WO2013117058A1 - High temperature super-conducting cable multi-segment connection device - Google Patents

High temperature super-conducting cable multi-segment connection device Download PDF

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Publication number
WO2013117058A1
WO2013117058A1 PCT/CN2012/074882 CN2012074882W WO2013117058A1 WO 2013117058 A1 WO2013117058 A1 WO 2013117058A1 CN 2012074882 W CN2012074882 W CN 2012074882W WO 2013117058 A1 WO2013117058 A1 WO 2013117058A1
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WO
WIPO (PCT)
Prior art keywords
superconducting cable
temperature superconducting
connecting device
layer
shielding layer
Prior art date
Application number
PCT/CN2012/074882
Other languages
French (fr)
Chinese (zh)
Inventor
肖立业
戴少涛
滕玉平
高智远
朱志芹
张丰元
张东
Original Assignee
中国科学院电工研究所
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Application filed by 中国科学院电工研究所 filed Critical 中国科学院电工研究所
Publication of WO2013117058A1 publication Critical patent/WO2013117058A1/en

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Classifications

    • 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
    • H02G15/00—Cable fittings
    • H02G15/34—Cable fittings for cryogenic cables
    • 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
    • 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 invention relates to a multi-section connecting device for a high-temperature superconducting cable, in particular to a device for connecting a low-temperature dewar pipe, a conducting conductor connection and an insulating system of a multi-stage high-temperature superconducting cable.
  • a high-temperature superconducting cable uses a high-temperature superconducting material having zero resistance and high current transmission characteristics as a conductor, and a low-cost liquid nitrogen as a cooling medium, and its transmission capacity is conventional. 3 to 5 times of cable, it has the advantages of large transmission capacity, low electromagnetic pollution and low loss. It is an important way to realize high-capacity and low-loss transmission.
  • the high-temperature superconducting cable energizing conductor and the low-temperature dewar tube are important components of the high-temperature superconducting cable, and realize the high-density superconducting cable high-density current-carrying function and the low-temperature environment. Limited to the objective conditions and technical conditions such as packaging and transportation, vacuum preparation, single superconducting cable can not be processed and transported in large length. Long-distance transmission requires the use of a multi-segment superconducting cable connection.
  • the connection of the superconducting cable includes three parts, that is, the connection of the energized conductor, the connection of the low temperature dewar tube, and the connection of the insulation system.
  • the superconducting cable energizing conductor is composed of a conducting conductor support tube, an energized conductor superconducting tape and a transition copper metal end.
  • the energized conductor superconducting tape is wrapped around the energized conductor support tube, and the ends of the energized conductor support tube are respectively welded on the transition copper metal end, and the ends of the energized conductor superconducting strip are respectively welded to the copper metal end.
  • the low temperature Dewar tube is used to provide low temperature protection to the energized conductor. It consists of two concentric stainless steels. The inner and outer tube sandwiches are wrapped with multiple layers of superinsulating material, and the interlayer is designed for high vacuum. The two ends of the low temperature Dewar tube are designed for the male and female ports respectively.
  • the superconducting cable insulation system includes an inner semiconductive layer, an insulating layer, an outer semiconductive layer, a metal shielding layer and a protective layer.
  • the insulation system is located on the outer layer of the superconducting cable of the superconducting cable.
  • the insulation system of the multi-section connecting device of the high-temperature superconducting cable also includes an inner semi-conductive layer, an insulating layer, an outer semi-conductive layer, a metal shielding layer and a protective layer.
  • Patent CN2638309 proposes a cable connection device, but is mainly used for the connection of electric wires for automobiles.
  • "High Voltage Technology” 2007, vol 33, No 12 and other documents "l lOkV national bridge cable joint failure analysis and treatment” involves a cable joint, the structure of which uses a sleeve crimp joint, the principle is to use copper sleeve After the two cable conductor ends are put into the sleeve, they are pressed and deformed together by a crimping device.
  • the object of the present invention is to solve the problem of intermediate connection of long-distance transmission multi-segment superconducting cable, and propose a high-temperature superconducting cable intermediate connection device to solve the problem of high-temperature superconducting cable energizing conductor connection, low-temperature dewar pipe connection and insulation system connection.
  • the invention provides a multi-segment connection device for a high-temperature superconducting cable, through which the superconducting cable current conductor, the low temperature dewar tube and the insulation system are respectively connected as a whole, thereby realizing the high temperature superconducting cable. Long distance transmission.
  • the multi-section connecting device of the high-temperature superconducting cable of the invention can realize the integral connection of a plurality of high-temperature superconducting cables. If the superconducting cable energizing conductor is a whole design, the high temperature superconducting cable multi-segment connecting device of the invention can also realize the single connection of the low temperature dewar tube and the insulating system.
  • the multi-section connecting device of the high-temperature superconducting cable of the invention comprises three connecting parts: a connecting portion of the superconducting cable energizing conductor, a connecting portion of the superconducting cable low temperature dewar pipe and a connecting portion of the superconducting cable insulating system.
  • the connecting portion of the superconducting cable through the electrical conductor is placed in the low temperature dewar tube of the superconducting cable, and the connecting portion of the superconducting cable insulation system is located on the outer surface of the supercritical dewar tube of the superconducting cable.
  • the superconducting cable energizing conductor connecting portion is composed of an energizing conductor compensating cord, a transition copper metal end, and an energizing conductor crimping terminal, and the end of the energizing conductor compensating cord is placed outside the end of the transition copper metal end, and the conducting conductor The crimp terminal is placed outside the end of the energized conductor compensation cord.
  • the superconducting cable low temperature dewar pipe connecting section is composed of a low temperature dewar pipe vacuum plugging male port, a low temperature dewar pipe vacuum plugging female port, a connecting flange, and an electric field equalizing plate.
  • the low temperature Dewar vacuum plug male port is connected through a connecting flange and a low temperature Dewar vacuum plug female port to form a low temperature Dewar connector.
  • Two semi-circular electric field equalizing plates are fastened to the outside of the connecting flange and welded as a whole. The low temperature Dewar connector and the electric field equalizing plate together form a low temperature Dewar connection.
  • the connecting portion of the superconducting cable insulation system is composed of a semi-conductive shielding layer in a multi-section connecting device of a high-temperature superconducting cable, a multi-section connecting device insulating layer of a high-temperature superconducting cable, and a multi-section connecting device of a high-temperature superconducting cable.
  • the semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable is placed in the innermost layer and wrapped on the outer surface of the low temperature Dewar pipe connecting section.
  • the high-temperature superconducting cable multi-section connecting device insulation layer is wrapped outside the semi-conductive shielding layer in the multi-section connecting device of the high-temperature superconducting cable.
  • the stress control layer is wrapped or packaged on the outer layer of the insulating layer of the multi-section connecting device of the high-temperature superconducting cable, and the axial position of the stress control layer is overlapped between the insulating layer of the multi-section connecting device of the high-temperature superconducting cable and the insulating layer of the high-temperature superconducting cable body.
  • the outer semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable is wrapped around the insulating layer and the stress control layer of the multi-section connecting device of the high-temperature superconducting cable.
  • the metal shield of the multi-section connecting device of the high-temperature superconducting cable is wrapped outside the semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable, and the outermost layer is the protective layer of the multi-section connecting device of the high-temperature superconducting cable.
  • the two superconducting cable energizing conductors are respectively connected to the two ends of the energizing conductor compensation cord through the crimping terminal, and a superconducting cable is connected to the low temperature dewar tube vacuum plugging male port in a super Conductor cable low temperature dewar tube vacuum plug female port; high temperature superconducting cable multi-section connecting device inner shield layer, high temperature superconducting cable multi-section connecting device insulation layer, high temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer and high temperature superconducting cable
  • the multi-section connecting device metal shielding layer and the high-temperature superconducting cable multi-section connecting device protective layer are respectively connected with the inner semi-conductive shielding layer, the insulating layer, the outer semi-conductive shielding layer, the metal shielding layer and the protective layer of the superconducting cable body insulation system.
  • the energized conductor compensating cord is composed of a plurality of copper cords that are braided or twisted together, and the number of compensating cords can be appropriately adjusted according to the current carrying capacity of the superconducting cable.
  • the low temperature dewar tube vacuum plugging male port and the low temperature dewar tube vacuum plugging female port are all designed as vacuum sandwich layers.
  • the low temperature Dewar tube vacuum plug male port is inserted in the low temperature Dewar tube vacuum plug female port.
  • the high-temperature superconducting cable multi-section connecting device semi-conductive shielding layer, high-temperature superconducting cable multi-section connecting device insulation layer, high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer, high-temperature superconducting cable multi-section connecting device protective layer are Heat shrinkable tubing.
  • the stress control layer is composed of a stress control tape wrapping or a stress cone, and the stress control layer width is not more than 200
  • the metal shield layer of the multi-section connecting device of the high-temperature superconducting cable is composed of a metal copper mesh or a metal copper strip.
