公开(公告)号：US20160232992A1

公开(公告)日：2016-08-11

申请号：US13585446

申请日：2012-08-14

申请人： Nam-Gyu PARK ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Shin-Ho Lee ,  Kyong-Bo Eom ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Gyu-Cheol Shin ,  Seong-Ki Lee ,  II-Kyu Kim ,  Ki-Sung Choi ,  Kyeong-Lak Jeon

发明人： Nam-Gyu PARK ,  Kyu-Tae Kim ,  Jung-Min Suh ,  Shin-Ho Lee ,  Kyong-Bo Eom ,  Joon-Kyoo Park ,  Jin-Sun Kim ,  Gyu-Cheol Shin ,  Seong-Ki Lee ,  II-Kyu Kim ,  Ki-Sung Choi ,  Kyeong-Lak Jeon

IPC分类号： G21C3/334

CPC分类号： G21C3/3315 ,  G21C3/33 ,  G21C3/334 ,  G21Y2002/302 ,  G21Y2002/304 ,  G21Y2002/402 ,  G21Y2004/301 ,  G21Y2004/50 ,  Y02E30/40

摘要： Disclosed herein is a joint structure between a top nozzle and a guide thimble. The joint structure includes an outer guide post, an inner-extension tube head, an inner-extension tube body, a wedge and the guide thimble. The outer guide post is provided with an external thread formed on a lower end thereof. The inner-extension tube head includes an annular retaining part formed on an upper end thereof. An internal thread is formed on a medial portion of the inner-extension tube head. An external thread is formed on each of upper and lower ends of the inner-extension tube body. A stop protrusion is provided under a lower end of the wedge. The wedge is welded to the inner-extension tube body after the top nozzle has been joined with the guide thimble. A stop protrusion receiving depression is formed in the guide thimble.

摘要翻译： 这里公开了顶部喷嘴和导向套管之间的接合结构。 接头结构包括外引导柱，内延伸管头，内延伸管体，楔形件和导向套管。 外引导件在其下端形成有外螺纹。 内延伸管头包括形成在其上端的环形保持部。 内螺纹形成在内延伸管头的中间部分上。 在内延伸管体的上下两端形成有外螺纹。 在楔的下端设置有止动突起。 在顶部喷嘴与导向套管接合之后，楔形件焊接到内部延伸管体上。 导向套管中形成有止动凸起接收凹部。

公开(公告)号：US08477900B2

公开(公告)日：2013-07-02

申请号：US12748369

申请日：2010-03-26

申请人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

发明人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

IPC分类号： G21C3/32

CPC分类号： G21C3/331 ,  G21C3/3315 ,  Y02E30/40

摘要： A hold-down spring unit for a top nozzle of a nuclear fuel assembly. The hold-down spring unit is coupled to the upper end of the top nozzle of the nuclear fuel assembly. The hold-down spring unit includes a first spring which provides a hold-down force upon the nuclear fuel assembly under start-up conditions and hot full power conditions of a nuclear reactor, and a second spring which provides an additional hold-down force upon the nuclear fuel assembly under start-up conditions of the nuclear reactor. The hold-down margin under start-up conditions and hot full power conditions is reduced, thus enhancing the mechanical and structural stability of the nuclear fuel assembly.

摘要翻译： 用于核燃料组件的顶部喷嘴的压紧弹簧单元。 压紧弹簧单元联接到核燃料组件的顶部喷嘴的上端。 压紧弹簧单元包括第一弹簧，其在核反应堆的启动条件和热全功率条件下向核燃料组件提供压紧力，第二弹簧提供额外的压紧力 核燃料组件在核反应堆的启动条件下。 在启动条件和热全功率条件下的压紧余量减少，从而提高核燃料组件的机械和结构稳定性。

公开(公告)号：US08229055B2

公开(公告)日：2012-07-24

申请号：US11970884

申请日：2008-01-08

申请人： Joon-kyoo Park ,  Joon-hyung Choi ,  Kyu-Tae Kim ,  Jung-min Suh ,  Shin-ho Lee ,  Nam-gyu Park ,  Kyong-bo Eom ,  Jin-sun Kim ,  Jin-seok Lee ,  Seong-ki Lee

发明人： Joon-kyoo Park ,  Joon-hyung Choi ,  Kyu-Tae Kim ,  Jung-min Suh ,  Shin-ho Lee ,  Nam-gyu Park ,  Kyong-bo Eom ,  Jin-sun Kim ,  Jin-seok Lee ,  Seong-ki Lee

IPC分类号： G21C15/00

CPC分类号： G21C3/331 ,  G21C3/3315 ,  Y02E30/40

摘要： The present invention relates to a top nozzle for a nuclear fuel assembly that has a two-stage elastic section such that a pushing force against the axial movement of the nuclear fuel assembly under normal conditions is optimized and at the same time a suppressing force against a drastic uplifting force of the nuclear fuel assembly under transient conditions is strengthened, and that lowers the elastic coefficients of the springs operating under normal conditions more than those of existing coil springs, thereby providing an optimal pushing force against the nuclear fuel assembly.

