CN106449006A - Conduction cooling magnet based on ReBCO coating layer conductor sheet - Google Patents
Conduction cooling magnet based on ReBCO coating layer conductor sheet Download PDFInfo
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- CN106449006A CN106449006A CN201610884133.9A CN201610884133A CN106449006A CN 106449006 A CN106449006 A CN 106449006A CN 201610884133 A CN201610884133 A CN 201610884133A CN 106449006 A CN106449006 A CN 106449006A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
Abstract
The invention discloses a conduction cooling magnet based on a ReBCO coating layer conductor sheet, and belongs to the application field of a superconducting magnet. The magnet consists of superconducting sheets, insulating sheets and cooling sheets in a stacking manner and adopts a cylindrical structure; a rectangular connecting head extends out of one end of the outer side of a circular ring; the direction of the connecting head is opposite to a current lead end of the magnet; each cooling sheet adopts bare copper or bare copper alloy, or a bare copper sheet or a bare copper alloy sheet; the bare copper or bare copper alloy, or the bare copper sheet or the bare copper alloy sheet is arranged in the position of the circular ring; or the upper and lower surfaces of the circular ring are coated with an insulating layer; or only one surface of the circular ring is coated with the insulating layer. The conduction cooling magnets with three different structures are provided according to the different material structures of the cooling sheets; the cooling sheets are connected with a conduction cooling plate of a refrigerating machine; each superconducting sheet is conducted and refrigerated by the refrigerating machine so as to further refrigerate the overall magnet; the conduction cooling magnet is capable of simplifying the cooling equipment, simple and convenient to operate, high in efficiency and low in cost; and in addition, different temperature requirements of the magnet can be satisfied.
Description
Technical field
The invention belongs to superconducting magnet application, more particularly to a kind of conduction based on ReBCO coating conductor piece are cooled down
Magnet.
Background technology
With the development of high-temperature superconductor production technology, ReBCO with high current density (Rare Earth barium copper oxygen, Re is Y,
Sm or Nd) technology of preparing of coating conductor is improved, and be applied in the manufacturing technology of high-temperature superconducting magnet.Real at present
Hts tape is all banding, and therefore high-temperature superconducting magnet is commonly used superconducting tape and turns to double cake formulas or helix tube type knot
Structure, and conducting cooling magnet is made up of superconductive pellet (ReBCO coating conductor piece), cooling fin stacking.
What the cooling of high-temperature superconducting magnet was commonly used is to soak cooling, soaks medium generally liquid nitrogen or the liquid helium of cooling, liquid
Nitrogen chilling temperature is generally 77K, and liquid helium chilling temperature is generally 4.2K, but in below low temperature 4.2K, the cost of liquid helium cooling
Very high.At present in a lot of applications, conduction cooling magnet or replaces immersion cooling magnet, conducts and cold goes the magnet can
To realize the requirement of different chilling temperatures, temperature scalable in the range of 77K～4.2K.Superconducting magnet system is soaked with liquid helium
Relatively, the advantage of conduction cooling superconducting magnet system be the low temperature environment needed for high-temperature superconducting magnet do not use liquid helium but
Completed by G M refrigeration machine, the structure of Dewar type container used by which also become simple eliminate liquid helium vessel more, liquid nitrogen container,
The cold screen of liquid nitrogen is also replaced by the copper screen for being cooled down by refrigeration machine one-level cold head.So, solve the high temperature described in background technology and surpass
Magnetic conductor magnetic-field cooling problem at high temperature, improves the efficiency of high temperature magnet cooling further.
Content of the invention
It is an object of the invention to provide a kind of conduction based on ReBCO coating superconducting piece cools down magnet, it is characterised in that institute
It is cylinder type to state conduction cooling magnet, including superconductor line piece, cooling fin, superconductive pellet, flange and positioning tie bar；Wherein adjacent
Cooling fin between insert superconductive pellet, then each superconductive pellet weld successively, superconductive pellet and cooling fin are stacked successively, cooling
The union joint direction of piece is relative with current feed end all the time, and the welding position of adjacent superconductive pellet is the incision site of cooling fin；According to
This analogizes, and slices stack gradually superconductive pellet and cooling fin, and last upper and lower ends respectively weld a superconductor line piece, and addition orchid
Fix, the position of the location hole of above-mentioned each and diameter are identical；But incision site is different；Three positioning tie bars are through positioning
Hole, above-mentioned each is fixed together；The rectangle union joint connection refrigeration machine of each cooling fin, forms conduction cooling magnet；Described
The material structure at the annulus position of cooling fin have naked copper or naked copper alloy sheet or on its naked copper or naked copper alloy annulus following table
Face applies insulating barrier or the one side painting insulating barrier in its naked copper or naked copper alloy annulus, and another side does not apply three kinds of structures of insulating barrier,
Propose three kinds of organization plans of conduction cooling magnet.