  • Figure la bc is a schematic diagram of a multi-stage connection device for a high-temperature superconducting cable, wherein Figure la is a general view, Figure lb is a vacuum port of a superconducting cable low temperature dewar tube, and Figure lc is a superconducting cable low temperature dewar tube vacuum Plug in the female port diagram;
  • the multi-section connecting device of the high-temperature superconducting cable of the invention comprises three connecting parts: a connecting portion of the superconducting cable energizing conductor, a connecting portion of the superconducting cable low temperature dewar pipe and a connecting portion of the superconducting cable insulating system.
  • the connecting portion of the superconducting cable through the electrical conductor is placed in the low temperature dewar tube of the superconducting cable, and the connecting portion of the superconducting cable insulation system is located on the outer surface of the supercritical dewar tube of the superconducting cable.
  • the superconducting cable energizing conductor connecting portion is composed of an energizing conductor compensating cord 19, a transition copper metal tip 23, and an energizing conductor crimping terminal 20.
  • the end of the energized conductor compensating cord 19 is placed outside the end of the transition copper metal tip 23, and the energizing conductor crimping terminal 20 is placed outside the end of the energizing conductor compensating cord 19.
  • the superconducting cable low temperature dewar pipe connecting section is composed of a low temperature dewar pipe vacuum plugging male port 5, a low temperature dewar pipe vacuum plugging female port 7, a connecting flange 4, and an electric field equalizing plate 3.
  • the low temperature Dewar tube vacuum plug male port 5 is connected through the connecting flange 4 and the low temperature Dewar tube vacuum plug female port 7 to form a low temperature dewar pipe joint.
  • Two semicircular electric field equalizing plates 3 are fastened to the outside of the connecting flange 4 and welded as a whole.
  • the low temperature DUW connector and the electric field equalizing plate together form a low temperature Dewar connection.
  • the superconducting cable insulation system connecting part comprises a semi-conductive shielding layer 16 in a multi-section connecting device of a high-temperature superconducting cable, a high-temperature superconducting cable multi-section connecting device insulating layer 14, a high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15,
  • the stress control layer 23, the high-temperature superconducting cable multi-section connecting device metal shielding layer 21, and the high-temperature superconducting cable multi-section connecting device protective layer 17 are composed.
  • High-temperature superconducting cable multi-section connection device The electrical shield 16 is placed in the innermost layer and wrapped around the outer surface of the low temperature Dewar connection.
  • the high temperature superconducting cable multi-segment connecting device insulation layer 14 is wrapped around the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable.
  • the stress control layer 21 is wrapped or sheathed on the outer layer of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 lap joints.
  • the high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15 is wrapped around the high-temperature superconducting cable multi-section connecting device insulating layer 14 and the stress control layer 23.
  • the high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is wrapped around the outer semi-conductive shielding layer 13 of the multi-section connecting device of the high-temperature superconducting cable, and the outermost layer is the multi-section connecting device protective layer 17 of the high-temperature superconducting cable.
  • the multi-section connecting device of the high-temperature superconducting cable of the invention comprises a transition copper metal end 18, an energizing conductor compensation cord 19, an energizing conductor crimping terminal 20, a low temperature dewar tube vacuum plugging male port 5, a low temperature du Tile tube vacuum plug female port 7, low temperature gasket 8, connecting flange 4, electric field equalizing plate 3, high temperature superconducting cable multi-section connecting device semi-conductive shielding layer 16, high temperature superconducting cable multi-section connecting device insulation layer 14, high temperature The superconducting cable multi-section connecting device outer semi-conductive shielding layer 15, the stress control layer 23, the high-temperature superconducting cable multi-section connecting device metal shielding layer 25, the high-temperature superconducting cable multi-section connecting device protective layer 17.
  • Two high-temperature superconducting cable energizing conductors 9 are respectively placed in the left and right two low temperature dewar tubes 1, and two high-temperature superconducting cable energizing conductors 9 pass through the transition copper metal end 18, the energizing conductor compensation cord 19, and the energizing conductor crimping Terminals 20 are connected together.
  • the low temperature gasket 8 is set on the end of the low temperature Dewar tube vacuum plugging male port 5, and the low temperature Dewar tube vacuum plugging male port 5 is inserted in the low temperature Dewar tube vacuum plug female port 7, the low temperature Dewar tube
  • the vacuum plug male port 5 is connected by a connecting flange 4 and a low temperature Dewar vacuum plug female port 7.
  • the two semicircular electric field equalizing plates 3 are fastened to the outside of the connecting flange 4 and welded as a whole.
  • the low temperature Dewar tube vacuum plug male port 5 is inserted in the low temperature Dewar tube vacuum plug female port 7, the low temperature Dewar tube vacuum plug male port 5 through the connecting flange 4 and the low temperature Dewar tube vacuum plug female port 7 are joined together to form a low temperature Dewar connector.
  • the low temperature Dewar pipe joint and the electric field equalizing plate 3 together form a low temperature Dewar pipe connection section.
  • the semi-conductive shielding layer 16 of the high-temperature superconducting cable multi-segment connecting device is wrapped around the outer surface of the low temperature Dewar pipe connecting section.
  • the high temperature superconducting cable multi-segment connecting device insulation layer 14 is wrapped around the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable.
  • the stress control layer 23 is wrapped or packaged on the outer surface of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, and the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 Docking place.
  • the semiconductive shield layer 15 is wrapped around the high temperature superconducting cable multi-segment connection device insulation layer 14 and the stress control layer 23.
  • the high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is wrapped around the outer semi-conductive shielding layer 21 of the multi-stage connecting device of the high-temperature superconducting cable, and the outermost layer is the multi-section connecting device protective layer 17 of the high-temperature superconducting cable.
  • the semi-conductive shielding layer 10 of the high-temperature superconducting cable is wrapped on the outer surface of the low temperature Dewar tube 1.
  • the high temperature superconducting cable body insulation layer 11 is wrapped around the outer surface of the semiconductive shielding layer 10 in the high temperature superconducting cable body.
  • the high temperature superconducting cable outer semiconductive shield layer 13 is wrapped around the outer layer of the high temperature superconducting cable body insulation layer 11.
  • the high temperature superconducting cable body metal shield 25 is wrapped around the outer semiconductive shield 13 of the high temperature superconducting cable.
  • the high temperature superconducting cable body protective layer 12 is wrapped around the metal shield layer 25 of the high temperature superconducting cable body.
  • the semi-conductive shielding layer 16 of the high-temperature superconducting cable multi-section connecting device is connected with the semi-conductive shielding layer 10 of the high-temperature superconducting cable body, and the high-temperature superconducting cable multi-section connecting device insulating layer 14 is connected with the high-temperature superconducting cable body insulating layer 11
  • the outer semi-conductive shielding layer 15 of the multi-section connecting device of the guiding cable is connected with the semi-conductive shielding layer 13 of the high-temperature superconducting cable, and the metal shielding layer 21 of the multi-section connecting device of the high-temperature superconducting cable is connected with the metal shielding layer 25 of the high-temperature superconducting cable body, and the high temperature is super
  • the conductive cable multi-section connecting device protective layer 17 is connected to the high-temperature superconducting cable body protective layer 12.
  • the high-temperature superconducting cable multi-section connection device semi-conductive shielding layer 16 high-temperature superconducting cable multi-section connecting device insulation layer 14, high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15, high-temperature superconducting cable multi-section connecting device
  • the protective layer 17 is placed over the end of the superconducting cable.
  • the energizing conductors in the superconducting cable first move the energizing conductors in the superconducting cable, and respectively place the two energizing conductor crimping terminals 20 on the outside of the two transition copper metal ends 18, and then place the two ends of the energizing conductor compensating cord 19 respectively.
  • the end of the transition copper metal end 18 moves the energizing conductor crimping terminal 20 and is disposed outside the end of the energizing conductor compensating cord 19, and the transition copper metal tip 18 and the energizing conductor compensating cord 19 are passed through the crimping device.
  • the two energized conductors 9 are connected together by the energizing conductor crimping terminal 20 and the energizing conductor compensating cord 19. Move the energized conductor to the original position again to complete the energized conductor connection.
  • the superconducting cable body protective layer 12, the high temperature superconducting cable body metal shielding layer 25, the high temperature superconducting cable outer semiconductive shielding layer 13, the high temperature superconducting cable body insulating layer 11, the high temperature superconducting layer are sequentially stripped.
  • the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable is moved to the low-temperature dewar pipe connecting section, and the two ends of the low-temperature dewar pipe connecting section are overlapped with the semi-conductive shielding layer 10 in the high-temperature superconducting cable body, and heated.
  • the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable shrinks and encloses the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable on the outer surface of the connecting portion of the low-temperature Dewar pipe. Then, the high-temperature superconducting cable multi-segment connecting device insulation layer 14 is moved to the low-temperature dewar pipe connecting section, and the two ends of the low-temperature dewar pipe connecting section are overlapped with the high-temperature superconducting cable body insulating layer 11 to heat the high-temperature superconducting layer.
