CN205845627U - Superconduction Dewar tank - Google Patents
Superconduction Dewar tank Download PDFInfo
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- CN205845627U CN205845627U CN201620658716.5U CN201620658716U CN205845627U CN 205845627 U CN205845627 U CN 205845627U CN 201620658716 U CN201620658716 U CN 201620658716U CN 205845627 U CN205845627 U CN 205845627U
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- inner tube
- vacuum chamber
- cover plate
- superconduction
- annulus
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Abstract
This utility model relates to a kind of Dewar tank building superconductive device, provide a kind of superconduction Dewar tank, including the first inner tube, second inner tube, 3rd inner tube, outer tube, annulus outer cover plate and annulus inner cover plate, second inner tube is enclosed within outside the first inner tube, it it is the first vacuum chamber between second inner tube and the first inner tube, 3rd inner tube is enclosed within outside the second inner tube, it is cryogenic media chamber between 3rd inner tube and the second inner tube, outer tube sleeve is outside the 3rd inner tube, it is the second vacuum chamber between outer tube and the 3rd inner tube, circular ring cover outside plate covers in the second inner tube, the two ends of the 3rd inner and outer tubes, the endoporus with annulus outer cover plate at the two ends of the first inner tube is connected, annulus inner cover plate covers the two ends in cryogenic media chamber, the 3rd vacuum chamber is formed with annulus outer cover plate, the 3rd inner tube and the second inner tube at 3rd vacuum chamber are provided with access opening.This utility model is all round the vacuum environment of connection, is greatly reduced heat transmission, it is to avoid the ring current impact on superconducting device, it is ensured that superconductor runs Effec-tive Function.
Description
Technical field
This utility model relates to a kind of Dewar tank building superconductive device.
Background technology
BCS theory regards a kind of macroscopic quantum effect as superconducting phenomenon.It proposes, the electricity that in metal, spin is contrary with momentum
Son can match and be formed so-called " Cooper pair ", and Cooper pair can loss-free be moved in the middle of lattice, forms supercurrent.?
While BCS theory proposes, what Nicolai Bo Geliubofu was the most independent proposes the interpretation of quantum mechanics of superconductivity, and he makes
Bo Geliubofu conversion conventional for people so far.
The Coulomb force that interelectric direct interaction excludes each other.Direct acting iff there is Coulomb force
Words, interelectric this interaction, when meeting certain condition, can attract each other, and the most this sucking action causes
The generation of " Cooper pair ".Generally, its mechanism is as follows: can attract the positive electricity on neighbouring lattice point when electronics moves in lattice
Lotus, causes the local distortion of lattice point, forms the high Pregionp of a local.The high Pregionp of this local can attract spin
Contrary electronics, and original electronics can combine pairing with certain combination.At quite low temperatures, this combination can
Higher than lattice atoms vibration energy, so, electronics to will not and lattice generation energy exchange, the most just there is no resistance, formed
So-called " superconduction ".
Although BCS is confirmed by experiment, but still some problems are had to need to solve, such as: a superconduction annulus is placed on
In magnetic field and be cooled to below critical temperature, remove suddenly magnetic field, then supercurrent of generation being inducted in superconducting ring.Experiment is sent out
Existing, this electric current can continue also to find no significant change in several years.
Superconducting transformer is the superconductor concrete application in technical field of electric power, the basic structure of superconducting transformer and work
Make principle identical with conventional immersion oil transformator.They all by once, the part such as secondary coil and iron core forms.And superconduction transformation
The copper cash that device uses superconducting coil to instead of in conventional transformer makes once, secondary coil, and superconducting coil is immersed in liquid
In state helium or liquid nitrogen.Compared with conventional immersion oil transformator, superconducting transformer has small-sized, light weight, high efficiency, without burning danger
The advantages such as danger, current limitation effect is good.At present, conventional superconducting transformer, it is the winding that bismuth oxide superconducting wire rod is rolled, puts into
In the heat insulation cylinder that glass fiber reinforced fiberglass is made, and inject liquid nitrogen, to replace transformer oil, iron core is placed on room
Temperature is completely cut off with liquid nitrogen in space.
As can be seen here, for the structure of heat insulation tubular and the performance of liquid nitrogen storage, it is to ensure that cryogenic media such as liquid nitrogen does not steams
Send out such that it is able to guarantee that superconductor is in a equipment the most crucial of superconducting state, also referred to as Dewar tank.
At present, described Dewar tank is the pressure vessel using the rustless steel of super vacuum insulation to prepare mostly, is used for storing up
Deposit, transport and use liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide.
Dewar tank has two main advantages: first is, compared with compressed gas cylinder, it can be in relatively low pressure
Substantial amounts of gas is accommodated under power.Second is that it provides maneuverable cryogenic fluid source.Owing to Dewar tank is firm reliably, protect
Time of holding is long, fully meet under normal circumstances use gas requirement.
