WO2011046038A1 - 超電導機器用容器および超電導機器 - Google Patents

超電導機器用容器および超電導機器 Download PDF

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Publication number
WO2011046038A1
WO2011046038A1 PCT/JP2010/067403 JP2010067403W WO2011046038A1 WO 2011046038 A1 WO2011046038 A1 WO 2011046038A1 JP 2010067403 W JP2010067403 W JP 2010067403W WO 2011046038 A1 WO2011046038 A1 WO 2011046038A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
metal
side fixing
opening
lead electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2010/067403
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
尾山　仁
剛 新里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to US13/148,532 priority Critical patent/US8374664B2/en
Priority to DE112010003943T priority patent/DE112010003943T8/de
Priority to CN201080007705.6A priority patent/CN102318098B/zh
Publication of WO2011046038A1 publication Critical patent/WO2011046038A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/68—Connections to or between superconductive connectors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/80—Constructional details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
    • H01F6/065—Feed-through bushings, terminals and joints
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Definitions

  • the structure which mounts a superconducting coil in a liquid nitrogen tank, and electrically connects the said superconducting coil and external load using a metal member (for example, lead electrode) is used.
  • a pipe for supplying liquid nitrogen as a refrigerant to the liquid nitrogen tank is connected to the liquid nitrogen tank holding the superconducting coil inside.
  • the liquid nitrogen tank is preferably a vacuum heat insulating container.
  • the vacuum heat insulating container provided with the radiant heat suppression film can suppress heat penetration from the outside with high efficiency.
  • a liquid nitrogen tank (vacuum insulation container) for storing a superconducting coil a storage container made of FRP (fiber reinforced plastic) has been widely used. Since FRP has sufficient strength and is low in cost, it has been widely used as a material for storage containers.
  • Such an FRP storage container is provided with an opening in an FRP plate material that forms the wall surface inside or outside the FRP container, and a metal member such as a lead electrode or a metal pipe is crossed while passing through the opening. A longitudinal direction is arranged.
  • a metal member such as a lead electrode or a metal pipe is crossed while passing through the opening.
  • a longitudinal direction is arranged.
  • an internal thread portion is provided on the inner wall of the opening provided on the wall surface of the FRP storage container.
  • An external thread part is provided in the outer peripheral part of the metal member arrange
  • An adhesive may be sandwiched between the female screw portion and the male screw portion in order to make the both firmly fixed.
  • an adhesive is applied from the outside as viewed from the opening of the FRP plate material, and the male screw portion of the metal member is attached.
  • the adhesive portion may be peeled off or a crack may be generated from the adhesive portion.
  • air may flow (leak) from the outside to the inside of the vacuum heat insulating container. If such a leak occurs, the function of the superconducting coil may be impaired.
  • Patent Document 1 a flange portion is provided on a member provided with a male screw (male screw member) and a member provided with a female screw (female screw member).
  • a method for manufacturing an FRP cryostat having a structure in which the surface is arranged on the same plane as the plate material (wall surface) of an FRP storage container is disclosed.
  • the FRP cryostat disclosed in Patent Document 1 has a structure in which a plate member (wall surface) of an FRP container is provided with a recess, and a flange is fitted into the recess.
  • the male screw member provided with the flange and the metal member such as the lead electrode joined to the male screw member It is fixed only at one place of the joint insertion hole formed in the male screw member. For this reason, it is the structure which can relieve
  • the male screw member and the metal member and the FRP storage container are connected to an adhesive portion between the male screw member to which the metal member is bonded and the FRP storage container. Since the thermal stress due to the difference in thermal expansion directly acts, there is a problem that the possibility of peeling or cracking from the bonded portion cannot be completely eliminated. Furthermore, the possibility of occurrence of peeling or cracking of the adhesive portion as described above is also high in that the difference in coefficient of thermal expansion between the FRP and the material constituting the metal member or male screw member is large.
  • the present invention has been made in view of the above problems.
  • the purpose is to suppress the occurrence of delamination and cracks at the fixing part between the wall of the container for superconducting equipment that houses a superconductor such as a superconducting coil and the metal member fixed so as to penetrate the wall of the container for superconducting equipment. It is an object to provide a container for a superconducting device that can be used and a superconducting device using the container for a superconducting device.
