CN106449004B - A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces - Google Patents
A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces Download PDFInfo
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- CN106449004B CN106449004B CN201610639295.6A CN201610639295A CN106449004B CN 106449004 B CN106449004 B CN 106449004B CN 201610639295 A CN201610639295 A CN 201610639295A CN 106449004 B CN106449004 B CN 106449004B
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- 238000001816 cooling Methods 0.000 title claims abstract description 112
- 238000000576 coating method Methods 0.000 title claims abstract description 29
- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 239000008188 pellet Substances 0.000 claims abstract description 53
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 230000004907 flux Effects 0.000 claims abstract description 12
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229910000856 hastalloy Inorganic materials 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- -1 ReBCO coatings Substances 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims description 2
- 239000002887 superconductor Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000007735 ion beam assisted deposition Methods 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- FFWQPZCNBYQCBT-UHFFFAOYSA-N barium;oxocopper Chemical compound [Ba].[Cu]=O FFWQPZCNBYQCBT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 229920001721 polyimide Polymers 0.000 description 1
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- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/06—Films or wires on bases or cores
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The present invention relates to a kind of conduction cooling superconducting magnets based on ReBCO coating superconducting pieces.Superconductive pellet is annulus laminated structure；Cooling fin is to be equipped with connector in the side of annulus laminated structure, to be connect with refrigeration machine；And it is radially provided with joint-cutting in cooling fin upper edge, to avoid vortex is generated.The internal diameter and outer diameter all same of the annulus laminated structure of cooling fin and the annulus laminated structure of superconductive pellet.Cooling fin and superconductive pellet are alternately arranged to form conduction cooling superconducting magnet, and addition is blue above and below conduction cooling superconducting magnet, are connected and fixed by insulated tension pole between upper lower flange.The present invention adjusts low temperature using G M refrigeration machines, makes conduction cooling superconducting magnet induced current using flux pump technology and then generates magnetic field.The conduction cooling superconducting magnet of the present invention is simple in structure, compact, no bending radius limitation；And be not related to the weld of superconductor, therefore there is no connection resistance the problem of, reduce the heat energy loss of superconducting magnet.
Description
Technical field
The invention belongs to superconducting magnet technical field, more particularly to a kind of conduction cooling based on ReBCO coating superconducting pieces
Superconducting magnet.
Background technology
Superconductor technology is to prepare the important method of high-intensity magnetic field, closely bound up with the development of modern science.Under ultrastrong magnetic field,
The structure and state of substance are likely to occur great variation, have important work for finding and recognizing new phenomenon, disclose new rule
With.
In recent years the technology of preparing of ReBCO (Rare Earth barium copper oxygen, Re Y, Sm or Nd) coating conductor achieve it is great into
Exhibition.ReBCO coating conductors have very high critical current density, and good performance can be also kept under low temperature and high-intensity magnetic field.By
The high-temperature superconductor reliability of ReBCO coating conductors manufacture is high, of low cost, flexible strength is good and A.C.power loss is low, in reality
Extensive use in border.
High-temperature superconducting magnet generally use impregnates cooling, and cooling medium is generally liquid nitrogen or liquid helium, and cooling cost is very high.It is super
Magnetizer is powered by the way of current feed, and current feed is to be connected to low temperature from room temperature, and heat power is very big, while electric current
The Joule heat that lead generates when being powered can also become additional heating source, to improve the operating cost of refrigeration system.In addition, superconduction
The weld technology immature development of material, connection resistance are also to be difficult to overcome the problems, such as in superconducting magnet system.And by
Smaller in the n values of high-temperature superconductor, field decay is more apparent.
Invention content
In view of the shortcomings of the prior art, the present invention provides a kind of, the conduction based on ReBCO coating superconducting pieces cools down superconducting magnetic
Body.
The conduction cooling superconducting magnet：
Superconductive pellet based on ReBCO coatings is annulus laminated structure；Cooling fin is to be equipped in the side of annulus laminated structure
Connector, to be connect with refrigeration machine；And it is radially provided with joint-cutting in cooling fin upper edge, to avoid vortex is generated；And cooling fin
The internal diameter and outer diameter all same of annulus laminated structure and the annulus laminated structure of superconductive pellet；N+1 pieces cooling fin and N piece superconductive pellets are handed over
Conduction cooling superconducting magnet is formed for arrangement, N is positive integer；
It insulate between the cooling fin and superconductive pellet；
The stacking direction of all superconductive pellets is consistent；
Addition is blue above and below conduction cooling superconducting magnet, is connected and fixed by insulated tension pole between upper lower flange.
