专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20130121451A1 Nuclear Reactor Vibration Monitoring Apparatus and Method of Monitoring Nuclear Reactor Vibration 有权
标题翻译：核反应堆振动监测装置和核反应堆振动监测方法
公开(公告)号：US20130121451A1
公开(公告)日：2013-05-16
申请号：US13672189
申请日：2012-11-08
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Masahiro HIRATSUKA , Atsushi BABA , Masahiro KOIKE , Taro IKEZUMI , Minoru OOTAKA
IPC分类号： G21C17/003
CPC分类号： G21C17/003 , G01N29/07 , G01N29/46 , G01N2291/044 , G21C15/25 , G21C17/10 , Y02E30/31
摘要： Vibration of a jet pump installed in a reactor pressure vessel of a boiling water reactor is monitored. Ultrasonic waves are transmitted from an ultrasonic sensor installed on an outer surface of the reactor pressure vessel toward a throat and a diffuser of the jet pump. When the ultrasonic waves reach respective outer surfaces of the throat and diffuser, reflected waves are generated at the respective outer surfaces. The ultrasonic sensor receives those reflected waves. The ultrasonic signal process section obtains a distance in the horizontal direction between the throat and the diffuser based on a time difference of the reflected waves reflected from respective reflection surfaces of the throat and diffuser and a sound speed in reactor water in the neighborhood of the throat and diffuser. A relative vibration is obtained based on the change with time of the distance.
摘要翻译：监测安装在沸水反应器的反应堆压力容器中的喷射泵的振动。超声波从安装在反应堆压力容器的外表面上的超声波传感器传送到喷射泵的喉部和扩散器。当超声波到达喉部和扩散器的相应外表面时，在相应的外表面产生反射波。超声波传感器接收那些反射波。超声波信号处理部基于从喉部和扩散器的各反射面反射的反射波的时间差和咽喉附近的反应堆水中的声速来获得喉部与扩散器之间的水平方向的距离和扩散器。基于距离随时间的变化获得相对振动。

32. 发明授权

US08422617B2 Core of light water reactor and fuel assembly 有权
标题翻译：轻水反应堆和燃料组件的核心
公开(公告)号：US08422617B2
公开(公告)日：2013-04-16
申请号：US12537452
申请日：2009-08-07
申请人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
发明人： Renzo Takeda , Junichi Miwa , Kumiaki Moriya
IPC分类号： G21C1/04
CPC分类号： G21C3/326 , G21C3/42 , G21C2003/3267 , Y02E30/38
摘要： 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.
摘要翻译：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，设置在上覆盖区域和下覆盖区域之间; 其中，当所述燃料组件的燃耗为0时，包含在所述装载的燃料组件中的所有超铀核素中的Pu-239的比率在40至60％的范围内; 下橡皮布区域的高度和上覆层区域的高度之和在250至600mm的范围内; 并且所述下覆盖带的高度在上毯区的高度的1.6至12倍的范围内。

33. 发明申请

US20120294407A1 Nuclear Power Plant, Fuel Pool Water Cooling Facility and Method Thereof 审中-公开
标题翻译：核电厂，燃料池水冷却设施及其方法
公开(公告)号：US20120294407A1
公开(公告)日：2012-11-22
申请号：US13455599
申请日：2012-04-25
申请人： Koji Namba , Masaya Ohtsuka , Koji Fujimura
发明人： Koji Namba , Masaya Ohtsuka , Koji Fujimura
IPC分类号： G21C19/00
CPC分类号： G21C19/07 , G21C9/004 , G21D3/06 , Y02E30/40
摘要： A nuclear power plant and a fuel pool water cooling facility and method are provided that can suppress the decrease of a water level in a fuel pool with no power supply at the time of malfunction of a circulating water system.The nuclear power plant includes a reactor pressure vessel 2 that encompasses a reactor 1 containing nuclear fuel; a containment vessel 3 for housing the reactor pressure vessel 2; a fuel pool 11 for storing spent fuel 12; a reactor building 10 that houses the reactor pressure vessel 2, the containment vessel 3 and the fuel pool 11; a circulating water system 21 adapted to forced-circulating-cool the fuel pool water 14 in the fuel pool 11; and at least one heat pipe 13 for transferring heat of the fuel pool water 14 in the fuel pool 11 and discharging the heat to the atmosphere.
摘要翻译：提供一种核电站和燃料池水冷却设备和方法，其能够抑制在循环水系统发生故障时没有电力供应的燃料池中的水位的下降。核电站包括反应堆压力容器2，其包含含有核燃料的反应器1; 用于容纳反应堆压力容器2的容纳容器3; 用于储存乏燃料12的燃料池11; 容纳反应堆压力容器2的反应堆10，容纳容器3和燃料池11; 适于强制循环冷却燃料池11中的燃料池水14的循环水系统21; 以及至少一个热管13，用于将燃料池11中的燃料池水14的热传递到燃料池11中并将热量排放到大气中。

