CN107342146A - A kind of high-temperature superconducting magnet containing magnet ring - Google Patents
A kind of high-temperature superconducting magnet containing magnet ring Download PDFInfo
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- CN107342146A CN107342146A CN201710757315.4A CN201710757315A CN107342146A CN 107342146 A CN107342146 A CN 107342146A CN 201710757315 A CN201710757315 A CN 201710757315A CN 107342146 A CN107342146 A CN 107342146A
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- silicon steel
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- conductive board
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
The invention belongs to superconducting magnet technical field, and in particular to a kind of high-temperature superconducting magnet containing magnet ring.In the present invention, the first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board can reduce the radial component of high-temperature superconductor brow leakage field, improve the critical current of high-temperature superconductor winding overhang；The high-temperature superconducting magnet need not increase the quantity of high-temperature superconductor band in parallel, avoid between the high-temperature superconductor band of parallel connection and the problem of electric current distribution uneven and circulation easily be present；The high-temperature superconducting magnet does not change the structure of high-temperature superconductor winding or replaces high temperature superconducting materia, is applicable to the high-temperature superconductor winding of disk-type winding structure and solenoid structure.
Description
Technical field
The invention belongs to superconducting magnet technical field, more particularly to a kind of high-temperature superconducting magnet containing magnet ring.
Background technology
High-temperature superconducting magnet is made using high-temperature superconductor band, but high-temperature superconductor band has anisotropy, and high temperature surpasses
The radial component of magnetic conductor brow leakage field will greatly reduce the critical current of the position high-temperature superconductor band.Solves end at present
Measure of the stray field to high-temperature superconducting magnet performance impact mainly has two kinds.
First method is to increase bridging coil in the upper and lower end of high-temperature superconducting magnet.If by high-temperature superconducting magnet from sky
Between on be divided into upper, middle and lower segment, under normal circumstances each position by identical quantity high-temperature superconductor band coiling.Due to upper and lower
The high-temperature superconductor band of section current capacity in the presence of brow leakage field is less than interlude, then can be in upper and lower section of increase simultaneously
Join the quantity of high-temperature superconductor band.Assuming that stage casing wire turn uses 1 high-temperature superconductor band coiling to carry electric current I, then upper and lower section
2 high-temperature superconductor bands can be used to carry electric current I.But the structure is only applicable to disk-type winding structure, and high temperature in parallel
Electric current distribution inequality and circulation between superconducting tape easily be present, substantially increase the risk of high-temperature superconducting magnet at work.
Second method is close with first method, and high-temperature superconducting magnet equally is divided into upper, middle and lower segment, but will
Upper and lower section of high-temperature superconductor band replaces with the high temperature superconducting materia of other specifications.Assuming that stage casing wire turn uses 1 Bi systems high temperature
Superconducting tape coiling is to carry electric current I, then upper and lower section can use critical current higher Bi based high-temperature superconductive strips or Y
Based high-temperature superconductive strip coiling.But this method is equally only applicable to disk-type winding structure, and the Bi systems of more high critical current are high
Temperature superconductive band or Y based high-temperature superconductive strip prices are higher, reduce the economy of superconducting magnet.According to high-temperature superconductor
Band has been the product of peak performance, then this method will be unable to realize.In addition, the high-temperature superconductor band of different size is in geometry
Certain difference in size be present, so as to add the complexity of superconducting magnet structure.
The content of the invention
In view of this, can only pin for solving prior art the invention provides a kind of high-temperature superconducting magnet containing magnet ring
Brow leakage disk-type winding structure, electric current distribution inequality and circulation, superconduction high-temperature superconductor band in parallel easily be present
The problem of complex degree of structure of magnet is high.
The invention provides a kind of high-temperature superconducting magnet containing magnet ring, including：Core cylinder, high-temperature superconductor winding, the first silicon steel
Magnetic conductive board, the second silicon steel magnetic conductive board, the first insulation board and the second insulation board；
The high-temperature superconductor winding technique is in the outer wall of the core cylinder；
Second end of the first end of the core cylinder and the core cylinder has the first transverse concave groove and the second transverse concave groove；
The first silicon steel magnetic conductive board and first insulation board are in first transverse concave groove, first insulation
Plate is arranged between the first silicon steel magnetic conductive board and the high-temperature superconductor winding；
The second silicon steel magnetic conductive board and second insulation board are in second transverse concave groove, second insulation
Plate is arranged between the second silicon steel magnetic conductive board and the high-temperature superconductor winding；
The depth of first transverse concave groove and second transverse concave groove is more than 5mm；
The outward flange of the first silicon steel magnetic conductive board protrude the outward flange 5mm of the first end face of the high-temperature superconductor winding with
On；
The outward flange of the second silicon steel magnetic conductive board protrude the outward flange 5mm of the second end face of the high-temperature superconductor winding with
On.