The superconductive pellet produces square sheet-like substrates using with second filial generation high-temperature superconducting coating identical backing material；
According to size, square sheet-like substrates are cut into the different annulus lamellar of interior outer radius, and location hole is symmetrically opened, radially open
Otch, the soldering angle between incision site and superconductive pellet is related, the incision site difference of different superconductive pellets；Then using ready-made
Second filial generation high-temperature superconductor cushion preparation technology buffer layer on annulus；Then the ready-made second filial generation is adopted on the buffer layer
High-temperature superconducting thin film coating technology plates ReBCO thin film on the buffer layer, and then silver-plated, Copper thin film protective layer forms tool with this
There is the superconductive pellet of annulus lamellar；Wherein backing material is Ni, NiW, Hastelloy panel material or stainless steel material；The second filial generation
High-temperature superconductor cushion preparation technology is existing ion beam assisted deposition (IBAD) or inclined substrate deposition (ISD) skill
Art；The second filial generation high-temperature superconducting thin film coating technology is existing metal organic chemical vapor deposition (MOCVD), pulse laser
Sedimentation (PLD) or sputtering method.
The insulating trip is using existing PPLP insulant, organic insulation thin film, kraft paper or epoxy laminate；Insulating trip
Size identical with superconductive pellet, similarly, on insulating trip, be also equipped with centre bore as superconductive pellet, location hole；Insulating trip
Surface cuts 10.
The cooling fin is annulus laminated structure of the interior outer radius as superconductive pellet, and the lateral ends in annulus stretch out
Rectangle union joint, the direction of union joint is relative with the current feed end of magnet, and the rectangle union joint per piece is on the outside of annulus
Length difference；Cooling fin surface is along radial direction otch 10, and incision site is identical with the incision site of adjacent superconductive pellet, each
10 position of the otch difference of piece cooling fin, the angle of otch thinks that the welding of adjacent superconductive pellet reserves certain position and is defined；?
The ring textures of cooling fin symmetrically beat location hole, and the size of location hole is equivalently-sized with superconductive pellet upper Positioning holes, in cooling fin
Union joint position beat the hole that is located by connecting, using the method (copper conduction cooling braid over braid) being flexible coupling, the union joint of cooling fin is connected
Cryocooled plate.
The superconductor line piece is annulus laminated structure of the interior outer radius as superconductive pellet, processing technology and superconductive pellet phase
With, and the lateral ends in ring part stretch out rectangular end, source of welding current lead, wherein, buffer layer 13 on substrate 1；
Then ReBCO thin film 12, then silver-plated, Copper thin film protective layer 11 are plated on the buffer layer.
A kind of conduction based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the conduction cools down the cold of magnet
But piece ring part scribbles copper or the alcu alloy film (scheme 1) of insulating barrier using upper and lower surface；The conduction cools down the concrete of magnet
Structure：One face down what the first superconductor line piece 1 had ReBCO coating first, then first piece cooling fin 2 is stacked on the first surpasses
Below guide wire piece 1, alignment 1 electric current of the first superconductor line piece of the otch of the first cooling fin 2 transmits the otch to downside,
The union joint direction of the first cooling fin is relative with 1 current feed end of the first superconductor line piece, then the first superconductive pellet 3 is stacked on
Below a piece of cooling fin 2, what the first superconductive pellet 3 had ReBCO coating one faces up, and is directed at the another of 2 otch of the first cooling fin
Side, by the first superconductive pellet 3 have ReBCO coating when the while welding for having ReBCO coating with the first superconductor line piece 1, weld
Position is the incision site of the first cooling fin 2；Then the second cooling fin 4 is stacked on below the first superconductive pellet 3, the second cooling
One side alignment 3 electric current of the first superconductive pellet of the otch of piece 4 transmits the otch to downside, then the second superconductive pellet 5 is stacked on second
Below cooling fin 4, what second superconductive pellet 5 had ReBCO coating one faces down, and second superconductive pellet 5 is had the one of ReBCO coating
Face makes second superconductive pellet 5 have one side and the first piece of ReBCO coating through the second cooling fin 4 and the otch of the second superconductive pellet 5
Superconductive pellet has the one side welding of ReBCO coating；The second cooling fin 6 is stacked below second superconductive pellet 5, the rest may be inferred, successively
Several pieces superconductive pellets, cooling fin is stacked, finally stacks the second superconductor line piece 7 again, the second superconductor line piece 7 has ReBCO coating
One faces up, and has the one side welding of ReBCO coating with the last a piece of superconductive pellet for stacking；Then three positioning tie bars 13 are passed through
The location hole 14 of above-mentioned each, adds flange 8 on the first superconductor line piece 1, and the second superconductor line piece 7 adds lower flange below
9, and with screw, each is fixed together；To fold on same plane per piece cooling fin union joint 11, positioning thereon is even
Connect hole 12 to align, using the method (copper conduction cooling braid over braid) being flexible coupling, cooling fin union joint be connected to the coldplate of refrigeration machine,
Form conduction cooling magnet；
A kind of conduction based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the ring part of its cooling fin is adopted
With naked copper or naked copper alloy sheet as conduction coolant (scheme 2)；The concrete structure of the conduction cooling magnet：First by
What one superconductive pellet current feed piece 1 had ReBCO coating one faces down, and adheres to the first insulating trip 15, the first insulating trip below again
