CN206890073U - A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat - Google Patents
A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat Download PDFInfo
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- CN206890073U CN206890073U CN201720649702.1U CN201720649702U CN206890073U CN 206890073 U CN206890073 U CN 206890073U CN 201720649702 U CN201720649702 U CN 201720649702U CN 206890073 U CN206890073 U CN 206890073U
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- outer courage
- dewar
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Abstract
The utility model discloses a kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat.It is made up of suspension bearing structure, inner bag, liner at the bottom reinforcement structure, outer courage, outer courage bottom reinforcement structure, vacuum insulation interlayer, cooling component.By being respectively arranged reinforcement structure in Dewar inner-outer tube bottom, reduce inner-outer tube deformation of bottom, so as to be not added with the vacuum interlayer between Dewar inner-outer tube bottom under conditions of support, ensure that the vacuum interlayer between Dewar inner-outer tube is not short-circuited destruction because the effect of atmospheric pressure causes inner-outer tube deformation of bottom, while ensureing that Dewar has extremely low leakage hot, cause that the Dewar bottom thickness of hts bulk operating position is very thin, reduces occupancy of the Dewar bottom thickness to levitation gap between hts bulk and permanent magnetic guideway as far as possible again.The thin bottom Dewar of the utility model high-temperature superconductor permanent magnet suspension low drain heat can ensure that hts bulk works in low temperature environment long-time stable.
Description
Technical field
It the utility model is related to high temperature superconducting materia low temperature in high-temperature superconductor permanent magnet suspension and maintain Dewar, available for keeping
Hts bulk in high-temperature superconducting maglev train and other high-temperature superconductor permanent-magnet suspenders works long hours in superconduction shape
State, and hts bulk operating temperature can be reduced by small-power chilling unit, hts bulk performance is improved, when keeping its long
Between steady operation.
Background technology
Hts bulk and set of permanent magnets into suspension system there is the remarkable advantage that suspending power is big, autostability is strong, have
Prestige is widely applied to the numerous areas such as superconducting bearing, superconduction flywheel energy storage system and high temperature superconductor magnetic levitation vehicle.
However, the magnetic field due to the increase of hts bulk and permanent magnet surfaces distance, acting on hts bulk
Intensity decays rapidly；And hts bulk is typically placed in cooled cryostat to keep it to work in liquid nitrogen.To make full use of
The magnetic field in permanent magnet surfaces space, it is necessary to Dewar bottom thickness is reduced as far as possible, so as to reduce its occupancy to Serpentine Gallery Pavilion, to carry
Higher suspension performance, and ensure the stabilization safe for operation of suspension system.
In addition, hts bulk suspendability additionally depends on operating temperature.The reduction of usual operating temperature causes high temperature to surpass
Guide block suspendability raises.Hts bulk operating temperature is further reduced by chilling unit to the liquid-gas phase transition temperature of nitrogen
(77K) below, it is expected to improves superconducting block suspendability.This requires Dewar to have extremely low leakage thermal characteristics, is set with reducing refrigeration
Standby cooling power, reduce energy consumption.
Therefore design is that high-temperature superconductor permanent magnet suspension is able to commonly used key with the Dewar that bottom is thin, low drain is hot.
To obtain relatively low leakage thermal effect, high-temperature superconductor permanent magnet suspension Dewar design at present is generally using inner-outer tube and inside and outside
The three-decker of vacuum interlayer is set between courage.However, work in the Dewar between hts bulk and tracks of permanent magnetism levitation gap
Bottom vacuum interlayer is very thin, due to the extrusion effect of atmospheric pressure, Dewar inner-outer tube bottom will be caused to deform and produce short
Road, so as to cause the failure of vacuum interlayer athermic effect.To avoid this case, traditional high-temperature superconductor permanent magnet suspension Dewar is adopted
Local location between inner-outer tube bottom installs the preferable glass reinforced plastic support of thermal insulation additional, to avoid the direct short of inner-outer tube
Road.If Fig. 1 is traditional Dewar structure sectional view, it is the column fiberglass branch being placed between inner-outer tube bottom that arrow is signified in figure
Support.However, the support of this installation also provides passage for heat transfer simultaneously.This causes current high-temperature superconductor permanent magnet suspension Dewar
Leakage heat it is larger, the liquid nitrogen storage time is shorter, also cause in actual applications install additional helium cycle refrigeration Yin Duwa leakage heat it is excessive and
Seem meaningless.
