专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2003033653A Organic acid decomposing catalyst and chemical decontamination method 有权
标题翻译：有机酸分解催化剂和化学除去方法
公开(公告)号：JP2003033653A
公开(公告)日：2003-02-04
申请号：JP2001224309
申请日：2001-07-25
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： KATAOKA ICHIRO , AIZAWA MOTOHIRO , ANAZAWA KAZUMI , NAGASE MAKOTO , ISHIDA KAZUNARI
IPC分类号： G21F9/06 , B01J23/22 , B01J23/42 , B01J23/46 , G21F9/28
摘要： PROBLEM TO BE SOLVED: To improve the performance of a catalyst to decompose a decontaminant containing an organic acid in order to reduce the load on an ion exchange resin and to decrease wastes by accompanying the chemical decontamination of radioactive deposits.
SOLUTION: In the decomposition of the organic acid which is the decontaminant using the catalyst attached additionally with noble metals, from 10 mesh (opening of sieve mesh 1.68 mm) to 20 mesh (opening of sieve mesh 0.84 mm) are found as optimum grain sizes. The organic acid after the decontamination can be decomposed with high efficiency by applying the catalyst of such grain sizes and the shortening of the decomposition time, the downsizing of facilities and the evading of the degradation in water quality by the deterioration of the ion exchange resin are made possible. The organic acid used for the chemical decontamination can be efficiency subjected to the decomposition treatment in a short period of time by using the catalyst of the grain sizes. In addition, not only an oxalic acid but other organic acids, etc., can be efficiently decomposed.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提高催化剂的性能，以分解含有机酸的去污剂，以减少离子交换树脂的负荷，并通过伴随放射性沉积物的化学去污来减少废物。解决方案：在使用附加贵金属的催化剂除去污染物的有机酸的分解中，从10目（筛网1.68mm）至20目（筛孔0.84mm的开孔）被发现为最佳粒度。去污后的有机酸可以通过应用这种晶粒尺寸的催化剂和缩短分解时间，设备的小型化以及通过离子交换树脂的劣化避免水质退化来高效分解。成为可能用于化学去污的有机酸可以通过使用粒度的催化剂在短时间内进行有效的分解处理。此外，不仅可以有效地分解草酸，而且其它有机酸等。

2. 发明专利

JP2005024376A Method for cleaning jet pump 审中-公开
标题翻译：清洗喷射泵的方法
公开(公告)号：JP2005024376A
公开(公告)日：2005-01-27
申请号：JP2003189947
申请日：2003-07-02
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： SUGANO SATOSHI , YOSHIE YUTAKA , KUROSAWA KOICHI , MORINAKA TADASHI , ITO TAKASHI , ANAZAWA KAZUMI , HAYASHI EISAKU , AIZAWA MOTOHIRO
IPC分类号： G21C15/243 , G21C19/02 , G21F9/28
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a cleaning method for removing scale accumulating on the inner surface of a jet pump and pipes in a recirculation system in a boiling water reactor.
SOLUTION: An inlet mixer is detached from the jet pump located inside a reactor vessel and including the inlet mixer, a riser pipe and a diffuser to remove the scale accumulating on the inner surface of the inlet mixer, the riser pipe, the diffuser and the pipes in the recirculation system. Consequently, the scale accumulating on the inner surface of the jet pump and the pipes in the recirculation system in the boiling water reactor can be removed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于去除在沸水反应器中的循环系统中的喷射泵和管道的内表面积垢的垢的清洁方法。解决方案：将入口混合器从位于反应器容器内的喷射泵分离，并包括入口混合器，提升管和扩散器，以去除积聚在入口混合器内表面上的标尺，提升管，扩散器和再循环系统中的管道。因此，可以除去积聚在喷射泵的内表面上的刻度和沸水反应器中的再循环系统中的管道。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003057393A Decontamination method and decontamination agent 有权
标题翻译：去除方法和去污剂
公开(公告)号：JP2003057393A
公开(公告)日：2003-02-26
申请号：JP2001246908
申请日：2001-08-16
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Kurita Engineering Co Ltd , 日立エンジニアリング株式会社 , 栗田エンジニアリング株式会社 , 株式会社日立製作所
发明人： KAZAMA MASAHIKO , YOSHIKAWA HIROO , AIZAWA MOTOHIRO , NAGASE MAKOTO
IPC分类号： G21F9/28 , B01J47/02 , B01J47/04 , G21F9/06 , G21F9/12
摘要： PROBLEM TO BE SOLVED: To provide a decontamination method and a decontamination agent suitable for chemical decontamination of structural parts including a copper oxide in a nuclear power plant. SOLUTION: Malonic acid 5 is injected as the decontamination agent in circulating lines 15, 16, and circulated through lines 15, 16 to dissolve copper oxide from a radioactive insoluble substance stuck to a decontamination object 1 (a copper removal process). Dissolved copper ions are removed by making decontamination agent liquid flow to a cation exchange resin column 3 (a metal ion removal process). After the completion of the copper removal process, ascorbic acid 5 is injected in the circulating lines 15, 16 to dissolve iron oxide remaining in the copper removal process, from the decontamination object 1 (an iron removal process). Dissolved iron ions are removed in the cation exchange resin column 3. Hydrogen peroxide 9 is injected in the decontamination agent liquid from which iron ions are removed and the decontamination agent liquid is circulated through a catalyst column 8 to decompose the decontamination agent into carbon dioxide and water, and further passed through a mixed bed resin column 4 for final purification.
