WO2007116520A1 - 超電導ケーブル - Google Patents
超電導ケーブル Download PDFInfo
- Publication number
- WO2007116520A1 WO2007116520A1 PCT/JP2006/307579 JP2006307579W WO2007116520A1 WO 2007116520 A1 WO2007116520 A1 WO 2007116520A1 JP 2006307579 W JP2006307579 W JP 2006307579W WO 2007116520 A1 WO2007116520 A1 WO 2007116520A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cable
- heat insulating
- superconducting
- pipe
- superconducting cable
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/14—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by the disposition of thermal insulation
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- 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 present invention relates to a superconducting cable. In particular, does it have a vacuum insulation structure?
- the present invention relates to a superconducting cable that has a vacuum heat insulating structure but can maintain heat insulating performance even if the vacuum breaks.
- FIG. 8 is a cross-sectional view of a three-core collective superconducting cable.
- the superconducting cable has a configuration in which three cores 110 are housed in a heat insulating tube 600.
- the cable core 110 includes a former 111, a superconducting conductor layer 112, an insulating layer 113, a shield layer 114, and a protective layer 115 in order from the center.
- the conductor layer 112 is configured by winding a superconducting wire on a former 111 spirally in multiple layers.
- a superconducting wire is used in the form of a tape in which a plurality of filaments having oxide superconducting material strength are arranged in a matrix such as a silver sheath.
- the insulating layer 113 is configured by winding insulating paper such as semi-synthetic insulating paper.
- the shield layer 114 is formed by spirally winding a superconducting wire similar to the conductor layer 112 on the insulating layer 113.
- insulating paper or the like is used for the protective layer 115.
- the heat insulating pipe 600 has a structure in which a heat insulating material (not shown) is disposed between the double pipes composed of the inner pipe 610 and the outer pipe 620 and the inside of the double pipe is evacuated.
- An anticorrosion layer 630 is formed outside the heat insulating tube 600.
- a refrigerant such as liquid nitrogen is filled in the former 111 (when the former is hollow) or the space formed between the inner tube 610 and the core 110 is circulated and used while the insulating layer 113 is impregnated with the refrigerant. State.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-140944 (FIG. 2)
- a vacuum heat insulating structure is required, and the size of the cable increases.
- the present invention has been made in view of the above circumstances, and a main object thereof is to provide a superconducting cable that retains predetermined heat insulation characteristics without having a vacuum heat insulation structure.
- Another object of the present invention is to provide a superconducting cable that has a vacuum heat insulating structure but can maintain a predetermined heat insulating characteristic even when the vacuum is broken.
- the present invention achieves the above object by using a heat insulating member other than vacuum heat insulating.
- the superconducting cable of the present invention includes a cable member in which a core having a superconducting conductor layer and an insulating layer is housed in a housing tube, and a heat insulating member provided outside the cable member and maintained in a non-vacuum state. And a sealing member for preventing moisture from entering the heat insulating member.
- the superconducting cable of the present invention includes a cable member, and a heat insulating member held in a non-vacuum state.
- the cable member also serves as a core and a storage tube for storing the core.
- the core has at least a superconducting conductor layer and an insulating layer.
- the former, superconductor layer, insulating layer, shield layer, and protective layer are provided in order from the center.
- the shield layer may also be composed of a superconducting wire.
- the former retains the superconducting conductor layer in a predetermined shape, and a pipe-shaped or stranded wire structure can be used.
- the material is preferably a nonmagnetic metal material such as copper or aluminum.
- the inside of the former can be used as a refrigerant flow path.
- the superconducting conductor layer is formed, for example, by spirally winding a wire made of a superconducting material on a former.
- a specific example of the superconducting wire is a tape-like one in which a plurality of filaments made of 2223 series oxide superconducting material are arranged in a matrix such as a silver sheath.
- the winding of the superconducting wire may be a single layer or a multilayer. In the case of a multilayer structure, an interlayer insulating layer may be provided.
- the interlayer insulating layer may be formed by winding insulating paper such as kraft paper or semi-synthetic insulating paper such as PPLP (registered trademark, manufactured by Sumitomo Electric Industries, Ltd.).