Utility model content
The purpose of this utility model is to provide a kind of thin bottom and the thermoae low practical high-temperature superconductor permanent magnet suspension Dewar of leakage.By
It is thermoae low in leaking, low power helium chilling unit can be used, the low-temperature space that it is operated between 30K-77K is made with relatively low energy consumption
Between, so as to obtain good magnetic suspension characteristic.
The technical solution adopted in the utility model：
A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat, knot is strengthened by suspension bearing structure, inner bag, liner at the bottom
Structure, outer courage, outer courage bottom reinforcement structure, vacuum insulation interlayer, cooling component are formed.The structure of described liner at the bottom reinforcement structure
Turn into：Rectangular liner at the bottom reinforcing frame 10 is welded by channel-section steel, and longitudinally reinforced square steel tube 13 is formed；Liner at the bottom is strengthened
Frame 10 is connected with longitudinally reinforced square steel tube 13 in adjoining position with welding manner, and the interior plate 9 that is each adjacent and
Inner bag side plate 14 is connected to become liner at the bottom reinforcement structure using Type of Welding, is acted on reducing interior plate 9 in atmospheric pressure
Under be deformed, so as to avoid interior plate 9 and outer courage bottom plate 4, the built-in square steel 7 on outer courage bottom plate 4 from producing short circuit, it is ensured that bottom
Portion's vacuum interlayer 8 is not destroyed.
The composition of described outer courage bottom reinforcement structure is：Reinforcing frame 3 outside outer courage is set along outer courage bottom outside, outside outer courage
Reinforcing frame welds together with outer courage side plate 2 and outer courage bottom plate 4 in adjoiner；Along square steel 7, built-in side built in outer courage bottom inside
Steel welds with outer courage bottom plate 4 and outer courage side plate 2 in adjoiner；The outer reinforcing frame 3 of outer courage forms overall stress frame with built-in square steel 7
Frame, it is deformed at atmosheric pressure with reducing outer courage bottom plate 4；
The composition of described suspension bearing structure is：By being sealed in the hts bulk 5 of inner bag, being placed on hts bulk
Porous bearing plate 6, be placed in the fiberglass stress truss 18 in inner side of liner space and couple inner-outer tube and ensure inner-outer tube phase
Four fiberglass frustums 22 of locus are collectively formed；Fiberglass stress truss 18 is fixed with longitudinally reinforced square steel tube 13 to be connected
Connect；
Outer courage is configured to：The closed structure that flange 1 is formed with outer courage side plate 2 and outer courage bottom plate 4 with welding manner.Outer courage side
Wall sets a vacuum pumping mouth 15, in order to the bottom vacuum interlayer 8 inner-outer tube, and on other directions between inner-outer tube
Vacuum interlayer 21 vacuumizes；Outer courage bottom reinforcement structure：The outer reinforcing frame 3 of outer courage arranges along outer courage bottom outside, and with outer courage side
Plate 2 and outer courage bottom plate 4 weld together in adjoiner, and built-in square steel 7 welds with outer courage bottom plate 4 and outer courage side plate 2 in adjoiner
Connect, so that the outer reinforcing frame 3 of outer courage forms overall stress frame with built-in square steel 7, to reduce outer courage bottom plate 4 in atmospheric pressure
Under be deformed.Inner bag is formed：Closed knot is formed using welding manner by liner top plate 19 and inner bag side plate 14 and interior plate 9
Structure is formed.Wherein liner top plate 19, inner bag side plate 14 and interior plate 9 is antiradiation thermal insulation layer and stainless steel composite material, its
Antiradiation thermal insulation layer is respectively facing vacuum interlayer 8 and vacuum interlayer 21.Interior plate 9 is corresponding to outer courage bottom reinforcement structure
The built-in position of square steel 7, using concave form, to keep the bottom vacuum between square steel 7 built in interior plate 9 and outer courage bottom to press from both sides
The space thickness of layer 8；Liner at the bottom reinforcement structure：Rectangular liner at the bottom reinforcing frame 10 is welded by channel-section steel, and longitudinal direction adds
Strong square steel tube 13 is formed.Liner at the bottom reinforcing frame 10 is connected with longitudinally reinforced square steel tube 13 in adjoining position with welding manner, and
