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51. 发明专利

JP2002031449A CRYOGENIC COOLING APPARATUS 失效
公开(公告)号：JP2002031449A
公开(公告)日：2002-01-31
申请号：JP2000216273
申请日：2000-07-17
申请人： TOSHIBA CORP
发明人： TAKAHASHI MASAHIKO , YAZAWA TAKASHI , KURIYAMA TORU
IPC分类号： F25D3/10 , F25B9/02 , H01F6/04
摘要： PROBLEM TO BE SOLVED: To provide a cryogenic cooling apparatus capable of shortening a precooling time without impairing the excellent cooling characteristics of a pressurized superfluid helium. SOLUTION: A first vessel 12 holding a superconducting coil 11 and a second vessel 13 wherein the pressurized superfluid helium is produced are connected by a plurality of piping lines 14a and 14b. In precooling, the liquid helium is sent from the second vessel 13 to the first vessel 12 through one piping 14b, while a helium gas evaporated with cooling of the superconducting coil 11 is sent from the first vessel 12 to the second vessel 13 through the other piping 14a.

52. 发明专利

JP2002005552A COLD-GENERATING EQUIPMENT AND COOLING APPARATUS IN WHICH SUPERCONDUCTIVITY IS APPLIED FOR COOLING THROUGH USE OF THE EQUIPMENT 失效
公开(公告)号：JP2002005552A
公开(公告)日：2002-01-09
申请号：JP2000186147
申请日：2000-06-21
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： YAZAWA TAKASHI , TAKAHASHI MASAHIKO , OTANI YASUMI , KURIYAMA TORU , OKUMA TAKESHI , SATO AYAFUMI , TAKAHASHI YOSHIHISA
IPC分类号： F25D3/10 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To provide a cold-generating equipment for supercooling a refrigerant without reducing pressure, and provide a cooling apparatus in which superconductivity is applied for cooling through the use of the equipment. SOLUTION: In the cold-generating equipment, a vessel 1 is composed of an outer tank 2 and an inner tank 3, and a space 4 between the tanks 2 and 3 is decompressed. A refrigerant-pouring part 8, a pressure-regulating part 9, a gas-discharge part 10, a refrigerating device 11, and an insulation part 7 are provided in the inner tank 4.

53. 发明专利

JPH11288809A SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPH11288809A
公开(公告)日：1999-10-19
申请号：JP10193298
申请日：1998-03-31
申请人： TOSHIBA CORP
发明人： ITO KOJI , ONO MICHITAKA , KURIYAMA TORU , MORII YASUJI
IPC分类号： F17C3/08 , F17C13/00 , F25D19/00 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To improve cooling capability, without immersing a coil into refrigerant and to facilitate handling by providing a superconducting coil in a surrounding radiation shield, and providing a ultra-low temperature refrigerant container, which stores a refrigerant with a refrigerator and is in thermal contact with the superconducting coil directly or via a heat conduction member. SOLUTION: A superconducting coil 1 is surrounded by a radiation shield 2, and the radiation shield 2 is surrounded by a vacuum container 4 furthermore. An ultra-low temperature refrigerant container 13 is arranged on the upper part of the superconducting coil 2 and thermally connected to the coil 1. The ultra-low temperature refrigerant container 13 is formed of a stainless pipe and constituted by a container 13a storing the refrigerant and a block 13b, which is formed of superior heat conducting material and holds the container 13a. A low-temperature stage 7a of a refrigerator 7 is inserted into the container 13a of the ultra-low-temperature refrigerant container 13. A high-temperature side stage 17b is thermally connected to the radiation shield 2. A refrigerant-gas storing part 14 is provided in the vacuum container 4 and communicated to the ultra-low temperature refrigerant container 13 by a communicating pipe 15. Condensed liquid helium is stored at a low-temperature-side stage 7a of the refrigerator 7.

54. 发明专利

JPH1183264A SUPERCONDUCTING UNIT AND GAS COGENERATION SYSTEM 失效
公开(公告)号：JPH1183264A
公开(公告)日：1999-03-26
申请号：JP24828397
申请日：1997-09-12
申请人： TOSHIBA CORP
发明人： NOMURA SHIYUNJI , YONEDA ERIKO , KURIYAMA TORU , TSURUNAGA KAZUYUKI , MATSUZAKI JUN
IPC分类号： F25D3/10 , F25B9/00 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To obtain a low price superconducting unit in which the size and the running cost is reduced while enhancing a energy utilization rate by providing a cooling system employing a liquefied gas principally comprising a methane gas as a coolant. SOLUTION: An inner tank 12 is set in an outer tank 11 in order to contain liquid helium 13 and a superconducting machine 14 being immersed into the liquid helium and cooled. The space between the inner and outer tanks 12, 11 is then evacuated to form a vacuum thermal insulation layer 15 in which first, second and third thermal shields 16-18 are arranged sequentially from the outside while surrounding the inner tank 12. Coolant piping 24 is arranged on the substantially entire outer surface of the first thermal shield 16 while being coupled thermally therewith. The coolant piping 24 has one end 25 coupled with a liquefied natural gas supply principally comprising methane and the other end 26 coupled with a natural gas collection system.