34. 发明授权

US08213563B1 Control rod 失效
标题翻译：控制杆
公开(公告)号：US08213563B1
公开(公告)日：2012-07-03
申请号：US12019103
申请日：2008-01-24
申请人： Takayuki Arakawa , Koichi Machida , Norio Kawashima , Kazuki Kobayashi , Yoshiharu Kikuchi
发明人： Takayuki Arakawa , Koichi Machida , Norio Kawashima , Kazuki Kobayashi , Yoshiharu Kikuchi
IPC分类号： G21C7/00
CPC分类号： G21C7/113 , G21C7/10 , Y02E30/39
摘要： A control rod includes a tie-rod, a handle mounted to an upper end portion of the tie-rod, either a connector plate or a fall velocity limiter mounted to a lower end portion of the tie-rod, sheaths having a U-shaped cross-section, welded intermittently to the tie-rod at a plurality of locations in the axial direction of the tie-rod, and having an upper end welded to the handle and a lower end welded to either the connector plate or the fall velocity limiter, and a neutron absorbing member disposed inside each of the sheaths. An upper end of a weld portion located at uppermost position in an axial direction of the tie-rod among a plurality of weld portions between the tie-rod and the sheath is disposed at a position within a range between 0.8 and 13% of total axial length Ls of the sheath below an upper end of the sheath.
摘要翻译：控制杆包括拉杆，安装到拉杆的上端部分的手柄，安装到拉杆的下端部分的连接板或下落速度限制器，具有U形的护套横截面，在连杆的轴向方向上的多个位置处间断地焊接到拉杆，并且具有焊接到手柄的上端，以及焊接到连接器板或下落速度限制器的下端以及设置在每个护套内的中子吸收构件。位于拉杆和护套之间的多个焊接部分中的位于拉杆的轴向方向上的最上位置处的焊接部分的上端设置在总轴向的0.8和13％之间的范围内的位置在鞘的上端下方的鞘的长度Ls。

35. 发明授权

US08210043B2 Ultrasonic measurement method, ultrasonic measurement apparatus, and ultrasonic sensor 有权
标题翻译：超声波测量方法，超声波测量装置和超声波传感器
公开(公告)号：US08210043B2
公开(公告)日：2012-07-03
申请号：US12754264
申请日：2010-04-05
申请人： Hirohisa Mizota , Naoyuki Kono , Atsushi Baba
发明人： Hirohisa Mizota , Naoyuki Kono , Atsushi Baba
IPC分类号： G01N29/04
CPC分类号： G01N29/262 , G01N2291/0289 , G01N2291/106 , G10K11/345
摘要： 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.
摘要翻译：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。

36. 发明申请

US20120026317A1 Inspection Apparatus and Method for Producing Image for Inspection 有权
标题翻译：检验仪器及其检测方法
公开(公告)号：US20120026317A1
公开(公告)日：2012-02-02
申请号：US13160108
申请日：2011-06-14
申请人： Kenji NAKAHIRA , Atsushi Miyamoto , Naoki Hosoya , Minoru Yoshida
发明人： Kenji NAKAHIRA , Atsushi Miyamoto , Naoki Hosoya , Minoru Yoshida
IPC分类号： H04N7/18
CPC分类号： H04N5/265 , H04N5/217 , H04N5/2628 , H04N7/183
摘要： 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.
摘要翻译：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。