Preferably, the high-temperature superconductor winding is spiral tube structure or disk-type winding structure.
Preferably, the core cylinder is hollow structure；
The cross section of the hollow structure is circular or track type.
Preferably, the thickness of the first silicon steel magnetic conductive board is more than or equal to the strip width of the high-temperature superconductor winding；
The thickness of the second silicon steel magnetic conductive board is more than or equal to the strip width of the high-temperature superconductor winding.
Preferably, the first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board are the silicon steel sheet overlapped.
Preferably, every number of lamina of the silicon steel sheet is more than two panels.
Preferably, the outward flange of first insulation board and the outer peripheral distance of the first silicon steel magnetic conductive board are 0mm；
The outward flange of second insulation board and the outer peripheral distance of the second silicon steel magnetic conductive board are 0mm.
Further, in addition to：First cover plate and the second cover plate；
First cover plate is connected with the first end of the core cylinder；
Second cover plate is connected with the second end of the core cylinder.
Preferably, first cover plate, the second cover plate and the core cylinder are formed in one structure.
Preferably, first cover plate and second cover plate are flange.
The invention provides a kind of high-temperature superconducting magnet containing magnet ring, including：Core cylinder, high-temperature superconductor winding, the first silicon steel
Magnetic conductive board, the second silicon steel magnetic conductive board, the first insulation board and the second insulation board；The high-temperature superconductor winding technique is in the core cylinder
Outer wall；Second end of the first end of the core cylinder and the core cylinder has the first transverse concave groove and the second transverse concave groove；Institute
The first silicon steel magnetic conductive board and first insulation board are stated in first transverse concave groove, first insulation board is arranged at institute
State between the first silicon steel magnetic conductive board and the high-temperature superconductor winding；The second silicon steel magnetic conductive board and second insulation board are embedded in
In second transverse concave groove, second insulation board be arranged at the second silicon steel magnetic conductive board and the high-temperature superconductor winding it
Between；The depth of first transverse concave groove and second transverse concave groove is more than 5mm；The outside of the first silicon steel magnetic conductive board
Edge protrudes more than the outward flange 5mm of the first end face of the high-temperature superconductor winding；The outward flange of the second silicon steel magnetic conductive board is convex
Go out more than the outward flange 5mm of the second end face of the high-temperature superconductor winding.In the present invention, the first silicon steel magnetic conductive board and the second silicon steel
Magnetic conductive board can reduce the radial component of high-temperature superconductor brow leakage field, improve the critical electricity of high-temperature superconductor winding overhang
Stream；The high-temperature superconducting magnet need not increase the quantity of high-temperature superconductor band in parallel, avoid parallel connection high-temperature superconductor band between hold
The problem of uneven electric current distribution and circulation easily be present；The high-temperature superconducting magnet does not change the structure of high-temperature superconductor winding or replaced high
Temperature superconductive material, it is applicable to the high-temperature superconductor winding of disk-type winding structure and solenoid structure.First transverse concave groove and
The depth of second transverse concave groove and the outward flange of the first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board difference
The first end face of the high-temperature superconductor winding and the outward flange of second end face are protruded apart from the too short distortion that can cause magnetic field and straight
The coil for being applied to the high-temperature superconductor winding closed on is connect, so as to have influence on the performance of the high-temperature superconductor winding.The present invention
In, the depth of first transverse concave groove and second transverse concave groove is more than 5mm；The outside of the first silicon steel magnetic conductive board
Edge protrudes more than the outward flange 5mm of the first end face of the high-temperature superconductor winding；The outward flange of the second silicon steel magnetic conductive board is convex
Go out more than the outward flange 5mm of the second end face of the high-temperature superconductor winding, can solve the problem that the distortion of field is applied directly to what is closed on
The coil of the high-temperature superconductor winding, the problem of so as to have influence on the high-temperature superconductor winding performance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described.
