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1. 发明专利

JPS5614812A METHOD AND APPARATUS FOR CONTROLLING OPERATION OF LOWWBOILING MEDIUM UTILIZING POWER PLANT 失效
公开(公告)号：JPS5614812A
公开(公告)日：1981-02-13
申请号：JP8814979
申请日：1979-07-13
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： IWAKI KIYOTA , NAKAKOSHI TOSHIO , TSUKAHARA SATOSHI , TAMURA ZENSUKE , SAKAGUCHI HARUICHIROU , YAMAZAKI HARUYUKI , MISHIRO ISAO
IPC分类号： F01K25/10
摘要： PURPOSE:To attain a high thermal efficiency of a power plant in stable manner independently of the change in the quantity of input heat, by detecting the level of condensate in a condenser for condensing vapor after use for driving turbine, and controlling the amount of condensate to be supplied to a direct heat exchanger on the basis of the detected level of condensate in the condenser. CONSTITUTION:In the low-boiling medium utilizing power plant shown in the drawing, high-temperature fluid 3 heated in a heater (not shown) is carried into direct heat exchanger 4, in which it exchanges heat with low-temperature fluid 6 of low-boiling medium and vaporizes the same. By driving turbine 7 by the vapor of low-boiling medium, power is generated from generator 8. Vapor discharged from turbine 7 is condensed in codenser 9 and then carried back to heat exchanger 4 via pump 11 and flow control valve 12. Here, a detector 14 for detecting the level of condensate is provided in condenser 9. Output of the detectot 14 is compared with a set level of level setter 21 in means 22 for controlling the flow rate of low-temperature fluid, and flow control valve 12 is controlled on the basis of the difference of this comparison.

2. 发明专利

JP2014009681A Seal structure of rotary machine, and rotary machine 有权
标题翻译：旋转机和旋转机的密封结构
公开(公告)号：JP2014009681A
公开(公告)日：2014-01-20
申请号：JP2012149415
申请日：2012-07-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARITA KENJIRO , YAMAZAKI HARUYUKI , KUDO TAKESHI , MURATA KENICHI , SEGAWA KIYOSHI
IPC分类号： F01D11/02 , F01D11/08 , F02C7/28 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a seal structure of a rotary machine capable of stably moving seal fins or seal fin opposing portions in the radial direction.SOLUTION: In the seal structure of the rotary machine in which the seal fins or the seal fin opposing portions divided in the circumferential direction are made radially movable according to an operating condition of the rotary machine by utilizing a working fluid pressure and spring force of the rotary machine, a holder into which a working fluid is supplied, and which holds a seal base provided with the seal fins or the seal fin opposing portions, is disposed at a fixing portion side of the rotary machine, an elastic body extended in the circumferential direction, and constituted to increase contact lengths in the circumferential direction, with the holder and the seal base when it is pressed, is disposed between the holder and the seal base, and a holding portion of the elastic body extended in the circumferential direction, is disposed on the holder or the seal base.
摘要翻译：要解决的问题：提供一种能够稳定地移动密封翅片或径向密封翅片相对部分的旋转机器的密封结构。解决方案：在旋转机器的密封结构中，其中密封翅片或密封翅片相对通过利用旋转机械的工作流体压力和弹簧力，沿着圆周方向分割的部分可以根据旋转机器的操作状态进行径向移动，提供工作流体的保持器，并且保持提供的密封基座密封翅片或密封翅片相对部分设置在旋转机械的固定部分侧，弹性体沿圆周方向延伸，并且构成为增加沿圆周方向的接触长度，保持器和密封基座当其被按压时，设置在保持器和密封基座之间，并且弹性体的保持部分在圆周方向上延伸，i 设置在支架或密封基座上。