  • a container for a superconducting device is a container for a superconducting device that holds a member including a superconductor inside, and is disposed so as to penetrate a resin casing member having an opening and the opening.
  • the resin casing member may be made of, for example, FRP.
  • the temperature inside the casing member reaches the liquid nitrogen temperature in order to cool the superconductor.
  • the deformation amount (thermal shrinkage amount) due to the temperature change differs between the casing member and the metal member.
  • peeling or cracking may occur from the connection portion between the housing member and the adhesive or the adhesive and the metal member. is there.
  • the connecting member that connects the housing member and the metal member has a curved portion that has a structure that absorbs the difference in heat shrinkage between the housing member and the metal member, for example, a container for a superconducting device. Even if the temperature rises (or drops), the difference in thermal expansion (thermal shrinkage) between the housing member and the metal member is absorbed by the deformation of the curved portion. Is done. For this reason, generation
  • the superconducting device container for example, a case where the temperature inside the casing member is cooled to the liquid nitrogen temperature in order to cool the superconductor is considered.
  • the deformation amount (thermal shrinkage amount) due to the temperature change differs between the casing member and the metal member.
  • peeling or cracking may occur from the connection portion between the housing member and the adhesive or the adhesive and the metal member. .
  • the container internal space 10 of the vacuum heat insulating container 20 is filled with a refrigerant such as liquid nitrogen, for example. This enables the superconducting coil 60 to function as an electromagnet.
  • An opening for penetrating the lead electrode 50 which is a metal member, is formed in the plate material constituting one side surface of the vacuum heat insulating container 20. That is, the lead electrode 50 is disposed (connected) so as to penetrate through the opening provided in the lower wall surface (plate material) of FIG.
  • a vacuum heat insulating container 40 having a vacuum heat insulating tank 30 inside is further disposed outside the vacuum heat insulating container 20. That is, the superconducting coil 60 is protected from the outside by the double vacuum heat insulating container.
  • a radiant heat suppression film is disposed in the vacuum heat insulating tank 30. This is to prevent heat from entering the container internal space 10 of the vacuum heat insulating container 20 and keep the container internal space 10 in a cryogenic state.
  • the second connecting member 65 has a shape (doughnut-like shape) in which curved portions having a U-shaped cross section are connected in an annular shape.
  • the second connection member 65 has an annular shape in which the inner peripheral portion contacts the outer peripheral side surface of the lead electrode 50.
  • the outer peripheral portion of the second connecting member 65 is connected to a joining wall portion located on the outer periphery of the flange portion in the first connecting member 63. Further, the inner peripheral portion of the second connection member 65 is connected to the side wall of the lead electrode 50 by the bonding material 66.
  • the first connecting member 63 and the vacuum heat insulating container 20 are connected and fixed by screwing the uneven portion 34 of the first connecting member 63 into the uneven portion formed on the inner wall of the opening of the vacuum heat insulating container 20. ing.
  • region B of FIG. 1 and the other lead electrode 50 and the vacuum heat insulation containers 20 and 40 is the same as the structure shown in FIG.2 and FIG.3 mentioned above.
  • the gap between the first connection member 63 and the lead electrode 50 (the width in the left-right direction in FIG. 7)
  • the distance between the outer peripheral portion of the second connection member 65 and the lead electrode 50 can be made very narrow.
  • grooved part 34 of the 1st connection member 63 was formed can be made smaller than the size (namely, size of a curved part) of the 2nd connection member 65.
  • the diameter of the opening formed in the vacuum heat insulation container 20 can be made smaller than the width of the second connection member 65, the sealing performance at the connection portion between the lead electrode 50 and the vacuum heat insulation container 20 can be further improved. As a result, the lead electrode 50 and the vacuum heat insulating container 20 can be connected with higher reliability.
  • the uneven portion 34 can freely change the width of the uneven portion 34 along the vertical direction in FIG. Therefore, the connecting member can be freely deformed in the horizontal direction of FIG. 2 by the curved portion, and can be freely deformed to some extent by the uneven portion 34 in the vertical direction of FIG. As described above, the concavo-convex portion 34 can more reliably absorb the thermal stress between the lead electrode 50 and the vacuum heat insulating container 20.
