公开(公告)号：US20100251821A1

公开(公告)日：2010-10-07

申请号：US12754264

申请日：2010-04-05

Applicant: Hirohisa MIZOTA ,  Naoyuki Kono ,  Atsushi Baba

Inventor： Hirohisa MIZOTA ,  Naoyuki Kono ,  Atsushi Baba

IPC: G01N29/04

CPC classification number: G01N29/262 ,  G01N2291/0289 ,  G01N2291/106 ,  G10K11/345

Abstract: An ultrasonic measurement method and an ultrasonic measurement apparatus are capable of performing an inspection for a short time with a high SN ratio and a small variation (that depends on an inspection direction) in sensitivity in a process for detecting a defect in all directions at 360 degrees using a matrix array sensor without performing mechanical scanning in all directions, while reducing noise that is caused by a bottom surface echo. An element selecting circuit selects a group of a plurality of ultrasonic transducer elements for transmission from among ultrasonic transducer elements that constitute a two-dimensional array sensor so that the ultrasonic transducer elements for selected for transmission are arranged in line symmetry with respect to a first line symmetric axis to set the group selected for transmission. The element selecting circuit selects a group of a plurality of ultrasonic transducer elements for reception so that the ultrasonic transducer elements selected for reception are arranged in line symmetry with respect to a second line symmetric axis that is perpendicular to the first line symmetric axis to set the group selected for reception. A transmitting element selector selects, as transmitting elements, the ultrasonic transducer elements set by the element selecting circuit. A receiving element selector selects, as receiving elements, the ultrasonic transducer elements set by the element selecting circuit.

Abstract translation: 超声波测量方法和超声波测量装置能够在360度全方位检测缺陷的处理中以高SN比和小的变化（取决于检查方向）进行短时间的检查 使用矩阵阵列传感器，而不会在所有方向上执行机械扫描，同时减少由底面回波引起的噪声。 元件选择电路从构成二维阵列传感器的超声换能器元件中选择一组用于透射的超声波换能器元件，使得用于选择用于透射的超声波换能器元件相对于第一线线排列成对称 对称轴设置选择的组进行传输。 元件选择电路选择一组用于接收的超声波换能器元件，使得选择接收的超声波换能器元件相对于垂直于第一线对称轴线的第二线对称轴线对称布置， 选择接收组。 发送元件选择器选择由元件选择电路设置的超声换能器元件作为发送元件。 接收元件选择器选择由元件选择电路设置的超声换能器元件作为接收元件。

公开(公告)号：US20100136215A1

公开(公告)日：2010-06-03

申请号：US12619806

申请日：2009-11-17

Applicant: Tsuyoshi ITO ,  Hideyuki HOSOKAWA ,  Yukio HIRAMA ,  Makoto NAGASE

Inventor： Tsuyoshi ITO ,  Hideyuki HOSOKAWA ,  Yukio HIRAMA ,  Makoto NAGASE

IPC: C23C16/52 ,  B05C11/00

CPC classification number: C23C18/00

Abstract: A method for forming a ferrite film onto surface of structural member composing a plant, comprises steps of forming a ferrite film onto the wetted surface of the structural member by making contact with a film forming solution containing iron (II) ions, an oxidant for oxidizing the iron (II) ions, and a pH adjustment agent; measuring the amount of the formed ferrite film; and determining completion of the ferrite film formation based on the measured amount of the formed ferrite film. The method for forming the ferrite film onto the surface of the structural member, can shorten the time required for completing the ferrite film forming operations.

Abstract translation: 一种在构成植物的构件的表面上形成铁氧体膜的方法，包括以下步骤：通过与含铁（II）离子的成膜溶液，氧化剂（氧化剂）接触形成铁氧体膜到结构构件的润湿表面上 铁（II）离子和pH调节剂; 测量形成的铁氧体膜的量; 并且基于所形成的铁氧体膜的测量量来确定铁氧体膜形成的完成。 在结构件的表面上形成铁氧体膜的方法可以缩短完成铁氧体膜形成操作所需的时间。