Fig. 1 is a kind of front view of the high-temperature superconducting magnet containing magnet ring provided in the present invention；
Fig. 2 is a kind of top view of the high-temperature superconducting magnet containing magnet ring provided in the present invention；
Fig. 3 is the front view of another high-temperature superconducting magnet containing magnet ring provided in the present invention；
Fig. 4 is the top view of another high-temperature superconducting magnet containing magnet ring provided in the present invention；
Fig. 5 is that the first silicon steel is led in a kind of high-temperature superconducting magnet and high-temperature superconducting magnet containing magnet ring provided in the present invention
Magnetic sheet and the second silicon steel magnetic conductive board are replaced by the effect contrast figure of ferromagnetic sheet；
Illustrate, 1. core cylinders；2. high-temperature superconductor winding；3. the first silicon steel magnetic conductive board；4. the second silicon steel magnetic conductive board；5. the
One insulation board；6. the second insulation board；7. the first cover plate；8. the second cover plate；9. the first transverse concave groove；10. the second transverse concave groove.
Embodiment
The invention discloses a kind of high-temperature superconducting magnet containing magnet ring, and disk-type winding can only be directed to for solving prior art
Electric current distribution inequality and circulation, the structure of superconducting magnet between the brow leakage of structure, high-temperature superconductor band in parallel easily be present
The problem of complexity is high.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 1 and Fig. 2, a kind of front view of high-temperature superconducting magnet containing magnet ring respectively provided by the invention and bow
View, including：Core cylinder 1, high-temperature superconductor winding 2, the first silicon steel magnetic conductive board 3, the second silicon steel magnetic conductive board 4, the first insulation board 5 and
Two insulation boards 6；
High-temperature superconductor winding 2 is wound in the outer wall of core cylinder 1；
The first end of core cylinder 1 and the second end of core cylinder 1 have the first transverse concave groove 9 and the second transverse concave groove 10；
In the first transverse concave groove 9, the first insulation board 5 is arranged at first for first silicon steel magnetic conductive board 3 and the first insulation board 5
Between silicon steel magnetic conductive board 3 and high-temperature superconductor winding 2；
In the second transverse concave groove 10, the second insulation board 6 is arranged at for second silicon steel magnetic conductive board 4 and the second insulation board 5
Between two silicon steel magnetic conductive boards 4 and high-temperature superconductor winding 2；
The depth of first transverse concave groove 9 and the second transverse concave groove 10 is more than 5mm；
More than the outward flange 5mm of the first end face of the outward flange protrusion high-temperature superconductor winding 2 of first silicon steel magnetic conductive board 3；
More than the outward flange 5mm of the second end face of the outward flange protrusion high-temperature superconductor winding 2 of second silicon steel magnetic conductive board 4.
Core cylinder 1 can use low temperature resistant metal or nonmetallic manufacture according to different demands, material usually used at present
Material includes stainless steel, copper alloy, aluminium alloy and fiberglass etc..
The physical dimension of first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 need to be coordinated with high-temperature superconductor winding 2.
It should be noted that the outside of the first end face of the outward flange protrusion high-temperature superconductor winding 2 of the first silicon steel magnetic conductive board 3
The distance of edge is equal to the depth of the first transverse concave groove 9, and the of the outward flange protrusion high-temperature superconductor winding 2 of the second silicon steel magnetic conductive board 4
The outer peripheral distance of biend is equal to the depth of the second transverse concave groove 10, can enter the Standard of the high-temperature superconducting magnet
Row preferably coordinates.
High-temperature superconductor winding 1 is spiral tube structure or disk-type winding structure.
Core cylinder 1 is hollow structure；
The cross section of hollow structure is circular or track type.
In the present embodiment, the cross section of hollow structure is circle.
In the present embodiment, high-temperature superconductor winding 1 is single solenoid structure, and its internal diameter is 220mm, external diameter 250mm, height
For 110mm.
In the present embodiment, the internal diameter of core cylinder 1 is 200mm, external diameter 220mm, is highly 126mm.
The overall electromagnetic design of the thickness of first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 and high-temperature superconductor winding 2 is close
Cut is closed.Identical with the iron core of conventional transformer, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 need reliable ground.
The thickness of first silicon steel magnetic conductive board 3 is more than or equal to the strip width of high-temperature superconductor winding 2；
The thickness of second silicon steel magnetic conductive board 4 is more than or equal to the strip width of high-temperature superconductor winding 2.
In the present embodiment, the silicon steel sheet used in the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 is Baosteel production
The internal diameter of B27G130 type silicon steel sheets, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 is 210mm, external diameter 260mm, thickness
Spend for 5mm.