  • the cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable multi-segment connecting device insulating layer 14 are shrink-wrapped outside the semi-conductive shielding layer 16 in the multi-stage connecting device of the high-temperature superconducting cable.
  • the stress control layer 23 is wrapped or sheathed on the outer layer of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 lap joints.
  • the high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is set or wrapped around the outer layer of the semi-conductive shielding layer 13 of the high-temperature superconducting cable, and the high-temperature superconducting cable multi-section connecting device has two ends of the metal shielding layer 21 and the high-temperature superconducting The cable body metal shields 25 are joined together. Then, the high-temperature superconducting cable multi-section connecting device protective layer 17 is moved to the low-temperature dewar pipe connecting section, and the high-temperature superconducting cable multi-segment connecting device protective layer 17 is contracted and wrapped in the outermost layer of the low-temperature Dewar pipe connecting section.
  • the multi-section connecting device of the high-temperature superconducting cable of the invention can be used for solving the intermediate connection problem of the long-distance transmission multi-segment superconducting cable, and realizing the problem of connecting the electric conductor connection of the high-temperature superconducting cable, the connection of the low temperature dewar pipe and the insulation system. If the superconducting cable energizing conductor is a whole design, the high temperature superconducting cable multi-segment connecting device of the invention can also realize the single connection of the low temperature dewar tube and the insulating system.
  • the superconducting cable energizing conductor, the low temperature dewar tube and the insulation system can be respectively connected as a whole body, thereby realizing long-distance power transmission with a high temperature superconducting cable.

Abstract

A high temperature super-conducting cable multi-segment connection device: two high temperature super-conducting cable powered conductors are connected to a powered conductor crimp terminal (20) via a transitional copper metal end head and a powered conductor compensation flexible wire (19); a low temperature Dewar tube vacuum inserting male plug (5) is inserted into a low temperature Dewar tube vacuum inserting female socket (7); a semi-conduction shielding layer (16) in the high temperature super-conducting cable multi-segment connection device is connected to a semi-conduction shielding layer (10) in a high temperature super-conducting cable body; the insulation layer (14) of the high temperature super-conducting cable multi-segment connection device is connected to the insulation layer (11) of the high temperature super-conducting cable body; a semi-conduction shielding layer (15) outside the high temperature super-conducting cable multi-segment connection device is connected to a semi-conduction shielding layer (13) outside the high temperature super-conducting cable body; the metallic shielding layer (21) of the high temperature super-conducting cable multi-segment connection device is connected to the metallic shielding layer (25) of the high temperature super-conducting cable body; and the protective layer (17) of the high temperature super-conducting cable multi-segment connection device is connected to a protective layer (12) of the high temperature super-conducting cable body. The high temperature super-conducting cable multi-segment connection device solves the technical problems such as long distance power transmission multi-segment super-conducting cable intermediate connection, high temperature super-conducting cable powered conductor connection, low temperature Dewar tube connection, insulation system connection and the like.

Description

高温超导电缆多段连接装置 技术领域  High-temperature superconducting cable multi-section connecting device
本发明涉及一种高温超导电缆多段连接装置， 特别涉及多段高温超导电缆的 低温杜瓦管连接、 通电导体连接和绝缘系统连接的装置。  The invention relates to a multi-section connecting device for a high-temperature superconducting cable, in particular to a device for connecting a low-temperature dewar pipe, a conducting conductor connection and an insulating system of a multi-stage high-temperature superconducting cable.
背景技术 高温超导电缆与常规电缆的区别是， 高温超导电缆采用了具有零电阻、大电 流传输特性的高温超导材料作为导体， 以价格低廉的液态氮作为冷却介质，其传 输容量是常规电缆的 3〜5倍， 具有传输容量大、 电磁污染小、 损耗低等优点， 是实现大容量、低损耗输电的一个重要途径。高温超导电缆通电导体和低温杜瓦 管是高温超导电缆的重要组成部分，分别实现高位超导电缆大密度载流功能和低 温环境的保障功能。 限于包装运输、真空制备等客观条件和技术条件限制， 单根 超导电缆不能大长度加工和运输。长距离输电需要多段超导电缆的连接使用，超 导电缆的连接包括三部分即通电导体的连接、低温杜瓦管的连接和绝缘系统的连 接。 BACKGROUND OF THE INVENTION The difference between a high-temperature superconducting cable and a conventional cable is that a high-temperature superconducting cable uses a high-temperature superconducting material having zero resistance and high current transmission characteristics as a conductor, and a low-cost liquid nitrogen as a cooling medium, and its transmission capacity is conventional. 3 to 5 times of cable, it has the advantages of large transmission capacity, low electromagnetic pollution and low loss. It is an important way to realize high-capacity and low-loss transmission. The high-temperature superconducting cable energizing conductor and the low-temperature dewar tube are important components of the high-temperature superconducting cable, and realize the high-density superconducting cable high-density current-carrying function and the low-temperature environment. Limited to the objective conditions and technical conditions such as packaging and transportation, vacuum preparation, single superconducting cable can not be processed and transported in large length. Long-distance transmission requires the use of a multi-segment superconducting cable connection. The connection of the superconducting cable includes three parts, that is, the connection of the energized conductor, the connection of the low temperature dewar tube, and the connection of the insulation system.
超导电缆通电导体由通电导体支撑管、通电导体超导带材和过渡铜金属端头 三部分组成。通电导体超导带材绕包在通电导体支撑管上，通电导体支撑管两端 的端头分别焊接在过渡铜金属端头上，通电导体超导带材两端的端头分别焊接在 铜金属端头外表面上。  The superconducting cable energizing conductor is composed of a conducting conductor support tube, an energized conductor superconducting tape and a transition copper metal end. The energized conductor superconducting tape is wrapped around the energized conductor support tube, and the ends of the energized conductor support tube are respectively welded on the transition copper metal end, and the ends of the energized conductor superconducting strip are respectively welded to the copper metal end. On the outer surface.
低温杜瓦管用于向通电导体提供低温保障， 由两个同心的不锈钢组成， 内外 管夹层间绕包有多层超级绝热材料，夹层设计为高真空。低温杜瓦管两端分别为 公口、 母口设计。  The low temperature Dewar tube is used to provide low temperature protection to the energized conductor. It consists of two concentric stainless steels. The inner and outer tube sandwiches are wrapped with multiple layers of superinsulating material, and the interlayer is designed for high vacuum. The two ends of the low temperature Dewar tube are designed for the male and female ports respectively.
超导电缆绝缘系统包括内半导电层、绝缘层、外半导电层、金属屏蔽层和保 护层。绝缘系统位于超导电缆低温杜瓦管的外层。相对应， 高温超导电缆多段连 接装置中绝缘系统同样包括内半导电层、 绝缘层、 外半导电层、 金属屏蔽层， 保 护层。 超导电缆的应用尚处于工程示范阶段，对于长距离输电中多根超导电缆的连 接问题涉及较少。 专利 CN1628400 "电缆接头"提出一种是用于多芯小电缆的连 接。专利 CN2638309提出一种电缆连接装置，但主要用于汽车用电线的连接。《高 电压技术》 2007， vol 33， No 12等文献 " l lOkV国桥线电缆接头故障分析及处 理"涉及一种电缆接头， 其结构采用套管压接型接头， 其原理是采用铜套管将两 个电缆导体端头套入套管后， 通过压接设备将其挤压变形连接一起。 The superconducting cable insulation system includes an inner semiconductive layer, an insulating layer, an outer semiconductive layer, a metal shielding layer and a protective layer. The insulation system is located on the outer layer of the superconducting cable of the superconducting cable. Correspondingly, the insulation system of the multi-section connecting device of the high-temperature superconducting cable also includes an inner semi-conductive layer, an insulating layer, an outer semi-conductive layer, a metal shielding layer and a protective layer. The application of superconducting cables is still in the engineering demonstration stage, and there are fewer problems in connection with multiple superconducting cables in long-distance transmission. The patent CN1628400 "cable connector" proposes a connection for a multi-core small cable. Patent CN2638309 proposes a cable connection device, but is mainly used for the connection of electric wires for automobiles. "High Voltage Technology" 2007, vol 33, No 12 and other documents "l lOkV national bridge cable joint failure analysis and treatment" involves a cable joint, the structure of which uses a sleeve crimp joint, the principle is to use copper sleeve After the two cable conductor ends are put into the sleeve, they are pressed and deformed together by a crimping device.
发明内容 Summary of the invention
本发明的目的是解决长距离输电多段超导电缆中间连接问题，提出一种高温 超导电缆中间连接装置， 以解决高温超导电缆通电导体连接、低温杜瓦管连接和 绝缘系统连接问题。  The object of the present invention is to solve the problem of intermediate connection of long-distance transmission multi-segment superconducting cable, and propose a high-temperature superconducting cable intermediate connection device to solve the problem of high-temperature superconducting cable energizing conductor connection, low-temperature dewar pipe connection and insulation system connection.
