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21. 发明授权

US07907695B2 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：US07907695B2
公开(公告)日：2011-03-15
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： G21C3/56
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。

22. 发明申请

US20110216872A1 Boiling Water Nuclear Plant and Steam Dryer 有权
标题翻译：沸水核电厂和蒸汽干燥机
公开(公告)号：US20110216872A1
公开(公告)日：2011-09-08
申请号：US13030189
申请日：2011-02-18
申请人： Yuko HINO , Kazushige Ishida , Naoshi Usui
发明人： Yuko HINO , Kazushige Ishida , Naoshi Usui
IPC分类号： G21C19/317
CPC分类号： G21C19/317 , Y02E30/40
摘要： In the boiling water nuclear plant of the present invention, a steam dryer is disposed in a reactor pressure vessel. Materials that have capability of capturing nitrogen compounds containing N-16 are supported on porous member. The porous members are placed in a region where steam goes through in the steam dryer. For example, both or either of perforated plates installed in the steam dryer is constituted of the porous member on which N-16 capture material is supported. When steam containing N-16 goes through the perforated plates, the N-16 is captured by the porous member, whereby the N-16 transfer amount into the turbine system is reduced.
摘要翻译：在本发明的沸水核电厂中，在反应堆压力容器中设置蒸汽干燥机。具有捕获含有N-16的氮化合物的能力的材料被支撑在多孔构件上。多孔构件放置在蒸汽干燥器中蒸汽穿过的区域中。例如，安装在蒸汽干燥器中的两个或多个多孔板由支撑N-16捕获材料的多孔构件构成。当含有N-16的蒸汽穿过多孔板时，N-16被多孔构件捕获，从而减少进入涡轮系统的N-16转移量。

23. 发明授权

US08774342B2 Boiling water nuclear plant and steam dryer 有权
标题翻译：沸水核电厂和蒸汽烘干机
公开(公告)号：US08774342B2
公开(公告)日：2014-07-08
申请号：US13030189
申请日：2011-02-18
申请人： Yuko Hino , Kazushige Ishida , Naoshi Usui
发明人： Yuko Hino , Kazushige Ishida , Naoshi Usui
IPC分类号： G21C15/16 , B01D53/54 , G21C15/00 , B01D53/00
CPC分类号： G21C19/317 , Y02E30/40
摘要： In the boiling water nuclear plant of the present invention, a steam dryer is disposed in a reactor pressure vessel. Materials that have capability of capturing nitrogen compounds containing N-16 are supported on porous member. The porous members are placed in a region where steam goes through in the steam dryer. For example, both or either of perforated plates installed in the steam dryer is constituted of the porous member on which N-16 capture material is supported. When steam containing N-16 goes through the perforated plates, the N-16 is captured by the porous member, whereby the N-16 transfer amount into the turbine system is reduced.
摘要翻译：在本发明的沸水核电厂中，在反应堆压力容器中设置蒸汽干燥机。具有捕获含有N-16的氮化合物的能力的材料被支撑在多孔构件上。多孔构件放置在蒸汽干燥器中蒸汽穿过的区域中。例如，安装在蒸汽干燥器中的两个或多个多孔板由支撑N-16捕获材料的多孔构件构成。当含有N-16的蒸汽穿过多孔板时，N-16被多孔构件捕获，从而减少进入涡轮系统的N-16转移量。

24. 发明授权

US06549603B1 Method of chemical decontamination 有权
标题翻译：化学去污方法
公开(公告)号：US06549603B1
公开(公告)日：2003-04-15
申请号：US09657530
申请日：2000-09-08
申请人： Kazushige Ishida , Kazumi Anazawa , Yoshiyuki Takamori , Naohito Uetake , Makoto Nagase , Hiroo Yoshikawa , Tadashi Tamagawa
发明人： Kazushige Ishida , Kazumi Anazawa , Yoshiyuki Takamori , Naohito Uetake , Makoto Nagase , Hiroo Yoshikawa , Tadashi Tamagawa
IPC分类号： G21F900
CPC分类号： G21C17/0225 , G21F9/004 , G21Y2002/601 , G21Y2004/20
摘要： To suppress a decrease of thickness due to corrosion of structural members and to achieve a removal of radionuclides with good efficiency in a nuclear power plant, oxidation decontamination is first conducted. An aqueous potassium permanganate solution is supplied from a circulation line to a reactor pressure vessel, which is a stainless steel structural member, and a reactor water cleanup system piping and a drain piping, which are carbon steel structural members. These structural members are oxidation-decontaminated by the action of potassium permanganate. Then the above-mentioned structural members are reduction-decontaminated by using an aqueous oxalic acid solution. The aqueous oxalic acid solution contains hydrazine.
摘要翻译：为了抑制由于结构构件的腐蚀而导致的厚度减小并且在核电站中实现高效率地去除放射性核素，首先进行氧化去污。将高锰酸钾溶液从循环管线供给到作为碳素钢结构件的反应器压力容器，其为不锈钢结构构件，反应器水净化系统管道和排水管道。这些结构构件通过高锰酸钾的作用进行氧化去污。然后通过使用草酸水溶液还原去除上述结构构件。草酸水溶液含有肼。