The electric current of one side first superconductor line piece 1 of alignment of 15 otch transmits the otch to downside, then stacks the first cooling fin 2
Below the first insulating trip 15, the otch of first insulating trip of cut alignment 15 of the first cooling fin 2, the connection of the first cooling fin 2
The direction of head is relative with the current feed end of the first superconductor line piece 1, then the second insulating trip 16 is stacked below the first cooling fin,
The otch of first cooling fin of cut alignment 2 of the second insulating trip 16, then first piece superconductive pellet 3 is stacked under the 2nd insulating trip
Face, first piece superconductive pellet 3 has ReBCO painting laminated upward, and first piece superconductive pellet 3 is had ReBCO to apply laminated and the first superconduction
Lead wire 1 has the one side welding of ReBCO coating, and welding position is in first, second insulating trip and the incision site of the first cooling fin；
Again the 3rd insulating trip 17 is stacked on below first piece superconductive pellet 3,3 electricity of the first superconductive pellet of cut alignment of the 3rd insulating trip 17
Streaming is stacked on below the 3rd insulating trip 17 to the otch of downside, then by the second cooling fin 4, the otch pair of the second cooling fin 4
The otch of the 3rd insulating trip 17 is answered, then the 3rd insulating trip 17 is stacked on below the second cooling fin 4, then by second superconductive pellet heap
Being stacked in below the 3rd insulating trip 17, by that analogy, insulating trip is all stacked on the two sides of superconductive pellet, cooling fin, finally stacks again
Two superconductor line pieces 7, what the second superconductor line piece 7 had ReBCO coating one faces up, and has with a piece of superconductive pellet of last stacking
The one side welding of ReBCO coating；Then three positioning tie bars 13 are through the location hole 14 of above-mentioned each, in the first superconductor line piece
1 adds flange 8 above, and the second superconductor line piece 7 adds lower flange 9 below, and with screw, each is fixed together；Will be cold per piece
But piece union joint 11 is folded on same plane, and the hole 12 that is located by connecting thereon is alignd, and using the method being flexible coupling, (copper conduction cooling is compiled
Ribbon), cooling fin union joint is connected to the coldplate of refrigeration machine, forms conduction cooling magnet；
A kind of conduction based on ReBCO coating superconducting piece cools down magnet, it is characterised in that its cooling fin ring part upper
In lower surface, only one side applies insulating barrier (scheme 3)；The concrete structure of the conduction cooling magnet：First by the first superconductor line
What piece 1 had ReBCO coating one faces down, then one faces up what the first cooling fin 2 had insulating barrier 21 and be stacked on the first superconduction and draw
Below line piece 1, alignment 1 electric current of the first superconductor line piece of the otch of the first cooling fin 2 transmits the otch to downside, then
First insulating trip 15 is stacked on below the first cooling fin 2, the otch of the first insulating trip 15 corresponds to the otch of the first cooling fin 2,
The union joint direction of the first cooling fin 2 is relative with the current feed end of the first superconductor line piece 1, and the first superconductive pellet 3 is stacked on
Below first insulating trip 15, what first piece superconductive pellet 3 had ReBCO coating one faces up, and the first superconductive pellet 3 is had ReBCO coating
When the while welding for having ReBCO coating with the first superconductor line piece 1, welding position be
Incision site；Then the second cooling fin 4 is applied the one of insulating barrier 41 to face up, is stacked on below the first superconductive pellet 3, cooling
One side of the otch of piece is directed at the 1st superconductive pellet electric current and transmits otch to downside, then it is cold that the second insulating trip is stacked on second
But below piece 4, then the second superconductive pellet is stacked on below the second insulating trip, the rest may be inferred, finally stacks the second superconductor line again
Piece 7, what the second superconductor line piece 7 had ReBCO coating one faces up, and has ReBCO coating with a piece of superconductive pellet of last stacking
One side welding；Then three positioning tie bars 13 are added on the first superconductor line piece 1 through the location hole 14 of above-mentioned each
Flange 8, the second superconductor line piece 7 adds lower flange 9 below, and with screw, each is fixed together；To connect per piece cooling fin
11 fold on same plane, and the hole 12 that is located by connecting thereon is alignd, using the method (copper conduction cooling braid over braid) being flexible coupling, will
Cooling fin union joint is connected to the coldplate of refrigeration machine, forms conduction cooling magnet；
The invention has the beneficial effects as follows the high-temperature superconducting magnet described in this conduction cooling magnet solution background technology is in height
Magnetic-field cooling problem under temperature, improves the efficiency of high temperature magnet cooling further, and not only realizing the different chilling temperature of magnet will
Ask, and easy to operate, efficiency high, low cost.
Description of the drawings
Fig. 1 is the knot of single conduction cooling magnet (scheme 1) that the upper and lower surface of cooling fin ring part scribbles insulating barrier
Structure schematic diagram.
Fig. 2 cools down magnet (scheme 2) for the ring part of cooling fin using the single conduction of naked copper or naked copper alloy sheet
Structural representation.
Fig. 3 applies the single conduction cooling magnet (side of insulating barrier for only one side in the upper and lower surface of cooling fin ring part
Case 3) structural representation.
Fig. 4 is the structural representation of single superconductive pellet, and wherein, it is profile that a is front elevation, b.
Fig. 5 is the structural representation of single superconductor line piece, and wherein, it is profile that a is front elevation, b.
Fig. 6 is the structural representation of single cooling fin, and wherein, it is profile that a is front elevation, b.
