CN107139771A - Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train - Google Patents
Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train Download PDFInfo
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- CN107139771A CN107139771A CN201710408384.4A CN201710408384A CN107139771A CN 107139771 A CN107139771 A CN 107139771A CN 201710408384 A CN201710408384 A CN 201710408384A CN 107139771 A CN107139771 A CN 107139771A
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- cryostat
- temperature
- magnetic levitation
- levitation device
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention provides a kind of temperature superconductive magnetic levitation device and high-temperature superconducting maglev train, temperature superconductive magnetic levitation device includes：Cooling device and hts bulk；The cooling device includes cryostat, vacuumizes pressure reducer；There is the host cavity of closing, the hts bulk is fixed in the host cavity in the cryostat, the host cavity is used to store liquid nitrogen；The pressure reducer that vacuumizes is used to extract the gas in the cryostat to reduce the pressure in the cryostat.The present invention causes liquid nitrogen to enter supercooled state (77K temperature below) by way of evacuating decompression, so as to realize the supercooling purpose to hts bulk instead of refrigeration machine, lifts the suspendability of suspension system.
Description
Technical field
The present invention relates to high-temperature superconducting magnetic levitation technical field, more particularly to a kind of temperature superconductive magnetic levitation device and high temperature
Levitated superconducting magnet train.
Background technology
High-temperature superconductor has benefited from its own unique superconducting characteristic, when temperature is less than transition temperature 93K, superconduction physical efficiency
Enough stable suspersions in the case of uncontrolled need liquid helium to cool down and need complexity on permanent magnet compared to cryogenic superconductor
Low-temperature insulation system for, high-temperature superconductor transition temperature be higher than liquid nitrogen temperature (77K), greatly reduce technical difficulty, phase
Application field fast development is closed, wherein, high temperature superconductor magnetic levitation vehicle is exactly an important applied field.At present, domestic and international high temperature
Super-conductive magnetic suspension experiment line is using container of the open type cryostat as fixed superconductor, by its internal perfusion liquid
Nitrogen cools down superconductor.According to superconductor own temperature characteristic, the superconducting characteristic of superconductor can be obtained below 77K temperature
Further lifting.Therefore, researcher is related to this angle from superconduction bulk properties and temperature, using refrigeration machine by superconduction
Body is cooled to below 77K temperature, and then studies superconductor suspendability variation with temperature situation.Result of study is shown, works as temperature
When degree is in this temperature range of 63K-77K, the suspendability lifting effect of superconductor is very notable, declines unit temperature correspondence
The raising efficiency of suspendability is higher；But after temperature continues to be reduced to below 63K, the growth of suspendability starts to satisfy
And trend, although further reduction temperature is remained able to so that suspendability has been lifted, but lifting amplitude is smaller, declines unit
The raising efficiency of temperature correspondence suspendability is relatively low.Therefore, from realizing that difficulty, refrigeration cost, multiple angles such as efficiency ratio integrate
Consider, 63K is critical value at a temperature of ideal suspendability lifting.In order to which the superconduction for giving full play to high-temperature superconductor is special
Property, lifting high temperature superconductor magnetic levitation vehicle suspending power, meet load-carrying demand growing in current engineer applied, it is proposed that will
The operating temperature of vehicle-mounted superconduction block material is controlled in more than 63K and close to 63K.
At present, the existing liquid nitrogen type of cooling can only provide and maintain 77K temperature environment；By contrast, though refrigeration machine
Superconductor can be so cooled near 63K warm areas, but be constrained to the volume and power of refrigerant itself, be suitable only for
The relatively small single superconduction block material of volume is cooled down in experiment, it is difficult to meet and the refrigeration and low temperature of a large amount of vehicle-mounted bulks are maintained to want
Ask.So, in the Study of way aspect being subcooled using vehicle-mounted superconduction block material, not yet there is preferable scheme to realize magnetcisuspension at present
The further lifting of floating system suspension performance.
The content of the invention
For above-mentioned technical problem present in prior art, The embodiment provides a kind of high-temperature superconductor magnetcisuspension
Floating device.
