CN109036758A - A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure - Google Patents
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure Download PDFInfo
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- CN109036758A CN109036758A CN201810777447.8A CN201810777447A CN109036758A CN 109036758 A CN109036758 A CN 109036758A CN 201810777447 A CN201810777447 A CN 201810777447A CN 109036758 A CN109036758 A CN 109036758A
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- conduction cooling
- superconducting magnet
- temperature superconducting
- horizontal positioned
- cooling plate
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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
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Abstract
The invention discloses a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structures, carry out conduction cooling using the structure of conduction cooling plate, conduction cooling column, cool guiding rod, can guarantee enough effective conduction cooling areas, so that the temperature difference of any two points is not more than 0.3K on high-temperature superconducting magnet.Refrigeration machine and magnet are connected using the conduction cooling plate of c-type structure, audaciously breach the way usually using copper pigtail flexible connection.Using the conduction cooling plate of c-type structure, not only effectively increase cooling capacity conduction surface, and convenient processing and manufacture, simple.Simultaneously, it is also considered that the flexible structure can absorb the relative displacement of the thermal contraction generation of magnet and conduction cooling plate.It will lead to loss of refrigeration capacity since refrigeration machine is horizontal positioned, which well solves refrigeration machine and places vertically and the horizontal positioned connectivity problem of high-temperature superconducting magnet, and can guarantee that high-temperature superconducting magnet running temperature meets requirement.
Description
Technical field:
The present invention relates to high temperature superconductor technology fields, and in particular to a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure,
Its design conduction structure can satisfy horizontal positioned high-temperature superconducting magnet and integrally cool down, it is ensured that high-temperature superconducting magnet temperature is most
When height is no more than 30K(stable state).
Background technique:
With the development of high-temperature superconductor band production technology, superconducting magnet made by high-temperature superconductor band relies on magnetic field strength
The advantages such as high and low operating cost, safe and reliable are to be widely used in the industries such as electric power transport, magnetic separation.
High-temperature superconducting magnet is to operate normally at low ambient temperatures, needs a set of cryogenic system to maintain the normal work of magnet
Make.Currently, conduction cooling is carried out with refrigeration machine for middle-size and small-size high-temperature superconducting magnet multiselect, this is because this refrigeration modes have
There is the features such as efficient, compact-sized and installation site is flexible.
But be flexibly connected between middle-size and small-size high-temperature superconducting magnet in the prior art and refrigeration machine by using copper pigtail, it needs
Refrigeration machine is horizontally arranged, but refrigeration machine is horizontal positioned to will lead to loss of refrigeration capacity.Therefore, be badly in need of find one kind can be fine
Ground solves refrigeration machine and places vertically and the horizontal positioned connectivity problem of high-temperature superconducting magnet.
Summary of the invention:
The present invention provides a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structures, suitable for horizontal positioned high-temperature superconductor
Magnet integrally cools down, it is ensured that high-temperature superconducting magnet temperature not more than 30K(stable state when).
