公开(公告)号：US20240266081A1

公开(公告)日：2024-08-08

申请号：US18596693

申请日：2024-03-06

申请人： SMR Inventec, LLC

发明人： Krishna P. SINGH ,  P. Stefan Anton ,  Peter Stefanovic ,  Patrick Ingravallo ,  Leyland Vann ,  Joseph Gerald Leo Rajkumar ,  Indresh Rampall

IPC分类号： G21C7/12 ,  G21C7/10 ,  G21C7/117 ,  G21C9/004 ,  G21C13/02 ,  G21C15/12 ,  G21C15/18 ,  G21C19/10 ,  G21D1/00

CPC分类号： G21C7/12 ,  G21C7/10 ,  G21C7/117 ,  G21C9/004 ,  G21C13/02 ,  G21C15/12 ,  G21C15/18 ,  G21C19/10 ,  G21D1/00 ,  G21D1/006 ,  Y02E30/30

摘要： Portable nuclear fuel cartridge comprising a unitary support structure and plurality of nuclear fuel assemblies that collectively form a nuclear fuel core. Control rod drive system for a nuclear reactor. A nuclear steam supply system having a shutdown system for removing residual decay heat generated by a nuclear fuel core. A nuclear reactor including a cylindrical body having an internal cavity, nuclear fuel core, and a shroud disposed in the cavity. A nuclear reactor cooling system with passive cooling capabilities operable during a loss-of-coolant accident (LOCA) without available electric power.

公开(公告)号：US20230170103A1

公开(公告)日：2023-06-01

申请号：US18096008

申请日：2023-01-11

申请人： Framatome Inc.

发明人： Wade Markham ,  Ryan Melcher

IPC分类号： G21C17/017 ,  G21C7/10 ,  G21C13/036 ,  G21C19/20

CPC分类号： G21C17/017 ,  G21C7/10 ,  G21C13/036 ,  G21C19/207

摘要： A method for restraining a sleeve lining a tube passing through a nuclear reactor pressure vessel is provided. The method includes attaching in situ a radial protrusion on an external surface of the sleeve; and attaching a collar to an end of the tube and coupling the radial protrusion with the collar to retain the thermal sleeve in position.

公开(公告)号：US20170167005A1

公开(公告)日：2017-06-15

申请号：US15324047

申请日：2015-03-18

申请人： HITACHI, LTD.

发明人： Takahiro ISHIZAKI ,  Junya KANEDA

IPC分类号： C22C38/50 ,  B22F3/24 ,  B22F1/00 ,  G21C7/10 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B22F3/15 ,  C22C38/48

CPC分类号： C22C38/50 ,  B22F1/00 ,  B22F1/0011 ,  B22F3/15 ,  B22F3/24 ,  B22F2003/247 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/48 ,  G21C7/10 ,  G21D1/00

摘要： An object of the present invention is to provide austenitic stainless steel having a high strength and high corrosion resistance while improving resistance to irradiation and reducing irradiation-induced stress corrosion cracking. A solution is as follows. Austenitic stainless steel of the present invention contains Cr: 16 to 26%, Ni: 8 to 22%, O: 0.02 to 0.4%, C: 0.08% or less, and N: 0.1% or less by weight, and further contains at least one kind of Zr: 0.2 to 2.8%, Ta: 0.4 to 5. 0%, and Ti: 0.2 to 2.6%, the balance being Fe and unavoidable impurities, wherein Zr, Ta, and Ti are precipitated as precipitates of one or more kinds of oxide particles, carbide particles, nitride particles, and composite particles thereof.

公开(公告)号：US09666319B2

公开(公告)日：2017-05-30

申请号：US14903509

申请日：2014-07-08

申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Joel Godlewski ,  Olivier Gastaldi ,  Bruno Pelisset ,  Arnaud Leclerc ,  Gwendal Blevin

IPC分类号： G21F9/30 ,  G21C21/18 ,  G21F9/28 ,  G21C7/10

CPC分类号： G21F9/30 ,  G21C7/10 ,  G21C21/18 ,  G21F9/28 ,  Y02E30/39

摘要： Disclosed is a method for treating an absorber pin, wherein the pin comprises a cladding in which a sintered boron carbide-based material having cracks is located, the material having porosity less than 1% of the volume of the material, the cracks containing sodium and at least one radioactive material. The method includes contacting the material with a treatment reaction mixture including carbon dioxide and water, in such a manner that the production of sodium carbonate and the expansion thereof cause the opening of cracks and of the sheath from at least one slit provided in the sheath as well as the propagation of the treatment process within the material. The process overcomes the physical-chemical properties of a sintered boron carbide-based material as much as possible. These properties prevent an easy treatment of the sodium and radioactive material contained in the cracks of the material.

