公开(公告)号：US20120067139A1

公开(公告)日：2012-03-22

申请号：US13321376

申请日：2010-05-05

Applicant: Kjell Pernestål

Inventor： Kjell Pernestål

IPC: G01L3/14

CPC classification number: G01B7/14 ,  G01B7/148 ,  G01B21/16 ,  G01L5/24 ,  G01M13/021 ,  G21C7/10 ,  G21C17/00

Abstract: The invention relates to a method of evaluating the play between two threaded components, a first component comprising an internal thread, and a second component comprising an external thread that corresponds to the internal thread of the first component, the components are engaged with each other the method comprising the steps of: applying a torque from a motor to said components such that a first side of the internal thread is in contact with an opposing first side of the external thread wherein the two components are mutually rotated, which mutual rotation yields a mutual translation movement of the two threaded components; fixing the components with respect to each other, such that no mutual translation movement is allowed, whereas mutual rotation is still allowed; withholding the applied torque to one of said components, until a second side of the internal thread is in contact with an opposing second side of the external thread, monitoring the applied torque during the above steps by determining the power input to the motor and the rotational speed of the motor in order to identify a first point in time when the first side of the internal tread loses contact with the opposing first side of the external tread and a second point in time when the second side of the internal tread meets the opposing second side of external tread, calculating from the identification of the first and second points in time a play (a) between the internal tread and the external tread evaluating the play (a) by comparing the play (a) with a reference play. The invention further relates to an evaluation system for evaluating the play between the two threaded components.

Abstract translation: 本发明涉及一种评估两个螺纹部件之间的间隙的方法，包括内螺纹的第一部件和包括对应于第一部件的内螺纹的外螺纹的第二部件，部件彼此接合 方法包括以下步骤：将来自电动机的扭矩施加到所述部件，使得内螺纹的第一侧与外螺纹的相对的第一侧接触，其中两个部件相互旋转，该相互旋转产生相互的 两个螺纹部件的平移运动; 相对于彼此固定组件，使得不允许相互平移运动，而仍允许相互旋转; 将所施加的扭矩保持在所述部件之一中，直到内螺纹的第二侧与外螺纹的相对的第二侧接触，通过确定输入到马达的功率和转动来监测在上述步骤期间施加的扭矩 电动机的速度，以便识别内胎面的第一侧与外胎面的相对的第一侧面接触的第一时间点，以及当内胎面的第二侧面与相对的第二侧面相接触的第二时间点 通过比较播放（a）与参考游戏，从第一和第二时间点识别内部踏面和外部胎面之间的播放（a）来评估播放（a）。 本发明还涉及一种用于评估两个螺纹部件之间的间隙的评估系统。

公开(公告)号：US20110170652A1

公开(公告)日：2011-07-14

申请号：US12028215

申请日：2008-02-08

Applicant: Michael J. Hone ,  Carroll J. Long, JR. ,  Radu Pomirleanu ,  Mark P. Goldenfield

Inventor： Michael J. Hone ,  Carroll J. Long, JR. ,  Radu Pomirleanu ,  Mark P. Goldenfield

IPC: G21C7/117 ,  G21C3/32

CPC classification number: G21C7/10 ,  G21C7/24 ,  Y02E30/39

Abstract: The present invention provides a gray rod control assembly (GRCA) containing an improved neutron absorber comprised of a porous matrix of refractory metal infused with a neutron absorbing metal or metal alloy for a nuclear reactor. The reactor has a plurality of fuel assemblies, each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug and the improved neutron-absorber disposed within the tubular member. Delta-power of the reactor is improved by the relatively small percentage of neutron absorbing metal infused in the porous matrix of the refractory metal of the neutron absorber and by distributing the neutron absorber in segments among a plurality of rods of the GRCA.

