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1. 发明授权

US5544208A Method and apparatus for in situ detection of defective nuclear fuel assembly 失效
标题翻译：用于原位检测有缺陷的核燃料组件的方法和装置
公开(公告)号：US5544208A
公开(公告)日：1996-08-06
申请号：US309383
申请日：1994-09-20
申请人： Hsueh-Wen Pao , David L. Faulstich , Dane T. Snyder , Johnny T. Ma , Kenneth R. Izzo , Joel C. Swanson , Martin S. Laurent , Peter F. Kachel
发明人： Hsueh-Wen Pao , David L. Faulstich , Dane T. Snyder , Johnny T. Ma , Kenneth R. Izzo , Joel C. Swanson , Martin S. Laurent , Peter F. Kachel
IPC分类号： G01N25/18 , B01D15/08 , B01D53/04 , G01N27/18 , G01N30/02 , G01N30/12 , G01N30/62 , G01N30/66 , G01N30/78 , G01T1/167 , G01T7/02 , G21C17/07 , G21C17/00
CPC分类号： G01N30/62 , G21C17/07 , G01N2030/025 , G01N2030/121 , G01N2030/626 , G01N2030/77 , G01N30/66 , G01N30/78 , G21Y2002/202 , G21Y2004/30 , G21Y2004/40
摘要： A process and a system for detecting defective nuclear fuel assemblies in situ. The system includes two basic subsystems. The first subsystem is a sample collection system consisting of a hood placed over the fuel. A technique whereby a vacuum is drawn across a submerged nozzle of a degas tank is used to draw up the sample of fluid out of a fuel assembly. The second subsystem determines the amount of Kr-85 radioisotope contained in the fluid sample. This information is used to determine whether the fuel assembly contains a defective, i.e., leaking, fuel rod. The measurement values for Kr-85 in the fluid sample extracted from the fuel assembly are compared to the measurement values for Kr-85 in fluid samples taken from the reactor pool prior to fuel assembly testing and fluid samples taken from non-leaking control cells, the latter values representing the background to which the subject fuel assembly is compared. Based on this comparison, a determination is made concerning whether the subject fuel assembly is defective.
摘要翻译：一种原位检测有缺陷的核燃料组件的方法和系统。该系统包括两个基本子系统。第一个子系统是一个样品收集系统，包括放置在燃料上的发动机罩。使用通过脱气罐的浸没喷嘴抽取真空的技术来将流体样品从燃料组件中抽出。第二个子系统确定流体样品中所含的Kr-85放射性同位素的量。该信息用于确定燃料组件是否包含有缺陷的，即泄漏的燃料棒。将从燃料组件提取的流体样品中的Kr-85的测量值与在燃料组装测试之前从反应池中获取的流体样品中的Kr-85的测量值和从非泄漏的控制电池获取的流体样品进行比较，后一个值表示对象燃料组件与之比较的背景。基于该比较，确定主体燃料组件是否有缺陷。

2. 发明授权

US5085824A Nuclear refueling platform drive system 失效
标题翻译：核加油平台驱动系统
公开(公告)号：US5085824A
公开(公告)日：1992-02-04
申请号：US648093
申请日：1991-01-31
申请人： Francis R. Busch , David L. Faulstich
发明人： Francis R. Busch , David L. Faulstich
IPC分类号： G21C19/02 , G21C19/18 , G21C19/20
CPC分类号： B66C9/16 , G21C19/18 , G21C19/20
摘要： A drive system for propelling first and second drive trucks of a bridge includes a first motor and transmission for driving the first truck, an independent second motor and transmission for driving the second truck and a controller for coordinating the first and second motors for maintaining differential transverse travel between the first and second drive trucks to less than a predetermined maximum. A first closed-loop controls velocity of the first drive truck, a second closed-loop controls velocity of the second drive truck, and an auxiliary closed-loop senses a difference in travel of the first and second drive trucks and adjusts performance of at least one of the first and second closed-loops.

