CN109003774A - A kind of floating Dewar of high-temperature superconductor magnetic - Google Patents
A kind of floating Dewar of high-temperature superconductor magnetic Download PDFInfo
- Publication number
- CN109003774A CN109003774A CN201810672908.5A CN201810672908A CN109003774A CN 109003774 A CN109003774 A CN 109003774A CN 201810672908 A CN201810672908 A CN 201810672908A CN 109003774 A CN109003774 A CN 109003774A
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- China
- Prior art keywords
- dewar
- cover board
- block material
- enclosed type
- totally enclosed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The present invention provides a kind of high-temperature superconductor magnetic to float Dewar.The Dewar includes: cover board, shell, superconduction block material, interior case and liquid injection pipe；Wherein, shell is semi-enclosed container；The top of shell is connect with cover board, forms totally enclosed type cavity；Vacuum interface is provided on shell；Interior case is arranged in the totally enclosed type cavity；Interior case is semi-enclosed container, and the top of interior case is connect with cover board, forms totally enclosed type container；Superconduction block material is placed in the totally enclosed type cavity, and the bottom of totally enclosed type container is fixed at the top of superconduction block material；Liquid injection pipe is fixed on the cover board, and the upper end of liquid injection pipe is connected to atmosphere, and the lower end of liquid injection pipe is connected to the inside of the totally enclosed type container.Using the present invention it can be effectively prevented from the oxidation or erosion of gas or liquid to superconduction block material, extend the service life of superconduction block material while guaranteeing that superconduction block material works normally, while the integrated suspension height that high-temperature superconductor magnetic floats Dewar also can be improved.
Description
Technical field
This application involves superconducting magnetic levita technical fields more particularly to a kind of high-temperature superconductor magnetic to float Dewar.
Background technique
It is high compared with electromagnetic suspension (EMS) and electrodynamics suspension (EDS) technology based on electromagnetic attraction and electromagnetic repulsion force
Temperature superconductive magnetic levitation technology realizes passive self-stabilization by the flux pinning effect between high-temperature superconductor bulk and external magnetic field
It suspends.
Superconductor can generate unique flux pinning ability when being in superconduction mixed state, to realize self-stabilization, without input
Energy and the suspended state in continuous-stable section.High temperature superconductor magnetic levitation vehicle is exactly the allusion quotation of this superconduction self-stabilization suspension characteristic
Type application, i.e., install high-temperature superconducting block in the Dewar of bottom of frame two sides, and the high-temperature superconducting block of vehicle frame two sides is located at two
The surface of root tracks of permanent magnetism.When high-temperature superconducting block is in superconduction critical temperature or less, bulk and tracks of permanent magnetism phase interaction
With generating unique flux pinning phenomenon, realize the stable suspersion of vehicle frame, and realize and suspended without rubbing under the driving of linear motor
Wipe operation.
In order to cool down superconduction block material, it is in working condition, is in the prior art usually to be immersed in superconduction block material
In liquid nitrogen, its temperature is made to be lowered into superconducting state.However, since superconduction block material is soaked in liquid nitrogen always, liquid nitrogen
Impregnated superconduction block material will be damaged to a certain extent, reduces the service life of the superconduction block material.
Summary of the invention
In view of this, the present invention provides a kind of high-temperature superconductor magnetic to float Dewar, so as to guarantee that superconduction block material is normal
While work, it is effectively prevented from the oxidation or erosion of gas or liquid to superconduction block material, extends the service life of superconduction block material,
The integrated suspension height that high-temperature superconductor magnetic floats Dewar also can be improved simultaneously.
Technical solution of the present invention is specifically achieved in that
A kind of floating Dewar of high-temperature superconductor magnetic, which includes: cover board, shell, superconduction block material, interior case and liquid injection pipe；
Wherein, the shell is semi-enclosed container；The top of the shell is connect with cover board, and it is empty to form totally enclosed type
Chamber；Vacuum interface is provided on the shell；
The interior case is arranged in the totally enclosed type cavity；The interior case is semi-enclosed container, the top of the interior case
Portion is connect with cover board, forms totally enclosed type container；
The superconduction block material is placed in the totally enclosed type cavity, and is fixed at the top of the superconduction block material described complete
The bottom of closed container；
The liquid injection pipe is fixed on the cover board, and the upper end of the liquid injection pipe is connected to atmosphere, the lower end of the liquid injection pipe
It is connected to the inside of the totally enclosed type container.