Abstract translation: 本发明提供了一种灰棒控制组件（GRCA），其包含改进的中子吸收器，该中子吸收器包括用于核反应堆注入中子吸收金属或金属合金的难熔金属多孔基体。 反应器具有多个燃料组件，每个燃料组件包括通过基本上横向的支撑栅格以有组织的阵列支撑的许多细长的燃料棒，以及穿过支撑栅格和燃料棒设置的多个导向套管。 GRCA包括构造成在燃料组件的套管内提供控制插入灰棒组件的蜘蛛组件，从而控制由反应器产生的功率速率。 每个灰色杆组件包括细长的管状构件，第一端塞，第二端塞和设置在管状构件内的改进的中子吸收器。 通过在中子吸收器的难熔金属的多孔基体中输入的相对小百分比的中子吸收金属，并且通过在GRCA的多个棒之间分配中子吸收体而将反应器的三角形功率提高。

公开(公告)号：US07873137B2

公开(公告)日：2011-01-18

申请号：US11672782

申请日：2007-02-08

Applicant: Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

Inventor： Toshiyuki Suzuki ,  Koji Matsumoto ,  Kenzo Koizumi ,  Yasushi Tsuboi

IPC: G21C7/00 ,  G21C19/00

CPC classification number: G21C1/02 ,  G21C7/10 ,  G21C7/28 ,  Y02E30/34 ,  Y02E30/39

Abstract: A fast reactor including a reactivity control assembly including a reactor shutdown rod and neutron absorbers, a reactor shutdown rod drive mechanism, and units of neutron absorber drive mechanism. The reactor shutdown rod drive mechanism causes an inner extension tube to fall and release the reactor shutdown rod by a gripper section by turning off the power supply to a holding magnet at the time of scram. When grasping the neutron absorbers, an outer extension shaft is pulled up to allow both of the extension shafts to be inserted. After the outer extension tube gets to a handling head section of the neutron absorber, the outer extension shaft is pushed down to grasp the neutron absorber externally by latch fingers of the gripper section so that the neutron absorber can be moved up and down.

Abstract translation: 一种快速反应器，包括反应性控制组件，其包括反应堆关闭棒和中子吸收剂，反应堆关闭棒驱动机构和中子吸收器驱动机构单元。 反应堆关闭杆驱动机构通过在卡车时断开对保持磁体的电力使得内部延伸管通过夹持部分下落并释放反应堆关闭杆。 当抓住中子吸收器时，拉出外延伸轴以允许两个延伸轴插入。 在外延伸管到达中子吸收器的处理头部分之后，外延伸轴被向下推动以通过夹持器部分的闩锁指向外部抓住中子吸收器，使得中子吸收器能够上下移动。

公开(公告)号：US20100269960A1

公开(公告)日：2010-10-28

申请号：US12809997

申请日：2008-12-15

Applicant: Dominique Hertz

Inventor： Dominique Hertz

IPC: C21D10/00 ,  C22C16/00 ,  C22C28/00

CPC classification number: C21D7/06 ,  C21D10/005 ,  C22C16/00 ,  C22F1/00 ,  G21C3/20 ,  G21C7/10 ,  G21C21/02 ,  G21C21/18 ,  G21Y2002/103 ,  G21Y2004/40 ,  Y02E30/39

Abstract: A method for surface processing at least a portion of a component of zirconium or hafnium alloy, including at least one operation of nanostructuring a surface layer of the alloy so as to confer on the alloy over a thickness of at least 5 μm a grain size which is less than or equal to 100 nm, the nanostructuring being carried out at a temperature which is less than or equal to that of the last thermal processing operation to which the component was previously subjected during its production.Component of zirconium or hafnium alloy processed in this manner.

Abstract translation: 一种表面处理锆或铪合金的组分的至少一部分的方法，包括至少一种使合金的表面层纳米结构化的操作，以使合金的厚度至少为5μm，晶粒尺寸为 小于或等于100nm，纳米结构在小于或等于组件在其生产过程中所经受的最后热处理操作的温度下进行。 以这种方式处理的锆或铪合金的组分。

公开(公告)号：US07460632B2

公开(公告)日：2008-12-02

申请号：US10947507

申请日：2004-09-22

Applicant: Brett T. Matthews

Inventor： Brett T. Matthews

IPC: G21C7/00 ,  G21C11/00

CPC classification number: G21C7/10 ,  G21Y2002/104 ,  G21Y2004/301 ,  Y02E30/39

Abstract: An absorber rod for a nuclear reactor having a rod cladding defining an internal volume, the rod cladding having an upper end and a lower end, an upper end fitting positioned in the upper end of the rod cladding, a rod internal arrangement configured in the internal volume of the rod cladding, an absorber rod lower end cap positioned at the lower end of the rod cladding, the lower end cap having an upper surface and a lower surface, a stack support with a stack support upper end and a stack support lower end, the stack support lower end placed in contact with the upper surface of the lower end cap, the stack support upper end configured to support the rod internal arrangement, and an annulus of material configured around the stack support and contacting the upper surface of the lower end cap.