And the interior plate 9 and inner bag side plate 14 being each adjacent are connected to become liner at the bottom reinforcement structure using Type of Welding, with
Reduce interior plate 9 to be deformed under atmospheric pressure effect, so as to avoid interior plate 9 and outer courage bottom plate 4, outer courage bottom plate 4
On built-in square steel 7 produce short circuit, it is ensured that bottom vacuum interlayer 8 is not destroyed.Vacuum insulation interlayer is configured to：By interior plate
9 and outer courage bottom plate 4 and outer courage bottom built in thickness is 1mm between square steel 7 bottom vacuum interlayer 8, and in addition to bottom, other
Vacuum interlayer 21 between direction in space upper inner-liner and outer courage collectively forms；Suspension bearing structure：Surpassed by the high temperature for being sealed in inner bag
Guide block 5, porous bearing plate 6, fiberglass stress truss 18, and couple inner-outer tube and ensure the four of inner-outer tube relative tertiary location
Individual fiberglass frustum 22 collectively forms suspension bearing structure.Wherein porous bearing plate 6 is fixed on inner bag by fastening bolt 12
On bottom reinforcing frame 10, fiberglass stress truss 18 is fixedly connected with longitudinally reinforced square steel tube 13.Hts bulk 5 and permanent magnetism rail
Road 11 acts on caused suspending power through bearing plate 6, and glass is delivered to by liner at the bottom reinforcing frame 10 and longitudinally reinforced square steel tube 13
Glass steel stress truss 18, and after through liner top plate 19 by connection inner-outer tube and keep four glass of inner-outer tube relative tertiary location
Suspending power is delivered to flange 1 by steel pricker platform 22；Cooling component：It is made up of coolant tubes 16, interface 17, and liquid nitrogen filler 20.
Low-temperature helium enters coolant tubes 16 through interface 17 and the liquid nitrogen injected in inner bag through liquid nitrogen filler 20 is done at further cooling
Reason, in order to improve the performance of hts bulk 5.
Compared with prior art, the beneficial effects of the utility model are：
The utility model device, in inner-outer tube bottom design reinforcement structure, ensureing arrangement hts bulk position Dewar
While bottom is thin, avoids inner-outer tube bottom and deformed caused by atmospheric pressure acts on and form short circuit.Due to not such as tradition
Mode, glass reinforced plastic support is set in inner-outer tube bottom vacuum interlayer, so as to significantly reduce the leakage of Dewar heat so that the Dewar
After once liquid nitrogen is filled, it effectively keeps hts bulk to work in liquid nitrogen temperature 77K time greatly prolonging.Meanwhile by
Thermoae low in Dewar leakage, this to use less cooling power, you can further reduces hts bulk operating temperature, carries
High hts bulk performance.
The utility model reduces inner-outer tube deformation of bottom by being respectively arranged reinforcement structure in Dewar inner-outer tube bottom, from
And under conditions of being not added with support in the vacuum interlayer between Dewar inner-outer tube bottom, ensure the vacuum interlayer between Dewar inner-outer tube
Be not short-circuited destruction because the effect of atmospheric pressure causes inner-outer tube deformation of bottom, ensure Dewar have it is extremely low leakage heat it is same
When, cause that the Dewar bottom thickness of hts bulk operating position is very thin, reduces Dewar bottom thickness to high temperature as far as possible again
The occupancy of levitation gap between superconducting block and permanent magnetic guideway；By suspension bearing structure, it both ensure that high-temperature superconductor permanent magnet suspension was low
The bearing capacity of the thin bottom Dewar of leakage heat, the mutual locus of inner-outer tube are stable, in turn ensure that the low drain thermal characteristics of Dewar；By adopting
With coolant tubes, the operating temperature of hts bulk is further reduced with low-temperature helium, improves the suspension characteristic of hts bulk.Should
The thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat can ensure that hts bulk works in low temperature environment long-time stable.
Brief description of the drawings
Fig. 1 is traditional Dewar inner-outer tube perspective cut-away schematic view, it is shown that the supporting construction between inner-outer tube bottom.
Fig. 2 is the positive sectional view of the utility model device.
Fig. 3 is the A-A of the utility model device to sectional view.
Fig. 4 is the partial enlarged view of B location in Fig. 1.
