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1. 发明专利

JPS62237172A SEAL RING 失效
公开(公告)号：JPS62237172A
公开(公告)日：1987-10-17
申请号：JP7813286
申请日：1986-04-07
申请人： KANSAI ELECTRIC POWER CO , HITACHI LTD
发明人： SUGIMOTO OSAMU , HOTTA TEIJI , ARAI KATSUTOSHI , AIZAWA KOJI , KAWAIKE KAZUHIKO , INOUE HISAO
IPC分类号： F16J15/34
摘要： PURPOSE:To enhance the sealing ability of a seal ring, by disposing a plurality of seal ring pieces in a circular groove formed in a casing so as to form them in a ring-like shape, and by securing the seal ring pieces to the casing with a bonding agent. CONSTITUTION:A sealing ring 2 has four split ring pieces 2' which are disposed in a circular groove formed in a bisplit type casing 8 and which are secured to the casing 8 with a bonding agent 9. Gaps h1, h2 are formed between the bonding section of the casing 8 and the seal ring piece 2', and the bonding agent 9 is filled in the gaps 9 so that the seal ring pieces 2' may be secured to the casing 8. Accordingly, the sealing end face of the sealing ring may be previously formed like an integral ring form, thereby it may be previously formed like an integral ring form, thereby it is possible to enhance the sealing ability of the seal ring.

2. 发明专利

JPS5510006A WATERRSEAL DEVICE FOR HYDRAULIC MACHINE 失效
公开(公告)号：JPS5510006A
公开(公告)日：1980-01-24
申请号：JP8099678
申请日：1978-07-05
申请人： HITACHI LTD
发明人： SUZUKI MUTSUO , INOUE HISAO , SHINOHARA MORIMICHI , TAKASE MITSUO
IPC分类号： F03B11/00 , F16J15/447
摘要： PURPOSE:To remarkably improve a reliability of the water-seal part itself, as well as to simplify a work of inspecting the water-seal part and to widely shorten a length of labor time required for the work of inspection and maintenance, with a process of inspection only for the water-seal part made enough for requirement, by means of constructing a fine clearance to a minimum for the place to be measured. CONSTITUTION:A clearance G5 of the second stage water-seal part is set to a width slightly wider than a clearance G4 of the first stage water-seal part. The amount of leak from such clearance as in the above, if assumed L for a length of the water-seal part, is proportional to the cube of the clearance and inversely proportional to the length L. The clearance of the second stage water-seal part is to be generally set to about G5=(G4 + 0.1mm). In case of increasing a number of stages of the water- seal part likely as third, fourth, and so on, those of the clearance of the water-seal part will be made equal to the clearance G5 of the second stage water-seal part. In such way, a construction of the clearance G4 of the first stage water-seal part, of the place to be measured, to minimum amount makes the work of inspection and surveillance only required for this part, capable of eliminating a necessity of inspecting other water-seal part.

3. 发明专利

JPS5274738A CHARGING WATER METHOD OF PENSTROCK AND UPPER STORAGE POND 失效
公开(公告)号：JPS5274738A
公开(公告)日：1977-06-23
申请号：JP15050675
申请日：1975-12-19
申请人： HITACHI LTD
发明人： INOUE HISAO , HITOMI ICHIROU
IPC分类号： F03B15/04 , F03B3/00 , F03B15/14
摘要： PURPOSE:To perform charging water in a penstock and an upper storage pond stably by using a pump water wheel without using an initial charging water pump.

4. 发明专利

JPS62180174A SHAFT SEALING DEVICE 失效
公开(公告)号：JPS62180174A
公开(公告)日：1987-08-07
申请号：JP2014286
申请日：1986-02-03
申请人： KANSAI ELECTRIC POWER CO , HITACHI LTD
发明人： SUGIMOTO OSAMU , HOTTA TEIJI , AIZAWA KOJI , ARAI KATSUTOSHI , KAWAIKE KAZUHIKO , HITOMI ICHIRO , INOUE HISAO
IPC分类号： F16J15/34
摘要： PURPOSE:To obtain a shaft sealing device of good water sealing performance by forming a seal ring in slide contact with the flange of a rotary shaft from an elastic or a flexible member, and fitting a support member to the inside of the seal ring for supporting the weight of a seal case itself. CONSTITUTION:A seal ring in slide contact with the flange 2 of a rotary shaft 1 is formed from a flexible member 3A and the inside thereof is fitted with a support member 2a for supporting the weight of a seal case 5 itself. According to the aforesaid constitution, the flexible member 3A is made in close contact with the slide surface of the flange 2 and stable water sealing performance becomes available regardless of seal surface precision. Also, the weight of the seal case 5 itself is supported by the support member 2a. Consequently, seal surface pressure can be set to a predetermined value and stable water sealing performance becomes available for a long time.