公开(公告)号：US07693251B2

公开(公告)日：2010-04-06

申请号：US11834230

申请日：2007-08-06

Applicant: Naoyuki Kono ,  Masahiro Miki ,  Yoshio Nonaka ,  Motoyuki Nakamura

Inventor： Naoyuki Kono ,  Masahiro Miki ,  Yoshio Nonaka ,  Motoyuki Nakamura

IPC: G21C17/10

CPC classification number: G01N29/11 ,  G01N29/0609 ,  G01N29/262 ,  G01N2291/02854 ,  G01N2291/02872 ,  G01N2291/044 ,  G01N2291/2675 ,  G21C17/003 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2002/401 ,  G21Y2004/30 ,  G21Y2004/40

Abstract: The ultrasonic probe of the ultrasonic inspection apparatus, which is pushed onto the outer surface of the reactor pressure vessel, transmits and receives an ultrasonic wave to and from a penetration having a welded portion while changing an incident angle of the ultrasonic wave. Based on a result of reception of an echo obtained by the reflection of the ultrasonic wave on the inner surface of the penetration, an inclination angle of the penetration relative to a wall surface of the reactor pressure vessel is measured. A circumferential direction position of the penetration, which corresponds to the inclination angle, is calculated based on the relationship of an inclination angle and a circumferential direction position, which have been calculated in advance. Then, the circumferential direction position can be obtained as information on the inspection position.

Abstract translation: 超声波检查装置的超声波探头被推压到反应堆压力容器的外表面，并且在改变超声波的入射角的同时，向具有焊接部分的穿透物进行超声波接收超声波。 基于通过在穿透的内表面上反射超声波而获得的回波的接收结果，测量相对于反应堆压力容器的壁面的穿透倾角。 基于预先计算出的倾斜角度与圆周方向位置的关系来计算穿透的与倾斜角对应的圆周方向位置。 然后，作为关于检查位置的信息可以获得圆周方向位置。

公开(公告)号：US07684535B2

公开(公告)日：2010-03-23

申请号：US11679978

申请日：2007-02-28

Applicant: Shizuka Hirako

Inventor： Shizuka Hirako

IPC: G21C9/00

CPC classification number: G21C9/004 ,  G21C13/00 ,  G21Y2002/302 ,  G21Y2004/30 ,  Y02E30/40

Abstract: A reactor containment vessel of the present invention has a primary reactor containment vessel disposing a dry well for storing a reactor pressure vessel, a wet well for storing a pressure suppression pool, and an equipment room disposing below said pressure suppression pool inside thereof. Further, the primary reactor containment vessel includes an outer cylindrical wall reaching to a base mat from a top slab of the primary reactor containment vessel and facing the drywell, the pressure suppression pool and the equipment room respectively, an inner cylindrical wall facing the pressure suppression pool and the equipment room respectively, and a pressure suppression pool floor partitioning among the pressure suppression pool and the equipment room, and an outside portion of the outer cylindrical wall, an inside portion of the inner cylindrical wall, an outside portion of the ceiling and a lower portion of the pressure suppression pool floor are formed of a steel plate reinforced concrete respectively.The reactor containment vessel can contribute to shorten construction period and thereby improve economic efficiency of nuclear power generation facilities.

Abstract translation: 本发明的反应堆容纳容器具有设置用于储存反应堆压力容器的干燥井，用于存储压力抑制池的湿井和设置在其内部的压力抑制池下方的设备室的初级反应堆容纳容器。 此外，主反应堆容纳容器包括从主反应堆容纳容器的顶板到达基垫的外圆筒壁，分别面向干井，压力池和设备室，面向压力抑制的内圆筒壁 池和设备室，以及在压力池和设备室之间的压力抑制池地板分隔，外圆筒壁的外部，内圆筒壁的内侧部分，天花板的外侧部分和 压力抑制池底部的下部分别由钢板钢筋混凝土构成。 反应堆安全壳可以缩短施工期，从而提高核发电设施的经济效益。

公开(公告)号：US20090187384A1

公开(公告)日：2009-07-23

申请号：US12354236

申请日：2009-01-15

Applicant: Hisanori NONAKA ,  Kenji Araki ,  Norito Watanabe ,  Yoshibumi Fukuda ,  Toshiyuki Miyake ,  Masatoshi Takada ,  Hisako Okada