3. 发明专利

JP2013148152A Sealing structure for rotation machine and rotation machine 审中-公开
标题翻译：旋转机和旋转机械的密封结构
公开(公告)号：JP2013148152A
公开(公告)日：2013-08-01
申请号：JP2012008727
申请日：2012-01-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARITA KENJIRO , YAMAZAKI HARUYUKI , KUDO TAKESHI , MURATA KENICHI
IPC分类号： F16J15/447 , F01D11/04 , F01D11/10 , F01D25/00 , F02C7/28 , F16J15/54
摘要： PROBLEM TO BE SOLVED: To allow a plurality of division seal fins provided a fixed part or a plurality of division seal fin facing parts to move in a radial direction through interlock and synchronization in normal time, and to prevent a fixed part side and a rotation part side from being excessively damaged by reducing impact generated when the rotation part side rapidly contacts with the fixed part side.SOLUTION: As an example, an elastic member such as a flat spring 6, which applies a force for opening a circumferential division surfaces of a seal substrate plate 3c1 that is a division seal fin facing part provided in a fixed part such as a nozzle diaphragm inner wheel side 3a on a circumferential division surface, is installed so that its position is fixed on one side of the facing circumferential division surface.
摘要翻译：要解决的问题：为了允许设置有固定部分或多个分隔密封翅片的部件的多个分隔密封翅片在正常时间通过互锁和同步沿径向方向移动，并且防止固定部分侧和旋转通过减小当旋转部分侧与固定部分侧快速接触时产生的冲击，部分侧面受到过度损伤。解决方案：作为示例，弹性构件例如平板弹簧6，其施加用于打开圆周分割表面的力作为设置在周向分割面上的喷嘴隔膜内轮侧3a的固定部分中的分隔密封翅片对置部的密封基板3c1安装成使其位置固定在相对的周向分割面的一侧。

