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1. 发明专利

JP2011007153A Metal seal material with high reliability for turbines 有权
标题翻译：金属密封材料具有高可靠性的涡轮机
公开(公告)号：JP2011007153A
公开(公告)日：2011-01-13
申请号：JP2009154205
申请日：2009-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA YOSHIYUKI , ARIKAWA HIDEYUKI , MEHATA TERU , DOI HIROYUKI , TORITANI HAJIME , NARITA KENJIRO
IPC分类号： F01D11/02 , F01D25/00 , F16J15/453
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： PROBLEM TO BE SOLVED: To provide a metal seal material used for a sealing device in which clearance between a stationary part and a rotary part of a turbine can be reduced.SOLUTION: The metal seal material used for the sealing device of the stationary part and the rotary part of the turbine includes a surface layer and a lower layer composed of a porous metal layer, and porosity of the surface layer is smaller than porosity of the lower layer. The porosity of the surface layer is equal to or greater than 60% and less than 65%, and the porosity of the lower layer is equal to or greater than 65% and equal to or less than 75%. The porous metal layer is 0.3 to 3.0 mm in thickness, has MCrAlY alloy which uses Ni or Co for M, as a main component, and may include h-BN of solid lubricating material.
摘要翻译：要解决的问题：提供用于密封装置的金属密封材料，其中可以减少涡轮机的固定部分和旋转部分之间的间隙。解决方案：用于固定部分的密封装置的金属密封材料和涡轮机的旋转部分包括表面层和由多孔金属层构成的下层，表面层的孔隙率小于下层的孔隙率。表面层的孔隙率等于或大于60％且小于65％，下层的孔隙率等于或大于65％且等于或小于75％。多孔金属层的厚度为0.3〜3.0mm，具有使用Ni或Co作为M的MCrAlY合金作为主要成分，并且可以包括固体润滑材料的h-BN。