公开(公告)号：US09406406B2

公开(公告)日：2016-08-02

申请号：US13316826

申请日：2011-12-12

申请人： Salim N. Jahshan

发明人： Salim N. Jahshan

IPC分类号： G21C7/00 ,  G21C7/10 ,  G21C7/117 ,  G21C1/32

CPC分类号： G21C7/10 ,  G21C1/322 ,  G21C7/117 ,  Y02E30/39

摘要： A control rod is used to control the reaction of a nuclear reactor. The control rod comprises one or more internal rodlet(s) and a hafnium skin that serves as the outermost layer, rather than a stainless steel cladding. Several variations on rodlets are contemplated. The rodlets are made of hafnium or Ag—In—Cd. The resulting control rod, due to the lack of a stainless steel cladding, has a greater rod reactivity worth, increased weight, and high flexibility.

摘要翻译： 控制杆用于控制核反应堆的反应。 控制棒包括一个或多个内部的小棒和用作最外层的铪皮，而不是不锈钢包层。 设想了几个变种。 小穗由铪或Ag-In-Cd制成。 由于缺少不锈钢包层，所得到的控制棒具有更大的棒反应性，重量增加和高柔性。

公开(公告)号：US09329019B2

公开(公告)日：2016-05-03

申请号：US14021450

申请日：2013-09-09

申请人： AREVA GMBH

发明人： Markus Reymann ,  Naeel Muhamad Ali

IPC分类号： G01B7/14 ,  G01B7/30 ,  G01B7/00 ,  G01D5/20 ,  G01D5/251 ,  G21C7/10 ,  G21C17/10 ,  G01R33/04

CPC分类号： G01B7/003 ,  G01D5/2013 ,  G01D5/2515 ,  G01R33/04 ,  G21C7/10 ,  G21C17/10 ,  Y02E30/39

摘要： An apparatus for detecting a magnetically conductive object in a detection area has an electrical coil and at least one sensor element. The apparatus is intended to be as free of degradation processes as possible and thus requires little maintenance and is configured and set up with the highest possible degree of redundancy and measurement reliability. For this purpose, the coil is set up to form a magnetic field in the detection area and the sensor element is configured to detect a magnetic field with a field strength, the magnitude of which is greater than a predefined threshold value. The threshold value is set to be higher than the field strength present in the detection area when the magnetically conductive object is absent and lower than the field strength present therein when the object is present.

摘要翻译： 用于在检测区域中检测导磁物体的装置具有电线圈和至少一个传感器元件。 该设备旨在尽可能地没有劣化处理，因此几乎不需要维护，并且配置和设置具有尽可能高的冗余度和测量可靠性。 为此，线圈被设置成在检测区域中形成磁场，并且传感器元件被配置为以强度大于预定阈值的场强检测磁场。 当存在导磁体时，阈值被设定为高于存在于检测区域中的场强，并且当存在物体时，阈值低于存在于其中的场强。

公开(公告)号：US20130335181A1

公开(公告)日：2013-12-19

申请号：US13950943

申请日：2013-07-25

申请人： Korea Hydro & Nuclear Power Co., Ltd.

发明人： Yang Jo Choi ,  Young Ho Jang ,  Jae Gon Lee

IPC分类号： H01F27/02 ,  H01F41/12

CPC分类号： H01F27/022 ,  G21C7/10 ,  G21C7/12 ,  G21C21/18 ,  H01F5/06 ,  H01F27/327 ,  H01F41/127 ,  Y02E30/39

摘要： Provided is a coil assembly having improved heat resistance for use in a control rod driver, in which the heat resistance of coils is improved to increase the lifespan thereof and the deterioration of the coils and the fall of a control rod are thus securely prevented from occurring due to continuous operations of the control rod driver during an automatic load follow operation, thereby improving the safety and economic feasibility of a nuclear power plant, and a method for manufacturing the same. The coil assembly includes a covered wire (110) which includes a coil wire (111) and a polyether ether ketone (PEEK) coating layer (112) covering an outer circumferential surface of the coil wire (111) and is wound in multiple layers; a coil coating layer (130) formed by filling gaps in the covered wire (110) with varnish; an insulating tape layer (120) covering external sides of a wound layer of the covered wire (110) insulated by the coil coating layer (130); and silicon molding (140) covering external sides of the insulating tape layer (120).