4. 发明专利

JP2011117455A Seal structure of steam turbine 有权
标题翻译：蒸汽涡轮机密封结构
公开(公告)号：JP2011117455A
公开(公告)日：2011-06-16
申请号：JP2011004639
申请日：2011-01-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARITA KENJIRO , YAMAZAKI HARUYUKI , DOI HIROYUKI , KOBAYASHI KAZU , TORITANI HAJIME
IPC分类号： F01D11/02 , F01D25/00 , F01D25/24 , F16J15/453
摘要： PROBLEM TO BE SOLVED: To provide a seal structure of a steam turbine, which suppresses the transmission of the heat generated by the friction between rotating parts and fixed parts to the rotating parts even when the rotating parts rotate for a long period of time and inhibits the rotating parts from becoming a high temperature. SOLUTION: In a labyrinth seal device 3c for suppressing an amount of leaked steam at the clearance provided between stator blades 2c (stationary parts) and rotors 2a (rotating parts) of the steam turbine 2, the seal structure of the steam turbine includes an air-permeable spacer 4 having an air-permeable metal as material on the rotor 2a opposite to a seal fin 3c2 equipped on the labyrinth seal device 3c. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种蒸汽轮机的密封结构，即使当旋转部件旋转长时间时也抑制由旋转部件和固定部件之间的摩擦产生的热量向旋转部件的传递并抑制旋转部件变成高温。解决方案：在用于抑制在定子叶片2c（静止部件）和蒸汽轮机2的转子2a（旋转部件）之间设置的间隙处的泄漏蒸汽量的迷宫式密封装置3c中，蒸汽轮机的密封结构包括透气性隔离物4，其具有作为材料的透气性金属作为材料，该转子2a与设在迷宫式密封装置3c上的密封翅片3c2相对。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010053976A Bolt fastening structure 审中-公开
标题翻译：螺栓紧固结构
公开(公告)号：JP2010053976A
公开(公告)日：2010-03-11
申请号：JP2008220343
申请日：2008-08-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARITA KENJIRO , YAMAZAKI HARUYUKI , DOI HIROYUKI , KOBAYASHI KAZU , TORITANI HAJIME
IPC分类号： F16B35/00 , F16B5/02 , F16B37/00 , F16B37/04 , F16B37/14
摘要： PROBLEM TO BE SOLVED: To downsize a fastening structure of a fastening member which stores high-temperature fluid at relatively low cost; to provide the bolt fastening structure capable of securely preventing leakage of the high-temperature fluid inside the fastening member.
SOLUTION: The structure comprises: a bolt 4 formed with a male screw part 4a at the axial edge; a cylindrical member 5 formed with a female screw part 5b screwed with the male screw part 4a of the bolt 4 and formed with a male screw part 5a on its outer periphery; a fastening member 3 formed with a female screw part 3b screwed with the male screw part 5a of the cylindrical member 5; and a fastened member 2 positioned between the bolt 4 and the fastening member 3 and equipped with a hole 2a penetrated by the bolt 4. The fastening member 3 is provided with a cylindrical member receiving part 8 which can fix a depth-direction position of the cylindrical member 5. The bolt 4 and the cylindrical member 5 are composed of members having higher strength compared with the fastening member 3.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了减小以较低成本存储高温流体的紧固件的紧固结构，以提供能够可靠地防止紧固构件内的高温流体泄漏的螺栓紧固结构。解决方案：该结构包括：在轴向边缘处形成有阳螺纹部分4a的螺栓4; 形成有与螺栓4的外螺纹部4a螺合并在其外周形成有阳螺纹部5a的内螺纹部5b的圆筒构件5; 紧固构件3，其形成有与筒状构件5的外螺纹部5a螺合的内螺纹部3b; 以及定位在螺栓4和紧固构件3之间并且具有穿过螺栓4的孔2a的紧固构件2.紧固构件3设置有圆筒构件容纳部8，其可以将螺栓4和圆柱形构件5由与紧固构件3相比具有更高强度的构件组成。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JPH10299909A STEAM GOVERNING VALVE 失效
公开(公告)号：JPH10299909A
公开(公告)日：1998-11-13
申请号：JP10908697
申请日：1997-04-25
申请人： HITACHI LTD
发明人： YOKOTA OSAMU , KATO FUMIO , YAMAZAKI HARUYUKI , TSUBOI NOBUYOSHI , SENOO SHIGEKI , KANEDA HIDEAKI , YAMANAKA KAZUNORI , MUROBOSHI TAKANORI
IPC分类号： F16K1/36 , F16K1/42 , F16K47/02
摘要： PROBLEM TO BE SOLVED: To prevent the damage of a valve element and breaking of a valve stem by forming the tip part of the valve element in a flat face on the downstream of a contact point coming in contact with a valve seat, and specifying the distance between the contact point and the flat face part of the valve element in a steam governing valve formed in such a way that the spherical part of the valve element tip part is brought into contact with the valve seat. SOLUTION: The tip part of a valve element 5 of a steam governing valve is formed in a flat face on the downstream of a contact point in contact with a valve seat 6, but in this case, the distance (h) between the contact point and the flat face part of the valve element 5 is set to be not more than 1/10 of a diameter of a contact part between the valve element 5 and the valve seat 6. That is, when the distance between the contact point and the flat face part of the valve body 5 is (h) and the diameter of the contact part between the valve element 5 and valve seat 6 is Do, it is so formed as to be h

7. 发明专利

JPH05315149A SELF-COOLED TRANSFORMER 失效
公开(公告)号：JPH05315149A
公开(公告)日：1993-11-26
申请号：JP11876592
申请日：1992-05-12
申请人： HITACHI LTD
发明人： YAMAZAKI HARUYUKI , SAKAMOTO TAKESHI , UENO YOSHITO
IPC分类号： F25D9/00 , H01F27/10 , H01F27/28
摘要： PURPOSE:To operate a self-cooled transformer in a good condition, by using an aqueous PFC as a refrigerant, providing horizontal and vertical spacers having each given thickness, along with a winding and a cooling unit having a given center distance in between, and estimating previously a flow rate in natural circulation using a circulating flow-rate calculation program. CONSTITUTION:A self-cooled transformer comprises a transformer 1, a cooling unit 2, and a pipe for connecting these parts. In this self-cooled transformer, a transformer winding 5 is cooled by using an aqueous perfluorocarbon(PFC) 101 as a cooling refrigerant in natural circulation. The transformer winding 5 has a horizontal spacer 13 with a thickness H0 of 0.8mm or more, and a vertical spacer 14 with a thickness V0 of 2mm or more while the winding 5 and the cooling unit 2 are positioned with a central distance DELTAH of 0.4m or more in between. Moreover, a circulation flow rate, a temperature rise in the winding, and a characteristic estimation are previously estimated by using a calculation method. Consequently, the self-cooled transformer can be made small and operated in good conditions.