- the insulating layer is preferably formed by winding semi-synthetic paper such as PPLP (registered trademark of Sumitomo Electric Industries) laminated with polypropylene and kraft paper, or insulating paper such as kraft paper.
- a semiconductive layer may be formed between at least one of the inner and outer circumferences of the insulating layer, that is, between the conductor layer and the insulating layer, or between the insulating layer and the shield layer.
- the shield layer is formed by winding a superconducting wire similar to the conductor layer, which is made of a conductive material, outside the insulating layer.
- a superconducting wire for the shield layer, it is possible to suppress a current having a phase opposite to that of the conductor current from flowing through the shield layer and leaking an alternating magnetic field to the outside.
- a cushion layer may be interposed between the former and the conductor layer.
- the cushion layer avoids direct metal-to-metal contact between the foam and superconducting wire and prevents damage to the superconducting wire.
- the cushion layer It also has a function to make the surface smoother.
- insulating paper or strong paper can be suitably used as a specific material for the cushion layer.
- the storage pipe is a pipe material that stores the core, and has a function of mechanically protecting the core.
- a stainless or aluminum corrugated tube can be used as the storage tube.
- the housing tube basically has a heat insulating performance for maintaining the refrigerant temperature of the cable member.
- the heat insulating performance described later bears the heat insulating performance. That is, it is preferable that the heat insulation layer is not provided in the storage tube. With this configuration, the outer diameter of the storage tube can be made as small as possible.
- the storage pipe may have a heat insulating function.
- either heat insulation structure of vacuum insulation or non-vacuum insulation may be used.
- the vacuum insulation structure is adopted for the storage tube, the outer diameter of the cable member cannot be reduced compared to the conventional superconducting cable.
- the insulation member described later can be used alone or stored. There is no problem because the heat insulation characteristics of the cable members are maintained by the combination of the heat insulation characteristics of the pipe and the heat insulation characteristics of the heat insulation members.
- the vacuum degree of the storage tube lower than the vacuum degree of the heat insulation tube of the conventional superconducting cable.
- this heat insulation characteristic is lower than the heat insulation characteristic necessary for maintaining the refrigerant temperature of the cable member, and the heat insulation characteristic.
- the non-vacuum heat insulating structure of the storage tube can be simplified, and the heat insulating characteristics necessary to maintain the refrigerant temperature of the cable member are the same between the non-vacuum heat insulating structure of the storage tube and the heat insulating member described later. Secured in combination.
- a heat insulating member held in a non-vacuum state is disposed outside the storage tube.
- This heat insulating member basically has a heat insulating performance to maintain the refrigerant temperature of the cable member.
- As the structure of the heat insulating member at least one of a laminated heat insulating material and a filled heat insulating material is suitable.
- As the laminated heat insulating material so-called super insulation (laminated metal foil and plastic mesh) that is also used in conventional superconducting cables can be suitably used.
- glass wool, foamed resin, sand, gravel, etc. can be suitably used as the filling heat insulating material.
- an airgel is desirable for the heat insulating member.
- Airgel is a porous material in which a large number of extremely fine pores of nano-order are formed, and has high heat insulation properties.
- Siri Force Aerogel has a large number of pores with an average of 10 nm, its thermal conductivity is 10 mW / mK (38 ° C, 1 atm), has a very high thermal insulation, and is extremely lightweight.
- Pyrogel trade name manufactured by Aspen Airgel, Inc. of the United States can be used.
- These heat insulating members can obtain superconducting cables according to various required characteristics by adopting any one of laminated heat insulating materials, filled heat insulating materials alone, and combinations of laminated heat insulating materials and filled heat insulating materials. Can do.
- the laminated heat insulating material can cover the cable member so as to be wound, it is easy to form the outer shape of the laminated heat insulating material into a cylindrical shape.
- the filling heat insulating material can be selected from various materials and external shapes that have a high degree of freedom in the material and external shape, and can be selected according to the installation environment, allowable dimensions, and allowable cost.
- the laminated heat insulating material on the inner peripheral side of the heat insulating member and the filled heat insulating material on the outer peripheral side thereof.