55. 发明专利

JPH10256615A COLD KEEPING UNIT 失效
公开(公告)号：JPH10256615A
公开(公告)日：1998-09-25
申请号：JP6315097
申请日：1997-03-17
申请人： TOSHIBA CORP
发明人： ROOHANA CHANDORA , TAKAHASHI MASAHIKO , OTANI YASUMI , KURIYAMA TORU , NAKAGOME HIDEKI
IPC分类号： H01L39/04 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To provide a cold keeping unit in which the cold keeping time can be prolonged sufficiently without significantly increasing the overall weight of the unit. SOLUTION: The cold keeping unit comprises a plurality of sheets of thermal insulator 8-1,..., 8-6 disposed in contact with, respectively, with a plurality of heat shield plates 1-1,..., 1-6. With regard to the heat shield plate 1-3, the heat shield plate 1-4 adjacent to the heat shield plate 1-3 and remote from an object 4 to be cooled, and the heat shield plate 1-2 adjacent to the heat shield plate 1-3 and close to the object 4 to be cooled, the ratio of the number of sheets Ni-1 of thermal insulators touching the heat shield plate 1-3 to the number of sheets Ni of thermal insulators touching the heat shield plate 1-2 is reversely proportional to the ratio of the temperature difference (Ti-1 -Ti ) between the heat shield plates 1-4 and 1-3 to the temperature difference (Ti -Ti+1 ) between the heat shield plates 1-3 and 1-2.

56. 发明专利

JPH07283023A SUPERCONDUCTING OXIDE CURRENT LEAD 失效
公开(公告)号：JPH07283023A
公开(公告)日：1995-10-27
申请号：JP6713494
申请日：1994-04-05
申请人： TOSHIBA CORP
发明人： YAMAMOTO KAZUO , YAMADA MINORU , NOMURA SHIYUNJI , SAKUGI TAMAKI , KURIYAMA TORU , NAKAGOME HIDEKI , URATA MASAMI , ARAOKA KATSUMASA , KADOMA SHIGEKI
IPC分类号： H01F6/06 , H01B12/00
摘要： PURPOSE:To provide a superconducting oxide current lead which can exhibit highly reliable current conducting function constantly by enhancing the mechanical characteristics thereby preventing rupture, crack or deterioration of superconductivity due to strain or stress at the time of cooling. CONSTITUTION:The superconducting oxide current lead comprises an oxide superconductor lead body 8, a flexible conductor lead part 9 connected in series with the lead body 8 at least on one end side thereof, and a protective pipe 10 applied over the lead body 8 and the lead part 9 while being spaced apart therefrom in order to protect the peripheral surface thereof. In other words, strain caused by the difference of thermal expansion/shrinkage between the lead body 8 and the protective pipe 10 is absorbed by connecting the superconducting or normal conducting flexible lead part 9 in series with the oxide superconductor lead body 8 for conducting current passed through the protective pipe 10 at least on one end side thereof.

57. 发明专利

JPH07193994A CURRENT LEAD AND CURRENT LIMITER EMPLOYING IT 失效
公开(公告)号：JPH07193994A
公开(公告)日：1995-07-28
申请号：JP34718393
申请日：1993-12-27
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： HARA CHIKUSHI , NAKADE MASAHIKO , HONJO SHOICHI , KURIYAMA TORU , NAKAGOME HIDEKI , YAZAWA TAKASHI , TAZAKI KENJI , MAEDA HIDEAKI , YAMAMOTO KAZUO , ARAOKA KATSUMASA
IPC分类号： H02H9/02
摘要： PURPOSE:To provide a current lead for suppressing the intrusion of heat effectively and a current limiter employing it. CONSTITUTION:Superconducting current limiting elements 7a, 7b, 7c are set in an inner tank 2 so that they are cooled by liquid helium H. Bushings 9, 11 penetrate the wall of the inner tank 2 and the wall of an outer tank 3. A current path for connecting the superconducting current limiting element in series with the electric circuit is established through the bushings 9, 11 and a current lead 12 having a turnup part 15 between the bushings 9, 11 is provided with an oxide superconductor 13 being employed between the turnup part 15 and the bushing 9 while a copper material being employed between the turnup part 15 and the bushing 11. A refrigerator 16 cools the turnup part 15 of each current lead 12 at a temperature determined by the critical temperature of the oxide superconductor 13.