The superconductive pellet is to be sequentially prepared buffer layer, ReBCO coatings, protective layer on substrate to obtain；
The substrate is Ni pieces, NiW pieces, Hastelloy piece or stainless steel substrates；
The buffer layer is the metal oxide of insulating properties；
The protective layer is copper film layer or Ag films layer.
The cooling fin obtains to be coated with insulating layer in the upper and lower surface of thermally conductive sheet, and the thermally conductive sheet is copper sheet or aluminium flake.
A kind of application of the conduction cooling superconducting magnet based on ReBCO coating superconducting pieces：
The connector of cooling fin side is flexible coupling to the coldplate of G-M refrigeration machines, the cold that G-M refrigeration machines generate passes through
The cooling superconductive pellet of cooling fin conduction, is adjusted the temperature of conduction cooling superconducting magnet；
Hollow magnetic plug concentric co-axial is placed in the center hole of superconducting magnet, friendship is passed through to hollow magnetic plug
Time-dependent current, alternating current rising time are not equal to the failing edge time, net supercurrent are induced in superconductive pellet, passes through the period
Property be pumped into electric current, so that the electric current of conduction cooling superconducting magnet is constantly increased to desired value, cut off alternating current at this time, conduction is cold
But the constant current hold of superconducting magnet maintains a stable magnetic field；When the current attenuation of conduction cooling superconducting magnet, weight
New alternating current of connecting compensates；The outer diameter of the hollow magnetic plug is less than the internal diameter of superconductive pellet and cooling fin, axial long
Axial length of the degree more than cooling superconducting magnets.
Beneficial effects of the present invention are：
The advantages of present invention is by combining high-temperature superconductor ReBCO coating conductors, G-M refrigeration machines and flux pump three, application
Into the design of high-temperature superconducting magnet, new way is provided for the preparation of high magnetic field intensity.
The present invention breaks through the thinking set of the double cakes of superconduction of superconducting tape coiling, is designed as the structure of superconductive pellet, superconductive pellet
The conduction cooling superconducting magnet obtained with cooling fin interactive stacking is simple in structure, compact, and no bending radius limitation enormously simplifies
Processing technology；It is not related to the weld of superconductor, therefore asking there is no connection resistance especially with superconduction chip architecture
Topic, reduces the heat energy loss of superconducting magnet.
The conduction cooling superconducting magnet of the present invention provides low temperature environment by G-M refrigeration machines, between adjacent superconductive pellet
Cooling fin is added, cooling fin is connected with the conduction coldplate of G-M refrigeration machines, is conducted using G-M refrigeration machines cooling per a piece of super
Guide card, and then cooling entire magnet, improve superconducting magnet and cool down efficiency.The copper screen of G-M refrigeration machine level-one cold heads cooling replaces liquid
The cold screen of nitrogen eliminates liquid nitrogen or liquid helium vessel in conventional high-temperature superconducting magnet, compares expensive cryogenic media, drops significantly
Low cooling cost.The conduction cooling superconducting magnet of the present invention is adjustable within the temperature range of 77K~4.2K, adjusts temperature model
It encloses wide.
The present invention solves the problems, such as field decay in high-temperature superconductor closed loop magnet system using flux pump technology.Flux pump
Electric current is induced in superconducting magnet by the method for electromagnetic induction, is not necessarily to current feed and welding, is not only simplified superconducting magnet
Structure, and reduce the thermal losses of magnet.Since flux pump lead is not in direct contact with superconducting magnet, substantially reduces and draw
The heat bridge effect that tape comes；Due to the zero resistance effect of superconducting magnet, it is only necessary to which the output power of very little can export very big
Electric current, to save expensive superconduction power supply expense；Flux pump facilitates adjusting, convenient for the benefit in superconducting magnet current attenuation
It repays.
The present invention has the advantages that at low cost, efficient, easy to operate.
Description of the drawings
Fig. 1 is the process schematic diagram of superconductive pellet；Wherein, a-1 is the front view of rectangular sheet-like substrates semi-finished product, a-2
For the sectional view of rectangular sheet-like substrates semi-finished product；B-1 is the front view of substrate, and b-2 is the sectional view of substrate；C-1 is on substrate
Front view after buffer layer, c-2 are the sectional view after buffer layer on substrate；D-1 is the front view of superconductive pellet；d-2
For the sectional view of superconductive pellet.