  • connection portion between pipe 70 and vacuum heat insulating container 20 is basically the same as the structure of the connection portion between lead electrode 50 and vacuum heat insulating container 20 shown in FIGS. It is. That is, in the connection portion shown in FIG. 4, a pipe 70 for circulating a refrigerant instead of the lead electrode 50 in FIG. 2 passes through the opening and is connected to the second connection member 65. With such a configuration, it is possible to suppress the occurrence of peeling and cracking at the connection portion between the pipe 70 and the vacuum heat insulating container 20, similarly to the connection portion shown in FIGS. 2 and 3. Moreover, the structure of the connection part of the area
  • the connecting member 12 is preferably used in the region A that is a connecting portion between the vacuum heat insulating container 20 and the lead electrode 50 in FIG.
  • the connection part 12 between the vacuum insulation container 40 and the lead electrode 50 on the outer side that is, the region B surrounded by the round dotted line in FIG. You may connect using.
  • the connecting member 12 shown in FIG. 5 is applied to the region C in FIG. 1 (that is, the connecting portion between the pipe 70 and the vacuum heat insulating containers 20 and 40). You may apply.
  • the concavo-convex portion 34 functions as a screw portion for connecting and fixing the connecting member 32 to the vacuum heat insulating container 20 as described above.
  • the uneven portion 34 also acts as an elastically deformable spring-like structure that absorbs the difference in thermal expansion between the plate material and the lead electrode 50. That is, for example, the thermal stress generated in the bonding material 36 between the lead electrode 50 and the connection member 32 is propagated toward the vacuum heat insulating container 20 not only by the curved portion of the connection member 32 but also by the uneven portion 34. It is suppressed.
  • the sixth embodiment of the present invention is different from the first embodiment of the present invention only in each point described above. That is, the configuration, conditions, procedures, effects, and the like that have not been described above for the sixth embodiment of the present invention are all in accordance with the first embodiment of the present invention.
  • the housing-side fixing portion 73 extends from the inside of the large-diameter portion of the opening to the outer peripheral surface of the vacuum heat insulating container 20 and extends from the opening to the outside on the outer peripheral surface of the vacuum heat insulating container 20. including.
  • a through hole 74 is formed in the center portion of the housing side fixing portion 73.
  • the through hole 74 is formed to be continuous with the small diameter portion of the opening.
  • a screw structure 78 corresponding to the concavo-convex portion 34 is formed on the side surface of the lead electrode 50.
  • an end surface is taper-processed (namely, the thickness is outer periphery about the edge part of a metal flange part and a resin flange part). It is preferable to form an end face inclined with respect to the surfaces 72 and 82 so as to become thinner toward the end. If it does in this way, generation
  • connection member composed of the first and second connection members 63 and 65 shown in FIGS. 2 and 3 is a first connection member as a housing side fixing portion that contacts the inner wall of the opening.
  • 63 and a second connecting member 65 as a metal member side fixing portion having a width wider than the width of the opening and having a curved portion.
  • one end (end portion on the outer peripheral side) of the second connection member 65 is connected to the first connection member 63, and is located on the opposite side through the one end and the curved portion.
  • the other end (end on the inner peripheral side) may be connected to the lead electrode 50 or the pipe 70.
  • connection portion with the heat insulating containers 20 and 40 Concentration of thermal stress on the connection portion with the heat insulating containers 20 and 40 can be suppressed, and as a result, the possibility that the connection portion is damaged by the thermal stress can be reduced. Therefore, the vacuum heat insulating containers 20 and 40 and the lead electrode 50 or the pipe 70 can be more reliably connected.
  • the material constituting the connecting members 12, 22, 32, 42, 52, 63, 65 and the metal member side fixing portion 75 shown in FIG. 10 is preferably an Fe—Ni alloy.
  • resin which comprises the said vacuum heat insulation containers 20 and 40 is FRP.
  • the Fe—Ni alloy which is an alloy of iron (Fe) and nickel (Ni)
  • the Fe—Ni alloy has a small difference in thermal expansion coefficient from that of the resin (particularly FRP).
  • the connecting member is a metal casing side fixing portion 73 that contacts the inner wall of the opening, and a metal connected to the lead electrode 50 or the pipe 70 as a metal member.
  • the metal member side fixing portion 75 made of metal may be included.
  • the housing side fixing portion 73 may have a resin flange portion extending outward from the opening on the outer peripheral surface of the vacuum heat insulating containers 20 and 40 as the housing member.