摘要翻译： 本发明涉及一种用于核燃料组件的顶部喷嘴，其具有两级弹性部分，使得在正常条件下抵抗核燃料组件的轴向运动的推力被优化，并且同时具有抵抗 加强了在瞬态条件下核燃料组件的极大提升力，降低了在正常条件下比现有螺旋弹簧工作的弹簧的弹性系数，从而提供了抵抗核燃料组件的最佳推力。

公开(公告)号：US20110182396A1

公开(公告)日：2011-07-28

申请号：US12749470

申请日：2010-03-29

申请人： NAM GYU PARK ,  Gi-Jun Gwon ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Jin Seok Lee ,  Kyong Bo Eom ,  Joon Kyoo Park ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

发明人： NAM GYU PARK ,  Gi-Jun Gwon ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Jin Seok Lee ,  Kyong Bo Eom ,  Joon Kyoo Park ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

IPC分类号： G21C3/32

CPC分类号： G21C3/32 ,  G21C3/3305 ,  Y02E30/40

摘要： A guide thimble plug for a nuclear fuel assembly is provided, in which an internal threaded hole is formed through a main body so that the main body is coupled to a bottom nozzle by a screw coupling. An upper insert part is formed in the upper end of the main body. The upper insert part is inserted into a shock absorption tube. A thermal deformation prevention part is formed on the main body below the upper insert part and is recessed inward from the outer surface of the main body such that, when the main body is coupled to the guide thimble, a gap is defined between the thermal deformation prevention part and the guide thimble. The guide thimble and the shock absorption tube can be reliably fastened to the bottom nozzle, and thermal deformation of the guide thimble can be minimized.

摘要翻译： 提供了一种用于核燃料组件的导向套筒塞，其中内螺纹孔通过主体形成，使得主体通过螺纹联接件联接到底部喷嘴。 上部插入部分形成在主体的上端。 将上部插入部分插入减震管中。 一个热变形防止部分形成在主体下面的上插入部分上，并且从主体的外表面向内凹入，使得当主体联接到导向套管时，在热变形 预防部分和导向套管。 引导套管和减震管可以可靠地固定到底部喷嘴，并且导引套管的热变形可以最小化。

公开(公告)号：US20110182394A1

公开(公告)日：2011-07-28

申请号：US12748367

申请日：2010-03-26

申请人： JOON KYOO PARK ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

发明人： JOON KYOO PARK ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

IPC分类号： G21C3/02 ,  B21K21/08

CPC分类号： G21C3/331 ,  G21C3/3315 ,  G21C21/00 ,  Y02E30/40 ,  Y10T29/494 ,  Y10T29/49432

摘要： A top nozzle for a nuclear fuel assembly and a method of manufacturing the top nozzle are provided. The top nozzle can include a coupling plate, a perimeter wall and a hold-down spring unit. The coupling plate can be coupled to a guide thimble of the nuclear fuel assembly. The perimeter wall can protrude upwards from the perimeter of the coupling plate. A spring clamp can be provided on the upper surface of the perimeter wall. The hold-down spring unit can be mounted to the upper surface of the perimeter wall in such a way to couple a corresponding end of the hold-down spring unit to the spring clamp. A fastening pin hole can be vertically formed through an upper surface of the spring clamp. A spring insert hole into which the hold-down spring unit can be inserted and formed by electro-discharge machining in an insert direction of the hold-down spring.