In order to solve the above problems, the embodiments of the invention provide following technical scheme：
A kind of temperature superconductive magnetic levitation device, including：Cooling device and hts bulk；
The cooling device includes cryostat, vacuumizes pressure reducer；There are the receipts of closing in the cryostat
Cavity volume, the hts bulk is fixed in the host cavity, and the host cavity is used to store liquid nitrogen；It is described to vacuumize pressure reducer
For extracting the gas in the cryostat to reduce the pressure in the cryostat.
Preferably, offer the air inlet connected with the host cavity and gas outlet on the cryostat, it is described enter
Overflow valve is provided with gas port, the gas outlet is connected with the pressure reducer that vacuumizes by bellows.
Preferably, joint is installed between the gas outlet and the bellows.
Preferably, the operating pressure of the overflow valve is 0.12atm.
Preferably, the pressure reducer that vacuumizes is vavuum pump.
The invention also discloses a kind of high-temperature superconducting maglev train, including train body, in addition to it is arranged at the row
The above-mentioned temperature superconductive magnetic levitation device of the bottom of car body.
Preferably, the bottom of the train body is provided with multipair cryostat, and each pair cryostat is in train
Width is arranged side by side；It is described to vacuumize on the train body that pressure reducer is arranged between each pair cryostat.
Preferably, the cryostat is fixed on the bottom of train body by connecting plate.
Compared with prior art, what temperature superconductive magnetic levitation device of the invention and high-temperature superconducting maglev train possessed has
Beneficial effect is：The present invention causes liquid nitrogen to enter supercooled state (77K temperature below) by way of evacuating decompression, so that instead of
Refrigeration machine realizes the supercooling purpose to hts bulk, lifts the suspendability of suspension system.
Brief description of the drawings
Fig. 1 is the structural representation of temperature superconductive magnetic levitation device provided in an embodiment of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is the view that temperature superconductive magnetic levitation device provided in an embodiment of the present invention is installed on train.
In figure：
1- hts bulks；2- cryostats；3- air inlets；4- overflow valves；5- connecting plates；6- gas outlets；7- joints；
8- bellowss；9- vacuumizes pressure reducer；10- train bodies.
Embodiment
Below, the specific embodiment of the present invention is described in detail with reference to accompanying drawing, but it is not as limiting to the invention.
As shown in Figures 1 to 3, The embodiment provides a kind of temperature superconductive magnetic levitation device, the high-temperature superconductor magnetic
Levitation device is used to install ON TRAINS to form magnetic suspension train, and high-temperature superconducting magnetic levitation dress includes：Cooling device and
Hts bulk 1.Cooling device includes cryostat 2, vacuumizes pressure reducer 9；There is the collecting of closing in cryostat 2
Chamber, hts bulk 1 is fixed in host cavity, and host cavity is used to store liquid nitrogen；Vacuumizing pressure reducer 9 is used to extract low temperature holding
Gas in device 2 is to reduce the pressure in cryostat 2.Specifically, offer what is connected with host cavity on cryostat 2
Overflow valve 4 is provided with air inlet 3 and gas outlet 6, air inlet 3, gas outlet 6 is connected with vacuumizing pressure reducer 9 by bellows 8
It is logical.Joint 7 is installed between gas outlet 6 and bellows 8.The operating pressure of overflow valve 4 is 0.12atm.Vacuumizing pressure reducer 9 is
Vavuum pump.
The use step of above-mentioned temperature superconductive magnetic levitation device is：First, under atmospheric pressure environment, by air inlet 3 to
The internal-filling liquid nitrogen of cryostat 2, liquid nitrogen is cooled down to the hts bulk 1 in subcolling condenser；Treat that temperature is cooled to 77K
Afterwards, open and vacuumize pressure reducer 9 to the progress evacuation decompression of cryostat 2, its air pressure inside is maintained at certain negative pressure state,
Liquid nitrogen is lowered into supercooled state with air pressure, so as to realize the supercooling purpose of hts bulk 1.
