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1.发明公开公开(公告)号：US20230335304A1
公开(公告)日：2023-10-19
申请号：US17850238
申请日：2022-06-27
发明人： Di Yun , Zhaohao Wang , Chunyang Wen , Tiantian Shi , Linna Feng , Wenbo Liu , Jianqiang Shan
摘要： The invention belongs to the technical field of nuclear reactor materials design, and discloses a method for improving the withstanding capability of the cladding material in the fast neutron irradiation environment, comprising the following steps: selecting the cladding material with the annular structure and placing it on the outer side of the metallic fuel slug, with leaving a 0.2-0.8 mm gap between the metallic fuel slug and the cladding material; processing the operation in a reactor subsequently, with an annealing process of the fast neutron reactor fuel during the operation of the reactor; improves the withstanding capability of the cladding material in the fast neutron irradiation environment. The invention processes annealing treatment of the cladding material by balancing the internal and external stresses, multiple cycles of steady-state and transient operations, enhancing the withstanding capability of the steel in the high neutron irradiation environment, improving the lifetime of the cladding material.
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公开(公告)号：US20090041176A1
公开(公告)日：2009-02-12
申请号：US12278132
申请日：2007-02-01
申请人： Patrick Vasseur , Jean-Luc Allard , Serge Fantini
发明人： Patrick Vasseur , Jean-Luc Allard , Serge Fantini
IPC分类号： G21C3/34
CPC分类号： G21C3/18 , G21C3/28 , G21C21/02 , G21Y2002/205 , G21Y2002/302 , G21Y2004/30 , G21Y2004/401 , Y02E30/40
摘要： A spring mounting device in a cladding tube for nuclear fuel, comprising a spring distributor, a spring loader in the cladding tube, the distributor supplying the springs to the loader, said loader comprising a longitudinal slide to receive the spring, a pusher in order to set the spring into place in the cladding tube and is able to move in the slide, means of displacement of said pusher, said device comprising mechanical means in order to associate the actuation of the means of displacement with that of the spring distributor.
摘要翻译： 一种用于核燃料的包覆管中的弹簧安装装置，包括弹簧分配器，包层管中的弹簧装载器，将弹簧供应到装载机的分配器，所述装载器包括用于接收弹簧的纵向滑动件， 将弹簧设置在包层管中的位置，并且能够在滑动件中移动，所述推动器的移动装置，所述装置包括机械装置，以将移动装置的致动与弹簧分配器的致动联系起来。
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3.发明授权Methods for installing a fuel pellet locking retainer in a nuclear fuel rod 有权将燃料芯块锁定保持器安装在核燃料棒中的方法公开(公告)号：US07290319B2
公开(公告)日：2007-11-06
申请号：US11329110
申请日：2006-01-11
申请人： Russel P. Higgins
发明人： Russel P. Higgins
CPC分类号： G21C3/18 , G21C21/02 , G21Y2002/302 , G21Y2004/40 , Y02E30/40 , Y10T29/49842 , Y10T29/49863 , Y10T29/4987 , Y10T29/49872 , Y10T29/49895 , Y10T29/49904 , Y10T29/49945 , Y10T29/531 , Y10T29/53613 , Y10T29/53622
摘要： A method for installing a locking retainer in a tube to maintain internal components within the tube under compression comprising the steps of: a) providing an elongated retainer spring having large and small diameter sections with the large diameter section of a size for an interference fit with the interior diameter of the tube and the smaller diameter section of a size having a clearance with the interior diameter of the tube; b) inserting a smaller diameter section of an elongated tool into the larger diameter section of the elongated retainer spring; c) engaging a transition between the smaller and larger diameter sections of the tool against a transition between the larger and smaller diameter sections of the elongated retainer spring; d) inserting the combined tool and retainer spring into an open end of the tube containing internal components with an end of the smaller diameter section of the retainer spring entering the tube first; e) advancing the combined tool and retainer spring within the tube to compress the smaller diameter spring against an adjacent internal component until an end of the tool engages the adjacent internal component enabling the spring to apply a selected axial preload on the internal components in the tube; and f) withdrawing the tool from the retainer spring.
