公开(公告)号：US09004857B2

公开(公告)日：2015-04-14

申请号：US13166066

申请日：2011-06-22

申请人： Yohei Magara ,  Kazuyuki Yamaguchi ,  Mitsuhiro Narita ,  Haruo Miura ,  Naohiko Takahashi ,  Akira Endo

发明人： Yohei Magara ,  Kazuyuki Yamaguchi ,  Mitsuhiro Narita ,  Haruo Miura ,  Naohiko Takahashi ,  Akira Endo

IPC分类号： F04D29/08 ,  F04D29/42 ,  F04D29/62

CPC分类号： F04D29/4206 ,  F04D17/122 ,  F04D29/624

摘要： In a centrifugal compressor, for the purpose of preventing the positions of a diaphragm and a head flange in a radial direction from moving with respect to a casing, preventing the unstable vibration of the rotor and enabling an efficient and stable operation even on high-pressure conditions, there is provided a barrel-shaped centrifugal compressor including a casing, a diaphragm located in the casing to define a flow channel, and a head flange attached to the end of the casing by a shear key, wherein in the inner peripheral surface of the casing and the outer peripheral surface of abutment portions of the diaphragm and the head flange in which they are abutted on the inner peripheral surface of the casing, sliding key grooves which are vertical to the surfaces are provided at least two portions in a peripheral direction, and sliding keys are provided in the key grooves.

摘要翻译： 在离心式压缩机中，为了防止膜片和头部凸缘在径向上的位置相对于壳体移动的目的，防止转子的不稳定的振动，并且即使在高压下也能够有效且稳定地操作 条件是提供了一种桶形离心压缩机，其包括壳体，位于壳体中以限定流动通道的隔膜以及通过剪切键附接到壳体的端部的头部凸缘，其中，在 壳体和隔膜的邻接部分的外周面与头部凸缘抵接在壳体的内周面上，与表面垂直的滑动键槽设置在周向上的至少两个部分 ，并且滑动键设置在键槽中。

公开(公告)号：US20120121411A1

公开(公告)日：2012-05-17

申请号：US13292131

申请日：2011-11-09

申请人： Akira ENDO ,  Kazuyuki YAMAGUCHI ,  Yohei MAGARA ,  Toyomi YOSHIDA ,  Michiyuki TAKAGI ,  Kenichi MURATA ,  Takeshi KUDO

发明人： Akira ENDO ,  Kazuyuki YAMAGUCHI ,  Yohei MAGARA ,  Toyomi YOSHIDA ,  Michiyuki TAKAGI ,  Kenichi MURATA ,  Takeshi KUDO

IPC分类号： F01D11/00 ,  F16J15/447

CPC分类号： F01D11/02 ,  F05D2260/96

摘要： A labyrinth seal is provided that can suppress the occurrence of an unequal pressure pattern in the seal, suppress unstable vibration of a rotating shaft and ensure sealing performance.The labyrinth seal includes a seal ring 13 and a plurality of seal fins 11. Ring-like cavities 12 are defined on the outer circumference of the rotating shaft 2 with the seal ring 13 and the seal fins 11. The ring-like cavities 12 suppress a leakage flow LS moving along the outer circumference of the rotating shaft 2. Void portions 14 are each provided on the outer circumferential side of the cavity 12 in the seal ring 13 so as to extend in the circumferential direction of the rotating shaft 2 and communicate with the cavity 12 at circumferential intervals to temporarily relieve a leakage flow from inside the cavity in the circumferential direction.

摘要翻译： 提供了一种迷宫式密封件，可以抑制密封件中不均匀的压力图案的发生，抑制旋转轴的不稳定的振动并确保密封性能。 迷宫式密封件包括密封环13和多个密封翅片11.环形空腔12由密封环13和密封翅片11限定在旋转轴2的外圆周上。环状空腔12抑制 泄漏流LS沿着旋转轴2的外周移动。空隙部分14分别设置在密封环13中的空腔12的外周侧上，以沿着旋转轴2的圆周方向延伸并且连通 空腔12以周向间隔暂时缓解在圆周方向上的空腔内的泄漏流。

