CN109273188A - A kind of circumferential magnet based on ReBCO superconduction ring plate - Google Patents
A kind of circumferential magnet based on ReBCO superconduction ring plate Download PDFInfo
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- CN109273188A CN109273188A CN201811147579.9A CN201811147579A CN109273188A CN 109273188 A CN109273188 A CN 109273188A CN 201811147579 A CN201811147579 A CN 201811147579A CN 109273188 A CN109273188 A CN 109273188A
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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
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Abstract
The invention discloses a kind of circumferential magnets based on ReBCO superconduction ring plate for belonging to superconducting magnet applied technical field.Circumferential magnet is circumferentially uniformly distributed by multiple identical unit circumferential direction field magnets, combines and constitutes, wherein unit circumferential direction field magnet is alternately stacked by N piece ReBCO superconduction ring plate, N+1 piece insulating trip, fixes to obtain, and wherein N is positive integer；ReBCO superconduction ring plate is D-ring piece, and N+1 piece insulation plate shape, size are identical as N piece ReBCO superconduction ring plate；Using the cooling magnet mode of cooled cryostat immersion type, has many advantages, such as that high magnet current-carrying capability, low drain are hot, compact-sized, detachable, the magnetic field of stable large space can be generated, be widely used in the fields such as medium-and-large-sized tockmark magnet, thermonuclear fusion reaction.
Description
Technical field
The invention belongs to superconducting magnet applied technical field, in particular to a kind of circumferential magnetic based on ReBCO superconduction ring plate
Body.
Background technique
With the continuous promotion of high temperature super conductive conductor performance, the R&D work of high-temperature superconducting magnet is also carrying out steadily.It is high
Temperature superconductive toroidal coils are a kind of structure type of high-temperature superconducting magnet, its most important and most promising application is thermonuclear
Fusion and tockmark circumferential direction magnet.Circumferential magnet be uniformly distributed by several duplicate unit coils along one big ring and
At magnet, the stable magnetic field of large space can be generated.
The low-temperature superconducting conducting wire that tokamak magnet uses at present carrys out coiling, and operating temperature is very low, and magnet refrigeration work consumption is big,
Magnetic field value achieved is limited, if replacing low-temperature superconducting conducting wire come coiling circumferential direction magnet with high temperature super conductive conductor, so that it may mention
The operating temperature of high magnet reduces refrigeration work consumption, and the upper critical field of high temperature superconducting materia is higher than cryogenic material, can be with
The magnetic field strength of circumferential magnet is increased to new level, it is also very good for improving fusion reaction power.But it utilizes high
Temperature superconductive conducting wire, the joint of inevitable high temperature super conductive conductor need to weld, and are also required to current feed and power supply electricity
Source is connected, and the leakage heat of magnet is bigger.
Summary of the invention
The purpose of the present invention is to provide a kind of circumferential magnet based on ReBCO superconduction ring plate, specific technical solution is as follows:
A kind of circumferential magnet based on ReBCO superconduction ring plate is circumferentially uniformly divided by multiple identical unit circumferential direction field magnets
Cloth, combination are constituted, and the unit circumferential direction field magnet is alternately stacked by N piece ReBCO superconduction ring plate, N+1 piece insulating trip, is fixed
It arrives, wherein N is positive integer；
The ReBCO superconduction ring plate is D-ring piece, the N+1 piece insulation plate shape, size and N piece ReBCO superconduction D-shaped
Ring plate is all the same.
Wherein, 1 turning of the D-shaped inner ring of D-ring piece or 2 corner's incising circular location holes.
Wherein, the D-ring piece axial symmetry of 2 turning incising circular location holes of D-shaped inner ring.
Wherein, ReBCO superconduction ring plate is by the substrate, buffer layer, ReBCO film and the protective layer group that are arranged successively from bottom to top
At；Substrate material is Ni, NiW, Hastelloy or stainless steel；Buffer layer is insulating properties metal oxide；Protective layer is Ag films
Protective layer or Copper thin film protective layer.Wherein, buffer layer is deposited using ion beam assisted deposition or inclined substrate deposition technique,
ReBCO film is deposited using Metallo-Organic Chemical Vapor deposition, pulsed laser deposition or sputtering method.
Wherein, the stacking direction of N piece ReBCO superconduction ring plate is consistent.
Wherein, insulating trip is organic insulation piece, brown paper or epoxy laminate.
