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1. 发明专利

JPH0854482A NUCLEAR FUSION REACTOR 失效
公开(公告)号：JPH0854482A
公开(公告)日：1996-02-27
申请号：JP18844794
申请日：1994-08-10
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： KINOSHITA SHIGEMI , OZAWA YOSHIHIRO , KAJIURA SOJI , MIYA NAOYUKI , NINOMIYA HIROMASA
IPC分类号： G21B1/11 , G21B1/00 , G21B1/13 , G21B1/17
摘要： PURPOSE:To shorten the time required for the entire repairing work by reducing the exposure of an operator at the time of transporting a radioactivated diverter to a repairing place, and further facilitating the transporting work. CONSTITUTION:A circumferential pool chamber 21 for storing water 22 is disposed in the periphery of the nuclear fusion reactor, and a radioactivated diverter 6 is filed in water 22 of the chamber 21, and then transported in the state imersed in the water 22. At the time of normal operating of generating a plasma, a leak valve is installed to discharge high-temperature high-pressure gas to the chamber 21 when the pressure in a vacuum vessel 3 is abnormally raised. Accordingly, since the water 22 shields the radiation, the operator can approach, the operator can work while visually confirming the state of the diverter 6 under the water by the operator himself. Therefore, the work is facilitated, and the time required for the work can be shortened.

2. 发明专利

JPH05315128A SUPERCONDUCTING APPARATUS 失效
公开(公告)号：JPH05315128A
公开(公告)日：1993-11-26
申请号：JP12174992
申请日：1992-05-14
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST , HITACHI ENG CO LTD
发明人： HAYASHI KATSUMI , HANDA HIROYUKI , MIZOGUCHI TADANORI , MIYA NAOYUKI , NAGAMI MASAYUKI
IPC分类号： G21B1/11 , G21B1/25 , G21C11/08 , G21F1/08 , H01F6/00 , H01F6/06 , H01F7/22 , G21B1/00 , H01F5/08
摘要： PURPOSE:To prevent heat generation and damage due to radiation of a superconducting material by arranging element of lithium or material including lithium in such a manner as surrounding at least a region of superconducting material to be exposed to neutron. CONSTITUTION:A superconducting coil formed by winding and bundling a plurality of lines of superconducting material 1 is arranged and supported in plural numbers in a bobbin. In both sides of a train of this superconducting coils, insulating materials 3 are stacked and a heat shielding material 5 is arranged within the region to be exposed to the neutron of insulating materials 3. The further outside of this heat shielding material 5 is provided with a material layer 6 including lithium. With this material layer 6, the neutron acts for n, alphareaction to reduce neutron. Moreover, the material layer 6 does not generate the secondary gamma rays. Thereby, heat generation by radiation of superconducting coil can be prevented and damage of superconducting coil due to neutron can also be prevented.

3. 发明专利

JPH10111374A SHEAR PANEL OF NUCLEAR FUSION DEVICE 失效
公开(公告)号：JPH10111374A
公开(公告)日：1998-04-28
申请号：JP26826296
申请日：1996-10-09
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： MAKI KOICHI , HAYASHI KATSUMI , OTSUKA MICHIO , MIYA NAOYUKI , KIKUCHI MITSURU
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17
摘要： PROBLEM TO BE SOLVED: To improve the effect of shielding radiation by disposing a shear panel so as to cover the space formed by adjacent toroidal coils. SOLUTION: A shear panel 2 is disposed so as to cove between the panel and a toroidal coil 1. A space where a shear panel 2 is not disposed at upper and lower parts between the panel and the toroidal coil 1 is a space where an upper port and support legs of a vacuum container penetrate. A space on a lower side wall of the shear panel 2 is a space where a diver air exhausted duct penetrates. This shear panel 2 can spatially interrupt gamma rays generated by mutual action of a neutron generated a furnace core plasma and a substance constituting the neutron generated from the furnace plasma and a first wall or bracket or the like. Further, the shear panel 2 is formed by laminating a substance containing a planar stainless steel and hydrogen element. Thereby, the effect of shielding radiation can be enhanced.

