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51. 发明授权

US10276270B2 Nuclear reactor coolant pump and nuclear power plant having same 有权
公开(公告)号：US10276270B2
公开(公告)日：2019-04-30
申请号：US15030578
申请日：2014-11-25
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young Soo Kim , Young In Kim , Cheon Tae Park , Ju Hyeon Yoon , Tae Wan Kim , Keung Koo Kim , Jae Joo Ha
IPC分类号： G21D3/10 , G21C17/00 , G21C17/01 , G21C17/02 , G21C17/06 , G21C19/20 , G21C17/003 , G21C17/007 , G21C17/013 , G21C17/022 , G21C17/104 , G21C17/108 , G21C17/112 , G21C19/07 , G21C19/40 , G21C19/34 , G21C15/24 , G21C1/32 , G21C15/243 , G21C15/18 , G21D1/04 , G21C15/247 , G21C15/28
摘要： The present invention discloses a nuclear reactor coolant pump that does not rely on an electric motor, but is operated by means of driving force generated inside a nuclear power plant, so a to be capable of maintaining the safety of the nuclear reactor when the nuclear reactor is operating normally and also in the event of an accident in the nuclear reactor. The nuclear reactor coolant pump comprises: a pump impeller rotatably installed in a first fluid passage of a nuclear reactor coolant system to circulate a first fluid inside the nuclear reactor coolant system; a drive unit receiving steam from a steam generator to generate driving force to rotate the pump impeller, and rotating about the same rotating shaft as the pump impeller to transfer the generated driving force to the pump impeller; and a steam supplying unit forming a passage between the steam generator and the drive unit to supply at least a portion of the steam released from the steam generator to the drive unit.

52. 发明申请

US20190013106A1 ASSEMBLY FOR A NUCLEAR REACTOR OF SFR TYPE WITH REVERSIBLE WELDLESS CONNECTION BETWEEN THE ASSEMBLY CASING AND AN ASSEMBLY ELEMENT INSERTED INTO THE CASING 审中-公开
公开(公告)号：US20190013106A1
公开(公告)日：2019-01-10
申请号：US16029107
申请日：2018-07-06
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES AL TERNATIVES
发明人： Victor BLANC , Thierry BECK
IPC分类号： G21C1/03 , G21C1/02 , G21C5/10 , G21C19/19 , G21C19/34
摘要： An assembly to be inserted into a nuclear reactor, such as a liquid sodium-cooled fast neutron reactor SFR, includes an assembly hollow body, of elongate shape along a longitudinal axis X. The wall of the hollow body includes at least one open-ended opening. The assembly also includes an assembly element inserted at least in part into the hollow body. The assembly element includes at least one flexible blade of which the free end is shaped into a clip-fastening hook collaborating in clip-fastening with the open-ended opening from inside the hollow body, so as to connect the assembly element to the hollow body. The assembly also includes at least one removable structure for locking the flexible blade clip-fastened into the open-ended opening. The removable locking structure makes it possible to prevent the flexible blade from flexing and thus lock the connection between the assembly element and the hollow body.

53. 发明授权

US09153349B2 Method for recycling nuclear control rods and recycled control rod section 有权
标题翻译：回收核控制棒和回收控制杆部分的方法
公开(公告)号：US09153349B2
公开(公告)日：2015-10-06
申请号：US13417771
申请日：2012-03-12
申请人： Wesley Davis , Brett Matthews
发明人： Wesley Davis , Brett Matthews
IPC分类号： G21C19/00 , G21C21/18 , G21D1/00 , G21C19/34 , G21F9/30
CPC分类号： G21C21/18 , G21C19/34 , G21D1/003 , G21F9/30 , Y02W30/881
摘要： A method for recycling AgInCd control rod absorber bar material from a used control rod from a nuclear power plant includes sectioning AgInCd absorber bar from a used control rod into a first section and a second section, the first section having a higher radioactivity than the second section; and recycling the material of the second section of the AgInCd absorber bar.
摘要翻译：用于从核电站使用的控制棒回收AgInCd控制棒吸收棒材料的方法包括将AgInCd吸收棒从使用的控制棒切成第一部分和第二部分，第一部分具有比第二部分更高的放射性 ; 并回收AgInCd吸收棒的第二部分的材料。

