公开(公告)号：US20100232560A1

公开(公告)日：2010-09-16

申请号：US12279104

申请日：2008-02-28

Applicant: Hiroshi Sano ,  Takafumi Ogino ,  Yoshiyuki Tanigawa ,  Shiro Kato

Inventor： Hiroshi Sano ,  Takafumi Ogino ,  Yoshiyuki Tanigawa ,  Shiro Kato

IPC: G21C7/32

CPC classification number: G21C9/004 ,  G21C15/18 ,  G21C17/0225 ,  G21D1/02 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2004/30 ,  Y02E30/40

Abstract: A pH adjusting system includes a water pit for refueling 35 that is disposed in a reactor container 10, which stores a reactor, and is capable of storing cooling water and a pH adjusting apparatus 37 that is disposed above the water pit for refueling 35 and houses a pH adjuster. The pH adjusting apparatus 37 causes a pH-adjusted solution generated by dissolving or mixing the pH adjuster to flow out to the water pit for refueling 35 below the pH adjusting apparatus 37. Consequently, even when it is difficult to dispose the pH adjusting apparatus on a floor of the water pit for refueling, it is possible to suitably perform pH adjustment in the reactor container 10.

Abstract translation: pH调节系统包括设置在存储反应器的反应器容器10中并且能够储存冷却水的反应器容器35的水坑和设置在水坑上方以用于加油35的房间的pH调节装置37 pH调节剂。 pH调节装置37使通过溶解或混合pH调节剂而产生的pH调节溶液流出到pH调节装置37下方的用于加油的水坑35。因此，即使难以将pH调节装置配置在 用于加油的水坑的地板，可以在反应容器10中适当地进行pH调节。

公开(公告)号：US07786456B2

公开(公告)日：2010-08-31

申请号：US11871095

申请日：2007-10-11

Applicant: Krishna P. Singh ,  Stephen Agace

Inventor： Krishna P. Singh ,  Stephen Agace

IPC: G21C19/06 ,  G21C19/32 ,  G21F5/00

CPC classification number: G21F5/005 ,  G21F5/10 ,  G21Y2002/201 ,  G21Y2002/501 ,  G21Y2004/30

Abstract: A system, method and apparatus for providing additional radiation shielding to a container holding radioactive materials. The invention utilizes a sleeve-like structure that is slid over a container holding high level radioactive materials to add radiation shielding protection. Because the sleeve-like structure and container are non-unitary and slidably separable from one another, crane lifting capacity is not affected. In one aspect, the invention is an apparatus comprising: a tubular shell constructed of a gamma radiation absorbing material and having an inner surface that forms a cavity having an axis, the cavity having an open top end and an open bottom end; a plurality of spacers extending from the inner surface of the shell toward the axis of the cavity, the spacers extending a first height from the inner surface of the tubular shell; and one or more flange members located at or near the open top end of the cavity extending from the tubular shell toward the axis of the cavity, the flange member extending a second height from the inner surface of the shell, the second height being greater than the first height.

Abstract translation: 一种用于向容纳放射性材料的容器提供额外辐射屏蔽的系统，方法和装置。 本发明利用一种套筒状结构，其在容纳高放射性物质的容器上滑动以增加辐射屏蔽保护。 由于套筒状结构和容器彼此不一体且可滑动地分离，起重机起重能力不受影响。 一方面，本发明是一种装置，包括：由伽马射线吸收材料构成并具有形成具有轴线的空腔的内表面的管状壳体，该空腔具有敞开的顶端和敞开的底端; 多个间隔件，其从所述壳体的内表面朝向所述空腔的轴线延伸，所述间隔件从所述管状壳体的内表面延伸第一高度; 以及一个或多个凸缘构件，其位于所述空腔的开放顶端处或附近，从所述管状壳体朝向所述空腔的轴线延伸，所述凸缘构件从所述壳体的内表面延伸第二高度，所述第二高度大于 第一高度。

公开(公告)号：US20100142666A1

公开(公告)日：2010-06-10

申请号：US12595744

申请日：2008-04-30

Applicant: Yoichiro Shimazu

Inventor： Yoichiro Shimazu

IPC: G21C7/36

CPC classification number: G21C7/00 ,  G21C7/005 ,  G21C17/00 ,  G21D3/001 ,  G21D3/04 ,  G21Y2002/201 ,  G21Y2004/40 ,  Y02E30/39

Abstract: To predict xenon oscillation at the present time and later. For this purpose, as an axial offset of a power distribution of a reactor is represented by AOp, an axial offset of a power distribution based on xenon distribution is represented by AOx, and an axial offset of a power distribution based on an iodine distribution is represented by AOi, a parameter DAOpx(=AOp−AOx) and a parameter DAOix(=AOi−AOx) are described by a relational expression of a trigonometric function and an exponential function using an angular frequency of xenon oscillation. Next, phases with respect to initial values of the parameters DAOpx and DAOix are obtained (Step S101). The parameter DAOpx and the parameter DAOix expressed by the obtained phase and a coefficient of the relational expression obtained from this phase are plotted on an X coordinate and a Y coordinate, respectively. A locus at the present time and later is predicted using the locus obtained in this manner (Step S102), and a timing of extinguishing the xenon oscillation is predicted (Step S103).