Fig. 7 is the structural representation of insulating trip.
Specific embodiment
The present invention provides a kind of conduction based on ReBCO coating superconducting piece and cools down magnet, and the conduction cooling magnet is circle
Cylinder-type, including superconductor line piece, cooling fin, superconductive pellet, flange and positioning tie bar；Insert between wherein adjacent cooling fin super
Guide card, then each superconductive pellet weld successively, superconductive pellet and cooling fin are stacked successively, the union joint direction of cooling fin is all the time
Relative with current feed end, the welding position of adjacent superconductive pellet is the incision site of cooling fin；The rest may be inferred, blocks of heap successively
Uplap guide card and cooling fin, last upper and lower ends respectively weld a superconductor line piece, and addition is blue fixing, the positioning of above-mentioned each
The position in hole and diameter are identical；But incision site is different；Three positioning tie bars pass through location hole, and above-mentioned each is fixed on
Together；The rectangle union joint connection refrigeration machine of each cooling fin, forms conduction cooling magnet；The material at the annulus position of the cooling fin
Material structure has naked copper or naked copper alloy sheet or applies insulating barrier or naked at which in its naked copper or naked copper alloy annulus upper and lower surface
The one side of copper or naked copper alloy annulus applies insulating barrier, and another side does not apply three kinds of structures of insulating barrier, proposes conduction cooling magnet
Three kinds of organization plans.Specifically, superconductive pellet is that only simultaneously have ReBCO thin film, just has electric current to flow through on thin film, so 2 super
When guide card is welded, only aspectant welding, the electric current of a superconductive pellet can be just flowed into next super by welding position
Guide card, in addition to welding position, needs insulation, during 2 superconductive pellets are stacked face-to-face where cooling fin insertion elsewhere
Between, the one side for having ReBCO thin film of superconductive pellet is only cooled down, if cooling fin is naked copper or naked copper alloy sheet, is needed thereon below
Stacking insulating trip, i.e. superconductive pellet insulating trip cooling fin insulating trip superconductive pellet, if cooling fin top and bottom scribble insulating barrier, than
As insullac, then other insulation, i.e. superconductive pellet cooling fin superconductive pellet need not be being carried out, another is same, if cold
But have insulating barrier the one of piece faces up, i.e. superconductive pellet cooling fin insulating trip superconductive pellet；Annular portion below according to cooling fin
The three kinds of structures that divides constitute the conduction cooling of 3 kinds of different structures as shown in Fig. 1 (scheme 1), Fig. 2 (scheme 2), Fig. 3 (scheme 3)
Magnet.
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Fig. 1 show single conduction cooling magnet (scheme 1) that the upper and lower surface of cooling fin ring part scribbles insulating barrier
Structural representation.In figure, the cooling fin ring part of conduction cooling magnet scribbles the copper sheet (side of insulating barrier using upper and lower surface
Case 1)；The conduction cools down the concrete structure of magnet：First the first superconductor line piece 1 there is ReBCO coating (in Fig. 5：In superconduction
1 substrate of lead wire adheres to cushion 13, ReBCO thin film 12, protective layer 11 successively) one face down, then first piece is cooled down
Piece 2 (as shown in fig. 6, two sides scribbles insulating barrier 2 1) is stacked on below the first superconductor line piece 1, the otch 10 of the first cooling fin 2
One side alignment 1 electric current of the first superconductor line piece of (labels on all) transmits the otch to downside, the first cooling fin 2
Union joint direction is relative with 1 current feed end of the first superconductor line piece, then the first superconductive pellet 3 (as shown in Figure 4) is stacked on
Below a piece of cooling fin 2, what the first superconductive pellet had ReBCO coating one faces up, and is directed at the another of 2 otch of the first cooling fin
Side, by the first superconductive pellet 3 have ReBCO coating when the while welding for having ReBCO coating with the first superconductor line piece 1, weld
Position is the incision site of the first cooling fin 2；Then the second cooling fin 4 is stacked on below the first superconductive pellet 3, the second cooling
One side alignment 3 electric current of the first superconductive pellet of the otch of piece 4 transmits the otch to downside, then the second superconductive pellet 5 is stacked on second
Below cooling fin 4, what second superconductive pellet 5 had ReBCO coating one faces down, and second superconductive pellet 5 is had the one of ReBCO coating
Face makes second superconductive pellet 5 have one side and the first piece of ReBCO coating through the second cooling fin 4 and the otch of the second superconductive pellet 5
Superconductive pellet has the one side welding of ReBCO coating；The second cooling fin 6 is stacked below second superconductive pellet 5, then stack the second superconduction
Lead wire 7, what the second superconductor line piece 7 had ReBCO coating one faces up, and has ReBCO with a piece of superconductive pellet of last stacking
The one side welding of coating；Then three positioning tie bars 13 are through the location hole 14 of above-mentioned each, on the first superconductor line piece 1
Plus flange 8, the second superconductor line piece 7 adds lower flange 9 below, and with screw, each is fixed together；Will be per piece cooling fin
Union joint 11 is folded on same plane, and the hole 12 that is located by connecting thereon is alignd, and using the method being flexible coupling, (copper conduction cooling weaves
Band), cooling fin union joint is connected to the coldplate of refrigeration machine, forms conduction cooling magnet；
Fig. 2 show the ring part of cooling fin using naked copper or naked copper alloy sheet based on ReBCO coating superconducting piece
Conduction cooling magnet (scheme 2)；The concrete structure of the conduction cooling magnet：First the first superconductive pellet current feed piece 1 is had