Abstract translation: 一种用于核反应堆的吸收杆，其具有限定内部体积的棒状包层，所述棒状包层具有上端和下端，位于所述棒状包层的上端中的上端配件，配置在内部的杆内部装置 棒包层的体积，位于杆包层下端的吸收杆下端盖，下端盖具有上表面和下表面，具有堆叠支撑上端的堆叠支架和堆叠支撑下端 ，所述堆叠支撑下端与所述下端盖的上表面接触，所述堆叠支撑上端被构造成支撑所述杆内部布置，以及围绕所述堆叠支撑构造并接触所述下部盖的上表面的材料环 端帽。

公开(公告)号：US07412021B2

公开(公告)日：2008-08-12

申请号：US11189472

申请日：2005-07-26

Applicant: Robert J. Fetterman ,  James A. Sparrow

Inventor： Robert J. Fetterman ,  James A. Sparrow

IPC: G21C7/00

CPC classification number: G21C7/10 ,  G21Y2002/104 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/304 ,  G21Y2004/30 ,  Y02E30/39

Abstract: An advanced gray rod control assembly (GRCA) is for a nuclear reactor. The reactor has a plurality of fuel assemblies each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug, a substantially pure silver neutron-absorber disposed within the tubular member, and a support tube surrounding the neutron-absorber within the tubular member to resist silver-swelling. Delta-power of the reactor is improved by minimizing the exposed surface area of the absorber and distributing it among all of the rods of the GRCA.

Abstract translation: 先进的灰棒控制组件（GRCA）用于核反应堆。 反应器具有多个燃料组件，每个燃料组件包括通过基本上横向的支撑网格以有组织的阵列支撑的许多细长的燃料棒，以及穿过支撑格栅并沿着燃料棒设置的多个导向套管。 GRCA包括构造成在燃料组件的套管内提供控制插入灰棒组件的蜘蛛组件，从而控制由反应器产生的功率速率。 每个灰色杆组件包括细长的管状构件，第一端塞，第二端塞，设置在管状构件内的基本上纯的中子吸收器，以及围绕管状构件内的中子吸收体的支撑管， 肿胀。 通过最小化吸收器的暴露表面积并将其分布在GRCA的所有棒中来改善反应器的三角形功率。

公开(公告)号：US20060062344A1

公开(公告)日：2006-03-23

申请号：US10947507

申请日：2004-09-22

Applicant: Brett Matthews

Inventor： Brett Matthews

IPC: G21C7/00

CPC classification number: G21C7/10 ,  G21Y2002/104 ,  G21Y2004/301 ,  Y02E30/39

Abstract: An absorber rod for a nuclear reactor having a rod cladding defining an internal volume, the rod cladding having an upper end and a lower end, an upper end fitting positioned in the upper end of the rod cladding, a rod internal arrangement configured in the internal volume of the rod cladding, an absorber rod lower end cap positioned at the lower end of the rod cladding, the lower end cap having an upper surface and a lower surface, a stack support with a stack support upper end and a stack support lower end, the stack support lower end placed in contact with the upper surface of the lower end cap, the stack support upper end configured to support the rod internal arrangement, and an annulus of material configured around the stack support and contacting the upper surface of the lower end cap.

Abstract translation: 一种用于核反应堆的吸收杆，其具有限定内部体积的棒状包层，所述棒状包层具有上端和下端，位于所述棒状包层的上端中的上端配件，配置在内部的杆内部装置 棒包层的体积，位于杆包层下端的吸收杆下端盖，下端盖具有上表面和下表面，具有堆叠支撑上端的堆叠支架和堆叠支撑下端 ，所述堆叠支撑下端与所述下端盖的上表面接触，所述堆叠支撑上端被构造成支撑所述杆内部布置，以及围绕所述堆叠支撑构造并接触所述下部盖的上表面的材料环 端帽。

公开(公告)号：US06888908B1

公开(公告)日：2005-05-03

申请号：US10298856

申请日：2002-11-18

Applicant: Richard G. Klarner ,  Jun Tang

Inventor： Richard G. Klarner ,  Jun Tang

IPC: G21C7/14 ,  G21C7/10 ,  G21C13/00 ,  G21C13/02 ,  G21C13/036 ,  G21D1/00

CPC classification number: G21C13/036 ,  G21C7/10 ,  G21C13/02 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2004/30 ,  G21Y2004/305 ,  G21Y2004/40 ,  Y02E30/39