Abstract translation: 预测氙气振荡现在和以后。 为此，由于AOp表示反应堆功率分布的轴向偏移，所以基于氙分布的功率分布的轴向偏移由AOx表示，基于碘分布的功率分布的轴向偏移为 由AOi表示，参数DAOpx（= AOp-AOx）和参数DAOix（= AOi-AOx）通过使用氙振荡的角频率的三角函数和指数函数的关系表达式来描述。 接下来，获得关于参数DAOpx和DAOix的初始值的相位（步骤S101）。 通过获得的相位表示的参数DAOpx和参数DAOix以及从该相位获得的关系表达式的系数分别绘制在X坐标和Y坐标上。 使用以这种方式获得的轨迹预测当前时间和之后的轨迹（步骤S102），并且预测氙振荡的熄灭时间（步骤S103）。

公开(公告)号：US20100111243A1

公开(公告)日：2010-05-06

申请号：US12448340

申请日：2007-11-16

Applicant: Michel Monchanin ,  Thierry Delannoy ,  Didier Pergue ,  Roman Ferry

Inventor： Michel Monchanin ,  Thierry Delannoy ,  Didier Pergue ,  Roman Ferry

IPC: G21C5/06 ,  G21C7/117 ,  G21C3/326

CPC classification number: G21C5/06 ,  G21C3/334 ,  G21C7/117 ,  G21Y2002/201 ,  G21Y2004/30 ,  Y02E30/32 ,  Y02E30/39

Abstract: A fixed cluster for the core of pressurized-water nuclear reactor including rods and a holder for rods. The holder includes: an upper head; fins extending radially towards the outside from the upper head; systems for mounting the rods and distributed on the fins; and at least two abutment elements on the upper plate of the core, each of the abutment elements protruding longitudinally from a respective fin beyond the mounting systems so as to be vertically oriented towards the top when the fixed cluster is provided on a nuclear fuel assembly.

Abstract translation: 用于加压水核反应堆核心的固定集群，包括棒和用于棒的支架。 支架包括：上头部; 翅片从上部头部朝向外部径向延伸; 用于安装杆并分布在翅片上的系统; 以及在所述芯的上板上的至少两个邻接元件，每个所述抵接元件从相应的翅片纵向突出超过所述安装系统，以便当所述固定的集群设置在核燃料组件上时朝向所述顶部垂直定向。

公开(公告)号：US07702060B2

公开(公告)日：2010-04-20

申请号：US11583789

申请日：2006-10-20

Applicant: Michael Scott DeFilippis

Inventor： Michael Scott DeFilippis

IPC: G21C3/00

CPC classification number: G21C3/322 ,  G21C3/324 ,  G21Y2002/201 ,  G21Y2002/302 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/31 ,  Y02E30/38

Abstract: A fuel channel for housing a fuel rod bundle in a boiling water nuclear reactor includes an expanded section to create an increased flow area at a top of the fuel channel and thereby reduce a pressure drop through the fuel channel. The expanded section eliminates a need for channel spacers and a fastener guard.

Abstract translation: 用于在沸水核反应堆中容纳燃料棒束的燃料通道包括膨胀部分，以在燃料通道的顶部产生增加的流动面积，从而减少通过燃料通道的压降。 扩展部分消除了对通道间隔件和紧固件防护件的需要。

公开(公告)号：US07680319B2

公开(公告)日：2010-03-16

申请号：US10580513

申请日：2004-11-10

Applicant: Philippe Mahe

Inventor： Philippe Mahe

IPC: G06K9/00 ,  G21C17/00 ,  H01L27/146

CPC classification number: G06T7/0004 ,  G01N21/952 ,  G01N23/18 ,  G06T2207/30164 ,  G21C17/06 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2004/40

Abstract: A method for the non-destructive testing of an element for a nuclear reactor having the steps of: a) acquiring a radiographic digital image of at least one area in element, b) creating a reference image through the digital processing of the image obtained, and c) comparing the image obtained, processed if necessary, with the reference image to detect the presence of defects.

Abstract translation: 一种用于核反应堆元件的非破坏性测试的方法，具有以下步骤：a）获取元件中的至少一个区域的射线照相数字图像，b）通过所获得的图像的数字处理产生参考图像， 以及c）将获得的图像（如果需要的话）与参考图像进行比较以检测缺陷的存在。

公开(公告)号：US07616727B2

公开(公告)日：2009-11-10

申请号：US12213855

申请日：2008-06-25

Applicant: Steven B. Sutton ,  David J. Kropaczek ,  Christian C. Oyarzun ,  Mehdi Asgari

Inventor： Steven B. Sutton ,  David J. Kropaczek ,  Christian C. Oyarzun ,  Mehdi Asgari

IPC: G21C19/00

CPC classification number: G21C19/205 ,  G21D3/001 ,  G21Y2002/201 ,  G21Y2004/40 ,  Y02E30/40

Abstract: A method of fuel bundle consideration in a reactor. The method includes creating or editing bundle groups including fuel bundles.