8. 发明专利

JPH0433305A TRANSFORMER 失效
公开(公告)号：JPH0433305A
公开(公告)日：1992-02-04
申请号：JP13823090
申请日：1990-05-30
申请人： HITACHI LTD
发明人： YAMAZAKI HARUYUKI , SAKAMOTO TAKESHI , NAKATAKE RYOJI , UENO YOSHITO
IPC分类号： H01F27/28 , H01F27/08
摘要： PURPOSE:To reduce expensive coolant by laminating and arranging a winding in proximity with an insulation distance between and by forming a horizontal duct of the same clearance as an insulation distance which communicates with a vertical duct between winding edge surfaces of large electric potential, and by stacking and arranging the winding close to each other and by forming a horizontal duct of fine clearance which communicates with a vertical duct between winding edge surfaces between winding edge surfaces of small electric potential difference. CONSTITUTION:Between winding edge surfaces having large electric potential difference, horizontal duct clearance H1, H2 are formed equivalent to insulation distances L1, L2. That is, H1=L1 and H2=L2. Furthermore, between winding edge surfaces having small electric potential difference, a horizontal duct clearance H is made a fine clearance of 1mm to 2mm or less. Furthermore, between winding edge surfaces of large electric potential difference, windings are stacked and arranged with the insulation distances L1, L2 between, a liquid reducing member 6 is inserted between winding edge surfaces, a horizontal duct clearance is made a fine clearance of 1mm to 2mm or less, for example. Between winding edge surfaces of small electric potential, windings 1 are stacked and arranged close to each other and a horizontal duct 2 of a fine interval is formed.

9. 发明专利

JPH01231305A FOIL-WOUND TRANSFORMER 失效
公开(公告)号：JPH01231305A
公开(公告)日：1989-09-14
申请号：JP5610488
申请日：1988-03-11
申请人： HITACHI LTD
发明人： YAMAZAKI HARUYUKI , SAKAMOTO TAKESHI , HIRAISHI KIYOTO , KAWASHIMA KEIZABURO , SAITO TATSU , ENDO KAORU
IPC分类号： H01F27/28
摘要： PURPOSE:To prevent a coil of each stage, from slipping down, and to dispense coil loads to respective stages by providing the irregularities of the same shape to the outer circumferential section of an inner cylinder and the inner circumferential section of an outer cylinder. CONSTITUTION:The irregularities of lower inclined sections 5, upper inclined section 6 and parallel sections 7 are shaped to an inner cylinder 2 and an outer cylinder 3, and the irregularities are connected in the circumferential direction. A cooling duct 4 cools a coil 1 while being used as a member holding and fixing the coil 1. When metallic foils 8 intend to slide and fall, compressive force works in the circumferential direction, and the lower ends of the metallic foils 8 are deformed undulatingly when the metallic foils further slide and fall, thus preventing deformation between a narrow section between insulating sheets 9 so far as extremely large load is applied from an upper section. Accordingly, since the inner cylinder is also tilted to the inside, not only the metallic foil 8 on the outside but also the metallic foil 8 near the inner cylinder are not slid and brought down. Likewise, the upper inclined section 6 obviates the upward displacement of the metallic foils 8.

10. 发明专利

JPH0129999B2 失效
公开(公告)号：JPH0129999B2
公开(公告)日：1989-06-15
申请号：JP7575884
申请日：1984-04-17
申请人： HITACHI LTD
发明人： YAMAZAKI HARUYUKI , SHIINA KOJI , AKATSU YASUAKI , SAKAGUCHI HARUICHIRO
IPC分类号： F04F1/18

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