CN113232517A - High-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system and levitation method - Google Patents
High-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system and levitation method Download PDFInfo
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- CN113232517A CN113232517A CN202110733276.0A CN202110733276A CN113232517A CN 113232517 A CN113232517 A CN 113232517A CN 202110733276 A CN202110733276 A CN 202110733276A CN 113232517 A CN113232517 A CN 113232517A
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- 238000005339 levitation Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002887 superconductor Substances 0.000 claims abstract description 73
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052742 iron Inorganic materials 0.000 claims abstract description 22
- 239000013078 crystal Substances 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims description 51
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 230000005405 multipole Effects 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000013590 bulk material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 206010012411 Derailment Diseases 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60L2200/26—Rail vehicles
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Abstract
The invention discloses a high-temperature superconducting bulk and strip stacking mixed double-sided magnetic levitation system and a levitation method, wherein the system comprises an upper cold source, an upper superconductor array, a permanent magnet track, a lower cold source and a lower superconductor array; the upper superconductor array and the lower superconductor array are composed of a plurality of horizontal superconducting blocks and superconducting tape vertical stacked bodies, and the permanent magnet track is composed of horizontal magnetized magnets and magnetic gathering soft iron. And a horizontal superconducting block and a superconducting tape vertical stacked body are respectively arranged right above and right below the magnetic gathering soft iron, the superconducting tape vertical stacked body and the horizontal superconducting block are respectively arranged right above and right below the horizontal magnetized magnet, and seed crystal points of the horizontal superconducting blocks face the permanent magnet track. The invention integrates the advantages of the high-temperature superconducting bulk and the high-temperature superconducting strip magnetic levitation system, provides main levitation force through the upper superconductor arrangement, provides main guiding force through the lower superconductor arrangement, and makes full use of the permanent magnet track external field under the conditions of not increasing dead weight and cost, so that the system obtains higher levitation performance and guiding performance at the same time.
Description
Technical Field
The invention relates to the field of application of a high-temperature superconducting magnetic levitation technology, in particular to a high-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system and a levitation method.
Background
The high-temperature superconducting magnetic suspension system has self-stabilizing suspension and guiding capability, and the theoretical maximum running speed of the translation system can reach 3000 km/h, so the high-temperature superconducting magnetic suspension system has wide application prospect in a ground ultra-high speed transportation system. However, the suspension bearing performance and the guidance performance of the high-temperature superconducting magnetic levitation system are relatively weak, and the improvement of the suspension and guidance performance is the key of the practical application. The prior art mainly comprises:
(1) according to the related patent and literature reports, when the C axes (22, 29, 27, 25) of the horizontal or vertical superconducting blocks or superconducting tapes are arranged parallel to the magnetization direction of the opposite magnets as shown in fig. 1 and 2, the system can obtain higher levitation performance. However, the above arrangement has the following disadvantages or drawbacks: in a superconducting block maglev system, a superconducting block seed crystal point 23 is generally horizontally arranged facing a permanent magnet track 3, the performance of the superconducting block seed crystal point tends to be saturated after the thickness of the superconducting block seed crystal point exceeds 10mm, when a superconductor is vertically arranged for use, mechanical processing is needed, the material performance is reduced, and the superconducting block is directly damaged seriously, when the width of a horizontal magnetized magnet 31 exceeds 10mm, on one hand, the use efficiency of the superconducting block is reduced, and on the other hand, higher material cost is brought; in addition, the system has guide instability in the pressing process, so that transverse drift is caused, the suspension force of the system is further attenuated, and the risk of derailment is caused in serious conditions. In the stacking and magnetic suspension system of superconducting tapes, as shown in fig. 5 and 6, the permanent magnet tracks are paved in a cascade way along the line direction by adopting magnet units with limited length, the magnetic field attenuation is brought at the joints among the magnet units, and when the horizontal stacking body of the superconducting tapes translates at high speed right above the horizontal stacking body, the effect is equivalent to loading a high-frequency alternating magnetic field on the surface of the horizontal stacking body of the superconducting tapesB ⊥Thereby bringing about a vortexiThe temperature rise further reduces the system performance and causes severe quench; in addition, system steering is unstable.