Fig. 5 is liner at the bottom reinforcement structure and the structure perspective diagram of fiberglass stress truss 18.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 2-Fig. 5 expresses one embodiment of the present utility model：
The thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat, by suspension bearing structure, inner bag, liner at the bottom reinforcement structure,
Outer courage, outer courage bottom reinforcement structure, vacuum insulation interlayer, cooling component are formed.Outer courage is configured to：Flange 1 and outer courage side plate 2 and
The closed structure that outer courage bottom plate 4 is formed with welding manner.Outer courage side wall sets a vacuum pumping mouth 15, in order to inner-outer tube
Bottom vacuum interlayer 8, and vacuum interlayer 21 on other directions between inner-outer tube vacuumizes；Outer courage bottom reinforcement structure：Outside
The outer reinforcing frame 3 of courage is arranged along outer courage bottom outside, and is welded together with outer courage side plate 2 and outer courage bottom plate 4 in adjoiner, and interior
Put square steel 7 to weld in adjoiner with outer courage bottom plate 4 and outer courage side plate 2, so that the outer reinforcing frame 3 of outer courage and the built-in structure of square steel 7
Integral stress frame, it is deformed at atmosheric pressure with reducing outer courage bottom plate 4.Inner bag is formed：By liner top plate 19 with it is interior
Courage side plate 14 and interior plate 9 form closed structure using welding manner and formed.Wherein liner top plate 19, inner bag side plate 14 and interior
Courage bottom plate 9 is antiradiation thermal insulation layer and stainless steel composite material, and its antiradiation thermal insulation layer is respectively facing vacuum interlayer 8 and vacuum clip
Layer 21.Interior plate 9 is in the position of built-in square steel 7 corresponding to outer courage bottom reinforcement structure, using concave form, to keep inner bag
The space thickness of bottom vacuum interlayer 8 between square steel 7 built in bottom plate 9 and outer courage bottom；Liner at the bottom reinforcement structure：By channel-section steel
Rectangular liner at the bottom reinforcing frame 10 is welded, and longitudinally reinforced square steel tube 13 is formed.Liner at the bottom reinforcing frame 10 and longitudinal direction
Strengthen square steel tube 13 to connect with welding manner in adjoining position, and the interior plate 9 and inner bag side plate 14 being each adjacent
Liner at the bottom reinforcement structure is connected to become using Type of Welding, is deformed with reducing interior plate 9 under atmospheric pressure effect,
So as to avoid interior plate 9 from producing short circuit with the built-in square steel 7 on outer courage bottom plate 4, outer courage bottom plate 4, it is ensured that bottom vacuum interlayer 8
It is not destroyed.Vacuum insulation interlayer is configured to：Thickness between the square steel 7 as built in interior plate 9 and outer courage bottom plate 4 and outer courage bottom
For 1mm bottom vacuum interlayer 8, and in addition to bottom, the vacuum interlayer 21 between other direction in space upper inner-liners and outer courage is common
Form；Suspension bearing structure：By being sealed in the hts bulk 5, porous bearing plate 6, fiberglass stress truss 18 of inner bag, and
Connection inner-outer tube simultaneously ensures that four fiberglass frustums 22 of inner-outer tube relative tertiary location collectively form suspension bearing structure.Wherein
Porous bearing plate 6 is fixed on liner at the bottom reinforcing frame 10 by fastening bolt 12, and fiberglass stress truss 18 adds with longitudinal direction
Strong square steel tube 13 is fixedly connected.Hts bulk 5 acts on caused suspending power through bearing plate 6 with tracks of permanent magnetism 11, passes through inner bag
Bottom reinforcing frame 10 and longitudinally reinforced square steel tube 13 are delivered to fiberglass stress truss 18, and after through liner top plate 19 by connection
Outer courage simultaneously keeps four fiberglass frustums 22 of inner-outer tube relative tertiary location that suspending power is delivered into flange 1；Cooling component：By
Coolant tubes 16, interface 17, and liquid nitrogen filler 20 are formed.Low-temperature helium through interface 17 enter coolant tubes 16 in inner bag through liquid
The liquid nitrogen that nitrogen filler 20 injects does further cooling processing, in order to improve the performance of hts bulk 5.
Application Example
Embodiment one：Liquid nitrogen temperature high-temperature superconductor permanent magnet suspension
A. the spacing of Dewar bottom and tracks of permanent magnetism 11 is set
B. liquid nitrogen is filled to Dewar inside by liquid nitrogen filler 20.After hts bulk 5 enters superconducting state, in Dewar
Prolonged stable suspersion is formed between the hts bulk 5 and tracks of permanent magnetism 11 in portion.
Embodiment two：Less than liquid nitrogen temperature high-temperature superconductor permanent magnet suspension
A. the spacing of Dewar bottom and tracks of permanent magnetism 11 is set.
B. liquid nitrogen is filled to Dewar inside by liquid nitrogen filler 20, hts bulk 5 is entered superconducting state.
C. circulated through interface 17 to coolant tubes 16 and low-temperature helium is provided.Low-temperature helium is through coolant tubes (16) to Dewar inside liquid
Nitrogen carries out continuing refrigeration cooling, so as to significantly improve the suspendability of hts bulk 5, and keeps prolonged stable suspersion.
