公开(公告)号：US20100111242A1

公开(公告)日：2010-05-06

申请号：US12595572

申请日：2008-04-07

申请人： Sture Helmersson ,  Magnus Limbäck ,  Jonathan Wright

发明人： Sture Helmersson ,  Magnus Limbäck ,  Jonathan Wright

IPC分类号： G21C7/32 ,  G21C7/08

CPC分类号： G21D3/06 ,  G21Y2002/50 ,  G21Y2004/40 ,  Y02E30/40

摘要： A method of operating a nuclear reactor is disclosed. The reactor (1) encloses a core having a plurality of fuel rods (9). Each fuel rod (9) includes a cladding and fuel pellets of a nuclear fuel. The fuel pellets are arranged in an inner space of the cladding leaving a free volume comprising an upper plenum, a lower plenum and a pellet-cladding gap. The reactor is operated at a normal power and a normal inlet sub-cooling during a normal state. The reactor is monitored for detecting a defect on the cladding of any of the fuel rods. The operation of the reactor is changed to a particular state after detecting such a defect. The particular state permits an increase of the free volume in the defect fuel rod. The reactor is operated at the particular state during a limited time period, after which the reactor is operated at the normal state.

摘要翻译： 公开了一种操作核反应堆的方法。 反应器（1）包围具有多个燃料棒（9）的芯体。 每个燃料棒（9）包括核燃料的包层和燃料颗粒。 燃料颗粒被布置在包层的内部空间中，留下自由体积，其包括上部增压室，下部增压室和颗粒包层间隙。 在正常状态下，反应器以正常功率运行，正常进气冷却。 监测反应器以检测任何燃料棒的包层上的缺陷。 在检测到这样的缺陷之后，反应器的操作变为特定状态。 该特定状态允许增加缺陷燃料棒中的自由体积。 反应器在特定状态下在有限的时间段内运行，此后反应器在正常状态下运行。

公开(公告)号：US07715518B2

公开(公告)日：2010-05-11

申请号：US10517020

申请日：2003-06-04

申请人： Mats Dahlbäck ,  Magnus Limbäck

发明人： Mats Dahlbäck ,  Magnus Limbäck

IPC分类号： G21C3/00

CPC分类号： C22F1/186 ,  G21C3/07 ,  G21C3/20 ,  G21C21/02 ,  G21Y2002/104 ,  G21Y2002/303 ,  G21Y2004/10 ,  G21Y2004/20 ,  G21Y2004/40 ,  Y02E30/40

摘要： The invention concerns a method of producing a cladding tube for nuclear fuel for a nuclear boiling water reactor. According to the method, a tube is formed which comprises an outer cylindrical component (10) mainly containing zirconium and an inner cylindrical component (20) metallurgically bonded to the outer component (10), wherein also the inner component (20) at least mainly contains zirconium. The inner component (20) has a lower recrystallization temperature than the outer component (10). The cladding tube is final annealed at a temperature and during a time such that the inner component (20) substantially completely recrystallizes and such that the outer component (10) partly recrystallizes but to a lower extent than the inner component (20). The invention also concerns a cladding tube, a fuel assembly for a boiling water reactor as well as the use of a cladding tube.

摘要翻译： 本发明涉及一种生产用于核沸水反应堆的核燃料包层管的方法。 根据该方法，形成管，其包括主要包含锆的外圆柱形部件（10）和与外部部件（10）冶金结合的内部圆柱形部件（20），其中内部部件（20）至少主要 含锆。 内部部件（20）的再结晶温度比外部部件（10）低。 包壳管在温度和时间内最终退火，使得内部部件（20）基本上完全再结晶，并且使得外部部件（10）部分地再结晶但是比内部部件（20）更低的程度。 本发明还涉及包层管，用于沸水反应器的燃料组件以及包壳管的使用。

公开(公告)号：US07570728B2

公开(公告)日：2009-08-04

申请号：US10537954

申请日：2003-12-05

申请人： Gunnar Hultquist ,  Magnus Limbäck ,  Per Tägtström ,  Eric Hörnlund

发明人： Gunnar Hultquist ,  Magnus Limbäck ,  Per Tägtström ,  Eric Hörnlund

IPC分类号： G21C3/00

CPC分类号： G21C21/02 ,  G21C3/16 ,  G21Y2002/303 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/40

摘要： In a nuclear fuel rod a cladding tube is provided having a closed inner space and manufactured from at least one of the materials in the group zirconium and a zirconium-based alloy, and a pile of nuclear fuel pellets arranged in the inner space in the cladding tube. The nuclear fuel pellets fill part of the inner space. A fill gas is arranged in the closed inner space to fill the rest of the inner space. The internal pressure of the fill gas in the nuclear fuel rod amounts to at least 2 bar (abs) or at least 10 bar (abs). The fill gas contains a proportion of inert gas a proportion of carbon monoxide that is greater than 3 volume percent of the fill gas or greater than 2 volume percent of the fill gas.