- the superconducting cable is suitable for the installation environment by disposing the laminated heat insulating material on the inner periphery side, which can effectively insulate radiant heat mainly and obtain high heat insulating properties, and by arranging the filled heat insulating material on the outer peripheral side. You can select the external shape.
- Said heat insulation member is distribute
- the sealing member has a function of preventing moisture from entering the heat insulating member and thereby maintaining the heat insulating characteristics of the heat insulating member.
- the heat insulating member is, for example, a laminated heat insulating material or a heat insulating material filled with a seal member, it is necessary to hold the heat insulating member in a predetermined shape for a sealing member that is difficult to retain by itself. It also has a function to make.
- the seal member is made of a material capable of preventing moisture from entering.
- a metal tube, a metal sheet, or a laminate material of a metal sheet and a plastic sheet can be suitably used. These metal sheets and laminates cover the outer periphery of the heat insulating member and join the sheet edges together by welding or adhesion to prevent moisture from entering the sheet.
- Aluminum, aluminum alloy, stainless steel and the like can be suitably used for the metal tube and the metal sheet.
- the number of cable members may be one or more.
- the cable members are arranged close to each other.
- the cable member group and the heat insulating member are arranged in the case where a plurality of adjacent cable members are collectively arranged in the heat insulating member.
- the contact area (per 1 article) becomes smaller. As a result, the heat of penetration per cable member can be reduced. In particular, other cable members adjacent to each other can be cooled with each other, and a further heat insulating effect can be expected.
- the specific distance when the cable members are brought close to each other is zero, that is, the cable members are in contact with each other.
- the gap be less than or equal to the outer diameter of the cable member. By selecting such an interval, intrusion heat per cable member can be reduced. More preferably, the distance between the cable members is less than half of the outer diameter of the cable members.
- the cable member may be provided with a refrigerant transport pipe in proximity.
- the refrigerant transport pipe here is a pipe line used for transporting various refrigerants.
- transport pipes such as liquid hydrogen, liquid oxygen, liquid nitrogen or LNG are listed.
- These refrigerant pipes are usually used for transporting cryogenic refrigerants used in hydrogen stations and various plants, and are more efficient by placing them in the heat insulating member close to the cable member.
- the cable member can be insulated (cooled).
- the refrigerant transport pipe is also arranged close to the cable member, as in the case of arranging a plurality of cable members. It is desirable that the “proximity” here is the same distance as the “proximity” between the cable members. That is, particularly when the refrigerant temperature in the refrigerant transport pipe is lower than the refrigerant temperature for cooling the superconducting conductor layer of the cable member, it can be expected to cool the cable member adjacent to the refrigerant transport pipe.
- auxiliary heat insulating structure is a heat insulating structure for preventing each refrigerant of the cable member and the refrigerant transport pipe from coming off from an appropriate temperature mainly due to mutual heat transfer between the cable member and the refrigerant transport pipe.
- the refrigerant in the cable member is liquid nitrogen (boiling point about 77K, melting point about 63mm) and the refrigerant in the refrigerant transport tube is liquid hydrogen (boiling point about 20mm), the cable member and the refrigerant transport tube are too close to each other. There is a possibility that the liquid nitrogen in the cable member is cooled too much and solidifies, or the liquid hydrogen in the refrigerant transport pipe is warmed and vaporized. For this reason, for example, it is preferable to provide an auxiliary thermal insulation structure in the cable member to prevent the liquid nitrogen in the cable member from being cooled more than necessary or the liquid hydrogen in the refrigerant transport pipe from being warmed.
- the heat insulation structure is such that the amount of heat by which the cable member is warmed by intrusion heat from the outside and the amount of heat by which the cable member is cooled by the cold heat from the refrigerant transport pipe are balanced, either the cable member or the refrigerant transport pipe Is more preferable because it is easy to maintain at an appropriate temperature.
- the refrigerant of the cable member is liquid nitrogen (boiling point approximately 77 mm, melting point approximately 63 mm) and the refrigerant in the refrigerant transport tube is liquid natural gas LNG (boiling point approximately 110 mm, melting point approximately 90 mm)
- the cable member Depending on the configuration and distance of the refrigerant transport pipe, the liquid nitrogen in the cable member may be heated and vaporized, and LNG may be cooled more than necessary and solidify. Therefore, for example, it is preferable to provide an auxiliary heat insulating structure in the refrigerant transport pipe to prevent the liquid nitrogen of the cable member from being warmed or cooling LNG more than necessary.
