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公开(公告)号：US4806277A
公开(公告)日：1989-02-21
申请号：US49942
申请日：1987-05-15
Applicant: Mikio Sakurai , Tsutomu Hayashi , Masayuki Izumi , Hiroshi Sasaki , Thoru Satho , Kazuo Owada
Inventor： Mikio Sakurai , Tsutomu Hayashi , Masayuki Izumi , Hiroshi Sasaki , Thoru Satho , Kazuo Owada
Abstract: The present invention relates to a decontamination method in which an object to be decontaminated is immersed in a liquid, bubbles are produced by blowing vapor in the liquid, and these bubbles are caused to burst on a solid surface which constitutes the object to be decontaminated which is brought into contact with the liquid, whereby substances adhered to the solid surface are separated and removed by the impulsive force produced when the bubbles burst. Also provided is a method of decontaminating solid surfaces which exhibits a high degree of efficiency and a high level of safety.
Abstract translation: 本发明涉及一种净化方法，其中待净化的物体浸没在液体中，通过在液体中吹入蒸气来产生气泡，并且使这些气泡在构成待净化物体的固体表面上爆裂， 与液体接触，由此当气泡爆裂时产生的冲击力分离和去除附着在固体表面上的物质。 还提供了一种净化固体表面的方法，其表现出高效率和高水平的安全性。
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Patent Agency Ranking
公开(公告)号：US4638618A
公开(公告)日：1987-01-27
申请号：US753415
申请日：1985-07-10
Applicant: Takashi Iesaka , Takaaki Wada , Ikumi Ohta , Masayuki Izumi
Inventor： Takashi Iesaka , Takaaki Wada , Ikumi Ohta , Masayuki Izumi
CPC classification number: E04F13/141 , B44C1/28 , B44C3/12 , B44C5/04 , B44C5/0461 , E04F13/0814
Abstract: A novel decorative panel comprises specified rigid decorative sheets replaceably installed on a structural support such as frame works, substrate boards or walls. Such decorative sheets can be readily installed or replaced by the use of removable fixing means such as screws. The decorative sheet is characterized by cutouts at the corners thereof and depressions adjacent to the cutouts. When four decorative sheets are assembled together, the assembled corners of the sheets form a cut-out hole where a fixing means is inserted and a depression around the hole where the head of the fixing means is recessed. By utilizing the heads of fixing means, a variety of decorative accessories or articles can be further set on the decorative panel by means of pins, hooks, rods or magnet pieces.
Abstract translation: 一种新颖的装饰板包括可替代地安装在诸如框架工程，基板或墙壁的结构支撑件上的指定的刚性装饰板。 这样的装饰片可以通过使用可拆卸的固定装置（例如螺钉）容易地安装或更换。 装饰片的特征在于其角部处有切口和与切口相邻的凹陷。 当四个装饰片组装在一起时，片的组装角部形成有一个切出孔，其中固定装置被插入并且固定装置的头部凹陷的孔周围的凹陷。 通过利用固定装置的头部，可以通过销，钩，杆或磁体片将各种装饰附件或物品进一步设置在装饰板上。
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公开(公告)号：US4400343A
公开(公告)日：1983-08-23
申请号：US085686
申请日：1979-10-17
Applicant: Masayuki Izumi , Renzo Takeda
Inventor： Masayuki Izumi , Renzo Takeda
Abstract: The pressure P.sub.R in the reactor pressure vessel, the flow rate W.sub.c of the cooling water flowing through the core in the reactor pressure vessel, and the flow rate W.sub.STM of the steam supplied from the reactor pressure vessel to the turbine are detected. The enthalpy H.sub.f of the saturated cooling water is determined on the basis of the pressure P.sub.R. The values of the cooling water flow rate W.sub.c, the steam flow rate W.sub.STM, the enthalpy H.sub.f of the saturated cooling water and a predetermined enthalpy H.sub.IN of the cooling water at the core inlet are substituted into the equation below thereby to obtain the enthalpy H.sub.fw of the feed water. ##EQU1## An error is determined between the feed-water enthalpy H.sub.fw thus obtained and the enthalpy T.sub.fw of the feed water actually supplied into the reactor pressure vessel, and on the basis of this error, the opening of the flow rate control valve on the turbine bleeding pipe is adjusted, so that the flow rate of the steam bled from the turbine for heating the feed water is adjusted according to the error.
