply passage to the seal surface S forms an intermittent part between a water supply hole 17 and a water storage part 18. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JPH11141449A GUIDE VANE OF PUMP HYDRAULIC TURBINE AND ITS MANUFACTURE 失效
公开(公告)号：JPH11141449A
公开(公告)日：1999-05-25
申请号：JP30525497
申请日：1997-11-07
申请人： HITACHI LTD
发明人： TANAKA YUJI , MIURA SEIJI , YOSHIOKA SENJI , HARAGUCHI YUKIKADO , NARISAWA SATOSHI
IPC分类号： F03B3/18
摘要： PROBLEM TO BE SOLVED: To prevent the interference between a stay vane and a guide vane in an operating point having a large flow rate by rotating and moving the blade of the guide vane of a pump hydraulic turbine. SOLUTION: An axial center of a shaft 2 is provided so as to be on the outside of the form of a blade 1, and when a guide vane is rotated according to operating state, the blade 1 is not only rotated but also moved. Thus, the space L between the stay vane-side blade end of the blade 1 and the guide vane-side blade end of a stay vane 4 is minimized. For the flowing state at this time, the flowing-out direction of the water flow from the blade 1 is moved since the blade 1 is moved in the guide vane arrangement direction, and the slip stream of the guide vane never reaches the negative pressure surface 4S of the stay vane 4. Thus, since the slip stream of the guide vane is never interfered with the boundary layer of the negative pressure surface 4S, the pump efficiency can be improved without increasing the loss, and a high pump efficiency can be kept even in a large flow rate.

9. 发明专利

JP2001271736A PUMP TURBINE OPERATION CONTROL SYSTEM 失效
公开(公告)号：JP2001271736A
公开(公告)日：2001-10-05
申请号：JP2000090694
申请日：2000-03-27
申请人： HITACHI LTD , CHUBU ELECTRIC POWER
发明人： NARISAWA SATOSHI , YOSHIDA MASAHIRO , MAKINO MASAMICHI , TANAKA MASAHIRO
IPC分类号： F03B15/02 , H02P9/04
摘要： PROBLEM TO BE SOLVED: To reduce an electric power impact on an electric power system concerning switching from pumping operation to power generating operation at a pumped storage power plant or the stop of pumping operation. SOLUTION: At the pumped storage power plant provided with two pump turbines connected to a variable speed generator-motor, one pump turbine is in pumping operation mode, and the other pump turbine is in power generation operation mode. There is operation control in which two operation modes exist simultaneously to control the operation of each variable speed generator-motor in such a way that total input and output power of two variable speed generator-motors is continuously changed for time or total input and output power is in an allowable scope of power fluctuation that the power system has even if the total input and output power is discontinuous for time.

10. 发明专利

JP2000205101A REVERSIBLE PUMP-TURBINE 失效
公开(公告)号：JP2000205101A
公开(公告)日：2000-07-25
申请号：JP618599
申请日：1999-01-13
申请人： HITACHI LTD , KANSAI ELECTRIC POWER CO
发明人： NARISAWA SATOSHI , SHINMEI KATSUMASA , ITO TAKESHI , NIIKURA KAZUO , YASHIKI TATSURO , FURUTA HIDEO , NISHIO TORU , NAKAGAWA HIROTO , KAKIUCHI TAKASHI
IPC分类号： F03B3/12
摘要： PROBLEM TO BE SOLVED: To provide a reversible pump turbine capable of widening the water head varying range without changing the physical constitution or contour of a runner or causing deterioration of the cavitation characteristics despite varying range of pumping operation. SOLUTION: A pump turbine includes a runner 2 having longer blades 101 and shorter blades 102 in alternate arrangement such that they are at a specified spacing in the circumferential direction, wherein the end position of each shorter blade 102 on the side with water turbine inlet is position between a cylindrical surface 2a formed by the water turbine inlet side of one longer blade 101 and a surface 2b as the minimum open are of the water turbine inlet part formed by each longer blade.

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