- the heat insulation structure is such that the amount of heat by which the refrigerant transport pipe is warmed by the intrusion heat from the outside and the amount of heat by which the refrigerant transport pipe is cooled by the cold heat from the cable member are balanced, the! It is better to keep the deviation at the proper temperature.
- the auxiliary heat insulating structure provided in the cable member or the refrigerant transport pipe may be a vacuum heat insulating structure or a non-vacuum heat insulating structure.
- the storage pipe itself constituting the cable member may be configured as a heat insulating layer, or a heat insulating layer may be formed outside the storage forming the cable member.
- the refrigerant transport pipe itself may be configured as a heat insulating layer, or a heat insulating layer may be formed outside the refrigerant transport pipe.
- the heat insulating material used for the auxiliary heat insulating structure various known materials can be used as long as they satisfy necessary heat insulating characteristics.
- a configuration in which at least one of the cable member and the refrigerant transport path is accommodated in a pipe line and a heat insulating member is provided outside the pipe line is preferable.
- the “cable member or refrigerant transport tube” and the “assembly of the conduit, heat insulating member, and seal member” can be manufactured separately, and later in the conduit of the assembly.
- a superconducting cable can be constructed, and the efficiency of manufacturing and laying the cable can be improved.
- the cable member or the refrigerant transport pipe can be installed independently by inserting the cable member or the refrigerant transport pipe into the corresponding pipe line. At this time, since the conduit is provided for each cable member or refrigerant transport pipe, it is possible to easily replace the stored items in the pipe.
- the pipe line be constructed to be airtight.
- the gap between the pipe and at least one of the cable member and the refrigerant transport pipe housed in the pipe is sealed at both ends of the pipe containing the cable member.
- the housing tube of the cable member has a vacuum heat insulation structure. If the inside of the pipe is airtight, when a storage tube with a vacuum sealed structure is used, it is possible to suppress a decrease in the heat insulation performance of the storage tube even if the vacuum sealed structure of the storage tube is broken. In particular, it is preferable to evacuate the inside of the pipe after sealing both ends of the pipe. With this configuration, even if the vacuum sealing structure of the storage pipe is broken, the inside of the pipe line is kept in a vacuum! Therefore, it is possible to more effectively suppress the deterioration of the heat insulation performance of the cable member.
- the superconducting cable of the present invention can be used in any laying form such as being buried in the ground or concrete, being placed in the air, or being installed on the ground surface.
- any laying form such as being buried in the ground or concrete, being placed in the air, or being installed on the ground surface.
- the soil around the superconducting cable has a heat insulating function, it is possible to more efficiently insulate the superconducting cable.
- the superconducting cable of the present invention can also be used for the!
- the only loss lost by AC loss is only intrusion heat. Therefore, a power line with minimal loss can be configured by efficient heat insulation using a heat insulating member.
- the cable member itself can basically reduce the diameter of the cable member that does not need to have a heat insulating function.
- FIG. 1 is a schematic view showing a buried state of the superconducting cable of the present invention in Example 1.
- this superconducting cable has a single cable member 100, a heat insulating member 200 covering the cable member 100, and a seal member 300 covering the heat insulating member 200. It is buried inside the ground G.
- the single-core superconducting cable member 100 includes a former 111, a superconducting conductor layer 112, an insulating layer 113, a shield layer 114, a protective layer 115, and a storage tube 120 in order from the center.
- the former 111 to the protective layer 115 constitute the core 110, and the core 110 is accommodated in the accommodating tube 120.
- Superconducting wires are used for the conductor layer 112 and the shield layer 114.
- Superelectric power used for this cable member 100 The conducting wire is maintained in a superconducting state by circulating a refrigerant (here, liquid nitrogen) in the space between the core 110 and the storage tube 120.
- a refrigerant here, liquid nitrogen
- the former 111 a plurality of insulated copper strands twisted together was used.