Abstract translation: 检测反应堆压力容器中的压力PR，流过反应堆压力容器中的芯的冷却水的流量Wc以及从反应堆压力容器供给到涡轮的蒸汽的流量WSTM。 基于压力PR确定饱和冷却水的焓Hf。 将冷却水流量Wc，蒸汽流量WSTM，饱和冷却水的焓Hf和核心入口处的冷却水的预定焓HIN的值代入下面的等式，由此获得焓Hfw 给水。
在这样获得的给水焓Hfw与实际供应到反应堆压力容器中的进料水的焓Tfw之间确定误差，并且基于该误差，流量控制阀在 涡轮排气管被调节，从而根据误差调节从涡轮机排出的用于加热给水的蒸汽的流量。 -
公开(公告)号：US4472345A
公开(公告)日：1984-09-18
申请号：US286513
申请日：1981-07-24
Applicant: Junichi Tanji , Masayuki Izumi
Inventor： Junichi Tanji , Masayuki Izumi
Abstract: A load control system for a boiling water reactor power plant. A recirculating pump speed demand signal and a total steam flow demand signal are derived on the basis of combination of a first control signalproduced in accordance with a power difference signal representative of difference between an actual value of an output power of an electric generator and a set value for the generator output and a second control signal produced in accordance with a pressure difference signal representative of difference between an actually measured value of the reactor pressure and a set value therefor. Speed of a recirculating pump is controlled in dependence on the recirculating pump speed demand signal, while opening degrees of a governor valve and a bypass valve of a turbine are controlled in accordance with the total steam flow demand signal. The recirculating pump speed demand signal and the total steam flow demand signal are derived by combining the first or the second control signal which has been regulated through gain elements. Further, the power difference signal is added to the pressure difference signal for modifying the set point for the reactor pressure.
Abstract translation: 沸水反应堆发电厂负荷控制系统。 基于根据表示发电机的输出功率的实际值与设定值之间的差异的功率差信号产生的第一控制信号的组合导出循环泵速度需求信号和总蒸汽流量需求信号， 并且根据代表反应堆压力的实际测量值与其设定值之间的差异的压力差信号产生的第二控制信号。 根据循环泵速度需求信号来控制循环泵的转速，同时根据总蒸汽流量需求信号控制涡轮机的调速阀和旁通阀的开度。 通过组合通过增益元件调节的第一或第二控制信号来导出循环泵速度需求信号和总蒸汽流量需求信号。 此外，功率差信号被添加到用于修改反应堆压力的设定点的压力差信号。
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公开(公告)号：US4368171A
公开(公告)日：1983-01-11
申请号：US210168
申请日：1980-11-25
Applicant: Hiromi Maruyama , Masayuki Izumi , Sadao Uchikawa , Renzo Takeda
Inventor： Hiromi Maruyama , Masayuki Izumi , Sadao Uchikawa , Renzo Takeda
CPC classification number: G21C7/00 , G21Y2002/201 , G21Y2004/40 , Y02E30/39
Abstract: A method of operating a nuclear reactor adapted to use cross-shaped control rods. The control rods are grouped into a plurality of groups having a first group consisting of a control rod located at the center of the core, a second group consisting of 8 control rods surrounding the control rod of the first group, a third group consisting of control rods located adjacent to and outside of the control rods of the second group, and other groups determined successively in the same manner as in the third group. During the operation period other than the period in which the number of the control rods to be inserted for realizing the critical condition of said nuclear reactor is less than 6, the nuclear reactor is operated with control rod patterns in which the inserted control rods are selected from control rods of alternate or every other groups of said groups so as to include at least a pair of control rods which are located in a similar manner to that of the KNIGHT's movement on a chess board.
Abstract translation: 一种操作适于使用十字形控制棒的核反应堆的方法。 控制杆被分组成多个组，其具有第一组，第一组由位于芯的中心的控制棒组成，第二组由围绕第一组的控制棒的8个控制棒组成，第三组包括控制 位于第二组的控制棒附近和外侧的杆，以及与第三组相同的方式连续确定的其他组。 在操作期间，为了实现上述核反应堆的临界状态而插入的控制杆的数量少于6的期间，核反应堆以选择插入的控制棒的控制杆模式进行操作 从所述组的交替或其他组的控制棒中，至少包括一对控制棒，其以类似于在棋盘上的KNIGHT的运动的方式定位。
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公开(公告)号：US4248667A
公开(公告)日：1981-02-03
申请号：US936922
申请日：1978-08-25
Applicant: Sadao Uchikawa , Masayuki Izumi , Hiromi Maruyama , Renzo Takeda
Inventor： Sadao Uchikawa , Masayuki Izumi , Hiromi Maruyama , Renzo Takeda
CPC classification number: G21C7/00 , G21C7/08 , G21Y2002/201 , G21Y2004/10 , G21Y2004/40 , Y02E30/39
Abstract: A method of operating a nuclear reactor wherein the reactor is operated for more than 50% of its operating period with the control rod patterns in which, in the central region of the reactor core accounting for at least 50% thereof, the control rods inserted from the bottom of the reactor core are at the depths of between 16/24 and 21/24 of the height of the reactor core with eight control rods surrounding each of said inserted control rods being fully withdrawn.
Abstract translation: 一种操作核反应堆的方法，其中反应器的操作时间超过其操作周期的50％，其中控制杆模式在反应堆芯的中心区域占其至少50％，控制棒从 反应堆芯的底部处于反应堆堆芯的高度的16/24和21/24之间的深度，八个控制杆围绕着每个插入的控制杆被完全拉出。
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