本发明根据超导电缆结构特点，提出一种高温超导电缆多段连接装置，通过 该装置分别将超导电缆通电导体、低温杜瓦管和绝缘系统连接为整体， 从而实现 以高温超导电缆进行长距离输电。本发明高温超导电缆多段连接装置可实现多根 高温超导电缆的整体连接。如果超导电缆通电导体为整根设计，本发明高温超导 电缆多段连接装置还可实现低温杜瓦管和绝缘系统的单项连接。  According to the structural characteristics of the superconducting cable, the invention provides a multi-segment connection device for a high-temperature superconducting cable, through which the superconducting cable current conductor, the low temperature dewar tube and the insulation system are respectively connected as a whole, thereby realizing the high temperature superconducting cable. Long distance transmission. The multi-section connecting device of the high-temperature superconducting cable of the invention can realize the integral connection of a plurality of high-temperature superconducting cables. If the superconducting cable energizing conductor is a whole design, the high temperature superconducting cable multi-segment connecting device of the invention can also realize the single connection of the low temperature dewar tube and the insulating system.
本发明高温超导电缆多段连接装置包括三个连接部分：超导电缆通电导体连 接部分、超导电缆低温杜瓦管连接段和超导电缆绝缘系统连接部分。超导电缆通 电导体连接部分置于超导电缆低温杜瓦管内，超导电缆绝缘系统连接部分位于超 导电缆低温杜瓦管的外表面。  The multi-section connecting device of the high-temperature superconducting cable of the invention comprises three connecting parts: a connecting portion of the superconducting cable energizing conductor, a connecting portion of the superconducting cable low temperature dewar pipe and a connecting portion of the superconducting cable insulating system. The connecting portion of the superconducting cable through the electrical conductor is placed in the low temperature dewar tube of the superconducting cable, and the connecting portion of the superconducting cable insulation system is located on the outer surface of the supercritical dewar tube of the superconducting cable.
所述的超导电缆通电导体连接部分由通电导体补偿软线、 过渡铜金属端头、 通电导体压接端子组成， 通电导体补偿软线端部置于过渡铜金属端头端部外面， 通电导体压接端子套装于通电导体补偿软线的端部外面。  The superconducting cable energizing conductor connecting portion is composed of an energizing conductor compensating cord, a transition copper metal end, and an energizing conductor crimping terminal, and the end of the energizing conductor compensating cord is placed outside the end of the transition copper metal end, and the conducting conductor The crimp terminal is placed outside the end of the energized conductor compensation cord.
所述的超导电缆低温杜瓦管连接段由低温杜瓦管真空插接公口、低温杜瓦管 真空插接母口、连接法兰、 电场均压板组成。低温杜瓦管真空插接公口通过连接 法兰和低温杜瓦管真空插接母口连接在一起， 构成低温杜瓦管连接体。两个半圆 形的电场均压板扣装在连接法兰外面并焊接为整体。低温杜瓦管连接体和所述的 电场均压板共同构成低温杜瓦管连接段。  The superconducting cable low temperature dewar pipe connecting section is composed of a low temperature dewar pipe vacuum plugging male port, a low temperature dewar pipe vacuum plugging female port, a connecting flange, and an electric field equalizing plate. The low temperature Dewar vacuum plug male port is connected through a connecting flange and a low temperature Dewar vacuum plug female port to form a low temperature Dewar connector. Two semi-circular electric field equalizing plates are fastened to the outside of the connecting flange and welded as a whole. The low temperature Dewar connector and the electric field equalizing plate together form a low temperature Dewar connection.
所述的超导电缆绝缘系统连接部分由高温超导电缆多段连接装置内半导电 屏蔽层、高温超导电缆多段连接装置绝缘层、高温超导电缆多段连接装置外半导 电屏蔽层、应力控制层、 高温超导电缆多段连接装置金属屏蔽层、 高温超导电缆 多段连接装置保护层组成。高温超导电缆多段连接装置内半导电屏蔽层置于最里 层，包裹在低温杜瓦管连接段的外表面。高温超导电缆多段连接装置绝缘层包裹 在高温超导电缆多段连接装置内半导电屏蔽层外面。应力控制层绕包或套装在高 温超导电缆多段连接装置绝缘层的外层，应力控制层的轴向位置在高温超导电缆 多段连接装置绝缘层与高温超导电缆本体绝缘层搭接处。高温超导电缆多段连接 装置外半导电屏蔽层包裹在高温超导电缆多段连接装置绝缘层和应力控制层外 面。高温超导电缆多段连接装置金属屏蔽层包裹在高温超导电缆多段连接装置外 半导电屏蔽层外面， 最外层是高温超导电缆多段连接装置保护层。 The connecting portion of the superconducting cable insulation system is composed of a semi-conductive shielding layer in a multi-section connecting device of a high-temperature superconducting cable, a multi-section connecting device insulating layer of a high-temperature superconducting cable, and a multi-section connecting device of a high-temperature superconducting cable. Electrical shielding layer, stress control layer, high-temperature superconducting cable multi-section connecting device metal shielding layer, high-temperature superconducting cable multi-section connecting device protective layer. The semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable is placed in the innermost layer and wrapped on the outer surface of the low temperature Dewar pipe connecting section. The high-temperature superconducting cable multi-section connecting device insulation layer is wrapped outside the semi-conductive shielding layer in the multi-section connecting device of the high-temperature superconducting cable. The stress control layer is wrapped or packaged on the outer layer of the insulating layer of the multi-section connecting device of the high-temperature superconducting cable, and the axial position of the stress control layer is overlapped between the insulating layer of the multi-section connecting device of the high-temperature superconducting cable and the insulating layer of the high-temperature superconducting cable body. The outer semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable is wrapped around the insulating layer and the stress control layer of the multi-section connecting device of the high-temperature superconducting cable. The metal shield of the multi-section connecting device of the high-temperature superconducting cable is wrapped outside the semi-conductive shielding layer of the multi-section connecting device of the high-temperature superconducting cable, and the outermost layer is the protective layer of the multi-section connecting device of the high-temperature superconducting cable.
连接高温超导电缆时，两个超导电缆通电导体分别通过压接端子与通电导体 补偿软线的两端连接在一起 一根超导电缆低温杜瓦管真空插接公口插接在一个 超导电缆低温杜瓦管真空插接母口内； 高温超导电缆多段连接装置内屏蔽层、高 温超导电缆多段连接装置绝缘层、高温超导电缆多段连接装置外半导电屏蔽层和 高温超导电缆多段连接装置金属屏蔽层、高温超导电缆多段连接装置保护层分别 同超导电缆本体绝缘系统的内半导电屏蔽层、绝缘层、外半导电屏蔽层、金属屏 蔽层和保护层连接在一起。  When connecting the high-temperature superconducting cable, the two superconducting cable energizing conductors are respectively connected to the two ends of the energizing conductor compensation cord through the crimping terminal, and a superconducting cable is connected to the low temperature dewar tube vacuum plugging male port in a super Conductor cable low temperature dewar tube vacuum plug female port; high temperature superconducting cable multi-section connecting device inner shield layer, high temperature superconducting cable multi-section connecting device insulation layer, high temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer and high temperature superconducting cable The multi-section connecting device metal shielding layer and the high-temperature superconducting cable multi-section connecting device protective layer are respectively connected with the inner semi-conductive shielding layer, the insulating layer, the outer semi-conductive shielding layer, the metal shielding layer and the protective layer of the superconducting cable body insulation system.
所述的通电导体补偿软线由多根编制或绞制在一起的铜软线组成，补偿软线 的数量可根据超导电缆载流量大小适度调整。  The energized conductor compensating cord is composed of a plurality of copper cords that are braided or twisted together, and the number of compensating cords can be appropriately adjusted according to the current carrying capacity of the superconducting cable.
所述的低温杜瓦管真空插接公口、低温杜瓦管真空插接母口均设计为真空夹 层。 低温杜瓦管真空插接公口插接在低温杜瓦管真空插接母口内。  The low temperature dewar tube vacuum plugging male port and the low temperature dewar tube vacuum plugging female port are all designed as vacuum sandwich layers. The low temperature Dewar tube vacuum plug male port is inserted in the low temperature Dewar tube vacuum plug female port.
所述的高温超导电缆多段连接装置内半导电屏蔽层、高温超导电缆多段连接 装置绝缘层、高温超导电缆多段连接装置外半导电屏蔽层、高温超导电缆多段连 接装置保护层均为热缩型管材。  The high-temperature superconducting cable multi-section connecting device semi-conductive shielding layer, high-temperature superconducting cable multi-section connecting device insulation layer, high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer, high-temperature superconducting cable multi-section connecting device protective layer are Heat shrinkable tubing.