公开(公告)号：US08388311B2

公开(公告)日：2013-03-05

申请号：US12491391

申请日：2009-06-25

申请人： Kazuyuki Yamaguchi ,  Yohei Magara ,  Toyomi Yoshida ,  Michiyuki Takagi ,  Kenichi Murata ,  Takeshi Kudo

发明人： Kazuyuki Yamaguchi ,  Yohei Magara ,  Toyomi Yoshida ,  Michiyuki Takagi ,  Kenichi Murata ,  Takeshi Kudo

IPC分类号： F04D29/10 ,  F01D11/02

CPC分类号： F04D29/102 ,  F01D11/001 ,  F01D11/02 ,  F01D11/08 ,  F05D2250/182 ,  F16J15/441 ,  F16J15/4472 ,  Y10T29/49297 ,  Y10T29/4932

摘要： A turbomachinery includes a labyrinth seal (2) to prevent unstable vibration of a rotor formed by dividing the seal into segments (7) in a circumferential direction and combining the segments (7) whose comb teeth (5) differ in height. The labyrinth seal (2) preferably includes two kinds of segments (7) whose comb teeth (5) differ in height for each kind of segment, and the segments (7a) of the greater comb tooth height are arranged in a certain reference direction on a cross section right-angled to a rotational axis, and in a direction opposite to the reference direction, and the segments (7b) of the smaller comb tooth height are arranged in a direction right-angled to the reference direction, and in a direction opposite to that right-angled to the reference direction.

摘要翻译： 涡轮机械包括迷宫式密封件（2），以防止通过将密封件沿圆周方向分割成段（7）形成的转子的不稳定的振动，并组合梳齿（5）高度不同的段（7）。 迷宫式密封件（2）优选地包括两种梳齿（5）对于各种片段的高度不同的片段（7），并且较大的梳齿高度的片段（7a）沿特定的参考方向被布置在 与旋转轴成直角的横截面以及与基准方向相反的方向，并且较小的梳齿高度的部分（7b）沿与基准方向成直角的方向排列，并且沿方向 与参考方向成直角相反。

公开(公告)号：US20100166544A1

公开(公告)日：2010-07-01

申请号：US12491391

申请日：2009-06-25

申请人： Kazuyuki Yamaguchi ,  Yohei Magara ,  Toyomi Yoshida ,  Michiyuki Takagi ,  Kenichi Murata ,  Takeshi Kudo

发明人： Kazuyuki Yamaguchi ,  Yohei Magara ,  Toyomi Yoshida ,  Michiyuki Takagi ,  Kenichi Murata ,  Takeshi Kudo

IPC分类号： F01D11/02 ,  F16J15/447 ,  B23P11/00

CPC分类号： F04D29/102 ,  F01D11/001 ,  F01D11/02 ,  F01D11/08 ,  F05D2250/182 ,  F16J15/441 ,  F16J15/4472 ,  Y10T29/49297 ,  Y10T29/4932

摘要： Disclosed herein is a turbomachinery including a labyrinth seal easy to fabricate and adapted to prevent unstable vibration of a rotor. A turbomachinery according to this invention includes a labyrinth seal 2 formed by dividing the seal into segments 7 in a circumferential direction and combining the segments 7 whose comb teeth 5 differ in height. The labyrinth seal 2 preferably includes two kinds of segments 7 whose comb teeth 5 differ in height for each kind of segment, and the segments 7a of the greater comb tooth height are arranged in a certain reference direction on a cross section right-angled to a rotational axis, and in a direction opposite to the reference direction, and the segments 7b of the smaller comb tool height are arranged in a direction right-angled to the reference direction, and in a direction opposite to that right-angled to the reference direction.

摘要翻译： 本文公开了一种涡轮机械，其包括易于制造并适于防止转子不稳定振动的迷宫式密封件。 根据本发明的涡轮机械包括迷宫式密封件2，该迷宫式密封件2通过将密封件沿圆周方向分割成段7而形成，并组合其梳齿5的高度不同的段7。 迷宫式密封件2优选地包括两种类型的节段7，其梳齿5对于每种节段的高度不同，并且较大梳齿高度的节段7a在垂直于 旋转轴线和与参考方向相反的方向，并且较小梳齿刀具高度的部分7b沿与参考方向成直角的方向布置，并且在与参考方向成直角的方向上相反的方向 。