Wherein, the fixation of circumferential magnet includes the fixation and the entirely fixation of circumferential magnet of individual unit circumferential direction field magnet,
Can be fixed in unit circumferential direction field magnet inner annular cavity using ring steel armour bracket, then using ring flange, nut,
Individual unit circumferential direction field magnet is fixed in bolt and steel armour, using the fixing means of existing tockmark device, utilizes
Support tube, steel armour bracket carry out the fixation of whole circumferential magnet；Fixed material is preferably stainless steel, fiber glass epoxy or epoxy
Resin.
Wherein, circumferential magnet realizes ring using flux pump inside excitation, using the cooling magnet mode of cooled cryostat immersion type
To the operation with closed ring of magnet.
Wherein, flux pump includes the pulse power and magnetic plug；Specifically: magnetic plug passes through circumferential magnet circle positioning
Hole is circumferential magnet excitation, and the pulse power provides alternating current, increases to circumferential magnets magnetic fields constantly by periodical excitation
Desired value keeps constant circumferential magnet current, maintains stable magnetic field.
The invention has the benefit that ReBCO superconduction ring plate is designed as D-ring piece by the present invention, ReBCO superconduction has been expanded
Body is applied to the range of high-intensity magnetic field and thermonuclear fusion；It can not only be exported with the circumferential superconducting magnet that insulating trip circumferential direction stacks
The stable magnetic field of large space, and be without welding, without big power supply and current feed between internal each ReBCO superconduction ring plate
It is able to achieve operation with closed ring, using the cooling magnet mode of cooled cryostat immersion type, but there is high magnet current-carrying capability, low drain heat, knot
The advantages that structure is compact, detachable；The magnetic field that stable large space can be generated meets magnetic field configuration and magnetic needed for plasma confinement
Field intensity is widely used in the fields such as medium-and-large-sized tockmark magnet, thermonuclear fusion reaction.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of ReBCO superconduction thin slice；
Label declaration: 1-ReBCO superconduction thin slice；101- substrate；102- buffer layer；103-ReBCO film；104- protection
Layer；
Attached drawing 2 is ReBCO superconducting ring chip architecture schematic diagram；
Attached drawing 3 is insulation fin construction schematic diagram；
Attached drawing 4 is the circumferential magnet structure schematic diagram of embodiment 4；
Attached drawing 5 is the circumferential magnet structure schematic diagram of embodiment 5；
Label declaration: the Ith ReBCO superconduction ring plate of 2-；The IIth ReBCO superconduction ring plate of 3-；The Ith insulating trip of 4-；5- the IIth is exhausted
Embolium；The Ith unit circumferential direction field magnet of 6-；The circumferential magnet of 7- the Ith；The IIth unit circumferential direction field magnet of 8-；The circumferential magnet of 9- the IIth；
The hollow magnetic plug of 10-；The 11- pulse power.
Specific embodiment
The present invention provides a kind of circumferential magnets based on ReBCO superconduction ring plate, below with reference to embodiment and attached drawing to this
Invention is described further.
Embodiment 1
ReBCO superconduction thin slice as shown in Fig. 1 is prepared, detailed process is as follows:
(1) sheet-like substrates 101 are produced using substrate material identical with second generation high-temperature superconducting coating, wherein substrate material
Material is Ni, NiW, Hastelloy or stainless steel；
(2) on substrate 101, using second generation high-temperature superconductor buffer layer preparation process buffer layer 102, wherein buffering
Layer is insulating properties metal oxide；
(3) on buffer layer 102, ReBCO film 103 is plated using second generation high-temperature superconducting thin film coating technology；
(4) up-protective layer 104 is plated on ReBCO film 103, wherein protective layer 104 is Ag films protective layer or Copper thin film
Protective layer to get arrive ReBCO superconduction thin slice 1.
Wherein second generation high-temperature superconductor buffer layer preparation process is ion beam assisted deposition (IBAD) or inclined substrate
(ISD) technology of deposition；The second generation high-temperature superconducting thin film coating technology is that Metallo-Organic Chemical Vapor deposits (MOCVD), arteries and veins
Impulse Photodeposition (PLD) or sputtering method.