Wherein, on the Dewar further include: fixing seat；
The fixing seat is arranged on the cover board, for the liquid injection pipe to be fixed on the cover board.
Wherein, on the Dewar further include: mounting base；
The top of the cover board is arranged in the mounting base.
Wherein, one or more threaded mounting holes are additionally provided in the mounting base
Wherein, the material of the cover board is high-intensitive high molecular synthetic material.
Wherein, the material of the shell is stainless steel.
Wherein, the material of the interior case is thermally conductive metal material.
Wherein, the superconduction block material is fixed on the bottom of the totally enclosed type container by way of bonding.
Wherein, the material of the liquid injection pipe, fixing seat and mounting base is metal material；
The liquid injection pipe, fixing seat and mounting base are fixed on the cover board by way of bonding.
As above as it can be seen that being floated in Dewar in high-temperature superconductor magnetic of the invention, since superconduction block material is not that setting can be perfused
In the interior case of refrigerant, but it is arranged in the vacuum environment except the interior case, so that the superconduction block material is in vacuum environment
And do not contacted directly with refrigerant, so as to guarantee superconduction block material work normally while, be effectively prevented from gas or
Oxidation or erosion of the liquid to superconduction block material, extend the service life of superconduction block material.
In addition, the distance between bottom and the bottom of shell can be set since superconduction block material is set to except interior case
Very little is obtained, it is super to improve high temperature so as to reserve most spaces by the hoverheight size d that is designed as in structure
Magnetic conduction floats the integrated suspension height of Dewar, maximizes hoverheight size d.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the floating Dewar of high-temperature superconductor magnetic in the embodiment of the present invention.
Fig. 2 is the position view of high-temperature superconductor the magnetic floating Dewar and permanent magnet in the embodiment of the present invention.
Specific embodiment
For technical solution of the present invention and advantage is more clearly understood, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Fig. 1 is the structural schematic diagram of the floating Dewar of high-temperature superconductor magnetic in the embodiment of the present invention.As shown in Figure 1, the present invention is real
Applying the high-temperature superconductor magnetic in example and floating Dewar includes: cover board 11, shell 12, superconduction block material 13, interior case 14 and liquid injection pipe 15；
Wherein, the shell 12 is semi-enclosed container；The top of the shell 12 is connect with cover board 11, is formed totally-enclosed
Formula cavity 19；Vacuum interface 21 is provided on the shell 12；
The interior case 14 is arranged in the totally enclosed type cavity 19；The interior case 14 is semi-enclosed container, described interior
The top of case 14 is connect with cover board 11, forms totally enclosed type container 18；
The superconduction block material 13 is placed in the totally enclosed type cavity 19, and the top of the superconduction block material 13 is fixed on
The bottom of the totally enclosed type container 18；
The liquid injection pipe 15 is fixed on the cover board 11, and the upper end of the liquid injection pipe 15 is connected to atmosphere, the liquid injection pipe
15 lower end is connected to the inside of the totally enclosed type container 18.