Abstract: A reactor closure head assembly has guide tube nozzles which are integral with the reactor closure head. A dome-shaped forging having a concave surface is prepared with extra thickness equal to or greater than the desired nozzle height. Nozzles having bores therethrough are machined opposite the concave surface. Weld buttering is applied to the ends of the nozzles, the concave surface is clad with a corrosion resistant layer, and the forging is then heat treated. A guide tube flange is attached to the ends of the nozzles. The surfaces of the nozzle bores are covered with a protective layer which is preferably applied without heating, for example by electrochemical deposition, thereby avoiding the need for subsequent post weld heat treatment.

公开(公告)号：US20010033632A1

公开(公告)日：2001-10-25

申请号：US09804091

申请日：2001-03-12

Inventor： Kazuo Murakami ,  Shigemitsu Suzuki ,  Kyohichi Yoshigai

IPC: G21C007/00

CPC classification number: G21C7/10 ,  G21Y2002/104 ,  G21Y2002/303 ,  G21Y2004/303 ,  Y02E30/39

Abstract: A control rod for a nuclear reactor has a structure which is capable of suppressing expansion of a reduced-diameter portion of a neutron absorber in a radial direction under shocks applied upon every stepwise driving of a control rod cluster and which can ensure integrity of a cladding tube over an extended period. The control rod includes a cladding tube closed hermetically at both ends thereof by a top end plug and a bottom end plug, respectively, a neutron absorber loaded into the cladding tube and includes a reduced-diameter portion having a smaller diameter than the other portion, the reduced-diameter portion being disposed at the bottom end plug side of the control rod, and a hold-down spring for pressing the neutron absorber downwardly against the bottom end plug. A sleeve is disposed within an annular space defined between an outer peripheral surface of the reduced-diameter portion and an inner peripheral surface of the cladding tube.

Abstract translation: 用于核反应堆的控制棒具有这样的结构，该结构能够抑制在控制棒簇的每一个逐步驱动时施加的冲击下的中子吸收体的直径减小部分的膨胀，并且可以确保包层的完整性 长时间管。 所述控制棒包括：包层管，其两端分别由顶端塞和底端塞密封，装载到所述包层管中的中子吸收体，并且包括具有比其他部分小的直径的缩径部分， 所述缩径部分设置在所述控制杆的底端塞侧，以及用于将所述中子吸收体向下压靠在所述底端塞上的压紧弹簧。 套筒设置在限定在缩径部的外周面与包层管的内周面之间的环状空间内。

公开(公告)号：US06226340B1

公开(公告)日：2001-05-01

申请号：US08890672

申请日：1997-07-09

Applicant: Michael J. Anderson

Inventor： Michael J. Anderson

IPC: G21C706

CPC classification number: G21C7/10 ,  G21C7/24 ,  G21Y2002/10 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2004/10 ,  G21Y2004/30 ,  Y02E30/31 ,  Y02E30/39

Abstract: A hermaphroditic absorber exploits the inherent spatial change in the neutron spectrum within a lumped poison mass in a thermal reactor neutron flux field. The hermaphroditic absorber (poison mass) incorporates two types of absorbers, the first being a strong thermal absorber near the surface of the mass, and the second being a strong resonant absorber in the interior of the poison mass. The outer regions of the poison mass are comprised of a strong “1/v” thermal absorber, and the inner region of the poison mass is comprised of a resonance absorber. This resonance absorber more appropriately exploits the hardened characteristics of the neutron spectrum within the absorber mass by selectively absorbing the epi-thermal neutrons. The creation of the hermaphroditic poison mass permits an increase in the control material worth while maintaining the external dimension of the structure containing the control material, such as a BWR control rod.

Abstract translation: 雌雄同体吸收器利用热反应堆中子通量场中的集中毒物质中的中子谱的固有空间变化。 雌雄同体吸收剂（毒物质）包含两种类型的吸收剂，第一种是在质量表面附近的强热吸收剂，第二种是在药物内部的强共振吸收剂。 毒物的外部区域由强的“1 / v”热吸收体构成，毒药的内部区域由共振吸收体组成。 该共振吸收器通过选择性地吸收外延热中子，更适当地利用吸收体内的中子谱的硬化特性。 雌雄同体药物的形成允许增加控制材料的价值，同时保持含有控制材料的结构的外部尺寸，例如BWR控制棒。