CN110534335B - Superconducting magnet joint superconducting cable intercept repairing device and method thereof - Google Patents
Superconducting magnet joint superconducting cable intercept repairing device and method thereof Download PDFInfo
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- CN110534335B CN110534335B CN201910776571.7A CN201910776571A CN110534335B CN 110534335 B CN110534335 B CN 110534335B CN 201910776571 A CN201910776571 A CN 201910776571A CN 110534335 B CN110534335 B CN 110534335B
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- superconducting cable
- superconducting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/048—Superconductive coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
- H01F6/065—Feed-through bushings, terminals and joints
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a superconducting magnet joint superconducting cable intercept repairing device and a method thereof. The superconductive cable intercept repairing tool consists of a clamping mechanism and a knob mechanism, and after the superconductive cable penetrates into the joint box, the superconductive cable intercept repairing is completed before the joint box is sealed and welded. The structure of the invention is characterized in that the intercept of the superconducting cable which has penetrated into the joint box is repaired through a simple repair tool, so as to ensure that the intercept of the superconducting cable which has penetrated into the joint box is consistent with the initial intercept of the conductor, thereby ensuring the working performance of the superconducting joint at low temperature. This repair method has found practical engineering applications in the manufacture of ITER poloidal field magnets.
Description
Technical Field
The invention relates to the field of manufacturing of superconducting connectors of superconducting magnets of large thermonuclear fusion devices or other large electromagnetic devices, in particular to a superconducting connector superconducting cable intercept repairing device and a method thereof.
Background
Thermonuclear fusion will provide inexhaustible clean energy for humans, and the international thermonuclear fusion experimental reactor (ITER) project will be built within the next decade. The key component is a superconducting magnet, and the performance of the superconducting magnet determines whether plasma with a required bit pattern can be formed. Superconducting joints are important components of superconducting magnet coils for electrical connection between superconducting cables inside the magnet coil and between the coil itself and an external feed line. Some superconducting magnet coils have the functions of plasma current drive and position shape control, so that the working current is large, the working current change rate is also large, and the superconducting magnet coils work in the complex magnetic field environment of a Tokamak magnet system, so that the low-temperature performance of a superconducting joint is strictly required. Whether the intercept of the superconducting cable penetrating into the splice closure is the initial value of conductor manufacture is one of the key parameters for whether the superconducting splice can achieve excellent performance. A series of pre-treatments of the superconducting cable before the superconducting cable is inserted into the splice closure necessarily cause the intercept deviation of the superconducting cable, so that the intercept of the superconducting cable which is deviated from the initial value needs to be repaired.
Disclosure of Invention
The invention aims to provide a device and a method for repairing the intercept of a superconducting magnet joint superconducting cable.
The invention is realized by the following technical scheme:
the utility model provides a superconducting magnet connects superconductive cable intercept prosthetic devices, includes the splice box, its characterized in that: comprises a clamping mechanism arranged at the front end of the joint box and a knob mechanism arranged at the inlet end of the joint box.
The clamping mechanism comprises an upper clamping plate and a lower clamping plate which are respectively positioned above and at the bottom of the joint box, a limiting block is fixed on the lower surface of the upper clamping plate, a clamping groove matched with the appearance of the superconducting cable is formed in the bottom surface of the limiting block, a left screw and a right screw are respectively positioned on the left side and the right side of the joint box and are fixed at the two ends of the lower clamping plate, a left through hole and a right through hole which correspond to the left screw and the right screw are respectively arranged on the parts, positioned on the two sides of the limiting block, of the upper clamping plate, the top ends of the left screw and the right; the limiting block is inserted into the joint box and forms a clamping hole of the superconducting cable with the joint box.
The knob mechanism comprises a clamping seat fixedly clamped on the joint box, and handle rods are arranged on two sides of the clamping seat.
A method for repairing the intercept of a superconducting cable of a superconducting magnet joint is characterized by comprising the following steps: the method comprises the following steps of:
1) and taking the superconducting cable, and drawing an initial position marking line at a position right above the end face of the superconducting cable corresponding to the splice box.
