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1. 发明专利

DE69110810T2 未知
公开(公告)号：DE69110810T2
公开(公告)日：1995-12-07
申请号：DE69110810
申请日：1991-09-16
申请人： HITACHI LTD
发明人： FUJII TADASHI , KATAOKA YOSHIYUKI , FUKUI TOHRU , HIDAKA MASATAKA , NAKAO TOSHITSUGU , HATAMIYA SHIGEO , SUZUKI HIROAKI , NAITOH MASANORI , SUMIDA ISAO , TOMINAGA KENJI , NIINO TSUYOSHI
IPC分类号： G21C9/004 , G21C9/00 , G21C9/008 , G21C13/00 , G21C15/18 , G21D1/00
摘要： There is disclosed a nuclear reactor installation. An accumulator-type emergency core cooling system, a gravity-driven core cooling system and an equalizing system for submerging a reactor core are provided within a primary containment vessel containing a reactor pressure vessel (2) in which the reactor core (1) is disposed. These cooling systems are automatically operated sequentially in accordance with the pressure in the reactor pressure vessel without the need for any particular powered source. The primary containment vessel (10) is made of steel, and the interior of this containment vessel is divided into a space containing the reactor pressure vessel (2) and a space containing an operation floor (30) in such a manner that the two spaces are isolated from each other. An opening device (31) is provided between the two spaces so as to communicate the two spaces with each other in the event of an accident, the upper portion of the primary containment vessel being air-cooled while the lower portion of this containment vessel being water-cooled.

2. 发明专利

DE3765133D1 未知
公开(公告)号：DE3765133D1
公开(公告)日：1990-10-31
申请号：DE3765133
申请日：1987-02-25
申请人： HITACHI LTD
发明人： SUZUKI HIROAKI , MURASE MICHIO , HATAMIYA SHIGEO , NAITOH MASANORI , TOMINAGA KENJI
IPC分类号： G21C15/18
摘要： An emergency reactor core cooling structure comprises a flow passage (22) provided on an upper core plate (25) so as to extend downward therefrom into the core (9). The flow passage has an orifice member (27) at a lower portion thereof. The orifice member (27) has such a port (23) that the cross-sectional area of the flow passage is made minimal at the orifice member (27). The flow passage (22) causes the cooling water held on the upper plate (25) by vapor flowing up on an accident to flow down therethrough, whereby the core is cooled rapidly.

3. 发明专利

DE3774307D1 未知
公开(公告)号：DE3774307D1
公开(公告)日：1991-12-12
申请号：DE3774307
申请日：1987-03-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMANARI SHOZO , HORIUCHI TETSUO , TOMINAGA KENJI , GOTO HIROSHI , MIURA SATOSHI
IPC分类号： G21C15/18 , G21C9/00 , G21D3/04
摘要： Two systems of low-pressure core spray apparatuses have coolers (20A, 20B), and are adapted to supply cooling water to a core spray header (21) provided in a core-surrounding cylindrical shroud in a reactor pressure vessel (7). Two systems of high-pressure core flooding apparatuses (14A, 14B) and one system of high-pressure coolant injection apparatus (27) are adapted to supply the cooling water to a region formed between the shroud (8) and reactor pressure vessel (7). The elevations of the openings, which are in the reactor pressure vessel (7), of the high-pressure core flooding apparatus (14A, 14B) and high-pressure coolant injection apparatus (27) are higher than that of the core spray header (21). A pipe (26A, 26B) for returning the cooling water in the reactor pressure vessel to the above-mentioned coolers is connected to either the portion of the interior of the reactor pressure vessel which is below the core or the portion of the interior of the reactor pressure vessel which is between the walls of the shroud and reactor pressure vessel. The above-mentioned pipe (26A, 26B) is provided therein with a valve (33A, 34A, 33B, 34B) which is adapted to be closed when the nuclear reactor stops being operated in an emergency in which the breakage of a pipe occurs, and to be opened when the nuclear reactor is stopped under normal conditions.

