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1. 发明申请

US20230036331A1 A NUCLEAR FUEL ASSEMBLY AND A METHOD OF MANUFACTURE THEREOF 有权
公开(公告)号：US20230036331A1
公开(公告)日：2023-02-02
申请号：US17758443
申请日：2021-01-08
申请人： Westinghouse Electric Company LLC
发明人： Edward J. LAHODA , Clinton B. ARMSTRONG , Lyman J. PETROSKY
IPC分类号： G21C3/20 , G21C3/18 , G21C3/36 , G21C21/02
摘要： A nuclear fuel assembly and a method of manufacture thereof are provided. The method comprises depositing a thermally conductive layer onto at least a portion of at least two nuclear fuel layers to create at least two at least partially coated layers. The method comprises stacking the at least two coated layers and bonding the at least two coated layers to form a nuclear fuel assembly.

2. 发明授权

US11545273B2 Nuclear reactor component having a coating of amorphous chromium carbide 有权
公开(公告)号：US11545273B2
公开(公告)日：2023-01-03
申请号：US17022866
申请日：2020-09-16
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
发明人： Frédéric Schuster , Fernando Lomello , Francis Maury , Alexandre Michau , Raphaël Boichot , Michel Pons
IPC分类号： G21C3/20 , G21C3/34 , G21C5/18 , G21C7/10 , G21C3/07 , C23C16/02 , C23C16/04 , C23C16/34 , C23C16/448 , C23C16/56 , G21C3/326 , G21C3/36
摘要： A composite nuclear reactor component comprises a support and a protective layer (2). The support contains a substrate (1) based on a metal. The substrate is coated with an interposed layer (3) positioned between the substrate (1) and the protective layer (2). The protective layer (2) is composed of a material which comprises amorphous chromium carbide. The nuclear reactor component provides for improved resistance to oxidation, hydriding, and/or migration of undesired material.

3. 发明申请

US20220139576A1 FISSION REACTOR WITH SEGMENTED CLADDING BODIES HAVING CLADDING ARMS WITH INVOLUTE CURVE SHAPE 有权
公开(公告)号：US20220139576A1
公开(公告)日：2022-05-05
申请号：US17578845
申请日：2022-01-19
申请人： BWXT Advanced Technologies LLC
发明人： James B. INMAN , Joshua J. BERGMAN
IPC分类号： G21C3/36 , G21C3/04 , G21C21/02 , G21C3/06 , G21C3/16 , G21C5/06
摘要： Plurality of layers form a nuclear fission reactor structure, each layer having an inner segment body, an intermediate segment body, and an outer segment body (each segment body separated by an interface). The layers include a plurality of cladding arms having involute curve shapes that spirally radiate outward from a radially inner end to a radially outer end. Chambers in the involute curve shaped cladding arm contain fuel compositions (and/or other materials such as moderators and poisons). The design of the involute curve shaped cladding arms and the composition of the materials conform to neutronic and thermal management requirements for the nuclear fission reactor and are of sufficiently common design and/or have sufficiently few variations as to reduce manufacturing complexity and manufacturing variability.

4. 发明授权

US11139086B2 Customizable thin plate fuel form and reactor core therefor 有权
公开(公告)号：US11139086B2
公开(公告)日：2021-10-05
申请号：US15834922
申请日：2017-12-07
申请人： HOWE INDUSTRIES, LLC
发明人： Troy M. Howe , Steven D. Howe
IPC分类号： G21C3/36 , G21C3/20 , G21C15/06 , G21C5/18 , G21C5/16 , G21C3/64 , B64G1/40 , G21C5/12 , G21C3/62
摘要： A customizable thin plate fuel form and reactor core therefor are disclosed. The thin plate fuel will comprise a fuel material embedded within a matrix material, with the entire unit having a coating. The thin plate fuel may be flat or curved and will have flow channels formed within at least the top surface of the fuel plate. The structure of the thin plate fuel will make it easier for coating with Tungsten or any other suitable material that will help contain any byproducts, prevent reactions with the working fluid, and potentially provide structural support to the thin plate fuel.

