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1. 发明专利

JPS6258196A PURIFIER FOR COOLANT OF NUCLEAR REACTOR 失效
公开(公告)号：JPS6258196A
公开(公告)日：1987-03-13
申请号：JP19765285
申请日：1985-09-09
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： YAMANARI SHOZO , MITADERA MASASHI , TOMINAGA KENJI
IPC分类号： G21C19/307 , G21C19/30

2. 发明专利

JPS6141944A Gas sampling system 失效
标题翻译：气体采样系统
公开(公告)号：JPS6141944A
公开(公告)日：1986-02-28
申请号：JP16462184
申请日：1984-08-06
申请人： Hitachi Ltd , Hitachi Nuclear Eng Co Ltd
发明人： MORIYA KIMIAKI , NOJI HISASHI , TOTSUKA FUMIO , YAMANARI SHOZO , MITADERA MASASHI
IPC分类号： G21C17/00 , G01N1/00 , G01N1/22 , G21C17/028
CPC分类号： G21C17/028 , G01N1/24
摘要： PURPOSE:To improve measurement precision and reduce operation cost by providing a flow meter at the sample introduction part of a sampling pipe and nearby a gas analyzer. CONSTITUTION:Sample gas in a dry well 12 is sucked by a sampling pump 24 and guided to the sampling pipe 14, and then dehumidified by a cooler 16; almost all of the dehumidified sampling gas SG is guided to return piping 22 through a by-pass pipe 72 and the remainder enters the gas analyzer 20. An H2 concn. and O2 concn. of the SG entering the analyzer 20 are measured by a heat conduction type hydrogen gas detector and a magnetic wind type oxygen detector and the gas is admitted into the piping. The SG in the piping 22 is returned to the dry well 12 through the pump 24. Vapor condensed by the cooler 16, on the other hand, is discharged into a suppression chamber through piping 70. Thus, the H2 concn. and O2 concn. after the analysis 20 are corrected with measured values of a manometer 58, thermometer 60, differential pressure gauge 62, manometer 64, thermometer 66, and differential pressure gauge 68 to detect the H2 concn. and O2 concn. in the dry well 12.
摘要翻译：目的：通过在采样管的样品引入部分和气体分析仪附近提供流量计，提高测量精度并降低运行成本。构成：干井12中的采样气体被采样泵24吸引并被引导到采样管14，然后由冷却器16除湿; 几乎所有的除湿取样气体SG被引导以通过旁通管72返回管道22，其余的进入气体分析器20。和O2浓度进入分析器20的SG由导热型氢气检测器和磁风式氧检测器测量，气体进入管道。管道22中的SG通过泵24返回到干井12.另一方面，由冷却器16冷凝的蒸气通过配管70被排放到抑制室内。和O2浓度在分析20之后用压力计58，温度计60，差压计62，压力计64，温度计66和差压计68的测量值进行校正，以检测H2浓度。和O2浓度在干井12。

3. 发明专利

JPH0576599B2 失效
公开(公告)号：JPH0576599B2
公开(公告)日：1993-10-22
申请号：JP20110584
申请日：1984-09-26
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： TOMINAGA KENJI , MITADERA MASASHI , YAMANARI SHOZO , HORIUCHI TETSUO
IPC分类号： G21F9/02 , G21D3/08 , G21F9/00

4. 发明专利

JPS61173192A CONTAINER FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS61173192A
公开(公告)日：1986-08-04
申请号：JP1477485
申请日：1985-01-28
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： MORIYA KIMIAKI , MITADERA MASASHI , YAMANARI SHOZO
IPC分类号： G21C9/00 , G21C9/004 , G21C13/00

5. 发明专利

JPS6177799A Portable combustible-gas concentration controller 失效
标题翻译：便携式可燃气体浓度控制器
公开(公告)号：JPS6177799A
公开(公告)日：1986-04-21
申请号：JP20110584
申请日：1984-09-26
申请人： Hitachi Ltd , Hitachi Nuclear Eng
发明人： TOMINAGA KENJI , MITADERA MASASHI , YAMANARI SHOZO , HORIUCHI TETSUO
IPC分类号： G21F9/02 , G21D3/08 , G21F9/00
CPC分类号： Y02E30/40

6. 发明专利

JPH10288695A REACTOR CONTAINMENT PROVIDED WITH HYDROGEN GAS COUNTERMEASURE EQUIPMENT 失效
公开(公告)号：JPH10288695A
公开(公告)日：1998-10-27
申请号：JP9557197
申请日：1997-04-14
申请人： HITACHI LTD
发明人： ANDO KOJI , YAMANARI SHOZO
IPC分类号： G21C13/00 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To efficiently mitigate containment internal pressure due to a plenty of hydrogen gas generation in a severe accident with the addition of minimum equipments by placing a catalystic burnable gas concentration controller in the containment and surrounding it with a vessel having a semipermeable membrane through which oxygen gas cannot pass and hydrogen gas can pass. SOLUTION: Hydrogen gas generated excessively in a containment by metal- water reaction, etc., in a pressure vessel 18 during a severe accident passes a break 19, fills the containment 13, passes a semipermeable membrane in the containment 13 and fills the vessel 1 having the semipermeable membrane. For the semipermeable membrane, polytetrafluoroethylene, for example, which let hydrogen pass but does not let oxygen pass, is used. At the beginning of a severe accident, only hydrogen gas is filled in the vessel 1 having a semipermeable membrane. When oxygen gas is injected from an oxygen supplier 3 through an oxygen injection part 4 provided at the lower part of the catalyst 2 inside the vessel 1, oxygen gas passes the catalyst 2 to combine with hydrogen and deposit in the space of the vessel 1.