4. 发明专利

DE69110810D1 未知
公开(公告)号：DE69110810D1
公开(公告)日：1995-08-03
申请号：DE69110810
申请日：1991-09-16
申请人： HITACHI LTD
发明人： FUJII TADASHI , KATAOKA YOSHIYUKI , FUKUI TOHRU , HIDAKA MASATAKA , NAKAO TOSHITSUGU , HATAMIYA SHIGEO , SUZUKI HIROAKI , NAITOH MASANORI , SUMIDA ISAO , TOMINAGA KENJI , NIINO TSUYOSHI
IPC分类号： G21C9/004 , G21C9/00 , G21C9/008 , G21C13/00 , G21C15/18 , G21D1/00
摘要： There is disclosed a nuclear reactor installation. An accumulator-type emergency core cooling system, a gravity-driven core cooling system and an equalizing system for submerging a reactor core are provided within a primary containment vessel containing a reactor pressure vessel (2) in which the reactor core (1) is disposed. These cooling systems are automatically operated sequentially in accordance with the pressure in the reactor pressure vessel without the need for any particular powered source. The primary containment vessel (10) is made of steel, and the interior of this containment vessel is divided into a space containing the reactor pressure vessel (2) and a space containing an operation floor (30) in such a manner that the two spaces are isolated from each other. An opening device (31) is provided between the two spaces so as to communicate the two spaces with each other in the event of an accident, the upper portion of the primary containment vessel being air-cooled while the lower portion of this containment vessel being water-cooled.

5. 发明专利

JP2001325582A LEARNING AND PREDICTING DEVICE FOR TIME-SERIES DATA 失效
公开(公告)号：JP2001325582A
公开(公告)日：2001-11-22
申请号：JP2000149822
申请日：2000-05-17
申请人： CHUGOKU ELECTRIC POWER , HITACHI LTD
发明人： SHIROMARU ISAO , YAMADA ISAO , TOMINAGA KENJI , OGA KOJI , MARUYAMA BUICHI
IPC分类号： G06N3/02 , G05B13/02 , G06F19/00 , G06N3/00 , G06N3/08 , G06Q10/04
摘要： PROBLEM TO BE SOLVED: To provide a device which can reduce a prediction error accompanying standardization and precisely predict the future value of time-series data by selecting a learning and prediction system for a neural net according to the variation width of tutor data regarding prediction parameters. SOLUTION: As for time-series data gathered by a data gathering part 30 from a plant 10, a variation rate computation part 50 computes variation rate data. A learning and prediction system selection part 60 compares the variation widths of time-series data of prediction parameters and the variation rate data to select a system for learning the neural net with the data having small variation width. On the basis of the selected learning system, a neural net learning part 70 generates a prediction model and stores it in a prediction model storage part 90. On the basis of the prediction system selected by the selection part 60, a neural net prediction part 80 inputs the prediction model from the prediction model storage part 90 and performs prediction. A man-machine part 20 displays the prediction result.

6. 发明专利

JPH11212947A ESTIMATING METHOD AND DEVICE FOR TIME SERIES DATA 失效
公开(公告)号：JPH11212947A
公开(公告)日：1999-08-06
申请号：JP1228498
申请日：1998-01-26
申请人： CHUGOKU ELECTRIC POWER , HITACHI LTD
发明人： SHIROMARU ISAO , SEKI HIROSHI , OGA KOJI , YUJI HIROYUKI , TOMINAGA KENJI , HAYASHI YOSHIHARU , MARUYAMA BUICHI
IPC分类号： G21D3/00 , G06F15/18 , G06F17/00 , G06F19/00 , G06N3/00 , G06Q10/04 , G06Q50/00 , G06Q50/04
摘要： PROBLEM TO BE SOLVED: To estimate with high accuracy the further value of time series data which include various frequency components and are complicatedly changed. SOLUTION: Time series data which include various frequency components and are complicatedly changed are decomposed into the plural time series data by a time series data decomposing device 70. The estimating devices 101 to 103 estimate the further value for every plural decomposed time series data and then decide the further value of the time series data including various frequency components and being complicatedly changed based on the plural estimated further values.