  • the metal member side fixing portion 75 may have a metal flange portion that is disposed to face the resin flange portion. The metal flange portion and the resin flange portion may be joined by an adhesive member 76.
  • the stress relaxation portion may include a joint portion between the metal flange portion and the resin flange portion. Further, the bending portion is formed by connecting the connecting portion (the inner end connected to the lead electrode 50 in FIG. 10) connected to the lead electrode 50 or the pipe 70 in the metal member side fixing portion 75 and the metal flange portion. You may arrange
  • the portion where the metal flange portion and the resin flange portion are connected and fixed by the adhesive member 76 becomes the vacuum seal portion, a wide area vacuum seal portion where the flange portions face each other can be formed. Furthermore, since the metal flange portion and the resin flange portion can be made elastically deformable so as to relieve the thermal stress, the thermal stress can also be relieved by the elastic deformation of the flange portion.
  • the deformation amount (heat shrinkage amount) due to the temperature change is reduced between the vacuum heat insulating containers 20 and 40 and the lead. It differs from the electrode 50 or the pipe 70.
  • the connecting member that connects the vacuum heat insulating containers 20 and 40 and the lead electrode 50 or the pipe 70 is the amount of heat shrinkage between the vacuum heat insulating containers 20 and 40 and the lead electrode 50 or the pipe 70. It has a metal elastically deformable portion which is a structure that absorbs the difference between the two.
  • connection members 63 and 65 have a width wider than the width of the opening and the first connection member 63 as a housing side fixing portion that contacts the inner wall of the opening, and can be elastically deformed.
  • a second connecting member 65 as a metal member side fixing portion having a portion may be included.
  • one end of the second connection member 65 is connected to the first connection member 63, and the other end is located on the opposite side via an elastically deformable portion (curved portion). The end may be connected to the lead electrode 50 or the pipe 70.
  • the width of the first connection member 63 (that is, the width of the opening) can be made smaller than that of the second connection member 65. That is, since the width (diameter) of the opening formed in the vacuum heat insulating containers 20 and 40 can be set small independently of the configuration of the second connection member 65, the opening is larger than the case where the diameter of the opening is large. It is possible to suppress the heat entering and exiting from the part.
  • the connecting member has a resin-made housing-side fixing portion 73 that contacts the inner wall of the opening and an elastically deformable portion, and is a lead electrode as a metal member. 50 or a metal metal member side fixing portion 75 connected to the pipe 70 may be included.
  • the housing side fixing portion 73 may have a resin flange portion extending outward from the opening on the outer peripheral surface of the vacuum heat insulating containers 20 and 40 as the housing member.
  • the metal member side fixing portion 75 may have a metal flange portion that is disposed to face the resin flange portion. The metal flange portion and the resin flange portion may be joined by an adhesive member 76.
  • the portion where the metal flange portion and the resin flange portion are connected and fixed by the adhesive member 76 becomes the vacuum seal portion, a wide area vacuum seal portion where the flange portions face each other can be formed. Furthermore, since the metal flange portion and the resin flange portion can be made elastically deformable so as to relieve the thermal stress, the thermal stress can also be relieved by the elastic deformation of the flange portion.
  • the superconducting device container is a superconducting device container that holds a superconducting coil 60 that is a member including a superconductor inside, and is a vacuum heat insulating container as a resin casing member having an opening. 20, 40, a lead electrode 50 or pipe 70 as a metal member disposed so as to penetrate the opening, and a connection that covers the opening and connects the vacuum heat insulating containers 20 and 40 and the lead electrode 50 or pipe 70 A member (a connecting member including a metal member side fixing portion 75 and a housing side fixing portion 73).
  • the present invention is particularly excellent as a technique for enhancing the sealing property of the superconducting device to the outside.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
PCT/JP2010/067403 2009-10-14 2010-10-05 超電導機器用容器および超電導機器 Ceased WO2011046038A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/148,532 US8374664B2 (en) 2009-10-14 2010-10-05 Container for superconducting apparatus and superconducting apparatus
DE112010003943T DE112010003943T8 (de) 2009-10-14 2010-10-05 Behälter für eine supraleitende Vorrichtung und supraleitende Vorrichtung
CN201080007705.6A CN102318098B (zh) 2009-10-14 2010-10-05 用于超导装置的容器和超导装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2009237309 2009-10-14
JP2009-237309 2009-10-14
JP2010192004A JP5115606B2 (ja) 2009-10-14 2010-08-30 超電導機器用容器および超電導機器
JP2010-192004 2010-08-30

