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1. 发明专利

JP2001183487A WATER FILLING FACILITIES FOR REACTOR JESSEL 失效
公开(公告)号：JP2001183487A
公开(公告)日：2001-07-06
申请号：JP36798699
申请日：1999-12-24
申请人： HITACHI LTD , HITACHI ENG CO LTD , IBARAKI HITACHI JOHO SERVICE K
发明人： SUZUKI HIROSHI , ODA SHINGO , HISAMOCHI KOUHEI , HASHIMOTO KOJI , SHISHIDO HIROKATSU
IPC分类号： G21C9/00 , G21C9/008
摘要： PROBLEM TO BE SOLVED: To provide water filling facilities for a reactor versel enabling effective use of a cooling water source and the supply of a cooling water in a short time, without requiring an extra amount of water if by chance a large amount of cooling water is filled in the reactor vessel and the reactor container requires external cooling. SOLUTION: A forcibly closing function is provided for a vacuum bracker 29 provided in a vent pipe 28. Electrically stopped valves 19a, 19b are provided in an condensate storage tank normal/abnormal communication pipe 18 communicating between a condensate storage tank abnormal service pipe 20 and a condensate storage tank normal service pipe 20. When cooling water is filled in a dry well 26 for the reactor container 25, the electrically stopped valves 19a, 19b are opened and the vacuum breaker 29 is closed forcibly.

2. 发明专利

JP2004257300A EMERGENCY DIESEL POWER GENERATING FACILITY 审中-公开
公开(公告)号：JP2004257300A
公开(公告)日：2004-09-16
申请号：JP2003048441
申请日：2003-02-26
申请人： HITACHI LTD , HITACHI ENG CO LTD , IBARAKI HITACHI JOHO SERVICE K
发明人： HASHIMOTO KOJI , ODA SHINGO , SUZUKI HIROSHI , HISAMOCHI KOUHEI , UENO TAKASHI
IPC分类号： G21D3/04 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To allow extension of power generating period by securing fuel supply for an emergency diesel power generating facility. SOLUTION: The emergency diesel power generating facility is equipped with three units of emergency diesel power generators 1, 2, 3, and fuel tanks 4, 5, 6 connected to supply fuel to the emergency diesel power generators 1, 2, 3 respectively. The emergency diesel power generating facility is also equipped with piping connected to circulate fuel among respective fuel tanks 4, 5, 6, and valves 12a-12f mounted in the piping to interrupt a fuel flow in the piping. Fuel in the fuel tank of the emergency diesel power generating facility losing functions at an earthquake, is transferred to the he fuel tank of the emergency diesel power generating facility maintaining functions, whereby retention period of functions can be extended. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2004227298A Method for operating plant, and operation apparatus thereof 有权
公开(公告)号：JP2004227298A
公开(公告)日：2004-08-12
申请号：JP2003014471
申请日：2003-01-23
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： KIMURA RYUSUKE , HISAMOCHI KOUHEI , ODA SHINGO , SATO KENICHI
IPC分类号： G05B9/02
摘要： PROBLEM TO BE SOLVED: To provide a plant operating method by rationalizing a plant starting procedure, while keeping safety in a plant, and suppressing losses in a plant operation stoppage to a minimum, and to provide its apparatus. SOLUTION: The apparatus includes an apparatus state evaluating part 3 for fetching signals from an apparatus monitor part 1 and a seismometer 2, and evaluating the state of each plant constituting apparatus; a plant risk evaluating part 6 and a starting failure risk evaluating part 7 for acquiring an importance degree evaluation result from the evaluation and information intrinsic to the plant, which is previously stored in a plant database 4 and an apparatus database 5; a patrol priority degree evaluating part 8 for deciding the priority order of repair corresponding to the importance degree of each plant constitution apparatus, through the use of the importance degree evaluation result of each apparatus; a plant stop starting failure risk economic loss evaluating part 11 for calculating the loss predicted value concerning plant start up, based on the priority order; and a plant start priority degree determining part 12 for adjusting the start up timing, so as to allow the loss predicted value to be a minimum which is not larger than a prescribed value. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2000019285A REACTOR HEAT REMOVAL SYSTEM 失效
公开(公告)号：JP2000019285A
公开(公告)日：2000-01-21
申请号：JP19002098
申请日：1998-07-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HISAMOCHI KOUHEI , MIURA SATOSHI
IPC分类号： G21C15/18
摘要： PROBLEM TO BE SOLVED: To provide a reactor heat removal system with good aseismic performance and obtainable decay heat removable without continuous operation of an auxiliary component cooling system and decay heat removal pump. SOLUTION: A heat exchanger 6 is placed at a position higher than a suppression pool water surface 5a and lines 31, 33 and 34 from a reactor containment 2 to the heat exchanger primary side uppers part are provided. A circulation loop is formed out of these lines, lines from the heat exchanger 6 primary side lower part through a turbine-driven pump 7a to the reactor pressure vessel 1 and the line 37 leading to the suppression pool 5b. Furthermore, an air discharge line with remote valve 18 releasing to the air and a supply line 36 to the secondary side of the heat exchanger 6 are provided to the secondary side of the heat exchanger 6 in the constitution.

