CN103714936A - High temperature superconductor coil and winding technology thereof - Google Patents
High temperature superconductor coil and winding technology thereof Download PDFInfo
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- CN103714936A CN103714936A CN201310712048.0A CN201310712048A CN103714936A CN 103714936 A CN103714936 A CN 103714936A CN 201310712048 A CN201310712048 A CN 201310712048A CN 103714936 A CN103714936 A CN 103714936A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
The invention discloses a high temperature superconductor coil and a winding technology of the high temperature superconductor coil. The high temperature superconductor coil comprises an epoxy barrel and a plurality of layers of coil units, wherein each coil unit is composed of a low temperature glue layer, a polyimide film layer and a superconduction strip layer which are arranged in sequence. According to the winding technology, firstly, a framework of the superconductor coil is well fixed, winding positions are marked, the surface of the framework is evenly coated with low temperature glue and wound with polyimide films, then polyimide belts are laid at equal intervals, tensioned and fixed, after a strip winding disc is prepared, the wire inlet end is fixed to the surface of the framework and is evenly and densely wound with a layer of superconduction strips, then the surface of each strip is coated with the low temperature glue and wound with a layer of polyimide films, the polyimide belts are tensioned and laid backwards, and all the operations are repeated until the whole coil is wound. It is guaranteed that certain prestress is applied to the superconduction strips, layer insulation is achieved through the polyimide films and the low temperature glue, and the winding technology is simple and effective on the basis of ensuring the performance of the strips effectively.
Description
Technical field
The present invention relates to high temperature superconductor coil, be specifically related to a kind of high temperature superconductor coil and technique for coiling thereof.
Background technology
Along with the economic develop rapidly of China, rise year by year in many urban power consumption, and the electric load of urban central zone increases sharply, and power transmission and distribution capacity significantly increases, and reduces grid loss and improve the problems such as operation of power networks stability also to propose thereupon.Network system is very large in the loss of power transmission and distribution link at present, therefore minimizing grid loss scheme is all being found by each state, wherein superconductor is one of most important scheme reducing grid loss, superconductor has low-loss, high efficiency, transmission current density advantages of higher, significant for the development of following power industry.In recent years, along with the development of high temperature superconducting materia technology, electromagnetic property and the mechanical property of high temperature superconducting materia are greatly improved, and high temperature superconducting materia can be realized and commercially produce on a large scale.The commercially producing of superconducting tape promoted superconducting device in global broad research and application.Superconducting coil is the core of superconducting device, so the technique for coiling of superconducting coil has almost determined the quality of the performance of superconducting device.The technique for coiling of a underproof superconducting coil can cause the performance of superconducting coil device greatly to reduce, and in serious situation, even can cause burning of superconducting coil.
In the process of high temperature superconductor coil coiling, the technique for coiling such as fixing of the processing of the coiling form of coil, the selection of skeleton, prestressed size, turn-to-turn and layer insulation and coil all can affect the performance of superconducting coil, thereby need to determine suitable technique for coiling, to guarantee that the electromagnetic property of superconducting coil can meet design requirement, and guarantees the security and stability of superconducting magnet long-term work simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of high temperature superconductor coil and technique for coiling thereof, object is that the high temperature superconductor coil that guarantees institute's coiling has good structural stability and job security.
A kind of high temperature superconductor coil provided by the invention, it is characterized in that, it comprises epoxy cylinder and lattice coil unit, described epoxy cylinder is open circles tubular, the stacked zone line that is enclosed within this epoxy cylinder of each layer line coil unit, each coil unit unit is by the low temperature glue-line of arranging successively, polyimide film layer and superconducting tape layer form, each superconducting tape layer is by same or forms with several superconducting tape coilings, described polyimide film layer consists of polyimide film winding layer and polyimides belt, this polyimides belt is comprised of several polyimides bands along axis direction disposed at equal distance on polyimide film winding layer.