摘要翻译： 一种用于在管中安装锁定保持器以将管内的内部部件保持在压缩状态的方法，包括以下步骤：a）提供具有大直径和小直径部分的细长的保持弹簧，所述大直径部分的尺寸用于过盈配合 管的内径和具有与管的内径具有间隙的尺寸的较小直径部分; b）将细长工具的较小直径部分插入细长保持器弹簧的较大直径部分; c）使所述工具的较小和较大直径部分之间的过渡接合在所述细长保持器弹簧的较大和较小直径部分之间的过渡部; d）将组合的工具和固定弹簧插入到容纳内部部件的管的开口端中，保持弹簧的较小直径部分的端部首先进入管子; e）将组合的工具和保持器弹簧推进到管内，以将较小直径的弹簧压靠在相邻的内部部件上，直到工具的一端接合相邻的内部部件，使得弹簧能够将选定的轴向预载荷施加在管中的内部部件上 ; 以及f）从保持弹簧中取出工具。
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4.发明授权Zirconium-alloy clad fuel rods containing metal oxide for mitigation of secondary hydriding 失效包含金属氧化物的锆合金包覆燃料棒，用于缓解二次氢化公开(公告)号：US06697450B2
公开(公告)日：2004-02-24
申请号：US10330282
申请日：2002-12-30
IPC分类号： G21C300
CPC分类号： G21C3/18 , G21C3/20 , G21Y2002/104 , G21Y2004/101 , Y02E30/40
摘要： Method of fabricating a fuel rod, comprising providing an effective amount of a metal oxide in the fuel rod to generate steam and mitigate the tendency for secondary hydriding. Fuel rods fabricated according to the method of the invention are also provided.
摘要翻译： 制造燃料棒的方法，包括在燃料棒中提供有效量的金属氧化物以产生蒸汽并减轻二次氢化的倾向。 还提供了根据本发明的方法制造的燃料棒。
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5.发明申请公开(公告)号：US20020181642A1
公开(公告)日：2002-12-05
申请号：US09871972
申请日：2001-06-04
IPC分类号： G21C019/00 , G21C003/00
摘要： Method of fabricating a fuel rod, comprising providing an effective amount of a metal oxide in the fuel rod to generate steam and mitigate the tendency for secondary hydriding. Fuel rods fabricated according to the method of the invention are also provided.
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公开(公告)号：US6275557B2
公开(公告)日：2001-08-14
申请号：US20249699
申请日：1999-02-11
申请人： ASEA ATOM AB
发明人： NYLUND OLOV , FREDIN BO , HELMERSSON STURE
CPC分类号： G21C3/328 , G21C3/18 , G21Y2002/207 , G21Y2004/305 , Y02E30/38
摘要： The present invention relates to a fuel assembly with a substantially square cross section for a light-water reactor. The light-water reactor comprises a plurality of fuel rods (4) extending between a top tie plate (5) and a bottom tie plate (6). A fuel rod (4) comprises a cladding tube (7a) with a first and a second end which surround a column with fissionable material (7b). According to one aspect of the invention, at least one fuel rod (4) is provided with an axial gap (19) in the fissionable material (7b), such that fissionable material (7b) is arranged on both sides of the axial gap (19) in the fuel rod (4).
摘要翻译： 本发明涉及一种具有用于轻水反应器的基本正方形横截面的燃料组件。 轻水反应器包括在顶部连接板（5）和底部连接板（6）之间延伸的多个燃料棒（4）。 燃料棒（4）包括具有第一和第二端的包层管（7a），所述第一和第二端围绕具有可裂变材料（7b）的柱。 根据本发明的一个方面，至少一个燃料棒（4）在可裂变材料（7b）中设置有轴向间隙（19），使得可裂变材料（7b）布置在轴向间隙的两侧 19）在燃料棒（4）中。
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公开(公告)号：US5475723A
公开(公告)日：1995-12-12
申请号：US215451
申请日：1994-03-21
申请人： Mickey O. Marlowe
发明人： Mickey O. Marlowe
CPC分类号： G21C3/18 , G21C3/07 , G21Y2002/104 , G21Y2004/10 , Y02E30/40
摘要： A cladding tube for use in holding fissionable material in a water cooled nuclear reactor is provided. The cladding tube includes inner and outer circumferential regions, and including (1) a substrate defining the outer circumferential region, and (2) an inner liner defining the inner circumferential region. The inner liner is made from a zirconium alloy having at least one alloying element which promotes hydrogen absorption in a concentration of between about 1 and 15 weight percent. The hydrogen absorption promoting element can be one of the following: nickel, chromium, iron, zinc, vanadium, gallium, yttrium, palladium, platinum, or aluminum.
