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11. 发明授权

US06907891B2 Radioactive substance decontamination method and apparatus 失效
公开(公告)号：US06907891B2
公开(公告)日：2005-06-21
申请号：US10078347
申请日：2002-02-21
申请人： Kazumi Anazawa , Motoaki Sakashita , Makoto Nagase
发明人： Kazumi Anazawa , Motoaki Sakashita , Makoto Nagase
IPC分类号： G21F9/28 , G21F9/00
CPC分类号： G21F9/001
摘要： A radioactive substance decontamination method and apparatus which decontaminates a metal member contaminated by radioactive substance in a short period of time. This apparatus has (1) multiple reducing decontamination tanks having different radiation control values; (2) a carrier for immersing the metal member into the multiple reducing decontamination tanks and a washing tank; (3) a tube for transferring into the second reducing decontamination tank the reducing decontamination agent in the first reducing decontamination tank; (4) a reducing agent decomposer for decomposing a component contained in the reducing decontamination agent of the reducing decontamination tank where the radiation control value is the highest out of the reducing decontamination tanks connected by the tube; and (5) a washing tank for washing the reducing decontamination agent deposited on the decontaminated metal member.

12. 发明申请

US20050014989A1 Radioactive substance decontamination method and apparatus 审中-公开
标题翻译：放射性物质去污方法及装置
公开(公告)号：US20050014989A1
公开(公告)日：2005-01-20
申请号：US10807156
申请日：2004-03-24
申请人： Kazumi Anazawa , Motoaki Sakashita , Makoto Nagase
发明人： Kazumi Anazawa , Motoaki Sakashita , Makoto Nagase
IPC分类号： G21F9/28 , G21F9/00
CPC分类号： G21F9/001
摘要： A radioactive substance decontamination method and apparatus which decontaminates a metal member contaminated by radioactive substance in a short period of time. This apparatus has (1) multiple reducing decontamination tanks having different radiation control values; (2) a carrier for immersing the metal member into the multiple reducing decontamination tanks and a washing tank; (3) a tube for transferring into the second reducing decontamination tank the reducing decontamination agent in the first reducing decontamination tank; (4) a reducing agent decomposer for decomposing a component contained in the reducing decontamination agent of the reducing decontamination tank where the radiation control value is the highest out of the reducing decontamination tanks connected by the tube; and (5) a washing tank for washing the reducing decontamination agent deposited on the decontaminated metal member.
摘要翻译：一种放射性物质去污方法和设备，可在短时间内对被放射性物质污染的金属构件进行净化。该装置具有（1）具有不同辐射控制值的多个还原净化槽; （2）用于将金属构件浸入多个还原净化槽和洗涤槽中的载体; （3）用于将第一还原去污罐中的还原去污剂转移到第二还原去污罐中的管; （4）一种还原剂分解器，用于分解由所述管连接的还原净化槽中的最大值的所述还原净化槽的还原去污剂中所含的成分，和（5）用于洗涤沉积在去污金属构件上的还原去污剂的洗涤槽。

13. 发明授权

US07811392B2 Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus 有权
标题翻译：核电厂反应堆组件和铁素体成膜装置放射性核素沉积的抑制方法
公开(公告)号：US07811392B2
公开(公告)日：2010-10-12
申请号：US11485984
申请日：2006-07-14
申请人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Youichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
发明人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Youichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
IPC分类号： C23C8/40 , G21C9/00
CPC分类号： G21C13/087 , C23F15/00 , G21C19/00 , G21Y2002/201 , G21Y2004/40 , Y02E30/40
摘要： It is an object of the present invention to efficiently suppress radionuclide deposition on a reactor component of nuclear power plant. Radionuclide deposition on the surface of a metallic reactor component of nuclear power plant is suppressed by forming a ferrite film on the component, wherein the film is formed, after decontamination for removing radionuclides contaminants from the component surface is completed and before the plant is started up, by contacting a treatment solution which mixes a first agent containing the iron (II) ions, a second agent for oxidizing the iron (II) ions into the iron (III) ions and a third agent for adjusting pH level of a solution to 5.5 to 9.0 in this order with the reactor component surface.
摘要翻译：本发明的目的是有效地抑制放射性核素沉积在核电站的反应器部件上。核电站金属反应堆部件表面上的放射性核素沉积被抑制，在部件上形成铁氧体膜，其中形成膜，在从组件表面去除放射性核素污染物的净化完成之后并且在工厂启动之前通过使含有铁（II）离子的第一试剂混合的处理溶液与将铁（II）离子氧化成铁（III）离子的第二试剂和用于将溶液的pH水平调节至5.5的第三试剂接触以9.0的顺序与反应器组件表面。