It is floated in Dewar in above-mentioned high-temperature superconductor magnetic, vacuum interface 21 is provided on shell, therefore the vacuum can be passed through
Totally enclosed type cavity 19 is evacuated by interface 21, then blocks vacuum interface 21 using capping 22, so that totally enclosed type is empty
Chamber 19 keeps vacuum state.Totally enclosed type container 18 be it is hollow, can be used for accommodating refrigerant (for example, liquid nitrogen etc.), therefore
Refrigerant (for example, liquid nitrogen etc.) can be perfused into totally enclosed type container 18 by liquid injection pipe 15.Since refrigerant is to be poured in entirely
In closed container 18, but superconduction block material 13 is not to be arranged in totally enclosed type container 18, but be arranged in totally enclosed type sky
In vacuum environment in chamber 19, therefore the superconduction block material 13 is isolated from the outside world, and does not also contact directly with refrigerant, therefore can have
Effect gas or liquid is avoided to extend the service life of superconduction block material to the oxidation or erosion of superconduction block material.In addition, due to superconduction
The top of bulk 13 is directly abutted with the bottom of totally enclosed type container 18, therefore can be by conduction of heat, and use is totally-enclosed
Refrigerant in formula container 18 cools down the superconduction block material 13, keeps the superconduction block material 13 in running order.
In addition, as shown in Fig. 2, being placed in permanent magnet when the in running order high-temperature superconductor magnetic of superconduction block material 13 is floated Dewar
On 10, which will be suspended in the top of permanent magnet 10, and hoverheight is having a size of d.
Component due to playing suspension effect in Dewar structure is superconduction block material 13, and the suspension of specific superconduction block material 13 is high
Degree is substantially definite value, therefore in order to increase the hoverheight size d of entire Dewar as far as possible, need to reduce base thickness ruler to the maximum extent
Very little t (as shown in Figure 1).And in the inventive solutions, since superconduction block material 13 is to be set to except interior case 14, bottom
Very little can be set to obtain in the distance between bottom of shell, therefore can be designed as the value of size t in structure the smallest
Size.For example, the bottom plate 23 of shell 12 can be thinned to no more than 1mm as far as possible, and make superconduction block material 13 and bottom plate 23 it
Between distance reduce to 1mm is no more than, size t at this time will be no more than 2mm, so as to reserve most skies for size d
Between, to improve the integrated suspension height that high-temperature superconductor magnetic floats Dewar, maximize size d.
In addition, preferably, in a specific embodiment of the present invention, on the Dewar further include: fixing seat 16；
The fixing seat 16 is arranged on the cover board 11, for the liquid injection pipe 15 to be fixed on the cover board 11.
In addition, preferably, in a specific embodiment of the present invention, on the Dewar further include: mounting base 17；
The top of the cover board 11 is arranged in the mounting base 17.
It therefore, can be using the upper surface of above-mentioned mounting base 17 as mounting platform 71, so as to flat by above-mentioned installation
The Dewar is connect by platform 71 with other structures.
In addition, preferably, in a specific embodiment of the present invention, also settable one or more spiral shells in the mounting base 17
Line mounting hole 72, so as to more easily connect the Dewar with other structures.
In addition, preferably, in a specific embodiment of the present invention, the material of the cover board can close for high-intensitive macromolecule
At material (for example, carbon fiber or epoxide resin material etc.), can using panel machine by the cover board be machined to required shape and
Size.
In addition, preferably, in a specific embodiment of the present invention, the material of the shell can be stainless steel, Ke Yitong
It crosses the modes such as welding and forms semi-enclosed container.
In addition, preferably, in a specific embodiment of the present invention, the shell can be connected with cover board by the modes such as Nian Jie
It is connected into one, forms totally enclosed type cavity.
In addition, preferably, in a specific embodiment of the present invention, the material of the interior case can be thermally conductive metal material
Material, for example, the materials such as stainless steel, copper or aluminium alloy.The interior case can also form semi-enclosed container by modes such as welding.
In addition, preferably, in a specific embodiment of the present invention, the interior case can be connected with cover board by the modes such as Nian Jie
It is connected into one, forms totally enclosed type container.
In addition, preferably, in a specific embodiment of the present invention, the superconduction block material can be fixed by modes such as bondings
In the bottom of the totally enclosed type container, link into an integrated entity with the totally enclosed type container.
In addition, preferably, in a specific embodiment of the present invention, the material of the liquid injection pipe, fixing seat and mounting base is equal
It can be metal material.The liquid injection pipe, fixing seat and mounting base can be fixed on the cover board by modes such as bondings.
