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1. 发明专利

JP2003329792A Apparatus and method for measuring core flow rate 有权
标题翻译：测量核心流速的装置和方法
公开(公告)号：JP2003329792A
公开(公告)日：2003-11-19
申请号：JP2002133438
申请日：2002-05-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMADA IZUMI , ARITA SETSUO , OTSUKA MASAYA , HASEGAWA MAKOTO , SONEDA HIDEO , HASHIMOTO KAZUYOSHI , SUZUKI KEIJI , UTENA SHUNSUKE
IPC分类号： G21C17/032
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for measuring core flow rate capable of measuring core flow rate of a boiling water reactor stably for a long time after the operation of a plant is started, in a simple constitution of equipment, and provide a method for measuring core flow rate. SOLUTION: The apparatus comprises a plurality of ultrasonic transmitter/ receiver means installed in the circumference of an outer wall constituting a pressure vessel of the boiling water reactor and a core flow rate calculating means for obtaining mean linear flow rates of a cooling medium in downcomers corresponding to installation positions of the ultrasonic transmitter/receiver means from propagation times of ultrasonic waves in the downcomers measured by the respective ultrasonic transmitter/receiver means and calculating the core flow rate of the cooling medium by using the mean linear flow rates thus obtained. The ultrasonic transmitter/receiver means are installed in lower zones of the downcomers where substantially no bubbles are present in rated operation of the reactor. The lower zone of the downcomer corresponds to a region within 3 m upward from a top of an internal pump. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于测量在开始操作植物之后长时间稳定地测量沸水反应堆的核心流量的芯流量的装置，以简单的设备结构，以及提供一种测量核心流量的方法。解决方案：该装置包括安装在构成沸水反应堆的压力容器的外壁的圆周中的多个超声波发射/接收装置和用于获得冷却介质的平均线性流速的芯流量计算装置对应于超声波发射器/接收器装置的安装位置的降液器是由各个超声波发射器/接收器装置测量的降液管中的超声波的传播时间，并通过使用由此获得的平均线性流速计算冷却介质的核心流速。超声波发射器/接收器装置安装在下降管的下部区域中，在反应器的额定运行中基本上不存在气泡。降液管的下部区域对应于从内部泵的顶部向上3m内的区域。版权所有（C）2004，JPO

2. 发明专利

JP2005043121A Instrument calibration support system 有权
标题翻译：仪器校准支持系统
公开(公告)号：JP2005043121A
公开(公告)日：2005-02-17
申请号：JP2003201058
申请日：2003-07-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KUSUMI HISAHIRO , OGA KOJI , FUKUDA MITSUKO , UTENA SHUNSUKE , MAEDA AKIHIKO
IPC分类号： G01D18/00 , G01D21/00
摘要： PROBLEM TO BE SOLVED: To provide an instrument calibration support system suitable for supporting the calibration of instruments of which the periods of calibration should be secured and supporting the calibration of the instruments even when past calibration data is absent as in a newly constructed plant or in the case that instruments have been replaced.
SOLUTION: The instrument calibration support system for presenting the calibration periods of the instruments by integrating both the predicted result of the calibration periods through the sue of calibration data on the instruments and the results of draft detection on line is provided with an instrument calibration history database 1 storing the calibration data, an instrument calibration data analysis part 2 for predicting the calibration periods of the instruments on the basis of the calibration data, a process value storage database 4 having a means for acquiring on line and accumulating process values measured by the instruments; an instrument drift detection part 5 for creating models on the basis of the process values and detecting instruments drifts on line, an integral determination part 3 for integrating both the results of the instrument calibration data analysis part and the results of the instrument drift detection part, and an output display part 8 for displaying the results of the integral determination part.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种仪器校准支持系统，适用于支持校准周期的仪器的校准，并支持仪器的校准，即使过去的校准数据不存在，如新构建的工厂或仪器已被更换的情况。
解决方案：仪器校准时间的仪器校准支持系统通过将校准周期的预测结果与仪器上校准数据的检测结果和线路上检测到的检测结果进行整合，提供仪器存储校准数据的校准历史数据库1，用于基于校准数据预测仪器的校准周期的仪器校准数据分析部件2，具有用于在线获取和累积测量的过程值的装置的过程值存储数据库4 通过仪器; 用于根据过程值和检测仪器漂移在线产生模型的仪器漂移检测部分5，用于将仪器校准数据分析部分的结果与仪器漂移检测部分的结果相结合的积分确定部分3，以及用于显示积分确定部分的结果的输出显示部分8。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2501178B2 失效
公开(公告)号：JP2501178B2
公开(公告)日：1996-05-29
申请号：JP678194
申请日：1994-01-26
申请人： HITACHI LTD
发明人： ARITA SETSUO , UTENA SHUNSUKE , MURATA FUMIO , NOGUCHI SEKIKEN , IZUMI SHIGERU , SUZUKI SATORU , OOKIDO FUMYASU
IPC分类号： G01D21/00 , G05B9/03 , G05B23/02 , G21C17/00 , G21D3/04