54. 发明授权

US5347555A Method for shredding and packing fuel assembly cases or similar nuclear reactor structural elements and apparatus for performing the method 失效
标题翻译：用于粉碎和包装燃料组件壳体或类似的核反应堆结构元件的方法和用于执行该方法的装置
公开(公告)号：US5347555A
公开(公告)日：1994-09-13
申请号：US51636
申请日：1993-04-22
申请人： Klaus Knecht , Heinz Knaab
发明人： Klaus Knecht , Heinz Knaab
IPC分类号： G21C19/36 , G21C19/34
CPC分类号： G21C19/36 , Y10S83/93
摘要： A method for shredding and packing used structural elements of nuclear reactors, such as fuel assembly cases, comprises the steps of shredding structural elements to scrap pieces; flushing the scrap pieces in a transport container and flushing away highly radioactive particles of foreign matter and collecting the particles in the interior of the transport container; packing the flushed scrap pieces around the particles of foreign matter collected in the interior; and inserting the packed transport container into a sealable disposal container. An apparatus for performing the method includes a shredder assembly, an interchangeable transport container disposed below the shredder assembly; connectors for connecting the transport housing in a liquid cycle; a filter disposed in the liquid cycle; a carriage for laterally displacing the transport container relative to the shredder assembly; and lifting and transportation devices for lifting the transport container and for inserting the transport container into an ultimate disposal container.
摘要翻译：用于粉碎和包装的核子反应堆的结构元件如燃料组件壳体的方法包括将结构元件切碎成碎片的步骤; 将运输容器中的废料冲洗并冲洗高度放射性的异物颗粒并将颗粒收集在运输容器的内部; 将冲洗的废料包装在内部收集的异物颗粒周围; 并将包装的运输容器插入可密封的处理容器中。一种用于执行该方法的设备包括：粉碎机组件，设置在粉碎机组件下方的可互换运输容器; 用于在液体循环中连接运输壳体的连接器; 设置在液体循环中的过滤器; 用于使运送容器相对于粉碎机组件横向移位的托架; 以及用于提升运输集装箱和将运输容器插入最终处置容器的提升和运输装置。

55. 发明授权

US4952072A System and method for removing and consolidation fuel rods of a nuclear fuel assembly 失效
标题翻译：用于拆卸和整合核燃料组件的燃料棒的系统和方法
公开(公告)号：US4952072A
公开(公告)日：1990-08-28
申请号：US311435
申请日：1989-02-16
申请人： Frederick J. Ellingson , Anoop Kapoor , Arthur W. Kramer , Donald G. Sherwood
发明人： Frederick J. Ellingson , Anoop Kapoor , Arthur W. Kramer , Donald G. Sherwood
IPC分类号： G21C19/34
CPC分类号： G21C19/34
摘要： A system and a method for removing and consolidating the spent fuel rods of a fuel assembly is disclosed herein. The sytem comprises a pushing assembly having a push rod for pushing a selected fuel rod out of a fuel assembly, a fuel assembly positioner including an elevator for conveniently positioning a fuel assembly within the spent fuel pool of a nuclear facility, a rod catching grid for preventing the pushed-out fuel rods from falling to the bottom of the pool and a transition cannister for funneling the rods into a consolidated arrangement within a storage cannister. In operation, the push rod is positioned over and engaged against the upper end of a fuel rod to be removed from the assembly. Thus engaged, the push rod is inserted through the cells in the grids of the fuel assembly that surround the selected fuel rod, thereby pushing it out of the fuel assembly. Thus the grid cells are used as an alignment means for the push rod during the rod-pushing operation.
摘要翻译：本文公开了一种用于去除和固结燃料组件的乏燃料棒的系统和方法。该系统包括具有用于将选定的燃料棒推出燃料组件的推杆的推动组件，包括用于将燃料组件方便地定位在核设施的乏燃料池内的电梯的燃料组件定位器，用于防止被推出的燃料棒落到池底部;以及过渡罐，用于将棒料斗放入储存罐内的固结装置中。在操作中，推杆定位在燃料棒的上端并与其接合以从组件移除。因此，推杆通过围绕选定燃料棒的燃料组件的格栅中的电池插入，从而将其推出燃料组件。因此，网格单元在推杆操作期间用作推杆的对准装置。