14. 发明申请

US20080149028A1 Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus 审中-公开
标题翻译：核电厂反应堆组件和铁素体成膜装置放射性核素沉积的抑制方法
公开(公告)号：US20080149028A1
公开(公告)日：2008-06-26
申请号：US11797344
申请日：2007-05-02
申请人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
发明人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
IPC分类号： B05C13/02
CPC分类号： G21C19/42 , G21C17/0225 , G21F9/06 , G21F9/12 , G21F9/28
摘要： A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.
摘要翻译：一种抑制放射性核素在核电厂部件上沉积的方法包括通过使包含铁（II）离子的第一化学品，用于氧化铁（II）离子的第二种化学品与铁（III）离子）接触来形成铁氧体膜，以及第三种化学品，用于在去除在金属表面形成的污染物的净化步骤的净化步骤的整理阶段中将含有第一和第二化学品的混合物的处理溶液的pH调节至5.5至9.0的金属构件表面构成核电站的成员，并且通过铁氧体膜抑制放射性核素在金属构件上的沉积。

15. 发明授权

US5715290A Reactor water control method in BWR power plant, BWR power plant having low radioactivity concentration reactor water and fuel clad tube for BWR 失效
标题翻译： BWR发电厂反应堆水控制方法，BWR发电厂低放射性浓度反应堆水和BWR燃料复合管
公开(公告)号：US5715290A
公开(公告)日：1998-02-03
申请号：US260472
申请日：1994-06-14
申请人： Naohito Uetake , Masayoshi Kondoh , Makoto Nagase , Hideyuki Hosokawa , Teruo Hara , Yamato Asakura , Katsumi Ohsumi , Kazuhiko Akamine , Kouichi Yamane
发明人： Naohito Uetake , Masayoshi Kondoh , Makoto Nagase , Hideyuki Hosokawa , Teruo Hara , Yamato Asakura , Katsumi Ohsumi , Kazuhiko Akamine , Kouichi Yamane
IPC分类号： G21C3/06 , G21C17/022 , G21C19/30 , G21C19/307 , G21D1/00 , G21D3/08 , G21C19/28
CPC分类号： G21C17/0225 , G21C19/307
摘要： In reactor water control for a BWR power plant during an operation cycle after loading new fuel rods in the BWR power plant, an operation is performed which accelerates deposition of crud on the fuel rods until the deposition amount of the crud on the fuel rods reaches a predetermined target value within the operation cycle concerned. After the deposition amount of the crud has reached the predetermined target value, the crud deposition accelerating operation is terminated, whereby even when loading new fuel rods such as Zr liner type fuel rods having a surface on which metal ion deposition has been difficult, radioactivity in the reactor water is efficiently reduced.
摘要翻译：在BWR发电厂装载新的燃料棒之后的操作循环期间，在BWR发电厂的反应堆水控制中，执行加速燃料棒上的原油沉积的操作，直到燃料棒上的原油的沉积量达到相关操作循环中的预定目标值。在原油的沉积量达到预定目标值之后，终止原油沉积加速操作，由此即使当装载具有难以进行金属离子沉积的表面的诸如Zr衬垫式燃料棒的新的燃料棒时，放射性反应器水被有效地减少。

16. 发明申请

US20110176649A1 Suppression Method of Radionuclide Deposition on Reactor Component of Nuclear Power Plant 有权
标题翻译：核电厂反应堆部件放射性核素沉积抑制方法
公开(公告)号：US20110176649A1
公开(公告)日：2011-07-21
申请号：US12984326
申请日：2011-01-04
申请人： Hideyuki HOSOKAWA , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
发明人： Hideyuki HOSOKAWA , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
IPC分类号： G21C9/00
CPC分类号： G21C19/42 , G21C17/0225 , G21F9/06 , G21F9/12 , G21F9/28
摘要： A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.
摘要翻译：一种抑制放射性核素在核电厂部件上沉积的方法包括通过使含有铁（II）离子的第一化学物质，将铁（II）离子氧化成铁（III）离子的第二种化学物质）与第第三种化学品，用于在去除在金属表面形成的污染物的净化步骤的净化步骤的整理阶段中调节含有第一和第二化学品的混合物的处理溶液的pH为5.5至9.0的金属构件表面构成核电站的成员，并且通过铁氧体膜抑制放射性核素在金属构件上的沉积。