(2) According to the related patent and literature reports, when the C axes (22, 29, 27, 25) of the horizontal or vertical superconducting blocks or superconducting tapes are arranged perpendicular to the magnetization direction of the opposite magnets as shown in fig. 3 and 4, the system can obtain higher guiding performance. However, the above arrangement has the following disadvantages or drawbacks: in superconducting block material magnetic levitation system, on the one hand, when the superconductor sets up the use perpendicularly, need carry out machining, can reduce material performance, directly damage superconducting block when serious, when horizontal magnetization magnet 31 width exceedes 10mm, on the one hand, can reduce superconducting block material's availability factor, and on the other hand, the suspension bearing performance of system will greatly attenuate. In the superconducting tape stacking magnetic suspension system, the superconducting tape horizontal stacking body moves at high speed above the permanent magnet track to bring vortex and temperature rise, and in addition, the system almost loses the suspension performance;
(3) by setting different field cooling heights, the distribution of the suspension performance and the guidance performance of the system can be adjusted. The field cooling height of the system is improved, the system can obtain higher suspension performance, but the guiding performance of the system is weakened; the field cooling height of the system is reduced, the system can obtain higher guiding performance, but the suspension performance of the system is weakened, and the safe working height of the system is reduced;
(4) as shown in fig. 7 and 8, the two typical permanent magnet track external magnetic field flow diagrams are provided, in the prior art, a magnetic field above the permanent magnet track is mainly utilized, and a magnetic field below the permanent magnet track is not fully utilized, in related patents and documents, a high-temperature superconducting block double-sided magnetic levitation system shown in fig. 9 is proposed, wherein superconducting blocks are symmetrically arranged relative to the permanent magnet track, so that the external magnetic field of the permanent magnet track is fully utilized, and the levitation guidance performance of the system is improved. However, the above arrangement has the following disadvantages or drawbacks: on one hand, as with a single-sided superconducting bulk magnetic levitation system, the system has guide instability in the pressing process, so that transverse drift is caused, the suspension force of the system is further attenuated, and the risk of derailment is caused in serious cases; on the other hand, when the system is pressed down, the lower cold source 5 moves downwards to enable the superconducting blocks to be far away from the external magnetic field of the permanent magnet track, so that the performance of the lower suspension magnetic suspension system is reduced along with the pressing down; in addition, in order to obtain smaller working clearance, the surface of the heat sink 5 facing the permanent magnet track is usually thin-walled, because the upper surface of the heat sink 5 is subjected to upward suspension forceF han Easily causing structural damage thereof.
(5) Other techniques also include: the working temperature of the system is reduced by a nitrogen fixation cooling or refrigerating machine, and the critical current density and the capacity of capturing magnetic flux of the system are improved by adopting methods such as a high-performance superconducting material, increasing the using amount of the superconducting material and the like; the application external magnetic field strength of the permanent magnet track is improved by increasing the using amount and the residual magnetism of the permanent magnet material, optimizing the configuration of the permanent magnet track and the like. The method mainly enables the system to obtain higher suspension and guidance performance by improving material performance, increasing material consumption and optimizing the system, and simultaneously brings higher self weight and high cost.