The technique for coiling of described high temperature superconductor coil provided by the invention, is characterized in that, this technique comprises following process:
The centre that the 1st step is got epoxy cylinder is coiling region, at coiling region coating one deck low temperature glue-line;
The 2nd step is wound around one deck by polyimide film on low temperature glue-line, and is connected and fixed with Kapton Tape at interface; After completing, polyimides band is surperficial at epoxy cylinder along axis direction uniform spreading, tension, two ends are fixed with Kapton Tape, form polyimide film layer;
After every layer of coiling of described polyimides band completes, polyimides band is turned back, in lower one deck, return again paving;
The 3rd step is fixed on superconducting tape one end on epoxy cylinder with Kapton Tape, and then even coiling one deck superconducting line ring layer closely, guarantees that in this process polyimides band is tension, and one deck coil unit completes;
The 4th step, after ground floor coiling, sticks on superconducting tape on skeleton with Kapton Tape, to avoid superconducting layer to deform, and is that the making of terminal and current feed is ready, and first coil unit completes;
The 5th step, on the up-to-date coil unit completing, repeats above-mentioned the 1st step to the 3 steps, until complete the coiling of whole coil;
The 6th step in the end last circle superconducting tape terminal of one deck is entangled with heat-shrinkable T bush, so that the terminal of protection coil, then leading-out terminal is fixed on padded cardboard bar, and polyimides is taken back to paving, and sticking on outermost layer, last coil unit completes, in addition, in strip surface, with polyimides band, be wound around one deck, carry out and fix and brush insulating varnish, form external protection;
The 7th step is put into drying baker, and temperature, lower than 100 ℃, is dried.
Band layering coiling that the present invention adopts single (or double joint), all superconducting layers form by same band coiling, so interlayer non junction, avoid the problem of internal connection fault, only retained interior one deck first circle the end of a thread and last circle the end of a thread of outermost one deck as turnover current feed joint.
Structure of the present invention can adopt a layer winding, and by superconducting coil layering coiling, the winding process of every one deck has all guaranteed insulation and stability, by band half-stack package is processed, guarantees turn-to-turn insulation; By brushing low temperature glue, parcel polyimide film, by turn back the back paving tension of polyimides band, in fixed coil, guarantee layer insulation, simplified the process complexity of fixing and applying insulation.
Accompanying drawing explanation
Fig. 1 is fixedly polyimide film schematic diagram of skeleton.
Fig. 2 single layer coil winding process figure, wherein (a) is coiling one deck result schematic diagram, is (b) layer insulation schematic diagram (leading to phantom), (c) for arrowband returns paving schematic diagram.
Fig. 3 is new layer coiling result schematic diagram (leading to phantom).
Fig. 4 is coil general illustration.
Embodiment
In the present invention, when band amount that coiling needs is less, adopt the coiling of solenoid coil mode to avoid the connection between coil, adopt directly coiling of single strips (also can be double joint around), make winding process more convenient and can not bring damage to band.During concrete coiling, adopt the mode of layering coiling, selected superconducting tape with polyimide film half-stack package around, thereby guarantee turn-to-turn insulation; When every coiling completes one deck coil, interlayer lays one deck polyimide film, is used for guaranteeing layer insulation, prevents superconducting layer distortion simultaneously, comes off; Fixing low temperature glue, every coiling one deck, equably the brushing one deck low temperature glue on superconducting layer of adopting of turn-to-turn; The fixing polyimide film (band shape) that adopts of interlayer, by polyimide film along skeleton even circumferential distribute, every coiling one deck, tension, returns paving, fixing, last colligation is fixed, to guarantee that superconducting coil is not in the situation that flooding, can be comparatively firm.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that instantiation described herein, only for explaining the present invention, is not intended to limit the present invention.
The present invention, in implementation process, considers that the upper end of epoxy cylinder 1 need to reserve the distance of current feed, and lower end needs perforate to be convenient to the circulation of liquid nitrogen, thereby the two ends up and down of epoxy cylinder 1 all reserve certain distance.
The superconducting tape that the superconducting coil of example of the present invention adopts completes insulation processing by half-stack package mode, carries out the coiling of superconducting coil according to mode below.