Inventor： Hisanori NONAKA ,  Kenji Araki ,  Norito Watanabe ,  Yoshibumi Fukuda ,  Toshiyuki Miyake ,  Masatoshi Takada ,  Hisako Okada

IPC: G06F17/50 ,  G06Q10/00 ,  G06Q50/00

CPC classification number: G06F17/5009 ,  G06F17/5004 ,  G06Q10/1093 ,  G06Q30/0201

Abstract: A method for generating data of plant construction simulation, in which a scheduling system and a CAD system are used to prepare a construction plan, comprises steps of:managing a construction work managed by said scheduling system and a plant part used in the construction work and managed by the CAD system in association with each other; andperforming processing for associating the plant part with each of a plurality of lower construction work constituting the construction work, which are produced when the construction works are broken down.

Abstract translation: 一种用于生成工厂施工模拟数据的方法，其中使用调度系统和CAD系统来准备施工计划，包括以下步骤：管理由所述调度系统管理的施工工作和在施工作业中使用的设备部件， 由CAD系统相互协调管理; 以及执行用于将所述工厂部件与构成施工作业的多个下部施工工作相关联的处理，所述下部施工工作在施工工程分解时产生。

公开(公告)号：US07429807B2

公开(公告)日：2008-09-30

申请号：US11400211

申请日：2006-04-10

Applicant: Yukihiro Katayama ,  Masashi Sugiyama ,  Shunya Morita ,  Hirohisa Satomi

Inventor： Yukihiro Katayama ,  Masashi Sugiyama ,  Shunya Morita ,  Hirohisa Satomi

IPC: H02J7/00 ,  H02J9/00

CPC classification number: G21C15/243 ,  F04D7/08 ,  F04D15/0066 ,  F04D15/0077 ,  G21Y2002/207 ,  G21Y2002/304 ,  G21Y2004/304 ,  Y02E30/40 ,  Y10T307/50 ,  Y10T307/615

Abstract: An adjustable speed drive system for a primary loop recirculation pump capable of keeping a PLR pump operating even if a single malfunction occurred in a main adjustable speed drive circuit portion. The drive system for the primary loop recirculation pump has a backup main adjustable speed drive circuit portion, and a breaker for switching between an incoming destination and an outputting destination of the backup main adjustable speed drive circuit portion. A control signal of an inverter control portion is switched to control an inverter included in the backup main adjustable speed drive circuit portion, and when a malfunction occurred in the adjustable speed drive main circuit, by switching to the backup main adjustable speed drive circuit portion, the primary loop recirculation pump of a nuclear reactor is continuously controlled and operated.

Abstract translation: 一种用于主回路再循环泵的可调速驱动系统，即使在主调速驱动电路部分发生单一故障，也能够保持PLR泵的工作。 用于主回路再循环泵的驱动系统具有备用主调速驱动电路部分和用于在备用主调速驱动电路部分的输入目的地和输出目的地之间切换的断路器。 切换逆变器控制部的控制信号，控制备用主调速驱动电路部所包含的逆变器，在调速驱动主电路发生故障时，通过切换到备用主调速驱动电路部， 核反应堆的主回路再循环泵被连续地控制和操作。

公开(公告)号：US07333584B2

公开(公告)日：2008-02-19

申请号：US11033953

申请日：2005-01-13

Applicant: Kazuaki Kitou ,  Masao Chaki ,  Kouji Shina ,  Motoo Aoyama ,  Masaya Ohtsuka ,  Masayuki Nagasawa ,  Minoru Okura ,  Seiji Nemoto ,  Yasuhiro Takahashi

Inventor： Kazuaki Kitou ,  Masao Chaki ,  Kouji Shina ,  Motoo Aoyama ,  Masaya Ohtsuka ,  Masayuki Nagasawa ,  Minoru Okura ,  Seiji Nemoto ,  Yasuhiro Takahashi

IPC: G21C7/00

CPC classification number: G21C1/08 ,  G21D3/00 ,  G21Y2002/201 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/39

Abstract: A nuclear power plant and method of operation for augmenting a second reactor thermal power output in a second operation cycle to a level larger than a first reactor thermal power output in the previous operation cycle. The plant is equipped, for example, with a reactor; a steam loop comprising high and low pressure turbines; a condenser for condensing steam discharged therefrom the low pressure turbine; a feedwater heater for heating feedwater supplied from the condenser; and a feedwater loop for leading feedwater discharged from the feedwater heater to the reactor. The operation method includes decreasing a ratio of extraction steam which is led to the feedwater heater from a steam loop in the second operation cycle.