Fig. 2 is the schematic diagram of cooling fin；Wherein, a is front view, and b is sectional view.
Fig. 3 is a kind of schematic diagram of the conduction cooling superconducting magnet based on ReBCO coating conductor pieces.
A is to use flux pump technology for a kind of conduction cooling superconducting magnet excitation based on ReBCO coating conductor pieces in Fig. 4
Schematic diagram；B is the alternating current schematic diagram for being pumped into flux pump.
Sectional view described above is the sectional view along central axes direction.
Label declaration：1- substrates, 2- buffer layers, 3-ReBCO coatings, 4- protective layers, 5- thermally conductive sheets, 6- insulating layers, 7- are super
Guide card, 8- cooling fins, 9- flanges, 10- insulated tension poles, 11- flange location holes, 12- connectors, 13- connector location holes, 14-
Coldplate, 15- level-one cold heads.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.It is emphasized that following the description
It is only exemplary, the range being not intended to be limiting of the invention and its application.
Superconductive pellet 7 and cooling fin 8 are prepared first, it is as follows：
1, the processing flow of the superconductive pellet 7 based on ReBCO coatings is as shown in Figure 1.
(1) material of substrate 1 uses but is not limited to Ni, NiW, Hastelloy or stainless steel, is produced first such as Fig. 1 a-1
With rectangular sheet-like substrates semi-finished product shown in Fig. 1 a-2；
(2) rectangular sheet-like substrates semi-finished product are cut into the annulus sheet that inside radius is r2, outer radius is r1, be made as schemed
Substrate 1 shown in 1b-1 and Fig. 1 b-2；
(3) ion beam assisted deposition (IBAD), inclined substrate deposition technique (ISD), Surface oxidation epitaxy are used
(SOE), the techniques such as pulsed laser deposition (PLD) or sputtering method (Sputtering), the buffer layer 2 on substrate 1 are such as schemed
Shown in 1c-1 and Fig. 1 c-2；Buffer layer 2 generally uses the metal oxide of insulating properties, including but not limited to Y2O3、YSZ、CeO2Or
YSZ；
(4) it uses the techniques such as metal organic chemical vapor deposition (MOCVD) to plate ReBCO coatings 3 on the buffer layer 2, connects
Silver-plated on ReBCO coatings 3 or Copper thin film as protective layer 4, obtains the annulus sheet that inside radius is r2, outer radius is r1
Superconductive pellet 7, as shown in Fig. 1 d-1 and Fig. 1 d-2.
The processing flow of cooling fin 8 is as shown in Figure 2.
Thermally conductive sheet 5 in cooling fin 8 is using the high flaky material of thermal conductivity, including but not limited to copper sheet, aluminium flake.Such as Fig. 2
Shown, in cooling fin 8, annulus laminated structure and connector 12 are integrated machine-shaping.First, thermally conductive sheet 5 is processed into interior half
The annulus laminated structure that diameter is r2, outer radius is r1, and the side of annulus laminated structure stretch out a length be a, width b
Rectangle connector 12；In annulus laminated structure, the joint-cutting that a width is c is opened positioned at the relative position of connector 12, and
The central axes of joint-cutting are overlapped with the central axes of connector 12；Joint-cutting can prevent cooling fin 8 because generating whirlpool under external magnetic field
It flows and reduces cooling effect.Then insulating layer coating 6 is applied in the upper and lower surface of thermally conductive sheet 5, to realize between cooling fin 8 and superconductive pellet 7
Insulation.Insulated paint, including but not limited to polyimides may be used in insulating layer 6.Four radiuses are finally made a call on connector 12
For the connector location hole 13 of r3.