The one of ReBCO coating (as 12 in Fig. 5) faces down, and adheres to the first insulating trip 15 (as shown in Figure 7), the first insulation below again
The electric current of one side first superconductor line piece 1 of alignment of the otch of piece 15 transmits the otch to downside, then by 2 heap of the 1st cooling fin
It is stacked in below the first insulating trip 15, the otch of first insulating trip of cut alignment 15 of the first cooling fin 2, the connection of the first cooling fin
The direction of head is relative with the current feed end of the first superconductor line piece 1, then the second insulating trip 16 is stacked below the first cooling fin,
The otch of first cooling fin of cut alignment 2 of the second insulating trip 16, then the first superconductive pellet 3 is stacked under the second insulating trip 16
Face, the first superconductive pellet 3 has ReBCO painting laminated upward, and the first superconductive pellet 3 is had ReBCO to apply laminated and the first superconductor line
Piece 1 has the one side welding of ReBCO coating, and welding position is in first, second insulating trip and the incision site of the first cooling fin；Again will
3rd insulating trip 17 is stacked on below first piece superconductive pellet 3, and 3 electric current of the first superconductive pellet of cut alignment of the 3rd insulating trip 17 is passed
The otch of downside is transferred to, then the second cooling fin 4 is stacked on below the 3rd insulating trip 17, the otch of the second cooling fin 4 corresponds to the
The otch of three insulating trips 17, then the 3rd insulating trip 17 is stacked on below the second cooling fin 4, then second superconductive pellet is stacked on
Below 3rd insulating trip 17, the like, the second superconductor line piece 7 is finally stacked, the second superconductor line piece 7 has ReBCO coating
One face up, and have the one side welding of ReBCO coating with the first superconductive pellet 3；Then three positioning tie bars 13 are through above-mentioned each
The location hole 14 of piece, adds flange 8 on the first superconductor line piece 1, and the second superconductor line piece 7 adds lower flange 9 below, is used in combination
Each is fixed together by screw；To fold on same plane per piece cooling fin union joint 11, the hole 12 that is located by connecting thereon
Alignment, using the method (copper conduction cooling braid over braid) being flexible coupling, cooling fin union joint is connected to the coldplate of refrigeration machine, is formed and pass
Conduction cooling but magnet；
Fig. 3 show in the upper and lower surface of cooling fin ring part only one side and applies the super based on ReBCO coating of insulating barrier
Conduction cooling magnet (scheme 3) of guide card, the concrete structure of the conduction cooling magnet：First the first superconductor line piece 1 is had
The one of ReBCO coating faces down, then one faces up what the first cooling fin 2 had insulating barrier 21 and be stacked on the first superconductor line piece 1
Below, alignment 1 electric current of the first superconductor line piece of the otch of the first cooling fin 2 transmits otch to downside, then by the
One insulating trip 15 is stacked on below the first cooling fin 2, the otch of otch first cooling fin 2 of correspondence of the first insulating trip 15, and first
The union joint direction of cooling fin 2 is relative with the current feed end of the first superconductor line piece 1, and the first superconductive pellet 3 is stacked on first
Below insulating trip 15, what first piece superconductive pellet 3 had ReBCO coating one faces up, and the first superconductive pellet 3 is had the one of ReBCO coating
Face and the first superconductor line piece 1 have the one side welding of ReBCO coating, and welding position is the first cooling fin, the cutting of the first insulating trip
Mouth position；Then the second cooling fin 4 is applied the one of insulating barrier 21 to face up, is stacked on below the first superconductive pellet 3, cooling fin
One side of otch is directed at the 1st superconductive pellet electric current and transmits otch to downside, then the second insulating trip 16 is stacked on the second cooling
Below piece 4, the second superconductor line piece 7 is then stacked again, what the second superconductor line piece 7 had ReBCO coating one faces up, and with
One superconductive pellet 3 has the one side welding of ReBCO coating；Then three positioning tie bars 13 are through the location hole 14 of above-mentioned each, the
One superconductor line piece 1 adds flange 8 above, and the second superconductor line piece 7 adds lower flange 9 below, and is fixed on each with screw
Together；To fold on same plane per piece cooling fin union joint 11, the hole 12 that is located by connecting thereon is alignd, be compiled using copper conduction cooling
Ribbon is flexible coupling, and cooling fin union joint is connected to the coldplate of refrigeration machine, forms conduction cooling magnet；
Fig. 4 show the structural representation of superconductive pellet, and wherein, it is profile that a is front elevation, b.The superconductive pellet 3 using with
Second filial generation conductor of high-temperature superconductor coat identical backing material, such as Ni, NiW, Hastelloy panel material, stainless steel material etc., surpass
Guide card 3 is produced square sheet-like substrates, according to size, square sheet-like substrates is cut into annulus of the interior outer radius for r1 and r2
Lamellar, and symmetrically open location hole 14 of 3 radiuses for r3, radially otch 10, the soldering angle between cut angle and superconductive pellet
Correlation, the width of otch isThe incision site difference of different superconductive pellets；Using ready-made second filial generation high-temperature superconductor cushion
Preparation technology, such as ion beam assisted deposition (IBAD), inclined substrate deposition technique (ISD), Surface oxidation epitaxy (SOE)
Deng buffer layer 13 on annulus；Using ready-made second filial generation high-temperature superconducting thin film coating technology on cushion 13, such as
Metal organic chemical vapor deposition (MOCVD), pulsed laser deposition (PLD) or sputtering method etc., plate ReBCO on the buffer layer
Thin film 12, then silver-plated, Copper thin film protective layer 11, the superconductive pellet with annulus lamellar is formed with this.