37. 发明申请

US20110268242A1 Hydrogen and Oxygen Recombination Catalyst, Recombination Apparatus, and Nuclear Plant 审中-公开
标题翻译：氢和氧复合催化剂，重组装置和核电厂
公开(公告)号：US20110268242A1
公开(公告)日：2011-11-03
申请号：US13095547
申请日：2011-04-27
申请人： Hidehiro IIZUKA , Motohiro AIZAWA , Toru KAWASAKI , Hirofumi MATSUBARA , Takashi NISHI , Shuichi KANNO , Yasuo YOSHII , Yoshinori EBINA , Takanobu SAKURAI , Tsukasa TAMAI , Michihito ARIOKA
发明人： Hidehiro IIZUKA , Motohiro AIZAWA , Toru KAWASAKI , Hirofumi MATSUBARA , Takashi NISHI , Shuichi KANNO , Yasuo YOSHII , Yoshinori EBINA , Takanobu SAKURAI , Tsukasa TAMAI , Michihito ARIOKA
IPC分类号： G21C15/00 , B01J21/04 , B01J21/06 , B01J21/08 , B01J8/02 , B01J23/42 , B01J23/44 , B01J23/46 , B01J23/52 , B01J23/00 , B01J29/04
CPC分类号： G21C9/06 , B01J23/40 , B01J23/52 , B01J23/8993 , B01J35/006 , B01J35/04 , B01J35/1019 , B01J37/0225 , B01J37/0242 , B01J37/06 , B01J37/18 , Y02E30/40
摘要： A recombination apparatus is provided to an off-gas system of a boiling water nuclear plant. An off-gas system pipe connected to a condenser is connected to the recombination apparatus. A catalyst layer filled with a catalyst for recombining hydrogen and oxygen is disposed in the recombination apparatus. The recombination catalyst has a percentage of the number of Pt particles whose diameters are in a range from more than 1 nm to not more than 3 nm to the numbers of Pt particles whose diameters are in a range from more than 0 nm to not more than 20 nm, falling within a range from 20 to 100%. The condenser discharges gas containing an organosilicon compound (ex. D5), hydrogen, and oxygen, which is introduced to the recombination apparatus. Use of the above recombination catalyst can improve the performance of recombining hydrogen and oxygen more than conventional catalysts and the initial performance of the catalyst can be maintained for a longer period of time.
摘要翻译：将重组装置提供给沸水核电站的废气系统。连接到冷凝器的废气系统管连接到复合装置。填充有用于重新组合氢和氧的催化剂的催化剂层设置在复合装置中。复合催化剂的直径在大于1nm至不大于3nm的范围内的Pt颗粒的数量的百分比相对于直径在大于0nm至不大于3nm的Pt颗粒的数量 20nm，处于20〜100％的范围内。冷凝器排出含有有机硅化合物（例如D5），氢气和氧气的气体，其被引入复合装置。使用上述复合催化剂可以比常规催化剂更好地提高氢和氧的再结合性能，并且催化剂的初始性能可以保持更长的时间。

38. 发明申请

US20110204871A1 Core Recognition System and Core Recognition Method 有权
标题翻译：核心识别系统和核心识别方法
公开(公告)号：US20110204871A1
公开(公告)日：2011-08-25
申请号：US12951980
申请日：2010-11-22
申请人： Mitsuo USAMI , Ryosuke Shigemi
发明人： Mitsuo USAMI , Ryosuke Shigemi
IPC分类号： G01R31/02
CPC分类号： G06K19/07749
摘要： An object of the invention is to prevent a human error, greatly reducing man-hours and to securely identify a core. To achieve the object, a request for a serial number is first made via a conductor of a core from a recognition unit that functions as a master to a recognition unit that functions as a slave. Next, the recognition unit as the slave reads a serial number for an IC tag and transmits the serial number via the conductor of the core. The recognition unit as the master receives the serial number transmitted from the recognition unit as the slave and collates the serial number and a serial number stored in an IC tag. It is ascertained by the collation that the conduction of the core is correctly made and it is displayed on a display of the recognition unit as the master and others that no disconnection on the way and no error in selecting an end of wiring are caused.
摘要翻译：本发明的目的是防止人为错误，大大减少工时和安全地识别核心。为了实现该目的，首先通过核心的导体从作为主机的识别单元到作为从设备的识别单元进行序列号的请求。接下来，作为从机的识别单元读取IC标签的序列号，并通过核心的导体发送序列号。作为主机的识别单元接收从作为从机的识别单元发送的序列号，并对序列号和存储在IC标签中的序列号进行核对。通过核对确定核心的导通被正确地进行，并且将其作为主机显示在识别单元的显示器上，并且在路上没有断开，并且没有引起选择布线结束的错误。