Claims (4)
1. a kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat, knot is strengthened by suspension bearing structure, inner bag, liner at the bottom
Structure, outer courage, outer courage bottom reinforcement structure, vacuum insulation interlayer, cooling component are formed, it is characterised in that described liner at the bottom
The composition of reinforcement structure is：Rectangular liner at the bottom reinforcing frame (10), and longitudinally reinforced square steel tube (13) are welded by channel-section steel
Form；Liner at the bottom reinforcing frame (10) is connected with longitudinally reinforced square steel tube (13) in adjoining position with welding manner, and each
The interior plate (9) and inner bag side plate (14) being adjacent are connected to become liner at the bottom reinforcement structure using Type of Welding；
The composition of described outer courage bottom reinforcement structure is：Reinforcing frame (3) outside along the outer courage of outer courage bottom outside setting, outer courage are additional
Strong frame welds together with outer courage side plate (2) and outer courage bottom plate (4) in adjoiner；It is interior along square steel (7) built in outer courage bottom inside
Square steel is put to weld in adjoiner with outer courage bottom plate (4) and outer courage side plate (2)；The outer reinforcing frame (3) of outer courage is formed with built-in square steel (7)
Overall stress frame, it is deformed at atmosheric pressure with reducing outer courage bottom plate (4)；
The composition of described suspension bearing structure is：By being sealed in the hts bulk (5) of inner bag, being placed on hts bulk
Porous bearing plate (6), the fiberglass stress truss (18) for being placed in inner side of liner space and couple inner-outer tube and ensure inner-outer tube
Four fiberglass frustums (22) of relative tertiary location collectively form；Fiberglass stress truss (18) and longitudinally reinforced square steel tube
(13) it is fixedly connected.
2. the thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat according to claim 1, it is characterised in that the inner bag structure
Turn into：Closed structure is formed by liner top plate (19) and inner bag side plate (14) and interior plate (9) using welding manner to form；Its
Middle liner top plate (19), inner bag side plate (14) and interior plate (9) are antiradiation thermal insulation layer and stainless steel composite material, its anti-spoke
Penetrate thermal insulation layer and be respectively facing bottom vacuum interlayer (8) and vacuum interlayer (21)；Interior plate (9) is strengthened corresponding to outer courage bottom
Built-in square steel (7) position of structure, using concave form, to keep between square steel (7) built in interior plate (9) and outer courage bottom
Bottom vacuum interlayer (8) space thickness.
3. the thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat according to claim 1, it is characterised in that the vacuum is exhausted
Hot interlayer is configured to：Thickness is 1mm bottom between square steel (7) built in interior plate (9) and outer courage bottom plate (4) and outer courage bottom
Vacuum interlayer (8)；Vacuum interlayer (21) in addition to bottom between other direction in space upper inner-liners and outer courage.
4. the thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain according to claim 1 heat, it is characterised in that described porous to hold
Pressing plate (6) is fixed on liner at the bottom reinforcing frame (10) by fastening bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649702.1U CN206890073U (en) | 2017-06-06 | 2017-06-06 | A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649702.1U CN206890073U (en) | 2017-06-06 | 2017-06-06 | A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat |
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| Publication Number | Publication Date |
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| CN206890073U true CN206890073U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720649702.1U Expired - Fee Related CN206890073U (en) | 2017-06-06 | 2017-06-06 | A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120522A (en) * | 2017-06-06 | 2017-09-01 | 西南交通大学 | A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat |
| CN109681771A (en) * | 2019-01-18 | 2019-04-26 | 青岛凯迪力学应用研究所有限公司 | The floated cryogenic liquid storage of liner and shipping container |
-
2017
- 2017-06-06 CN CN201720649702.1U patent/CN206890073U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120522A (en) * | 2017-06-06 | 2017-09-01 | 西南交通大学 | A kind of thin bottom Dewar of high-temperature superconductor permanent magnet suspension low drain heat |
| CN109681771A (en) * | 2019-01-18 | 2019-04-26 | 青岛凯迪力学应用研究所有限公司 | The floated cryogenic liquid storage of liner and shipping container |
| CN109681771B (en) * | 2019-01-18 | 2023-10-03 | 青岛凯迪力学应用研究所有限公司 | Inner container suspension type low-temperature liquid storage and transportation container |
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