5. 发明申请

US20070153966A1 Method for producing ceramic nuclear fuel tablets, device and container for carrying out said method 审中-公开
标题翻译：制造陶瓷核燃料片的方法，用于实施所述方法的装置和容器
公开(公告)号：US20070153966A1
公开(公告)日：2007-07-05
申请号：US10574093
申请日：2003-09-29
申请人： Valery Astafiev
发明人： Valery Astafiev
IPC分类号： G21C3/36
CPC分类号： G21C21/02 , G21C3/62 , Y02E30/38
摘要： The invention relates to nuclear engineering. The inventive method for producing ceramic nuclear fuel tablets consists in preparing, granulating and pressing a moulding powder and in sintering the thus obtained tablets. The preparation stage consisting in grinding and mixing is carried out by means of ferromagnetic needles (7) in a container (4) under magnetic field action. The inventive device for preparing the moulding powder comprises a protective chamber (12), a grinding and mixing unit embodied in the form of an inductor coil (10). A tube (9) which is made of a non-magnetic material and in which the container (4) is arranged is introduced into the inductor coil (10). Said device also comprises a powder granulation unit, a container conveying and positioning system provided with elements for vertically displacing (8, 13) and turning (14) said container. The protective chamber (12) is embodied in the form of a circuit in such a way that the container (4) is displaceable therein. Said container (4) is made of a non-magnetic material in the form of a cylinder and provided on the end surface thereof with a valve (6) which is connected to a cylindrical tank (21) by means of a flange joint (25a, 25b). The valve (6) has an internal cavity which is separated from the cylindrical tank by a transversal mesh partition (26) impenetrable for the ferromagnetic needles (7) Said invention is characterised in that it improves the powder mixing efficiency.
摘要翻译：本发明涉及核工程。制造陶瓷核燃料片的本发明的方法在于制备造粒和压制成型粉末并烧结由此获得的片剂。在研磨和混合中的制备阶段通过铁磁性针（7）在容器（4）中的磁场作用下进行。用于制备模制粉末的本发明的装置包括保护室（12），以电感线圈（10）的形式实现的研磨和混合单元。将由非磁性材料制成的容器（4）的管（9）引入到电感线圈（10）中。所述装置还包括粉末造粒单元，容器输送和定位系统，其具有用于垂直移位（8,13）和转动（14）所述容器的元件。保护室（12）以电路的形式实现，使得容器（4）可在其中移位。所述容器（4）由圆柱体形式的非磁性材料制成，其端面设置有阀（6），阀（6）通过法兰接头（25）连接到圆筒形容器 a，25 b）。阀（6）具有内腔，其通过不能穿过铁磁针（7）的横向网格分隔（26）与圆柱形容器分离。本发明的特征在于其提高粉末混合效率。

6. 发明授权

US4764339A High flux reactor 失效
标题翻译：高通量反应器
公开(公告)号：US4764339A
公开(公告)日：1988-08-16
申请号：US942102
申请日：1986-12-16
申请人： James A. Lake , Russell L. Heath , John L. Liebenthal , Deslonde R. DeBoisblanc , Carl F. Leyse , Kent Parsons , John M. Ryskamp , Robert P. Wadkins , Yale D. Harker , Gary N. Fillmore , Chang H. Oh
发明人： James A. Lake , Russell L. Heath , John L. Liebenthal , Deslonde R. DeBoisblanc , Carl F. Leyse , Kent Parsons , John M. Ryskamp , Robert P. Wadkins , Yale D. Harker , Gary N. Fillmore , Chang H. Oh
IPC分类号： G21C1/04 , G21C1/30 , G21C3/36 , G21C7/08 , G21C15/02 , G21C23/00 , G21C15/00
CPC分类号： G21C1/04 , G21C1/30 , G21C15/02 , G21C3/36 , G21C7/08 , G21Y2002/201 , G21Y2004/30 , Y02E30/39 , Y10S376/901
摘要： A high flux reactor is comprised of a core which is divided into two symetric segments housed in a pressure vessel. The core segments include at least one radial fuel plate. The spacing between the plates functions as a coolant flow channel. The core segments are spaced axially apart such that a coolant mixing plenum is formed between them. A channel is provided such that a portion of the coolant bypasses the first core section and goes directly into the mixing plenum. The outlet coolant from the first core segment is mixed with the bypass coolant resulting in a lower inlet temperature to the lower core segment.
摘要翻译：高通量反应器包括芯，其被分成容纳在压力容器中的两个对称段。芯段包括至少一个径向燃料板。板之间的间距用作冷却剂流动通道。芯部分轴向间隔开，使得它们之间形成冷却剂混合气室。提供通道，使得一部分冷却剂绕过第一核心部分并直接进入混合增压室。来自第一芯段的出口冷却剂与旁路冷却剂混合，导致较低的入口温度到下部核心段。