7. 发明专利

JPH10142382A REACTOR CORE PERFORMANCE CALCULATOR 失效
公开(公告)号：JPH10142382A
公开(公告)日：1998-05-29
申请号：JP29878096
申请日：1996-11-11
申请人： HITACHI LTD
发明人： TOMINAGA KENJI , SANO HIROKI , OGA KOJI
IPC分类号： G21C17/00
摘要： PROBLEM TO BE SOLVED: To speed up core performance calculation by improving convergence of nuclear thermohydraulic calculation in total core performance calculation. SOLUTION: Provided are a partial core region specifying means 8 specifying partial core region for locally executing core performance calculation for the operation of each control rod after a total core performance calculation time, a core performance calculation means 9 executing core performance calculation on the specified partial core region based on the nuclear thermohydraulic calculation model, and a conserving means 10 for power distribution and nuclear constants renewing and conserving the initial value of power distribution and nuclear constants of the partial core region based on the power distribution and void distribution obtained with the core performance calculation means 9. By this, the initial value of power distribution and nuclear constants necessary for executing the total core performance calculation can be prepared with values close to the core state at the moment when the power distribution and the void distribution match.

8. 发明专利

JPH0934534A PLANT SIMULATION SYSTEM 失效
公开(公告)号：JPH0934534A
公开(公告)日：1997-02-07
申请号：JP20516295
申请日：1995-07-19
申请人： HITACHI LTD
发明人： ARITA SETSUO , TOMINAGA KENJI , SANO HIROKI , ISHII KAZUHIKO
IPC分类号： G09B9/00 , G05B23/02
摘要： PROBLEM TO BE SOLVED: To provide a plant simulation system which improves its working efficiency by shortening the time needed for verification of an object controller. SOLUTION: When a controller 11 is simulated by a single verification device 1, the switch means 8 and 10 are closed and opened respectively. Then the controller 11 is separated from the device 1, and a program start adjustment means 3 functions to fast simulate a controller simulation program 7 and a plant simulation program 5 in a short time smaller than the real time. Thus the reference response characteristic is acquired in a short time for verification of the controller 1. When the controller 11 is verified, the means 8 and 10 are opened and closed respectively. Then the means 3 starts the program 5 in response to the computing cycle of the controller 11 to verify and test the controller 11 in real time. The result of this verification/test is compared with the reference response characteristic acquired previously, so that the quality of the controller 11 is verified.

9. 发明专利

JP2521256B2 失效
公开(公告)号：JP2521256B2
公开(公告)日：1996-08-07
申请号：JP4642686
申请日：1986-03-05
申请人： HITACHI LTD
发明人： TOMINAGA KENJI , HATAMYA SHIGEO , MORYA KIMIAKI , NAKAYAMA TAKASHI , YAMANARI SHOZO
IPC分类号： G21C7/26 , G21C15/16 , G21D3/08

10. 发明专利

JPH07181279A FLOATING TYPE NUCLEAR POWER PLANT 失效
公开(公告)号：JPH07181279A
公开(公告)日：1995-07-21
申请号：JP32660593
申请日：1993-12-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TATENO SEIYA , TOMINAGA KENJI , IWATA YASUTAKA , OCHIAI KANEHIRO , HIRAKO SHIZUKA
IPC分类号： G21C9/004 , G21C1/00 , G21C15/18
摘要： PURPOSE:To improve the reliability and economy of a plant and rationalize equipment. CONSTITUTION:In a floating type nuclear power plant placed by floating on water and equipped with a bulk room 1 arranged in reactor building 4, an outer pool 10 placed in the gap between a reactor containment and a reactor building 4 with a wall of steel reactor containment 2 as a partition wall in the periphery of a reactor pressure suppression chamber having a pressure suppression pool 10, connection pipes 14, 15 equipped between the outer pool 10 and the water, and a space volume in the bulk room 1 adjusted so that its water level is controlled to be the same as that in the pressure suppression pool water.

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