Disclosure of Invention
The invention provides a high-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system and a levitation method, aiming at overcoming the defects that the levitation and the guidance performance are not simultaneously considered, the vertical arrangement of superconducting blocks is difficult to use and process, the efficiency is low, the horizontal stacking body of superconducting strips induces eddy currents and the like in the prior art, and aiming at simultaneously realizing higher levitation bearing performance and guidance performance of the system under the conditions of not increasing the self weight and the cost of the system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system comprises an upper cold source, an upper superconductor array, a permanent magnet track, a lower cold source and a lower superconductor array, wherein the upper superconductor array and the lower superconductor array are composed of a plurality of horizontal superconducting blocks and superconducting strip vertical stacking bodies, and the permanent magnet track is composed of horizontal magnetized magnets and magnetic gathering soft iron;
an upper superconductor array and an upper cold source are sequentially arranged above the permanent magnet track from bottom to top, the upper cold source cools the upper superconductor array, and the permanent magnet track provides an application external magnetic field; arranging a horizontal superconducting block right above the magnetic gathering soft iron, enabling a seed crystal point of the superconducting block to face the permanent magnet track, and arranging a superconducting tape vertical stacking body right above the horizontal magnetized magnet;
a lower superconductor array and a lower cold source are sequentially arranged below the permanent magnet track from top to bottom, the lower cold source cools the lower superconductor array, and the permanent magnet track provides an application external magnetic field; a superconducting tape vertical stacked body is arranged right below the magnetism-gathering soft iron, and a horizontal superconducting block is arranged right below the horizontal magnetized magnet, so that a seed crystal point of the superconducting block faces the permanent magnet track.
Furthermore, the horizontal superconducting block is a single structure or a combined structure of any two or more than two of ReBaCuO bulk materials or other superconducting material bulk materials, and Re is a rare earth element.
Further, the vertical stack of superconducting tapes is formed by stacking ReBaCuO tapes or tapes of other superconducting materials in a direction perpendicular to a horizontal plane, different stack thicknesses are set by controlling the number of stacked layers, and Re is a rare earth element.
Furthermore, the cold source is provided by a normal pressure liquid nitrogen or low pressure nitrogen fixation low temperature container and a refrigerator, and the superconductor is directly or indirectly cooled by the liquid nitrogen, the nitrogen fixation and the cold head.
Furthermore, the permanent magnet track is a single magnet combined structure or a combined structure of any two or more than two of a permanent magnet, an electromagnet, a superconducting wire (tape) coil magnet and a magnetic soft iron, and is a single-pole or multi-pole track.
Furthermore, when the permanent magnet track is assembled by adopting the permanent magnets and the soft magnetic iron, the soft magnetic iron sandwiched by the two horizontal magnetized magnets is used as a basic unit to be arrayed along the transverse direction, so that a single-pole or multi-pole track is formed.
A levitation method of a high-temperature superconducting bulk and strip material stack hybrid double-sided magnetic levitation system comprises the following steps:
1) setting an upper superconductor arrangement and an initial cooling position of the permanent magnet track, setting the upper superconductor arrangement right above the permanent magnet track, and setting a larger upper suspension air gap;
2) setting an initial cooling position of the lower superconductor arrangement and the permanent magnet track, setting the lower superconductor arrangement right opposite to the lower part of the permanent magnet track, and setting a smaller lower suspension air gap;
3) the upper superconductor arrangement and the lower superconductor arrangement are respectively cooled by the upper cold source and the lower cold source until the superconductors are completely in a superconducting state.
Compared with the prior art, the invention has the beneficial effects that: the defects that the suspension performance and the guiding performance of the system can not be simultaneously considered, the vertical arrangement of the superconducting blocks is difficult to use and process, the efficiency is low, the horizontal stacked body of the superconducting strips induces eddy currents and the like are overcome. Compared with a single type high-temperature superconducting magnetic suspension system, the system can fully utilize the external field of the permanent magnet track under the conditions of not increasing the self weight and the cost of the system, and simultaneously realize higher suspension capacity and higher guidance performance.