5. 发明专利

JPH10142379A RESIDUAL HEAT REMOVAL SYSTEM IN REACTOR FACILITY 失效
公开(公告)号：JPH10142379A
公开(公告)日：1998-05-29
申请号：JP29513596
申请日：1996-11-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MIURA SATOSHI , ODA SHINGO , HASHIMOTO KOJI , SUZUKI HIROSHI , SAITO MINORU , HISAMOCHI KOUHEI
IPC分类号： G21C15/18
摘要： PROBLEM TO BE SOLVED: To add a new function capable of removing decay heat regardless of operation of auxiliary cooling system or continuous operation of a pump in addition to the conventional function of residual heat removal system using a residual heat removal system pump. SOLUTION: A circulation loop is formed with a connection line from the steam phase part of reactor pressure vessel 2 to the upper part of primary side of a heat exchanger 6 arranged at high elevation and a connection line from the lower part of the primary side of the heat exchanger 6 to the liquid phase part of the reactor pressure vessel 2, and to the secondary side of the heat exchanger 6, an air discharge line and a water supply line are provided. By this, safety of plant is drastically improved as heat discharge in the air becomes possible in addition to the conventional discharge in sea water without changing much the system configuration of the conventional residual heat removal system.

6. 发明专利

JP2008020234A Emergency core cooling system 有权
标题翻译：应急核心冷却系统
公开(公告)号：JP2008020234A
公开(公告)日：2008-01-31
申请号：JP2006190226
申请日：2006-07-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKEDA SATOSHI , ODA SHINGO , HISAMOCHI KOUHEI , KIMURA RYUSUKE
IPC分类号： G21C15/18
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an emergency core cooling system which makes it possible to recover the liquid level of a coolant in a reactor more rapidly after the occurrence of a loss-of-coolant accident (LOCA). SOLUTION: In a core spray system 44, a cooling water pool 12 and a reactor 2 are connected by a spray pipe 4 equipped with an electrically-driven isolation valve 17a and a blasting valve 8. In a system 45 for supplying pressure suppression pool water, a pressure suppression pool 13 and the reactor 2 are connected by a spray pipe 5 equipped with an electrically-driven isolation valve 17b and a blasting valve 9. If a LOCA happens, the blasting valves 8 and 9 will open one by one and cooling water will be poured into the reactor 2 sequentially by gravity drop from the cooling water pool 12 and the pressure suppression pool 13. When a measured value of a water level gauge 21 placed in the cooling water pool 12 falls below the set point, a controller 23 closes the electrically-driven isolation valve 17a entirely. When a measured value of the water level gauge 22 placed in the pressure suppression pool 13 falls below a set point, a controller 24 closes the electrically-driven isolation valve 17b entirely. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供应急芯冷却系统，其使得可以在冷却剂失效事故（LOCA）发生之后更快速地恢复反应堆中的冷却剂的液面。解决方案：在核心喷雾系统44中，冷却水池12和反应器2通过配备有电动隔离阀17a和喷射阀8的喷射管4连接。在用于提供压力的系统45 抑制池水，压力抑制池13和反应器2通过配备有电动隔离阀17b和喷射阀9的喷射管5连接。如果发生LOCA，则爆破阀8和9将通过一个冷却水将依次通过冷却水池12和压力抑制池13的重力下落而倒入反应器2中。当放置在冷却水池12中的水位计21的测量值低于设定点控制器23完全关闭电动隔离阀17a。当放置在压力抑制池13中的水位计22的测量值低于设定点时，控制器24完全闭合电动隔离阀17b。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JPH09318783A COOLING SYSTEM FOR REACTOR PLANT 失效
公开(公告)号：JPH09318783A
公开(公告)日：1997-12-12
申请号：JP13161096
申请日：1996-05-27
申请人： HITACHI LTD
发明人： FUJII TADASHI , KATAOKA YOSHIYUKI , SATO KENICHI , HISAMOCHI KOUHEI
IPC分类号： G21C9/004 , G21C13/00 , G21C15/18
摘要： PROBLEM TO BE SOLVED: To cool a sector containment quickly and efficiently from outside during occurrence of accidents by forming an outside pool in contact with the reactor containment by water injection in a short time and cooling the containment from outside. SOLUTION: A pipe 31 branched from an injection pipe 21 sends a part of cooling water in the pipe 21 by opening the valve 32 into the gap between the reactor building 9 and the containment 5 outside a pressure suppression pool 4. A pipe 32 sends cooling water in a condensate storage tang to a spent fuel pool by opening a valve 35. A pipe 33 sends the overflow water of the fuel pool 10 via a gap surge tank 16 to a spray header 42 outside the containment 5 by opening a valve 36. At the time of accident occurrence, the water level in the suppression pool 4 rises due to water injection from the pipe 21 to a drywell 2 and like as previously and the temperature also rises because of latent heat of inflow steam. However, the outside pool 30 is formed outside the suppression pool 4 in the gap between the building 9 and the containment 5 owing to the water injection from the pipe 31, and therefore, the temperature difference between the pools 4 and 30 becomes large and the containment 5 can be cooled by natural heat radiation from the heat conduction surface of the wall itself of the containment 5.

