公开(公告)号：US06846160B2

公开(公告)日：2005-01-25

申请号：US10436984

申请日：2003-05-14

申请人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

发明人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

IPC分类号： F01D5/14 ,  F01D5/22

CPC分类号： F01D5/141 ,  F01D5/225 ,  F05D2240/301

摘要： The present invention relates to a turbine bucket to be provided at the low pressure last stage of a steam turbine and an object of the present invention is to provide a turbine bucket in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. In order to achieve the object of the present invention, a turbine bucket of the present invention is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations as shown respectively in chart 1, chart 4, chart 7, chart 10, chart 13, chart 16 and chart 18.

摘要翻译： 本发明涉及一种在蒸汽轮机的低压最后阶段提供的涡轮机桶，其目的在于提供一种涡轮机铲斗，其中相邻的叶片在叶片中间不使用连接构件而连接 一部分。 为了实现本发明的目的，本发明的涡轮机叶片以这样的方式形成，即叶片截面形状从叶片根部扭转到叶片前端侧，并且当在 在水平面上的铲斗的叶片部分，并且沿着一个轴向作为X轴，另一个轴向垂直于X轴作为Y轴，从涡轮叶片的叶片根部预定高度的叶片部分形成在 分别如图1，图4，图表7，图表10，图表13，图表16和图表18所示的各个点的±0.3 mm。

公开(公告)号：US06579066B1

公开(公告)日：2003-06-17

申请号：US09958604

申请日：2001-10-12

申请人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

发明人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

IPC分类号： F01D512

CPC分类号： F01D5/3023 ,  F01D5/141 ,  F01D5/225 ,  F05D2240/301 ,  Y10S416/02 ,  Y10S416/05

摘要： The present invention is a turbine bucket for at the low pressure last stage of a steam turbine and in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. A turbine bucket of the present invention is formed that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations.

摘要翻译： 本发明是一种用于在蒸汽轮机的低压最后阶段的涡轮机桶，其中相邻的叶片在叶片中间部分不使用连接构件而连接。 本发明的涡轮机叶片形成为叶片截面形状从叶片根部扭转到叶片前端侧，并且当在水平面上在铲斗的叶片部分中假定两个轴向并且沿着一个轴向作为X时 并且与X轴垂直的另一个轴向为Y轴，来自涡轮叶片的叶片根部的预定高度的叶片部分形成在限定叶片部分构造的各个点的±0.3mm的范围内。

公开(公告)号：US5829955A

公开(公告)日：1998-11-03

申请号：US790796

申请日：1997-01-30

申请人： Eiji Saito ,  Kiyoshi Namura ,  Masakazu Takasumi ,  Kazuo Ikeuchi ,  Masumi Katayose

发明人： Eiji Saito ,  Kiyoshi Namura ,  Masakazu Takasumi ,  Kazuo Ikeuchi ,  Masumi Katayose

IPC分类号： F01D5/14 ,  F01D5/22 ,  F01D5/26 ,  F01D5/28 ,  F01K7/18 ,  F04D29/38

CPC分类号： F01D5/141 ,  F01D5/225 ,  Y02E20/16

摘要： A steam turbine is provided with moving blades which are affected less by erosion and fretting wear due to water and have a high reliability in strength. The moving blades are twisted moving blades, each provided with a blade portion and a shroud portion formed at its tip and a contact surface between shroud portions connecting adjacent moving blades whereby an extension plane of the contact surface toward the blade back side does not intersect with the blade tip of the blade back side shroud portion.

摘要翻译： 蒸汽轮机设置有由于水而受到侵蚀和微动磨损的影响较小的移动叶片，并且具有高的强度可靠性。 活动叶片是扭动的活动叶片，每个叶片部分和形成在其顶端处的护罩部分和连接相邻移动叶片的护罩部分之间的接触表面，从而接触表面朝向叶片后侧的延伸平面不与 叶片后侧护罩部分的叶片尖端。

公开(公告)号：US5498136A

公开(公告)日：1996-03-12

申请号：US307463

申请日：1994-09-19

申请人： Kiyoshi Namura ,  Eiji Saito ,  Masakazu Takasumi ,  Kazuo Ikeuchi

发明人： Kiyoshi Namura ,  Eiji Saito ,  Masakazu Takasumi ,  Kazuo Ikeuchi

IPC分类号： F01D5/10 ,  F01D5/22 ,  F01D5/34 ,  F01D5/24

CPC分类号： F01D5/225 ,  F05D2200/24

摘要： The total number (M) of plural blades of a blade apparatus is selected so as not to be a prime number and not to be a power multiplier of a prime number. Plural blades are divided into at least a first blade group in which one blade group has the blades of a first integer number (N.sub.1) and a second blade group in which one blade group has blades of a second integer number (N.sub.2). Each of the first integer number (N.sub.1) and the second integer number (N.sub.2) have no common divisor except 1. The total number (M) of plural blades is the product of the first integer number (N.sub.1) and the second integer number (N.sub.2). The blades of the first integer number (N.sub.1) blade group are connected by a first stage connecting member and the blades of the second integer number (N.sub.2) blade group are connected by a second stage connecting member.