It is alternately arranged cooling fin 8 and superconductive pellet 7 to form conduction cooling superconducting magnet, ensures conduction cooling superconducting magnet
In, each circular ring structure consistency from top to bottom；The joint-cutting of all cooling fins 8 is aligned up and down, and connector 12 is unanimous between the higher and lower levels；And all superconductions
The stacking direction of piece 7 is consistent, i.e., superconductive pellet 7 has the one sides of ReBCO coatings 3 upward or downward.It is specific below by way of one
Implementing procedure illustrates：
(1) first cooling fin 8 is placed, the one side that first superconductive pellet 7 there are ReBCO coatings 3 upward, is stacked on
Above a piece of cooling fin 8；Then second cooling fin 8 is stacked on above first superconductive pellet 8, second superconductive pellet 7 is had
The one side of ReBCO coatings 3 upward, is stacked on above second cooling fin 8；Then third piece cooling fin 8 is stacked on second
Above superconductive pellet 7, the one side that third piece superconductive pellet 7 is had ReBCO coatings 3 upward, is stacked on above third piece cooling fin 8；With
This analogizes, and carries out the interactive stacking of multilayer cooling fin 8 and superconductive pellet 7, and a piece of cooling fin 8 is finally stacked on top, has been stacked
Finish, obtains conduction cooling superconducting magnet.When stacking, ensure each annulus consistency from top to bottom；The joint-cutting of all cooling fins 8 is aligned up and down,
Connector 12 is unanimous between the higher and lower levels.It, will be mixed with aluminum nitride powder (AlN) for gap that may be present between cooling fin 8 and superconductive pellet 7
Epoxy material is filled and is compacted in gap, to improve cooling effect.
(2) after stacking, upper and lower addition orchid 9 is fixed, and the inside radius of flange 9 is r2, and outer radius is more than r1；On flange 9,
The flange location hole 11 that three radiuses are r4 is uniformly opened in the region for the circle for being r1 beyond radius.The centre bore of upper lower flange 9 with
Superconductive pellet 7 and cooling fin 8 are aligned, and about 11 upper lower flange location hole is aligned.The upper and lower ends difference of three insulated tension poles 10
It across upper and lower corresponding flange location hole 11, and is bolted, by the biography of 8 stacked structure of multilayer superconductive pellet 7 and cooling fin
Cooling superconducting magnets are led to be fixedly clamped.
(3) connector 12 of every cooling fin 8 is folded up 90 ° to same plane, and made on each connector 12
Connector location hole 13 aligns, convenient for being connected to refrigeration machine.
It is illustrated in figure 3 a kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces, from bottom to up according to " cold
But the sequence of piece 8, superconductive pellet 7, cooling fin 8, superconductive pellet 7, cooling fin 8, superconductive pellet 7, cooling fin 8 " carries out multi-disc superconductive pellet 7
With the interactive stacking of cooling fin 8, conduction cooling superconducting magnet is obtained.Connector 12 is connected to by G-M using the method being flexible coupling
The level-one cold head 15 of the coldplate 14 of refrigeration machine, G-M refrigeration machines is connect with coldplate 14, and the cold that G-M refrigeration machines generate passes through
The cooling superconductive pellet 7 of the conduction of cooling fin 8, is adjusted the temperature of conduction cooling superconducting magnet, improves cooling efficiency.
The present invention is powered using flux pump technology to conduction cooling superconducting magnet.As shown in fig. 4 a, by hollow magnetic plug
It is placed in the center hole of conduction cooling superconducting magnet to concentric co-axial, the outer radius of the hollow magnetic plug is slightly less than superconduction
The inside radius r2 of piece 7 and cooling fin 8, axial length are more than the axial length of cooling superconducting magnets.Hollow magnetic plug is equivalent to
Transformer primary side winding, the superconductive pellet 7 in conduction cooling superconducting magnet are equivalent to vice-side winding.It is passed through friendship to hollow magnetic plug
Time-dependent current i1 controls power frequency, so that superconductive pellet 7 is induced electric current using electromagnetic induction and then generates magnetic field.Alternating current i1
Rising time be less than the failing edge time, current waveform is unlimited, and triangular waveform as shown in Figure 4 b may be used, and OA's is oblique
Rate is more than the slope of AB, i.e. current rise rate is more than fall off rate.In alternating current i1 uphill process (in Fig. 4 b OA sections),
Each superconductive pellet 7 flows through equal in magnitude, anticlockwise induced current；(the AB in Fig. 4 b during alternating current i1 declines
Section), each superconductive pellet 7 flows through equal in magnitude, clockwise induced current.Although alternating current i1 is generated during declining
Magnetic flux on the contrary, but be not enough to offset the magnetic flux that generates in alternating current i1 uphill process, to be induced in superconductive pellet 7
Anticlockwise net supercurrent i2.By being periodically pumped into alternating current i1, make the electric current of conduction cooling superconducting magnet
Desired value constantly is increased to, cuts off alternating current i1 at this time, the constant current hold of superconductive pellet 7 maintains a stable magnetic field.
When the current attenuation of superconductive pellet, recloses alternating current i1 and compensate.