- the former 111 with a stranded wire structure, it is possible to simultaneously reduce AC loss and suppress temperature rise due to overcurrent.
- the outer strand is made thinner than the center strand, so that the irregularities due to the grooves appear as small as possible on the outer circumference of the former 111.
- a Bi2223-based Ag-Mn sheath tape wire having a thickness of 0.24 mm and a width of 3.8 mm was used. This tape wire is wound in multiple layers on the former to form the superconducting conductor layer 112. In this conductor layer 112, the twist pitch of the superconducting wire is different in each layer. In addition, the current flowing in each layer can be equalized by changing the winding direction for each layer or for each of a plurality of layers.
- An insulating layer 113 is formed on the outer periphery of the superconducting conductor layer 112.
- the insulating layer 113 can be configured using, for example, an insulating tape (PPLP: registered trademark manufactured by Sumitomo Electric Industries, Ltd.) obtained by laminating kraft paper and a resin film such as polypropylene.
- PPLP registered trademark manufactured by Sumitomo Electric Industries, Ltd.
- a shield layer 114 is provided on the insulating layer 113.
- the shield layer 114 is formed by winding a superconducting wire similar to that used for the conductor layer 112. In this shield layer 114, a current in the reverse direction is induced with the same magnitude as that of the conductor layer 112, thereby canceling out the magnetic field generated from the conductor layer 112 and preventing leakage of the magnetic field to the outside.
- a protective layer 115 is formed on the shield layer 114 by wrapping kraft paper.
- the protective layer 115 mainly mechanically protects the shield layer 114 and electrically insulates from the storage tube 120.
- a core 110 composed of the former 111 to the protective layer 115 is accommodated in the accommodating tube 120.
- a stainless corrugated tube was used for the storage tube 120.
- a refrigerant for cooling the superconducting wire is circulated in the storage tube 120.
- the storage tube 120 does not have a double tube structure, and does not have a heat insulating structure for keeping the refrigerant at an extremely low temperature.
- the heat insulating member 200 is arranged so as to cover the periphery of the storage tube 120 (FIG. 1).
- This insulation member 200 is a cable It is provided with a thickness that provides the heat insulating properties necessary to keep the refrigerant in the member at a predetermined cryogenic temperature. Further, in this example, the heat insulating member 200 is arranged so that its cross-sectional shape is substantially rectangular. This cross-sectional shape is not limited to a rectangle as long as it is determined according to the conditions of the installation location, but may be a circle or the like.
- the outer periphery of the heat insulating member 200 is covered with a seal member 300.
- the sealing member 300 prevents the underground moisture from entering the heat insulating member.
- a stainless steel sheet is wound around the outer periphery of the heat insulating member 200, and the edge of this sheet is joined by welding to form a seal member.
- the superconducting cable having such a configuration since the vacuum heat insulating layer is not used, it is not necessary to maintain and manage the vacuum. Further, in the conventional superconducting cable, there may be a situation where power transmission is stopped when an abnormality occurs in the heat insulation characteristics of the vacuum heat insulating layer. However, according to the cable of the present invention, such a situation can be avoided. Furthermore, the heat insulation performance of a heat insulation member can be maintained over a long period of time by using a seal member.
- the heat insulating member 200 described above may be replaced with a silica airgel.
- silica airgel Pyrogel (trade name) of Aspen Aerogel, Inc., USA, etc. can be used.
- Silica airgel is lightweight and has excellent heat insulation properties, so that the thickness of the heat insulation member 200 can be made thinner than other materials.
- FIG. 3 is a schematic view showing a buried state of the superconducting cable of the present invention in Example 2.
- Example 1 differences from Example 1 will be mainly described, and description of common configurations will be omitted.
- the heat insulation member 200 is configured by wrapping a super insulation around a cable member group.
- the intrusion heat per one cable member can be reduced. .
- this is because the total contact area force S with the heat insulating member 200 of the cable member group becomes smaller when arranged as a contact state, and the cable members can cool each other.
- FIG. 4 is a schematic diagram showing a buried state of the superconducting cable of the present invention in Example 3.
- differences from Example 2 are mainly described, and descriptions of common configurations are omitted.
