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71. 发明专利

JP2006038811A Operation method of nuclear power plant 有权
标题翻译：核电厂的运行方法
公开(公告)号：JP2006038811A
公开(公告)日：2006-02-09
申请号：JP2004223415
申请日：2004-07-30
申请人： Hitachi Ltd , Ibaraki Hitachi Joho Service Kk , 株式会社日立製作所 , 茨城日立情報サ−ビス株式会社
发明人： FUSE MOTOMASA , USUI NAOSHI , HOSOKAWA HIDEYUKI , SATO YOSHIAKI , AIZAWA MOTOHIRO , NAGASE MAKOTO
IPC分类号： G21D1/00 , G21C19/307 , G21D3/08
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an operation method for a nuclear power plant containing a procedure for suppressing radioactive components produced during operation to adhere on the pipes and components and to raise dose rate of pipes and components. SOLUTION: The operation method for nuclear power plant is to positively inject oxidation agent such as hydrogen peroxide at the start up of the nuclear power plant or in the first cycle after decontamination of pipes and components based on the new knowledge that later radioactive adhesion can be suppressed by forming a coating on the surface of pipes and components in an environment where oxidation agent exists at the initiation of operation of the nuclear power plant. In the operation method for nuclear power plant, the injection of reduction agent such as hydrogen used for suppressing oxidation agent such as solved hydrogen peroxide is purposely delayed at the start up. Iron concentration is suppressed low not to disturb the coating production function of the oxidation agent and the iron concentration is raised after forming the coating in the operation method. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种核动力装置的操作方法，其包含用于抑制在操作中产生的放射性成分附着在管道和部件上并提高管道和部件的剂量率的程序。解决方案：核电厂的运行方式是在核电厂启动时或第一个周期内积极注入氧化剂如过氧化氢，基于管道和部件的净化，基于后来放射性的新知识通过在核动力装置运转开始时存在氧化剂的环境中的管道和部件的表面上形成涂层，可以抑制粘附。在核电厂的运行方法中，在启动时故意延迟注入用于抑制氧化剂如溶解过氧化氢的氢等还原剂的注入。铁浓度被抑制低，不影响氧化剂的涂层生产功能，并且在操作方法中形成涂层后铁浓度升高。版权所有（C）2006，JPO＆NCIPI

72. 发明专利

JP2005257626A Nuclear power plant 有权
标题翻译：核电站
公开(公告)号：JP2005257626A
公开(公告)日：2005-09-22
申请号：JP2004072818
申请日：2004-03-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA KAZUNARI , WADA YOICHI , NAGASE MAKOTO , TACHIBANA MASAHIKO , AIZAWA MOTOHIRO
IPC分类号： G21C19/307 , G21D1/00 , G21D3/08
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a nuclear power plant enabling removal of ammonia which has flowed out of a reactor pressure vessel. SOLUTION: The nuclear power plant is equipped with an agent injection means 61 that injects a compound, containing nitrogen whose oxidation number is negative into cooling water in a reactor. The plant has a catalyst part, consisting of an adsorbent that adsorbs ammonia and a catalyst that oxidizes and decomposes the ammonia, adsorbed by the adsorbent in a flow channel 3, where the steam generated in the reactor pressure vessel 1 including nuclear fuel passes through and flows. The plant has a structure, where a cation remover is placed farther upstream of feedwater heater 27 that heats the water condensed by a condenser 19, upstream to the flow of water in a flow channel 29 for guiding and feeding the water condensed by an oxidative decomposition means 5 for oxidizing and decomposing ammonia or the condenser 19, to the reactor pressure vessel 1. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够除去从反应堆压力容器流出的氨的核电站。解决方案：核电厂配备有将反应器中含有氧化数为负的氮化合物注入冷却水的试剂注入装置61。植物具有催化剂部分，其由吸附氨的吸附剂和在流动通道3中被吸附剂吸附的氨氧化和分解的催化剂，其中在包括核燃料的反应堆压力容器1中产生的蒸汽通过，流动。该设备具有一种结构，其中将阳离子去除剂放置在给水加热器27的上游更远处，该加热器加热由冷凝器19冷凝的水，在流动通道29中的水流的上游，用于引导和供给通过氧化分解用于将氨或冷凝器19氧化和分解到反应堆压力容器1的装置5。版权所有（C）2005，JPO＆NCIPI

73. 发明专利

JPH068913B2 失效
公开(公告)号：JPH068913B2
公开(公告)日：1994-02-02
申请号：JP16212585
申请日：1985-07-24
申请人： HITACHI LTD
发明人： OOHASHI TAKEYA , PPONDA TAKU , FURUYA YASUMASA , KASHIMURA EIJI , MINATO AKIRA , OOSUMI KATSUMI , AIZAWA MOTOHIRO
IPC分类号： G21F9/00 , G21D1/00 , G21D3/08