摘要翻译： 提供了一种线圈组件，其具有改进的用于控制杆驱动器中的耐热性，其中改善了线圈的耐热性以增加其寿命，并且因此可靠地防止了线圈的劣化和控制杆的下降发生 由于在自动加载跟随操作期间控制杆驱动器的连续操作，从而提高核电站的安全性和经济可行性及其制造方法。 线圈组件包括：包覆线（110），其包括覆盖线圈线（111）的外周面的线圈线（111）和聚醚醚酮（PEEK）涂层（112），并且被多层缠绕; 通过用清漆填充包线（110）中的间隙而形成的线圈涂层（130） 绝缘带层（120），其覆盖由所述线圈涂层（130）绝缘的所述包线（110）的卷绕层的外侧; 以及覆盖绝缘带层（120）的外侧的硅成型（140）。

公开(公告)号：US20130329847A1

公开(公告)日：2013-12-12

申请号：US13490494

申请日：2012-06-07

申请人： Jeffrey M. McCarty ,  Leo J. Fanning

发明人： Jeffrey M. McCarty ,  Leo J. Fanning

IPC分类号： G21C7/14

CPC分类号： G21C7/117 ,  G21C7/10 ,  G21C7/11 ,  G21C21/18 ,  Y02E30/39

摘要： A rod cluster control assembly having a control rod upper end plug formed in two parts and connected together with a flexible joint coupling located at or below a connecting finger on a spider vane. The upper portion of the upper control rod end plug is screwed into the connecting finger on the spider vane and lock welded between a lower portion of the finger and a shoulder on an abutting ledge of the upper portion of the end plug.

摘要翻译： 一种杆群控制组件，其具有形成为两部分的控制杆上端塞，并且与位于连接手指上或下方的柔性接头联接件连接在一个叶片上。 上部控制杆端塞的上部被螺纹连接在叶片上的连接指状件中，并且锁在焊接在手指的下部与端塞的上部的邻接凸缘之间的肩部之间。

公开(公告)号：US20130294566A1

公开(公告)日：2013-11-07

申请号：US13864780

申请日：2013-04-17

申请人： Electric Power Research Institute, Inc.

发明人： David W. Gandy ,  Greg Frederick

IPC分类号： G21C7/10

CPC分类号： G21C7/10 ,  G21C7/12 ,  G21C13/036 ,  Y02E30/40

摘要： A control rod drive (CRD) tube, its manufacture, and installation in a pressurized water reactor (PWR) is disclosed. The control rod drive tube includes a tube body adapted to penetrate an aperture in the RPV head and an offset flange formed around a circumference of the tube body at a predetermined location along its length. The offset flange increases circumferentially from a first point along the circumference of the tube body to a second point along the circumference of the tube body.

摘要翻译： 公开了一种控制棒驱动（CRD）管，其制造和安装在压水反应堆（PWR）中。 控制棒驱动管包括适于穿透RPV头中的孔的管体和沿其长度的预定位置处围绕管体的圆周形成的偏移凸缘。 偏移凸缘从沿着管体的圆周的第一点周向地增加到沿着管体的圆周的第二点。

公开(公告)号：US20130016803A1

公开(公告)日：2013-01-17

申请号：US13533145

申请日：2012-06-26

申请人： Dennis S. Nelson

发明人： Dennis S. Nelson

IPC分类号： G21C7/00

CPC分类号： G21C7/10 ,  G21C7/113 ,  G21C7/12 ,  G21C19/10 ,  G21C19/11 ,  Y02E30/31 ,  Y02E30/39

摘要： An apparatus or system that may incorporate a single component to connect the control rod blade to the control rod drive system (CRD) of a Nordic-type of BWR. The apparatus or system may eliminate the need of using multiple components to connect the control rod blade with the CRD.

摘要翻译： 可以结合单个部件以将控制杆刀片连接到北欧型BWR的控制棒驱动系统（CRD）的装置或系统。 该装置或系统可以消除使用多个部件来将控制杆刀片与CRD连接的需要。