- the three refrigerant transport pipes 400 are disposed adjacent to the three cable members 100, and the cable member 100 and the refrigerant transport pipe 400 are formed in an inverted triangle shape as a whole. Place it in! /
- the refrigerant transported by the refrigerant transport pipe 400 was liquid hydrogen (refrigerant temperature: about 20K).
- the intrusion heat per cable member can be reduced in the same manner as in Example 2. Further, since the refrigerant transport pipe 400 is at a lower temperature than the cable member 100, the cable member 100 can be cooled by the refrigerant transport pipe 400.
- the cable member 100 may be provided with an auxiliary heat insulating structure. If the refrigerant in the cable member 100 is liquid nitrogen (boiling point approx. 77K, melting point approx. 63 ⁇ ) and the refrigerant in the refrigerant transport pipe 400 is liquid hydrogen (boiling point approx. 20 ⁇ ), the cable member 100 and the refrigerant transport pipe 400 are too close There is a possibility that the liquid nitrogen of the cable member 100 is cooled too much and solidifies, or the liquid hydrogen of the refrigerant transport pipe 400 is heated and vaporized.
- the cable member 100 is provided with an auxiliary thermal insulation structure, it is possible to prevent the liquid nitrogen in the cable member 100 from being cooled more than necessary or the liquid hydrogen in the refrigerant transport pipe 400 from being warmed.
- An example of the auxiliary heat insulating structure is to provide a plastic jacket on the outside of a stainless corrugated pipe that is a storage pipe.
- FIG. 5 is a schematic view showing a buried state of the superconducting cable of the present invention in Example 4.
- the heat insulating member is composed of two kinds of materials. That is, the inner peripheral side close to the cable member was constituted by the laminated heat insulating material 210, and the outer peripheral side far from the cable member cover was constituted by the filled heat insulating material 220. More specifically, super insulation is used as the laminated heat insulating material 210, and foamed resin is used as the filled heat insulating material 220.
- FIG. 6 is a schematic view showing a buried state of the superconducting cable of the present invention in Example 5. Again, differences from the second embodiment will be mainly described, and descriptions of common configurations will be omitted.
- each of the three cable members 100 is accommodated in the pipe line 500.
- the three cable members 100 are prepared, the heat insulating member 200 common to the outside of the three pipe lines 500 is disposed, and the outer periphery of the heat insulating member 200 is covered with the seal member 300.
- a superconducting cable can be obtained by individually housing each of the three cable members 100 in each pipe 500 in the assembly. Therefore, a superconducting cable can be laid for each line.
- the housing pipe of the cable member 100 is a vacuum heat insulating pipe having a double pipe force, and the end of the pipe line 500 is sealed to evacuate the inside of the force pipe line 500 as well.
- the degree of vacuum of the storage pipe and the degree of vacuum in the pipe line may be lower than the degree of vacuum between heat insulation in the conventional superconducting cable. This is because the heat insulating property of the cable member 100 is maintained by the heat insulating member 200 that covers the outside of the cable member 100.
- FIG. 7 is a cross-sectional view of a cable member constituting the single-core superconducting cable of Example 6. Again, mainly the differences from Example 1 are explained, and the common configuration The description about it is omitted.
- the storage tube 120 of the cable member 100 in Example 1 has a vacuum heat insulating structure with double tube force. That is, the storage tube 120 has an inner tube 121 and an outer tube 122, and a super-insulation is arranged between both the tubes 121 and 122, and a vacuum is formed.
- the vacuum insulation structure is used for the storage tube 120, it is not possible to eliminate the maintenance of the vacuum, but in the unlikely event that the vacuum performance of the storage tube 120 is abnormal. Even if it occurs, since the heat insulating performance of the cable member 100 is maintained by the heat insulating member, a more reliable superconducting cable line can be constructed.
- the single-core superconducting cable is a three-core superconducting cable, the same structure as in Fig. 8 can be used.
- the superconducting cable of the present invention can be suitably used as a power transportation means.
- FIG. 1 is a schematic view showing a buried state of a superconducting cable in Example 1.
- FIG. 2 is a cross-sectional view of a cable member constituting the superconducting cable of Example 1.
- FIG. 3 is a schematic view showing a buried state of a superconducting cable in Example 2.