Abstract translation: 一种核电站和操作方法，用于在第二操作周期中将第二反应堆热功率输出增加到大于先前操作周期中的第一反应堆热功率输出的水平。 该工厂装备有例如反应堆; 包括高压和低压涡轮机的蒸汽回路; 用于冷凝从其排出的蒸汽的冷凝器; 用于加热从冷凝器供给的给水的给水加热器; 以及用于从给水加热器排放到反应器的引导给水的给水回路。 操作方法包括在第二操作循环中从蒸汽回路减少引导给水加热器的抽取蒸汽的比例。

公开(公告)号：US20240312658A1

公开(公告)日：2024-09-19

申请号：US18604134

申请日：2024-03-13

Applicant: Hitachi-GE Nuclear Energy, Ltd.

Inventor： Yohei MURAKAMI ,  Shunya Morita

IPC: G21D3/04 ,  G21D3/00

CPC classification number: G21D3/04 ,  G21D3/001

Abstract: The supply amount of reactive power can be expanded while the soundness of a nuclear reactor and a BOP. A control apparatus of a power generation plant connected to a power system including a power system stability degree previous evaluation unit that evaluates a stability degree at the time of the predicted failure of the power system, a nuclear power safety evaluation unit, and a current day power generation control instruction unit that corrects a required power supply amount given from the outside according to the evaluation result of the power system stability degree previous evaluation unit and the evaluation result of the nuclear power safety evaluation unit, in which the generated power of the power generation plant is adjusted by a signal from the current day power generation control instruction unit.

公开(公告)号：US20240219317A1

公开(公告)日：2024-07-04

申请号：US18389906

申请日：2023-12-20

Applicant: Hitachi-GE Nuclear Energy, Ltd.

Inventor： Masahiro MIKI ,  Kaname SAGA ,  Yoshizumi FUKUHARA ,  Junta YAMADA ,  Michiaki KUROSAKI ,  Akihiko HIRANO

IPC: G01N21/952 ,  G06T7/00

CPC classification number: G01N21/952 ,  G06T7/0002 ,  G06T2207/30108 ,  H04N7/183

Abstract: A pipe inspection method includes a first process of disposing an outside coil and a camera outside a thermal insulator, a second process of measuring the thickness of a pipe at a position of an ultrasonic sensor fixed in advance to an inside of the thermal insulator and to the outer surface of the pipe, by using the ultrasonic sensor, an inside coil, the outside coil, and a controller, a third process of photographing the thermal insulator with the camera, a fourth process of removing the thermal insulator from the pipe when judging an abnormality in the thickness of the pipe at the position of the ultrasonic sensor or in the appearance of the thermal insulator, a fifth process of disposing another ultrasonic sensor on the outer surface of the pipe, and a sixth process of measuring the thickness of the pipe at the position of the other ultrasonic sensor.

公开(公告)号：US20240183527A1

公开(公告)日：2024-06-06

申请号：US18520976

申请日：2023-11-28

Applicant: Hitachi-GE Nuclear Energy, Ltd.

Inventor： Kiyoshi FUJIMOTO ,  Naoyuki ISHIDA

IPC: F22B37/30 ,  F22B37/40 ,  F22B37/50

CPC classification number: F22B37/306 ,  F22B37/40 ,  F22B37/50

Abstract: In a steam separator including a plurality of stages of separating mechanisms, a separating mechanism in a second or subsequent stage includes vertical plates and that divide a second stage annular flow passage or a third stage annular flow passage in a circumferential direction, and eliminate a swirl component of a mixed flow continuously occurring from a second stage inner cylinder or a third stage inner cylinder to the second stage annular flow passage or the third stage annular flow passage.