8. 发明专利

JPH10239487A PLANT OPERATION SUPPORT SYSTEM 失效
公开(公告)号：JPH10239487A
公开(公告)日：1998-09-11
申请号：JP3880997
申请日：1997-02-24
申请人： HITACHI LTD
发明人： HISAMOCHI KOUHEI , NAGATA YOSHIFUMI
IPC分类号： G21D3/00 , G05B23/02
摘要： PROBLEM TO BE SOLVED: To support the determination of abnormal condition by evaluating the reliability of process signal from the range of signal at the time of abnormality and setting of reliability for every condition of abnormality, and displaying the process signal, reliability data and plant operation setting value. SOLUTION: A condition monitoring unit 3 reserves a process signal input to a signal input unit 2 and surrounding ambient data such as temp. pressure, and humidity. A reliability processor 6 determines the degree of reliability of each process signal according to the conditions of abnormality, based on the process signal from the unit 3, the ambient data a reliability setting rule. A plant operation setting value processor 8 compares the plant operation setting value from a plant operation setting value information storing unit 7 with the process signal from the processor 6 and determines the reaching condition of the setting value, then displays it at an output processor 9. The processor 9 displays the process signal from the processor 6 and the reliability data, and the relevant data such as plant operation setting value. Accordingly, an operator can judge the conditions surely.

9. 发明专利

JPH09119995A REACTOR PLANT 失效
公开(公告)号：JPH09119995A
公开(公告)日：1997-05-06
申请号：JP27861295
申请日：1995-10-26
申请人： HITACHI LTD
发明人： HISAMOCHI KOUHEI , SATO KENICHI , MATSUMOTO MASAKI
IPC分类号： G21C9/00 , G21C13/00 , G21C13/024
摘要： PROBLEM TO BE SOLVED: To cool a reactor pressure container when an emergency reactor cooling system does not operate when a cooling material is lost by accident. SOLUTION: A spray pipe 15 is provided in a skirt 4 of a reactor pressure container 1. A connecting port 18 is provided at one portion of the skirt 4 and a lid 19 for switching the connecting port 18 is mounted to the skirt 4 so that it can be rotated. A partial coolant flow jetted from the spray pipe 15 pushes the lid 19 toward the outside. Other coolants hit against the lower mirror part of the reactor pressure container 1 to cool it, thus cooling the lower mirror part of the reactor pressure container 1 which tends to get hot at the time when an emergency reactor cooling system abnormally does not operate due to the accidental loss of a cooling material. At this time, the lid 19 opens so that generated steam passes through the connecting port 18 and is discharged outside the skirt 4, thus improving the efficiency for removing heat at the lower mirror part.

10. 发明专利

JP2004219342A Safety facility for nuclear reactor 有权
标题翻译：核反应堆安全设施
公开(公告)号：JP2004219342A
公开(公告)日：2004-08-05
申请号：JP2003008966
申请日：2003-01-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HISAMOCHI KOUHEI , ODA SHINGO , SATO KENICHI , SUZUKI HIROSHI , MATSUURA MASAYOSHI
IPC分类号： G21C9/00 , G21C13/00 , G21C15/18 , G21D3/04
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To obtain high reliability in response to common-cause failures and the like while decreasing the physical quantities of facilities in regard to safety facilities for a nuclear power plant. SOLUTION: These safety facilities for a reactor has a reactor pressure vessel 2 contained in a reactor containment vessel 1, main steam pipes 25 and water-supply pipes 26 connected to the reactor pressure vessel 2, water-pouring systems for pouring water into the reactor pressure vessel 2 separately and independently in divisions of them and power source facilities for feeding the equipment in the water-pouring systems separately and independently in each of the divisions. The power source facilities are used as power sources for feeding motor-operated valves 7a, 7b, 7c, 8a, 8b and 8c included in an isolation condenser system where the steam received in a condenser 6 from the main steam pipes 25 by way of a pipe 9 is condensed by the condenser 6 and the condensed water is returned to water-supply pipes 26 through the pipe 63 and the pipes 9 and 63. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了在减少关于核电站的安全设施的设施的物理量的同时，在常见原因故障等方面获得高可靠性。解决方案：反应堆的这些安全设施包括反应堆容纳容器1中的反应堆压力容器2，连接到反应堆压力容器2的主蒸汽管25和供水管26，用于浇注水的浇注系统分别独立地进入反应堆压力容器2，并分别独立地进入反应堆压力容器2和用于在每个分区中单独且独立地将设备供入浇注系统的动力源设施。电源设备被用作用于馈送包括在隔离冷凝器系统中的电动阀7a，7b，7c，8a，8b和8c的电源，其中蒸汽从主蒸汽管25接收在冷凝器6中，通过管9被冷凝器6冷凝，冷凝水通过管63和管9和63返回到供水管26。版权所有（C）2004，JPO＆NCIPI

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