5. 发明专利

JPS58214677A Valve water turbine 失效
标题翻译：阀门水轮机
公开(公告)号：JPS58214677A
公开(公告)日：1983-12-13
申请号：JP9770882
申请日：1982-06-09
申请人： Hitachi Ltd
发明人： SUZUKI MUTSUO , INOUE HISAO , MORIGUCHI KAZUO , OOSHIMA KATSUHIRO
IPC分类号： F03B3/04 , F03B11/02
CPC分类号： F03B11/02 , Y02E10/223 , Y02E10/226
摘要： PURPOSE:To improve reliability of the strength of concrete, by constituting an outer casing in the vicinity of stay vane mounting parts through a thick plate and relaxing peak stress of the concrete. CONSTITUTION:A plate thickness of an outer casing 5 in the vicinity of the mounting part of stay vanes 4 is formed larger than the plate thickness of the outer casing 5 in the other part. Then the plate thickness of said outer casing 5 is formed larger than a plate thickness of the stay vane, and external force transmitted from the stay vane 4 is relaaxed in a stage where said external force is transmitted to the outer casing 5, while concentration of stress in concrete 10 can be averaged. Consequently, the concentration of stress is eliminated and reliability in the strength of concrete is improved.
摘要翻译：目的：提高混凝土强度的可靠性，通过厚板在悬挂叶片安装部件附近构成外壳，缓解混凝土的峰值应力。构成：在另一部分中，在支撑叶片4的安装部分附近的外壳5的板厚大于外壳5的板厚。然后，所述外壳5的板厚形成为大于支撑板的板厚，并且在所述外力传递到外壳5的阶段中，与从动叶片4传递的外力相关联，同时混凝土10中的应力可以平均。因此，消除了应力集中，提高了混凝土强度的可靠性。

6. 发明专利

JPS57126564A Elevator type power generating unit 失效
标题翻译：电梯式发电机组
公开(公告)号：JPS57126564A
公开(公告)日：1982-08-06
申请号：JP1131081
申请日：1981-01-27
申请人： Hitachi Ltd , Hitachi Zosen Corp , Tohoku Electric Power Co Inc
发明人： YOSHIDA HIROSHI , ASANO HIROSHI , INOUE HISAO , SATOU JIYOUSUKE , MAKIHATA TOSHIAKI , TAKAKURA HIROO
IPC分类号： F03B3/04 , F03B13/08
CPC分类号： F03B13/08 , Y02E10/22 , Y02E10/223
摘要： PURPOSE:To prevent jet flow to a hydraulic turbine generator upon water discharge from the lower end of the generator and to damp vibration generated from the main body of the generator, by incorporating the frame of the generator integrally with a main gate and by providing rectifying plates in the lower portion of the frame and as well providing an auxiliary gate above the main gate. CONSTITUTION:The installation of the main body of a generator 6 is made by setting struts 8 suspended from the generator 6 on a bed 7 disposed in a frame 5. A draft tube 11 is attached to a main gate 13 with which the frame 5 is integrally incorporated. A water wheel shutting-off gate 15 having communication holes 14 is arranged in the main gate 13. An auxliliary gate 17 capable of rising and falling is mounted to the top end of the main gate 13 through a shaft 16, and is so constructed that the overflowing may be made. Rectifying plates 18 are provided in the lower portion of the frame, slanting to the downstream side thereof.
摘要翻译：目的：为了防止从发电机的下端排水时向液压涡轮发电机喷射流，并且通过将发电机的框架与主闸整体并入，并且通过提供整流来防止发电机主体产生的振动在框架的下部设置板，并且在主闸门上方设置辅助闸门。构成：发电机6的主体的安装通过将布置在发电机6上的支柱8设置在设置在框架5中的床7上而制成。引流管11安装在主闸板13上，框架5与主闸板整体并入。具有连通孔14的水轮关闭门15布置在主门13中。能够上升和下降的辅助门17通过轴16安装到主门13的顶端，并且被构造成使得可能会溢出。整流板18设置在框架的下部，倾斜到其下游侧。