摘要翻译：要解决的问题：提供一种适用于核电厂中包括氧化铜在内的结构部件的化学去污的去污方法和去污剂。解决方案：丙二酸5作为净化剂在循环管线15,16中注入，并通过管线15,16循环，以从粘附到去污物体1上的放射性不溶物质（铜除去过程）中溶解氧化铜。通过使去污剂液体流到阳离子交换树脂柱3（金属离子去除法）除去溶解的铜离子。在完成铜去除工艺之后，将抗坏血酸5注入循环管线15,16中以从去污物1（铁除去过程）中除去残留在除铜过程中的氧化铁。在阳离子交换树脂柱3中除去溶解的铁离子3.将过氧化氢9注入除去铁离子的去污剂液体中，并且去污剂液体通过催化剂塔8循环，以将去污剂分解成二氧化碳，水，并进一步通过混合床树脂柱4进行最终纯化。

4. 发明专利

JP2008008744A Gap water quality measuring method and gap water quality measuring instrument 有权
标题翻译： GAP水质测量方法和GAP水质测量仪器
公开(公告)号：JP2008008744A
公开(公告)日：2008-01-17
申请号：JP2006179304
申请日：2006-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WADA YOICHI , ISHIDA KAZUNARI , TACHIBANA MASAHIKO , AIZAWA MOTOHIRO , USUI NAOSHI
IPC分类号： G01N27/28 , G01N17/00 , G01N27/07 , G01N27/26 , G01N27/30 , G01N27/416 , G21C17/003 , G21C17/02
摘要： PROBLEM TO BE SOLVED: To provide a gap water quality measuring method for precisely measuring the quantity of state related to the quality of the water in a crack and more precisely estimating a crack developing speed, and a gap water quality measuring instrument. SOLUTION: The gap water quality sensor 36 of the gap water quality measuring instrument 18 has a gap forming member 31 containing gap forming parts 32a and 32b which form a gap 1 and electrodes 2a and 2b are attached to the gap forming part 32b in an electrically insulated state. The electrode 2a is arranged to the opening part 33 of the gap 1 and the electrode 2b is arranged to the leading end part 34 of the gap 1. The measuring instrument 37 of the gap water quality measuring instrument 18 has an ammeter 5 and an electric cable 4 containing wirings 4a and 4b. The wiring 4a is connected to the electrode 2a and the wiring 4b is connected to the electrode 2b. The ammeter 5 measures the current flowing across the electrodes 2a and 2b. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于精确测量与裂纹中水的质量有关的状态量并更准确地估计裂纹展开速度的间隙水质量测量方法，以及间隙水质量测量仪。间隙水质测量仪18的间隙水质传感器36具有间隙形成部件31，间隙形成部件31包含形成间隙1的间隙形成部32a，32b，电极2a，2b与间隙形成部32b 处于电绝缘状态。电极2a设置在间隙1的开口部33上，电极2b配置在间隙1的前端部34.间隙水质测定器18的测定器37具有电流表5和电电缆4包含布线4a和4b。配线4a与电极2a连接，配线4b与电极2b连接。电流表5测量流过电极2a和2b的电流。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007033352A Method for zinc supply to reactor 审中-公开
标题翻译：锌供应给反应器的方法
公开(公告)号：JP2007033352A
公开(公告)日：2007-02-08
申请号：JP2005219994
申请日：2005-07-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AIZAWA MOTOHIRO , HOSOKAWA HIDEYUKI , ISHIDA KAZUNARI
IPC分类号： G21D3/08 , G21C19/307 , G21D1/00 , G21D1/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a method for zinc supply to a reactor capable of drastically reducing additional placing cost of zinc supply facility for suppressing adhesion of radioactive materials on inner surface of piping and component containing radioactive materials, operation and maintenance cost and management cost.