2) Sequentially carrying out armor removing, electrochemical treatment and diameter reducing treatment on the superconducting cable on the end part of the section of the superconducting cable on which the initial position marking line is made;
3) and keeping the whole position of the superconducting cable still, inserting the splice closure into the end part of the superconducting cable, and adjusting the position of the splice closure after the splice closure is inserted so as to enable the central line of the end surface of the splice closure to coincide with the initial position marking line.
4) The clamping mechanism is installed at the front end of the connector box and is 5-10 mm away from the end part of the superconducting cable, the limiting nut is screwed to enable the connector box to be clamped between the upper clamping plate and the lower clamping plate, and the superconducting cable is clamped between the upper clamping plate and the connector box.
5) The handle rod is pulled, the joint box is driven to rotate through the knob mechanism until the joint box rotates to the horizontal position, the upper surface of the joint box is parallel to the surface of the armor on the outer side of the superconducting cable, the intercept repair of the superconducting cable is completed, and the intercept size measurement is carried out.
The method for repairing the intercept of the superconducting cable of the superconducting magnet joint is characterized by comprising the following steps: and 4), the distance between the clamping mechanism and the end part of the superconducting cable is 8 mm.
The method for repairing the intercept of the superconducting cable of the superconducting magnet joint is characterized by comprising the following steps: in the fourth step, the upper surface of the superconducting cable is tightly pressed in the limiting groove of the limiting block on the bottom surface of the upper clamping plate.
According to the method, the initial position marking line is marked at the end head of the superconducting cable, and the intercept of the superconducting cable is repaired to the initial state in a manual turning mode.
The clamping mechanism and the knob mechanism are made of stainless steel, and the repair of the intercept of the superconducting cable is completed before the sealing welding of the splice box after the superconducting cable penetrates into the splice box.
The invention is not based on large-scale cable stranding equipment, and the large-scale cable stranding equipment is not suitable for the online manufacturing of the superconducting joint.
The invention has the advantages that:
the repair work of the intercept of the superconducting cable is realized through a simple tool, and meanwhile, the secondary damage of the superconducting cable cannot be caused in the repair process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the operation of the present invention.
Detailed Description
See the drawings.
A superconducting magnet joint superconducting cable intercept repairing device comprises a joint box 1, a clamping mechanism 2 and a knob mechanism 4, wherein the clamping mechanism 2 is installed at the front end of the joint box 1, and the knob mechanism 4 is installed at the inlet end of the joint box 1.
The knob mechanism 4 comprises a clamping seat 11 fixedly clamped on the joint box, and handle rods 12 are arranged on two sides of the clamping seat 11.
A method for repairing the intercept of a superconducting cable of a superconducting magnet joint is characterized by comprising the following steps: the method comprises the following steps of:
1) and taking the superconducting cable 3, and drawing an initial position marking line 13 at a position right above the end face of the superconducting cable 3 corresponding to the splice box.
2) Sequentially carrying out armor removing, electrochemical treatment of the superconducting cable 3 and diameter reducing treatment of the superconducting cable 3 on the end part of the section of the superconducting cable 3 on which the initial position marking line is finished;
3) keeping the whole position of the superconducting cable 3 still, inserting the splice closure 1 into the end part of the superconducting cable 3, and adjusting the position of the splice closure 1 after the splice closure 1 is inserted so as to enable the end surface center line of the splice closure 1 to coincide with the initial position marking line.
4) The clamping mechanism 2 is installed at the front end of the connector box, the distance between the clamping mechanism and the end portion of the superconducting cable is 5-10 mm, the connector box is clamped between the upper clamping plate and the lower clamping plate by screwing the limiting nut, and the superconducting cable is clamped between the upper clamping plate and the connector box.
5) Pulling the handle rod 12, driving the joint box to rotate through the knob mechanism 4 until the joint box 1 rotates to a horizontal position, and the upper surface of the joint box 1 is parallel to the surface of the armor 5 on the outer side of the superconducting cable, completing the intercept repair of the superconducting cable, and measuring the intercept size.
