公开(公告)号：US08408873B2

公开(公告)日：2013-04-02

申请号：US12018527

申请日：2008-01-23

申请人： Masaaki Iwasa ,  Takeshi Tsukamoto ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Ryujiro Udo

发明人： Masaaki Iwasa ,  Takeshi Tsukamoto ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Ryujiro Udo

IPC分类号： F01D5/20 ,  F04D29/30

CPC分类号： B23K26/24 ,  B23K26/206 ,  B23K33/00 ,  B23K2101/001 ,  F01D5/3061 ,  F04D29/026 ,  F04D29/2222 ,  F05D2230/234 ,  F05D2230/237 ,  F05D2230/64 ,  F05D2300/43 ,  F05D2300/603 ,  Y10T29/49336 ,  Y10T29/49968

摘要： Blades are connected to the surface of a disk and slots are formed in the surface of a shroud, which is opposite from the other surface of the shroud where the blades are to be welded. The blades are arranged on the opposite surface from the slots and a laser beam is applied from the surface in which the slots are formed, to weld the shroud and the blades. Components are installed on the surfaces of the slots on the opposite side from the blades after the blades and the shroud in which the slots are formed are welded. Alternatively, the slots are filled with a material different from that of the shroud, such as a resin. With this configuration, distortion caused by welding heat can be reduced without degrading the fluid performance.

摘要翻译： 叶片连接到盘的表面，并且槽形成在护罩的表面中，护罩的表面与待焊接的刀片的护罩的另一个表面相对。 刀片设置在与槽相反的表面上，并且从其中形成槽的表面施加激光束以焊接护罩和刀片。 组件安装在与叶片相对侧的槽的表面上，在叶片和形成有槽的护罩之间被焊接。 或者，槽被填充有与护罩不同的材料，例如树脂。 利用这种结构，可以降低焊接热引起的变形，而不降低流体性能。

公开(公告)号：US06802689B2

公开(公告)日：2004-10-12

申请号：US10233536

申请日：2002-09-04

申请人： Hideto Nogiwa

发明人： Hideto Nogiwa

IPC分类号： F01D1700

CPC分类号： F04D27/0292 ,  F04D29/122 ,  F05D2270/101

摘要： Abnormality in an amount of a working gas leaked from between a rotating ring adapted to rotate with a rotor and a stationary ring of a turbo fluid machine is detected by a pressure switch and a flow meter, which are provided in a primary seal vent line, the working gas leaking from sealing surfaces of the labyrinth seal and the secondary dry gas seal, together with a purge gas purged to the space from outside is discharged outside the machine from a flow passage via a space. When abnormality generates in the secondary dry gas seal, a control valve provided in the purge gas line operates to secure a flow rate in the purge gas line, so that a flow rate detected by the flow meter provided in the purge gas line increases, and thus abnormality in the secondary dry gas seal is detected.

摘要翻译： 由适于与转子旋转的旋转环和涡轮流体机械的静止环之间的工作气体的泄漏量的异常通过设置在主密封排气管线中的压力开关和流量计来检测， 从迷宫式密封件和二次干燥气体密封件的密封表面泄漏的工作气体以及从外部吹扫到空间的吹扫气体经由空间从流动通道排出机器外部。 当在二次干燥气体密封件中产生异常时，设置在净化气体管线中的控制阀用于确保吹扫气体管线中的流量，使得由吹扫气体管线中设置的流量计检测到的流量增加， 因此检测到二次干燥气体密封件的异常。

公开(公告)号：US20080237195A1

公开(公告)日：2008-10-02

申请号：US12018527

申请日：2008-01-23

申请人： Masaaki Iwasa ,  Takeshi Tsukamoto ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Ryujiro Udo

发明人： Masaaki Iwasa ,  Takeshi Tsukamoto ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Ryujiro Udo

IPC分类号： F01D5/20 ,  B23K31/02

CPC分类号： B23K26/24 ,  B23K26/206 ,  B23K33/00 ,  B23K2101/001 ,  F01D5/3061 ,  F04D29/026 ,  F04D29/2222 ,  F05D2230/234 ,  F05D2230/237 ,  F05D2230/64 ,  F05D2300/43 ,  F05D2300/603 ,  Y10T29/49336 ,  Y10T29/49968

摘要： Blades are connected to the surface of a disk and slots are formed in the surface of a shroud, which is opposite from the other surface of the shroud where the blades are to be welded. The blades are arranged on the opposite surface from the slots and a laser beam is applied from the surface in which the slots are formed, to weld the shroud and the blades. If powder is melted and put in the slots formed for welding in the shroud to fill the slots, thermal distortion occurs. On the other hand, if the slots are left empty, a problem of degrading the fluid performance arises. To solve these problems, components are installed on the surfaces of the slots on the opposite side from the blades after the blades and the shroud in which the slots are formed are welded. Alternatively, the slots are filled with a material different from that of the shroud, such as a resin. With this configuration, distortion caused by welding heat can be reduced without degrading the fluid performance. This method can be applied to the case where the blades are formed on the surface of the shroud, not on the surface of the disk, and to the slots formed in the disk after the blades and the disk are laser-welded.