Fig. 5 show the structural representation of single superconductor line piece, and wherein, it is profile that a is front elevation, b.Using with super
Guide card identical technique, interior outer radius is identical with superconductive pellet, and the lateral ends in annulus stretch out rectangular sheet, and length is g, width
For h；Buffer layer 13 on 1 surface of substrate；Then ready-made second filial generation high-temperature superconducting thin film coating is adopted on the buffer layer
Technology plates ReBCO thin film 12, then silver-plated, Copper thin film protective layer 11 on the buffer layer.Annular portion in superconductor line piece
Divide and above 3 location holes 14 are made a call to, 10 angle of otch is mutually all with the cut angle of superconductive pellet
Fig. 6 show the structural representation of single cooling fin, and wherein, it is profile that a is front elevation, b.The cooling fin is adopted
Copper first, copper sheet is cut rectangular laminated structure as the material of conduction cooling；Then according to the parameter of cooling fin, will
The copper sheet of rectangle cuts into the annulus that interior outer radius is respectively r1 and r2, and the size of interior outer radius is equivalently-sized with superconductive pellet,
And annulus outside extension elongation be m, width for n rectangle union joint 11；In the ring textures of cooling fin, 3 are symmetrically opened again
Radius is the location hole 14 of r3, and the size of location hole is equivalently-sized with superconductive pellet, radially otch 10, cut angle and insulation
The angle of piece is identical, and cut angle isThe position of otch is identical with the incision site of superconductive pellet, then the connection in cooling fin
4 holes 12 that are located by connecting are made a call on 11 surfaces, and radius is that r4, union joint length m of each of which piece cooling fin is differed；And it is cold
But the concrete structure of the ring part of piece be naked copper or naked copper alloy sheet or its annulus upper and lower surface apply insulating barrier 21 or
The one side of its annulus applies insulating barrier 21, and another side does not apply three kinds of structures such as insulating barrier.Thus the present invention proposes 3 kinds of differences
The conduction cooling magnet of structure.
Fig. 7 is the structural representation of insulating trip.
The insulating trip is using existing PPLP insulant, organic insulation thin film, kraft paper or epoxy laminate；Insulating trip
Size identical with superconductive pellet, similarly, on insulating trip, be also equipped with centre bore of 3 location holes 14 as superconductive pellet, absolutely
Embolium surface cuts, the angle of otch thinks that the welding of adjacent superconductive pellet reserves certain position and is defined, and cut angle is
Claims (8)
1. a kind of conduction based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the conduction cooling magnet is cylinder
Build, including superconductor line piece, cooling fin, superconductive pellet, flange and positioning tie bar；Superconduction is inserted between wherein adjacent cooling fin
Piece, then each superconductive pellet weld successively, superconductive pellet and cooling fin are stacked successively, the union joint direction of cooling fin all the time with
Current feed end is relative, and the welding position of adjacent superconductive pellet is the incision site of cooling fin；The rest may be inferred, and slices are stacked gradually
Superconductive pellet and cooling fin, the position of the location hole of above-mentioned each and diameter are identical；But incision site is different；Finally upper and lower two
One superconductor line piece of each welding in end, and addition is blue fixing, three positioning tie bars pass through location hole, and above-mentioned each is fixed on one
Rise；The rectangle union joint connection refrigeration machine of each cooling fin, forms conduction cooling magnet；The material at the annulus position of the cooling fin
Structure has naked copper or naked copper alloy sheet or applies insulating barrier or in its naked copper in its naked copper or naked copper alloy annulus upper and lower surface
Or the one side of naked copper alloy annulus applies insulating barrier, another side does not apply three kinds of structures of insulating barrier, proposes the three of conduction cooling magnet
Plant organization plan.
2. conduction according to claim 1 based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the superconduction
Piece produces square sheet-like substrates using with second filial generation high-temperature superconducting coating identical backing material；Will be square according to size
Sheet-like substrates cut into the different annulus lamellar of interior outer radius, and symmetrically open location hole, radially notch, incision site with super
Soldering angle correlation between guide card, the incision site difference of different superconductive pellets；Then slow using ready-made second filial generation high-temperature superconductor
Rush layer preparation technology buffer layer on annulus；Then ready-made second filial generation high-temperature superconducting thin film coating is adopted on the buffer layer
Technology plates ReBCO thin film on the buffer layer, and then silver-plated, Copper thin film protective layer forms the superconduction with annulus lamellar with this
Piece；Wherein backing material is Ni, NiW, Hastelloy panel material or stainless steel material；The second filial generation high-temperature superconductor cushion system
Standby technique is existing ion beam assisted deposition or inclined substrate deposition technique；The second filial generation high-temperature superconducting thin film coating
Technology is existing metal organic chemical vapor deposition, pulsed laser deposition or sputtering method.