Drawings
The description of the drawings, which is intended as a further supplement to the description of the invention and not as a limitation of the embodiments of the invention, is:
FIG. 1 is a schematic view of a superconducting bulk material having a C-axis parallel to a magnetization direction;
fig. 2 is a schematic view in which the C-axis of the superconducting tape stack is arranged parallel to the magnetization direction;
FIG. 3 is a schematic view of a superconducting bulk material having a C-axis perpendicular to a magnetization direction;
fig. 4 is a schematic view showing a superconducting tape stack with the C-axis arranged perpendicular to the magnetization direction;
FIG. 5 is a schematic diagram of the longitudinal distribution of the external field of the permanent magnet track;
FIG. 6 is a schematic diagram showing an induced current distribution on the surface of a stack of superconducting tapes;
FIG. 7 is a schematic diagram of an external magnetic field streamline of a three-pole Halbach permanent magnet track;
FIG. 8 is a schematic view of an external magnetic field streamline of a three-pole soft iron poly-magnetic permanent magnet track;
FIG. 9 is a schematic structural diagram of a double-sided magnetic levitation system for high-temperature superconducting bulk;
FIG. 10 is a schematic diagram of a hybrid dual-sided magnetic levitation system for stacking high temperature superconducting blocks and tapes;
names of reference numbers in the drawings:
1-upper cold source, 2-upper superconductor arrangement, 21-horizontal superconductor, 22-horizontal superconductor C-axis, 23-superconductor seed point, 24-vertical superconductor stack, 25-vertical superconductor stack C-axis, 26-horizontal superconductor stack, 27-horizontal superconductor stack C-axis, 28-vertical superconductor, 29-vertical superconductor C-axis, 3-permanent magnet track, 31-horizontal magnetized magnet, 32-vertical magnetized magnet, 33-magnetic pole axis, 34-poly-magnetic soft iron, 4-lower superconductor arrangement, 41-horizontal superconductor, 42-horizontal superconductor C-axis, 43-superconductor seed point, 44-vertical superconductor stack, 45-vertical superconductor stack C-axis,5-a lower cold source, wherein the lower cold source is arranged in the lower cavity,Lu-an upper suspended air gap,Ld-a lower air-gap in suspension,F lev -a suspension force of the suspension,F han -a suspension force of the suspension,F gui -a guiding force which is directed in a direction perpendicular to the longitudinal axis,B ⊥-a vertical field.
Detailed Description
In the existing double-sided high-temperature superconducting block maglev system, the upper suspension system and the lower suspension system mainly provide suspension performance, in order to improve the guiding stability of the system, and solve the problem that the lower suspension system damages a cold source due to suspension force, the upper suspension system can adopt the arrangement mode shown in fig. 1 and fig. 2, and provides main suspension force for the system, the lower suspension system adopts the arrangement mode shown in fig. 3 and fig. 4, and provides main guiding force for the system, so that the vertical tension applied to the cold source of the lower suspension maglev system is greatly reduced, and further the lower suspension system is replaced by transverse guiding force, thereby not only improving the guiding stability of the double-sided maglev system, but also ensuring that the lower suspension system is safer and more reliable in working.
Compared with a high-temperature superconducting block material, the high-temperature superconducting strip material has excellent self-field critical current density and mechanical strength, has good low-temperature high-field performance, can obviously improve the suspension performance and the guiding performance of a system, and is uniform in stacking performance and flexible and simple in stacking thickness setting. The vertical stacking body of the superconducting strips is adopted to replace the vertically arranged superconducting blocks, so that the defects of difficult processing, easy damage, low efficiency and the like of the superconducting blocks can be overcome, and the suspension guide performance of the system is improved; the horizontal stacking body of the superconducting strips is replaced by the horizontally arranged superconducting blocks, so that the temperature rise caused by eddy current induction of the superconducting strips can be greatly reduced. By combining the advantages of the high-temperature superconducting bulk material and the high-temperature superconducting strip material stacked body, the defects of a single high-temperature superconducting magnetic suspension system can be overcome.
Based on the above thought, the invention adopts the following scheme:
example 1:
as shown in fig. 10, the structure of the stacked hybrid double-sided magnetic levitation system of high-temperature superconducting bulk and tape comprises an upper cold source 1, an upper superconductor array 2, a permanent magnet track 3, a lower cold source 5, and a lower superconductor array 4. The upper superconductor array 2 and the lower superconductor array 4 are composed of a plurality of horizontal superconducting blocks (21, 41) and superconducting tape vertical stacked bodies (24, 44), and the permanent magnet track 3 is composed of a horizontal magnetized magnet 31 and a magnetic gathering soft iron 34.