74. 发明专利

JP2008051530A Elution suppression method for nickel and cobalt from structure material 有权
标题翻译：结构材料镍和钴的抑制方法
公开(公告)号：JP2008051530A
公开(公告)日：2008-03-06
申请号：JP2006225331
申请日：2006-08-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGASE MAKOTO , HOSOKAWA HIDEYUKI , ISHIDA KAZUNARI , MORISAWA SATOSHI , SAKASHITA MOTOAKI , AIZAWA MOTOHIRO
IPC分类号： G21D1/00 , G21C3/34 , G21C5/00 , G21C7/10 , G21F9/00
CPC分类号： G21F9/005
摘要： PROBLEM TO BE SOLVED: To provide an elution suppression method of nickel and cobalt from a nuclear reactor structure material, capable of suppressing furthermore elution of nickel and cobalt which are the parent nuclides of a radioactive nuclide.
SOLUTION: The nuclear reactor structure material (for example, a spacer spring 32) is immersed into pure water in a treatment tank 5. The pure water is heated up to 90°C by a heater 7. Iron formate (iron(II) ion containing solution) in an iron formate tank 9, hydrogen peroxide in a hydrogen peroxide tank 11 and hydrazine in a hydrazine tank 13 are injected into a pipe and guided into the treatment tank 5, respectively. Injection of iron formate is performed, until the iron(II) ion concentration in the pure water becomes 200 ppm or higher. The pH is adjusted to be in the range of 5.5-9.0 by injection of hydrazine. A dense and firm magnetite coat, for suppressing elution of cobalt or the like from the nuclear reactor structure material, is formed on the surface of the nuclear reactor structure material by this treatment.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供来自核反应堆结构材料的镍和钴的洗脱抑制方法，能够抑制作为放射性核素的母体核素的镍和钴的进一步洗脱。解决方案：将核反应堆结构材料（例如，间隔弹簧32）浸入处理槽5中的纯水中。纯水通过加热器7加热至90℃。甲酸铁（铁（ II）离子溶液），过氧化氢罐11中的过氧化氢和肼罐13中的肼分别注入管道并引导到处理槽5中。进行甲酸铁的注入，直至纯水中的铁（II）离子浓度变为200ppm以上。通过注射肼将pH调节至5.5-9.0的范围内。通过这种处理，在核反应堆结构材料的表面上形成用于抑制钴等从核反应堆结构材料的洗脱的致密且牢固的磁铁矿涂层。版权所有（C）2008，JPO＆INPIT

75. 发明专利

JP2006038684A Reactor water recovery device 审中-公开
标题翻译：反应器水回收装置
公开(公告)号：JP2006038684A
公开(公告)日：2006-02-09
申请号：JP2004220214
申请日：2004-07-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATAKE MASATOSHI , AIZAWA MOTOHIRO , OWADA KAZUO , ISHIDA KAZUNARI
IPC分类号： G21C19/307 , G21D3/00 , G21F9/12
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a reactor water recovery device decomposing quickly hydrogen peroxide contained in a nuclear reactor system or in reactor water and returning it to a desired place.
SOLUTION: This reactor water recovery device 12 wherein a catalyst having high decomposability of hydrogen peroxide formed by carrying a noble metal on activated carbon is installed on a reactor water system pipe 13 between a reactor well 9 and a condensate storage tank 4. When the reactor water is recovered from the reactor well 9 into the condensate storage tank 4, hydrogen peroxide included in the reactor water is decomposed, to thereby store water not including hydrogen peroxide into the condensate storage tank 4. Hereby, even if the reactor water stored in the condensate storage tank 4 is used for washing an ion exchange resin in a condensate purifier 5, there is no possibility of deteriorating the ion exchange resin, and since the reactor water is transferred quickly into the condensate storage tank 4, a periodical inspection time is shortened.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种反应器水回收装置，其中快速分解包含在核反应堆系统中或反应堆水中的过氧化氢并将其返回到期望的位置。解决方案：该反应器水回收装置12，其中通过在活性炭上载有贵金属而形成的过氧化氢分解性高的催化剂安装在反应器井9和冷凝水储存罐4之间的反应器水系管13上。当反应器水从反应器井9回收到冷凝水储存罐4中时，包含在反应器水中的过氧化氢被分解，从而将不包括过氧化氢的水储存在冷凝物储罐4中。因此，即使反应器水储存在冷凝水储存箱4中的蒸馏水用于在冷凝水净化器5中洗涤离子交换树脂，不会使离子交换树脂劣化，并且由于反应器水快速地进入冷凝水储存箱4，所以定期检查时间缩短。版权所有（C）2006，JPO＆NCIPI