3. conduction according to claim 1 based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the insulation
Piece is using existing PPLP insulant, organic insulation thin film, kraft paper or epoxy laminate；The size of insulating trip and superconductive pellet phase
With similarly, being also equipped with centre bore as superconductive pellet, location hole on insulating trip；Insulating trip surface cuts.
4. conduction according to claim 1 based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the cooling
Piece is annulus laminated structure of the interior outer radius as superconductive pellet, and the lateral ends in annulus stretch out rectangle union joint, connection
The direction of head is relative with the current feed end of magnet, length difference of the rectangle union joint per piece on the outside of annulus；Cooling
Piece surface is along radial direction otch, and incision site is identical with the incision site of adjacent superconductive pellet, the otch position per a piece of cooling fin
Difference is put, the angle of otch thinks that the welding of adjacent superconductive pellet reserves certain position and is defined；Ring textures pair in cooling fin
Claim to beat location hole, the size of location hole is equivalently-sized with superconductive pellet upper Positioning holes, beats positioning at the union joint position of cooling fin
Connecting hole, using the method (copper conduction cooling braid over braid) being flexible coupling, the union joint of cooling fin is connected cryocooled plate.
5. conduction according to claim 1 based on ReBCO coating superconducting piece cools down magnet, it is characterised in that the superconduction
Lead wire is annulus laminated structure of the interior outer radius as superconductive pellet, and processing technology is identical with superconductive pellet, and in ring part
Lateral ends stretch out rectangular end, source of welding current lead, wherein, buffer layer on substrate；Then plate on the buffer layer
ReBCO thin film, then silver-plated, Copper thin film protective layer.
6. the conduction based on ReBCO coating superconducting piece described in a kind of claim 1 cools down magnet, it is characterised in that the biography
The cooling fin ring part of conduction cooling but magnet scribbles copper or the alcu alloy film of insulating barrier using upper and lower surface；The conduction cooling magnet
Concrete structure：One face down what the first superconductor line piece (1) had ReBCO coating first, then by first piece cooling fin (2) heap
It is stacked in the first superconductor line piece (1) below, first superconductor line piece (1) electric current of alignment of the otch of the first cooling fin (2)
The otch to downside is transmitted, the union joint direction of the first cooling fin (2) is relative with the first superconductor line piece (1) current feed end,
Again the first superconductive pellet (3) is stacked on below first piece cooling fin (2), what the first superconductive pellet (3) had ReBCO coating one faces
On, the another side of the first cooling fin (2) otch is directed at, the first superconductive pellet (3) is had the one side of ReBCO coating and the first superconduction to draw
Line piece (1) has the one side welding of ReBCO coating, and welding position is the incision site of the first cooling fin (2)；Then second is cooled down
Piece (4) is stacked on below the first superconductive pellet (3), alignment the first superconductive pellet (3) electric current of the otch of the second cooling fin (4)
The otch to downside is transmitted, then the second superconductive pellet (5) is stacked on the second cooling fin (4) below, second superconductive pellet (5) has
The one of ReBCO coating faces down, and second superconductive pellet (5) is had the one side of ReBCO coating through the second cooling fin (4) and second
The otch of superconductive pellet (5), makes second superconductive pellet (5) have the one side of ReBCO coating and first piece superconductive pellet to have ReBCO coating
Simultaneously weld；The second cooling fin (6) is stacked below in second superconductive pellet (5), the rest may be inferred, stack gradually several pieces superconductive pellets,
Cooling fin, finally stacks the second superconductor line piece (7) again, and what the second superconductor line piece (7) had ReBCO coating one faces up, and
There is the one side welding of ReBCO coating with a piece of superconductive pellet of last stacking；Then three positioning tie bars (13) pass through above-mentioned each
Location hole (14), add flange (8) above in the first superconductor line piece (1), the second superconductor line piece (7) is below plus lower flange
(9), and with screw each is fixed together；To fold on same plane per piece cooling fin union joint (11), determining thereon
Position connecting hole (12) alignment, using the method being flexible coupling of copper conduction cooling braid over braid, cooling fin union joint is connected to refrigeration machine
Coldplate, forms conduction cooling magnet.