4. 发明专利

JPH10239471A VACUUM VESSEL FOR NUCLEAR FUSION SYSTEM 失效
公开(公告)号：JPH10239471A
公开(公告)日：1998-09-11
申请号：JP4668097
申请日：1997-02-28
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TOYOSHIMA NOBORU , MIYA NAOYUKI , MATSUZAWA HIDEKI , UCHIDA TAKAO
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable vacuum vessel by discharging remaining gas in a connection part to the outside of the vessel via an exhaust path, thereby preventing a connecting liner from being broken due to the remaining gas, and detecting leak from the connection part of inner wall. SOLUTION: An exhaust groove 10 is formed between a main board 6 and a protection board 7 so that it is arranged along a connection part of an inner wall 1 of a vacuum vessel, and an exhaust pipe 12 is connected at its one end to an exhaust hole 11 penetrating the main board 6 while it is communicated with the groove 10. To the other end of the pipe 12 a leak detector 13, an exhaust pump 14, an analyzer 15 and a display 16 are connected. By the drive of a pump 14, remaining gas of connection part 8 is discharged to the outside of vacuum vessel from the groove 10 and the pipe 12. Accordingly, breakage of connection liner 9 caused by the remaining gas generated at the time of welding can be prevented, and the part of main board 6 and the liner 9 can be sealed in vacuum. Leak from the connection part 8 of the inner wall 1 can be detected by a detector 13. An analyzer 15 reserves and relays the result of detection of the detector 13 while a display displays thereon an output of the analyzer 15.

5. 发明专利

JPS59107289A Controller for changeover of polarity of magnetic field coil 失效
标题翻译：磁场线圈极化控制器
公开(公告)号：JPS59107289A
公开(公告)日：1984-06-21
申请号：JP21739682
申请日：1982-12-11
申请人： Japan Atomic Energy Res Inst , Toshiba Kk
发明人： SHIMADA RIYUUICHI , MIYA NAOYUKI , AOYANAGI TETSUO , TOYODA EIJI , YOSHIZAWA SUSUMU
IPC分类号： G21B1/21 , G21B1/00 , G21B1/11 , G21B1/25 , H05H1/12
CPC分类号： Y02E30/126

6. 发明专利

JPS58172982A POWER SOURCE FOR NUCLEAR FUSION REACTOR 失效
公开(公告)号：JPS58172982A
公开(公告)日：1983-10-11
申请号：JP5343682
申请日：1982-03-31
申请人： JAPAN ATOMIC ENERGY RES INST , TOKYO SHIBAURA ELECTRIC CO
发明人： SHIMADA RIYUUICHI , MIYA NAOYUKI , AOYANAGI TETSUO , OZAKI AKIRA , TAGAMI YOSHIROU
IPC分类号： G21B1/11 , G21B1/25 , H02M9/00 , H02M11/00
摘要： PURPOSE:To eliminate the production of an abnormal voltage in a coil at the abnormally erasing time of a plasma current by detecting a voltage between the anode and the cathode of a thyristor and firing a thyristor when the voltage becomes larger than the prescribed value. CONSTITUTION:When a plasma current is abruptly decreased or erased, the current of a current transformer coil 4 decreases in the negative absolute value, and the current is intermittently flowed. Since the overvoltage which is produced in the coil 4 at this time becomes forward to the thyristor 14, this voltage is detected in a self-firing type gate circuit 15, and when it exceeds the prescribed overvoltage level, it generates a gate signal to fire the thyristor 14. Then, the coil 4 is shortcircuited, thereby preventing a high voltage from being generated between the terminals.

7. 发明专利

JPH09230073A VACUUM CONTAINER OF NUCLEAR FUSION APPARATUS 失效
公开(公告)号：JPH09230073A
公开(公告)日：1997-09-05
申请号：JP3648596
申请日：1996-02-23
申请人： JAPAN ATOMIC ENERGY RES INST , MITSUBISHI HEAVY IND LTD
发明人： KIKUCHI MITSURU , MIYA NAOYUKI , SUZUKI MASARU
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17
摘要： PROBLEM TO BE SOLVED: To reduce the radiation dose rate of a vacuum container body, improve the safety and reliability, simplify the structure, improve shielding performance, and simplify a reactor body system and improve the safety thereof by forming at least one of a vacuum container body and a shielding material by boron-contained metal. SOLUTION: In the case of charging powder and compact of B4 C or the like as a thermal neutron absorbing material together with a metallic shielding material 5 and shielding water 6 between multiple walls, the problem is caused concerning the shielding performance and structure such as a lack in the shielding performance caused by non-uniformity of charging and the complicacy of structure. In a vacuum container of this nuclear fusion device, at least one of the vacuum container body 2 and the shielding material 5 is formed by boron- contained metal, whereby pure water can be used as shielding water 6, every demerit caused by using high concentration boron water can be removed, uniform shielding effect can be expected, and the structure can be simplified. Thus, it is possible to provide a reactor body system with high safety and reliability.

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