The present invention is achieved by the following technical solutions:
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: include upper and lower stainless steel fixation
Orchid, is equipped with upper and lower oxygen-free copper conduction cooling end plate on the inside of upper and lower stainless steel mounting flange, between upper and lower oxygen-free copper conduction cooling end plate
Equipped with the tubular cured high-temperature superconducting magnet unit of insulation of several closed assemblies, each high-temperature superconducting magnet unit includes fixed
Position is enclosed and conduction cooling plate, forms double-cake coils after coiling superconductive tape on locating ring, double-cake coils are fixed on by locating ring step and are led
Integrally curing insulate after cold plate；The annular edge of the upper and lower stainless steel mounting flange is along position, upper and lower oxygen-free copper conduction cooling end plate
Annular edge annular distribution and mutual corresponding location hole are provided with along position along the annular edge of position and conduction cooling plate；Include
Several annular spreads simultaneously correspond to the hollow conduction cooling column being serially connected on conduction cooling plate in location hole, are set with and lead in each conduction cooling column
Cold bar, the both ends of each cool guiding rod sequentially pass through upper and lower oxygen-free copper conduction cooling end plate and upper and lower stainless steel mounting flange respectively
On location hole and stretched out outside upper and lower stainless steel mounting flange respectively, and the equal spinning in extension end at each cool guiding rod both ends is limited
Position nut；It is connected with c-type conduction cooling plate between upper and lower stainless steel mounting flange, is fixed on the outer surface of c-type conduction cooling plate for pacifying
The transition for filling refrigeration machine connects conduction cooling plate.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: upper and lower stainless steel mounting flange
Sunpender link block is mounted on outer end face.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: the double-cake coils locating ring is equal
For double-cake coils locating ring made of brass, double-cake coils locating ring both ends are respectively equipped with inside and outside step, and the double-cake coils are fixed
Position circle is outer to be wound with 1 ~ 2 layer of Kapton Tape；The double-cake coils locating ring is equipped with radial slot, the slit width of slot
For 1 ~ 2mm.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: with double cake lines after insulation solidification
The conduction cooling plate of circle is conduction cooling plate made of oxygen-free copper TU1, and conduction cooling plate thickness general 1 ~ 5mm is equipped with radial cut on conduction cooling plate
Seam, the slit width of slot are 1 ~ 2mm；Conduction cooling plate is equipped with gap, and gap arc length is not less than 140mm, for placing connector copper billet.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: the annular of oxygen-free copper conduction cooling end plate
Inner wall position is equipped with radial slot, and the slit width of slot is 1 ~ 2mm.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: cut on stainless steel mounting flange
There is gap, gap width is not less than 150mm, and depth is not less than 15mm.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: sunpender link block angle is 90 °.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: the cool guiding rod includes 16,
Wherein 12 use cool guiding rod made of oxygen-free copper TU1, and 4 using cool guiding rod made of stainless steel.
The double-cake coils locating ring is processed into using brass material, this is because brass has certain mechanical strength
While, also there is thermal conductive resin.1 ~ 2 layer of Kapton Tape is wound on the outside of locating ring, to guarantee the insulating properties of locating ring.
The internal diameter of locating ring is coil desired size, the general 5 ~ 8mm(of thickness is adjustable according to coil size), it is highly that coil is double
The sum of cake and coil conduction cooling plate height.In order to prevent ohm heat for being vortexed generation caused by changing magnetic field, locating ring is carried out
Slot processing, 1 ~ 2mm of slit width.In addition, locating ring both ends are equipped with inside and outside step for the ease of double-cake coils assembled in series.
The conduction cooling plate with double-cake coils is made of oxygen-free copper TU1 after edge solidifies, and is wanted according to locating ring size and coil
Determining conduction cooling plate inside/outside diameter is sought, the general 1 ~ 5mm of conduction cooling plate thickness (specifically depending on the circumstances) draws to prevent changing magnetic field
Ohm heat that the vortex risen generates, carries out slot processing, 1 ~ 2mm of slit width to conduction cooling plate.In addition, conduction cooling plate need to cut a gap,
Gap internal diameter is less than coil outer diameter+4mm, and gap arc length is not less than 140mm, is connect with guaranteeing to have enough spatial positions to place
Head.
Oxygen-free copper conduction cooling end plate internal-and external diameter is consistent with the conduction cooling plate of double-cake coils after solidifying with edge, and thickness general 8 ~
10mm carries out slot processing, 1 ~ 2mm of slit width to end plate to prevent ohm heat for being vortexed generation caused by changing magnetic field.
Stainless steel mounting flange internal-and external diameter is consistent with the conduction cooling plate of double-cake coils after solidifying with edge, and thickness general 15 ~
20mm.The sunpender link block is welded on flange, and two sunpender link block angles are 90 °.In addition, cutting one is slitted on flange
Mouthful, gap width is not less than 150mm, and depth is not less than 15mm, so that the c-type conduction cooling plate with open hole is connected to oxygen-free copper
Conduction cooling end plate.