The present invention causes liquid nitrogen to enter according to liquid nitrogen temperature and the relation of ambient pressure by way of evacuating decompression
Cold state (77K temperature below), so as to realize the supercooling purpose to hts bulk 1 instead of refrigeration machine, lifts suspension system
Suspendability.The cooling device of the present invention is cooled down by the way of vacuumizing to be easier to realize and remains negative inside levitation device
Pressure condition, with enforcement difficulty is small, low power consumption and other advantages.The present invention is additionally arranged overflow valve 4, to control in cryostat 2
The stable gas pressure value in portion.When being reduced to 0.12atm due to air pressure (liquid nitrogen temperature is changed into 63K or so), liquid nitrogen can large area solidification
For solid nitrogen；And solid nitrogen is in flakes, quality is more loose, and air gap is larger, and mobility is poor, can cause the temperature of hts bulk 1
Skewness is spent, or the local operation for quenching, endangering magnetically supported vehicle of hts bulk 1 will be caused.So, set up overflow valve 4
And threshold value is set near more than 0.12atm, it on the one hand ensure that the internal stability of cryostat 2 is maintained at this air pressure
State, it is ensured that the temperature of hts bulk 1 can avoid air pressure excessive descent again close to suspending power saturation temperature, on the other hand and
Caused liquid nitrogen solidification, it is ensured that traffic safety.
The present invention is not on the basis of the quantity of track structure and hts bulk 1 is changed, by vacuumizing pressure reducer 9
To the inside of cryostat 2 evacuate decompression to reach the purpose of liquid nitrogen supercooling, so that hts bulk 1 is in supercooled state
Under given play to more preferable superconductivity, lift the performance of suspension system.From practical standpoint consider, the present invention have practicality compared with
By force, the advantages of simple in construction, enforcement difficulty is small, suspendability raising efficiency is high；From a cost perspective, superconduction is not both increased
The cost of this basic floating unit of body-track, does not increase the cost in terms of superconductor refrigeration yet, and vacuumizes pressure reducer 9
With the grade of overflow valve 4 as technology very ripe device, cost is relatively low.So, super-conductive magnetic suspension device of the invention is to carry
The ideal chose of train suspendability is risen, is the effective scheme for solving heavy－duty requirement in practical application.
As shown in Figures 2 and 3, the invention also discloses a kind of high-temperature superconducting maglev train, including train body 10, also
Including be arranged at train body 10 bottom above-mentioned temperature superconductive magnetic levitation device preferably, the bottom of train body 10 is set
Multipair cryostat 2 is equipped with, each pair cryostat 2 is arranged side by side in the width of train；Pressure reducer 9 is vacuumized to set
On train body 10 between each pair cryostat 2.Preferably, cryostat 2 is fixed on train sheet by connecting plate 5
The bottom of body 10.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Modification or equivalent substitution are planted, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of temperature superconductive magnetic levitation device, it is characterised in that the temperature superconductive magnetic levitation device includes：Cooling device with
And hts bulk；
The cooling device includes cryostat, vacuumizes pressure reducer；There is the host cavity of closing in the cryostat,
The hts bulk is fixed in the host cavity, and the host cavity is used to store liquid nitrogen；The pressure reducer that vacuumizes is used for
The gas in the cryostat is extracted to reduce the pressure in the cryostat.
2. temperature superconductive magnetic levitation device according to claim 1, it is characterised in that offered on the cryostat
Overflow valve is provided with the air inlet connected with the host cavity and gas outlet, the air inlet, the gas outlet is taken out with described
Vacuum pressure reducer is connected by bellows.
3. temperature superconductive magnetic levitation device according to claim 2, it is characterised in that the gas outlet and the bellows
Between joint is installed.
4. temperature superconductive magnetic levitation device according to claim 2, it is characterised in that the operating pressure of the overflow valve is
0.12atm。
5. temperature superconductive magnetic levitation device according to claim 1, it is characterised in that the pressure reducer that vacuumizes is vacuum
Pump.