Embodiment 2
ReBCO superconduction ring plate as shown in Figure 2 is prepared, detailed process is as follows:
Wherein, the Ith ReBCO superconduction ring plate 2 that 1 corner of D-shaped inner ring shown in Fig. 2-a is cut with positioning round orifice is specifically made
Standby process are as follows:
D-ring piece will be cut on 1 gained ReBCO superconduction thin slice of embodiment, inner ring radius is r1, outer ring radius is r2, circle
Ring width is w1；Being cut into radius in the straight line of D-shaped inner ring and 1 junction i.e. 1 inner ring corner of circular arc is r3Circle
Location hole 201 to get arrive the Ith ReBCO superconduction ring plate 2 as shown in Fig. 2-a.
Wherein, 2 corners of D-shaped inner ring shown in Fig. 2-b are cut with the IIth ReBCO superconduction ring plate 3 tool of positioning round orifice
Production procedure are as follows:
D-ring piece will be cut on 1 gained ReBCO superconduction thin slice of embodiment, inner ring radius is r4, outer ring radius is r5, circle
Ring width is w2；Being cut into radius in the straight line of D-shaped inner ring and 2 junctions i.e. 2 inner ring corners of circular arc is r6、r7's
Circular locating openings 301,302 to get arrive the IIth ReBCO superconduction ring plate 3 as shown in Fig. 2-b, wherein the IIth ReBCO superconducting ring
Piece 3 is axial symmetry ring plate.
Embodiment 3
Prepare insulating trip as shown in Figure 3: organic insulation film such as PPLP insulating material film, brown paper or epoxy is thin
Piece is cut into the identical D-shaped insulating trip of ReBCO superconducting ring plate shape, size shown in same embodiment 2.
Wherein, Fig. 3-a is and identical Ith insulation of 2 shape of the Ith ReBCO superconduction ring plate, size shown in Fig. 2-a
Piece 4；Fig. 3-b be and 3 shape of the IIth ReBCO superconduction ring plate, identical IIth insulating trip 5 of size shown in Fig. 2-b.
Embodiment 4
The circumferential magnet of preparation as depicted in fig. 4-a, wherein 4-b is the top view of circumferential direction magnet shown in 4-a；Specifically:
(1) it is first horizontally arranged the 1st the Ith insulating trip 4, the 1st the Ith ReBCO superconduction ring plate 2 is stacked on the 1st the Ith absolutely
The top of embolium 4, when stacking up and down, left and right it is perfectly aligned；
(2) from the bottom to top, stack gradually the 2nd the Ith insulating trip 4, the 2nd the Ith ReBCO superconduction ring plate 2 ..., N piece
Ith insulating trip 4, the Ith ReBCO superconduction ring plate 2 of N piece, the Ith insulating trip 4 of N+1 piece complete insulating trip and ReBCO superconduction ring plate
Be alternately stacked；Gained stacked body is obtained into the Ith unit circumferential direction field magnet 6 using flange, bolt fixation；Wherein N piece ReBCO is super
The stacking direction of lead ring piece 2 is consistent；
(3) 8 identical Ith unit circumferential direction field magnets 6 are prepared according to step (1)~(2), by gained unit toroidal field magnetic
Body 6 is circumferentially uniformly distributed, fixes to obtain the Ith circumferential magnet 7；
(4) operation with closed ring of the Ith circumferential magnet 7 is realized in such a way that flux pump technology is by internal excitation, specifically:
Flux pump includes hollow magnetic plug 10 and the pulse power 11, and the outer radius of hollow magnetic plug 10 should be less than the Ith circumferential magnet 7
The inside radius of circular locating openings 201, so as to hollow magnetic plug can circumferential spiral shell be inserted into circumferential magnet circular locating openings around ground；
The pulse power 11 provides alternating current for hollow magnetic plug, when wherein output current wave rising time is much smaller than failing edge
Between；It is carried out by way of periodical excitation, wherein each period excitation increases the magnetic field of circumferential magnet, when circumferential magnet
Magnetic field when reaching requirement, without removing hollow magnetic plug 10, close the pulse power 11, the electric current of superconductive pellet can be made to protect
Hold it is constant, maintain a stable magnetic field, avoid manual operation bring influence.
Embodiment 5
According to method same as Example 4, the IIth insulating trip 5, the IIth ReBCO superconduction ring plate 3 are stacked, and fixation obtains
The IIth unit circumferential direction field magnet 8 as shown in Fig. 5-a circumferentially uniformly divides 8 identical IIth unit circumferential direction field magnets 8
Cloth, fixation obtain the IIth circumferential magnet 9；Wherein, 5-b is the top view of circumferential direction magnet shown in 5-a.