摘要翻译： 提供了用于核燃料组件的顶部喷嘴和制造顶部喷嘴的方法。 顶部喷嘴可以包括联接板，周边壁和压紧弹簧单元。 联接板可以联接到核燃料组件的导向套管。 周边壁可以从联接板的周边向上突出。 可以在周壁的上表面上设置弹簧夹。 压紧弹簧单元可以以这样的方式安装到周壁的上表面，以将压紧弹簧单元的相应端部联接到弹簧夹。 紧固销孔可以通过弹簧夹的上表面垂直地形成。 弹簧插入孔，压紧弹簧单元可以通过放电加工在压紧弹簧的插入方向上插入和形成。

公开(公告)号：US20090060116A1

公开(公告)日：2009-03-05

申请号：US11970961

申请日：2008-01-08

申请人： Shin-ho LEE ,  Yoon-ho KIM ,  Kyou-seok LEE ,  Kyu-Tae KIM ,  Jung-min SUH ,  Nam-gyu PARK ,  Kyong-bo EOM ,  Joon-kyoo PARK ,  Jin-sun KIM

发明人： Shin-ho LEE ,  Yoon-ho KIM ,  Kyou-seok LEE ,  Kyu-Tae KIM ,  Jung-min SUH ,  Nam-gyu PARK ,  Kyong-bo EOM ,  Joon-kyoo PARK ,  Jin-sun KIM

IPC分类号： G21C3/06

CPC分类号： G21C3/18 ,  G21C3/02 ,  Y02E30/40

摘要： The present invention relates to a fuel rod of a nuclear fuel assembly having a vase-like compression spring adapted to increase the internal volume thereof wherein when the vase-like compression spring is inserted into a cladding tube, it has a relatively smaller volume occupied inside the fuel rod when compared with the existing coil type compression spring, such that the vase-like compression spring can ensure a sufficient space portion receiving the fission gases generated during the operation of the fuel rod, thereby increasing the burn-up performance of the fuel rod and the mechanical integrity thereof.

摘要翻译： 本发明涉及一种核燃料组件的燃料棒，其具有适于增加其内部体积的花瓶状压缩弹簧，其中当花瓶状压缩弹簧插入到包壳管中时，其内部具有相对较小的体积 燃料棒与现有的线圈型压缩弹簧相比，使得花瓶状压缩弹簧能够确保足够的空间部分接收在燃料棒操作期间产生的裂变气体，从而增加燃料的燃耗性能 杆及其机械完整性。

公开(公告)号：US08483348B2

公开(公告)日：2013-07-09

申请号：US13527788

申请日：2012-06-20

申请人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

发明人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

IPC分类号： G21C1/22 ,  G21C19/28 ,  G21C9/00 ,  G21C23/00 ,  G21C1/04

CPC分类号： G21C3/331 ,  G21C3/3315 ,  Y02E30/40

摘要： A hold-down spring unit for a top nozzle of a nuclear fuel assembly. The hold-down spring unit is coupled to the upper end of the top nozzle of the nuclear fuel assembly. The hold-down spring unit includes a first spring which provides a hold-down force upon the nuclear fuel assembly under start-up conditions or hot full power conditions of a nuclear reactor, and a second spring which provides an additional hold-down force upon the nuclear fuel assembly under start-up conditions of the nuclear reactor. The hold-down margin under start-up conditions or hot full power conditions is reduced, thus enhancing the mechanical and structural stability of the nuclear fuel assembly.

摘要翻译： 用于核燃料组件的顶部喷嘴的压紧弹簧单元。 压紧弹簧单元联接到核燃料组件的顶部喷嘴的上端。 压紧弹簧单元包括第一弹簧，其在核反应堆的启动条件或热全功率条件下向核燃料组件提供压紧力，以及向第二弹簧提供额外的压紧力 核燃料组件在核反应堆的启动条件下。 在启动条件或热全功率条件下的压紧余量减少，从而提高核燃料组件的机械和结构稳定性。

公开(公告)号：US20120246933A1

公开(公告)日：2012-10-04

申请号：US13524254

申请日：2012-06-15

申请人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

发明人： Joon Kyoo Park ,  Jin Seok Lee ,  Kyeong Lak Jeon ,  Jung Min Suh ,  Gi-Jun Gwon ,  Nam Gyu Park ,  Kyong Bo Eom ,  Jin Sun Kim ,  Dong Geun Ha ,  Kyoung Joo Kim

IPC分类号： B23P17/00

CPC分类号： G21C3/331 ,  G21C3/3315 ,  G21C21/00 ,  Y02E30/40 ,  Y10T29/494 ,  Y10T29/49432

摘要： A top nozzle is provided. The top nozzle can include a coupling plate, a perimeter wall and a hold-down spring unit. The coupling plate can be coupled to a guide thimble of the nuclear fuel assembly. The perimeter wall can protrude upwards from the perimeter of the coupling plate. A spring clamp can be provided on the upper surface of the perimeter wall. The hold-down spring unit can be mounted to the upper surface of the perimeter wall in such a way to couple a corresponding end of the hold-down spring unit to the spring clamp. A fastening pin hole can be vertically formed through an upper surface of the spring clamp. A spring insert hole into which the hold-down spring unit can be inserted and formed by electro-discharge machining in an insert direction of the hold-down spring.