6. a kind of high-temperature superconducting maglev train, including train body, it is characterised in that also including being arranged at the train body
Bottom the temperature superconductive magnetic levitation device as described in any one in claim 1 to 5.
7. high-temperature superconducting maglev train according to claim 6, it is characterised in that the bottom of the train body is set
There is multipair cryostat, each pair cryostat is arranged side by side in the width of train；It is described to vacuumize pressure reducer setting
On the train body between each pair cryostat.
8. high-temperature superconducting maglev train according to claim 6, it is characterised in that the cryostat passes through connection
Plate is fixed on the bottom of train body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408384.4A CN107139771A (en) | 2017-06-02 | 2017-06-02 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710408384.4A CN107139771A (en) | 2017-06-02 | 2017-06-02 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
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| CN107139771A true CN107139771A (en) | 2017-09-08 |
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| CN201710408384.4A Pending CN107139771A (en) | 2017-06-02 | 2017-06-02 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542271A (en) * | 2020-12-10 | 2021-03-23 | 深圳供电局有限公司 | Liquid nitrogen cooling circulation system |
| WO2023087383A1 (en) * | 2021-11-19 | 2023-05-25 | 中车长春轨道客车股份有限公司 | Superconducting magnet apparatus and superconducting magnetic levitation train |
| WO2023087408A1 (en) * | 2021-11-19 | 2023-05-25 | 中车长春轨道客车股份有限公司 | Magnetic levitation transportation train, and in-vehicle superconducting magnet system of magnetic levitation transportation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0541819A1 (en) * | 1991-05-28 | 1993-05-19 | Nippon Steel Corporation | Method and apparatus for cooling oxide superconductor coil |
| CN1408593A (en) * | 2001-09-18 | 2003-04-09 | 西南交通大学 | Superconductive magnetic suspension train system |
| JP2008283803A (en) * | 2007-05-11 | 2008-11-20 | Railway Technical Res Inst | Superconducting magnet for magnetic-levitation railway vehicle |
| CN105627610A (en) * | 2016-03-15 | 2016-06-01 | 北京美尔斯通科技发展股份有限公司 | High-temperature superconductor refrigerating equipment based on fixed nitrogen |
| CN206781565U (en) * | 2017-06-02 | 2017-12-22 | 西南交通大学 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
-
2017
- 2017-06-02 CN CN201710408384.4A patent/CN107139771A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0541819A1 (en) * | 1991-05-28 | 1993-05-19 | Nippon Steel Corporation | Method and apparatus for cooling oxide superconductor coil |
| CN1408593A (en) * | 2001-09-18 | 2003-04-09 | 西南交通大学 | Superconductive magnetic suspension train system |
| JP2008283803A (en) * | 2007-05-11 | 2008-11-20 | Railway Technical Res Inst | Superconducting magnet for magnetic-levitation railway vehicle |
| CN105627610A (en) * | 2016-03-15 | 2016-06-01 | 北京美尔斯通科技发展股份有限公司 | High-temperature superconductor refrigerating equipment based on fixed nitrogen |
| CN206781565U (en) * | 2017-06-02 | 2017-12-22 | 西南交通大学 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
Non-Patent Citations (2)
| Title |
|---|
| 张博等: "制冷机传导冷却固氮保护的高温超导磁体系统的研究进展", 《低温与超导》 * |
| 张耀平: "适用于真空管道交通的高温超导磁悬浮车低温液氮容器", 《低温与超导》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542271A (en) * | 2020-12-10 | 2021-03-23 | 深圳供电局有限公司 | Liquid nitrogen cooling circulation system |
| WO2023087383A1 (en) * | 2021-11-19 | 2023-05-25 | 中车长春轨道客车股份有限公司 | Superconducting magnet apparatus and superconducting magnetic levitation train |
| WO2023087408A1 (en) * | 2021-11-19 | 2023-05-25 | 中车长春轨道客车股份有限公司 | Magnetic levitation transportation train, and in-vehicle superconducting magnet system of magnetic levitation transportation |
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