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1. 发明专利

JPS59116089A Reactor pressure suppression chamber 失效
标题翻译：反应器压力抑制室
公开(公告)号：JPS59116089A
公开(公告)日：1984-07-04
申请号：JP22963682
申请日：1982-12-23
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： FUKUMOTO TOSHIHIKO , KONNO YASUHIRO , HIRAGA YOSHIHIKO , KUBONIWA TAKAO
IPC分类号： G21C9/004 , G21C9/00
CPC分类号： Y02E30/40

2. 发明专利

JPS57182198A COOLANT CLEANUP FACILITY OF NUCLEAR REACTOR 失效
公开(公告)号：JPS57182198A
公开(公告)日：1982-11-09
申请号：JP6516181
申请日：1981-05-01
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO , KONNO YASUHIRO , KUMAGAI MAKOTO , OOSUMI KATSUMI
IPC分类号： G21D3/08 , G21C19/30 , G21C19/307 , G21D3/14

3. 发明专利

JPH0434119B2 失效
公开(公告)号：JPH0434119B2
公开(公告)日：1992-06-04
申请号：JP64483
申请日：1983-01-06
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO , KONNO YASUHIRO
IPC分类号： G21C19/307 , G21C19/30

4. 发明专利

JPS6038691A COOLING SYSTEM OF AUXILIARY MACHINERY FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS6038691A
公开(公告)日：1985-02-28
申请号：JP14695783
申请日：1983-08-11
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO
IPC分类号： G21C15/00 , G21D1/00 , G21D1/04

5. 发明专利

JPS56119430A REACTOR BUILDING HEATING SYSTEM 失效
公开(公告)号：JPS56119430A
公开(公告)日：1981-09-19
申请号：JP2172980
申请日：1980-02-25
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： OKADA SAKAE , KUBONIWA TAKAO , SHIRAISHI TADASHI
IPC分类号： F24D3/00 , G21D9/00
摘要： PURPOSE:To reduce the amount of heavy oil consumed in a heating system, by producing hot water by cooling reactor water at a nonregenerative heat exchanger in a reactor cooling medium purifying system, and feeding the hot water to a radiator. CONSTITUTION:In order to heat air in a central control room for a reactor, hot water produced by cooling reactor water in a nonregenerative heat exchanger 4 is supplied to a radiator 6 installed in the control room, with a selector valve 7 being opened and a by-pass valve 8 being closed. Air in the control room is heated by ventilating heated air in the room by means of a fan 9. With such an arrangement, it is enabled to reduce the amount of heavy oil consumed in the heating system considerably as compared with the conventional systems in which heavy oil is used for producing hot water or steam for heating the room.

6. 发明专利

JPS5614995A DEVICE OF FEEDING EMERGENCY CORE COOLANT 失效
公开(公告)号：JPS5614995A
公开(公告)日：1981-02-13
申请号：JP9039779
申请日：1979-07-18
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO , SANADA TAKAHIRO , OCHIAI KANEHIRO
IPC分类号： G21C15/18 , G21C15/22

7. 发明专利

JPH01292292A NUCLEAR REACTOR 失效
公开(公告)号：JPH01292292A
公开(公告)日：1989-11-24
申请号：JP12076188
申请日：1988-05-19
申请人： HITACHI LTD
发明人： HIRABAYASHI KENTARO , TSUJI AKIO , KUBONIWA TAKAO , TAKAHARA YOSHINORI
IPC分类号： G21C15/243 , F04D7/08 , G21C15/24
摘要： PURPOSE:To enable an injection of a substantial amount of purge water and to decrease a thermal fatigue of pump nozzles, by discharging a part of the purge water injected to a neck part for fixing a pump, to outside, before the water reaches a nozzle at a bottle neck for fixing a pressure vessel. CONSTITUTION:A purge water to be supplied to an internal pump is fed by a purge water feed pump 11 through a purge water piping system. A part of the purge water is discharged through a purge water discharge line 22 and is led to a suction piping of a pump 14 of a reactor coolant purification system. The part of the purge water led to the reactor coolant purification system 23, is pressurized by the pump 14, is treated contained foreign substances, such as crudes and so on, by a filtrating demineralizer 15 for the reactor coolant purification system, and then returns to a reactor pressure vessel 1 through a regenerative heat exchanger 12 of the reactor coolant purification system and a feed water piping 16. With this procedure, an amount of the purge water being fed from a purge water system 10 increases and therewith, thermal fatigue of pump nozzles are mitigated.

8. 发明专利

JPS62182698A CONDENSATE FEEDWATER FACILITY 失效
公开(公告)号：JPS62182698A
公开(公告)日：1987-08-11
申请号：JP2384186
申请日：1986-02-07
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO , MORISHIMA HIDEHO , KONNO YASUHIRO
IPC分类号： G21D1/02

9. 发明专利

JPS6082792A ADJUSTING DEVICE FOR QUANTITY OF HEAT EXCHANGED 失效
公开(公告)号：JPS6082792A
公开(公告)日：1985-05-10
申请号：JP19081083
申请日：1983-10-14
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO
IPC分类号： F28F27/00
摘要： PURPOSE:To reduce power consumption required for driving a pump, and to attain economical temperature control by controlling the number of revolution of the pump and adjusting the quantity of heat exchange between a secondary fluid and a primary fluid. CONSTITUTION:A secondary fluid is passed through pipings 2, 8 and circulated among coolers 9 and a heat exchanger 5 by a pump 1 turned and driven at fixed speed. The secondary fluid, a temperature thereof is elevated in the cooler 9 sections, is heat-exchanged with seawater being forwarded from a pump 11 in the heat exchanger 5 section and the temperature of the secondary fluid is lowered and returned to a set temperature, and the secondary fluid is recirculated. The secondary fluid forwarded toward the coolers 9 through the piping 8 is supercooled because the temperature of seawater is lowered in the winter season. The quantity of seawater fed to the heat exchanger 5 is lowered because the state of the supercooling is detected by a temperature detector 7 and a revolution- number adjusting device 13 receiving a detected output signal reduces the number of revolution of a motor 12. Accordingly, the temperature of the secondary fluid is returned to one close to the set one, and the set one is kept while reducing the power consumption of the motor 12.

10. 发明专利

JPS5835499A POOL WATER CLEANING DEVICE 失效
公开(公告)号：JPS5835499A
公开(公告)日：1983-03-02
申请号：JP13413881
申请日：1981-08-28
申请人： HITACHI LTD
发明人： KUBONIWA TAKAO
IPC分类号： C02F1/28 , G21F9/00 , G21F9/06 , G21F9/12

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