In the present embodiment, the band of high-temperature superconductor winding 2 is the HT-CA type Bi2223 superconducting tapes of SUMITOMO CHEMICAL production,
Its critical current under the conditions of 77K self-fields is 220A, and high-temperature superconductor band width is 5mm.
First silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are the silicon steel sheet overlapped.
It should be noted that the silicon steel sheet of different interlayers there need to be certain dielectric strength, direct metal must not occur
Short circuit.
Every number of lamina of silicon steel sheet is more than two panels, so as to avoid along the circumferential direction occurring metal pathway, reduces vortex damage
Consumption.
First insulation board 5 is used to isolate the silicon steel magnetic conductive board 3 of high-temperature superconductor winding 2 and first, and the second insulation board 6 is used to isolate
The silicon steel magnetic conductive board 4 of high-temperature superconductor winding 2 and second.First insulation board 5 and the second insulation board 6 are typically made using fiberglass, with
Meet certain machinery and dielectric strength at low temperature.First insulation board 5 and the size of the second insulation board 6 need respectively with the first silicon steel
The silicon steel magnetic conductive board 4 of magnetic conductive board 3 and second is coordinated.
The outward flange of first insulation board 5 and the outer peripheral distance of the first silicon steel magnetic conductive board 3 are 0mm；
The outward flange of second insulation board 6 and the outer peripheral distance of the second silicon steel magnetic conductive board 4 are 0mm.
The thickness of first insulation board 5 and the second insulation board 6 is related to the dielectric strength of high-temperature superconductor winding 2, according to glass
Glass Steel material can be then designed according to 1kV/mm；The thickness of first insulation board 5 and the second insulation board 6 at least should be greater than 3mm,
To carry the electromagnetic force of the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 under magnetic fields, the first silicon steel magnetic conductive board is avoided
3 and second electromagnetic force caused by silicon steel magnetic conductive board 4 act directly on high-temperature superconductor winding 2.The first end of high-temperature superconductor winding 2
Face and second end face first place the first insulation board 5 and the second insulation board 6 with one heart respectively, the first insulation board 5 and the second insulation board 6
The first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are placed in outside respectively, and then overall concentric locking collar is mounted in the outer wall of core cylinder 1 again.
In the present embodiment, the first insulation board 5 and the second insulation board 6 are made using G10 fiberglass, the first insulation board 5 and the
The internal diameter of two insulation boards 6 is 210mm, external diameter 260mm, thickness 3mm.
Further, in addition to：First cover plate 7 and the second cover plate 8；
First cover plate 7 is connected with the first end of core cylinder 1；
Second cover plate 8 is connected with the second end of core cylinder 1.
First cover plate 7 and the second cover plate 8 can use low temperature resistant metal or nonmetallic manufacture, mesh according to different demands
Preceding commonly used material includes stainless steel, copper alloy, aluminium alloy and fiberglass etc..
In the present embodiment, core cylinder 1, the first cover plate 7 and the second cover plate 8 are fabricated separately using 304 stainless steels, the first cover plate
7 internal diameters are 200mm, external diameter 280mm, thickness 10mm；The internal diameter of second cover plate 8 is 200mm, external diameter 280mm, thickness are
10mm。
First cover plate 7, the second cover plate 8 and core cylinder 1 are formed in one structure.
It should be noted that core cylinder 1, the first cover plate 7 and the second cover plate 8 can be formed using a workpiece overall processing,
Can also it is separately machined after be stitched together；When separately machined, core cylinder 1, the first cover plate 7 and the second cover plate 8 can be adopted respectively
Made of different materials；The external diameter of first cover plate 7 and the second cover plate 8 is all higher than core cylinder 1, is separately mounted to the both ends of core cylinder 1.
First cover plate 7 and the second cover plate 8 are flange, for being axially fixed high-temperature superconductor winding 2.
The band of high-temperature superconductor winding 2 is Bi2223 superconducting tapes or ReBCO superconducting tapes.Wherein, Re represents rare earth member
Element, such as gadolinium Gd, yttrium Y.