Conduction cooling column is made of oxygen-free copper TU1, according to cool guiding rod outer diameter, determines conduction cooling column internal diameter size, and thickness is general
Not less than 3mm, to guarantee to have cooling capacity transmission area effective enough.
According to the size of magnet electromagnetic force, the geometric dimension and quantity of cool guiding rod are determined.It is manufactured according to high-temperature superconducting magnet
Experience selects the cool guiding rod of 16 φ 12mm that can meet use and wants for the high-temperature superconducting magnet of most 100 ~ 1000mm of outer diameter
It asks, and cool guiding rod both ends have screw thread, to add pretightning force.16 cool guiding rods, wherein 12 are made of oxygen-free copper TU1,4
Root is made of stainless steel.Oxygen-free copper bar is used to guarantee the structural stability of whole magnet for transmitting cooling capacity, stainless steel.
C-type conduction cooling plate with open hole is made of oxygen-free copper TU1, and conduction cooling plate is c-type, be primarily due to magnet and
Conduction cooling normal working temperature is less than 20K, can generate thermal contraction, by the flexible structure of c-type, absorbs because being heat-shrinked the opposite of generation
Displacement, so that overall structure stress is less than material allowable stress value.C-type conduction cooling plate is wide to be not less than 150mm, 3 ~ 6mm of thickness, length
Depending on magnet length.C-type conduction cooling board ends reserve open hole, convenient for fixing with the conduction cooling end plate connection.
G-M refrigeration machine transition connecting plate is equally made of oxygen-free copper TU1, and shape is c-type, for connect refrigeration machine and
High-temperature superconducting magnet can effectively increase conduction cooling using c-type conduction cooling plate compared to the way usually using copper pigtail flexible connection
Area, and it is convenient processing and manufacture, simple.G-M refrigeration machine transition connecting plate, wide to be not less than 70mm, plate thickness is generally 2 ~ 5mm, c-type
Plate spacing is not less than 50mm, can meet cooling capacity delivery request.
The present invention is suitable for horizontal positioned high-temperature superconducting magnet and integrally cools down, it is ensured that high-temperature superconducting magnet temperature highest
When no more than 30K(stable state).
While the present invention is positioned using double-cake coils locating ring, a channel of cooling capacity transmitting is also ensured.In addition, adopting
Conduction cooling is carried out with the structure of conduction cooling plate, conduction cooling column, cool guiding rod, can guarantee enough effective conduction cooling areas, so that high-temperature superconductor
The temperature difference of any two points is not more than 0.3K on magnet.Refrigeration machine and magnet are connected using the conduction cooling plate of c-type structure, audaciously broken through
Usually using the way of copper pigtail flexible connection.Using the conduction cooling plate of c-type structure, not only effectively increase cooling capacity conduction surface,
And it is convenient processing and manufacture, simple.Simultaneously, it is also considered that the flexible structure can absorb magnet and the thermal contraction of conduction cooling plate generates
Relative displacement.Will lead to loss of refrigeration capacity since refrigeration machine is horizontal positioned, the design well solve refrigeration machine places vertically with
High-temperature superconducting magnet is horizontally arranged connectivity problem, and can guarantee that high-temperature superconducting magnet running temperature meets requirement.
The invention has the advantages that
The present invention is audaciously breached and is connected usually using copper pigtail flexibility using the conduction cooling plate connection refrigeration machine and magnet of c-type structure
The way connect.And cooling capacity transmitting, not only by locating rack, while using conduction cooling plate, the structure of conduction cooling column, conduction cooling compression bar is led
It is cold, it can guarantee enough effective conduction cooling areas, meet superconducting magnet cooling capacity demand.In addition, conduction structure part of the invention has
There is design simple, easy processing, easy for installation.
Detailed description of the invention:
Fig. 1 is main view of the invention.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of high temperature superconducting magnet unit of the present invention.
Specific embodiment:
Referring to attached drawing.
A kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure includes upper and lower stainless steel mounting flange 3, above and below
The inside of stainless steel mounting flange 3 is equipped with upper and lower oxygen-free copper conduction cooling end plate 4, is equipped between upper and lower oxygen-free copper conduction cooling end plate 4
Several tubular cured high-temperature superconducting magnet units of insulation of closed assembly, each high-temperature superconducting magnet unit includes locating ring
6 and conduction cooling plate 7, double-cake coils are formed after coiling superconductive tape 11 on locating ring, and double-cake coils are fixed on by 6 step of locating ring and are led
Integrally curing insulate after cold plate 7；The annular edge of the upper and lower stainless steel mounting flange is along position, upper and lower oxygen-free copper conduction cooling end plate
Annular edge annular distribution and mutual corresponding location hole are provided with along position along the annular edge of position and conduction cooling plate；Include
Several annular spreads simultaneously correspond to the hollow conduction cooling column 5 being serially connected on conduction cooling plate in location hole, are set in each conduction cooling column 5
Cool guiding rod 2, the both ends of each cool guiding rod 2 sequentially pass through upper and lower oxygen-free copper conduction cooling end plate respectively and upper and lower stainless steel is fixed
Location hole on flange simultaneously stretches out outside upper and lower stainless steel mounting flange respectively, and the equal spinning in extension end at 2 both ends of each cool guiding rod
There is stop nut；It is connected with c-type conduction cooling plate 8 between upper and lower stainless steel mounting flange, is fixed on the outer surface of c-type conduction cooling plate 8
Transition for installing refrigeration machine connects conduction cooling plate 9.
The stainless steel mounting flange 3, oxygen-free copper conduction cooling end plate 4 pass sequentially through the more lower end the cool guiding rod 2(bands
Have nut) it is placed.The conduction cooling plate 7 with double-cake coils passes through cool guiding rod 2 and double cakes after one insulation is solidified
Coil locating ring 6 is fixed on oxygen-free copper conduction cooling end plate 4.The conduction cooling column 5 of proper height is selected to go here and there on cool guiding rod, then, according to layer
Secondary to place the conduction cooling plate 7 and conduction cooling column 5 that double-cake coils are had after remaining insulation solidifies, adjacent double-cake coils place one
0.1mm thickness epoxy plate (shape, size are identical as coil), to guarantee the insulation between coil.Finally by oxygen-free copper conduction cooling end plate 4
Cool guiding rod 2 is passed sequentially through with stainless steel mounting flange 3 to be installed, and is finally integrally fixed magnet using nut.
Refrigeration machine transition conduction cooling is linked and packed, and fixes position 10 for refrigeration machine transition by the G-M refrigeration machine first
Connection conduction cooling plate 9 is connected on refrigeration machine second level cold head (refrigeration machine is hung vertically by outer Dewar and cold screen), then will have open
The c-type conduction cooling plate 8 of mouth through-hole connect the connection of conduction cooling plate 9 with refrigeration machine transition by bolt.
The magnet level for completing installation is pushed into cold screen, is carried out by cool guiding rod 2 and the c-type conduction cooling plate 8 of open hole
The installation of the conduction structure part of entire magnet cooling capacity transmitting is completed in connection.
Claims (8)
1. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure, it is characterised in that: include upper and lower stainless steel fixation
Orchid, is equipped with upper and lower oxygen-free copper conduction cooling end plate on the inside of upper and lower stainless steel mounting flange, between upper and lower oxygen-free copper conduction cooling end plate
Equipped with the tubular cured high-temperature superconducting magnet unit of insulation of several closed assemblies, each high-temperature superconducting magnet unit includes fixed
Position is enclosed and conduction cooling plate, forms double-cake coils after coiling superconductive tape on locating ring, double-cake coils are fixed on by locating ring step and are led
Integrally curing insulate after cold plate；The annular edge of the upper and lower stainless steel mounting flange is along position, upper and lower oxygen-free copper conduction cooling end plate
Annular edge annular distribution and mutual corresponding location hole are provided with along position along the annular edge of position and conduction cooling plate；Include
Several annular spreads simultaneously correspond to the hollow conduction cooling column being serially connected on conduction cooling plate in location hole, are set with and lead in each conduction cooling column
Cold bar, the both ends of each cool guiding rod sequentially pass through upper and lower oxygen-free copper conduction cooling end plate and upper and lower stainless steel mounting flange respectively
On location hole and stretched out outside upper and lower stainless steel mounting flange respectively, and the equal spinning in extension end at each cool guiding rod both ends is limited
Position nut；It is connected with c-type conduction cooling plate between upper and lower stainless steel mounting flange, is fixed on the outer surface of c-type conduction cooling plate for pacifying
The transition for filling refrigeration machine connects conduction cooling plate.
2. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: upper,
Sunpender link block is mounted on the outer end face of lower stainless steel mounting flange.
3. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: described
Double-cake coils locating ring is double-cake coils locating ring made of brass, and double-cake coils locating ring both ends are respectively equipped with inside and outside
Rank, the double-cake coils locating ring are wound with 1 ~ 2 layer of Kapton Tape outside；The double-cake coils locating ring is equipped with radial
Slot, the slit width of slot is 1 ~ 2mm.
4. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: edge is solid
Conduction cooling plate after change with double-cake coils is conduction cooling plate made of oxygen-free copper TU1, the general 1 ~ 5mm of conduction cooling plate thickness, on conduction cooling plate
It is equipped with radial slot, the slit width of slot is 1 ~ 2mm；Conduction cooling plate is equipped with gap, and gap arc length is not less than 140mm.
5. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: anaerobic
The annular inner wall position of copper conduction cooling end plate is equipped with radial slot, and the slit width of slot is 1 ~ 2mm.
6. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: stainless
Gap is cut on steel mounting flange, gap width is not less than 150mm, and depth is not less than 15mm.
7. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: sunpender
Link block angle is 90 °.
8. a kind of horizontal positioned high-temperature superconducting magnet cooling capacity transferring structure according to claim 1, it is characterised in that: described
Cool guiding rod includes 16, wherein 12 use cool guiding rod made of oxygen-free copper TU1,4 using cool guiding rod made of stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810777447.8A CN109036758B (en) | 2018-07-16 | 2018-07-16 | Cold volume transmission structure of high temperature superconducting magnet is placed to level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777447.8A CN109036758B (en) | 2018-07-16 | 2018-07-16 | Cold volume transmission structure of high temperature superconducting magnet is placed to level |
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| CN109036758A true CN109036758A (en) | 2018-12-18 |
| CN109036758B CN109036758B (en) | 2020-06-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111472344A (en) * | 2020-04-28 | 2020-07-31 | 中国矿业大学 | Method for extracting cold energy at inner side of upper freezing wall to strengthen lower freezing |
| CN112837883A (en) * | 2020-12-31 | 2021-05-25 | 江西联创光电超导应用有限公司 | Superconducting magnet system |
| CN117690689A (en) * | 2024-02-02 | 2024-03-12 | 山东奥新医疗科技有限公司 | Cold guide assembly for superconducting magnet |
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| US20140218145A1 (en) * | 2007-07-26 | 2014-08-07 | Emscan Limited | Magnet assembly |
| CN102737806A (en) * | 2012-06-11 | 2012-10-17 | 华中科技大学 | Structure for conducting and cooling high-temperature superconducting magnet |
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| CN111472344A (en) * | 2020-04-28 | 2020-07-31 | 中国矿业大学 | Method for extracting cold energy at inner side of upper freezing wall to strengthen lower freezing |
| CN112837883A (en) * | 2020-12-31 | 2021-05-25 | 江西联创光电超导应用有限公司 | Superconducting magnet system |
| CN117690689A (en) * | 2024-02-02 | 2024-03-12 | 山东奥新医疗科技有限公司 | Cold guide assembly for superconducting magnet |
| CN117690689B (en) * | 2024-02-02 | 2024-05-03 | 山东奥新医疗科技有限公司 | Cold guide assembly for superconducting magnet |
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