所述的应力控制层由应力控制带绕包或者应力锥组成，应力控制层宽度不超 过 200  The stress control layer is composed of a stress control tape wrapping or a stress cone, and the stress control layer width is not more than 200
所述的高温超导电缆多段连接装置金属屏蔽层由金属铜网或金属铜带组成。 附图说明  The metal shield layer of the multi-section connecting device of the high-temperature superconducting cable is composed of a metal copper mesh or a metal copper strip. DRAWINGS
图 la b c分别为高温超导电缆多段连接装置示意图， 其中图 la为总图， 图 lb为超导电缆低温杜瓦管真空插接公口图，图 lc为超导电缆低温杜瓦管真空 插接母口图； Figure la bc is a schematic diagram of a multi-stage connection device for a high-temperature superconducting cable, wherein Figure la is a general view, Figure lb is a vacuum port of a superconducting cable low temperature dewar tube, and Figure lc is a superconducting cable low temperature dewar tube vacuum Plug in the female port diagram;
图中： 1低温杜瓦管、 2超导电缆低温杜瓦管真空插接公口真空层、 3电场 均压板、 4连接法兰、 5超导电缆低温杜瓦管真空插接公口、 6超导电缆低温杜 瓦管真空插接母口真空层、 7超导电缆低温杜瓦管真空插接母口、 8低温密封垫、 9通电导体、 10高温超导电缆本体内半导电屏蔽层、 11 高温超导电缆本体绝缘 层、 12高温超导电缆本体保护层、 13高温超导电缆本体外半导电屏蔽层、 14高 温超导电缆多段连接装置绝缘层、 15 高温超导电缆多段连接装置外半导电屏蔽 层、 16高温超导电缆多段连接装置内半导电屏蔽层、 17高温超导电缆多段连接 装置保护层、 18过渡铜金属端头、 19通电导体补偿软线、 20通电导体压接端子、 21高温超导电缆多段连接装置金属屏蔽层、 22通电导体超导带材、 23应力控制 层、 24、 通电导体支撑管、 25高温超导电缆本体金属屏蔽层。  In the figure: 1 low temperature dewar tube, 2 superconducting cable low temperature dewar tube vacuum plugging male port vacuum layer, 3 electric field equalizing plate, 4 connecting flange, 5 superconducting cable low temperature dewar tube vacuum plugging male port, 6 Superconducting cable low temperature dewar tube vacuum plug female vacuum layer, 7 superconducting cable low temperature dewar tube vacuum plug female port, 8 low temperature gasket, 9 energized conductor, 10 high temperature superconducting cable body semi-conductive shielding layer, 11 high temperature superconducting cable body insulation layer, 12 high temperature superconducting cable body protection layer, 13 high temperature superconducting cable outer semiconductive shielding layer, 14 high temperature superconducting cable multi-section connecting device insulation layer, 15 high temperature superconducting cable multi-section connecting device Semi-conductive shielding layer, 16-high-temperature superconducting cable multi-section connecting device semi-conductive shielding layer, 17 high-temperature superconducting cable multi-section connecting device protective layer, 18 transition copper metal end, 19 energizing conductor compensation cord, 20 energizing conductor crimping terminal , 21 high temperature superconducting cable multi-section connection device metal shield, 22 energized conductor superconducting tape, 23 stress control layer, 24, energized conductor support tube, 25 high temperature superconducting cable body metal screen Cover.
具体实施方式 detailed description
下面结合附图和具体实施方式进一步说明本发明。  The invention will now be further described with reference to the drawings and specific embodiments.
本发明高温超导电缆多段连接装置包括三个连接部分：超导电缆通电导体连 接部分、超导电缆低温杜瓦管连接段和超导电缆绝缘系统连接部分。超导电缆通 电导体连接部分置于超导电缆低温杜瓦管内，超导电缆绝缘系统连接部分位于超 导电缆低温杜瓦管的外表面。  The multi-section connecting device of the high-temperature superconducting cable of the invention comprises three connecting parts: a connecting portion of the superconducting cable energizing conductor, a connecting portion of the superconducting cable low temperature dewar pipe and a connecting portion of the superconducting cable insulating system. The connecting portion of the superconducting cable through the electrical conductor is placed in the low temperature dewar tube of the superconducting cable, and the connecting portion of the superconducting cable insulation system is located on the outer surface of the supercritical dewar tube of the superconducting cable.
所述的超导电缆通电导体连接部分由通电导体补偿软线 19、 过渡铜金属端 头 23、 通电导体压接端子 20组成。 通电导体补偿软线 19端部置于过渡铜金属 端头 23端部外面，通电导体压接端子 20套装于通电导体补偿软线 19端部外面。  The superconducting cable energizing conductor connecting portion is composed of an energizing conductor compensating cord 19, a transition copper metal tip 23, and an energizing conductor crimping terminal 20. The end of the energized conductor compensating cord 19 is placed outside the end of the transition copper metal tip 23, and the energizing conductor crimping terminal 20 is placed outside the end of the energizing conductor compensating cord 19.
所述的超导电缆低温杜瓦管连接段由低温杜瓦管真空插接公口 5、低温杜瓦 管真空插接母口 7、 连接法兰 4、 电场均压板 3组成。 低温杜瓦管真空插接公口 5通过连接法兰 4和低温杜瓦管真空插接母口 7连接在一起， 构成低温杜瓦管连 接体。两个半圆形的电场均压板 3扣装在连接法兰 4外面并焊接为整体。低温杜 瓦管连接体和所述的电场均压板共同构成低温杜瓦管连接段。  The superconducting cable low temperature dewar pipe connecting section is composed of a low temperature dewar pipe vacuum plugging male port 5, a low temperature dewar pipe vacuum plugging female port 7, a connecting flange 4, and an electric field equalizing plate 3. The low temperature Dewar tube vacuum plug male port 5 is connected through the connecting flange 4 and the low temperature Dewar tube vacuum plug female port 7 to form a low temperature dewar pipe joint. Two semicircular electric field equalizing plates 3 are fastened to the outside of the connecting flange 4 and welded as a whole. The low temperature DUW connector and the electric field equalizing plate together form a low temperature Dewar connection.
所述的超导电缆绝缘系统连接部分由高温超导电缆多段连接装置内半导电 屏蔽层 16、 高温超导电缆多段连接装置绝缘层 14、 高温超导电缆多段连接装置 外半导电屏蔽层 15、应力控制层 23、高温超导电缆多段连接装置金属屏蔽层 21、 高温超导电缆多段连接装置保护层 17组成。 高温超导电缆多段连接装置内半导 电屏蔽层 16置于最里层， 包裹在低温杜瓦管连接段的外表面。 高温超导电缆多 段连接装置绝缘层 14包裹在高温超导电缆多段连接装置内半导电屏蔽层 16外 面。 应力控制层 21绕包或套装在高温超导电缆多段连接装置绝缘层 14的外层， 应力控制层 23的轴向位置在高温超导电缆多段连接装置绝缘层 14与高温超导电 缆本体绝缘层 11搭接处。高温超导电缆多段连接装置外半导电屏蔽层 15包裹在 高温超导电缆多段连接装置绝缘层 14和应力控制层 23外面。高温超导电缆多段 连接装置金属屏蔽层 21 包裹在高温超导电缆多段连接装置外半导电屏蔽层 13 外面， 最外层是高温超导电缆多段连接装置保护层 17。 The superconducting cable insulation system connecting part comprises a semi-conductive shielding layer 16 in a multi-section connecting device of a high-temperature superconducting cable, a high-temperature superconducting cable multi-section connecting device insulating layer 14, a high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15, The stress control layer 23, the high-temperature superconducting cable multi-section connecting device metal shielding layer 21, and the high-temperature superconducting cable multi-section connecting device protective layer 17 are composed. High-temperature superconducting cable multi-section connection device The electrical shield 16 is placed in the innermost layer and wrapped around the outer surface of the low temperature Dewar connection. The high temperature superconducting cable multi-segment connecting device insulation layer 14 is wrapped around the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable. The stress control layer 21 is wrapped or sheathed on the outer layer of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 lap joints. The high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15 is wrapped around the high-temperature superconducting cable multi-section connecting device insulating layer 14 and the stress control layer 23. The high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is wrapped around the outer semi-conductive shielding layer 13 of the multi-section connecting device of the high-temperature superconducting cable, and the outermost layer is the multi-section connecting device protective layer 17 of the high-temperature superconducting cable.