Abstract translation: 在反应器中考虑燃料束的方法。 该方法包括创建或编辑包括燃料束的束组。

公开(公告)号：US07613272B2

公开(公告)日：2009-11-03

申请号：US12213853

申请日：2008-06-25

Applicant: Steven B. Sutton ,  David J. Kropaczek ,  Christian C. Oyarzun ,  Mehdi Asgari

Inventor： Steven B. Sutton ,  David J. Kropaczek ,  Christian C. Oyarzun ,  Mehdi Asgari

IPC: G21C19/00

CPC classification number: G21C19/205 ,  G21D3/001 ,  G21Y2002/201 ,  G21Y2004/40 ,  Y02E30/40

Abstract: A method of fuel bundle consideration in a reactor. The method includes creating or editing bundle groups including fuel bundles.

Abstract translation: 在反应器中考虑燃料束的方法。 该方法包括创建或编辑包括燃料束的束组。

公开(公告)号：US20090252271A1

公开(公告)日：2009-10-08

申请号：US12345438

申请日：2008-12-29

Applicant: Makoto Ueda ,  Hironori Kumanomido ,  Ishi Mitsuhashi ,  Tsukasa Kikuchi ,  Kenichi Yoshioka ,  Tomoharu Sasaki ,  Kouji Hiraiwa

Inventor： Makoto Ueda ,  Hironori Kumanomido ,  Ishi Mitsuhashi ,  Tsukasa Kikuchi ,  Kenichi Yoshioka ,  Tomoharu Sasaki ,  Kouji Hiraiwa

IPC: G21C17/00

CPC classification number: G21C1/084 ,  G21C17/10 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2004/40 ,  Y02E30/31

Abstract: A first intensity Az expressed as Az=az×Eα, a first reference intensity A0 expressed as A0=a0×Eα, a second intensity Bz expressed as Bz=bz×E, and a second reference intensity B0=b0×E, are evaluated. The first intensity and the first reference intensity are of radioactive nuclides generated by a neutron capture reaction of a heavy nuclide or a fission product nuclide. The second intensity and the second reference intensity are of radioactive fission product nuclides except nuclides generated by a neutron capture reaction. The reference intensities are measured where the void fraction is known. Also a correlation curve of (az/a0) and a void fraction is evaluated. Finally an axial void fraction distribution is evaluated based on the value of (az/a0) and the correlation curve.

Abstract translation: 表示为Az = azxEalpha的第一强度Az，表示为A0 = a0xEalpha的第一参考强度A0，表示为Bz = bzxE的第二强度Bz和第二参考强度B0 = b0xE。 第一强度和第一参考强度是由重核素或裂变产物核素的中子捕获反应产生的放射性核素。 第二强度和第二参考强度是放射性裂变产物核素，除了由中子俘获反应产生的核素外。 在已知空隙率的情况下测量参考强度。 还评估（az / a0）和空隙率的相关曲线。 最后，基于（az / a0）的值和相关曲线来评估轴向空隙率分布。

公开(公告)号：US20090225927A1

公开(公告)日：2009-09-10

申请号：US12400204

申请日：2009-03-09

Applicant: Bernd Eckardt ,  Robert Feuerbach

Inventor： Bernd Eckardt ,  Robert Feuerbach

IPC: G21C9/06

CPC classification number: G21C9/06 ,  G21C19/317 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2002/207 ,  G21Y2002/50 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/40

Abstract: A method and a system for catalytic recombination of hydrogen, which is carried in a gas flow, with oxygen, has the gas flow passed through a reaction zone with a number of catalytic converter elements, with steam being added to the gas flow before it enters the reaction zone. The method and system ensure a particularly high operational reliability of the recombination device, even in varying operating conditions or with varying operating methods, in particular with regard to a hydrogen feed, which is provided as required, in the steam/feed water circuit of the installation. For this purpose, the feed rate of the steam to be added is adjusted in dependence on a measured value which is characteristic of a current actual temperature in the reaction zone.

Abstract translation: 用气体流携带的氢与氧气进行催化重组的方法和系统具有气流通过反应区与多个催化转化元件，蒸汽在其进入之前被加到气流中 反应区。 该方法和系统即使在变化的操作条件下或具有不同的操作方法的情况下也确保了复合装置的特别高的操作可靠性，特别是关于根据需要提供的氢气进料在蒸汽/给水回路中 安装。 为此，根据反应区中当前实际温度特征的测定值来调节添加蒸汽的进料速度。