摘要翻译： 在核燃料棒中，提供具有闭合内部空间并由锆和锆基合金中的至少一种材料制成的包层管，以及布置在包层内部空间中的一堆核燃料颗粒 管。 核燃料颗粒填充内部空间的一部分。 填充气体布置在封闭的内部空间中以填充内部空间的其余部分。 核燃料棒中的填充气体的内部压力至少为2巴（abs）或至少10巴（abs）。 填充气体含有一定比例的惰性气体，一氧化碳的比例大于填充气体的3体积％或大于2体积％的填充气体。

公开(公告)号：US08105448B2

公开(公告)日：2012-01-31

申请号：US12159329

申请日：2005-06-22

申请人： Lars Hallstadius ,  Mats Dahlbäck ,  Magnus Limbäck ,  John Bates ,  James Dougherty

发明人： Lars Hallstadius ,  Mats Dahlbäck ,  Magnus Limbäck ,  John Bates ,  James Dougherty

IPC分类号： C22F1/18 ,  C22C16/00

CPC分类号： C22F1/186 ,  C22C16/00

摘要： A method for manufacturing a sheet metal for use in a boiling water nuclear reactor and such a sheet metal. The method includes providing a material of a zirconium alloy that includes zirconium, and whose main alloying materials include niobium. The material is annealed so that essentially all niobium containing secondary phase particles are transformed to β-niobium particles.

摘要翻译： 一种制造用于沸水核反应堆和这种金属板的金属板的方法。 该方法包括提供包含锆的锆合金材料，其主要合金材料包括铌。 将材料退火，使得基本上所有含铌的次相颗粒转变成铌颗粒。

公开(公告)号：US07292671B1

公开(公告)日：2007-11-06

申请号：US09857606

申请日：1999-12-08

申请人： Mats Dahlbäck ,  Magnus Limbäck ,  Gunnar Wikmark

发明人： Mats Dahlbäck ,  Magnus Limbäck ,  Gunnar Wikmark

IPC分类号： C22C16/00 ,  G21C3/07

CPC分类号： G21C3/07 ,  C22C1/02 ,  C22C16/00 ,  Y02E30/40

摘要： A zirconium-based alloy, suitable for use in a corrosive environment, where it is subjected to increased radiation and comprises 0.5-1.6 percentage by weight Nb and 0.3-0.6 percentage by weight Fe. The alloy is characterised in that it comprises 0.5-0.85 percentage by weight Sn.

摘要翻译： 一种适用于腐蚀性环境的锆基合金，其辐射量增加，其含量为0.5-1.6％，Fe为0.3-0.6％。 该合金的特征在于其含有0.5-0.85重量％的Sn。

公开(公告)号：US07232611B2

公开(公告)日：2007-06-19

申请号：US10204846

申请日：2001-03-20

申请人： Gunnar Hultquist ,  Magnus Limbäck ,  Gunnar Wikmark

发明人： Gunnar Hultquist ,  Magnus Limbäck ,  Gunnar Wikmark

IPC分类号： C23C8/06

CPC分类号： G21C3/07 ,  C22C16/00 ,  C23C8/02 ,  C23C8/10 ,  C23C8/34 ,  C23C8/80 ,  Y02E30/40

摘要： The present invention relates to a component (1) comprising an element (2), which contains zirconium or a zirconium alloy and which has a surface (3) on which a corrosion protective layer (4) is formed, the oxide layer (4) comprising zirconium oxide. The component (1) is intended to be in an oxidising environment (6) and said oxide layer (4) has an outer surface (5) towards said oxidising environment (6). The element (2) comprises a layer (10), that borders said surface (3) and comprises hydrogen and at least one metal from the group of lanthanum elements and/or from the group platinum metals and/or yttrium which in its elemental form or as an oxide have the ability to effectively dissociate oxygen and H2O. The invention also relates to a method for manufacturing the component (1) and a nuclear facility comprising the component (1).

摘要翻译： 本发明涉及一种包含元素（2）的组分（1），其含有锆或锆合金，并且具有形成有腐蚀保护层（4）的表面（3），氧化物层（4） 包括氧化锆。 组分（1）旨在处于氧化环境（6）中，并且所述氧化物层（4）具有朝向所述氧化环境（6）的外表面（5）。 元件（2）包括与所述表面（3）相接合的层（10），并且包含氢和至少一种来自镧元素的金属和/或其元素形式的铂金属和/或钇 或作为氧化物具有有效地解离氧和H 2 O 2的能力。 本发明还涉及用于制造组分（1）的方法和包含组分（1）的核设施。