39. 发明申请

US20110166807A1 ULTRASONIC INSPECTION METHOD AND ULTRASONIC INSPECTION DEVICE 有权
标题翻译：超声检查方法和超声检查装置
公开(公告)号：US20110166807A1
公开(公告)日：2011-07-07
申请号：US12975414
申请日：2010-12-22
申请人： So KITAZAWA , Naoyuki KONO , Atsushi BABA
发明人： So KITAZAWA , Naoyuki KONO , Atsushi BABA
IPC分类号： G06F19/00
CPC分类号： G01N29/0663 , G01N29/262 , G01N29/4409 , G01N2291/105
摘要： An ultrasonic inspection method and an ultrasonic inspection device allow three-dimensional inspection data and three-dimensional shape data to be appropriately positioned on a display screen and allow a defect echo and a shape echo to be quickly identified even when information on the relative positions of a probe and an object to be inspected is not provided. The ultrasonic inspection data that is generated from the waveforms of ultrasonic waves received by an ultrasonic probe is compared with a plurality of ultrasonic propagation data pieces calculated by a ray tracing method on the basis of the three-dimensional shape data on an object to be inspected. The position of the three-dimensional inspection data or the three-dimensional shape data is moved relative to the other data position on the basis of the comparison results, thereby displaying the three-dimensional inspection data and the three-dimensional shape data while overlapping each other.
摘要翻译：超声波检查方法和超声波检查装置允许三维检查数据和三维形状数据适当地定位在显示屏幕上，并且即使当关于相对位置的信息的信息也可以快速识别缺陷回波和形状回波不提供探针和被检查物体。将由超声波探头接收的超声波的波形产生的超声波检查数据与通过光线追踪方法计算出的多个超声波传播数据进行比较，并根据对被检体的三维形状数据。基于比较结果，三维检查数据或三维形状数据的位置相对于其他数据位置移动，从而显示三维检查数据和三维形状数据，同时重叠每个其他。

40. 发明申请

US20110164720A1 CORE OF LIGHT WATER REACTOR AND FUEL ASSEMBLY 有权
标题翻译：轻水反应堆和燃料组件的核心
公开(公告)号：US20110164720A1
公开(公告)日：2011-07-07
申请号：US12978198
申请日：2010-12-23
申请人： Renzo TAKEDA , Junichi Miwa , Kumiaki Moriya
发明人： Renzo TAKEDA , Junichi Miwa , Kumiaki Moriya
IPC分类号： G21C1/04
CPC分类号： G21C3/328 , G21C1/084 , G21C3/42 , G21C5/00 , G21C5/02 , G21C19/44 , Y02E30/38 , Y02W30/882
摘要： A core of a light water reactor has a plurality of fuel assemblies. The fuel assemblies include a plurality of fuel rods in which a lower end is supported by a lower tie-plate and an upper end is supported by an upper tie-plate. The fuel rods form plenums above a nuclear fuel material zone and have a neutron absorbing material filling zone under the nuclear fuel material zone. Neutron absorbing members attached to the upper tie-plate are disposed between mutual plenums of the neighboring fuel rods above the nuclear fuel material zone. The neutron absorbing members have a length of 500 mm and are positioned at a distance of 300 mm from the nuclear fuel material zone. Even if the overall core is assumed to become a state of 100% void, no positive reactivity is inserted to the core.
摘要翻译：轻水反应堆的核心具有多个燃料组件。燃料组件包括多个燃料棒，其中下端由下连接板支撑，上端由上连接板支撑。燃料棒在核燃料材料区之上形成集气室，并在核燃料材料区下方具有中子吸收材料填充区。附接到上连接板的中子吸收构件设置在核燃料材料区域上方的相邻燃料棒的相互增压室之间。中子吸收构件具有500mm的长度并且位于与核燃料材料区300mm的距离处。即使假设整个核心成为100％空白的状态，也不会向核心插入积极的反应性。

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