Publications (1)

Publication Number Publication Date
WO2011046038A1 true WO2011046038A1 (ja) 2011-04-21

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ID=43876089

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PCT/JP2010/067403 Ceased WO2011046038A1 (ja) 2009-10-14 2010-10-05 超電導機器用容器および超電導機器

Country Status (6)

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US (1) US8374664B2 (enExample)
JP (1) JP5115606B2 (enExample)
KR (1) KR20120080535A (enExample)
CN (2) CN104465010A (enExample)
DE (1) DE112010003943T8 (enExample)
WO (1) WO2011046038A1 (enExample)

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JP6239397B2 (ja) * 2014-02-07 2017-11-29 古河電気工業株式会社 超電導導体の冷却構造
EP2919325B1 (de) * 2014-03-11 2017-02-22 Nexans Endenabschluß für ein supraleitfähiges elektrisches Kabel
JP6386924B2 (ja) * 2015-01-27 2018-09-05 住友電気工業株式会社 液密構造、及び超電導ケーブルの導体引出構造
DE102015006558A1 (de) * 2015-01-29 2016-08-04 Liebherr-Hausgeräte Lienz Gmbh Vakuumdichte Foliendurchführung
KR101629788B1 (ko) * 2015-02-24 2016-06-14 기초과학연구원 초전도 가속관용 극저온 유지용기의 주파수 튜닝 장치
FR3045718B1 (fr) * 2015-12-16 2020-05-08 Safran Aircraft Engines Dispositif de traversee etanche d'une cloison de turbomachine
US9806510B2 (en) * 2016-01-20 2017-10-31 Ortronics, Inc. Cable guide
US10700502B2 (en) * 2016-11-02 2020-06-30 RPH Intellectual Holdings, LLC Wall penetration panel
US10794413B2 (en) * 2018-12-04 2020-10-06 Nanya Technology Corporation Connection assembly
CN112420312B (zh) * 2020-10-29 2022-04-08 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） 一种模块化高温超导磁体系统及其装配方法
JP7648426B2 (ja) * 2021-04-08 2025-03-18 住友重機械工業株式会社 超伝導磁石装置およびサイクロトロン
CN113199944B (zh) * 2021-06-17 2022-03-15 西南交通大学 一种超导电动悬浮磁体的传力结构

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JP2008218861A (ja) * 2007-03-07 2008-09-18 Taiyo Nippon Sanso Corp Ｆｒｐ製クライオスタットの製造方法
JP2010050314A (ja) * 2008-08-22 2010-03-04 Taiyo Nippon Sanso Corp Ｆｒｐ製クライオスタット

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Also Published As

Publication number Publication date
CN104465010A (zh) 2015-03-25
CN102318098A (zh) 2012-01-11
DE112010003943T8 (de) 2013-01-10
CN102318098B (zh) 2015-01-14
DE112010003943T5 (de) 2012-11-08
US20110319269A1 (en) 2011-12-29
JP5115606B2 (ja) 2013-01-09
JP2011103443A (ja) 2011-05-26
US8374664B2 (en) 2013-02-12
KR20120080535A (ko) 2012-07-17

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