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1. 发明申请

US20060050836A1 Nuclear fuel rod 有权
公开(公告)号：US20060050836A1
公开(公告)日：2006-03-09
申请号：US10537954
申请日：2003-12-05
申请人： Gunnar Hultquist , Magnus Limback , Per Tagtstrom , Erik Hornlund
发明人： Gunnar Hultquist , Magnus Limback , Per Tagtstrom , Erik Hornlund
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.

2. 发明申请

US20080025454A1 Method for Operating a Reactor of a Nuclear Plant 审中-公开
标题翻译：核电厂反应堆运行方法
公开(公告)号：US20080025454A1
公开(公告)日：2008-01-31
申请号：US11629497
申请日：2005-06-01
申请人： Magnus Limback , Kristina Ryttersson , Sture Helmersson
发明人： Magnus Limback , Kristina Ryttersson , Sture Helmersson
IPC分类号： G21C7/08
CPC分类号： G21C7/08 , G21C17/04 , G21D3/06 , Y02E30/39
摘要： A reactor of a nuclear plant encloses a core having a plurality of fuel elements and a number of control rods. Each fuel element includes a plurality of fuel rods each including a cladding and nuclear fuel enclosed in an inner space of the cladding. Each control rod is insertable to and extractable from a respective position between or in respective fuel elements to influence the effect of the reactor. A method for operating the reactor includes operating the reactor at a normal effect during a normal state, monitoring the reactor for detecting a defect on the cladding of any fuel rod, reducing the effect of the reactor after the detection of a defect, operating the reactor during a particular state during a time period during which the reactor at least during a part time is operated at the reduced effect in relation to the normal effect, and extracting the inserted control rods after the time period for continuing operation of the reactor at substantially the normal state.
摘要翻译：核电站的反应堆包围具有多个燃料元件和多个控制棒的芯。每个燃料元件包括多个燃料棒，每个燃料棒包括封装在包层的内部空间中的包层和核燃料。每个控制杆可插入到相应燃料元件之间或相应燃料元件中的相应位置并且可从其中提取，以影响反应器的效果。用于操作反应器的方法包括在正常状态下以正常效应操作反应器，监测反应器以检测任何燃料棒的包壳上的缺陷，在检测到缺陷后降低反应器的作用，操作反应器在特定状态期间，至少在一段时间内反应堆以相对于正常效应降低的效果运行的时间段内，以及在反应器的持续运行的时间段之后提取所插入的控制棒，正常状态

3. 发明申请

US20050265513A1 Method, use and device concerning cladding tubes for nuclear fuel and a fuel assembly for a nuclear boiling water reactor 有权
标题翻译：用于核燃料的包覆管和核沸水反应堆的燃料组件的方法，用途和装置
公开(公告)号：US20050265513A1
公开(公告)日：2005-12-01
申请号：US10517020
申请日：2003-06-04
申请人： Mats Dahlback , Magnus Limback
发明人： Mats Dahlback , Magnus Limback
IPC分类号： C22C16/00 , C22F1/00 , C22F1/18 , G21C3/06 , G21C3/07 , G21C3/20 , G21C21/02 , G21C3/32
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）和冶金结合到外部部件（10）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。

4. 发明申请

US20090071579A1 FUEL BOX IN A BOILING WATER NUCLEAR REACTOR 有权
标题翻译：燃料锅炉在一个锅炉水核反应堆
公开(公告)号：US20090071579A1
公开(公告)日：2009-03-19
申请号：US12159329
申请日：2005-06-22
申请人： Lars Hallstadius , Mats Dahlback , Magnus Limback , John Bates , James Dougherty
发明人： Lars Hallstadius , Mats Dahlback , Magnus Limback , 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都转变成β铌颗粒。

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