公开(公告)号：US20110318163A1

公开(公告)日：2011-12-29

申请号：US13166066

申请日：2011-06-22

申请人： Yohei Magara ,  Kazuyuki Yamaguchi ,  Mitsuhiro Narita ,  Haruo Miura ,  Naohiko Takahashi ,  Akira Endo

发明人： Yohei Magara ,  Kazuyuki Yamaguchi ,  Mitsuhiro Narita ,  Haruo Miura ,  Naohiko Takahashi ,  Akira Endo

IPC分类号： F04D29/08

CPC分类号： F04D29/4206 ,  F04D17/122 ,  F04D29/624

摘要： In a centrifugal compressor, for the purpose of preventing the positions of a diaphragm and a head flange in a radial direction from moving with respect to a casing, suppressing the generation of an unstable fluid force in a seal and the contact of the seal with a rotor to prevent the unstable vibration of the rotor and enabling an efficient and stable operation even on high-pressure conditions, there is provided a barrel-shaped centrifugal compressor including a casing, a diaphragm located in the casing to define a flow channel, and a head flange attached to the end of the casing by a shear key, wherein in the inner peripheral surface of the casing and the outer peripheral surface of abutment portions of the diaphragm and the head flange in which they are abutted on the inner peripheral surface of the casing, sliding key grooves which are vertical to the surfaces are provided at least two portions in a peripheral direction, and sliding keys are provided in the key grooves.

摘要翻译： 在离心压缩机中，为了防止膜片和头部凸缘在径向上的位置相对于壳体移动的目的，抑制密封件中不稳定的流体力的产生以及密封件与密封件的接触 转子，以防止转子的不稳定振动，并且即使在高压条件下也能够有效且稳定地操作，提供了一种桶形离心式压缩机，其包括壳体，位于壳体中的隔膜以限定流动通道，以及 头部凸缘通过剪切键附接到壳体的端部，其中在壳体的内周表面和膜片的邻接部分的外周表面和头部凸缘之间，其中它们抵靠在壳体的内周表面上 壳体，与表面垂直的滑动键槽在周向方向上设置有至少两个部分，并且滑动键设置在键槽中。

公开(公告)号：US20100034646A1

公开(公告)日：2010-02-11

申请号：US12534407

申请日：2009-08-03

申请人： Yohei MAGARA ,  Kazuyuki YAMAGUCHI ,  Tetsuya KUWANO ,  Haruo MIURA ,  Naohiko TAKAHASHI

发明人： Yohei MAGARA ,  Kazuyuki YAMAGUCHI ,  Tetsuya KUWANO ,  Haruo MIURA ,  Naohiko TAKAHASHI

IPC分类号： F04D29/08

CPC分类号： F04D29/102 ,  F04D29/0516 ,  F16J15/4472

摘要： The present invention provides a centrifugal compressor that inhibits possible leakage while reducing a destabilizing fluid force generated in a seal to prevent the possible instable vibration of a rotor. The centrifugal compressor includes a casing, a rotor rotatably installed in the casing and having an impeller, and seals provided in the clearance between the casing and the rotor to prevent a fluid from leaking through the clearance from a high pressure side to a low pressure side. The rotor rotates to compress gas. For example, the balance piston seal is composed of a damper seal with a plurality of holes and a labyrinth seal with an annular parallel groove; the damper seal and the labyrinth seal are continuously provided. The damper seal is disposed on the high pressure side in a leakage flow direction. The labyrinth seal is disposed on the low pressure side in the leakage flow direction.

摘要翻译： 本发明提供一种离心压缩机，其抑制可能的泄漏，同时减少在密封件中产生的不稳定的流体力，以防止转子可能的不稳定的振动。 离心压缩机包括壳体，可旋转地安装在壳体中并具有叶轮的转子和设置在壳体和转子之间的间隙中的密封件，以防止流体从间隙从高压侧泄漏到低压侧 。 转子旋转以压缩气体。 例如，平衡活塞密封件由具有多个孔的阻尼器密封件和具有环形平行槽的迷宫式密封件组成; 阻尼器密封件和迷宫式密封件被连续地设置。 阻尼器密封件在泄漏流动方向上设置在高压侧。 迷宫式密封件沿泄漏流动方向设置在低压侧。