摘要翻译： 刀片装置的多个叶片的总数（M）被选择为不是素数，而不是素数的幂乘。 多个叶片被分成至少第一叶片组，其中一个叶片组具有第一整数（N1）的叶片和第二叶片组，其中一个叶片组具有第二整数（N 2）的叶片。 除了1以外，第一整数（N1）和第二整数（N 2）中的每一个都不具有公约数。多个叶片的总数（M）是第一整数（N1）和第二整数（ N2）。 第一整数（N1）叶片组的叶片由第一级连接构件连接，第二整数（N 2）叶片组的叶片通过第二级连接构件连接。

公开(公告)号：US07429164B2

公开(公告)日：2008-09-30

申请号：US10524834

申请日：2002-09-02

申请人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

发明人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

IPC分类号： F01D5/26

CPC分类号： F01D5/3046 ,  F01D5/225 ,  F05D2250/70 ,  F05D2260/36

摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.

摘要翻译： 涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。 叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成 刀片部分。 一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力 使相邻叶片的整体盖接触。

公开(公告)号：US20060127221A1

公开(公告)日：2006-06-15

申请号：US10524834

申请日：2002-09-02

申请人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

发明人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

IPC分类号： F01D5/30

CPC分类号： F01D5/3046 ,  F01D5/225 ,  F05D2250/70 ,  F05D2260/36

摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.

摘要翻译： 涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。 叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成 刀片部分。 一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力 使相邻叶片的整体盖接触。

公开(公告)号：US06568908B2

公开(公告)日：2003-05-27

申请号：US10028677

申请日：2001-12-31

申请人： Kiyoshi Namura ,  Eiji Saito ,  Yoshiaki Yamazaki ,  Masakazu Takasumi ,  Takeshi Onoda ,  Shigemichi Inoue

发明人： Kiyoshi Namura ,  Eiji Saito ,  Yoshiaki Yamazaki ,  Masakazu Takasumi ,  Takeshi Onoda ,  Shigemichi Inoue

IPC分类号： F01D516

CPC分类号： F01D5/22 ,  F01D5/16 ,  F01D5/3053

摘要： The moving blades of a rotor included in a steam turbine are formed so that the width of a gap between opposite end surfaces of first connecting members of adjacent blades along the direction of rotation of the rotor and the width of a gap between opposite end surfaces of second connecting members of the adjacent blades along the direction of rotation of the rotor are determined so as to make the second connecting members start coming into contact with each other at a rotating speed of the rotor higher than a rotating speed at which the first connecting members of the adjacent blades start to come into contact with each other.

摘要翻译： 包括在蒸汽轮机中的转子的活动叶片形成为使得沿着转子的旋转方向的相邻叶片的第一连接构件的相对端面之间的间隙的宽度和相对端面之间的间隙的宽度 确定相邻叶片沿着转子的旋转方向的第二连接构件，以使得第二连接构件以比第一连接构件的旋转速度高的转子开始彼此接触 相邻的叶片开始彼此接触。

公开(公告)号：US06341941B1

公开(公告)日：2002-01-29

申请号：US09485444

申请日：2000-02-11

申请人： Kiyoshi Namura ,  Eiji Saito ,  Yoshiaki Yamazaki ,  Masakazu Takasumi ,  Takeshi Onoda ,  Shigemichi Inoue

发明人： Kiyoshi Namura ,  Eiji Saito ,  Yoshiaki Yamazaki ,  Masakazu Takasumi ,  Takeshi Onoda ,  Shigemichi Inoue

IPC分类号： F01D2504

CPC分类号： F01D5/225 ,  F01D5/16 ,  F01D25/04

摘要： A steam turbine for use in a thermal or nuclear power plant includes moving blades of a rotor which vibrate as the rotor rotates, inducing an excessive stress in joints of connecting members for connecting the adjacent moving blades and blade portions of the moving blades and damaging the joints. The moving blades are formed so that a width of a gap between opposite end surfaces of first connecting members of adjacent blades along the direction of rotation of the rotor and a width of a gap between opposite end surfaces of second connecting members of the adjacent blades along a direction of rotation of the rotor are determined so as to make the second connecting members start coming into contact with each other at a rotating speed of the rotor higher than a rotating speed at which the first connecting members of the adjacent blades start come into contact with each other.