3. 发明授权

US5960051A Methods and apparatus for moving fuel bundles in a nuclear reactor 失效
标题翻译：在核反应堆中移动燃料束的方法和装置
公开(公告)号：US5960051A
公开(公告)日：1999-09-28
申请号：US17943
申请日：1998-02-03
申请人： Roy C. Challberg , David L. Faulstich , Bishara E. Kakunda , Karim-Panahi Khosrow , John D. Wilford , Richard A. Wolters , Bernt R. Gaertner , William J. Knowles
发明人： Roy C. Challberg , David L. Faulstich , Bishara E. Kakunda , Karim-Panahi Khosrow , John D. Wilford , Richard A. Wolters , Bernt R. Gaertner , William J. Knowles
IPC分类号： G21C19/105 , G21C19/19 , G21C19/20
CPC分类号： G21C19/105 , G21C19/205 , G21Y2002/202 , G21Y2002/402 , G21Y2002/501 , G21Y2004/304 , G21Y2004/40 , G21Y2004/504
摘要： Methods and apparatus for moving fuel bundles in a reactor pressure vessel (RPV) of a nuclear reactor are described. In one embodiment of the apparatus, a support tube facilitates the positioning of a multiple channeled magazine within the RPV, especially at locations adjacent fuel bundles. In the one embodiment, the support tube extends in the reactor pressure vessel into the area above the top guide. A magazine assembly is coupled to the support tube, and includes a magazine having a plurality of fuel bundle receiving channels. The magazine extends from the support tube so that it is adjacent the fuel bundles and the top guide. Grapples extend through the magazine channels, engage the fuel bundles, and retract the bundles into the magazine channels. The magazine and support tube, and thus the bundles, are then moved.
摘要翻译：描述了用于在核反应堆的反应堆压力容器（RPV）中移动燃料束的方法和装置。在该装置的一个实施例中，支撑管有助于在RPV内，特别是在邻近燃料束的位置处定位多通道杂物箱。在一个实施例中，支撑管在反应堆压力容器中延伸到顶部引导件上方的区域中。杂志组合件联接到支撑管，并且包括具有多个燃料束接收通道的料仓。料仓从支撑管延伸，使其与燃料束和顶部导向件相邻。抓斗延伸穿过仓库通道，接合燃料束，并将捆扎物收回料盒通道。然后移动杂志和支撑管，以及捆束。

4. 发明授权

US5369676A Reactor refueling mechanism 失效
标题翻译：反应堆加油机制
公开(公告)号：US5369676A
公开(公告)日：1994-11-29
申请号：US108271
申请日：1993-08-19
申请人： Frank Ortega , David L. Faulstich
发明人： Frank Ortega , David L. Faulstich
IPC分类号： G21C19/19 , G21C19/10 , G21C19/105
CPC分类号： G21C19/205 , G21C19/10 , G21C19/105 , G21Y2002/201 , G21Y2002/40 , G21Y2004/501 , G21Y2004/502
摘要： A reactor refueling mechanism includes a bridge, a trolley on the bridge, and an elevator on the trolley, with the elevator including a mast with a grapple at the lower end thereof. The bridge spans a reactor core and is rotatable therearound, with the trolley being translatable over the bridge. The elevator is also rotatable on the trolley, and the mast is vertically movable for positioning of the grapple. The combined movement capability of the mechanism allows the shuffling of fuel bundles between cells in the reactor core, and the accurate placement of square fuel bundles in complementary square cells in the core.
摘要翻译：反应堆加油机构包括桥梁，桥上的手推车和手推车上的电梯，电梯包括在其下端具有抓斗的桅杆。该桥跨越一个反应堆堆芯，可绕其转动，手推车可在桥上平移。电梯也可以在手推车上旋转，并且桅杆可垂直移动以定位抓斗。机构的组合运动能力允许在反应堆堆芯中的电池之间混合燃料束，并且将正方形燃料束精确地放置在核心中的互补方形电池中。

5. 发明授权

US5028379A Fuel handling system for nuclear reactor plants 失效
标题翻译：核反应堆燃料处理系统
公开(公告)号：US5028379A
公开(公告)日：1991-07-02
申请号：US453896
申请日：1989-12-20
申请人： David L. Faulstich
发明人： David L. Faulstich
IPC分类号： G21C19/19 , G21C17/08 , G21C19/18
CPC分类号： G21C19/18 , G21C17/08
摘要： A fuel handling system for nuclear reactor plants comprising a camera containing underwater grapple means for transferring fuel units while submerged within a water containing reactor vessel.