The above, the only citing of the specific embodiment of the invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (3)
1. a kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces, which is characterized in that super based on ReBCO coatings
Guide card is annulus laminated structure；Cooling fin is to be equipped with connector in the side of annulus laminated structure, to be connect with refrigeration machine；And
It is radially provided with joint-cutting in cooling fin upper edge, to avoid vortex is generated；And the annulus laminated structure of cooling fin and the annulus of superconductive pellet
The internal diameter and outer diameter all same of laminated structure；N+1 pieces cooling fin and N piece superconductive pellets are alternately arranged to form the cooling superconducting magnetic of conduction
Body, N are positive integer；
It insulate between the cooling fin and superconductive pellet；
The stacking direction of all superconductive pellets is consistent；
Addition is blue above and below conduction cooling superconducting magnet, is connected and fixed by insulated tension pole between upper lower flange；
The excitation mode of the superconducting magnet uses flux pump technology, and hollow magnetic plug concentric co-axial is specially placed in biography
It leads in the center hole of cooling superconducting magnets, is passed through alternating current to hollow magnetic plug, alternating current rising time differs
In the failing edge time, net supercurrent is induced in superconductive pellet, by being periodically pumped into alternating current, keeps conduction cooling super
The induced current of magnetizer constantly increases to desired value, cuts off alternating current at this time, and the electric current of conduction cooling superconducting magnet is kept
It is constant, maintain a stable magnetic field；When the current attenuation of conduction cooling superconducting magnet, recloses alternating current and mended
It repays；Wherein, the outer diameter of the hollow magnetic plug is less than the internal diameter of superconductive pellet and cooling fin, and axial length is more than cooling superconducting magnetic
The axial length of body；
The type of cooling of the superconducting magnet is specifically, being flexible coupling the connector of cooling fin side to the cooling of G-M refrigeration machines
Plate, the cold that G-M refrigeration machines generate conduct cooling superconductive pellet by cooling fin, the temperature of conduction cooling superconducting magnet are adjusted
Degree.
2. a kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces according to claim 1, which is characterized in that
The superconductive pellet is to be sequentially prepared buffer layer, ReBCO coatings, protective layer on substrate to obtain；
The substrate is Ni pieces, NiW pieces, Hastelloy piece or stainless steel substrates；
The buffer layer is the metal oxide of insulating properties；
The protective layer is copper film layer or Ag films layer.
3. a kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces according to claim 1, which is characterized in that
The cooling fin obtains to be coated with insulating layer in the upper and lower surface of thermally conductive sheet, and the thermally conductive sheet is copper sheet or aluminium flake.
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| CN201610639295.6A CN106449004B (en) | 2016-08-05 | 2016-08-05 | A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces |
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| CN201610639295.6A CN106449004B (en) | 2016-08-05 | 2016-08-05 | A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces |
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| CN106449004B true CN106449004B (en) | 2018-07-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268204A (en) * | 1987-04-24 | 1988-11-04 | Furukawa Electric Co Ltd:The | Superconducting magnet |
| US4933657A (en) * | 1988-08-08 | 1990-06-12 | Kanazawa University | Eddy current type multilayered coil for generating intense AC magnetic field |
| CN1202709A (en) * | 1997-05-08 | 1998-12-23 | 住友电气工业株式会社 | Superconductive coil |
| CN1719553A (en) * | 2005-05-20 | 2006-01-11 | 清华大学 | High-temp. superconducting film conductor and preparing method thereof |
| CN102737805A (en) * | 2012-05-31 | 2012-10-17 | 华中科技大学 | Cold conducting framework and high-temperature superconducting magnet structural member constituted by same |
-
2016
- 2016-08-05 CN CN201610639295.6A patent/CN106449004B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268204A (en) * | 1987-04-24 | 1988-11-04 | Furukawa Electric Co Ltd:The | Superconducting magnet |
| US4933657A (en) * | 1988-08-08 | 1990-06-12 | Kanazawa University | Eddy current type multilayered coil for generating intense AC magnetic field |
| CN1202709A (en) * | 1997-05-08 | 1998-12-23 | 住友电气工业株式会社 | Superconductive coil |
| CN1719553A (en) * | 2005-05-20 | 2006-01-11 | 清华大学 | High-temp. superconducting film conductor and preparing method thereof |
| CN102737805A (en) * | 2012-05-31 | 2012-10-17 | 华中科技大学 | Cold conducting framework and high-temperature superconducting magnet structural member constituted by same |
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| CN106449004A (en) | 2017-02-22 |
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