25. 发明授权

US06335475B1 Method of chemical decontamination 有权
标题翻译：化学去污方法
公开(公告)号：US06335475B1
公开(公告)日：2002-01-01
申请号：US09405217
申请日：1999-09-27
申请人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
发明人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
IPC分类号： G21F900
CPC分类号： G21F9/004
摘要： Processes of reductive decontamination using an agent containing at least two kinds of components, and then decomposing the agent using an apparatus for decomposing at least two kinds of chemical substances in the agent, are employed in chemical decontamination. A catalyst decomposition column in an upstream side of an ion exchange resin column and a hydrogen peroxide injection apparatus in a further upstream side, reduce the amount of waste products caused by a chemical decontaminating agent where a mixed decontaminating agent for a composition trapped in a cation resin column and for a composition trapped in an anion exchange resin are used for the chemical decontaminating agent, selectively decompose the composition trapped in the cation resin column in an inlet side of a cleaning apparatus when radioactive nuclides in the decontaminating agent are cleansed using the cation resin column during decontamination, and decompose both compositions after completion of the decontamination. The chemical decontamination thus selectively decomposes the chemical decontaminating agent, which is a component of the load to the cation resin column. The chemical decontamination moderates corrosion of material by using a chemical decontaminating agent decomposing apparatus capable of decomposing the components trapped by the cation exchange resin and components trapped by an anion exchange resin at the same time.
摘要翻译：使用含有至少两种组分的试剂进行还原去污的方法，然后使用用于在试剂中分解至少两种化学物质的装置分解试剂，用于化学去污。在离子交换树脂柱的上游侧的催化剂分解塔和进一步的上游侧的过氧化氢注入装置，减少由化学去污剂引起的废物的量，其中用于组合物捕获在阳离子中的混合净化剂树脂柱和捕获在阴离子交换树脂中的组合物用于化学净化剂，当清除剂中的放射性核素用阳离子清洗时，选择性地分解在清洁装置的入口侧捕获在阳离子树脂柱中的组合物在去污过程中树脂柱，并且在去污完成后分解两种组合物。化学去污因此选择性地将作为负荷成分的化学净化剂分解到阳离子树脂柱中。化学去污通过使用能够分解被阳离子交换树脂捕获的成分和同时被阴离子交换树脂捕获的成分的化学除污剂分解装置来缓和材料的腐蚀。

26. 发明授权

US06973154B2 Method of chemical decontamination and system therefor 有权
标题翻译：化学除污方法及其系统
公开(公告)号：US06973154B2
公开(公告)日：2005-12-06
申请号：US10000338
申请日：2001-12-04
申请人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
发明人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
IPC分类号： G21F9/00
CPC分类号： G21F9/004
摘要： In a chemical decontamination method of chemically decontaminating radioactive nuclides from a metallic material, oxalic acid and hydrazine are injected as a reductive decontaminating agent into water that is in contact with the metallic material. Injection of the hydrazine is stopped after a cation resin arranged in a circulation line connected to the metallic material breaks, and at least the oxalic acid and the hydrazine in the reductive decontaminating agent are decomposed using a decomposing catalyst.
摘要翻译：在从金属材料中化学去除放射性核素的化学去污方法中，将草酸和肼作为还原净化剂注入与金属材料接触的水中。在与金属材料连接的循环管线中布置的阳离子树脂断裂后，停止注入肼，并且使用分解催化剂将还原性净化剂中的至少草酸和肼分解。

27. 发明授权

US06921515B2 Apparatus for chemical decontamination 有权
标题翻译：化学去污设备
公开(公告)号：US06921515B2
公开(公告)日：2005-07-26
申请号：US10000083
申请日：2001-12-04
申请人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
发明人： Makoto Nagase , Naohito Uetake , Kazushige Ishida , Fumito Nakamura , Kazumi Anazawa , Tadashi Tamagawa , Hiroo Yoshikawa
IPC分类号： G21F9/28 , G21F9/00 , B32B27/04
CPC分类号： G21F9/004
摘要： In a chemical decontamination apparatus, a catalyst decomposition column in an upstream side of an ion exchange resin column and a hydrogen peroxide injection apparatus in a further upstream side, reduce the amount of waste products caused by a chemical decontaminating agent where a mixed decontaminating agent for a composition trapped in a cation resin column and for a composition trapped in an anion exchange resin are used for the chemical decontaminating agent, selectively decompose the composition trapped in the cation resin column in an inlet side of a cleaning apparatus when radioactive nuclides in the decontaminating agent are cleansed using the cation resin column during decontamination, and decompose both compositions after completion of the decontamination. The chemical decontamination thus selectively decomposes the chemical decontaminating agent, which is a component of the load to the cation resin column.
摘要翻译：在化学去污装置中，离子交换树脂柱的上游侧的催化剂分解塔和上游侧的过氧化氢注入装置减少由化学净化剂引起的废物的量，其中混合净化剂将用于阴离子交换树脂的组分捕获在阳离子树脂柱中，并且用于阴离子交换树脂中的组合物用于化学去污剂中，当在去污剂中放射性核素时，选择性地分解在清洁设备的入口侧捕获在阳离子树脂柱中的组合物在去污期间使用阳离子树脂柱清洁剂，并且在去污完成后分解两种组合物。化学去污因此选择性地将作为负荷成分的化学净化剂分解到阳离子树脂柱中。

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