17. 发明授权

US07769124B2 Natural circulation boiling water reactor and handling method thereof 有权
标题翻译：自然循环沸水反应器及其处理方法
公开(公告)号：US07769124B2
公开(公告)日：2010-08-03
申请号：US12132141
申请日：2008-06-03
申请人： Atsushi Watanabe , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
发明人： Atsushi Watanabe , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
IPC分类号： G21C17/00 , G21C19/00
CPC分类号： G21C1/084 , G21C15/00 , G21Y2002/402 , G21Y2004/30 , Y02E30/31
摘要： A handling method for a natural circulation boiling water reactor having a chimney having cylindrical chimney shell disposed above a core in a reactor pressure vessel, a plurality of square tubes disposed in the chimney shell, and a grid support plate with grid holes supporting and in communication with a lower end portion of the square tubes so that adjacent square tubes are disposed at an interval which exceeds the width of one square tube between them. The method includes steps shifting predetermined ones of the square tubes to the interval between the square tubes, and performing maintenance and inspection of members around a core via the grid holes which appear at positions from which the predetermined square tubes are taken out due to the shift of the predetermined square tubes.
摘要翻译：一种天然循环沸水反应器的处理方法，该反应器具有烟囱，该烟囱具有设置在反应堆压力容器内的核心上方的圆筒形烟囱壳，设置在烟囱式外壳中的多个方管，以及支撑和通信的格栅支撑板具有方管的下端部分，使得相邻的方管以超过它们之间的一个方管的宽度的间隔设置。该方法包括以下步骤：将方管中的预定方式移动到方管之间的间隔，并且通过栅格孔执行对围绕芯的构件的维护和检查，栅格孔出现在由于偏移而从其中取出预定方管的位置的预定方形管。

18. 发明授权

US07889828B2 Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus 有权
标题翻译：核电厂反应堆组件和铁素体成膜装置放射性核素沉积的抑制方法
公开(公告)号：US07889828B2
公开(公告)日：2011-02-15
申请号：US12410558
申请日：2009-03-25
申请人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
发明人： Hideyuki Hosokawa , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
IPC分类号： G21C9/00
CPC分类号： G21C19/42 , G21C17/0225 , G21F9/06 , G21F9/12 , G21F9/28
摘要： A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.
摘要翻译：一种抑制放射性核素在核电厂部件上沉积的方法包括通过使包含铁（II）离子的第一化学品，用于氧化铁（II）离子的第二种化学品与铁（III）离子）接触来形成铁氧体膜，以及第三种化学品，用于在去除在金属表面形成的污染物的净化步骤的净化步骤的整理阶段中将含有第一和第二化学品的混合物的处理溶液的pH调节至5.5至9.0的金属构件表面构成核电站的成员，并且通过铁氧体膜抑制放射性核素在金属构件上的沉积。

19. 发明申请

US20090141849A1 Suppression Method of Radionuclide Deposition on Reactor Component of Nuclear Power Plant and Ferrite Film Formation Apparatus 有权
公开(公告)号：US20090141849A1
公开(公告)日：2009-06-04
申请号：US12364556
申请日：2009-02-03
申请人： Hideyuki HOSOKAWA , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
发明人： Hideyuki HOSOKAWA , Makoto Nagase , Kazushige Ishida , Yoichi Wada , Naoshi Usui , Motohiro Aizawa , Motomasa Fuse
IPC分类号： G21F9/00
CPC分类号： G21C19/42 , G21C17/0225 , G21F9/06 , G21F9/12 , G21F9/28
摘要： A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.

20. 发明申请

US20070201607A1 NATURAL CIRCULATION BOILING WATER REACTOR AND HANDLING METHOD THEREOF 有权
标题翻译：自然循环锅炉水反应器及其处理方法
公开(公告)号：US20070201607A1
公开(公告)日：2007-08-30
申请号：US11680072
申请日：2007-02-28
申请人： Atsushi WATANABE , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
发明人： Atsushi WATANABE , Yoichi Wada , Makoto Nagase , Kazushige Ishida , Hideyuki Hosokawa , Fumihito Hirokawa , Masaaki Tsubaki , Shiro Takahashi
IPC分类号： G21C15/00
CPC分类号： G21C1/084 , G21C15/00 , G21Y2002/402 , G21Y2004/30 , Y02E30/31
摘要： A natural circulation boiling water reactor provides to a chimney with a plurality of tubes. That is to say, each of the plurality of tubes partitions the coolant flow path above a core. Thus, unlike the conventional natural circulation boiling water reactor providing the flow path partition wall grid in which the plate members are made integral by welding and coolant flow paths are partitioned, the chimney of the natural circulation boiling water reactor can reduce the number of welded portions because the edges of the four corners of each flow path do not need to be welded. The natural circulation boiling water reactor can avoid removal as a single unit, as in the case of the flow path partition wall grid in the conventional natural circulation boiling water reactor, by detaching each tube. The chimney can be easily detached from the reactor pressure vessel.
摘要翻译：自然循环沸水反应器提供给具有多个管的烟囱。也就是说，多个管中的每一个将冷却剂流动路径分隔在核心上方。因此，与传统的自然循环沸水反应器不同，通过焊接使板构件成为一体的流路分隔壁网格，并且冷却剂流动路径被分隔，自然循环沸水反应器的烟囱可以减少焊接部分的数量因为每个流路的四个角的边缘不需要焊接。自然循环沸水反应堆可以避免作为单一单元的去除，如在传统的自然循环沸水反应器中的流路分隔壁网格的情况下，通过分离每个管。烟囱可以容易地与反应堆压力容器分离。

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