7. 发明专利

JPS5683574A PRESSURE OIL FEEDING SYSTEM FOR MOVABLE BLADE WATER TURBINE 失效
公开(公告)号：JPS5683574A
公开(公告)日：1981-07-08
申请号：JP15916379
申请日：1979-12-10
申请人： HITACHI LTD
发明人： NAKANO KENROU , INOUE HISAO , IWAKI FUMINORI
IPC分类号： F03B11/00 , F03B15/04
摘要： PURPOSE:To operate a movable blade water turbine in a safe and reliable manner, by connecting a by-pass pipe having an oil regulating valve at a portion of an oil passage connecting a pressure distrubuting valve. CONSTITUTION:A by-pass pipe 23 having an oil regulating valve 24 is connected to a portion of an oil passage connecting a pressure distrubuting valve 1. With such an arrangement, it is enabled to supplement such an amount of oil equivalent to the amount of pressure oil liaked from a sealing packing 7 with the pressure distributing valve 1 being kept at its neutral position and thus to prevent mixing of air into the pressure oil. Therefore, a movable blade water turbine can be operated in a safe and reliable manner.

8. 发明专利

JPS55105014A SAFETY DEVICE FOR DRAINER WITHIN HYDRAULIC POWER GENERATION PLANT 失效
公开(公告)号：JPS55105014A
公开(公告)日：1980-08-12
申请号：JP1376979
申请日：1979-02-07
申请人： HITACHI LTD
发明人： OKADA MASAYASU , INOUE HISAO
IPC分类号： E02B9/00
摘要： PURPOSE:To prevent water infiltration into the underground power generation plant due to leakage at the check valve by checking reverse current with an automatic valve adapted to be closed by the generated signal produced whenever such current occurs in the drain pipe in the safety device of the drainer within the plant. CONSTITUTION:Water in a drain pit 3 within the power generation plant is drained into the flood way through a discharge pipe 10 by means of a drain pump 5, which is controlled with a water level relay 9. A check valve 7 is provided in the course of the discharge pipe 10 to check any reverse current to the drain pit 3 from the flood way 2. In addition, whenever a leakage occurs from the check valve 7, a reverse current detector 15 provided between the drain pump 5 and the check valve 7 detects the reverse current from the flood way 2 and the signal activates a valve motor 14 to close an automatic valve 13. Thus, the reverse current from the discharge passage 2 is interrupted.

9. 发明专利

JPS5416042A CONSTRUCTION TO INSTALL RUNNER LINER BOLT 失效
公开(公告)号：JPS5416042A
公开(公告)日：1979-02-06
申请号：JP7991577
申请日：1977-07-06
申请人： HITACHI LTD
发明人： OKADA MASAYASU , FUJII TSUYOSHI , INOUE HISAO
IPC分类号： F03B3/12 , F03B11/00
摘要： PURPOSE:To prevent producing the bending stress in the runner liner bolt, by enebling to move relatively and freely bolt and runner liner which is at right angles to the axis of thebolt which installes runner and runner liner.

10. 发明专利

JPS5360438A EXHAUST METHOD IN THE CASE OF THE STARTING OF PUMP AND ITS EXHAUST DEVICE 失效
公开(公告)号：JPS5360438A
公开(公告)日：1978-05-31
申请号：JP13540776
申请日：1976-11-12
申请人： HITACHI LTD
发明人： OKADA MASAYASU , NAKANO KENROU , IWAKI FUMINORI , INOUE HISAO
IPC分类号： F03B3/10 , F03B11/00
摘要： PURPOSE:To make exhaust in the case of starting easy, by setting a special drainage pipe to the part between a runner vane and a guide vane under atmospheric press. while fitting a special drainage valve to the special drainage pipe.

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