The upper superconductor arrangement 2 and the upper cold source 1 are sequentially arranged above the permanent magnet track 3 from bottom to top, the upper cold source 1 cools the upper superconductor arrangement 2, and the permanent magnet track 3 provides an application external magnetic field. The horizontal superconducting block 21 is arranged right above the magnetic soft iron 34, the superconducting block seed crystal point 23 faces the permanent magnet track 3, and the superconducting tape vertical stacked body 24 is arranged right above the horizontal magnetized magnet 31. Meanwhile, a higher cooling height is set, and main suspension force Flev is provided for the system.
The lower superconductor arrangement 4 and the lower cold source 5 are sequentially arranged below the permanent magnet track 3 from top to bottom, the lower cold source 5 cools the lower superconductor arrangement 4, and the permanent magnet track 3 provides an application external magnetic field. A superconducting tape vertical stack 44 is disposed directly below the magnetically soft iron 34, and a horizontal superconducting block 41 is disposed directly below the horizontal magnetized magnet 31 so that a superconducting block seed crystal point 43 faces the permanent magnet track 3. At the same time, a lower cooling height is provided, providing the main guiding force Fgui for the system.
Preferably, the horizontal superconducting blocks 21 and 41 are a single structure or a combined structure of any two or more of ReBaCuO (Re is a rare earth element) bulk or other superconducting material bulk.
Preferably, the vertical stacks 24 and 44 of superconducting tapes are formed by stacking ReBaCuO (Re is a rare earth element) tapes or tapes of other superconducting materials in a direction perpendicular to the horizontal plane, and different stacking thicknesses can be flexibly set by controlling the number of stacking layers.
Preferably, the cold source 1, 5 is provided by a normal pressure liquid nitrogen or low pressure nitrogen fixation low temperature container and a refrigerator, and the superconductor arrangement is directly or indirectly cooled by the liquid nitrogen, the nitrogen fixation and the cold head.
Preferably, the permanent magnet track 3 is a single-pole or multi-pole track formed by a combination structure of a single magnet or any two or more of a combination structure of a permanent magnet, an electromagnet, a superconducting wire (tape) coil magnet and a poly soft iron.
Preferably, when the permanent magnet track 3 is assembled by using permanent magnets and soft magnet gathering iron, the two horizontal magnetized magnets 31 sandwich the soft magnet gathering iron 34 as basic units in the transverse direction for array combination to form a single-pole or multi-pole permanent magnet track.
Example 2:
fig. 10 is a schematic structural diagram of a stacked hybrid double-sided maglev system for high-temperature bulk superconductors and tapes, wherein the levitation method comprises the following steps:
(1) setting initial cooling positions of the upper superconductor array 2 and the permanent magnet track 3, setting the upper superconductor array 2 right above the permanent magnet track 3, and setting a larger upper suspension air gap Lu (larger than 30 mm);
(2) setting initial cooling positions of a lower superconductor array 4 and a permanent magnet track 3, setting the lower superconductor array 4 just under the permanent magnet track 3, and setting a smaller lower suspension air gap Ld (less than 5 mm);
(3) the upper superconductor array 2 and the lower superconductor array 4 are respectively cooled by the upper cold source 1 and the lower cold source 5 until all the horizontal superconducting blocks 21 and 41 and the vertical stacking bodies 24 and 44 of the superconducting tapes enter a superconducting state.