如图 1所示， 本发明高温超导电缆多段连接装置包括过渡铜金属端头 18、 通电导体补偿软线 19、 通电导体压接端子 20、 低温杜瓦管真空插接公口 5、 低 温杜瓦管真空插接母口 7、 低温密封垫 8、 连接法兰 4、 电场均压板 3、 高温超导 电缆多段连接装置内半导电屏蔽层 16、 高温超导电缆多段连接装置绝缘层 14、 高温超导电缆多段连接装置外半导电屏蔽层 15、 应力控制层 23、 高温超导电缆 多段连接装置金属屏蔽层 25、 高温超导电缆多段连接装置保护层 17。  As shown in FIG. 1, the multi-section connecting device of the high-temperature superconducting cable of the invention comprises a transition copper metal end 18, an energizing conductor compensation cord 19, an energizing conductor crimping terminal 20, a low temperature dewar tube vacuum plugging male port 5, a low temperature du Tile tube vacuum plug female port 7, low temperature gasket 8, connecting flange 4, electric field equalizing plate 3, high temperature superconducting cable multi-section connecting device semi-conductive shielding layer 16, high temperature superconducting cable multi-section connecting device insulation layer 14, high temperature The superconducting cable multi-section connecting device outer semi-conductive shielding layer 15, the stress control layer 23, the high-temperature superconducting cable multi-section connecting device metal shielding layer 25, the high-temperature superconducting cable multi-section connecting device protective layer 17.
两个高温超导电缆通电导体 9分别置于左右两个低温杜瓦管 1 内， 两个高 温超导电缆通电导体 9通过过渡铜金属端头 18、 通电导体补偿软线 19、 通电导 体压接端子 20连接在一起。  Two high-temperature superconducting cable energizing conductors 9 are respectively placed in the left and right two low temperature dewar tubes 1, and two high-temperature superconducting cable energizing conductors 9 pass through the transition copper metal end 18, the energizing conductor compensation cord 19, and the energizing conductor crimping Terminals 20 are connected together.
低温密封垫 8套装在低温杜瓦管真空插接公口 5的端头上， 低温杜瓦管真 空插接公口 5插接在低温杜瓦管真空插接母口 7内， 低温杜瓦管真空插接公口 5 通过连接法兰 4和低温杜瓦管真空插接母口 7连接在一起。两个半圆形的电场均 压板 3扣装在连接法兰 4外面并焊接为整体。低温杜瓦管真空插接公口 5插接在 低温杜瓦管真空插接母口 7内，低温杜瓦管真空插接公口 5通过连接法兰 4和低 温杜瓦管真空插接母口 7连接在一起，共同构成低温杜瓦管连接体。低温杜瓦管 连接体和所述的电场均压板 3共同构成低温杜瓦管连接段。  The low temperature gasket 8 is set on the end of the low temperature Dewar tube vacuum plugging male port 5, and the low temperature Dewar tube vacuum plugging male port 5 is inserted in the low temperature Dewar tube vacuum plug female port 7, the low temperature Dewar tube The vacuum plug male port 5 is connected by a connecting flange 4 and a low temperature Dewar vacuum plug female port 7. The two semicircular electric field equalizing plates 3 are fastened to the outside of the connecting flange 4 and welded as a whole. The low temperature Dewar tube vacuum plug male port 5 is inserted in the low temperature Dewar tube vacuum plug female port 7, the low temperature Dewar tube vacuum plug male port 5 through the connecting flange 4 and the low temperature Dewar tube vacuum plug female port 7 are joined together to form a low temperature Dewar connector. The low temperature Dewar pipe joint and the electric field equalizing plate 3 together form a low temperature Dewar pipe connection section.
高温超导电缆多段连接装置内半导电屏蔽层 16包裹在低温杜瓦管连接段的 外表面。 高温超导电缆多段连接装置绝缘层 14包裹在高温超导电缆多段连接装 置内半导电屏蔽层 16外面。应力控制层 23绕包或套装在高温超导电缆多段连接 装置绝缘层 14的外面，应力控制层 23的轴向位置在高温超导电缆多段连接装置 绝缘层 14与高温超导电缆本体绝缘层 11搭接处。高温超导电缆多段连接装置外 半导电屏蔽层 15包裹在高温超导电缆多段连接装置绝缘层 14和应力控制层 23 外面。 高温超导电缆多段连接装置金属屏蔽层 21包裹在高温超导电缆多段连接 装置外半导电屏蔽层 21外面， 最外层是高温超导电缆多段连接装置保护层 17。 The semi-conductive shielding layer 16 of the high-temperature superconducting cable multi-segment connecting device is wrapped around the outer surface of the low temperature Dewar pipe connecting section. The high temperature superconducting cable multi-segment connecting device insulation layer 14 is wrapped around the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable. The stress control layer 23 is wrapped or packaged on the outer surface of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, and the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 Docking place. High temperature superconducting cable outside the multi-section connection device The semiconductive shield layer 15 is wrapped around the high temperature superconducting cable multi-segment connection device insulation layer 14 and the stress control layer 23. The high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is wrapped around the outer semi-conductive shielding layer 21 of the multi-stage connecting device of the high-temperature superconducting cable, and the outermost layer is the multi-section connecting device protective layer 17 of the high-temperature superconducting cable.
高温超导电缆本体内半导电屏蔽层 10包裹在低温杜瓦管 1外表面。 高温超 导电缆本体绝缘层 11包裹在高温超导电缆本体内半导电屏蔽层 10外表面。高温 超导电缆本体外半导电屏蔽层 13包裹在高温超导电缆本体绝缘层 11外面。高温 超导电缆本体金属屏蔽层 25包裹在高温超导电缆本体外半导电屏蔽层 13外面。 高温超导电缆本体保护层 12包裹在高温超导电缆本体金属屏蔽层 25外面。  The semi-conductive shielding layer 10 of the high-temperature superconducting cable is wrapped on the outer surface of the low temperature Dewar tube 1. The high temperature superconducting cable body insulation layer 11 is wrapped around the outer surface of the semiconductive shielding layer 10 in the high temperature superconducting cable body. The high temperature superconducting cable outer semiconductive shield layer 13 is wrapped around the outer layer of the high temperature superconducting cable body insulation layer 11. The high temperature superconducting cable body metal shield 25 is wrapped around the outer semiconductive shield 13 of the high temperature superconducting cable. The high temperature superconducting cable body protective layer 12 is wrapped around the metal shield layer 25 of the high temperature superconducting cable body.
高温超导电缆多段连接装置内半导电屏蔽层 16与高温超导电缆本体内半导 电屏蔽层 10连接，高温超导电缆多段连接装置绝缘层 14与高温超导电缆本体绝 缘层 11连接，高温超导电缆多段连接装置外半导电屏蔽层 15与高温超导电缆本 体外半导电屏蔽层 13连接，高温超导电缆多段连接装置金属屏蔽层 21与高温超 导电缆本体金属屏蔽层 25连接，高温超导电缆多段连接装置保护层 17与高温超 导电缆本体保护层 12连接。  The semi-conductive shielding layer 16 of the high-temperature superconducting cable multi-section connecting device is connected with the semi-conductive shielding layer 10 of the high-temperature superconducting cable body, and the high-temperature superconducting cable multi-section connecting device insulating layer 14 is connected with the high-temperature superconducting cable body insulating layer 11 The outer semi-conductive shielding layer 15 of the multi-section connecting device of the guiding cable is connected with the semi-conductive shielding layer 13 of the high-temperature superconducting cable, and the metal shielding layer 21 of the multi-section connecting device of the high-temperature superconducting cable is connected with the metal shielding layer 25 of the high-temperature superconducting cable body, and the high temperature is super The conductive cable multi-section connecting device protective layer 17 is connected to the high-temperature superconducting cable body protective layer 12.
安装前， 把高温超导电缆多段连接装置内半导电屏蔽层 16、 高温超导电缆 多段连接装置绝缘层 14、 高温超导电缆多段连接装置外半导电屏蔽层 15、 高温 超导电缆多段连接装置保护层 17套装在超导电缆端头。  Before installation, the high-temperature superconducting cable multi-section connection device semi-conductive shielding layer 16, high-temperature superconducting cable multi-section connecting device insulation layer 14, high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer 15, high-temperature superconducting cable multi-section connecting device The protective layer 17 is placed over the end of the superconducting cable.
安装时， 首先移动超导电缆内的通电导体， 分别把两个通电导体压接端子 20套装在两个过渡铜金属端头 18外面， 然后把通电导体补偿软线 19的两端分 别置于两个过渡铜金属端头 18的端部，移动通电导体压接端子 20并套装在通电 导体补偿软线 19的端部外面， 通过压接设备把过渡铜金属端头 18、 通电导体补 偿软线 19压接在一起， 两个通电导体 9通过通电导体压接端子 20、 通电导体补 偿软线 19连接在一起。 再次移动通电导体至原始位置， 完成通电导体连接。  During installation, first move the energizing conductors in the superconducting cable, and respectively place the two energizing conductor crimping terminals 20 on the outside of the two transition copper metal ends 18, and then place the two ends of the energizing conductor compensating cord 19 respectively. The end of the transition copper metal end 18 moves the energizing conductor crimping terminal 20 and is disposed outside the end of the energizing conductor compensating cord 19, and the transition copper metal tip 18 and the energizing conductor compensating cord 19 are passed through the crimping device. Pressed together, the two energized conductors 9 are connected together by the energizing conductor crimping terminal 20 and the energizing conductor compensating cord 19. Move the energized conductor to the original position again to complete the energized conductor connection.