7. 发明授权

US4720370A Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate 失效
标题翻译：核反应堆燃料结构包含埋在金属基体板中的铀合金线
公开(公告)号：US4720370A
公开(公告)日：1988-01-19
申请号：US791235
申请日：1985-10-25
申请人： Armando Travelli
发明人： Armando Travelli
IPC分类号： G21C3/36
CPC分类号： G21C3/36 , Y02E30/40 , Y10S376/901
摘要： A flat or curved plate structure, to be used as fuel in a nuclear reactor, comprises elongated fissionable wires or strips embedded in a metallic continuous non-fissionable matrix plate. The wires or strips are made predominantly of a malleable uranium alloy, such as uranium silicide, uranium gallide or uranium germanide. The matrix plate is made predominantly of aluminum or an aluminum alloy. The wires or strips are located in a single row at the midsurface of the plate, parallel with one another and with the length dimension of the plate. The wires or strips are separated from each other, and from the surface of the plate, by sufficient thicknesses of matrix material, to provide structural integrity and effective fission product retention, under neutron irradiation. This construction makes it safely feasible to provide a high uranium density, so that the uranium enrichment with uranium 235 may be reduced below about 20%, to deter the reprocessing of the uranium for use in nuclear weapons.
摘要翻译：在核反应堆中用作燃料的平板或弯曲板结构包括嵌入金属连续不可裂变矩阵板中的细长可分裂线或条。电线或条带主要由可延展的铀合金制成，例如硅化矽，铀铀或锗铀。矩阵板主要由铝或铝合金制成。电线或条带位于板的中间表面的单排中，彼此平行并且具有板的长度尺寸。电线或条带彼此分离，并从板的表面通过足够的基体材料的厚度，在中子照射下提供结构完整性和有效的裂变产物保留。这种建设使提供高铀密度的安全可行，使铀浓缩铀235可以降低到20％以下，以阻止用于核武器的铀再加工。

8. 发明授权

US3923596A Fuel assemblies for nuclear reactors 失效
标题翻译：核反应堆燃料组件
公开(公告)号：US3923596A
公开(公告)日：1975-12-02
申请号：US167660
申请日：1960-01-11
申请人： LEONARD JR BYRON H
发明人： LEONARD JR BYRON H
IPC分类号： G21C3/36
CPC分类号： G21C3/36 , Y02E30/40
摘要： 1. A fuel assembly for a nuclear reactor comprising, a plurality of elongated plate-like fuel bearing elements of the same length and width, paired longer than they are wide and assembly spacer members having means defining opposed spaced notches for receiving the side edges of said elongated plate-like fuel bearing elements, and means for securing said plate-like fuel bearing elements to said paired assembly spacer members with the side edges of said plate-like elements engaged in opposite notches in said paired assembly spacer elements so as to secure said fuel bearing elements in side by side spaced relation in a staggered arrangement transversely so as to conform to a diamond shaped profile in which opposite sides are parallel and opposite angles are substantially 60* and substantially 120* .
摘要翻译： 1.一种用于核反应堆的燃料组件，包括：具有相同长度和宽度的多个相同长度和宽度的细长板状燃料轴承元件比它们宽的一对成对，并且组装间隔件具有限定相对间隔开的凹口的装置，所述细长的板状燃料轴承元件和用于将所述板状燃料轴承元件固定到所述成对组件间隔件的装置，其中所述板状元件的侧边缘以相对的凹口接合在所述成对的组件间隔元件中，以便固定所述燃料轴承元件以交错排列的方式并排布置成横向以符合菱形轮廓，其中相对侧平行并且相对角度基本上为60°并且基本上为120°。

9. 发明授权

US3472734A Fuel element for liquid-cooled nuclear reactors 失效
标题翻译：液体冷却核反应堆的燃料元件
公开(公告)号：US3472734A
公开(公告)日：1969-10-14
申请号：US3472734D
申请日：1967-06-15
申请人： KERNFORSCHUNGSANLAGE JUELICH
发明人： BOETTCHER ALFRED
IPC分类号： G21C3/06 , G21C3/26 , G21C3/32 , G21C3/36 , G21C3/62 , G21C3/20
CPC分类号： G21C3/06 , G21C3/26 , G21C3/32 , G21C3/36 , G21C3/626 , Y02E30/35 , Y02E30/38

10. 发明授权

US3322645A Sheathed fuel plate assemblies for a nuclear reactor 失效
标题翻译：用于核反应堆的护套燃料板组件
公开(公告)号：US3322645A
公开(公告)日：1967-05-30
申请号：US48496365
申请日：1965-09-03
申请人： ATOMIC ENERGY AUTHORITY UK
发明人： ALLAN BARKER , GILBERT BOOL ALAN , TUNSTALL ACKROYD RONALD
IPC分类号： G21C1/02 , G21C3/324 , G21C3/36 , G21C15/04
CPC分类号： G21C1/022 , G21C3/324 , G21C3/36 , G21C15/04 , Y02E30/34

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