58. 发明专利

JPH07146021A HEAT TRANSFER APPARATUS 失效
公开(公告)号：JPH07146021A
公开(公告)日：1995-06-06
申请号：JP29198793
申请日：1993-11-22
申请人： TOSHIBA CORP
发明人： OTANI YASUMI , HATAKEYAMA HIDEO , TAKAHASHI MASAHIKO , KURIYAMA TORU , NAKAGOME HIDEKI
IPC分类号： F25B9/00
摘要： PURPOSE:To provide a heat transfer apparatus capable of sufficiently reducing thermal resistance on clamped contact surfaces. CONSTITUTION:A heat transfer apparatus is provided with a first and second heat conducting elements 12, 14, which are clamped and joined to each other, thereby forming a heat transfer path. The apparatus has a metallic heating medium 19 having a great thermal conductivity, which is inserted between the first heat conducting element 12 and the second heat conducting element 14, and a convex surface 16 and a concave surface 18, which are formed on the first and second heat conducting elements 12, 14, respectively, and which press and crush the metallic heating medium 19 with a force at the time of clamping and joining the first and second heating elements together, whereby a portion of the metallic heating medium 19, which is not covered with an oxide film, is brought into contact with the first and second heat conducting elements 12, 14.

59. 发明专利

JPH0674584A CRYOGENIC REFRIGERATOR AND OPERATING METHOD THEREOF 失效
公开(公告)号：JPH0674584A
公开(公告)日：1994-03-15
申请号：JP22978992
申请日：1992-08-28
申请人： TOSHIBA CORP
发明人： TAKAHASHI MASAHIKO , KURIYAMA TORU , NAKAGOME HIDEKI
IPC分类号： F25B9/00 , F25B9/02
摘要： PURPOSE:To provide a cryogenic refrigerator and a method for operating the same in which a refrigerating efficiency of the refrigerator is further improved. CONSTITUTION:A cryogenic refrigerator pulls down compressed helium gas in a cooling stage 9 of a cylinder 7 of a cold storage refrigerator, and then expands it by a Joule-Thomson effect to generate cold. The cylinder 7 is formed of a block 80 in which a part of a cooling stage 9 is formed integrally with a passage 81 for feeding refrigerant gas to pull down it, and which is connected integrally with the residual part of the cylinder. A magnetic material having a magnetic transfer point in a temperature range of substantially 10 to 15 deg.K is provided as a cold material in a cold storage unit of a cold storage type refrigerator. Further, it comprises operating speed control means for controlling an operating speed of the refrigerator and pressure control means for controlling pressure of the refrigerant gas.

60. 发明专利

JPH05322340A PULSE TUBE FREEZER MACHINE 失效
公开(公告)号：JPH05322340A
公开(公告)日：1993-12-07
申请号：JP13252392
申请日：1992-05-25
申请人： TOSHIBA CORP
发明人： KURIYAMA TORU , HATAKEYAMA HIDEO , NAKAGOME HIDEKI , MATSUBARA YOICHI
IPC分类号： F25B9/00
摘要： PURPOSE:To increase each of phase differences between a pressure variation and a refrigerant gas displacement and improve an efficiency by a method wherein a plurality of auxiliary valves are arranged between a terminal end of a pulse tube and a discharging port as well as a suction port of a gas compressor, these valves are controlled in their opening or closing in response to a plurality of main valves. CONSTITUTION:A freezer machine is provided with at least a cold heat generating device 1. The cold heat generating device is comprised of a cold heat accumulator 3 and a pulse tube 5 connected in series with the cold heat accumulator through a low temperature heat exchanger 4. In this case, one end of a pipe 21 is connected to a terminal end of the pulse tube 5 and the other is connected to a discharging port at an upstream side higher than a high pressure valve 9 in a discharging passage 11 of a gas compressor 2 through an auxiliary high pressure valve 22. In addition, it is further connected to a suction port at a downstream side lower than a low pressure valve 10 in a suction passage 12 of the gas compressor 2 through an auxiliary low pressure valve 23. Each of the high pressure valve 9, the low pressure valve 10, the auxiliary high pressure valve 22 and the auxiliary low pressure valve 23 is controlled in its opening or closing operation in response to each other and then an opening or closing valve timing is selected.

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