CN209479439U - A kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train - Google Patents
A kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train Download PDFInfo
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- CN209479439U CN209479439U CN201920117285.5U CN201920117285U CN209479439U CN 209479439 U CN209479439 U CN 209479439U CN 201920117285 U CN201920117285 U CN 201920117285U CN 209479439 U CN209479439 U CN 209479439U
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Abstract
A kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train, two groups of driving coils are separately fixed in the groove of trapezoidal track wall left and right side walls, 8-shaped Zero flux coil for suspension is fixed in coil cartridge, and two groups of coil cartridges are mounted in the groove of trapezoidal track wall left and right side walls；Two groups of fixed nitrogen low-temperature (low temperature) vessels are fixed in train body left and right side groove through bolt respectively, track type high-temperature superconducting magnet is fixed with through bolt in each fixed nitrogen low-temperature (low temperature) vessel, when train high-speed cruising, the magnetic buoyancy side hanging generated by above-mentioned coil and track type high-temperature superconducting magnet is on trapezoidal track wall.The utility model replaces liquid helium low-temperature superconducting with fixed nitrogen high-temperature superconductor, without using expensive liquid helium, improve the stability and suspendability of superconducting magnet, without installing vehicle-mounted refrigeration machine, train payload is improved, has many advantages, such as that superconducting magnet system structure is simpler, performance is more stable, superconductor dosage is less, operating cost is lower, easy to operate.
Description
Technical field
The utility model relates to the technical fields such as magnetic floating traffic, cryogenic engineering, and in particular to a kind of fixed nitrogen deep cooling high temperature is super
The dynamic aerotrain of conduction.
Background technique
Electrodynamics suspension is a kind of suspended pattern that train suspension is realized using Lenz's law.The magnetic field that vehicle-mounted magnet generates,
The conductor plate or coil being mounted on ground rail are cut in train movement, prevents magnetic to generate in conductor plate or coil
The induced current of variations of flux, electric current and magnet interact and then generate repellency magnetic buoyancy, and magnetic buoyancy is with train speed
Increase and increase, after train reaches certain speed, magnetic buoyancy and train gravitational equilibrium, which are realized, to suspend, and suspension air gap compared with
Greatly.Suspension and guiding can be achieved at the same time in electrodynamics suspension, does not need complicated control system, has good autostability.According to
The difference of ground rail form, electrodynamics suspension can be divided into Zero flux coil form and conductive template.It is larger relative to loss and magnetic resistance
Conductive template, 8-shaped Zero flux coil form have many advantages, such as high floating resistance than, big levitation gap, autostability it is good, therefore answered
High speed electric aerotrain for Ribenshanli County.
Liquid nitrogen is just changed into fixed nitrogen when temperature is reduced to 63.14K or less, will occur when continuing to cool to 35.61K
Solid-solid phase-change, fixed nitrogen can absorb a large amount of thermal energy due to the sharp increase of thermal capacitance at this time, using fixed nitrogen as high-temperature superconducting magnet
Refrigerant can inhibit magnet temperature rise, to improve the thermal stability of magnet.In addition to this, also with the cooling superconducting magnet of fixed nitrogen
Power supply, cold source work a few hours can be detached from by way of subsidiary superconducting switch；Fixed nitrogen and superconducting magnet can be formed one it is whole
System system, will not because cryogenic liquid natural liquid level caused by system it is unstable, to improve the movement of superconducting magnet system
Stability.
There are three types of the types of cooling of general fixed nitrogen: liquid helium conduction is cooling, vacuum decompression is cooling, refrigeration machine conduction cooling.Liquid
Helium conduction is cooling not only to need complicated liquid helium cooling system and mode of operation, but also needs high liquid helium consumption, exists
The high problem of operating cost；Although vacuum decompression cooling structure is simple and convenient to operate, the fixed nitrogen obtained in this way has
There is very high thermal resistance, and its temperature that cools is limited；And refrigeration machine conduction is cooling with without liquid helium, compact-sized, operation
Liquid nitrogen, can directly be become fixed nitrogen by the type of cooling, and do not having the case where refrigeration machine by the convenient, advantages such as operating cost is low
Under, also temperature can be maintained to realize superconducting magnet independence portable by the big thermal capacitance of fixed nitrogen.
