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1. 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

2. 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

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