But, in superconductor applications, current Dewar tank there is also many defects, poor thermal insulation property, ties without vacuum insulation
Structure, it is impossible to overcoming the impact on superconducting device of the ring current because producing magnetic field row one-tenth when superconductor runs, cryogenic media cannot
It is automatically replenished, therefore, it is impossible to guarantee that superconductor runs high efficiency, the reliability of longtime running, is not met by superconductor neck
The needs of territory application.
Utility model content
The purpose of this utility model is to provide a kind of superconduction Dewar tank, to overcome defect present on prior art, meets
The needs of association area application.
Superconduction Dewar tank described in the utility model, including the first inner tube, the second inner tube, the 3rd inner tube, outer tube, annulus outside
Cover plate and annulus inner cover plate；
The second described inner tube is enclosed within outside the first described inner tube, and the cavity between the second inner tube and the first inner tube is first
Vacuum chamber；
The 3rd described inner tube is enclosed within outside the second inner tube, and in the 3rd, the cavity between pipe box and the second inner tube is cryogenic media
Chamber；
Described outer tube sleeve is outside the 3rd inner tube, and the cavity between outer tube and the 3rd inner tube is the second vacuum chamber；
Described annulus outer cover plate covers at the second described inner tube, the two ends of the 3rd inner and outer tubes, and is tightly connected, institute
The outer wall at the two ends of the first inner tube stated is connected with the endoporus of described annulus outer cover plate；
Described annulus inner cover plate covers the two ends in described cryogenic media chamber, is positioned at the lower section of annulus outer cover plate, with institute
The 3rd vacuum chamber is formed between the annulus outer cover plate stated；
Described the 3rd inner tube at the 3rd vacuum chamber and the second inner tube are provided with access opening；
The beneficial effects of the utility model are: this utility model, for disposing the tank body of superconductor, is all round vacuum
Environment, additional protective shield of radiation designs, and insulating material does ladle body structure, can not only be greatly reduced the transmission of heat, simultaneously energy
Enough avoiding the impact on superconducting device of the ring current because producing magnetic field row one-tenth when superconductor runs, cryogenic media can be mended automatically
Fill, it can be ensured that superconductor runs high efficiency, the reliability of longtime running, the needs of superconductor field application can be met.
Accompanying drawing explanation
Fig. 1 is superconduction Dewar tank cross-sectional view.
Fig. 2 is superconduction Dewar tank cross section structure schematic diagram.
Fig. 3 is radiation protective layer structural representation.
Detailed description of the invention
Seeing Fig. 1～Fig. 3, superconduction Dewar tank described in the utility model, including first inner tube the 1, second inner tube the 2, the 3rd
Inner tube 3, outer tube 4, annulus outer cover plate 9 and annulus inner cover plate 19；
The second described inner tube 2 is enclosed within outside the first described inner tube 1, and the cavity between the second inner tube 2 and the first inner tube 1 is
First vacuum chamber 6；
The 3rd described inner tube 3 is enclosed within outside the second inner tube 2, and it is low temperature that the 3rd inner tube 3 overlaps the cavity between the second inner tube 2
Dielectric cavity 7, is used for disposing cryogenic media and superconductor；
Described outer tube 4 is enclosed within outside the 3rd inner tube 3, and the cavity between outer tube 4 and the 3rd inner tube 3 is the second vacuum chamber 8；
Described annulus outer cover plate 9 covers at the second described inner tube the 2, the 3rd inner tube 3 and two ends of outer tube 4, and the company of sealing
Connecing, the outer wall at the two ends of the first described inner tube 1 is connected with the endoporus 901 of described annulus outer cover plate 9；
Described annulus inner cover plate 19 covers the two ends in described cryogenic media chamber 7, is positioned at the lower section of annulus outer cover plate 9,
And form the 3rd vacuum chamber 20 between described annulus outer cover plate 9；
The 3rd inner tube 3 and the second inner tube 2 at the 3rd described vacuum chamber 20 are provided with access opening 21 so that the 3rd vacuum chamber
20, the second vacuum chamber and the first vacuum chamber are interconnected；
Preferably, on described outer cover plate 9, being provided with liquid in-out mouth 14, described liquid in-out mouth is by through inner cover plate
The pipeline of 19, is connected with cryogenic media chamber 7, and described liquid in-out mouth 14 is provided with liquid in-out valve；
Preferably, on described outer cover plate 9, it is provided with vacuum port 15, described vacuum port 15 and the first vacuum chamber, second
Vacuum chamber or the 3rd vacuum chamber are connected, and described vacuum port 15 is provided with vacuum valve；
Preferably, the outer wall in the 3rd described inner tube is also fitted with radiation protective layer 11, sees Fig. 3, described radioprotective
Layer 11 is the metal forming being provided with vertical incision 1101, such as aluminium foil, gold-plated reflective membrane etc., is used for preventing heat conduct radiation；
Preferably, also include that liquid level sensor 21, described liquid level sensor are arranged in cryogenic media chamber 7；
Preferably, also include pressure transducer, described pressure transducer be arranged on the first vacuum chamber, the second vacuum chamber or
In 3rd vacuum chamber；
First described inner tube the 1, second inner tube the 2, the 3rd inner tube 3 and outer tube 4 use engineering thermal insulation plastics, such as asphalt mixtures modified by epoxy resin
Fat, polyurethane, carbamide resin etc..