76. 发明专利

JP2005148000A Method for suppressing stress corrosion cracking 审中-公开
标题翻译：抑制应力腐蚀开裂的方法
公开(公告)号：JP2005148000A
公开(公告)日：2005-06-09
申请号：JP2003389332
申请日：2003-11-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TACHIBANA MASAHIKO , WADA YOICHI , ISHIDA KAZUNARI , AIZAWA MOTOHIRO
IPC分类号： G21C19/02 , G21D1/00
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a method for suppressing a stress corrosion cracking by reducing concentration of hydrogen peroxide generated by radiolysis of reactor coolant in a boiling water reactor and a suppressing crack propagation of the stress corrosion cracking.
SOLUTION: During an outage period of a boiling water reactor, at least one of Mn, Ti, Mo, W is electrodeposited on a reactor structure material surface in a form of metal or metal oxide as a hydrogen peroxide resolution catalyst. A material functioning as a hydrogen peroxide resolution catalyst is deposited by electrodeposition on a reactor structure material surface. By promoting the resolution of hydrogen peroxide and reducing a hydrogen peroxide quantity concerning oxidation/reduction reaction on the structure material surface, the corrosion electric potential of the structure material is reduced during a steady operation of reactor. When hydrogen peroxide reaching the reactor structure material surface is reduced, the corrosion electric potential of the reactor power plant structure member is lowered in the reactor, and a suppressing effect of stress corrosion cracking is raised.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决问题的方法：提供一种通过减少沸水反应堆中的反应堆冷却剂的放射分解产生的过氧化氢浓度和抑制应力腐蚀开裂的裂纹扩展来抑制应力腐蚀开裂的方法。解决方案：在沸水反应器的中断期间，Mn，Ti，Mo，W中的至少一种以金属或金属氧化物的形式电沉积在反应器结构材料表面上，作为过氧化氢分解催化剂。通过电沉积在反应器结构材料表面上沉积用作过氧化氢分辨催化剂的材料。通过在结构材料表面上促进过氧化氢的拆分和减少氧化/还原反应的过氧化氢量，在反应器的稳定运行期间，结构材料的腐蚀电位降低。当达到反应器结构材料表面的过氧化氢减少时，反应堆发电厂结构件的腐蚀电位在反应器中降低，并且提高了应力腐蚀开裂的抑制效果。版权所有（C）2005，JPO＆NCIPI

77. 发明专利

JP2005043051A Method for mitigating stress corrosion cracking in structural material for nuclear power plant 有权
标题翻译：用于减轻核电厂结构材料应力腐蚀开裂的方法
公开(公告)号：JP2005043051A
公开(公告)日：2005-02-17
申请号：JP2003199572
申请日：2003-07-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA KAZUNARI , WADA YOICHI , NAGASE MAKOTO , TACHIBANA MASAHIKO , ENDO MASAO , FUSE MOTOMASA , USUI NAOSHI , AIZAWA MOTOHIRO
IPC分类号： G21D3/08 , G21C17/00 , G21D1/00
CPC分类号： G21C17/0225
摘要： PROBLEM TO BE SOLVED: To provide a method for mitigating stress corrosion cracking in a structural material for a nuclear reactor which makes it possible to restrain the dose rate of a main steam pipe from rising without causing such side effects as a rise in the concentration of radioactive cobalt (Co-60) in cooling water for the reactor.
SOLUTION: Reducing nitride containing the nitrogen whose number of oxidations is negative is injected into reactor water in a nuclear power generation plant with a boiling water reactor. The injection of the reducing nitride containing the nitrogen whose number of oxidations is negative into the reactor water makes it possible to mitigate the stress corrosion cracking in the structural material for the reactor without causing such side effects as the rise in the concentration of the cobalt (Co-60).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种减轻核反应堆结构材料中的应力腐蚀开裂的方法，其使得可以抑制主蒸汽管的剂量率上升而不会引起副产物的升高反应堆冷却水中放射性钴（Co-60）的浓度。解决方案：将具有氧化数为负的氮的氮化物还原为具有沸水反应器的核发电厂的反应器水中。将含有氧数为负的氮的还原氮氧化物注入反应器水中使得可以减轻反应器的结构材料中的应力腐蚀开裂，而不会引起钴的浓度升高所引起的副作用（钴60）。版权所有（C）2005，JPO＆NCIPI

78. 发明专利

JPS6224195A METHOD OF REDUCING RADIOACTIVITY OF NUCLEAR POWER PLANT 失效
公开(公告)号：JPS6224195A
公开(公告)日：1987-02-02
申请号：JP16212585
申请日：1985-07-24
申请人： HITACHI LTD
发明人： OHASHI TAKEYA , HONDA TAKU , FURUYA YASUMASA , KASHIMURA EIJI , MINATO AKIRA , OSUMI KATSUMI , AIZAWA MOTOHIRO
IPC分类号： G21F9/00 , G21D1/00 , G21D3/08

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