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182 条记录 (耗时 0.029 秒)

    Method of reducing radioactivity in nuclear plant
    1.
    发明授权
    Method of reducing radioactivity in nuclear plant 失效
    降低核电厂放射性的方法

    公开(公告)号：US4820473A

    公开(公告)日：1989-04-11

    申请号：US795466

    申请日：1985-11-06

    申请人： Kenya Ohashi ,  Takashi Honda ,  Yasumasa Furutani ,  Eizi Kashimura ,  Akira Minato ,  Katsumi Ohsumi

    发明人： Kenya Ohashi ,  Takashi Honda ,  Yasumasa Furutani ,  Eizi Kashimura ,  Akira Minato ,  Katsumi Ohsumi

    IPC分类号： C23C8/10 ,  C23C8/16 ,  C23C8/18 ,  G21C17/022 ,  G21F9/00 ,  G21F9/28 ,  G21F9/30 ,  G21C19/30

    CPC分类号： G21C17/0225 ,  C23C8/10 ,  C23C8/16 ,  C23C8/18 ,  G21F9/004 ,  Y10S376/90

    摘要： The present invention is concerned with a method of reducing radioactivity in a nuclear plant by preliminarily forming oxide films on the surfaces of metallic structural members to be in contact with high-temperature and high-pressure reactor water containing radioactive substances before said metallic members are exposed to said reactor water. The method is characterized by the steps of subjecting said structural members to a first-step oxidation treatment of heating said structural members in an environment of a high temperature, and further subjecting the thus treated structural members to a second step oxidation treatment of heating said treated structural members in an environment having a higher oxidizing capacity than that of said environment in said first-step oxidation treatment to form a denser oxide film than an oxide film obtained in said first step oxidation treatment. According to the present invention, radioactivity in the nuclear plant can be reduced remarkably.

    摘要翻译： 本发明涉及通过在金属构件暴露之前预先形成金属结构构件的表面上的氧化物膜以与含有放射性物质的高温高压反应器水接触的方法来降低核电厂中的放射性的方法 到所述反应器水。 该方法的特征在于：在高温环境中对所述结构部件进行第一步氧化处理以加热所述结构部件，并进一步对经过处理的结构部件进行第二阶段氧化处理，加热所述处理过的 在所述第一步氧化处理中，氧化能力高于所述环境的环境中的结构体，以形成比在所述第一步骤氧化处理中获得的氧化膜更致密的氧化膜。 根据本发明，可以显着降低核电厂的放射性。

    Nuclear power plant providing a function of suppressing the deposition of radioactive substance
    4.
    发明授权
    Nuclear power plant providing a function of suppressing the deposition of radioactive substance 失效
    提供抑制放射性物质沉积功能的核电站

    公开(公告)号：US4722823A

    公开(公告)日：1988-02-02

    申请号：US525889

    申请日：1983-08-24

    申请人： Takashi Honda ,  Toshio Kawakami ,  Masakiyo Izumiya ,  Akira Minato ,  Katsumi Ohsumi

    发明人： Takashi Honda ,  Toshio Kawakami ,  Masakiyo Izumiya ,  Akira Minato ,  Katsumi Ohsumi

    IPC分类号： G21D1/00 ,  G21C13/087 ,  G21C13/10 ,  G21F9/00 ,  G21C11/00

    CPC分类号： G21C13/087 ,  G21C13/10 ,  Y02E30/40

    摘要： A nuclear power plant using a structural material consisting of metal which comes into contact with a liquid in which radioactive substances are dissolved has a function to suppress the deposition of the radioactive substances. In this function, metal elements constituting the surface layer of the structural material which comes into contact with the liquid are oxidized by injecting oxidizing agents from outside, thereby preliminarily producing an oxide film. The oxidizing agents comprise at least one kind selected from the group consisting of oxygen, hydrogen peroxide, chromate, nitrite, molybdate, tungstate and ferrate. Particularly, by suppressing the deposition of radioactive substances on a stainless steel, the dose rate of exposure of workers is effectively reduced.

    摘要翻译： 使用与溶解有放射性物质的液体接触的金属构成的结构材料的核电站具有抑制放射性物质沉积的功能。 在该功能中，构成与液体接触的结构材料的表面层的金属元素通过从外部注入氧化剂而被氧化，从而预先生成氧化膜。 氧化剂包括选自氧，过氧化氢，铬酸盐，亚硝酸盐，钼酸盐，钨酸盐和高铁酸盐中的至少一种。 特别是通过抑制放射性物质在不锈钢上的沉积，有效地降低了工作人员的接触剂量。

    Hydrogen generating apparatus
    5.
    发明授权
    Hydrogen generating apparatus 失效
    氢发生装置

    公开(公告)号：US4093527A

    公开(公告)日：1978-06-06

    申请号：US635362

    申请日：1975-11-26

    申请人： Kazuo Tanno ,  Yasumasa Furutani ,  Takashi Honda ,  Akira Uenishi

    发明人： Kazuo Tanno ,  Yasumasa Furutani ,  Takashi Honda ,  Akira Uenishi

    IPC分类号： H01M6/04 ,  C25B1/02 ,  C25B1/04 ,  C25B1/26 ,  C25B5/00 ,  B01D13/02

    CPC分类号： C25B1/02 ,  Y02E60/366 ,  Y02P20/134 ,  Y10S204/03 ,  Y10S204/04

    摘要： A hydrogen generating apparatus comprising a cell having a plurality of chambers defined in the cell by cation exchange membranes and anion exchange membranes arranged alternately, a high concentration electrolyte and a low concentration electrolyte being filled alternately in said plurality of chambers, and a pair of electrodes guided into the chambers disposed on both the ends of said cell, respectively, and the open circuit voltage between said electrodes being higher than the decomposition voltage of water.

    摘要翻译： 一种氢生成装置，其特征在于，具有：通过阳离子交换膜和交替配置的阴离子交换膜在所述电池中具有多个室的电池，在所述多个室中交替地填充高浓度电解质和低浓度电解质， 引导到设置在所述电池两端的腔室中，并且所述电极之间的开路电压高于水的分解电压。

    Nuclear fuel reprocessing plant
    6.
    发明授权
    Nuclear fuel reprocessing plant 失效
    核燃料代用厂

    公开(公告)号：US5190623A

    公开(公告)日：1993-03-02

    申请号：US335661

    申请日：1989-03-29

    申请人： Yuko Sasaki ,  Takashi Honda ,  Saburo Shoji ,  Shiro Kobayashi ,  Yasumasa Furutani

    发明人： Yuko Sasaki ,  Takashi Honda ,  Saburo Shoji ,  Shiro Kobayashi ,  Yasumasa Furutani

    IPC分类号： G21F9/22 ,  B01D61/44 ,  G21C19/46

    CPC分类号： G21C19/46 ,  Y02W30/883 ,  Y10S422/903

    摘要： In a nuclear fuel reprocessing plant for processing a used nuclear fuel by a nitric acid solution, the present invention provides a nuclear fuel reprocessing plant characterized by including electrolytic reduction means for reducing the valence of oxidizing metal ions consisting of the nuclear fuel and dissolved in the nitric acid solution while they are kept under the ionic state. In a processing method of a nuclear fuel reprocessing plant for processing a used nuclear fuel by a nitric acid solution, the present invention provides also a corrosion-proofing method of a nuclear fuel reprocessing plant characterized in that electrolytic reduction is carried out so that the valence of oxidizing metal ions consisting of the nuclear fuel and dissolved in the nitric acid solution is reduced while the metal ions are kept under the ionic state and NOx gas is also generated. The invention is directed to provide a nuclear fuel reprocessing plant and its corrosion-proofing method which prevents corrosion of equipment without allowing the precipitation of corrosive metal ions in a nitric acid solution as the metals.

    摘要翻译： PCT No.PCT / JP88 / 00694 Sec。 371日期：1989年3月29日 102（e）日期1989年3月29日PCT提交1988年7月13日PCT公布。 出版物WO89 / 0122400 日本1989年2月9日。在通过硝酸溶液处理使用的核燃料的核燃料后处理装置中，本发明提供了一种核燃料后处理装置，其特征在于包括用于降低氧化金属离子的价态的电解还原装置， 核燃料并在硝酸溶液中溶解，同时保持在离子状态。 在利用硝酸溶液处理使用的核燃料的核燃料后处理装置的处理方法中，本发明还提供了核燃料后处理装置的防腐蚀方法，其特征在于，进行电解还原， 氧化由核燃料组成的金属离子并溶解在硝酸溶液中的金属离子被还原，同时金属离子保持在离子状态并且还产生NOx气体。 本发明旨在提供一种核燃料后处理装置及其防腐蚀方法，其防止设备的腐蚀，而不允许将硝酸溶液中的腐蚀性金属离子沉淀为金属。

    Suppression of deposition of radioactive substances in boiling water type, nuclear power plant
    7.
    发明授权
    Suppression of deposition of radioactive substances in boiling water type, nuclear power plant 失效
    禁止放射性物质在沸水型沉积，核电厂

    公开(公告)号：US4940564A

    公开(公告)日：1990-07-10

    申请号：US110454

    申请日：1987-10-20

    申请人： Motohiro Aizawa ,  Katsumi Ohsumi ,  Takashi Honda ,  Hisao Itow

    发明人： Motohiro Aizawa ,  Katsumi Ohsumi ,  Takashi Honda ,  Hisao Itow

    IPC分类号： G21D1/00 ,  G21C17/022 ,  G21C19/28 ,  G21D3/08

    CPC分类号： G21C17/0225 ,  G21C19/28

    摘要： In a boiling water-type, nuclear power plant, deposition of radioactive substances on the surfaces of out-of-core components in the primary cooling water system in the nuclear power plant is suppressed by injecting an alkaline element into reactor water in the presence of more than an amount of the oxygen formed by nuclear fission of the reactor water and dissolved in the reactor water, particularly without hydrogen gas injection, during the nuclear heatup operation period of a boiling water type, nuclear power plant and circulating the injected alkaline element through the primary cooling water system of a nuclear reactor, thereby forming an oxide film on the surfaces of out-of-core components in the primary cooling water system of the nuclear reactor. Exposure of plant personnel to radioactivity can be reduced thereby. The present boiling water-type, nuclear power plant is provided with a means for forming such oxide film.

    摘要翻译： 在沸水型核电厂中，通过在碱性元素的存在下将碱性元素注入反应器水中来抑制放射性物质沉积在核电厂初级冷却水系统中的核心外部组分的表面上 在沸水型核电厂的核加热运行期间，通过反应器水的核裂变形成的氧气量多于溶解在反应器水中的气体，特别是不喷射氢气，并使注入的碱性元素循环通过 核反应堆的一级冷却水系统，从而在核反应堆的一级冷却水系统中的核心部件的表面上形成氧化膜。 因此可以减少植物人员暴露于放射性。 现在的沸水型核电厂设有形成这种氧化膜的方法。

    Transmission apparatus
    8.
    发明授权
    Transmission apparatus 有权
    传输装置

    公开(公告)号：US09148241B2

    公开(公告)日：2015-09-29

    申请号：US12855681

    申请日：2010-08-12

    申请人： Takashi Honda

    发明人： Takashi Honda

    IPC分类号： H04J3/14

    CPC分类号： H04J3/14 ,  H04J2203/006

    摘要： A transmission apparatus switches to a line of one standby system upon occurrence of a fault on any one of n lines of a working system. The transmission apparatus includes a switching controller that when switching from a line of the working system to a line of the standby-system upon the occurrence of the fault and executing a given command to put the line causing the fault in a given state of line switching according to the given command, causes the working system to maintain the state of line switching according to the given command even after restoration from the fault.

    摘要翻译： 在工作系统的n行中的任意一行发生故障时，传输装置切换到一个备用系统的一行。 发送装置包括切换控制器，当故障发生时，从工作系统的线路切换到备用系统的线路并且执行给定的命令以将导致故障的线路置于给定的线路切换状态 根据给定的命令，即使在故障恢复后，工作系统也会根据给定的命令维持线路切换的状态。

    Method of switching optical transport network and node device
    9.
    发明授权
    Method of switching optical transport network and node device 有权
    交换光传输网络和节点设备的方法

    公开(公告)号：US08965197B2

    公开(公告)日：2015-02-24

    申请号：US13532047

    申请日：2012-06-25

    申请人： Katsuhiro Shirai ,  Koji Takeguchi ,  Takashi Honda ,  Masahiro Shioda

    发明人： Katsuhiro Shirai ,  Koji Takeguchi ,  Takashi Honda ,  Masahiro Shioda

    IPC分类号： H04B10/00 ,  H04L12/437 ,  H04B10/275 ,  H04J3/08 ,  H04L12/40 ,  H04J3/16

    CPC分类号： H04L12/437 ,  H04B10/275 ,  H04J3/085 ,  H04J3/1652 ,  H04J2203/006 ,  H04J2203/0082 ,  H04L12/40182

    摘要： A node device in an optical transport ring network including plural node devices connected in a ring form using plural optical transmission paths so that optical transport frames of a working line and a protection line are transmitted using the plural optical transmission paths, includes a control information transmitter, when a failure occurs in the optical transmission paths, transmitting the optical transport frame to an opposing node device as a transmission destination node in the optical transmission paths, the optical transport frame including switching control information; and a switcher receiving the optical transport frame including switching control information, the optical transport frame being transmitted to the node device as the transmission destination node, forming a loop back to fold a transmission path between the plural optical transmission paths, and switching the optical transmission path from the work line to the protection line.

    摘要翻译： 包括使用多个光传输路径以环形连接的多个节点设备的光传送环网络中的节点设备，使得使用多个光传输路径发送工作线路和保护线路的光传送帧，包括控制信息发射机 当在光传输路径中发生故障时，在光传输路径中将光传输帧发送到作为传输目的地节点的对方节点设备，所述光传送帧包括切换控制信息; 以及接收包括切换控制信息的光传送帧的切换器，所述光传输帧作为发送目的地节点发送到节点设备，形成回路以折叠多个光传输路径之间的传输路径，并切换光传输 从工作线到保护线的路径。