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11. 发明专利

JP2005010005A Method of decontaminating nuclear instrumentation housing in reactor 审中-公开
标题翻译：在反应器中去除核装置的方法
公开(公告)号：JP2005010005A
公开(公告)日：2005-01-13
申请号：JP2003174206
申请日：2003-06-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OWADA KAZUO , KATAOKA MASAO , YOKOTA KATSUO
IPC分类号： G21F9/28
摘要： PROBLEM TO BE SOLVED: To solve the problem that a chemical decontamination method like the conventional technique in which a decontamination liquid is filled and forcedly circulated, cannot be applied because an object to be decontaminated which is difficult to compose a closed loop like a nuclear instrumentation housing in a reactor, has no open end, and provide a chemical decontamination method which makes it possible to effectively decontaminate the object to be decontaminated which is difficult to compose the closed loop like the nuclear instrumentation housing in the reactor.
SOLUTION: An interior pipe is inserted into the nuclear instrumentation piping housing in the reactor from the lower end of it and the decontamination liquid is supplied to a region formed between the interior pipe and the housing to recover the decontamination liquid supplied from the region to the interior pipe. Even the object to be decontaminated which is difficult to compose the closed loop because it has no open end like the nuclear instrumentation housing in the reactor can be decontaminated effectively.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决问题：为了解决像消毒净化液被填充并强制循环的常规技术那样的化学去污方法不能被应用，因为难以构成闭环的类似物的要去污的物体核反应堆中的核仪器住宅没有开放式末端，并且提供了一种化学去污方法，这使得可以有效地去除像反应器中的核仪器壳体一样难以构成闭环的被净化物体。解决方案：将内管从其下端插入反应器的核仪器管道外壳，并将净化液供给到形成在内管和外壳之间的区域，以回收从区域到内部管道。即使是由于其没有像反应堆中的核仪器外壳那样的开放式结构而难以组成闭环的物体也可以有效去污。版权所有（C）2005，JPO＆NCIPI

12. 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

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