The electronic aerotrain of current superconduction mainly passes through liquid helium low-temperature (low temperature) vessel and vehicle-mounted refrigeration machine to low-temperature superconducting magnetic
Body is cooled down, and vehicle-mounted refrigeration machine liquefies the helium for evaporating heating to cool down magnet, and hot and cold helium carries out closed loop, can be only
Guarantee superconducting magnet long-term work by electric energy, but its structure is complex, operating difficulties, operating cost are very high, and disturbs or magnet
A.C.power loss when excitation is easy to increase magnet temperature and then quench, and vehicle-mounted refrigeration machine can also make train cryogenic refrigerating system matter
Amount increases, and reduces the payload of train.
Utility model content
The purpose of the utility model is to provide a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension trains, it is intended to use fixed nitrogen high temperature
Superconduction replaces liquid helium low-temperature superconducting, and without installing vehicle-mounted refrigeration machine, improves the stability and suspendability of vehicle-mounted magnet, simplify
Superconducting magnet system structure improves train payload, reduces operating cost.
Purpose of the utility model is realized as follows: a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train, external three
Two group driving coils of the phase AC power source for propulsion are separately fixed in the groove of trapezoidal track wall left and right side walls, two groups of drives
Moving winding is arranged along respective slot center line, and the 8-shaped Zero flux coil for suspension is fixed in coil cartridge, two groups of lines
Circle cartridge is mounted on through bolt in the groove of trapezoidal track wall left and right side walls and continuous along respective slot center line respectively respectively
Arrangement；Two groups of fixed nitrogen low-temperature (low temperature) vessels are fixed in the left and right side groove of train body through bolt respectively, each fixed nitrogen low-temperature (low temperature) vessel
It is interior to be fixed with track type high-temperature superconducting magnet through bolt, it is high by 8-shaped Zero flux coil and track type when train high-speed cruising
The magnetic buoyancy side hanging that temperature superconductive magnet generates is on trapezoidal track wall.
The fixed nitrogen low-temperature (low temperature) vessel structure are as follows: inside be vacuum container casing inner wall on be successively lined with radiation protective layer and absolutely
Thermosphere is equipped with multiple track type high-temperature superconducting magnets in the shell, and multiple track type high-temperature superconducting magnet is through superconducting switch
It is connect by conducting wire with hull outside power supply, which is additionally provided with for producing and mending to complete fixed nitrogen in container casing
The interface of the cryocooler cold head filled.
Two side bottom of train body is equipped with the deployable and collapsible auxiliary wheel that train is used in low speed or in emergency circumstances；Institute
Bottom at left and right sides of trapezoidal track wall is stated to arrange equipped with two symmetrically for train in low speed or in emergency circumstances by auxiliary wheel fortune
Capable boss.
The operating temperature of the fixed nitrogen low-temperature (low temperature) vessel is 35K and following.
The track type high-temperature superconducting magnet has superconducting switch, can form Closed-loop Constant-current, the energy in the case where being detached from power conditions
It works independently a few hours.
Sensor is housed, for the amount of nitrogen fixation in real-time monitoring low-temperature (low temperature) vessel in the fixed nitrogen low-temperature (low temperature) vessel.
The system also produced and supplemented with fixed nitrogen:, can be by signal when sensor detects amount of nitrogen fixation lower than rated value
It is transmitted to central control system, central control system transmits a signal to local station, after train arrival is stopped, fixed nitrogen is low
Warm container connect refrigeration with ground cryocooler cold head, completes producing with after supplement for fixed nitrogen, low-temperature (low temperature) vessel and ground refrigeration machine are cold
Head is detached from, and train continues to run.
The beneficial effects of the utility model are: the utility model is used relative to current low-temperature superconducting electrodynamics suspension train
Fixed nitrogen high-temperature superconductor replaces liquid helium low-temperature superconducting, and without installing vehicle-mounted refrigeration machine, solves superconducting magnet system complexity, operation
Problem difficult, operating cost is high reduces train cryogenic refrigerating system quality to improve train payload, reduces low temperature
Dosage of the container base thickness to increase Effective Suspension air gap, reduce superconductor.The utility model has superconducting magnetic system
The advantages that structure of uniting is simpler, performance is more stable, superconductor dosage is less, operating cost is lower, easy to operate.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 1 a is the portion the A enlarged drawing of Fig. 1.