Preferably, also including sensor component 30 and superconductor component 40, described sensor component is fixed by connector
In the first described inner tube 1, the material of described sensor component is metal material, such as iron core, stalloy etc.；Described superconduction material
Material component 40 is arranged in described cryogenic media chamber 7, and the shape of described superconductor component does not limit, such as coil, bar
Band, sheet material etc.；Described superconductor is conventional technique.
Preferably, in the first described vacuum chamber, the second vacuum chamber or the 3rd vacuum chamber, it is additionally provided with gas adsorption material
22。
Claims (9)
1. superconduction Dewar tank, it is characterised in that include the first inner tube (1), the second inner tube (2), the 3rd inner tube (3), outer tube (4),
Annulus outer cover plate (9) and annulus inner cover plate (19)；
The second described inner tube is enclosed within outside the first described inner tube, and the cavity between the second inner tube and the first inner tube is the first vacuum
Chamber (6)；
The 3rd described inner tube is enclosed within outside the second inner tube, and the cavity between the 3rd inner tube and the second inner tube is cryogenic media chamber (7)；
Described outer tube sleeve is outside the 3rd inner tube, and the cavity between outer tube and the 3rd inner tube is the second vacuum chamber (8)；
Described circular ring cover outside plate covers at the second described inner tube, the two ends of the 3rd inner and outer tubes, and is tightly connected, described
The outer wall at the two ends of the first inner tube is connected with the endoporus (901) of described annulus outer cover plate；
Described annulus inner cover plate covers the two ends in described cryogenic media chamber, is positioned at the lower section of annulus outer cover plate, with described
The 3rd vacuum chamber (20) is formed between annulus outer cover plate；
Described the 3rd inner tube at the 3rd vacuum chamber and the second inner tube are provided with access opening (21).
Superconduction Dewar tank the most according to claim 1, it is characterised in that on described outer cover plate, be provided with liquid in-out mouth
(14), described liquid in-out mouth, by the pipeline through inner cover plate, is connected with cryogenic media chamber, and described liquid in-out mouth is provided with
Liquid in-out valve.
Superconduction Dewar tank the most according to claim 1, it is characterised in that on described outer cover plate, be provided with vacuum port
(15), described vacuum port and the first vacuum chamber, the second vacuum chamber or the 3rd vacuum chamber are connected, and described vacuum port is provided with very
Empty valve.
Superconduction Dewar tank the most according to claim 1, it is characterised in that the outer wall in the 3rd described inner tube is also fitted with
Radiation protective layer (11).
Superconduction Dewar tank the most according to claim 4, it is characterised in that described radiation protective layer is to be provided with vertical incision
Metal forming.
Superconduction Dewar tank the most according to claim 1, it is characterised in that also include liquid level sensor and pressure transducer,
Described liquid level sensor is arranged in cryogenic media chamber, and described pressure transducer is arranged on the first vacuum chamber, the second vacuum
In chamber or the 3rd vacuum chamber.
Superconduction Dewar tank the most according to claim 1, it is characterised in that at the first described vacuum chamber, the second vacuum chamber
Or the 3rd in vacuum chamber, it is additionally provided with gas adsorption material.
8. according to the superconduction Dewar tank described in any one of claim 2～7, it is characterised in that described the first inner tube, in second
Pipe, the 3rd inner and outer tubes use engineering thermal insulation plastics.
Superconduction Dewar tank the most according to claim 8, it is characterised in that also include sensor component and superconductor component,
Described sensor component is fixed on the first described inner tube by connector, and described superconductor component is arranged on described low
In temperature dielectric cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620658716.5U CN205845627U (en) | 2016-06-28 | 2016-06-28 | Superconduction Dewar tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620658716.5U CN205845627U (en) | 2016-06-28 | 2016-06-28 | Superconduction Dewar tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205845627U true CN205845627U (en) | 2016-12-28 |
Family
ID=57621622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620658716.5U Active CN205845627U (en) | 2016-06-28 | 2016-06-28 | Superconduction Dewar tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205845627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957684A (en) * | 2016-06-28 | 2016-09-21 | 上海烙嘉科技有限公司 | Superconducting dewar tank |
| CN110690023A (en) * | 2019-10-31 | 2020-01-14 | 株洲联诚集团控股股份有限公司 | Dewar for superconducting power device |
-
2016
- 2016-06-28 CN CN201620658716.5U patent/CN205845627U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957684A (en) * | 2016-06-28 | 2016-09-21 | 上海烙嘉科技有限公司 | Superconducting dewar tank |
| CN110690023A (en) * | 2019-10-31 | 2020-01-14 | 株洲联诚集团控股股份有限公司 | Dewar for superconducting power device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |