公开(公告)号：US08903036B2

公开(公告)日：2014-12-02

申请号：US13407032

申请日：2012-02-28

Applicant: Naoyuki Ishida ,  Hisamichi Inoue

Inventor： Naoyuki Ishida ,  Hisamichi Inoue

IPC: G21C15/00 ,  F04F5/10 ,  F04F5/54 ,  G21C15/25 ,  F04F5/46

CPC classification number: F04F5/462 ,  F04F5/10 ,  F04F5/54 ,  G21C15/25 ,  Y02E30/40

Abstract: A nozzle apparatus of a jet pump includes a nozzle base member, and a plurality of nozzles installed to the nozzle base member and forming a plurality of narrowing portions, in which a fluid passage cross-sectional area of a driving fluid passage formed in the nozzle is reduced.

Abstract translation: 喷射泵的喷嘴装置包括喷嘴基部构件和安装在喷嘴基部构件上并形成多个变窄部分的多个喷嘴，其中形成在喷嘴中的驱动流体通道的流体通道横截面积 降低了。

公开(公告)号：US20140338870A1

公开(公告)日：2014-11-20

申请号：US14354120

申请日：2012-10-23

Applicant: HISAKA WORKS, LTD. ,  Hitachi-GE Nuclear Energy, Ltd.

Inventor： Isamu Hiwatashi ,  Mana Iwaki ,  Kenji Kusunoki ,  Kiyoshi Ishihama ,  Seiichi Matsumura ,  Takahisa Funabiki

IPC: F28D9/00 ,  F28F3/08

CPC classification number: F28D9/0062 ,  F28D9/005 ,  F28F3/042 ,  F28F3/08 ,  F28F3/083 ,  F28F3/10 ,  F28F2275/205

Abstract: Heat transfer plates are stacked, each being provided with a plurality of passage holes, a flow-path forming gasket is interposed between peripheries of each adjacent ones of the heat transfer plates, thereby alternately forming a first flow path to pass a high-temperature fluid, a second fluid to pass a low-temperature fluid, and communicating paths to cause the fluids to flow in and out of the first flow path and the second flow path on opposite sides of each heat transfer plate, and communicating-path forming gaskets surrounding the passage holes are interposed between adjacent ones of the heat transfer plates, thereby forming a communicating path to cause a fluid to flow in and out of the first flow path and a communicating path to cause a fluid to flow in and out the second flow path. Each communicating-path forming gasket is made up of inner and outer gasket members arranged in two lines, the inner gasket member surrounding the passage holes while the outer gasket member surrounding the inner gasket member.

Abstract translation: 传热板被堆叠，每个设置有多个通孔，每个传热板的周边之间插入流路形成垫圈，从而交替地形成第一流路以使高温流体 ，第二流体通过低温流体，以及连通路径，以使流体流入和流出在每个传热板的相对侧上的第一流动路径和第二流动路径，以及连通路径形成的垫圈围绕 通道孔插在相邻传热板之间，从而形成连通路径，以使流体流入和流出第一流路和连通路径，以使流体流入和流出第二流路 。 每个连通路径形成垫圈由内衬垫构件和外垫圈构件构成，内垫圈构件和外衬垫构件布置成两排，内垫圈构件围绕通孔，而外垫圈构件围绕内衬垫构件。

公开(公告)号：US08842797B2

公开(公告)日：2014-09-23

申请号：US13304775

申请日：2011-11-28

Applicant: Takahiro Tadokoro ,  Hiroshi Kitaguchi ,  Katsunori Ueno ,  Yutaka Iwata ,  Ryusuke Kimura

Inventor： Takahiro Tadokoro ,  Hiroshi Kitaguchi ,  Katsunori Ueno ,  Yutaka Iwata ,  Ryusuke Kimura

IPC: G21C17/00 ,  G21C17/06

CPC classification number: G21C17/063

Abstract: A gamma scanning apparatus includes a moving and fixing mechanism which moves/fixes a housing to a definite position, and a rotating and moving mechanism which moves a fuel assembly vertically in addition to rotating the assembly. A gamma-ray counting circuit measures an output of a gamma-ray detector, and a data collecting/analyzing and controlling apparatus analyzes data output from the gamma-ray counting circuit, in association with data relating to the rotation and movement of the fuel assembly by the rotating and moving mechanism. The rotating and moving mechanism, after fixing the vertical position of the fuel assembly with the housing also fixed, rotates the fuel assembly through 360° with its height kept constant, and during the 360° rotation of the fuel assembly, the gamma-ray counting circuit measures either a time average of count values of the detector during the rotation or an integral value within a fixed time.

Abstract translation: 伽马扫描装置包括将壳体移动/固定到确定位置的移动和固定机构，以及除了旋转组件之外还使燃料组件垂直移动的旋转和移动机构。 伽马射线计数电路测量伽马射线检测器的输出，并且数据收集/分析和控制装置分析与伽马射线计数电路输出的数据相关联的数据，该数据与燃料组件的旋转和运动有关 通过旋转和移动机构。 旋转和移动机构在固定燃料组件与壳体的垂直位置也固定之后，使燃料组件旋转360度，其高度保持恒定，并且在燃料组件360度旋转期间，伽马射线计数 电路测量旋转期间检测器的计数值的时间平均值或固定时间内的积分值。

公开(公告)号：US08730318B2

公开(公告)日：2014-05-20

申请号：US13160108

申请日：2011-06-14

Applicant: Kenji Nakahira ,  Atsushi Miyamoto ,  Naoki Hosoya ,  Minoru Yoshida

Inventor： Kenji Nakahira ,  Atsushi Miyamoto ,  Naoki Hosoya ,  Minoru Yoshida

IPC: H04N9/47 ,  H04N5/235 ,  G06K9/00

CPC classification number: H04N5/265 ,  H04N5/217 ,  H04N5/2628 ,  H04N7/183

Abstract: In order to obtain a quality image without deterioration owing to radiation noise in inspection using the optical video camera in high radiation environment, an inspection apparatus is formed of an image pick-up unit, an image obtaining unit which fetches a video image that contains a signal (noise) that is substantially independent of each frame obtained by the image pick-up unit, a local alignment unit which locally aligns frames with different time phases for forming the image fetched by the image obtaining unit, a frame synthesizing unit which synthesizes the plurality of frames aligned by the local alignment unit for generating a synthesis frame with an SN ratio higher than the SN ratio of the frame before frame synthesis, and an image output unit for displaying or recording the image formed of the synthesis frame generated by the frame synthesizing unit.

Abstract translation: 为了在高辐射环境下使用光学摄像机的检查中的辐射噪声获得质量图像而不劣化，检查装置由图像拾取单元，图像获取单元，其获取包含 信号（噪声），其基本上独立于由图像拾取单元获得的每个帧;局部对准单元，其对具有不同时间相位的帧进行局部对准，以形成由图像获取单元获取的图像;帧合成单元， 由本地对准单元对准的多个帧，用于产生SN比高于帧合成之前的帧的SN比的合成帧;以及图像输出单元，用于显示或记录由帧生成的合成帧形成的图像 合成单位。

公开(公告)号：US20140069810A1

公开(公告)日：2014-03-13

申请号：US13860293

申请日：2013-04-10

Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.

Inventor： Masahiko TACHIBANA ,  Kazushige ISHIDA ,  Yoichi WADA ,  Nobuyuki OTA ,  Ryosuke SHIMIZU

IPC: G01N17/02

CPC classification number: G01N17/02

Abstract: An electrochemical corrosion potential sensor has a sensor unit, a lead wire and a quasi-reference electrode. A sensor unit includes a tube-shaped insulator, a tube-shaped metal casing joined to an end portion of the insulator, and a Pt electrode joined to another end portion of the insulator. A lead wire connected to the Pt electrode passes through the insulator and the metal casing. The quasi-reference electrode disposed in the metal casing is made of a less noble metal and electrically connected with the lead wire.Since an electrochemical corrosion potential sensor has the quasi-reference electrode, the measurement of the corrosion potential of a structural member of a nuclear power plant and an abnormality occurrence (water intrusion) can be accurately detected during the operation of a nuclear power plant.

Abstract translation: 电化学腐蚀电位传感器具有传感器单元，引线和准参考电极。 传感器单元包括管状绝缘体，连接到绝缘体的端部的管状金属壳体和连接到绝缘体的另一个端部的Pt电极。 连接到Pt电极的引线穿过绝缘体和金属外壳。 设置在金属外壳中的准参考电极由较贵的金属制成，并与导线电连接。 由于电化学腐蚀电位传感器具有准参考电极，所以在核电站运行期间可以准确地检测到核电厂的结构部件的腐蚀电位的测量和异常发生（水侵入）。

公开(公告)号：US20140064427A1

公开(公告)日：2014-03-06

申请号：US14013052

申请日：2013-08-29

Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.

Inventor： Kenji NOSHITA ,  Taichi TAKII ,  Shingo ODA ,  Hidehiro IIZUKA

IPC: B01J12/00

CPC classification number: B01J12/007 ,  G21C19/317 ,  G21F9/02

Abstract: At the time of loss of coolant accident, when station blackout occurs, hydrogen, radioactive nuclides, and steam are discharged from a broken portion of a pipe connected to a reactor pressure vessel into the primary containment vessel. A passive autocatalytic hydrogen treatment apparatus installs a catalytic layer and heat exchanger tubes of a heat exchanger in a casing. High-temperature steam including hydrogen and radioactive nuclides is supplied into the heat exchanger tubes and heats gas supplied into the casing 3. The steam is condensed in the heat exchanger tubes and generates mists. The mists are removed by a mist separator together with the radioactive nuclides. The gas including hydrogen fed from the mist separator in the casing is heated by the aforementioned steam and is introduced into the catalytic layer. Hydrogen is combined with oxygen in the catalytic layer to steam.

Abstract translation: 在冷却剂事故发生时，当发生停电时，氢，放射性核素和蒸汽从与反应堆压力容器连接的管道的断裂部分排放到主容纳容器中。 无源自催化氢处理装置在壳体中安装热交换器的催化层和热交换器管。 包括氢和放射性核素的高温蒸汽被供应到热交换器管中并加热供应到壳体3中的气体。蒸汽在热交换器管中冷凝并产生雾。 通过雾化分离器与放射性核素一起除去雾。 包括从壳体中的雾化分离器供给的氢的气体被上述蒸汽加热，并被引入到催化剂层中。 氢气与催化剂层中的氧气结合成蒸汽。

公开(公告)号：US08655022B2

公开(公告)日：2014-02-18

申请号：US12707091

申请日：2010-02-17

Applicant: Ryosuke Kobayashi ,  Satoshi Okada ,  Masahiro Tooma ,  Yutaka Kometani ,  Yosuke Takatori ,  Mitsuru Odakura ,  Kojirou Kodaira

Inventor： Ryosuke Kobayashi ,  Satoshi Okada ,  Masahiro Tooma ,  Yutaka Kometani ,  Yosuke Takatori ,  Mitsuru Odakura ,  Kojirou Kodaira

IPC: G06K9/00 ,  G06K9/32

CPC classification number: G21C17/013 ,  G06T7/77 ,  G06T2207/30164 ,  G06T2207/30244 ,  G06T2207/30252

Abstract: The position detection system includes a pressure sensor that detects the vertical position of an underwater vehicle, a range sensor unit that detects the relative distances of the underwater vehicle from its surrounding structures; a measurement image acquisition unit that acquires a measurement image of the horizontal plane, an image storage unit that stores images, an image selector that selects one of the stored images that corresponds to the horizontal plane in which the relative distances have been detected, a corresponding-area identification unit that identifies the area in the selected image that corresponds to the measurement image by performing map matching, and a horizontal position calculator that identifies, the pixel that corresponds to the position at which the relative distances have been detected and calculates the horizontal position of the underwater vehicle.

Abstract translation: 位置检测系统包括：检测水下航行器的垂直位置的压力传感器;检测水下航行器与其周围结构的相对距离的距离传感器单元; 获取水平面的测量图像的测量图像获取单元，存储图像的图像存储单元，选择与已经检测到相对距离的水平面相对应的存储图像之一的图像选择器，对应于 - 区域识别单元，其通过执行地图匹配来识别所选择的图像中与测量图像相对应的区域;以及水平位置计算器，其识别与已经检测到相对距离的位置相对应的像素并且计算水平 水下航行器的位置。

公开(公告)号：US20140037037A1

公开(公告)日：2014-02-06

申请号：US13679287

申请日：2012-11-16

Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.

Inventor： Tsuyoshi ITO ,  Hideyuki HOSOKAWA ,  Makoto NAGASE ,  Yoichi WADA ,  Kazushige ISHIDA ,  Motohiro AIZAWA

IPC: G21C19/32

CPC classification number: G21C19/32 ,  G21C17/0225 ,  G21D1/00 ,  G21F9/06 ,  G21F9/12 ,  G21F9/30 ,  Y02E30/40

Abstract: A noble metal injection apparatus is connected to a piping of a nuclear plant at the time of stop of the nuclear plant before start of the nuclear plant. In chemical decontamination, oxidation decontamination agent decomposition, and reduction decontamination on an inner surface of the pipe system are executed. After reduction decontamination, a part of an oxalic acid included in a reduction decontamination solution is decomposed and platinum is injected into the reduction decontamination solution of pH 3.5 or higher. When the platinum concentration becomes a preset concentration, a reduction agent is injected and the reduction decontamination solution including the platinum and reduction agent is brought into contact with the inner surface of the piping. The platinum is deposited on the inner surface of the piping. The injection of the platinum and reduction agent is stopped and the platinum and reduction agent are decomposed.