As shown in Figure 1, according to above-mentioned requirements, the centre of getting epoxy cylinder 1 is coiling region, after mark is carried out on the border in coiling region, evenly coats low temperature glue, then polyimide film 2 is wound around to one deck along winding region field surface, and is connected and fixed with Kapton Tape at interface; After completing by 8 polyimides bands 4 along axis direction uniform spreading on epoxy cylinder 1 surface, tension, two ends are fixing with Kapton Tape 3;
As shown in Fig. 2 (a), superconducting tape one end is fixed on epoxy cylinder 1 with Kapton Tape, then even coiling one deck 5 closely, should guarantee that in this process polyimides band is tension;
As shown in Fig. 2 (b), after ground floor coiling, the first circle is sticked on skeleton with Kapton Tape, to avoid superconducting layer to deform, and be that the making of terminal and current feed is ready, simultaneously even with 6 brushings of low temperature glue on the good individual layer band of coiling, then, by polyimide film 2 uniform winding one deck on the complete superconducting tape of coiling, interface is fixed with Kapton Tape;
As shown in Fig. 2 (c), polyimides band 4 turned back, return paving after completing said process, surperficial at epoxy cylinder along axis direction uniform spreading equally, tension guarantees lax, one end is fixed with Kapton Tape 3.
Each root polyimides band of every layer is all continuous, is a kind of shape of reciprocating and turning-back, and similar a kind of zigzag returns paving once around one deck superconducting tape.
As shown in Figure 3, on the basis of last layer coil, repeat the operation shown in Fig. 1, Fig. 2 (a), (b), coiling second layer superconducting coil 5, even with low temperature glue 6 brushing on band, and be wound around one decks with polyimide film 2;
Repeat step shown in Fig. 2 (c), by 4 times pavings of polyimides band, tension, fixing;
Repeat above process, successively coiling is until complete the coiling of whole coil;
As shown in Figure 4, complete after coiling, last circle superconducting tape terminal 7 use heat-shrinkable T bushs 8 of last one deck entangle; so that the terminal of protection coil, is then fixed on leading-out terminal on padded cardboard bar 9, and polyimides is taken back to paving; stick on outermost layer; in strip surface, with polyimides band, be wound around one deck, carry out and fix and brush insulating varnish, form outer 10 protections; superconducting coil can be fixed better; again coil is put into drying baker, temperature, lower than 100 ℃, is dried 24 hours.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a high temperature superconductor coil, it is characterized in that, it comprises epoxy cylinder and lattice coil unit, described epoxy cylinder is open circles tubular, the stacked zone line that is enclosed within this epoxy cylinder of each layer line coil unit, each coil unit unit is by the low temperature glue-line of arranging successively, polyimide film layer and superconducting tape layer form, each superconducting tape layer is by same or forms with several superconducting tape coilings, described polyimide film layer consists of polyimide film winding layer and polyimides belt, this polyimides belt is comprised of several polyimides bands along axis direction disposed at equal distance on polyimide film winding layer.
2. high temperature superconductor coil according to claim 1, is characterized in that, the superconducting tape outlet headgear of outermost superconducting tape layer has heat-shrinkable T bush.
3. high temperature superconductor coil according to claim 1, is characterized in that, each polyimides belt is by continuous polyimides band, to be turned back and returned paving to form.
4. high temperature superconductor coil according to claim 1; it is characterized in that, on outermost wire coil unit, be also provided with external protection, this external protection is by polyimide film winding layer; the polyimides band being evenly arranged along axis direction at this polyimide film winding layer, and insulation enamelled coating forms.
5. the high temperature superconductor coil described in claim 1,2 or 3, is characterized in that, the polyimides band described in every is continuous in each polyimide film layer.