In the embodiment of the present invention, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 can reduce high-temperature superconductor winding 2
The radial component of brow leakage field, improve the critical current of the end of high-temperature superconductor winding 2；The high-temperature superconducting magnet is without increasing simultaneously
Join the quantity of high-temperature superconductor band, avoid and easily have that electric current distribution is uneven between the high-temperature superconductor band of parallel connection and circulation is asked
Topic；The high-temperature superconducting magnet does not change the structure of high-temperature superconductor winding 2 or replaces high temperature superconducting materia, is applicable to disk-type winding
The high-temperature superconductor winding of structure and solenoid structure.The first silicon steel of embodiment of the present invention magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are adopted
The silicon steel sheet manufactured with lamination process, arbitrary shape can be manufactured into as needed, for the superconducting magnet of several meters of magnitude bores,
The cutting of silicon steel sheet is relatively easy to.Also, silicon steel sheet uses lamination process, certain microscopic gaps be present, there is provided cooling is logical
Road, the bulk temperature of high-temperature superconducting magnet can be made more uniform.The depth of first transverse concave groove 9 and the second transverse concave groove 10 with
And first the outward flange of silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 protrude the first end face and of high-temperature superconductor winding 2 respectively
The outward flange of biend apart from the too short coil that can cause the distortion in magnetic field and be applied directly to the high-temperature superconductor winding 2 closed on,
So as to have influence on the performance of high-temperature superconductor winding 2.In the embodiment of the present invention, the first transverse concave groove 9 and the second transverse concave groove 10
Depth is more than 5mm；The outward flange 5mm of the first end face of the outward flange protrusion high-temperature superconductor winding 2 of first silicon steel magnetic conductive board 3 with
On；More than the outward flange 5mm of the second end face of the outward flange protrusion high-temperature superconductor winding 2 of second silicon steel magnetic conductive board 4, can solve the problem that
The distortion of field is applied directly to the coil of the high-temperature superconductor winding 2 closed on, so as to have influence on asking for the performance of high-temperature superconductor winding 2
Topic.
Above is detailed retouch is carried out to a kind of one embodiment of high-temperature superconducting magnet containing magnet ring provided by the invention
State, a kind of another embodiment of the high-temperature superconducting magnet containing magnet ring provided by the invention will be described in detail below.
Refer to Fig. 3 and Fig. 4, a kind of front view of high-temperature superconducting magnet containing magnet ring respectively provided by the invention and bow
View, including：Core cylinder 1, high-temperature superconductor winding 2, the first silicon steel magnetic conductive board 3, the second silicon steel magnetic conductive board 4, the first insulation board 5 and
Two insulation boards 6；
High-temperature superconductor winding 2 is wound in the outer wall of core cylinder 1；
The first end of core cylinder 1 and the second end of core cylinder 1 have the first transverse concave groove 9 and the second transverse concave groove 10；
In the first transverse concave groove 9, the first insulation board 5 is arranged at first for first silicon steel magnetic conductive board 3 and the first insulation board 5
Between silicon steel magnetic conductive board 3 and high-temperature superconductor winding 2；
In the second transverse concave groove 10, the second insulation board 6 is arranged at for second silicon steel magnetic conductive board 4 and the second insulation board 5
Between two silicon steel magnetic conductive boards 4 and high-temperature superconductor winding 2；
The depth of first transverse concave groove 9 and the second transverse concave groove 10 is more than 5mm；
More than the outward flange 5mm of the first end face of the outward flange protrusion high-temperature superconductor winding 2 of first silicon steel magnetic conductive board 3；
More than the outward flange 5mm of the second end face of the outward flange protrusion high-temperature superconductor winding 2 of second silicon steel magnetic conductive board 4.
Core cylinder 1 can use low temperature resistant metal or nonmetallic manufacture according to different demands, material usually used at present
Material includes stainless steel, copper alloy, aluminium alloy and fiberglass etc..
The physical dimension of first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 need to be coordinated with high-temperature superconductor winding 2.
It should be noted that the outside of the first end face of the outward flange protrusion high-temperature superconductor winding 2 of the first silicon steel magnetic conductive board 3
The distance of edge is equal to the depth of the first transverse concave groove 9, and the of the outward flange protrusion high-temperature superconductor winding 2 of the second silicon steel magnetic conductive board 4
The outer peripheral distance of biend is equal to the depth of the second transverse concave groove 10, and this can make the Standard of the high-temperature superconducting magnet
Preferably coordinated.
High-temperature superconductor winding 2 is spiral tube structure or disk-type winding structure.
In the present embodiment, high-temperature superconductor winding 2 is disk-type winding structure.
Core cylinder 1 is hollow structure；
The cross section of hollow structure is circular or track type.
In the present embodiment, the cross section of hollow structure is track type.