Claims (4)
1. The utility model provides a superconducting magnet connects superconductive cable intercept prosthetic devices, includes the splice box, its characterized in that: comprises a clamping mechanism arranged at the front end of a joint box and a knob mechanism arranged at the inlet end of the joint box;
the clamping mechanism comprises an upper clamping plate and a lower clamping plate which are respectively positioned above and at the bottom of the joint box, a limiting block is fixed on the lower surface of the upper clamping plate, a clamping groove matched with the appearance of the superconducting cable is formed in the bottom surface of the limiting block, a left screw and a right screw are respectively positioned on the left side and the right side of the joint box and are fixed at the two ends of the lower clamping plate, a left through hole and a right through hole which correspond to the left screw and the right screw are respectively arranged on the parts, positioned on the two sides of the limiting block, of the upper clamping plate, the top ends of the left screw and the right; the limiting block is inserted into the joint box and forms a clamping hole of the superconducting cable with the joint box;
the knob mechanism comprises a clamping seat fixedly clamped on the joint box, and handle rods are arranged on two sides of the clamping seat.
2. A method for repairing the intercept of a superconducting cable of a superconducting magnet joint is characterized by comprising the following steps: the method comprises the following steps of:
(1) taking a superconducting cable, and drawing an initial position marking line at a position right above the end face of the superconducting cable corresponding to the splice closure;
(2) sequentially carrying out armor removing, electrochemical treatment and diameter reducing treatment on the superconducting cable on the end part of the section of the superconducting cable on which the initial position marking line is made;
(3) keeping the whole position of the superconducting cable still, inserting the splice closure into the end part of the superconducting cable, and adjusting the position of the splice closure after the splice closure is inserted so as to enable the central line of the end surface of the splice closure to coincide with the initial position marking line;
(4) installing a clamping mechanism at the front end of the splice box, wherein the distance between the clamping mechanism and the end part of the superconducting cable is 5-10 mm, screwing a limit nut to clamp the splice box between an upper clamping plate and a lower clamping plate, and clamping the superconducting cable in a clamping hole between the upper clamping plate and the splice box;
(5) the handle rod is pulled, the joint box is driven to rotate through the knob mechanism until the upper surface of the joint box rotates to the horizontal position, the upper surface of the joint box is parallel to the surface of the armor on the outer side of the superconducting cable, the intercept repair of the superconducting cable is completed, and the intercept size measurement is carried out.
3. The superconducting magnet joint superconducting cable intercept repair method according to claim 2, wherein: and 4), the distance between the clamping mechanism and the end part of the superconducting cable is 8 mm.
4. The superconducting magnet joint superconducting cable intercept repair method according to claim 2, wherein: in the fourth step, the upper surface of the superconducting cable is tightly pressed in the limiting groove of the limiting block on the bottom surface of the upper clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776571.7A CN110534335B (en) | 2019-08-22 | 2019-08-22 | Superconducting magnet joint superconducting cable intercept repairing device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776571.7A CN110534335B (en) | 2019-08-22 | 2019-08-22 | Superconducting magnet joint superconducting cable intercept repairing device and method thereof |
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| CN110534335A CN110534335A (en) | 2019-12-03 |
| CN110534335B true CN110534335B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910776571.7A Active CN110534335B (en) | 2019-08-22 | 2019-08-22 | Superconducting magnet joint superconducting cable intercept repairing device and method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255201A (en) * | 1988-04-05 | 1989-10-12 | Mitsubishi Electric Corp | Method for connecting lead of winding for electric equipment |
| CN1873847A (en) * | 2006-05-25 | 2006-12-06 | 中国科学院等离子体物理研究所 | Cold end of heavy current lead out wire made from high-temperature superconductor, and low resistance connector of superconducting transmission line |
| CN107270801A (en) * | 2017-05-09 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of special-shaped armor inside diameter detection device of superconducting conductor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6387525B1 (en) * | 1997-04-14 | 2002-05-14 | Florida State University | Self insulating substrate tape |
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2019
- 2019-08-22 CN CN201910776571.7A patent/CN110534335B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255201A (en) * | 1988-04-05 | 1989-10-12 | Mitsubishi Electric Corp | Method for connecting lead of winding for electric equipment |
| CN1873847A (en) * | 2006-05-25 | 2006-12-06 | 中国科学院等离子体物理研究所 | Cold end of heavy current lead out wire made from high-temperature superconductor, and low resistance connector of superconducting transmission line |
| CN107270801A (en) * | 2017-05-09 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of special-shaped armor inside diameter detection device of superconducting conductor |
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| CN110534335A (en) | 2019-12-03 |
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