SOLUTION: This method for zinc supply is for a boiling water reactor power plant having a boiling water reactor 1, steam turbines 3 and 4 for driving a generator with the steam, a condenser 5 for cooling the steam having driven the steam turbine 4 returning to water, a condensate filter 7 for purifying the condensate water, a condensate demineralizer 8 and supply water heaters 10 and 12 for heating purified water and returning to the reactor. The zinc concentration in the condensate filter 7 outlet water is raised by precoating particles containing zinc in the filtering surface of processed water inlet side of the condensate filter 7. Part of condensate water flow passing the condensate filter 7 is bypassed with a condensate filter bypass valve and a bypass pipe 25, iron concentration in condensate filter 7 outlet water is increased and zinc is supplied to the reactor 1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够大大降低锌供应设备的附加放置成本的锌供应方法，用于抑制放射性物质在管道内部表面和含有放射性物质的成分的附着，操作和维护成本和管理成本。解决方案：这种锌供应方法是用于具有沸水反应器1，用于驱动具有蒸汽的发电机的蒸汽轮机3和4的沸水反应堆发电厂，用于冷却已经驱动汽轮机的蒸汽的冷凝器5 4返回水中，用于净化冷凝水的冷凝水过滤器7，冷凝水脱盐机8和用于加热净化水并返回到反应器的供水热水器10和12。冷凝水过滤器7出水中的锌浓度通过在冷凝水过滤器7的处理水入口侧的过滤表面中预涂涂覆锌的颗粒来提高。通过冷凝物过滤器7的冷凝水流的一部分用冷凝器过滤器旁通阀旁路和旁通管25，冷凝过滤器7出口水中的铁浓度增加，并且向反应器1供应锌。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007024644A Adhesion control method of radionuclide on component member of nuclear power plant and film forming method 有权
标题翻译：核电厂组件成员和成膜方法中放射性核素的粘合控制方法
公开(公告)号：JP2007024644A
公开(公告)日：2007-02-01
申请号：JP2005206017
申请日：2005-07-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HOSOKAWA HIDEYUKI , NAGASE MAKOTO , ISHIDA KAZUNARI , WADA YOICHI , USUI NAOSHI , AIZAWA MOTOHIRO , FUSE MOTOMASA
IPC分类号： G21D3/08 , G21C19/307 , G21D1/00
CPC分类号： G21C13/087 , C23F15/00 , G21C19/00 , G21Y2002/201 , G21Y2004/40 , Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an adhesion control method of radionuclides on a component member of a nuclear power plant.
SOLUTION: During the period from the time of finishing a decontaminating process of removing contaminants formed on the surface of a metallic component member of a nuclear power plant until the time of starting the nuclear power plant, a first chemical containing iron (II) ions, a second chemical for oxidizing the iron (II) ions into iron (III) ions and a third chemical for conditioning the pH of a treatment solution made by mixing the first chemical and the second chemical to 5.5-9.0 are blended in this order, and the resulting mixture is brought into contact with the surface of the metallic member to form a ferrite film. The ferrite film thus formed can inhibit radionuclides from adhering to the surface of the metallic component.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供核电站的部件上的放射性核素的粘附控制方法。解决方案：在完成去除在核电站的金属部件的表面上形成的污染物去除净化处理之前，直到启动核电厂为止，第一种含有铁的化学品（II ）离子，用于将铁（II）离子氧化成铁（III）离子的第二种化学物质和用于调节通过将第一种化学品和第二种化学物质混合制备的处理溶液的pH调节为5.5-9.0的第三种化学品混合在此使所得混合物与金属构件的表面接触以形成铁氧体膜。由此形成的铁氧体膜可以抑制放射性核素附着在金属成分的表面。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005283530A Stress corrosion cracking suppression method 有权
标题翻译：应力腐蚀开裂抑制方法
公开(公告)号：JP2005283530A
公开(公告)日：2005-10-13
申请号：JP2004101804
申请日：2004-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WADA YOICHI , ISHIDA KAZUNARI , TACHIBANA MASAHIKO , AIZAWA MOTOHIRO , USUI NAOSHI , NAKAMURA MASAHITO
IPC分类号： G21C19/307 , G21D1/00 , G21D3/08
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To suppress stress corrosion cracking by lowering corrosion potential of reactor structure material. SOLUTION: Oxide existing on the surface of structure and piping of a BWR contacting reactor water is removed. Then, hydrazine is added to reactor water together with hydrogen in an operation cycle of a boiling water reactor. As hydrazine is added to the reactor water in addition to hydrogen, oxygen and hydrogen peroxide generated in the reactor are made to react with hydrazine to be water and nitrogen so that the concentration of oxygen and hydrogen peroxide in reactor water is efficiently reduced. Since oxide is removed, the effect of hydrazine to directly lower the corrosion potential of materials can be duplicated. As the results, the corrosion potential of the reactor structure materials sufficiently lowers and stress corrosion cracking can be suppressed. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过降低反应堆结构材料的腐蚀电位来抑制应力腐蚀开裂。
解决方案：除去存在于BWR接触反应器水的结构和管道表面上的氧化物。然后，在沸水反应器的操作循环中，将肼与氢气一起加入到反应器水中。当将肼加入反应器中除了氢气之外，使在反应器中产生的氧气和过氧化氢与肼反应成水和氮，从而有效降低反应器水中氧气和过氧化氢的浓度。由于除去氧化物，可以重复肼直接降低材料的腐蚀电位的影响。结果，可以抑制反应堆结构材料的腐蚀电位充分降低，并且可以抑制应力腐蚀开裂。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005283528A Reductive nitrogen compound injecting operation method for atomic power plant 有权
标题翻译：减少氮化合物注入原子能发电厂的操作方法
公开(公告)号：JP2005283528A
公开(公告)日：2005-10-13
申请号：JP2004101797
申请日：2004-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AIZAWA MOTOHIRO , WADA YOICHI , ISHIDA KAZUNARI
IPC分类号： G21C19/307 , G21D1/00 , G21D3/08
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To suppress stress corrosion cracking (SCC) of materials constituting a reactor core internal structure and a pressure boundary in a boiling water atomic power plant.