2. 发明专利

JP2005066614A Rolling mill and rolling method 有权
标题翻译：轧制和轧制方法
公开(公告)号：JP2005066614A
公开(公告)日：2005-03-17
申请号：JP2003297281
申请日：2003-08-21
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： SAITO TAKEHIKO , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO
IPC分类号： B21B45/02 , B21B37/00 , B21B37/32 , B21B37/38 , B21B37/76
摘要： PROBLEM TO BE SOLVED: To provide the optimum device layout by which the decreasing effect of temperature difference in the width direction by cooling a sheet is correctly measured and evaluated and to provide a rolling mill and a rolling method by which the shape of the sheet in the state of room temperature is made into a desired shape of the sheet even in the case the temperature difference remains in the width direction. SOLUTION: The rolling mill is provided with: a shape detector 15a for measuring the shape distribution of the sheet on the outlet side of work rolls 11; temperature measuring instruments 21a for measuring the temperature distribution of the sheet in the width direction between the work roll and the shape detector; devices 23a for jetting a coolant on the surfaces of a rolled stock between the work roll and the temperature measuring instrument; wiping devices 24a for removing the coolant on the surfaces of the rolled stock between the coolant jetting device and the temperature measuring instrument; a device 16 for calculating deviation from the target shape in the state of the room temperature on the basis of the measured values of the shape detector and the temperature measuring instrument; devices 17-19 for controlling the shape of the sheet by calculating the controlled variables of mechanical control means 31-33 and the work roll cooling means 20 on the basis of the deviation; and a device 22a for controlling the state of jetting of the coolant jetting device on the basis the measured value of the temperature instrument. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供最佳的装置布局，通过该装置布局正确地测量和评价通过冷却片材的宽度方向的温度差的减小效果，并且提供一种轧机和轧制方法，即使在温度差保持在宽度方向的情况下，也将室温状态的片材制成所需的片材形状。解决方案：轧机设有：用于测量工作辊11出口侧的片材的形状分布的形状检测器15a; 温度测量仪器21a，用于测量工作辊和形状检测器之间的宽度方向上的片材的温度分布; 用于在工作辊和温度测量仪器之间的轧制坯料的表面上喷射冷却剂的装置23a; 用于去除冷却剂喷射装置和温度测量仪器之间的轧制坯料表面上的冷却剂的擦拭装置24a; 基于形状检测器和温度测量装置的测量值计算在室温状态下与目标形状的偏差的装置16; 装置17-19，用于通过基于偏差计算机械控制装置31-33和工作辊冷却装置20的控制变量来控制片材的形状; 以及用于基于温度仪器的测量值来控制冷却剂喷射装置的喷射状态的装置22a。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004209531A Rolling mill and rolling method 审中-公开
公开(公告)号：JP2004209531A
公开(公告)日：2004-07-29
申请号：JP2003000931
申请日：2003-01-07
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： SAITO TAKEHIKO , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO , FUJII MOTOTSUNA
IPC分类号： B21B27/10 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To provide a rolling mill and a rolling method by which a plurality of coolants having different concentrations are refined from recovered coolants with compact and low-cost constitution.
SOLUTION: In the rolling mill in which a metal plate 1 is rolled with work rolls 2a, 2b while circulating and supplying an emulsion type coolant containing an emulsifying agent, a reserve tank 10 for recovering the coolant after supply, a separator 11 for separating the recovered coolant into a high concentration coolant and a low concentration coolant with a filtration film 11a so that the percentage content of the emulsifying agent is nearly equalized with each other, high concentration coolant headers 5 for supplying the high concentration coolant to the vicinity of contact part between the work rolls 2a, 2b and the metal plate 1, and low concentration coolant headers 6 for supplying the low concentration coolant to the surfaces of the barrel parts of the work rolls 2a, 2b are provided.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2012145060A Sealing structure for steam turbine 有权
标题翻译：蒸汽涡轮机密封结构
公开(公告)号：JP2012145060A
公开(公告)日：2012-08-02
申请号：JP2011005382
申请日：2011-01-14
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： F01D11/02 , F01D25/00
摘要： PROBLEM TO BE SOLVED: To improve sealing performance between a rotating region and a fixed region, to prevent fins from being damaged, and to prevent increases in the amount of steam leakage from any clearances newly formed by further abrasion of an abradable material.SOLUTION: In the sealing structure, free-cutting spacers 28 on a sealing base plate 25 and sealing fins 24 on a rotor 18 are opposed to each other. The sealing base plate 25 is disposed so as to be movable in an axial direction of the rotor 18. When a steam turbine increases in load, a pressure head 30 receives a pressure in rotor diameter direction which is converted into a pressure in rotor axial direction by a slope. A move support 40 having received the pressure in the rotor axial direction moves in a rotor axial direction. The sealing base plate 25 supported by the move support 40 is driven in the rotor axial direction. Since the free-cutting spacers 28 at positions opposed to those of the sealing fins 24 existing after the movement of the sealing base plate are maintained in a noncontact state, clearances between the sealing fins 24 and the free-cutting spacers 28 are dimensionally minimized.
摘要翻译：要解决的问题：为了改善旋转区域和固定区域之间的密封性能，防止翅片损坏，并且防止由于耐磨材料的进一步磨损而新形成的任何间隙的蒸汽泄漏量增加。解决方案：在密封结构中，密封基板25上的自由切割间隔件28和转子18上的密封翅片24彼此相对。密封基板25设置成可以在转子18的轴向方向上移动。当蒸汽轮机的负载增加时，压头30接受转子直径方向的压力，转换成转子轴向的压力斜坡。接受转子轴向压力的移动支撑件40沿转子轴向移动。由移动支撑件40支撑的密封基板25沿转子轴向被驱动。由于在密封基板移动之后存在的与密封翅片24相对的位置处的自由切割间隔件28保持非接触状态，所以密封翅片24和自由切割间隔件28之间的间隙在尺寸上最小化。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010106779A Seal structure for steam turbine and steam turbine 审中-公开
标题翻译：蒸汽涡轮机和蒸汽涡轮机的密封结构
公开(公告)号：JP2010106779A
公开(公告)日：2010-05-13
申请号：JP2008280678
申请日：2008-10-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAZAKI HARUYUKI , NARITA KENJIRO , DOI HIROYUKI , KOBAYASHI KEI , TORITANI HATSU