6. a technique for coiling for high temperature superconductor coil described in claim 1, is characterized in that, this technique comprises following process:
The centre that the 1st step is got epoxy cylinder is coiling region, at coiling region coating one deck low temperature glue-line;
The 2nd step is wound around one deck by polyimide film on low temperature glue-line, and is connected and fixed with Kapton Tape at interface; After completing, polyimides band is surperficial at epoxy cylinder along axis direction uniform spreading, tension, two ends are fixed with Kapton Tape, form polyimide film layer;
After every layer of coiling of described polyimides band completes, polyimides band is turned back, in lower one deck, return again paving;
The 3rd step is fixed on superconducting tape one end on epoxy cylinder with Kapton Tape, and then even coiling one deck superconducting line ring layer closely, guarantees that in this process polyimides band is tension, and one deck coil unit completes;
The 4th step, after ground floor coiling, sticks on superconducting tape on skeleton with Kapton Tape, to avoid superconducting layer to deform, and is that the making of terminal and current feed is ready, and first coil unit completes;
The 5th step, on the up-to-date coil unit completing, repeats above-mentioned the 1st step to the 3 steps, until complete the coiling of whole coil;
The 6th step in the end last circle superconducting tape terminal of one deck is entangled with heat-shrinkable T bush, so that the terminal of protection coil, then leading-out terminal is fixed on padded cardboard bar, and polyimides is taken back to paving, and sticking on outermost layer, last coil unit completes, in addition, in strip surface, with polyimides band, be wound around one deck, carry out and fix and brush insulating varnish, form external protection;
The 7th step is put into drying baker, and temperature, lower than 100 ℃, is dried.
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| CN201310712048.0A CN103714936B (en) | 2013-12-21 | 2013-12-21 | A kind of high temperature superconductor coil and technique for coiling thereof |
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| CN201310712048.0A CN103714936B (en) | 2013-12-21 | 2013-12-21 | A kind of high temperature superconductor coil and technique for coiling thereof |
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| CN103714936A true CN103714936A (en) | 2014-04-09 |
| CN103714936B CN103714936B (en) | 2016-02-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275257A (en) * | 2018-07-24 | 2019-01-25 | 东莞中子科学中心 | Method and resulting object in the outer surface elongate material that can wind component |
| CN111243854A (en) * | 2020-04-28 | 2020-06-05 | 山东奥新医疗科技有限公司 | Magnetic resonance superconducting coil winding method and magnetic resonance superconducting coil |
| CN112201434A (en) * | 2020-09-18 | 2021-01-08 | 华中科技大学 | Multilayer inductor for special power supply system and preparation method thereof |
| CN112908686A (en) * | 2021-02-05 | 2021-06-04 | 西安聚能超导磁体科技有限公司 | Winding method of multilayer nested solenoid coil |
| CN112951584A (en) * | 2021-01-25 | 2021-06-11 | 西安聚能超导磁体科技有限公司 | Use method of superconducting magnet single continuous winding and shaping device |
| CN113421770A (en) * | 2021-06-30 | 2021-09-21 | 保定天威集团特变电气有限公司 | Spiral coil anti-rebound method |
| CN114496459A (en) * | 2022-03-14 | 2022-05-13 | 北京交通大学 | Multilayer solenoid type superconducting ROEBEL winding structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109275257B (en) * | 2018-07-24 | 2021-04-06 | 东莞中子科学中心 | Method for fixing an elongated material on the outer surface of a windable component and resulting object |
| CN111243854A (en) * | 2020-04-28 | 2020-06-05 | 山东奥新医疗科技有限公司 | Magnetic resonance superconducting coil winding method and magnetic resonance superconducting coil |
| CN112201434A (en) * | 2020-09-18 | 2021-01-08 | 华中科技大学 | Multilayer inductor for special power supply system and preparation method thereof |
| CN112951584A (en) * | 2021-01-25 | 2021-06-11 | 西安聚能超导磁体科技有限公司 | Use method of superconducting magnet single continuous winding and shaping device |
| CN112951584B (en) * | 2021-01-25 | 2023-01-03 | 西安聚能超导磁体科技有限公司 | Use method of superconducting magnet single continuous winding and shaping device |
| CN112908686A (en) * | 2021-02-05 | 2021-06-04 | 西安聚能超导磁体科技有限公司 | Winding method of multilayer nested solenoid coil |
| CN113421770A (en) * | 2021-06-30 | 2021-09-21 | 保定天威集团特变电气有限公司 | Spiral coil anti-rebound method |
| CN113421770B (en) * | 2021-06-30 | 2022-09-06 | 保定天威集团特变电气有限公司 | Spiral coil anti-rebound method |
| CN114496459A (en) * | 2022-03-14 | 2022-05-13 | 北京交通大学 | Multilayer solenoid type superconducting ROEBEL winding structure |
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| CN103714936B (en) | 2016-02-03 |
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