Abstract translation: 贵金属注入装置在核电厂启动之前停止核电站时连接到核电厂的管道。 在化学去污中，执行氧化去污剂分解和管道内表面上的还原去污。 减压除污后，还原去污溶液中含有的一部分草酸被分解，将铂注入pH 3.5以上的还原去污溶液中。 当铂浓度变为预设浓度时，注入还原剂，并且将包含铂和还原剂的还原性去污溶液与管道的内表面接触。 铂沉积在管道的内表面上。 铂和还原剂的注入停止，铂和还原剂分解。

公开(公告)号：US08616062B2

公开(公告)日：2013-12-31

申请号：US13028268

申请日：2011-02-16

Applicant: Naoyuki Kono ,  Isao Yoshida ,  Masahiro Koike ,  Yoshio Nonaka ,  Hiroyuki Nakano ,  Kenichi Otani ,  Chihiro Matsuoka ,  Masafumi Imai

Inventor： Naoyuki Kono ,  Isao Yoshida ,  Masahiro Koike ,  Yoshio Nonaka ,  Hiroyuki Nakano ,  Kenichi Otani ,  Chihiro Matsuoka ,  Masafumi Imai

IPC: G01N29/06

CPC classification number: G01N29/28 ,  G01N29/265 ,  G01N2291/101 ,  G01N2291/2675

Abstract: In an ultrasonic inspection method or ultrasonic inspection system in which an ultrasonic wave is propagated to an test object via a medium such as a liquid or a gas, an incident position of the ultrasonic wave is accurately and reliably identified. In an ultrasonic inspection method based on an immersion technique, an optical irradiator is mounted on an ultrasonic wave transmitting/receiving unit, an optical marker is irradiated from the optical irradiator to the test object, and an irradiated position of the optical marker is imaged using imaging equipment in order to perform inspection.

Abstract translation: 在超声波检查方法或超声波检查系统中，通过诸如液体或气体的介质将超声波传播到测试对象，可以精确可靠地识别超声波的入射位置。 在基于浸没技术的超声波检查方法中，将光学照相机安装在超声波发送/接收单元上，将光学标记从光学照射器照射到被检体，并且使用 成像设备进行检查。

公开(公告)号：US08571166B2

公开(公告)日：2013-10-29

申请号：US13411091

申请日：2012-03-02

Applicant: Renzo Takeda ,  Junichi Miwa ,  Kumiaki Moriya

Inventor： Renzo Takeda ,  Junichi Miwa ,  Kumiaki Moriya

IPC: G21C3/00

CPC classification number: G21C3/326 ,  G21C3/42 ,  G21C2003/3267 ,  Y02E30/38

Abstract: A core of a light water reactor having a plurality of fuel assemblies, which are loaded in said core, having nuclear fuel material containing a plurality of isotopes of transuranium nuclides, an upper blanket zone, a lower blanket zone, and a fissile zone, in which the transuranium nuclides are contained, disposed between the upper blanket zone and the lower blanket zone, wherein a ratio of Pu-239 in all the transuranium nuclides contained in the loaded fuel assembly is in a range of 40 to 60% when burnup of the fuel assembly is 0, sum of a height of the lower blanket zone and a height of the upper blanket zone is in a range of 250 to 600 mm, and the height of said lower blanket zone is in a range of 1.6 to 12 times the height of the upper blanket zone.

Abstract translation: 具有多个燃料组件的轻水反应堆的核心，其装载在所述芯体中，具有含有多个氮氧化物的多个同位素的核燃料材料，上覆层区域，下覆盖区域和裂变区域 其中包含超氧化物核素，其设置在上覆盖区域和下覆盖层区域之间，其中，当燃烧所述载体燃料组件时，包含在所述负载的燃料组件中的所有经核素核素中的Pu-239的比例在40至60％的范围内 燃料组件为0，下橡皮布区域的高度与上覆层区域的高度之和在250至600mm的范围内，并且所述下橡皮布区域的高度在1.6至12倍的范围内 上层毯的高度。