In the present embodiment, high-temperature superconductor winding 1 is disk-type winding structure, and its internal diameter is 270mm, external diameter 310mm, straight line
Segment length 750mm, highly it is 80mm.
In the present embodiment, the internal diameter of core cylinder 1 is 250mm, external diameter 270mm, straight line segment length 750mm, is highly 96mm.
The overall electromagnetic design of the thickness of first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 and high-temperature superconductor winding 2 is close
Cut is closed.Identical with the iron core of conventional transformer, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 need reliable ground.
The thickness of first silicon steel magnetic conductive board 3 is more than or equal to the strip width of high-temperature superconductor winding 2；
The thickness of second silicon steel magnetic conductive board 4 is more than or equal to the strip width of high-temperature superconductor winding 2.
In the present embodiment, the silicon steel sheet used in the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 is Baosteel production
The cross section of B27G130 type silicon steel sheets, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 is track type, the first silicon steel magnetic conduction
The internal diameter of the silicon steel magnetic conductive board 4 of plate 3 and second is 260mm, external diameter 320mm, straight line segment length 750mm, thickness 5mm.
In the present embodiment, the band of high-temperature superconductor winding 2 is the HT-CA type Bi2223 superconducting tapes of SUMITOMO CHEMICAL production,
Its critical current under the conditions of 77K self-fields is 220A, and high-temperature superconductor band width is 5mm.
First silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are the silicon steel sheet overlapped.
It should be noted that the silicon steel sheet of different interlayers there need to be certain dielectric strength, direct metal must not occur
Short circuit.
Every number of lamina of silicon steel sheet is more than two panels, so as to avoid along the circumferential direction occurring metal pathway, reduces vortex damage
Consumption.
First insulation board 5 is used to isolate the silicon steel magnetic conductive board 3 of high-temperature superconductor winding 2 and first, and the second insulation board 6 is used to isolate
The silicon steel magnetic conductive board 4 of high-temperature superconductor winding 2 and second.First insulation board 5 and the second insulation board 6 are typically made using fiberglass, with
Meet certain machinery and dielectric strength at low temperature.First insulation board 5 and the size of the second insulation board 6 need respectively with the first silicon steel
The silicon steel magnetic conductive board 4 of magnetic conductive board 3 and second is coordinated.
The outward flange of first insulation board 5 and the outer peripheral distance of the first silicon steel magnetic conductive board 3 are 0mm；
The outward flange of second insulation board 6 and the outer peripheral distance of the second silicon steel magnetic conductive board 4 are 0mm.
The thickness of first insulation board 5 and the second insulation board 6 is related to the dielectric strength of high-temperature superconductor winding 2, according to glass
Glass Steel material can be then designed according to 1kV/mm；The thickness of first insulation board 5 and the second insulation board 6 at least should be greater than 3mm,
To carry the electromagnetic force of the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 under magnetic fields, the first silicon steel magnetic conductive board is avoided
3 and second electromagnetic force caused by silicon steel magnetic conductive board 4 act directly on high-temperature superconductor winding 2.The first end of high-temperature superconductor winding 2
Face and second end face first place the first insulation board 5 and the second insulation board 6 with one heart respectively, the first insulation board 5 and the second insulation board 6
The first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are placed in outside respectively, and then overall concentric locking collar is mounted in the outer wall of core cylinder 1 again.
In the present embodiment, the first insulation board 5 and the second insulation board 6 are made using G10 fiberglass, the first insulation board 5 and the
The internal diameter of two insulation boards 6 is 260mm, external diameter 320mm, straight line segment length 750mm, thickness 3mm.
Further, in addition to：First cover plate 7 and the second cover plate 8；
First cover plate 7 is connected with the first end of core cylinder 1；
Second cover plate 8 is connected with the second end of core cylinder 1.
First cover plate 7 and the second cover plate 8 can use low temperature resistant metal or nonmetallic manufacture, mesh according to different demands
Preceding commonly used material includes stainless steel, copper alloy, aluminium alloy and fiberglass etc..
In the present embodiment, core cylinder 1, the first cover plate 7 and the second cover plate 8 are fabricated separately using 304 stainless steels, wherein first
The internal diameter of cover plate 7 is 250mm, external diameter 350mm, straight line segment length 750mm, thickness 8mm；The internal diameter of second cover plate 8 is 250mm, outside
Footpath is 350mm, straight line segment length 750mm, thickness 8mm.