4. 发明专利

JPH07160310A CONTROLLER 失效
公开(公告)号：JPH07160310A
公开(公告)日：1995-06-23
申请号：JP34054293
申请日：1993-12-08
申请人： HITACHI LTD
发明人： YOKOTA TAKESHI , ARITA SETSUO , SATO HIDEYUKI , ISHII KAZUHIKO , HASHIMOTO SHIGEO , FUJIHIRA KAZUSHIGE , UTENA SHUNSUKE
IPC分类号： G21D3/00 , G05B17/02 , G06F3/033 , G06F3/038 , G06F3/048
摘要： PURPOSE:To change the shape, place, interface, etc., of the controller as a user demands and provide a controller for a large-scale device in a small space by providing a virtual control board generating device and a control information management device and controlling an object through a virtual control board. CONSTITUTION:This controller is equipped with the input/output interface 1, the virtual control board generating device 2, the control information management device 3, a plant information extraction device 4, and an equipment operation information output device 5 and further equipped with a control means management device 6, a virtual model operation device 7 for a controlled system itself, an information communication device 8 for other operators, and a robot 9. The virtual control board generating device 2 generates the virtual control board as a virtual space offering device. The control information management device 3 outputs a control signal based upon the operation signal of the virtual control board. Then, a control signal is generated by directly operating the virtual model for the controlled system itself, the object is controlled through the virtual control board, and the object is operated by the virtual model for the controlled system itself.

5. 发明专利

JP2001004790A WATER LEVEL CONTROLLER OF STEAM GENERATING PLANT 失效
公开(公告)号：JP2001004790A
公开(公告)日：2001-01-12
申请号：JP17211699
申请日：1999-06-18
申请人： HITACHI LTD
发明人： MIZUKI FUMIO , UTENA SHUNSUKE
IPC分类号： G21D3/04 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To continue safe operation by avoiding main turbine trip and reactor scram due to large water level rise in the case of trip of internal pump and suppressing water level rise. SOLUTION: In a steam generating plant having internal pumps as recirculation pump of reactor, provided with a supply water controller operating supply water flowrate control signal S5 from a reactor water level signal S1, a main steam flowrate signal S2, a supply water control signal S3 and a reactor water level set value S4 and controlling supply water flowrate to the reactor, a correction signal producing means 26 provided with a primary delay circuit produces a correction signal for reducing supply water flowrate based on the deviation of core flowrate signal 21 and the output signal of the primary delay circuit when an internal pump tripped S11. It is added to the supply water flowrate signal S5 to be a signal S7 which is given to controllers 24 and 25 of the supply water flowrate and the flowrate is reduced prior to the water level rise in the reactor.

6. 发明专利

JPH11125696A REACTOR PROTECTION DEVICE 失效
公开(公告)号：JPH11125696A
公开(公告)日：1999-05-11
申请号：JP24468698
申请日：1998-08-31
申请人： HITACHI LTD
发明人： ARITA SETSUO , UTENA SHUNSUKE , ITO TETSUO
IPC分类号： G21C7/36 , G21C17/00 , G21D3/04
摘要： PROBLEM TO BE SOLVED: To enable shortening response time even in the case a signal processor s constituted of a microprocessor, by providing a drive means constituted of semiconductor element for scramming the reactor based on a scram signal. SOLUTION: A drive means 6 is constituted of semiconductor elements. Signal processing is performed as follows, for example. The signals of a switch group 14A placed in the central control room side are taken in a transmission circuit 12A and these signals are multiplexed to transmit to the reception circuit 11A in the plant site side. The output signal of the reception circuit 11A is given to switching circuits 13A11 to 13Ai1 and 13Ai2 provided for functioning each of scram electromagnetic valves VA1 to VAi . That is, the reception circuit 11A detects a command to quickly insert a certain control rods among the received transmission signals and drives the corresponding switching circuits 13A11 , 13A12 to 13Ai1 and 13Ai2 . When the generation of sign error is detected with the reception circuit 11A by providing the reception circuit 11A with a sign error checking function, a resending request signal is transmitted to the transmission circuit 12A and a transmitting repetition means in multiplex communicator is provided.