摘要翻译： 用于热电厂或核动力设备的汽轮机包括当转子转动时振动的转子的活动叶片，在连接构件的连接部件中引起过大的应力，用于连接相邻的活动叶片和活动叶片的叶片部分，并损坏 关节。 活动叶片形成为使得沿着转子的旋转方向的相邻叶片的第一连接构件的相对端面之间的间隙的宽度和相邻叶片的第二连接构件的相对端面之间的间隙宽度 确定转子的旋转方向，使得第二连接构件以比相邻叶片的第一连接构件开始接触的转速高的转速开始彼此接触 与彼此。

公开(公告)号：US4435770A

公开(公告)日：1984-03-06

申请号：US245517

申请日：1981-03-19

申请人： Koki Shiohata ,  Fumio Fujisawa ,  Motohiro Shiga ,  Kazuo Sato ,  Motoji Ohmori ,  Masakazu Takasumi

发明人： Koki Shiohata ,  Fumio Fujisawa ,  Motohiro Shiga ,  Kazuo Sato ,  Motoji Ohmori ,  Masakazu Takasumi

IPC分类号： G01M1/16 ,  G01H1/00 ,  G01H17/00 ,  G01M99/00 ,  G01P3/44 ,  G06F15/46 ,  G01N29/00

CPC分类号： G01M1/34 ,  G01H1/003

摘要： A method and apparatus for diagnosing a vibration in a rotor of the rotary machine including detecting the number of rotations and the vibration in the rotor when the rotor is rotating, extracting a vibration component synchronized with the number of rotations, determining whether the vibration component is normal or abnormal, calculating an abnormal vibration component through a vector operation by using the detected vibration component and a previously determined rotor vibration component in a normal state of the rotor, when the detected vibration component is judged to be abnormal, normalizing a vibration pattern of the abnormal vibration component, and determining an unbalance originating position in the rotor, which generates the abnormal vibration, by using a comparison of the normalized abnormal vibration pattern with a normalized vibration pattern of a previously determined unbalanced vibration.

摘要翻译： 一种用于诊断旋转机械的转子中的振动的方法和装置，包括当转子旋转时检测转子的转数和振动，提取与转数同步的振动分量，确定振动分量是否为 正常或异常，当检测到的振动分量被判断为异常时，通过使用检测到的振动分量和预先确定的转子的正常状态下的转子振动分量，通过矢量运算来计算异常振动分量，归一化振动模式 异常振动分量，并且通过使用归一化异常振动模式与预先确定的不平衡振动的归一化振动模式的比较来确定产生异常振动的转子中的不平衡始发位置。

公开(公告)号：US4685335A

公开(公告)日：1987-08-11

申请号：US681576

申请日：1984-12-14

申请人： Kazuo Sato ,  Kouki Shiohata ,  Osami Matsushita ,  Katsuaki Kikuchi ,  Masakazu Takasumi ,  Ichiya Sato ,  Ryoichi Kaneko

发明人： Kazuo Sato ,  Kouki Shiohata ,  Osami Matsushita ,  Katsuaki Kikuchi ,  Masakazu Takasumi ,  Ichiya Sato ,  Ryoichi Kaneko

IPC分类号： G01M99/00 ,  G01N29/14 ,  G01N29/04

CPC分类号： G01N29/4454 ,  G01N29/14 ,  G01N2291/0258 ,  G01N2291/02854 ,  G01N2291/2693

摘要： A method and apparatus for monitoring cracks of a rotatable body by detecting cracks by measuring accoustic emission signals and evaluating the depth of cracks from the result of the comparison of assumed vibrations of the rotatable body and its measured vibrations. By this method and apparatus not only the beginning of cracking of the rotatable body, but also the progress of cracking on an online basis can be detected and monitored.

摘要翻译： 一种用于通过测量声发射信号并通过比较可旋转体的假定振动与其测量的振动的结果来评估裂纹深度来检测裂纹的方法和装置。 通过这种方法和设备，不仅可旋转体的开裂开始，而且可以检测和监测在线基础上的开裂进展。