First cover plate 7, the second cover plate 8 and core cylinder 1 are formed in one structure.
It should be noted that core cylinder 1, the first cover plate 7 and the second cover plate 8 can be formed using a workpiece overall processing,
Can also it is separately machined after be stitched together；When separately machined, core cylinder 1, the first cover plate 7 and the second cover plate 8 can be adopted respectively
Made of different materials；The external diameter of first cover plate 7 and the second cover plate 8 is all higher than core cylinder 1, is separately mounted to the both ends of core cylinder 1.
First cover plate 7 and the second cover plate 8 are flange, for being axially fixed high-temperature superconductor winding 2.
The band of high-temperature superconductor winding 2 is Bi2223 superconducting tapes or ReBCO superconducting tapes.Wherein, Re represents rare earth member
Element, such as gadolinium Gd, yttrium Y.In the present embodiment, the band of high-temperature superconductor winding 2 produces for Shanghai Superconducting Technology Co., Ltd.
ST-5-E type YBCO superconducting tapes, its critical current under the conditions of 77K self-fields is 90A, the strip width of high-temperature superconductor winding 2
For 5mm.
In the embodiment of the present invention, the first silicon steel magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 can reduce high-temperature superconductor winding 2
The radial component of brow leakage field, improve the critical current of the end of high-temperature superconductor winding 2；The high-temperature superconducting magnet is without increasing simultaneously
Join the quantity of high-temperature superconductor band, avoid and easily have that electric current distribution is uneven between the high-temperature superconductor band of parallel connection and circulation is asked
Topic；The high-temperature superconducting magnet does not change the structure of high-temperature superconductor winding 2 or replaces high temperature superconducting materia, is applicable to disk-type winding
The high-temperature superconductor winding of structure and solenoid structure.The first silicon steel of embodiment of the present invention magnetic conductive board 3 and the second silicon steel magnetic conductive board 4 are adopted
The silicon steel sheet manufactured with lamination process, silicon steel sheet can greatly reduce the vortex thermal losses of high-temperature superconducting magnet structure, remain high
The running environment of temperature superconductive magnet；Silicon steel sheet cutting cutting is easy to process, can avoid the waste of material；Silicon steel sheet can be according to reality
Border demand increase and decrease number of laminations adjustment thickness；Silicon steel sheet has certain dielectric strength, and anti-corrosion in itself, it is not easy to influences magnet
Insulating properties.The depth and the first silicon steel magnetic conductive board 3 of first transverse concave groove 9 and the second transverse concave groove 10 and the second silicon steel are led
The first end face of high-temperature superconductor winding 2 and the outward flange of second end face are protruded in the outward flange of magnetic sheet 4 respectively can cause apart from too short
The distortion in magnetic field and the coil for being applied directly to the high-temperature superconductor winding 2 closed on, so as to have influence on the property of high-temperature superconductor winding 2
Energy.In the embodiment of the present invention, the depth of the first transverse concave groove 9 and the second transverse concave groove 10 is more than 5mm；First silicon steel magnetic conductive board
More than the outward flange 5mm of the first end face of 3 outward flange protrusion high-temperature superconductor winding 2；The outward flange of second silicon steel magnetic conductive board 4 is convex
Go out more than the outward flange 5mm of the second end face of high-temperature superconductor winding 2, can solve the problem that the distortion of field is applied directly to the high temperature closed on
The coil of superconduction winding 2, the problem of so as to have influence on high-temperature superconductor 2 performance of winding.
Above is detailed retouch is carried out to a kind of one embodiment of high-temperature superconducting magnet containing magnet ring provided by the invention
State, a kind of effect of the high-temperature superconducting magnet containing magnet ring provided by the invention will be described in detail below.