7. 发明专利

JPH10282288A METHOD AND DEVICE FOR MEASURING REACTOR OUTPUT 失效
公开(公告)号：JPH10282288A
公开(公告)日：1998-10-23
申请号：JP8787297
申请日：1997-04-07
申请人： HITACHI LTD
发明人： ARITA SETSUO , HASEGAWA MAKOTO , ISHII KAZUHIKO , HIRAYAMA TOSHIYUKI , UTENA SHUNSUKE , FUKAZAWA YUKIHISA , MIYAKE MASAO , YAMAZAWA YUJI
IPC分类号： G21C17/108 , G21C17/10
摘要： PROBLEM TO BE SOLVED: To keep the accuracy of sensitivity calibration of neutron detector or of reactor output measurement even if a gamma-ray thermometer fails. SOLUTION: The output signal of a gamma-ray thermometer 4 is compared with a preset judgment value so as to judge whether or not thermometer 4 fails, and a neutron detetcor 5 to be calibrated that is calibrated on the basis of the output signal of the gamma-ray thermometer 4 that is judged defective by the judgment is excluded, and then the reactor output is measured on the basis of the output signal of a neutron detector 5 to be calibrated by a normal gamma-ray thermometer 4, thereby keeping the accuracy of reactor output measurement. On the other hand, the distribution of axial direction output is measured on the basis of the output signal of normal gamma-ray thermometer 4 excluding that of gamma-ray thermometer 4 which is judged defective, or simulation computation for obtaining the distribution of axial direction output according to thermal balance data is corrected so as to keep the measurement accuracy of axial direction output distribution.

8. 发明专利

JPS63235897A NUCLEAR-REACTOR PROTECTIVE DEVICE 失效
公开(公告)号：JPS63235897A
公开(公告)日：1988-09-30
申请号：JP6887587
申请日：1987-03-25
申请人： HITACHI LTD
发明人： UTENA SHUNSUKE , NAGATA YOSHIFUMI , YUMITATE TADAHIRO , SHIMODA ICHIRO
IPC分类号： G21C7/00 , G21C17/00

9. 发明专利

JP2988476B2 REACTOR PROTECTION DEVICE 失效
公开(公告)号：JP2988476B2
公开(公告)日：1999-12-13
申请号：JP24468698
申请日：1998-08-31
申请人： HITACHI LTD
发明人： ARITA SETSUO , UTENA SHUNSUKE , ITO TETSUO
IPC分类号： G21C7/36 , G21C17/00 , G21D3/04

10. 发明专利

JPH11125695A REACTOR PROTECTION DEVICE 失效
公开(公告)号：JPH11125695A
公开(公告)日：1999-05-11
申请号：JP24468598
申请日：1998-08-31
申请人： HITACHI LTD
发明人： ARITA SETSUO , UTENA SHUNSUKE , ITO TETSUO
IPC分类号： G21C7/36 , G21C17/00 , G21D3/04
摘要： PROBLEM TO BE SOLVED: To scram a reactor in a specified time, reduce cabling cost and improve safety and load factor of the reactor, by transmitting signal between the plant site side and the central control room side with two transmission means of multiplex transmission means and individual transmission means. SOLUTION: A device is constituted so that the output signal of analog sensors SAIa to SAKa and digital sensors SAId to SAjd are transmitted in multiplex communication and the trip signal (a) outputted from a logic circuit 10A in a signal processor 4A is individually transmitted. As the results, the response time from the time the digital sensors SAId to SAjd outputs the signal to the time a drive circuit 6A functions can be made substantrally to 40 ms, which satisfies the specified time 50 ms. That is, when the reactor becomes a state of total insertion of control rods, the response time from the time the sensors output signals to the time the drive circuit 6A as a controlled object functions is operated within the specified time of 50 ms more specifically 40 ms. By this, the control rods can be quickly inserted in the core in a short time.

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