It can be seen that, compared with the prior art, the beneficial effects of the invention include: the defects that the suspension performance and the guiding performance of the system can not be simultaneously considered, the vertical arrangement of the superconducting blocks is difficult to use and process, the efficiency is low, the horizontal stacked body of the superconducting strips induces eddy currents and the like are overcome. Compared with a single type high-temperature superconducting magnetic suspension system, the system can fully utilize the external field of the permanent magnet track without increasing the self weight and the cost of the system, and simultaneously realize higher suspension bearing performance and higher guiding performance.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a high temperature superconductor block and strip pile up mixed two-sided magnetic levitation system which characterized in that: the superconducting linear motor comprises an upper cold source, an upper superconductor array, a permanent magnet track, a lower cold source and a lower superconductor array, wherein the upper superconductor array and the lower superconductor array are composed of a plurality of horizontal superconducting blocks and superconducting tape vertical stacked bodies, and the permanent magnet track is composed of a horizontal magnetized magnet and magnetic gathering soft iron;
an upper superconductor array and an upper cold source are sequentially arranged above the permanent magnet track from bottom to top, the upper cold source cools the upper superconductor array, and the permanent magnet track provides an application external magnetic field; arranging a horizontal superconducting block right above the magnetic gathering soft iron, enabling a seed crystal point of the superconducting block to face the permanent magnet track, and arranging a superconducting tape vertical stacking body right above the horizontal magnetized magnet;
a lower superconductor array and a lower cold source are sequentially arranged below the permanent magnet track from top to bottom, the lower cold source cools the lower superconductor array, and the permanent magnet track provides an application external magnetic field; a superconducting tape vertical stacked body is arranged right below the magnetism-gathering soft iron, and a horizontal superconducting block is arranged right below the horizontal magnetized magnet, so that a seed crystal point of the superconducting block faces the permanent magnet track.
2. The system of claim 1, wherein the system comprises: the horizontal superconducting block is a single structure or a combined structure of any two or more than two of ReBaCuO block materials or other superconducting material block materials, and Re is a rare earth element.
3. The system of claim 1, wherein the system comprises: the vertical stacking body of the superconducting tapes is formed by stacking ReBaCuO tapes or other superconducting materials in a direction vertical to a horizontal plane, different stacking thicknesses are set by controlling the number of stacking layers, and Re is a rare earth element.
4. The system of claim 1, wherein the system comprises: the cold source is provided by a normal pressure liquid nitrogen or low pressure nitrogen fixation low temperature container and a refrigerator, and the superconductor arrangement is directly or indirectly cooled by the liquid nitrogen, the nitrogen fixation and the cold head.
5. The system of claim 1, wherein the system comprises: the permanent magnet track is a single magnet combined structure or a combined structure of any two or more than two of permanent magnets, electromagnets, superconducting wires or strip coil magnets and magnetic soft iron, and is a single-pole or multi-pole track.
6. The system of claim 5, wherein the system comprises: when the permanent magnet track is assembled by adopting the permanent magnets and the magnetic soft iron, the magnetic soft iron is wrapped and clamped by the two horizontal magnetized magnets as a basic unit and is arrayed along the transverse direction to form a single-pole or multi-pole track.
7. The levitation method of the high-temperature superconducting bulk and tape stacking hybrid double-sided magnetic levitation system as claimed in claim 1, wherein: the suspension method comprises the following steps:
1) setting an upper superconductor arrangement and an initial cooling position of the permanent magnet track, setting the upper superconductor arrangement right above the permanent magnet track, and setting a larger upper suspension air gap;
2) setting an initial cooling position of the lower superconductor arrangement and the permanent magnet track, setting the lower superconductor arrangement right opposite to the lower part of the permanent magnet track, and setting a smaller lower suspension air gap;
3) the upper superconductor arrangement and the lower superconductor arrangement are respectively cooled by the upper cold source and the lower cold source until the superconductors are completely in a superconducting state.
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| CN206644675U (en) * | 2017-02-22 | 2017-11-17 | 西南交通大学 | A kind of two-sided suspension transport system of high-temperature superconductor permanent magnetism |
| CN212124858U (en) * | 2020-05-26 | 2020-12-11 | 石家庄铁道大学 | Sandwich structure high-temperature superconducting magnetic suspension train |
| CN215793196U (en) * | 2021-06-29 | 2022-02-11 | 福建师范大学 | High-temperature superconducting block and strip stacking mixed double-sided magnetic levitation system |
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