7. the conduction based on ReBCO coating superconducting piece described in a kind of claim 1 cools down magnet, it is characterised in that its cooling
The ring part of piece is using naked copper or naked copper alloy sheet as conduction coolant；The concrete structure of the conduction cooling magnet：
One face down what the first superconductive pellet current feed piece (1) had ReBCO coating first, adhere to the first insulating trip below again
(15), the electric current of the first superconductor line piece (1) of alignment of the otch of the first insulating trip (15) transmits the otch to downside, connects
And the first cooling fin (2) is stacked on the first insulating trip (15) below, first insulating trip of cut alignment of the first cooling fin (2)
(15) otch, the direction of the union joint of the first cooling fin is relative with the current feed end of the first superconductor line piece (1), then by
Two insulating trips (16) are stacked below the first cooling fin, the otch of the first cooling fin of the cut alignment (2) of the second insulating trip (16), then
First superconductive pellet (3) is stacked on the second insulating trip (16) below, the first superconductive pellet (3) have ReBCO apply laminated upward, by the
One superconductive pellet (3) has ReBCO to apply the laminated one side welding for having ReBCO coating with the first superconductor line piece (1), and welding position exists
First, second insulating trip and the incision site of the first cooling fin；Again the 3rd insulating trip (17) is stacked on first piece superconductive pellet (3)
Below, cut alignment the first superconductive pellet (3) electric current of the 3rd insulating trip (17) transmits the otch to downside, then second is cooled down
Piece (4) is stacked on the 3rd insulating trip (17) below, and the otch of the second cooling fin (4) corresponds to the otch of the 3rd insulating trip (17), then
3rd insulating trip (17) is stacked on the second cooling fin (4) below, then second superconductive pellet is stacked on the 3rd insulating trip (17)
Below, by that analogy, insulating trip all being stacked on the two sides of superconductive pellet, cooling fin, finally stacks the second superconductor line piece (7) again,
What the second superconductor line piece 7 had ReBCO coating one faces up, and has the one of ReBCO coating with a piece of superconductive pellet of last stacking
Face is welded；Then three positioning tie bars (13) add through the location hole (14) of above-mentioned each above in the first superconductor line piece (1)
Upper flange (8), the second superconductor line piece (7) adds lower flange (9) below, and with screw, each is fixed together；Will be cold per piece
But piece union joint (11) is folded on same plane, and the hole that is located by connecting (12) thereon is alignd, using the soft of copper conduction cooling braid over braid
The method of connection, cooling fin union joint is connected to the coldplate of refrigeration machine, forms conduction cooling magnet.
8. the conduction based on ReBCO coating superconducting piece described in a kind of claim 1 cools down magnet, it is characterised in that its cooling
In the upper and lower surface of piece ring part, only one side applies insulating barrier；The concrete structure of the conduction cooling magnet：First by first
What superconductor line piece (1) had ReBCO coating one faces down, then one faces up what the first cooling fin (2) had insulating barrier and be stacked on
Below, first superconductor line piece (1) electric current of alignment of the otch of the first cooling fin (2) is transmitted first superconductor line piece (1)
To the otch of downside, then the first insulating trip (15) is stacked on the first cooling fin (2) below, the otch of the first insulating trip (15)
The otch of corresponding first cooling fin (2), the electric current of the union joint direction of the first cooling fin (2) and the first superconductor line piece (1) draws
Line end is relative, and the first superconductive pellet (3) is stacked on the first insulating trip (15) below, and first piece superconductive pellet (3) has ReBCO coating
One faces up, by the first superconductive pellet (3) have ReBCO coating with the first superconductor line piece (1) have ReBCO coating while
Welding, welding position is the first cooling fin, the incision site of the first insulating trip；Then the second cooling fin (4) is applied insulating barrier
One faces up, and is stacked on the first superconductive pellet (3) below, and alignment the first superconductive pellet electric current transmission of the otch of cooling fin is downward
The otch of side, then the second insulating trip is stacked on the second cooling fin (4) is stacked on the second insulating trip below, then by the second superconductive pellet
Below, the rest may be inferred, finally stacks the second superconductor line piece (7) again, and the second superconductor line piece (7) has the one side of ReBCO coating
Upward, and with the last a piece of superconductive pellet for stacking there is the one side welding of ReBCO coating；Then three positioning tie bars (13) are through upper
The location hole (14) of each being stated, flange (8) being added above in the first superconductor line piece (1), the second superconductor line piece (7) adds below
Lower flange (9), and with screw, each is fixed together；To fold on same plane per piece cooling fin union joint (11), its
On the hole that is located by connecting (12) alignment, using the method being flexible coupling of copper conduction cooling braid over braid, cooling fin union joint is connected to system
The coldplate of cold, forms conduction cooling magnet.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109215929A (en) * | 2018-09-29 | 2019-01-15 | 华北电力大学 | A kind of cooling magnet of the conduction based on ReBCO superconduction ring plate |
| CN109346264A (en) * | 2018-09-29 | 2019-02-15 | 华北电力大学 | A kind of cool-guiding type superconducting magnet based on annular super conduction piece |
| CN109346262A (en) * | 2018-09-29 | 2019-02-15 | 华北电力大学 | A kind of superconducting magnet based on ReBCO superconduction ring plate |
| CN109346263A (en) * | 2018-09-29 | 2019-02-15 | 华北电力大学 | A kind of cooling circumferential magnet of the conduction based on ReBCO superconduction D-ring piece |
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| CN106449006B (en) | 2018-06-22 |
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Effective date of registration: 20191213 Address after: 2 Zhuxin North Road, Changping District, Beijing Co-patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu Patentee after: North China Electric Power University Address before: 102206 Beijing city Changping District Zhu Daxinzhuang North Agricultural Road No. 2 Co-patentee before: Zhongtian Science and Technology Co., Ltd., Jiangsu Patentee before: North China Electric Power University Co-patentee before: Swcc Showa Cable Sys Co., Ltd. |