- FIG. 4 is a schematic view showing a buried state of a superconducting cable in Example 3.
- FIG. 5 is a schematic view showing a buried state of a superconducting cable in Example 4.
- FIG. 6 is a schematic view showing a buried state of a superconducting cable in Example 5.
- FIG. 7 is a cross-sectional view of a cable member constituting the superconducting cable of Example 6.
- FIG. 8 is a cross-sectional view of a conventional superconducting cable.
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Abstract
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200680027084.1A CN101228595B (zh) | 2006-04-10 | 2006-04-10 | 超导电缆 |
EP06731526.7A EP2006861A4 (en) | 2006-04-10 | 2006-04-10 | SUPERCONDUCTING CABLE |
PCT/JP2006/307579 WO2007116520A1 (ja) | 2006-04-10 | 2006-04-10 | 超電導ケーブル |
CA002581348A CA2581348A1 (en) | 2006-04-10 | 2006-04-10 | Superconducting cable |
US11/661,958 US20090229848A1 (en) | 2006-04-10 | 2006-04-10 | Superconducting cable |
KR1020077005942A KR101198503B1 (ko) | 2006-04-10 | 2006-04-10 | 초전도 케이블 |
NO20071131A NO20071131L (no) | 2006-04-10 | 2007-02-28 | Superledende kabel |
US13/011,661 US8354591B2 (en) | 2006-04-10 | 2011-01-21 | Superconducting cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/307579 WO2007116520A1 (ja) | 2006-04-10 | 2006-04-10 | 超電導ケーブル |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/661,958 A-371-Of-International US20090229848A1 (en) | 2006-04-10 | 2006-04-10 | Superconducting cable |
US13/011,661 Division US8354591B2 (en) | 2006-04-10 | 2011-01-21 | Superconducting cable |
Publications (1)
Publication Number | Publication Date |
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WO2007116520A1 true WO2007116520A1 (ja) | 2007-10-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/307579 WO2007116520A1 (ja) | 2006-04-10 | 2006-04-10 | 超電導ケーブル |
Country Status (6)
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US (2) | US20090229848A1 (ja) |
EP (1) | EP2006861A4 (ja) |
KR (1) | KR101198503B1 (ja) |
CN (1) | CN101228595B (ja) |
CA (1) | CA2581348A1 (ja) |
WO (1) | WO2007116520A1 (ja) |
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DE102010006507B4 (de) | 2010-02-02 | 2011-09-22 | Rwth Aachen | Supraleitungsvorrichtung sowie Verwendung eines syntaktischen Schaumes bei Supraleitungsvorrichtungen |
US20120267070A1 (en) * | 2011-04-22 | 2012-10-25 | Kevin Mack | Beverage transport assembly |
NO2732075T3 (ja) * | 2011-07-12 | 2018-08-11 | ||
DK2685469T3 (en) * | 2012-07-11 | 2017-08-14 | Nexans | Arrangement with at least one superconducting cable |
KR102351517B1 (ko) * | 2015-02-17 | 2022-01-14 | 엘에스전선 주식회사 | 케이블 포설장치 |
CN109215869B (zh) * | 2018-09-25 | 2020-04-07 | 安徽徽宁电器仪表集团有限公司 | 一种防水型控制电缆 |
KR102028369B1 (ko) * | 2019-05-24 | 2019-10-04 | 한국전력공사 | 초전도 케이블을 이용한 전기차 충전 장치 |
CN110835567A (zh) * | 2019-11-07 | 2020-02-25 | 中国科学院理化技术研究所 | 一种降低lng凝固点的方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191906A (en) * | 1981-05-22 | 1982-11-25 | Furukawa Electric Co Ltd | Single core type crygenic cable |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844476U (ja) | 1971-09-29 | 1973-06-09 | ||