IPC分类号： F01D11/02 , F01D11/08 , F01D25/00 , F16J15/44 , F16J15/447
CPC分类号： F16J15/4472
摘要： PROBLEM TO BE SOLVED: To provide a seal structure for a steam turbine preventing fluctuation of a leakage flow rate of steam even if it is positionally deviated in an axial direction, and having high sealing performance. SOLUTION: In a labyrinth seal device 3c for suppressing the leakage flow rate of steam in a gap provided between a stator blade 2c (a fixed part) of the steam turbine 2 and a rotor 2a (a rotating part), one or both of a fin 3c2 disposed on a seal static body 3c1 equipped in the labyrinth seal device 3c and a fin 2a1 disposed on the rotor 2a is spirally shaped. The spiral shape is formed such that it acts in a direction of sending steam from a low pressure side to a high pressure side by rotation of the rotor 2a. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于汽轮机的密封结构，防止蒸汽的泄漏流量的波动，即使其在轴向上位置偏离并且具有高密封性能。解决方案：在用于抑制在蒸汽轮机2的定子叶片2c（固定部分）和转子2a（旋转部分）之间的间隙中的蒸汽的泄漏流量的迷宫式密封装置3c中，一个或设置在设置在迷宫式密封装置3c中的密封静止体3c1上的翅片3c2和设置在转子2a上的翅片2a1都是螺旋形的。螺旋形状形成为使得其通过转子2a的旋转而将蒸汽从低压侧输送到高压侧的方向起作用。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009138566A 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：JP2009138566A
公开(公告)日：2009-06-25
申请号：JP2007313803
申请日：2007-12-04
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 , F01D11/08 , F01D25/00 , F16J15/447
CPC分类号： F01D11/02 , F01D11/001 , F01D11/08 , F05D2220/31 , F05D2250/182 , F05D2300/5024 , F16J15/162 , F16J15/445 , F16J15/4472
摘要： PROBLEM TO BE SOLVED: To provide a seal structure of a steam turbine capable of suppressing transmission of heat to rotating parts, which is generated by friction between the rotating parts and fixed parts even when the rotating parts keep rotating for a long period of time, to suppress the rotating parts from becoming a high temperature.
SOLUTION: A labyrinth seal device 3c suppresses an amount of steam leaked from a clearance formed between fixed vanes 2c (stationary parts) of a steam turbine 2 and rotors 2a (rotating parts). The seal structure of the steam turbine includes an air-permeable spacer 4 made of an air-permeable metal provided to the rotor 2a and a fixed body 3c1 of the seal so as to face a seal fine 3c2 provided to the labyrinth seal device 3c.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够抑制由旋转部件和固定部件之间的摩擦产生的旋转部件的热传递的蒸汽涡轮机的密封结构，即使当旋转部件长时间旋转时的时间，以抑制旋转部件变成高温。解决方案：迷宫式密封装置3c抑制从蒸汽轮机2的固定叶片2c（静止部件）和转子2a（旋转部件）之间形成的间隙泄漏的蒸汽量。蒸汽轮机的密封结构包括设置在转子2a上的透气性金属制的透气性间隔物4和密封件的固定体3c1，以面对设置在迷宫式密封装置3c上的密封件3c2。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2004218711A Power transmission device and power transmission method 审中-公开
公开(公告)号：JP2004218711A
公开(公告)日：2004-08-05
申请号：JP2003005826
申请日：2003-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO
IPC分类号： F16H13/04 , F16H57/04 , F16H57/02
CPC分类号： F16H57/0434 , F16H57/0487
摘要： PROBLEM TO BE SOLVED: To provide a power transmission device and a power transmission method for improving a torque transmission rate without increasing a pressing force by securing a high coefficient of traction and manufacturing the device of a compact and inexpensive material. SOLUTION: This power transmission device for transmitting the torque of a driving roll 1a to a driven roll 1b is provided with a roll pressing device 2 for pressing the driving roll 1a against the driven roll 1b, a lubricant supply device 4 for supplying traction oil 3 to the surface of a barrel of the driven roll 1b, roll speed meters 6a, 6b for measuring peripheral speeds between the rolls 1a and 1b, and a control means 5 for determining a lubrication state between the rolls 1a and 1b based on the relation of a slide rate between the rolls 1a and 1b calculated from the measurement of the roll speed meters 6a, 6b and the computed coefficient of traction to control a lubricant supply amount by the lubricant supply device 4 so that the lubrication state becomes a boundary lubrication state. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2005021909A Metal plate rolling mill and rolling method for metal plate rolling mill 审中-公开
标题翻译：金属板轧机的轧制和轧制方法
公开(公告)号：JP2005021909A
公开(公告)日：2005-01-27
申请号：JP2003187255
申请日：2003-06-30
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO
IPC分类号： B21B13/14 , B21B37/00 , B21B37/28 , B21B37/38 , B21B37/42
摘要： PROBLEM TO BE SOLVED: To provide a metal plate rolling mill which can improve the quality of surface characteristics while realizing reducing and uniforming an edge drop amount, and a rolling method for the metal plate rolling mill. SOLUTION: The metal plate rolling mills 21A, 21B are constituted so as to have the identical diameter at least in a plate width range of a metal plate 1. The metal plate rolling mills 21A, 21B have a pair of upper and lower work rolls 2A, 2B in an axially immovable type, which is fixedly arranged in the roll shaft direction at least during rolling, a pair of upper and lower intermediate rolls 3A, 3B in an axially movable type, which is movably arranged in the roll shaft direction during rolling, an upper reinforcing roll 4A provided with a tapered part, whose roll diameter is reduced toward the roll end on one side, and a lower reinforcing roll 4B provided with a tapered part, whose roll diameter is reduced toward the roll end on the other side. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种金属板轧机，其可以在实现边缘下落量的降低和均匀化的同时提高表面特性的质量，以及金属板轧机的轧制方法。解决方案：金属板轧机21A，21B至少在金属板1的板宽度范围内具有相同的直径。金属板轧机21A，21B具有一对上下工作辊2A，2B至少在轧制过程中固定地设置在辊轴方向上的轴向不可移动型的一对上下中间辊3A，3B，其可轴向移动地安装在辊轴滚动时的方向，具有锥形部分的上部加强辊4A，其辊直径朝向一侧的辊端减小;以及下部加强辊4B，其设置有锥形部，其辊直径朝向辊端减小另一边。版权所有（C）2005，JPO＆NCIPI

9. 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。

10. 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。

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