In conclusion being floated in Dewar in high-temperature superconductor magnetic of the invention, since superconduction block material is not that setting can be perfused
In the interior case of refrigerant, but it is arranged in the vacuum environment except the interior case, so that the superconduction block material is in vacuum environment
And do not contacted directly with refrigerant, so as to guarantee superconduction block material work normally while, be effectively prevented from gas or
Oxidation or erosion of the liquid to superconduction block material, extend the service life of superconduction block material.
In addition, the distance between bottom and the bottom of shell can be set since superconduction block material is set to except interior case
Very little is obtained, it is super to improve high temperature so as to reserve most spaces by the hoverheight size d that is designed as in structure
Magnetic conduction floats the integrated suspension height of Dewar, maximizes hoverheight size d.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (9)
1. a kind of high-temperature superconductor magnetic floats Dewar, which is characterized in that the Dewar includes: cover board, shell, superconduction block material, interior case and note
Liquid pipe；
Wherein, the shell is semi-enclosed container；The top of the shell is connect with cover board, forms totally enclosed type cavity；Institute
It states and is provided with vacuum interface on shell；
The interior case is arranged in the totally enclosed type cavity；The interior case be semi-enclosed container, the top of the interior case with
Cover board connection, forms totally enclosed type container；
The superconduction block material is placed in the totally enclosed type cavity, and is fixed at the top of the superconduction block material described totally-enclosed
The bottom of formula container；
The liquid injection pipe is fixed on the cover board, and the upper end of the liquid injection pipe is connected to atmosphere, the lower end of the liquid injection pipe and institute
State the inside connection of totally enclosed type container.
2. Dewar according to claim 1, which is characterized in that on the Dewar further include: fixing seat；
The fixing seat is arranged on the cover board, for the liquid injection pipe to be fixed on the cover board.
3. Dewar according to claim 1, which is characterized in that on the Dewar further include: mounting base；
The top of the cover board is arranged in the mounting base.
4. Dewar according to claim 3, it is characterised in that:
One or more threaded mounting holes are additionally provided in the mounting base.
5. Dewar according to claim 1, it is characterised in that:
The material of the cover board is high-intensitive high molecular synthetic material.
6. Dewar according to claim 1, it is characterised in that:
The material of the shell is stainless steel.
7. Dewar according to claim 1, it is characterised in that:
The material of the interior case is thermally conductive metal material.
8. Dewar according to claim 1, it is characterised in that:
The superconduction block material is fixed on the bottom of the totally enclosed type container by way of bonding.
9. Dewar according to claim 1, it is characterised in that:
The material of the liquid injection pipe, fixing seat and mounting base is metal material；
The liquid injection pipe, fixing seat and mounting base are fixed on the cover board by way of bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672908.5A CN109003774A (en) | 2018-06-26 | 2018-06-26 | A kind of floating Dewar of high-temperature superconductor magnetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672908.5A CN109003774A (en) | 2018-06-26 | 2018-06-26 | A kind of floating Dewar of high-temperature superconductor magnetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109003774A true CN109003774A (en) | 2018-12-14 |
Family
ID=64601945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810672908.5A Pending CN109003774A (en) | 2018-06-26 | 2018-06-26 | A kind of floating Dewar of high-temperature superconductor magnetic |
Country Status (1)
| Country | Link |
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| CN (1) | CN109003774A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868042A (en) * | 2019-11-29 | 2020-03-06 | 北京航空航天大学 | Scheme of high-rotating-speed high-power-density airborne full-superconducting generator |
| CN112046296A (en) * | 2020-08-14 | 2020-12-08 | 西南交通大学 | Superconducting magnetic levitation train |
| CN112248822A (en) * | 2020-10-26 | 2021-01-22 | 北京机械设备研究所 | High-temperature superconducting load-bearing suspension vehicle device for electromagnetic propulsion |
| CN114823040A (en) * | 2022-06-23 | 2022-07-29 | 西南交通大学 | High-temperature superconducting magnetic suspension Dewar capable of increasing damping and suspension force and width calculation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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