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1. 发明专利

JP2008149216A Solution treatment method after formation of ferrite film 有权
标题翻译：形成薄膜后的溶液处理方法
公开(公告)号：JP2008149216A
公开(公告)日：2008-07-03
申请号：JP2006337008
申请日：2006-12-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HOSOKAWA HIDEYUKI , NAGASE MAKOTO , MORISAWA SATOSHI , SAKASHITA MOTOAKI , YOKOTA KATSUO
IPC分类号： C02F1/72 , C02F1/42 , C02F1/78 , G21F9/06 , G21F9/10 , G21F9/12
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To shorten the treatment time required for discarding the solution used for forming a ferrite film.
SOLUTION: A film forming device is connected to a piping system of a film forming target (S1), and the chemical decontamination to the inner surface of the piping of the piping system is executed (S2). After the completion of decontamination, the temperature of a film forming aqueous solution (an organic acid solution containing iron (II) ions containing an oxidizing agent and a pH control agent) used in the formation of the ferrite film is adjusted (S3), so that the ferrite film is deposited on the inner surface of the piping (S4). The treatment method of the waste liquid after the ferrite film is formed has processes, that is, the process (S6) of injecting the pH control agent (hydrazine) in the waste liquid so that the pH of the waste liquid becomes 6.5 or above, the process (S7) of injecting the oxidizing agent (H
2 O
2 ) in the waste liquid, the process (S8) of precipitating iron (II) ions in the waste liquid as solid particles of a magnetite to remove the solid particles by a filter and the process (S10) of subsequently decomposing the organic acid (formic acid) and pH control agent in the waste liquid using the oxidizing agent and the catalyst.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：缩短废弃用于形成铁氧体膜的溶液所需的处理时间。解决方案：成膜装置连接到成膜靶（S1）的管道系统，并且执行对管道系统管道内表面的化学去污（S2）。去污完成后，调整用于形成铁氧体膜的成膜水溶液（含有含有氧化剂的铁（II）离子的有机酸溶液和pH控制剂））的温度（S3），因此铁氧体膜沉积在管道的内表面上（S4）。形成铁氧体膜之后的废液的处理方法具有将废液中的pH调节剂（肼）注入到废液中的工序（S6），使废液的pH变为6.5以上，在废液中注入氧化剂（H 2 O 2 ）的方法（S7），在废物中析出铁（II）离子的方法（S8）液体作为磁铁矿的固体颗粒，以通过过滤器除去固体颗粒，以及使用氧化剂和催化剂随后分解废液中的有机酸（甲酸）和pH控制剂的方法（S10）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007085855A Structure processing method 审中-公开
标题翻译：结构加工方法
公开(公告)号：JP2007085855A
公开(公告)日：2007-04-05
申请号：JP2005274284
申请日：2005-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE ATSUSHI , NISHIOKA EIJI , NAGASE MAKOTO , SHIMIZU SADAHITO
IPC分类号： G21C19/02 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a structure processing method reducing time of cutting works of nuclear reactor internal structures while restraining waste quantity. SOLUTION: When an old shroud 1 is primarily cut within a nuclear reactor pressure vessel 14 and is carried out to a drier separator pool 13, and secondary cutting is performed outside a reactor as a carried-out shroud 2, an aggressive water jet cutting device using alumina as a cutting agent is applied to both a primary cutting device 20 and a secondary cutting device 21 in a similar manner, and a device for collecting secondary products at the time of cutting is also applied to both the devices. Thereby, the radioactive waste quantity can be reduced, generation of rust in the nuclear reactor can be suppressed, and increase in washing work quantity can be controlled, thus reducing a whole work period. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供结构处理方法，减少核反应堆内部结构的切割工作的时间，同时限制废物量。解决方案：当旧的护罩1主要在核反应堆压力容器14内切割并被运送到干燥器分离器池13，并且在作为被执行的护罩2的反应器外部进行二次切割时，腐蚀性水使用氧化铝作为切割剂的喷射切割装置以类似的方式施加到主切割装置20和次切割装置21上，并且也在两个装置上施加用于在切割时收集二次产品的装置。因此，可以减少放射性废物量，可以抑制核反应堆中的生锈，可以控制洗涤量的增加，从而减少整个工作时间。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2007024586A Abrasive water jet cutting method 审中-公开
标题翻译：磨砂水切割方法
公开(公告)号：JP2007024586A
公开(公告)日：2007-02-01
申请号：JP2005204599
申请日：2005-07-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGASE MAKOTO , WATANABE ATSUSHI , NISHIOKA EIJI , SUDO KENJI
IPC分类号： G21F9/30 , G21C19/02 , G21F9/06
摘要： PROBLEM TO BE SOLVED: To provide an abrasive water jet cutting method capable of solving various problems caused by rust and reducing the amount of secondary waste produced which is to be stored in a site bunker pool when an abrasive water jet cutting work is executed. SOLUTION: Adhesion of radionuclides on equipment and a structural member is suppressed by using alumina not causing rust as abrasive 14. Waste is classified into high-level waste and low-level waste by using a separating/recovering device 24 utilizing difference in density between the alumina and high-level chips. A filter 25 collecting the alumina is incinerated as the low level waste to reduce the amount of the secondary waste produced. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种磨料水射流切割方法，其能够解决当研磨水射流切割作业是磨料水射流切割作业是由锈蚀引起的各种问题和减少在存储在场地掩体池中时产生的二次废物的量执行。
解决方案：通过使用不产生锈蚀的氧化铝来抑制放射性核素对设备和结构构件的粘附。废物通过使用分离/回收装置24分为高级废物和低级废物，利用差异氧化铝和高级芯片之间的密度。收集氧化铝的过滤器25作为低级废物被焚烧，以减少产生的二次废物的量。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2006343250A STRUCTURE CUTTING METHOD 审中-公开
公开(公告)号：JP2006343250A
公开(公告)日：2006-12-21
申请号：JP2005170277
申请日：2005-06-10
申请人： HITACHI LTD
发明人： WATANABE ATSUSHI , NISHIOKA EIJI , NAGASE MAKOTO , ISHIGAMORI ISAO , IZUMI KIYOSHI
IPC分类号： G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a method for preventing secondary contamination due to cutting agent radiated in work in core structure when a water jet method using mixed cutting agent is applied to the structure in a reactor. SOLUTION: A liquid mixed with cutting agent and pressurized is discharged from a nozzle to cut radiated structure. As the cutting agent, aluminum oxide is used. Aluminum oxide does not cause oxidation reaction required for corrosion reaction and does not generate hydroxide. Therefore, adhesion of radiated aluminum oxide as rust to the surroundings can be prevented in applying the water jet method using mixed cutting agent to the working on the structure in the reactor. As the results, adhesion of radioactivity, that is, secondary contamination can be prevented. COPYRIGHT: (C)2007,JPO&INPIT