摘要翻译： 提供顶部喷嘴。 顶部喷嘴可以包括联接板，周边壁和压紧弹簧单元。 联接板可以联接到核燃料组件的导向套管。 周边壁可以从联接板的周边向上突出。 可以在周壁的上表面上设置弹簧夹。 压紧弹簧单元可以以这样的方式安装到周壁的上表面，以将压紧弹簧单元的相应端部联接到弹簧夹。 紧固销孔可以通过弹簧夹的上表面垂直地形成。 弹簧插入孔，压紧弹簧单元可以通过放电加工在压紧弹簧的插入方向上插入和形成。

公开(公告)号：US07916825B2

公开(公告)日：2011-03-29

申请号：US11970961

申请日：2008-01-08

申请人： Shin-ho Lee ,  Yoon-ho Kim ,  Kyou-seok Lee ,  Kyu-Tae Kim ,  Jung-min Suh ,  Nam-Gyu Park ,  Kyong-bo Eom ,  Joon-kyoo Park ,  Jin-sun Kim

发明人： Shin-ho Lee ,  Yoon-ho Kim ,  Kyou-seok Lee ,  Kyu-Tae Kim ,  Jung-min Suh ,  Nam-Gyu Park ,  Kyong-bo Eom ,  Joon-kyoo Park ,  Jin-sun Kim

IPC分类号： G21C3/00 ,  G21C19/00 ,  F16F1/18 ,  F16F1/20 ,  F16F1/00

CPC分类号： G21C3/18 ,  G21C3/02 ,  Y02E30/40

摘要： The present invention relates to a fuel rod of a nuclear fuel assembly having a vase-like compression spring adapted to increase the internal volume thereof wherein when the vase-like compression spring is inserted into a cladding tube, it has a relatively smaller volume occupied inside the fuel rod when compared with the existing coil type compression spring, such that the vase-like compression spring can ensure a sufficient space portion receiving the fission gases generated during the operation of the fuel rod, thereby increasing the burn-up performance of the fuel rod and the mechanical integrity thereof.

摘要翻译： 本发明涉及一种核燃料组件的燃料棒，其具有适于增加其内部体积的花瓶状压缩弹簧，其中当花瓶状压缩弹簧插入到包壳管中时，其内部具有相对较小的体积 燃料棒与现有的线圈型压缩弹簧相比，使得花瓶状压缩弹簧能够确保足够的空间部分接收在燃料棒操作期间产生的裂变气体，从而增加燃料的燃耗性能 杆及其机械完整性。

公开(公告)号：US07835484B2

公开(公告)日：2010-11-16

申请号：US11971306

申请日：2008-01-09

申请人： Kyong-bo Eom ,  Kyu-Tae Kim ,  Jung-min Suh ,  Shin-ho Lee ,  Nam-Gyu Park ,  Joon-kyoo Park ,  Jin-sun Kim ,  Il-kyu Kim ,  Seong-ki Lee ,  Joon-hyung Choi

发明人： Kyong-bo Eom ,  Kyu-Tae Kim ,  Jung-min Suh ,  Shin-ho Lee ,  Nam-Gyu Park ,  Joon-kyoo Park ,  Jin-sun Kim ,  Il-kyu Kim ,  Seong-ki Lee ,  Joon-hyung Choi

IPC分类号： G21C3/34

CPC分类号： G21C3/352 ,  G21C3/3563 ,  Y02E30/40

摘要： The present invention relates to an anti-fretting wear spacer grid having a plurality of canoe-shaped springs formed thereon, wherein each of the canoe-shaped springs includes: a fuel rod-contacting part having a flat surface having a predetermined longitudinal length so as to have linear contact with the fuel rod; a curved face-connecting part formed on the upper and lower portions of the fuel rod-contacting part; a leg-connecting part formed on the end portion of the curved face-connecting part; and legs each being formed of a plate shape having a predetermined length and connecting the both sides of the leg-connecting part with one unit grid cell surface.

摘要翻译： 本发明涉及一种具有形成在其上的多个独木舟形弹簧的抗微动磨损间隔栅格，其中每个独木舟形弹簧包括：具有预定纵向长度的平坦表面的燃料棒接触部分， 与燃料棒线性接触; 形成在所述燃料棒接触部的上部和下部的弯曲面连接部; 形成在曲面连接部的端部上的腿连接部; 并且每个腿均由具有预定长度的板形形成，并且将腿连接部分的两侧与一个单元格格单元表面相连。