公开(公告)号：US08637784B2

公开(公告)日：2014-01-28

申请号：US12521657

申请日：2008-01-11

申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

IPC分类号： B23K9/028

CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

公开(公告)号：US20100018687A1

公开(公告)日：2010-01-28

申请号：US12526597

申请日：2008-01-28

申请人： Itaru Muroya ,  Kengo Shimamura ,  Ryoichi Kawakami

发明人： Itaru Muroya ,  Kengo Shimamura ,  Ryoichi Kawakami

IPC分类号： F28F9/013

CPC分类号： F22B37/205 ,  G21D1/00

摘要： The present invention aims to decrease a pressure loss in a tube support plate 200 disposed in a steam generator, and ensure sufficient strength. The tube support plate 200 has many through-holes 100 formed therein for passage of heat transfer tubes 210. The shape of the through-hole 100 is a hexagonal shape. Protrusions 100a, 100b, 100c are formed in alternate sides 102, 104, 106 among the sides constituting the hexagonal shape. The arrangement of the through-holes 100 is a so-called honeycomb arrangement. Thus, the opening area of the through-hole 100 can be rendered large to decrease a pressure loss, and the strength of the tube support plate can be ensured.

摘要翻译： 本发明旨在减少设置在蒸汽发生器中的管支撑板200中的压力损失，并确保足够的强度。 管支撑板200具有形成在其中的多个通孔100，用于通过传热管210.通孔100的形状为六边形。 突起100a，100b，100c形成在构成六边形形状的侧面中的交替侧面102,104,106中。 通孔100的布置是所谓的蜂窝结构。 因此，可以使通孔100的开口面积大，降低压力损失，能够确保管支承板的强度。

公开(公告)号：US08640337B2

公开(公告)日：2014-02-04

申请号：US12307043

申请日：2007-07-06

申请人： Itaru Muroya ,  Yoichi Iwamoto ,  Hisanori Watanabe

发明人： Itaru Muroya ,  Yoichi Iwamoto ,  Hisanori Watanabe

IPC分类号： B21D39/10

CPC分类号： F28F9/16 ,  B21D39/06 ,  B21D39/10

摘要： A pipe expansion method capable of reducing an inspection range (area) of a heat-transfer pipe secured to a pipe plate and capable of shortening the time required for inspection is provided. In a pipe expansion method for securing a heat-transfer pipe inserted in a pipe hole of a pipe plate by expanding the pipe, after tightly fitting an outer circumferential surface of the heat-transfer pipe to an inner circumferential surface of the pipe hole from a primary-side end face to a secondary-side end face of the pipe plate, surface pressure between the heat-transfer pipe and the pipe plate is further increased in a predetermined range from the secondary-side end face, or close to the secondary-side end face, towards the primary-side end face.

摘要翻译： 提供一种能够减少固定在管板上的导热管的检查范围（面积）并能够缩短检查所需的时间的管道膨胀法。 在通过膨胀管固定插入管板的管孔中的传热管的管道膨胀方法中，在将传热管的外周面从管孔的内周面紧密地配合到管孔的内周面之后， 一次侧端面到管板的次级侧端面，传热管与管板之间的表面压力从次级侧端面或接近次级侧端面的预定范围进一步增大， 侧端面朝向初级侧端面。

公开(公告)号：US20100326974A1

公开(公告)日：2010-12-30

申请号：US12521657

申请日：2008-01-11

申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

IPC分类号： B23K26/02

CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

公开(公告)号：US20140014295A1

公开(公告)日：2014-01-16

申请号：US14006019

申请日：2012-06-21

申请人： Ryuichi Umehara ,  Masatsugu Monde ,  Ryoichi Kawakami ,  Tomoya Nakagawa ,  Kazuo Hirota ,  Yoichi Iwamoto ,  Itaru Muroya

发明人： Ryuichi Umehara ,  Masatsugu Monde ,  Ryoichi Kawakami ,  Tomoya Nakagawa ,  Kazuo Hirota ,  Yoichi Iwamoto ,  Itaru Muroya

IPC分类号： F22B37/20 ,  F28D1/047

CPC分类号： F22B37/206 ,  F22B1/025 ,  F28D1/0475 ,  F28D7/1638 ,  F28D2021/0054 ,  F28D2021/0064 ,  F28F9/013 ,  F28F2225/04 ,  F28F2265/00 ,  F28F2265/30

摘要： A steam generator includes: an annular member (21) that surrounds a U-bent portion (18) obtained by collectively disposing bent portions of a plurality of heat transfer tubes and is provided between an outer peripheral portion of the U-bent portion (18) and a tube bundle shroud (3) surrounding the outer peripheral portion so as to have a predetermined gap with respect to the U-bent portion (18); a second support member (22) that is provided between the annular member (21) and the tube bundle shroud (3); and a third support member (23) that is attached to a cylinder portion (2) accommodating a plurality of heat transfer tubes and supports the second support member (22).