The operation with closed ring of the IIth circumferential magnet 9 is equally realized in such a way that flux pump technology is by internal excitation, specifically
It is whole to realize using 2 circumferential spiral shells of hollow magnetic plug 10 in the IIth 9 circular locating openings 301 and 302 of circumferential magnet of ground insertion
Body excitation.
Claims (7)
1. a kind of circumferential magnet based on ReBCO superconduction ring plate, which is characterized in that by multiple identical unit circumferential direction field magnet edges
Circumferential direction is uniformly distributed, combination is constituted, and the unit circumferential direction field magnet replaces heap by N piece ReBCO superconduction ring plate, N+1 piece insulating trip
Folded, fixation obtains, and wherein N is positive integer；
The ReBCO superconduction ring plate is D-ring piece, N+1 piece insulation plate shape, size with N piece ReBCO superconduction ring plate phase
Together.
2. the circumferential magnet according to claim 1 based on ReBCO superconduction ring plate, which is characterized in that the D-ring piece
1 turning of D-shaped inner ring or 2 corner's incising circular location holes.
3. the circumferential magnet according to claim 2 based on ReBCO superconduction ring plate, which is characterized in that the D-shaped inner ring 2
The D-ring piece axial symmetry of a turning incising circular location hole.
4. the circumferential magnet according to claim 1 based on ReBCO superconduction ring plate, which is characterized in that the ReBCO superconduction
Ring plate is made of substrate, buffer layer, ReBCO film and the protective layer being arranged successively from bottom to top；
The substrate material is Ni, NiW, Hastelloy or stainless steel；
The buffer layer is insulating properties metal oxide；
The protective layer is Ag films protective layer or Copper thin film protective layer；
The buffer layer is deposited using ion beam assisted deposition or inclined substrate deposition technique, and the ReBCO film utilizes
Metallo-Organic Chemical Vapor deposition, pulsed laser deposition or sputtering method deposition.
5. circumferential direction magnet according to claim 1, which is characterized in that the stacking direction one of the N piece ReBCO superconduction ring plate
It causes.
6. it is according to claim 1 circumferential direction magnet, which is characterized in that the insulating trip be organic insulation piece, brown paper or
Epoxy laminate.
7. circumferential direction magnet according to claim 1, which is characterized in that the circumferential direction magnet utilizes excitation inside flux pump,
Flux pump includes the pulse power and magnetic plug；Specifically: it is circumferential magnet that magnetic plug, which passes through circumferential magnet circular locating openings,
Excitation, the pulse power provide alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147579.9A CN109273188B (en) | 2018-09-29 | 2018-09-29 | Annular magnet based on ReBCO superconducting ring piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147579.9A CN109273188B (en) | 2018-09-29 | 2018-09-29 | Annular magnet based on ReBCO superconducting ring piece |
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| CN109273188A true CN109273188A (en) | 2019-01-25 |
| CN109273188B CN109273188B (en) | 2021-01-01 |
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| CN201811147579.9A Expired - Fee Related CN109273188B (en) | 2018-09-29 | 2018-09-29 | Annular magnet based on ReBCO superconducting ring piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136913A (en) * | 2019-06-18 | 2019-08-16 | 华北电力大学 | A kind of superconducting magnet based on D ring piece and the device and method using it |
| CN114360841A (en) * | 2021-11-30 | 2022-04-15 | 核工业西南物理研究院 | Detachable large-current plate type annular field magnet coil |
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2018
- 2018-09-29 CN CN201811147579.9A patent/CN109273188B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101577165A (en) * | 2009-03-20 | 2009-11-11 | 中国科学院电工研究所 | Superconducting magnet system of inserted YBCO-Bitter type high-temperature superconducting coil |
| US20120032770A1 (en) * | 2010-01-13 | 2012-02-09 | Korea Electrotechnology Research Institute | Coil bobbin for superconducting magnetic energy storage |
| CN106463182A (en) * | 2014-04-10 | 2017-02-22 | 托卡马克能量有限公司 | Efficient compact fusion reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136913A (en) * | 2019-06-18 | 2019-08-16 | 华北电力大学 | A kind of superconducting magnet based on D ring piece and the device and method using it |
| CN114360841A (en) * | 2021-11-30 | 2022-04-15 | 核工业西南物理研究院 | Detachable large-current plate type annular field magnet coil |
| CN114360841B (en) * | 2021-11-30 | 2022-11-18 | 核工业西南物理研究院 | Detachable large-current plate type annular field magnet coil |
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