56. 发明授权

US4943410A Compaction apparatus for spent nuclear fuel rods 失效
标题翻译：乏核燃料棒压实装置
公开(公告)号：US4943410A
公开(公告)日：1990-07-24
申请号：US097045
申请日：1987-09-16
申请人： William J. Wachter
发明人： William J. Wachter
IPC分类号： G21C19/34 , G21C19/36 , G21C19/32
CPC分类号： G21C19/36 , G21C19/34
摘要： A fuel rod directing chamber for compacting an array of fuel rods from an uncompacted array corresponding to the spacing of fuel rods in a fuel rod assembly to a compacted array in which no spacing exists between the individual fuel rods. The chamber is comprised of an elongated funnel containing a plurality of cavities extending longitudinally therethrough. The cavities form a plurality of holes at an entry end of the funnel corresponding in number and array to an array of fuel rods in a fuel rod assembly. The spacing between the cavities decreases along the length of the funnel until no spacing exists between the cavities. By causing fuel rods of a spent nuclear fuel rod assembly to pass through the cavities of the directing chamber, the spacing between the individual rods decreases, thereby reducing the reactivity of the rods, and increasing the density thereof. Because the location and identity of each spent fuel rod is determinable even in the compacted array, accountability of the entire amount of spent fuel material is at all times maintained.
摘要翻译：一种燃料棒引导室，用于从燃料棒组件中的燃料棒的间隔对应于未压缩阵列压实燃料棒阵列到压缩阵列，其中各个燃料棒之间不存在间隔。该室由细长的漏斗组成，其包含纵向延伸通过其中延伸的多个空腔。空腔在漏斗的入口端处形成多个孔，其数量对应并排列成燃料棒组件中的燃料棒阵列。空腔之间的间距沿漏斗的长度减小，直到在腔之间不存在间隔。通过使废核燃料棒组件的燃料棒通过引导室的空腔，单个杆之间的间隔减小，从而降低棒的反应性并增加其密度。因为即使在紧凑的阵列中，每个乏燃料棒的位置和身份都是可以确定的，因此总是维持全部乏燃料的责任。

57. 发明授权

US4731219A Method and apparatus for compacting a bundle of fuel elements 失效
标题翻译：用于压缩一束燃料元件的方法和装置
公开(公告)号：US4731219A
公开(公告)日：1988-03-15
申请号：US901903
申请日：1986-08-29
申请人： Jean Beneck , Jean P. Louvat , Claude Quayre
发明人： Jean Beneck , Jean P. Louvat , Claude Quayre
IPC分类号： G21C19/06 , G21C19/02 , G21C19/33 , G21C19/34 , G21C19/40 , G21C19/32
CPC分类号： G21C19/34 , Y10T29/531
摘要： An apparatus for consolidating the nuclear fuel elements originally arranged in a square pattern into a truss of tightly packed elements comprises a vertical quiver of pyramidal shape having lateral surfaces converging downwardly and a rectangular cross-section. Two opposite faces of the quiver are formed with projections of downwardly increasing amplitude for rearranging the elements in a triangular pattern when they are lowered into the quiver. Dividing walls perpendicular to those faces which are provided with projections separate and guide rows of elements at the top part of the quiver. A grid at the top of the quiver comprises compartments for introducing elements and consists of several fractions which may be moved apart from each other and brought together along a direction parallel to the dividing wall.
摘要翻译：用于将原来以正方形排列的核燃料元件整合到紧密堆积元件的桁架中的装置包括具有向下收敛并具有矩形横截面的侧向表面的棱锥形垂直颤振。颤抖的两个相对的表面形成有向下增加幅度的突起，以便当它们下降到颤抖中时将元件重新排列成三角形图案。垂直于那些面设有突起的分隔壁分开并引导颤抖顶部的元件行。颤抖顶部的网格包括用于引入元件的隔室，并且由可分离的几个部分组成，并且沿平行于分隔壁的方向汇合在一起。