Referring to Fig. 5, it is in a kind of high-temperature superconducting magnet and high-temperature superconducting magnet containing magnet ring that are provided in the present invention
One silicon steel magnetic conductive board and the second silicon steel magnetic conductive board are replaced by the effect contrast figure of ferromagnetic sheet.In high-temperature superconducting magnet, high-temperature superconductor
The dielectric strength of winding is 1kV, and the first insulation board and the second insulation board are the thick G10 epoxy resin boards of 1mm, its internal diameter and outer
Footpath is respectively 1920mm and 1990mm；Superconducting tape used in high-temperature superconductor winding is the HT-CA types Bi-2223 of SUMITOMO CHEMICAL production
Superconducting tape, high-temperature superconductor winding are disk-type winding structure, and the internal diameter of high-temperature superconductor winding is 1940mm, external diameter 1980mm,
Thickness is 12mm, and the number of turn of high-temperature superconductor winding is 52 circles.The silicon steel sheet of first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board is equal
For 3 layers, every layer of thickness is 0.3mm；The internal diameter of first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board is 1920mm, and external diameter is equal
For 1990mm；Corresponding current in superconducting coil critical current standard criterion 1 μ V/cm of voltage is 204A.And by silicon steel magnetic conduction
It is the first DT4C pure iron that 1mm, internal diameter and external diameter are respectively 1920mm and 1990mm that plate and the second silicon steel magnetic conductive board, which are changed to thickness,
Magnetic conductive board and the 2nd DT4C pure iron magnetic conductive boards, the corresponding current in superconducting coil critical current standard criterion 1 μ V/cm of voltage are
190A.Result above can be seen that the present invention can be more efficiently using the first silicon steel magnetic conductive board and the second silicon steel magnetic conductive board
Improve the critical current of high-temperature superconductor winding.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
- A kind of 1. high-temperature superconducting magnet containing magnet ring, it is characterised in that including：Core cylinder, high-temperature superconductor winding, the first silicon steel magnetic conduction Plate, the second silicon steel magnetic conductive board, the first insulation board and the second insulation board；The high-temperature superconductor winding technique is in the outer wall of the core cylinder；Second end of the first end of the core cylinder and the core cylinder has the first transverse concave groove and the second transverse concave groove；In first transverse concave groove, first insulation board is set for the first silicon steel magnetic conductive board and first insulation board It is placed between the first silicon steel magnetic conductive board and the high-temperature superconductor winding；In second transverse concave groove, second insulation board is set for the second silicon steel magnetic conductive board and second insulation board It is placed between the second silicon steel magnetic conductive board and the high-temperature superconductor winding；The depth of first transverse concave groove and second transverse concave groove is more than 5mm；Protrude more than the outward flange 5mm of the first end face of the high-temperature superconductor winding in the outward flange of the first silicon steel magnetic conductive board；Protrude more than the outward flange 5mm of the second end face of the high-temperature superconductor winding in the outward flange of the second silicon steel magnetic conductive board.
- 2. high-temperature superconducting magnet according to claim 1, it is characterised in that the high-temperature superconductor winding is spiral tube structure Or disk-type winding structure.
- 3. high-temperature superconducting magnet according to claim 1, it is characterised in that the core cylinder is hollow structure；The cross section of the hollow structure is circular or track type.
- 4. high-temperature superconducting magnet according to claim 1, it is characterised in that the thickness of the first silicon steel magnetic conductive board is more than Equal to the strip width of the high-temperature superconductor winding；The thickness of the second silicon steel magnetic conductive board is more than or equal to the strip width of the high-temperature superconductor winding.
- 5. high-temperature superconducting magnet according to claim 1, it is characterised in that the first silicon steel magnetic conductive board and described second Silicon steel magnetic conductive board is the silicon steel sheet overlapped.
- 6. high-temperature superconducting magnet according to claim 5, it is characterised in that every number of lamina of the silicon steel sheet be two panels with On.
- 7. high-temperature superconducting magnet according to claim 1, it is characterised in that the outward flange of first insulation board with it is described The outer peripheral distance of first silicon steel magnetic conductive board is 0mm；The outward flange of second insulation board and the outer peripheral distance of the second silicon steel magnetic conductive board are 0mm.
- 8. high-temperature superconducting magnet according to claim 1, it is characterised in that also include：First cover plate and the second cover plate；First cover plate is connected with the first end of the core cylinder；Second cover plate is connected with the second end of the core cylinder.
- 9. high-temperature superconducting magnet according to claim 8, it is characterised in that first cover plate, the second cover plate and described Core cylinder is formed in one structure.
- 10. high-temperature superconducting magnet according to claim 9, it is characterised in that first cover plate and second cover plate For flange.
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| CN111868857A (en) * | 2018-03-20 | 2020-10-30 | Abb电网瑞士股份公司 | Electromagnetic induction device with low-loss winding |
| CN114496460A (en) * | 2022-03-18 | 2022-05-13 | 北京交通大学 | Magnetic shunt ring and superconducting transformer comprising same |
| CN114843061A (en) * | 2022-05-07 | 2022-08-02 | 中国科学院近代物理研究所 | Runway type section coil leading superconducting magnet for spectrometer |
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