摘要翻译： 蒸汽发生器包括：围绕通过共同设置多个传热管的弯曲部分而获得的U形弯曲部分（18）的环形构件（21），并且设置在U形弯曲部分（18）的外周部分 ）和围绕所述外周部分以相对于所述U形弯曲部分（18）具有预定间隙的管束护罩（3）; 设置在环状构件（21）和管束罩（3）之间的第二支撑构件（22）; 以及附接到容纳多个传热管并且支撑所述第二支撑构件（22）的筒部（2）的第三支撑构件（23）。

公开(公告)号：US20090302012A1

公开(公告)日：2009-12-10

申请号：US12295823

申请日：2007-03-29

申请人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

发明人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

IPC分类号： B23K26/20

CPC分类号： C21D1/30 ,  B23K26/0626 ,  B23K26/0823 ,  B23K2101/06 ,  C21D1/34 ,  C21D9/08 ,  C21D9/50

摘要： An object is to provide a method and a system for improving a residual stress in a tube body, with which the residual stress can reliably be improved without heating excessively. From an irradiation start angle θs to a first predetermined angle θ1 on the tube body, an intensity of a laser beam is gradually increased from 0.5 to the steady output of 1.0 output ratio; from the first predetermined angle θ1 to a second predetermined angle θ2, the intensity of the laser beam is set at 1.0 output ratio; from the second predetermined angle θ2 to an irradiation end angle θe, the intensity of the laser beam is gradually decreased from the 1.0 output ratio to 0.5; and at the irradiation end angle θe, the intensity of the laser beam is set to 0. All these steps are performed at one turn of rotation in the method and the system for improving residual stress in the tube body.

摘要翻译： 本发明的目的是提供一种用于改善管体中的残余应力的方法和系统，通过该方法和系统可以可靠地改善残余应力而不会过度加热。 从照射起始角度到管体上的第一预定角度θ1，激光束的强度从0.5逐渐增加到1.0的输出比的稳定输出; 从第一预定角度θ1到第二预定角度θ2，将激光束的强度设定为1.0的输出比; 从第二预定角度θ2到照射端角θe，激光束的强度从1.0的输出比逐渐减小到0.5; 并且在照射端角θe处，激光束的强度被设定为0.所有这些步骤都是在该方法中的一圈旋转和用于改善管体中的残余应力的系统中进行的。

公开(公告)号：US20090199402A1

公开(公告)日：2009-08-13

申请号：US12307043

申请日：2007-07-06

申请人： Itaru Muroya ,  Yoichi Iwamoto ,  Hisanori Watanabe

发明人： Itaru Muroya ,  Yoichi Iwamoto ,  Hisanori Watanabe

IPC分类号： B21D39/08

CPC分类号： F28F9/16 ,  B21D39/06 ,  B21D39/10

摘要： A pipe expansion method capable of reducing an inspection range (area) of a heat-transfer pipe secured to a pipe plate and capable of shortening the time required for inspection is provided. In a pipe expansion method for securing a heat-transfer pipe inserted in a pipe hole of a pipe plate by expanding the pipe, after tightly fitting an outer circumferential surface of the heat-transfer pipe to an inner circumferential surface of the pipe hole from a primary-side end face to a secondary-side end face of the pipe plate, surface pressure between the heat-transfer pipe and the pipe plate is further increased in a predetermined range from the secondary-side end face, or close to the secondary-side end face, towards the primary-side end face.

摘要翻译： 提供一种能够减少固定在管板上的导热管的检查范围（面积）并能够缩短检查所需的时间的管道膨胀法。 在通过膨胀管固定插入管板的管孔中的传热管的管道膨胀方法中，在将传热管的外周面从管孔的内周面紧密地配合到管孔的内周面之后， 一次侧端面到管板的次级侧端面，传热管和管板之间的表面压力从次级侧端面或接近次级侧端面的预定范围进一步增大， 侧端面朝向初级侧端面。