58. 发明授权

US4704247A Method and apparatus for compacting spent nuclear reactor fuel rods 失效
标题翻译：用于压制乏核反应堆燃料棒的方法和装置
公开(公告)号：US4704247A
公开(公告)日：1987-11-03
申请号：US642342
申请日：1984-08-20
申请人： William J. Wachter
发明人： William J. Wachter
IPC分类号： G21C19/34 , G21C19/36 , G21C19/10 , G21C19/32
CPC分类号： G21C19/36 , G21C19/34
摘要： A method and apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a water storage pool. The individual rods are drawn upwardly through a transition funnel from the fuel rod assembly into a fuel rod container. Individual wires extend through the fuel rod container, through the transition funnel and are secured to the top ends of the individual fuel rods within a fuel rod assembly. All of the fuel rods are withdrawn concurrently and are merged toward one another into a tighter array within the fuel rod container.
摘要翻译：一种用于将废燃料棒从核燃料棒组件抽出到不同的核燃料棒容器中的方法和装置，其中废燃料棒具有较高的燃料棒密度，由此可以将更多数量的乏燃料棒储存在储水池中。单个杆被向上穿过过渡漏斗从燃料棒组件向燃料棒容器中。单独的电线通过燃料棒容器延伸通过过渡漏斗，并固定在燃料棒组件内的单个燃料棒的顶端。所有的燃料棒同时被抽出并且彼此相互合并成燃料棒容器内更紧的阵列。

59. 发明授权

US4659535A Grid structure for fuel rod consolidation canister 失效
标题翻译：燃料棒固结罐的网格结构
公开(公告)号：US4659535A
公开(公告)日：1987-04-21
申请号：US686173
申请日：1984-12-24
申请人： Michael V. Couture , Ronald Keklak
发明人： Michael V. Couture , Ronald Keklak
IPC分类号： G21C19/06 , G21C19/34 , G21C19/36 , G21C19/00
CPC分类号： G21C19/36 , Y10T29/531
摘要： A grid structure (42) is mounted within the upper portion (24) of a tapered canister (24), for receiving a relatively loosely packed rectangular array of rods (22) and rearranging the rods into a relatively tightly packed rectangular array at the lower end of the grid. The grid structure comprises a multiplicity of flat, vertically oriented trapezoidal segments (78, 80) interconnected to form a plurality of vertically overlapping grid layers (74, 76). The layers alternate between a row orientation and a column orientation, and thus form a substantially continuous honeycomb of longitudinal cells (64) for guiding individual rods. The cross-sectional area of each cell decreases from the uppermost layer (74a) to the lowermost layer (74i) such that the rods are funneled by the cells to form the tightly packed array.
摘要翻译：栅格结构（42）安装在锥形罐（24）的上部（24）内，用于接收相对松散的矩形矩阵阵列（22），并将杆重新排列成较低密度的矩形阵列电网结束。栅格结构包括互连以形成多个垂直重叠的栅格层（74,76）的多个平坦的垂直取向的梯形段（78,80）。这些层在行方向和列方向之间交替，并且因此形成用于引导单个杆的纵向单元（64）的基本上连续的蜂窝体。每个单元的横截面面积从最上层（74a）到最下层（74i）都减小，使得这些棒被单元格漏斗形成紧密排列的阵列。

60. 发明授权

US4619808A System and method for consolidating spent nuclear fuel 失效
标题翻译：巩固乏核燃料的制度和方法
公开(公告)号：US4619808A
公开(公告)日：1986-10-28
申请号：US535105
申请日：1983-09-23
申请人： Frank J. Formanek
发明人： Frank J. Formanek
IPC分类号： G21C19/34 , G21C19/00
CPC分类号： G21C19/34 , Y02W30/881
摘要： A system and method for handling nuclear fuel in which a consolidation stage (26), including a disassembly station (60), an interim transfer station (62) and a consolidation station (64), and a multiple rod pulling tool (78) and interim fuel transfer canister (86) are employed to remove fuel rods (42) from two fuel assemblies (32) and consolidate them into one storage box (96). A key feature of the disclosure is the alignment of the transfer canister (86) over the box (96) such that the canister base (92) with the weight of the consolidated rods, is released and lowered into a new position as the base of the storage box (96). A duel elevator arrangement (108, 110) is disclosed for moving the base (29) and box (96) to transfer the rods therebetween.
摘要翻译：一种用于处理核燃料的系统和方法，其中包括拆卸站（60），临时转运站（62）和固结站（64）的固结平台（26）和多杆拉动工具（78）以及临时燃料转移罐（86）用于从两个燃料组件（32）移除燃料棒（42）并将它们合并成一个储存箱（96）。本公开的一个关键特征是转移罐（86）在箱体（96）上的对准，使得具有固定杆的重量的罐底座（92）被释放并降低到新的位置，作为存储盒（96）。公开了一种用于移动基座（29）和盒（96）以在其间传送杆的决斗电梯装置（108,110）。

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