摘要翻译： 叶片连接到盘的表面，并且槽形成在护罩的表面中，护罩的表面与待焊接的刀片的护罩的另一个表面相对。 刀片设置在与槽相反的表面上，并且从其中形成槽的表面施加激光束以焊接护罩和刀片。 如果粉末熔化并放入形成为用于在护罩中焊接的槽以填充槽，则发生热变形。 另一方面，如果槽是空的，则出现降低流体性能的问题。 为了解决这些问题，在叶片和其中形成有狭槽的护罩焊接之后，将部件安装在与叶片相对侧上的槽的表面上。 或者，槽被填充有与护罩不同的材料，例如树脂。 利用这种结构，可以降低焊接热引起的变形，而不降低流体性能。 该方法可以应用于在叶片和盘被激光焊接之后叶片形成在护罩的表面上而不是在盘的表面上的情况下以及形成在盘中的槽。

公开(公告)号：US06524059B1

公开(公告)日：2003-02-25

申请号：US09508248

申请日：2000-03-09

申请人： Hideto Nogiwa

发明人： Hideto Nogiwa

IPC分类号： F01D1700

CPC分类号： F16J15/004 ,  F01D11/04 ,  F01D11/06 ,  F04D27/0292 ,  F04D29/124 ,  F05D2240/55 ,  F05D2260/6022 ,  F05D2270/301 ,  F16J15/3484 ,  F16J15/3492

摘要： With a turbo type fluid machine provided with a primary dry gas seal (9) and a secondary dry gas seal (10), abnormality in an amount of a working gas leaked from between a rotating ring (7a, 7b) adapted to rotate with a rotor (4) and a stationary ring (8a, 8b) is detected by a pressure switch (14) and a flow meter (15), which are provided in a primary seal vent line (12), and meanwhile, the working gas leaking from sealing surfaces (17) of a labyrinth seal (16) and the secondary dry gas seal, together with a purge gas purged to a space (18) from outside is discharged outside the machine from a flow passage (34) via a space (33) when abnormality generates in the secondary dry gas seal, a control valve (19) provided in the purge gas line operates to secure a flow rate in the purge gas line, so that a flow rate detected by the flow meter provided in the purge gas line increases, and thus abnormality in the secondary dry gas seal is detected.

摘要翻译： 在具有初级干燥气体密封件（9）和二次干燥气体密封件（10）的涡轮型流体机械中，从适于旋转的旋转环（7a，7b）之间的工作气体的量异常 转子（4）和固定环（8a，8b）通过设置在主密封排气管（12）中的压力开关（14）和流量计（15）检测，同时工作气体泄漏 从迷宫式密封件（16）的密封表面（17）和次级干燥气体密封件以及从外部吹扫到空间（18）的吹扫气体经由空间（34）从流动通道（34）排出到机器外部 在第二干式气体密封件中产生异常的情况下，设置在净化气体管线中的控制阀（19）用于确保净化气体管线中的流量，从而由设置在净化器中的流量计检测到的流量 气体管线增加，从而检测到二次干燥气体密封件的异常。

公开(公告)号：US20090095719A1

公开(公告)日：2009-04-16

申请号：US12248271

申请日：2008-10-09

申请人： Takeshi TSUKAMOTO ,  Yoshihisa MAEDA ,  Hiromi KOBAYASHI ,  Hideto NOGIWA ,  Tetsuya KUWANO ,  Ryujiro UDO ,  Masaaki IWASA

发明人： Takeshi TSUKAMOTO ,  Yoshihisa MAEDA ,  Hiromi KOBAYASHI ,  Hideto NOGIWA ,  Tetsuya KUWANO ,  Ryujiro UDO ,  Masaaki IWASA

IPC分类号： F01D5/22 ,  B23K26/00

CPC分类号： F04D29/284 ,  B23K26/144 ,  B23K26/244 ,  B23K26/28 ,  B23K33/004 ,  B23K2101/001 ,  F01D5/048 ,  F01D5/3061 ,  F04D29/023 ,  F05D2230/234 ,  Y02T50/673 ,  Y10T29/49316

摘要： A welding method for an impeller having a plurality of blades, a disc and an exterior body including a shroud welded to the plurality of blades, comprising the steps of: a first step for forming a groove having a prescribed depth and a prescribed width toward one of the blades on a surface of the disc or the exterior body, which is opposite to a surface against the blade abuts, emitting laser light toward the bottom of the groove, and performing melt-through bead welding to bond the bottom of the groove to an end of the blade in such a way that a bead formed on the back of the disc or the shroud is curved with an inward depression; and a second step for performing overlaying welding after completion of the first step by supplying a filler metal to a molten zone while the bottom of the groove is scanned with the laser light.