其次，把将低温密封垫 8套装在低温杜瓦管真空插接公口 5端头上， 再把低 温杜瓦管真空插接公口 5插接在低温杜瓦管真空插接母口 7内并通过连接法兰 4 把两者连接在一起。把两个半圆形电场均压板 3扣装在连接法兰 4外， 并将两个 半圆形电场均压板 3焊接为整体， 形成低温杜瓦管连接段。  Secondly, put the low temperature gasket 8 on the end of the low temperature Dewar tube vacuum plugging male port 5, and then insert the low temperature Dewar tube vacuum plug male port 5 into the low temperature Dewar tube vacuum plug female port 7. And connect the two together by the connecting flange 4. The two semicircular electric field equalizing plates 3 are fastened outside the connecting flange 4, and the two semicircular electric field equalizing plates 3 are welded as a whole to form a low temperature dewar pipe connecting section.
最后， 依次剥开超导电缆本体保护层 12、高温超导电缆本体金属屏蔽层 25、 高温超导电缆本体外半导电屏蔽层 13、 高温超导电缆本体绝缘层 11、 高温超导 电缆本体内半导电屏蔽层 10。 将高温超导电缆多段连接装置内半导电屏蔽层 16 移至低温杜瓦管连接段，并使低温杜瓦管连接段的两端与高温超导电缆本体内半 导电屏蔽层 10搭接，加热高温超导电缆多段连接装置内半导电屏蔽层 16并使高 温超导电缆多段连接装置内半导电屏蔽层 16收缩包裹在低温杜瓦管连接段外表 面。 再将高温超导电缆多段连接装置绝缘层 14移至低温杜瓦管连接段， 并使低 温杜瓦管连接段的两端与高温超导电缆本体绝缘层 11搭接在一起， 加热高温超 导电缆多段连接装置绝缘层 14并使高温超导电缆多段连接装置绝缘层 14收缩包 裹在高温超导电缆多段连接装置内半导电屏蔽层 16的外面。应力控制层 23绕包 或套装在高温超导电缆多段连接装置绝缘层 14的外层，应力控制层 23的轴向位 置在高温超导电缆多段连接装置绝缘层 14与高温超导电缆本体绝缘层 11搭接 处。 将高温超导电缆多段连接装置外半导电屏蔽层 15移至低温杜瓦管连接段并 使高温超导电缆多段连接装置外半导电屏蔽层 15的两端与套装在超导电缆端头 高温超导电缆本体外半导电屏蔽层 13搭接。 高温超导电缆多段连接装置金属屏 蔽层 21套装或绕包在高温超导电缆本体外半导电屏蔽层 13的外层，高温超导电 缆多段连接装置金属屏蔽层 21 的两端分别和高温超导电缆本体金属屏蔽层 25 连接在一起。再将高温超导电缆多段连接装置保护层 17移至低温杜瓦管连接段， 加热并使高温超导电缆多段连接装置保护层 17收缩包裹在低温杜瓦管连接段最 外层。 Finally, the superconducting cable body protective layer 12, the high temperature superconducting cable body metal shielding layer 25, the high temperature superconducting cable outer semiconductive shielding layer 13, the high temperature superconducting cable body insulating layer 11, the high temperature superconducting layer are sequentially stripped. The semi-conductive shielding layer 10 in the cable body. The semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable is moved to the low-temperature dewar pipe connecting section, and the two ends of the low-temperature dewar pipe connecting section are overlapped with the semi-conductive shielding layer 10 in the high-temperature superconducting cable body, and heated. The semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable shrinks and encloses the semi-conductive shielding layer 16 in the multi-section connecting device of the high-temperature superconducting cable on the outer surface of the connecting portion of the low-temperature Dewar pipe. Then, the high-temperature superconducting cable multi-segment connecting device insulation layer 14 is moved to the low-temperature dewar pipe connecting section, and the two ends of the low-temperature dewar pipe connecting section are overlapped with the high-temperature superconducting cable body insulating layer 11 to heat the high-temperature superconducting layer. The cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable multi-segment connecting device insulating layer 14 are shrink-wrapped outside the semi-conductive shielding layer 16 in the multi-stage connecting device of the high-temperature superconducting cable. The stress control layer 23 is wrapped or sheathed on the outer layer of the high-temperature superconducting cable multi-segment connecting device insulation layer 14, the axial position of the stress control layer 23 is in the high-temperature superconducting cable multi-segment connecting device insulating layer 14 and the high-temperature superconducting cable body insulating layer 11 lap joints. Move the outer semi-conductive shielding layer 15 of the high-temperature superconducting cable multi-section connecting device to the low-temperature dewar pipe connecting section and make the high-temperature superconducting cable multi-segment connecting device outer semi-conductive shielding layer 15 and the high-temperature super set at the end of the superconducting cable The outer semiconductive shield layer 13 of the guide cable is overlapped. The high-temperature superconducting cable multi-section connecting device metal shielding layer 21 is set or wrapped around the outer layer of the semi-conductive shielding layer 13 of the high-temperature superconducting cable, and the high-temperature superconducting cable multi-section connecting device has two ends of the metal shielding layer 21 and the high-temperature superconducting The cable body metal shields 25 are joined together. Then, the high-temperature superconducting cable multi-section connecting device protective layer 17 is moved to the low-temperature dewar pipe connecting section, and the high-temperature superconducting cable multi-segment connecting device protective layer 17 is contracted and wrapped in the outermost layer of the low-temperature Dewar pipe connecting section.
本发明高温超导电缆多段连接装置可用于解决长距离输电多段超导电缆中 间连接问题， 实现高温超导电缆通电导体连接、低温杜瓦管连接和绝缘系统连接 问题。如果超导电缆通电导体为整根设计，本发明高温超导电缆多段连接装置还 可实现低温杜瓦管和绝缘系统的单项连接。  The multi-section connecting device of the high-temperature superconducting cable of the invention can be used for solving the intermediate connection problem of the long-distance transmission multi-segment superconducting cable, and realizing the problem of connecting the electric conductor connection of the high-temperature superconducting cable, the connection of the low temperature dewar pipe and the insulation system. If the superconducting cable energizing conductor is a whole design, the high temperature superconducting cable multi-segment connecting device of the invention can also realize the single connection of the low temperature dewar tube and the insulating system.
通过该装置可分别将超导电缆通电导体、 低温杜瓦管和绝缘系统连接为整 体， 从而实现以高温超导电缆进行长距离输电。  Through the device, the superconducting cable energizing conductor, the low temperature dewar tube and the insulation system can be respectively connected as a whole body, thereby realizing long-distance power transmission with a high temperature superconducting cable.