5. 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

6. 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

7. 发明专利

JP2002257986A METHOD OF DECONTAMINATION, AND DECONTAMINATING DEVICE 失效
公开(公告)号：JP2002257986A
公开(公告)日：2002-09-11
申请号：JP2001052784
申请日：2001-02-27
申请人： HITACHI LTD
发明人： NAGASE MAKOTO , UETAKE NAOTO , HOSOKAWA HIDEYUKI , ANAZAWA KAZUMI
IPC分类号： G21F9/28 , B01D53/66 , C02F1/78
摘要： PROBLEM TO BE SOLVED: To efficiently decontaminate radionuclide adhered to the surface of a metal member contained in oxide film generated in high temperature water. SOLUTION: For the inner surface of a valve body 1, for example, the surface at a part to be decontaminated is brought into contact with ozone water, and physical decontamination by means of a water jet is then conducted.

8. 发明专利

JP2002131473A WATER-QUALITY CONTROL METHOD 失效
公开(公告)号：JP2002131473A
公开(公告)日：2002-05-09
申请号：JP2000332121
申请日：2000-10-26
申请人： HITACHI LTD
发明人： ISHIDA KAZUNARI , NAGASE MAKOTO , HOSOKAWA HIDEYUKI , UETAKE NAOTO , ANAZAWA KAZUMI
IPC分类号： G21D3/08
摘要： PROBLEM TO BE SOLVED: To provide a water-quality control method which restrains a radioactive substance from being stuck to a reactor core internal structure and to the surface of a pipe. SOLUTION: The radioactive substance which is stuck to at least a face coming into contact with reactor water in the reactor core internal structure or a face coming into contact with reactor water in the pipe is removed while a nuclear heating operation is stopped. Then, at least a metal organic compound complex or a metal oxide organic compound complex which has at least the adhesion suppression effect of the radioactive substance to the reactor core internal structure or the corrosion reduction effect of the reactor core internal structure is added to nuclear reactor water in a nuclear power plant before a rated output operation is performed after the radioactive substance has been removed. After that, the organic compound complex is decomposed.

9. 发明专利

JPH10244135A BACK-WASHING METHOD OF FILTER, ITS OPERATION, METHOD OF ESTIMATING SERVICE LIFE OF FILTER ELEMENT, AND REGENERATION OF FILTER ELEMENT 失效
公开(公告)号：JPH10244135A
公开(公告)日：1998-09-14
申请号：JP5325297
申请日：1997-03-07
申请人： HITACHI LTD
发明人： NAGASE MAKOTO , MURASE MICHIO , KOBAYASHI MASATO , KAZAMA SEIICHI
IPC分类号： B01D65/02 , B01D29/00 , B01D29/07 , B01D29/66 , B01D65/10
摘要： PROBLEM TO BE SOLVED: To effectively remove impurities stuck and deposited on a filter by applying back-differential pressure at a state opened a vent, at a back-washing time of a filter element, accelerating release of the impurities, closing the vent under being applied the back-differential pressure after a specified time, and accelerating discharge of the impurities. SOLUTION: At a time of back-washing of the filter element 20, at first a flow rate control valve 21 and a valve 23 are closed, a drain valve 22 and a vent valve 21 being opened and drain of water at the upper part of a container 11 is started. A specified time later from a start of the drain, an inlet valve 24 is opened to feed pressurized gas from an inlet pipe 18, and a pressurized gas layer is formed at the lower part of an isolation plate 13, and the purified water at this portion is back-flown to the filter element 20 via a support pipe 14 to strip off the impurities. Later the vent valve 25 is closed and internal pressure of the container 11 is raised and the impurity-containing water is drained, subsequently the inlet valve 24 and the drain valve 22 being closed, next the vent valve 25 and valve 23 being opened and the purified water is introduced into the container 11 through a discharge pipe 17 to fill the container 11 with the purified water again.

10. 发明专利

JPH10116758A SEMICONDUCTOR PRODUCTION FACTORY 失效
公开(公告)号：JPH10116758A
公开(公告)日：1998-05-06
申请号：JP26696496
申请日：1996-10-08
申请人： HITACHI LTD
发明人： NAGASE MAKOTO , HAMAMOTO MASAHIRO , ITO SHINICHI
IPC分类号： H01L21/02
摘要： PROBLEM TO BE SOLVED: To maximize the space availability in a clean room by combining areas having different floor structure based on the relationship of size between a production facility body and the occupation area of an auxiliary machine. SOLUTION: A clean room comprises a work floor 4, a ceiling 6 mounting a fan filter unit 5, an inner wall 7 partitioning the fire zone of a building, and a return air channel, i.e., a return duct 8. When the floor area being occupied by a production facility body 9 is smaller than the floor area being occupied by an auxiliary machine 11, underfloor area B is partitioned by a floor 13 into two layers blocking the return air. An auxiliary machine 11a generating a small quantity of heat is installied under the upper layer passing the return air and an auxiliary machine 11b generating a large quantity of heat, e.g. a hot exhaust gas, is installed under the lower layer. When the floor area being occupied by a production facility body 9 is larger than the floor area being occupied by the auxiliary machine 11 of production facility, another layer of production floor is provided in the underfloor shown at area C and the production facility body 9 is installed on same floor surface as the auxiliary machine 11.

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