Fig. 2 is the diagrammatic cross-section of the utility model.
Fig. 3 is low-temperature (low temperature) vessel (when producing fixed nitrogen) schematic diagram of internal structure of the utility model.
Fig. 4 is the train operation and fixed nitrogen supplementary flow process schematic diagram of the utility model.
Specific embodiment
In order to make the purpose of this utility model, technical solution and advantage definitely, below with track type high-temperature superconductor magnetic
For body, in conjunction with attached drawing and specific example, the utility model is elaborated, but should not be construed as to the utility model
It limits.
Fig. 1, Fig. 2 shows this fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension trains.External three-phase alternating-current supply is for propulsion
Two groups of driving coils are separately fixed in the groove of 2 left and right side walls of trapezoidal track wall, and two groups of driving coils 1 are along respective slot
Center line setting, the 8-shaped Zero flux coil 3 for suspension are fixed in coil cartridge 4, and two groups of coil cartridges are respectively through bolt
It is mounted in the groove of trapezoidal track wall left and right side walls and continuously arranges along respective slot center line respectively；Two groups of fixed nitrogen low temperature
Container 6 is fixed in the left and right side groove of train body 5 through bolt respectively, is fixed in each fixed nitrogen low-temperature (low temperature) vessel through bolt
Track type high-temperature superconducting magnet 7, when train high-speed cruising, by 8-shaped Zero flux coil 3 and track type high-temperature superconducting magnet 7
The magnetic buoyancy side hanging of generation is on trapezoidal track wall.
Referring to Fig. 3,6 structure of fixed nitrogen low-temperature (low temperature) vessel are as follows: be successively lined with radiation protection on the internal container casing inner wall for vacuum
Layer 13 and heat insulation layer 12 is equipped with multiple track type high-temperature superconducting magnets 7, multiple track type high-temperature superconducting magnet in the shell
7 are connect by conducting wire with hull outside power supply through superconducting switch 10, which is additionally provided with for being complete in container casing
The interface for the cryocooler cold head 8 produced and supplemented at fixed nitrogen.
The train body 5 can be detached from without installing refrigeration machine, the fixed nitrogen low-temperature (low temperature) vessel 6 by the big thermal capacitance of fixed nitrogen 9
Cold source works independently a few hours, it is only necessary to fixed nitrogen low-temperature (low temperature) vessel 6 be connect system with ground cryocooler cold head 8 in cooling capacity deficiency
It is cold.
The coil cartridge 4 carries out installation fixation to 8-shaped Zero flux coil 3 by the internal card slot being cast with.
2 two sides of trapezoidal track wall are symmetrically arranged with the groove for installing fixed coil cartridge 4 and driving coil 1, and
The two symmetrical boss of column are equipped in arranged on left and right sides bottom, runs for train in low speed or is in emergency circumstances transported by auxiliary wheel
Row.
5 two sides of train body are symmetrically arranged with the groove for installing fixed fixed nitrogen low-temperature (low temperature) vessel 6, and in two sides of the bottom
Equipped with deployable and collapsible auxiliary wheel, train runs in low speed or can in emergency circumstances run by auxiliary wheel.
The operating temperature of the fixed nitrogen low-temperature (low temperature) vessel 6 is up to 35K and hereinafter, can improve track type high-temperature superconducting magnet 7
Critical current makes track type high-temperature superconducting magnet 7 play excellent properties to realize highfield.
As shown in figure 3, being vacuum inside the fixed nitrogen low-temperature (low temperature) vessel 6, extraneous radiant heat transfer can be reduced, and be equipped with heat insulation layer
12 and protective shield of radiation 13, external heat can be completely cut off and enter fixed nitrogen chamber, to play the role of thermal insulation protection.
As shown in figure 3, the track type high-temperature superconducting magnet 7 has superconducting switch 10, Closed-loop Constant-current can be formed, is being detached from
It can work independently a few hours in the case where power supply.