摘要翻译： 一种用于叶轮的焊接方法，所述叶轮具有多个叶片，盘和外部主体，所述叶片和外部主体包括焊接到所述多个叶片的罩体，包括以下步骤：第一步骤，用于形成具有规定深度和规定宽度的槽朝向一个 在与盘片相对的表面上的刀片表面上的刀片邻接，朝向凹槽的底部发射激光，并且进行熔透珠焊接以将槽的底部结合到 叶片的端部以这样的方式使得形成在盘或罩的背面上的胎圈以向内的凹陷弯曲; 以及第二步骤，通过在用激光扫描槽的底部的同时向熔融区域供应填充金属来完成第一步骤之后的覆盖焊接。

公开(公告)号：US06398484B1

公开(公告)日：2002-06-04

申请号：US09508470

申请日：2000-03-10

申请人： Hideaki Orikasa ,  Hideto Nogiwa

发明人： Hideaki Orikasa ,  Hideto Nogiwa

IPC分类号： F04D2904

CPC分类号： F04D29/124

摘要： A shaft seal system prevents working gas in a centrifugal compressor from leaking outside from the compressor. The shaft seal system is of an oil film seal type and located in the compressor in which a plurality of centrifugal impellers are fitted on a single rotary shaft and are adapted to be rotated at a high speed. The system has two kinds of seal rings, that is, an atmospheric side seal ring and a gas side seal ring, which are loosely fitted in a casing in which bearing for rotatably journalling the rotary shaft are incorporated. A sealing sleeve shrinkage-fitted on the rotary shaft is arranged on the inner diameter side of the two kinds of seal rings. The rotary shaft is formed in its center axial part thereof with a bore extending from a suction side end to a position where the oil film seal is arranged, and a plurality of oil feed holes extending through the rotary shaft from the bore to the outer periphery of the rotary shaft. Seal oil is fed from the suction side of the rotary shaft into clearances between the two kinds of seal rings and the sealing sleeve so as to prevent working gas compressed in the centrifugal compressor from leaking outside from the compressor, and to cool the shaft seal which has been heated up to a high temperature by friction heat with the seal oil.

摘要翻译： 轴封系统防止离心式压缩机中的工作气体从压缩机外部泄漏。 轴封系统为油膜密封型，位于压缩机中，多个离心式叶轮安装在单个旋转轴上并适于高速旋转。 该系统具有两个密封环，即大气侧密封环和气体侧密封环，其松动地装配在壳体中，在该壳体中并入有用于可旋转地支承旋转轴的轴承。 在两种密封环的内径侧上设置有收缩安装在旋转轴上的密封套筒。 旋转轴在其中心轴部形成有从吸入侧端部延伸到油膜密封件的位置的孔，以及从该孔向外周延伸穿过该旋转轴的多个供油孔 的旋转轴。 密封油从旋转轴的吸入侧被供给到两种密封环和密封套之间的间隙中，以防止在离心式压缩机中压缩的工作气体从压缩机外部泄漏，并且冷却轴封 通过与密封油的摩擦热被加热到高温。

公开(公告)号：US08426766B2

公开(公告)日：2013-04-23

申请号：US12248271

申请日：2008-10-09

申请人： Takeshi Tsukamoto ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Ryujiro Udo ,  Masaaki Iwasa

发明人： Takeshi Tsukamoto ,  Yoshihisa Maeda ,  Hiromi Kobayashi ,  Hideto Nogiwa ,  Tetsuya Kuwano ,  Ryujiro Udo ,  Masaaki Iwasa

IPC分类号： B23K26/00

CPC分类号： F04D29/284 ,  B23K26/144 ,  B23K26/244 ,  B23K26/28 ,  B23K33/004 ,  B23K2101/001 ,  F01D5/048 ,  F01D5/3061 ,  F04D29/023 ,  F05D2230/234 ,  Y02T50/673 ,  Y10T29/49316

摘要： A welding method for an impeller having a plurality of blades, a disc and an exterior body including a shroud welded to the plurality of blades, comprising the steps of: a first step for forming a groove having a prescribed depth and a prescribed width toward one of the blades on a surface of the disc or the exterior body, which is opposite to a surface against the blade abuts, emitting laser light toward the bottom of the groove, and performing melt-through bead welding to bond the bottom of the groove to an end of the blade in such a way that a bead formed on the back of the disc or the shroud is curved with an inward depression; and a second step for performing overlaying welding after completion of the first step by supplying a filler metal to a molten zone while the bottom of the groove is scanned with the laser light.

摘要翻译： 一种用于叶轮的焊接方法，所述叶轮具有多个叶片，盘和外部主体，所述叶片和外部主体包括焊接到所述多个叶片的罩体，包括以下步骤：第一步骤，用于形成具有规定深度和规定宽度的槽朝向一个 在与盘片相对的表面上的刀片表面上的刀片邻接，朝向凹槽的底部发射激光，并且进行熔透珠焊接以将槽的底部结合到 叶片的端部以这样的方式使得形成在盘或罩的背面上的胎圈以向内的凹陷弯曲; 以及第二步骤，通过在用激光扫描槽的底部的同时向熔融区域供应填充金属来完成第一步骤之后的覆盖焊接。