摘要翻译： 提供了一种用于在水冷核反应堆中保持可裂变材料的包层管。 包层管包括内周区域和外周区域，并且包括（1）限定外周区域的基板，以及（2）限定内周区域的内衬层。 内衬由具有至少一种合金元素的锆合金制成，该合金元素以约1至15重量％的浓度促进氢吸收。 吸氢促进元素可以是以下之一：镍，铬，铁，锌，钒，镓，钇，钯，铂或铝。
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8.发明授权Method for making fuel cladding having zirconium barrier layers and inner liners 失效制造具有锆阻挡层和内衬的燃料包层的方法
公开(公告)号：US5383228A
公开(公告)日：1995-01-17
申请号：US91672
申请日：1993-07-14
CPC分类号： G21C3/06 , C22F1/186 , G21C21/02 , G21C21/10 , G21C3/20 , G21C3/18 , G21Y2002/103 , G21Y2002/104 , G21Y2002/302 , G21Y2002/303 , G21Y2004/10 , G21Y2004/20 , G21Y2004/40 , Y02E30/40
摘要： The present invention provides a cladding having an outer circumferential substrate, a zirconium barrier layer metallurgically bonded to the inside surface of the substrate and an inner circumferential liner metallurgically bonded to the zirconium barrier. The inner circumferential liner is more ductile than conventional Zircaloy. The low ductility of the inner circumferential liner is obtained by using a zirconium alloy containing a low tin content (e.g. less than 1.2% by weight) and/or a low oxygen content (e.g. less than 1000 ppm). The inner circumferential liner is less than about 25 micrometers thick.
摘要翻译： 本发明提供了一种具有外周基板，冶金结合到基板的内表面的锆阻挡层和与锆阻挡层冶金结合的内周衬套的包层。 内周衬套比常规Zircaloy更具延展性。 通过使用含有低锡含量（例如小于1.2重量％）和/或低氧含量（例如小于1000ppm）的锆合金，可获得内周衬套的低延展性。 内周衬垫的厚度小于25微米。
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9.发明授权Elliptical metal fuel/cladding barrier and related method for improving heat transfer 失效椭圆金属燃料/包层屏障及相关的改善传热的方法
公开(公告)号：US5377246A
公开(公告)日：1994-12-27
申请号：US967642
申请日：1992-10-28
摘要： A barrier tube of non-circular cross section is arranged in the space between the stainless steel cladding and metal fuel slugs of a liquid metal reactor. The non-circular shape of this barrier design promotes improved thermal bonding in both the cladding/barrier and barrier/fuel interface regions. The non-circular barrier results in three areas with liquid metal thermal bond gaps having an angle which approaches that for a metal fuel pin without a barrier. Thus, the degree of circumferential unbonding will be less than that which results in localized fuel melting during radiation.
摘要翻译： 在液态金属反应器的不锈钢包层和金属燃料块之间的空间中布置有非圆形横截面的阻挡管。 该阻挡设计的非圆形形状促进了包层/屏障和阻挡/燃料界面区域中的改善的热粘合。 非圆形障碍导致三个区域，其中液态金属热粘合间隙的角度接近金属燃料销而没有屏障的角度。 因此，周向未结合的程度将小于在辐射期间局部燃料熔化的程度。
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公开(公告)号：US4990303A
公开(公告)日：1991-02-05
申请号：US211182
申请日：1988-06-24
申请人： William J. Bryan , Nathan Fuhrman , David C. Jones
发明人： William J. Bryan , Nathan Fuhrman , David C. Jones
IPC分类号： G21C3/18
摘要： A fuel element for a nuclear reactor having a zirconium-tin alloy cladding tube, with a thin coating of particles of enriched boron-containing compound burnable poison particles, deposited from a liquid sol-gel which includes a glass binder material.
摘要翻译： 一种用于具有锆锡合金包层管的核反应堆的燃料元件，其具有由包括玻璃粘合剂材料的液体溶胶 - 凝胶沉积的富含含硼化合物可燃性毒物颗粒的薄涂层。
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