Claims

权 利 要 求 书 Claim
1、 一种高温超导电缆多段连接装置， 其特征在于， 所述的连接装置包括超导 电缆通电导体连接部分、超导电缆低温杜瓦管连接段和超导电缆绝缘系统连接部 分； 超导电缆通电导体连接部分置于超导电缆低温杜瓦管内，超导电缆绝缘系统 连接部分位于超导电缆低温杜瓦管的外表面；  A multi-segment connection device for a high-temperature superconducting cable, characterized in that: the connecting device comprises a connecting portion of a conducting conductor of a superconducting cable, a connecting portion of a superconducting cable of a superconducting cable and a connecting portion of a superconducting cable insulation system; The connecting portion of the cable energizing conductor is placed in the low temperature dewar tube of the superconducting cable, and the connecting portion of the superconducting cable insulation system is located on the outer surface of the superconducting cable of the superconducting cable;
所述的超导电缆通电导体连接部分由通电导体补偿软线 （19)、 过渡铜金属 端头 （23)、 通电导体压接端子 （20) 组成； 通电导体补偿软线 （19) 端部置于 过渡铜金属端头（23)端部外面， 通电导体压接端子（20)套装于通电导体补偿 软线的端部外面；  The superconducting cable energizing conductor connecting portion is composed of an energizing conductor compensating cord (19), a transition copper metal end (23), and an energizing conductor crimping terminal (20); the energizing conductor compensating cord (19) is disposed at the end Outside the end of the transition copper metal end (23), the energized conductor crimp terminal (20) is placed outside the end of the energized conductor compensation cord;
所述的超导电缆低温杜瓦管连接段由低温杜瓦管真空插接公口（5)、低温杜 瓦管真空插接母口 （7)、 连接法兰 （4)、 电场均压板 （3) 组成； 低温杜瓦管真 空插接公口 （5 ) 通过连接法兰 （4) 和低温杜瓦管真空插接母口 （7) 连接在一 起， 构成低温杜瓦管连接体； 两个半圆形的电场均压板（3)扣装在连接法兰（4) 外面并焊接为整体；低温杜瓦管连接体和所述的电场均压板共同构成低温杜瓦管 连接段；  The superconducting cable low temperature dewar pipe connecting section is connected by a low temperature dewar pipe vacuum plugging male port (5), a low temperature dewar pipe vacuum plugging female port (7), a connecting flange (4), an electric field equalizing plate ( 3) Composition; low temperature Dewar tube vacuum plug male port (5) is connected by a connecting flange (4) and a low temperature Dewar vacuum plug female port (7) to form a low temperature Dewar connector; The semicircular electric field equalizing plate (3) is fastened outside the connecting flange (4) and welded as a whole; the low temperature dewar pipe connecting body and the electric field equalizing plate together constitute a low temperature dewar pipe connecting section;
所述的超导电缆绝缘系统连接部分由高温超导电缆多段连接装置内半导电 屏蔽层（16)、 高温超导电缆多段连接装置绝缘层（14)、 高温超导电缆多段连接 装置外半导电屏蔽层（15)、 应力控制层（23)、 高温超导电缆多段连接装置金属 屏蔽层 （21 )、 高温超导电缆多段连接装置保护层 （17) 组成； 高温超导电缆多 段连接装置内半导电屏蔽层（16)置于最里层， 包裹在低温杜瓦管连接段的外表 面； 高温超导电缆多段连接装置绝缘层（14)包裹在高温超导电缆多段连接装置 内半导电屏蔽层（16)外面； 应力控制层（21 )绕包或套装在高温超导电缆多段 连接装置绝缘层（14) 的外层， 应力控制层（23) 的轴向位置在高温超导电缆多 段连接装置绝缘层 （14)与高温超导电缆本体绝缘层 （11 ) 的搭接处； 高温超导 电缆多段连接装置外半导电屏蔽层（15)包裹在高温超导电缆多段连接装置绝缘 层（14)和应力控制层（23)外面； 高温超导电缆多段连接装置金属屏蔽层（21 ) 包裹在高温超导电缆多段连接装置外半导电屏蔽层（13)外面， 最外层是高温超 导电缆多段连接装置保护层 （17)。  The connecting portion of the superconducting cable insulation system is composed of a semi-conductive shielding layer (16) in a multi-section connecting device of a high-temperature superconducting cable, a multi-segment connecting device insulating layer (14) of a high-temperature superconducting cable, and a multi-segment connecting device of a high-temperature superconducting cable. The shielding layer (15), the stress control layer (23), the high-temperature superconducting cable multi-section connecting device metal shielding layer (21), the high-temperature superconducting cable multi-section connecting device protective layer (17); the high temperature superconducting cable multi-section connecting device inner half The conductive shielding layer (16) is placed in the innermost layer and wrapped around the outer surface of the low temperature Dewar pipe connection section; the high temperature superconducting cable multi-section connecting device insulation layer (14) is wrapped in the semi-conductive shielding layer of the high-temperature superconducting cable multi-section connecting device (16) outside; the stress control layer (21) is wrapped or sheathed on the outer layer of the high-temperature superconducting cable multi-section connecting device insulation layer (14), the axial position of the stress control layer (23) is in the high-temperature superconducting cable multi-section connecting device The insulation layer (14) and the high temperature superconducting cable body insulation layer (11) overlap; the high temperature superconducting cable multi-section connection device outer semi-conductive shielding layer (15) wrapped in high temperature super Conductor cable multi-section connecting device insulation layer (14) and stress control layer (23) outside; high-temperature superconducting cable multi-section connecting device metal shielding layer (21) wrapped in the outer semi-conductive shielding layer (13) of the high-temperature superconducting cable multi-section connecting device The outermost layer is a multi-section connecting device protective layer of high temperature superconducting cable (17).
2、 根据权利要求 1所述的高温超导电缆多段连接装置， 其特征在于， 所述 的连接装置连接高温超导电缆时， 两个高温超导电缆通电导体 （9) 分别置于左 右两个低温杜瓦管（1) 内， 两个高温超导电缆通电导体（9)通过过渡铜金属端 头 （18)、 通电导体补偿软线 （19)、 通电导体压接端子 （20)连接在一起； 所述 的低温杜瓦管真空插接公口 5的端头上套装有低温密封垫（8); 所述的低温杜瓦 管真空插接公口 （5)插接在低温杜瓦管真空插接母口 （7) 内； 所述的高温超导 电缆多段连接装置内半导电屏蔽层 （16) 与高温超导电缆本体内半导电屏蔽层2. The high temperature superconducting cable multi-segment connection device according to claim 1, wherein When the connecting device is connected to the high-temperature superconducting cable, the two high-temperature superconducting cable energizing conductors (9) are respectively placed in the left and right low temperature dewar tubes (1), and the two high-temperature superconducting cables energizing conductors (9) pass the transition copper. The metal end (18), the energized conductor compensating cord (19), and the energizing conductor crimping terminal (20) are connected together; the end of the low temperature dewar vacuum plug male port 5 is provided with a low temperature gasket (8); the low temperature dewar tube vacuum plug male port (5) is inserted in the low temperature dewar tube vacuum plug female port (7); the high temperature superconducting cable multi-section connecting device semi-conductive shield Layer (16) and semi-conductive shielding layer in the body of high temperature superconducting cable
(10)连接， 高温超导电缆多段连接装置绝缘层（14)与高温超导电缆本体绝缘 层 （11)连接， 高温超导电缆多段连接装置外半导电屏蔽层（15)与高温超导电 缆本体外半导电屏蔽层（13)连接， 高温超导电缆多段连接装置金属屏蔽层（21) 与高温超导电缆本体金属屏蔽层（25)连接， 高温超导电缆多段连接装置保护层(10) Connection, high-temperature superconducting cable multi-section connecting device insulation layer (14) is connected with high-temperature superconducting cable body insulation layer (11), high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer (15) and high-temperature superconducting cable The external semi-conductive shielding layer (13) is connected, the high-temperature superconducting cable multi-section connecting device metal shielding layer (21) is connected with the high-temperature superconducting cable body metal shielding layer (25), the high-temperature superconducting cable multi-section connecting device protective layer
(17) 与高温超导电缆本体保护层 （12) 连接。 (17) Connect to the high temperature superconducting cable body protection layer (12).
3、 根据权利要求 1或 2所述的高温超导电缆多段连接装置， 其特征在于， 所述的低温杜瓦管真空插接公口 （5)和低温杜瓦管真空插接母口 （7)设计为真 空夹层。  The high-temperature superconducting cable multi-section connecting device according to claim 1 or 2, wherein the low temperature dewar tube vacuum plugging male port (5) and the low temperature dewar tube vacuum plugging female port (7) ) Designed as a vacuum sandwich.
4、 根据权利要求 1或 2所述的高温超导电缆多段连接装置， 其特征在于所 述的高温超导电缆多段连接装置内半导电屏蔽层 （16)、 高温超导电缆多段连接 装置绝缘层（14)、 高温超导电缆多段连接装置外半导电屏蔽层（15)、 高温超导 电缆多段连接装置保护层 （17) 均为热缩型管材。  The high-temperature superconducting cable multi-segment connection device according to claim 1 or 2, characterized in that the semi-conductive shielding layer (16) and the high-temperature superconducting cable multi-section connecting device insulation layer of the high-temperature superconducting cable multi-section connecting device (14), high-temperature superconducting cable multi-section connecting device outer semi-conductive shielding layer (15), high-temperature superconducting cable multi-section connecting device protective layer (17) are heat-shrinkable pipes.
5、 根据权利要求 1所述的高温超导电缆多段连接装置， 其特征在于所述的 通电导体补偿软线由多根编制或绞制在一起的铜软线组成，补偿软线的数量根据 超导电缆载流量大小调整。  The high-temperature superconducting cable multi-segment connection device according to claim 1, wherein the energized conductor compensation cord is composed of a plurality of copper cords that are braided or twisted together, and the number of compensating cords is super Guide cable current carrying capacity adjustment.
6、 根据权利要求 1所述的高温超导电缆多段连接装置， 其特征在于所述的 应力控制层 （23) 由应力控制带绕包或者应力锥组成， 应力控制层宽度不超过 200mmo 6, according to claim 1, HTS cable connecting device of the multistage claim, wherein said stress control layer (23) by a stress control tape wrapping stress cone or composition, the stress control layer width not exceeding 200mm o
7、 根据权利要求 1所述的高温超导电缆多段连接装置， 其特征在于所述的 高温超导电缆多段连接装置金属屏蔽层 （21) 由金属铜网或金属铜带组成。  7. The high temperature superconducting cable multi-segment connection device according to claim 1, wherein the high temperature superconducting cable multi-section connecting device metal shielding layer (21) is composed of a metal copper mesh or a metal copper strip.
PCT/CN2012/074882 2012-02-08 2012-04-28 High temperature super-conducting cable multi-segment connection device WO2013117058A1 (en)

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