7. 发明专利

JPH1020084A NUCLEAR POWER PLANT PROVIDED WITH HYDROGEN REMOVING SYSTEM 失效
公开(公告)号：JPH1020084A
公开(公告)日：1998-01-23
申请号：JP17204296
申请日：1996-07-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AIZAWA SHINICHI , YAMANARI SHOZO , OKURA MINORU , KAMITSUMA NOBUAKI
IPC分类号： G21D3/08 , G21F9/02
摘要： PROBLEM TO BE SOLVED: To maintain the soundness of a nuclear reactor containment by installing a catalytic hydrogen removing device inside the nuclear reactor containment and removing hydrogen gas effectively so as to prevent hydrogen explosion. SOLUTION: In a nuclear reactor containment 1 housing a nuclear reactor pressure vessel 2 and a containment spray header 5 in the inside, a plurality of catalytic hydrogen removing devices 11 are arranged close to a wall on the nuclear reactor pressure vessel 2 side and a wall on the nuclear reactor containment 1 outside wall side in the inside of the nuclear reactor housing vessel 1. The plurality of catalytic hydrogen removing devices 11 are arranged uniformly in the horizontal direction and in the circumference direction of the side walls in areas A, A' in each of which upward flow is formed.

8. 发明专利

JPH08297194A HYDROGEN REMOVING SYSTEM 失效
公开(公告)号：JPH08297194A
公开(公告)日：1996-11-12
申请号：JP10220995
申请日：1995-04-26
申请人： HITACHI LTD
发明人： AIZAWA SHINICHI , YAMANARI SHOZO , UENO TAKASHI
IPC分类号： G21C9/00 , G21D3/08 , G21F9/02
摘要： PURPOSE: To improve the hydrogen removing efficiency of a hydrogen removing device reducing the hydrogen gas concentration in a reactor container. CONSTITUTION: A reactor container 1 is provided with a catalyst type hydrogen removing device 11 fed with a gas containing hydrogen and oxygen to recombine hydrogen and oxygen, a blower 18 feeding the atmospheric gas in the reactor container 1 to the catalyst type hydrogen removing device 11, and a pipe 17 guiding part of the cooling water, flowing in a reactor container spray cooling pipe 16 and pressurized when the reactor coolant in a reactor is abnormally decreased, to the blower 18. The pressure of the guided cooling water is used as the driving source of the blower 18.

9. 发明专利

JPH08233344A AUXILIARY DEVICE COOLING FACILITY USING AIR COOLER 失效
公开(公告)号：JPH08233344A
公开(公告)日：1996-09-13
申请号：JP3794095
申请日：1995-02-27
申请人： HITACHI LTD
发明人： MORIYA KENJI , OKURA MINORU , YAMANARI SHOZO , TSUJI AKIO
IPC分类号： F24F11/02 , F24F11/76 , F24F11/053
摘要： PURPOSE: To control a cooling water supplying temperature for an auxiliary device to be cooled within a specified range in the auxiliary cooling facility using an air cooler without being influenced by a variation of surrounding air temperature. CONSTITUTION: This invention relates to an auxiliary device cooling facility using an air cooler for use in cooling an auxiliary device 4 to be cooled in which there are provided a plurality of air cooler fans 3a to 3d which are arranged in parallel to each other and installed one by one for each of air coolers 2a to 2d having cooling water passed therein by circulation pumps 1a, 1b; an air cooler cooling water inlet thermometer 7 and an air cooler cooling outlet thermometer 8. The number of operating fans 3a to 3d for the air cooler is controlled with control parameters of each of the measured temperatures obtained by each of the air cooler cooling water inlet thermometer 7 and the air cooler cooling water outlet thermometer 8 as well as the number of air cooler fans 3a to 3d being operated.

10. 发明专利

JPH06138278A PRESSURE REDUCTION TYPE REACTOR CONTAINER 失效
公开(公告)号：JPH06138278A
公开(公告)日：1994-05-20
申请号：JP29247992
申请日：1992-10-30
申请人： HITACHI LTD
发明人： ANDO KOJI , YAMANARI SHOZO , NAKAYAMA TAKASHI
IPC分类号： G21C9/00 , G21C13/00 , G21C15/18
摘要： PURPOSE:To effectively radiate heat outside a reactor container in the event of a severe accident inside a pressure reduction type reactor container. CONSTITUTION:A pipe (C) 16, which connect; a pressure reduction chamber space portion 8 to a lower dry well 5, has a pipe (A) 21 mounted on its opening on the side of the lower dry cell 5 with a check valve 22 mounted to the pipe (A) 21, and communicates to a reactor pressure vessel 2 from a gravitational dropping ECCS pool 6 is provided with a branch pipe 23 extended to the lower dry well 5, with a thermally fusing plug 24 mounted to the end portion of the pipe 23. The opening of the pipe (A) 21 on the side of the pressure reduction chamber space portion 8 is located within the range of height between a return line 1 and the water level of a pressure reduction pool 7 at normal operation, and the opening of the pipe (A) 21 on the side of the lower dry well 5 is held in position lower than the height of the uppermost opening of a vent pipe underwater opening 10.

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