DE2340228B2 (de) | 1973-08-08 | 1976-02-12 | Siemens AG, 1000 Berlin und 8000 München | Elektrische vielschichtisolierung fuer tiefgekuehlte kabel, insbesondere supraleitende drehstromkabel |
SU1438501A1 (ru) | 1986-08-27 | 1996-01-10 | Ереванский политехнический институт им.К.Маркса | Способ изготовления высоковольтного кабеля |
JPS643907A (en) | 1987-06-26 | 1989-01-09 | Fujikura Ltd | Oxide superconductor cable |
US4845308A (en) * | 1987-07-20 | 1989-07-04 | The Babcock & Wilcox Company | Superconducting electrical conductor |
JP2895507B2 (ja) | 1989-05-12 | 1999-05-24 | 古河電気工業株式会社 | 超電導ケーブル |
JPH04774A (ja) | 1990-04-18 | 1992-01-06 | Idemitsu Kosan Co Ltd | スクイッド素子及びその製造方法 |
US5400602A (en) * | 1993-07-08 | 1995-03-28 | Cryomedical Sciences, Inc. | Cryogenic transport hose |
RU2087956C1 (ru) | 1993-08-24 | 1997-08-20 | Александр Степанович Лещенко | Сверхпроводящий кабель |
JPH07169343A (ja) * | 1993-10-21 | 1995-07-04 | Sumitomo Electric Ind Ltd | 超電導ケーブル導体 |
JP2627874B2 (ja) * | 1995-08-30 | 1997-07-09 | 株式会社フジクラ | 酸化物超電導体ケーブル |
US5991647A (en) * | 1996-07-29 | 1999-11-23 | American Superconductor Corporation | Thermally shielded superconductor current lead |
WO2000039813A1 (en) * | 1998-12-24 | 2000-07-06 | Pirelli Cavi E Sistemi S.P.A. | Superconducting cable |
JP2002140944A (ja) | 2000-10-31 | 2002-05-17 | Sumitomo Electric Ind Ltd | 超電導ケーブル |
EP1205945B1 (en) * | 2000-11-14 | 2008-09-10 | Prysmian Cavi e Sistemi Energia S.r.l. | Superconducting cable |
CN1230835C (zh) * | 2003-03-10 | 2005-12-07 | 北京云电英纳超导电缆有限公司 | 具有双层冷却通道结构的热绝缘超导电缆及其冷却方法 |
US7279686B2 (en) * | 2003-07-08 | 2007-10-09 | Biomed Solutions, Llc | Integrated sub-nanometer-scale electron beam systems |
RU2255164C1 (ru) | 2004-04-23 | 2005-06-27 | Общество с ограниченной ответственностью "СЕВАН" | Бумага электропроводящая кабельная |
JP4689984B2 (ja) | 2004-07-20 | 2011-06-01 | 株式会社ワイ・ワイ・エル | 直流超伝導送電ケーブル及び送電システム |
JP4826996B2 (ja) * | 2004-07-29 | 2011-11-30 | 住友電気工業株式会社 | 超電導ケーブル線路 |
-
2006
- 2006-04-10 KR KR1020077005942A patent/KR101198503B1/ko not_active IP Right Cessation
- 2006-04-10 WO PCT/JP2006/307579 patent/WO2007116520A1/ja active Application Filing
- 2006-04-10 EP EP06731526.7A patent/EP2006861A4/en not_active Withdrawn
- 2006-04-10 CA CA002581348A patent/CA2581348A1/en not_active Abandoned
- 2006-04-10 US US11/661,958 patent/US20090229848A1/en not_active Abandoned
- 2006-04-10 CN CN200680027084.1A patent/CN101228595B/zh not_active Expired - Fee Related
-
2011
- 2011-01-21 US US13/011,661 patent/US8354591B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191906A (en) * | 1981-05-22 | 1982-11-25 | Furukawa Electric Co Ltd | Single core type crygenic cable |
Also Published As
Publication number | Publication date |
---|---|
US20110203827A1 (en) | 2011-08-25 |
CN101228595B (zh) | 2014-04-16 |
CN101228595A (zh) | 2008-07-23 |
EP2006861A1 (en) | 2008-12-24 |
KR101198503B1 (ko) | 2012-11-06 |
US8354591B2 (en) | 2013-01-15 |
CA2581348A1 (en) | 2007-10-10 |
EP2006861A4 (en) | 2014-08-06 |
US20090229848A1 (en) | 2009-09-17 |
KR20090023538A (ko) | 2009-03-05 |
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