SOLUTION: Hydrogen and a reductive nitrogen compound are injected to reactor cooling water. The injection quantity of the reductive nitrogen compound is controlled by using oxygen concentration and ammonia concentration contained in cooling water at the reactor bottom as an indicator. The injection quantity of the hydrogen is controlled by using the dose rate of a main steam pipe or the hydrogen concentration contained in the cooling water at the reactor bottom as an indicator. Further, hydrazine carbonate, carbon dioxide or carbonate is injected to obtain a tolerance of reactor water quality management and to reduce the plant dose rate.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：抑制沸水原子发电厂中构成反应堆芯内部结构的材料和压力边界的应力腐蚀开裂（SCC）。解决方案：将氢和还原性氮化合物注入反应器冷却水中。通过使用反应器底部的冷却水中所含的氧浓度和氨浓度作为指标来控制还原氮化合物的注入量。通过使用主蒸汽管的剂量率或反应器底部的冷却水中所含的氢浓度作为指标来控制氢的喷射量。此外，注入碳酸肼，二氧化碳或碳酸盐以获得反应堆水质管理的耐受性并降低植物剂量率。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005140608A Corrosion potential sensor 有权
标题翻译：腐蚀潜在传感器
公开(公告)号：JP2005140608A
公开(公告)日：2005-06-02
申请号：JP2003376507
申请日：2003-11-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WADA YOICHI , ISHIDA KAZUNARI , TACHIBANA MASAHIKO , AIZAWA MOTOHIRO
IPC分类号： G01N27/26 , G01N27/416 , G21C17/02 , G21D1/00
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To facilitate the use of a simple structure for a long time, over wide water-quality conditions. SOLUTION: A zirconium electrode 1 is used for an electrode for generating a reference potential and held by a zirconia insulator 2. An end of the zirconium electrode 1 and a core wire 6b of a mineral insulated cable 6 are connected by spot welding. Thermal spraying of zirconia is implemented on a partial surface of the zirconium electrode 1 and the zirconia insulator 2 so as to reduce oxygen diffusion, and a coating film 4 is formed. The reference potential is generated, in a part of the zirconium electrode 1 coated with the coating film 4 and is outputted to an external measuring system via the core wire 6b. COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2005061846A Method and device for cleaning jet pump 审中-公开
标题翻译：用于清洁喷射泵的方法和装置
公开(公告)号：JP2005061846A
公开(公告)日：2005-03-10
申请号：JP2003207240
申请日：2003-08-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGASE MAKOTO , HOSOKAWA HIDEYUKI , ISHIDA KAZUNARI , AIZAWA MOTOHIRO , KATAOKA ICHIRO , YOKOTA KATSUO
IPC分类号： G21C15/25 , G21C19/02 , G21F9/28
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To provide a method for cleaning a jet pump which makes it possible to shorten a regular inspection period even if the work for cleaning the jet pump is carried out during the regular inspection period.
SOLUTION: An inlet mixer is detached from the jet pump, is moved to a fuel storage pool and is cleaned there. The mixer is moved from the pool and is set up in the jet pump. By the work for removing scale piled up on the inner surface of the jet pump in the fuel pool or a dry separator pool, the work for a regular inspection can be carried out in tandem with that for cleaning the jet pump. This makes it possible to restrain the extension of the regular inspection period.
COPYRIGHT: (C)2005,JPO&NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式