6. 发明授权

US5426678A Method for ultrasonic inspection of a closely packed array of fuel rods surrounded by a thin-walled metallic channel 失效
标题翻译：用薄壁金属通道包围的密封的燃料棒阵列进行超声波检查的方法
公开(公告)号：US5426678A
公开(公告)日：1995-06-20
申请号：US92099
申请日：1993-07-16
申请人： James H. Terhune , David L. Faulstich
发明人： James H. Terhune , David L. Faulstich
IPC分类号： G01N29/04 , G01N29/09 , G01N29/11 , G01N29/22 , G21C17/003 , G21C17/06 , G21C17/00
CPC分类号： G21C17/06 , G01N29/09 , G01N29/11 , G01N29/22 , G01N2291/044
摘要： A method for ultrasonically inspecting a closely packed regular array of mutually parallel, uniformly sized and spaced rigid rods surrounded by a thin-walled metallic channel and immersed in a compressible medium. The method utilizes the properties of coherently scattered ultrasonic waves to identify rods which are defective, out of position or missing. A plane, monochromatic ultrasonic wave is transmitted toward the array of rods on one side thereof. Then an interference pattern produced on an opposing side of the array is detected. This interference pattern is the result of multiple scattering and diffraction of the plane ultrasonic wave during propagation through the array of rods. When the wavelength is comparable with the rod diameter and the rods are not too close together, scattering results in spatial relationships that produce an unusually large amount of wave penetration through the array in certain directions relative to the incident propagation vector. This is akin to Bragg scattering and is dependent on direction, wavelength, and details of the cylindrical array dimensions.
摘要翻译：一种用于超声检查由薄壁金属通道围绕并浸没在可压缩介质中的彼此平行的，均匀尺寸和间隔开的刚性杆的紧密包装的规则阵列的方法。该方法利用相干散射超声波的性质来识别有缺陷，不在位或缺失的棒。平面单色超声波在其一侧朝向杆阵列传递。然后检测在阵列的相对侧产生的干涉图案。这种干涉图案是在通过杆阵列传播过程中平面超声波的多次散射和衍射的结果。当波长与杆直径相当并且棒不太靠近在一起时，散射导致空间关系，其产生相对于入射传播矢量在特定方向上穿过阵列的异常大量的波穿透。这类似于布拉格散射，取决于圆柱阵列尺寸的方向，波长和细节。

7. 发明授权

US5084231A Cylindrical refueling mast with longitudinal guide grooves 失效
标题翻译：具有长期导向栅栏的圆柱形修复材料
公开(公告)号：US5084231A
公开(公告)日：1992-01-28
申请号：US388175
申请日：1989-07-31
申请人： Robert C. Dixon , James R. Punches , David L. Rousar , David L. Faulstich
发明人： Robert C. Dixon , James R. Punches , David L. Rousar , David L. Faulstich
IPC分类号： G21C19/18 , G21C19/16
CPC分类号： G21C19/16
摘要： A refueling mast for a reactor complex includes four generally cylindrical tubes. Each inner tube has vertical grooved tracks formed therein. Each outer tube has a guide roller mounted thereon with grooves which mate with track grooves of a respective track on the adjacent inner tube. Track grooves are cold formed moving a roller die tool up and down each inner tube, while increasing pressure on the incorporated die rollers. This process flattens the inner tube where the tracks are being formed. The grooved tracks and the associated flattening provide the torsional rigidity required on the mast tubes for precise positioning and orientation of fuel elements.

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