Fig. 4 shows fixed nitrogen and produces and replenishment system, and the sensor 11 in the fixed nitrogen low-temperature (low temperature) vessel 6 is low for real-time monitoring
Amount of nitrogen fixation in warm container 6 can transmit a signal to central control system, central control system when amount of nitrogen fixation is lower than rated value
Local station is transmitted a signal to, after train arrival is stopped, fixed nitrogen low-temperature (low temperature) vessel 6 is connect system with ground cryocooler cold head 8
It is cold, producing with after supplement for fixed nitrogen 9 is completed, fixed nitrogen low-temperature (low temperature) vessel 6 and ground cryocooler cold head 8 are detached from, and train continues to run.
Claims (7)
1. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train, which is characterized in that external three-phase alternating-current supply is for propulsion
Two groups of driving coils are separately fixed in the groove of trapezoidal track wall (2) left and right side walls, and two groups of driving coils (1) are along correspondence
Groove center line setting, the 8-shaped Zero flux coil (3) for suspension are fixed in coil cartridge (4), two groups of coil cartridges point
It is not mounted on through bolt in the groove of trapezoidal track wall left and right side walls and continuously arranges along respective slot center line respectively；Two groups
Fixed nitrogen low-temperature (low temperature) vessel (6) is fixed in the left and right side groove of train body (5) respectively through bolt, in each fixed nitrogen low-temperature (low temperature) vessel
It is fixed with track type high-temperature superconducting magnet (7) through bolt, when train high-speed cruising, by 8-shaped Zero flux coil (3) and runway
The magnetic buoyancy side hanging that shape high-temperature superconducting magnet (7) generates is on trapezoidal track wall.
2. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train according to claim 1, which is characterized in that the fixed nitrogen
Low-temperature (low temperature) vessel (6) structure are as follows: it is successively lined with radiation protective layer (13) and heat insulation layer (12) on the internal container casing inner wall for vacuum,
Multiple track type high-temperature superconducting magnets (7) are installed, multiple track type high-temperature superconducting magnet (7) is through superconducting switch in the shell
(10) it is connect by conducting wire with hull outside power supply, which is additionally provided with for producing to complete fixed nitrogen in container casing
With the interface of the cryocooler cold head (8) of supplement.
3. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train according to claim 2, which is characterized in that the train
(5) two side bottom of car body is equipped with the deployable and collapsible auxiliary wheel that train is used in low speed or in emergency circumstances；The trapezoidal track wall
(2) left and right sides bottom is equipped with two column symmetrically for train in low speed or in emergency circumstances by the boss of auxiliary wheel operation.
4. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train according to claim 3, which is characterized in that the fixed nitrogen
The operating temperature of low-temperature (low temperature) vessel is 35K and following.
5. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train according to claim 4, which is characterized in that the runway
Shape high-temperature superconducting magnet (7) has superconducting switch (10), can form Closed-loop Constant-current, can work independently number in the case where being detached from power conditions
Hour.
6. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train described in any claim according to claim 1~5, special
Sign is, sensor (11) are housed in the fixed nitrogen low-temperature (low temperature) vessel (6), for the amount of nitrogen fixation in real-time monitoring low-temperature (low temperature) vessel (6).
7. a kind of fixed nitrogen deep cooling high-temperature superconductor electrodynamics suspension train according to claim 6, which is characterized in that also have solid
The system that nitrogen is produced and supplemented: when sensor (11) detects amount of nitrogen fixation lower than rated value, central control can be transmitted a signal to
System processed, central control system transmit a signal to local station, when train arrival stop after, by fixed nitrogen low-temperature (low temperature) vessel (6) with
Ground cryocooler cold head (8) connection refrigeration completes producing with after supplement for fixed nitrogen (9), and low-temperature (low temperature) vessel (6) and ground refrigeration machine are cold
Head (8) is detached from, and train continues to run.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111284330A (en) * | 2020-02-17 | 2020-06-16 | 上海交通大学 | High-temperature superconducting electric magnetic suspension train |
| CN111525775A (en) * | 2020-04-02 | 2020-08-11 | 中国科学院电工研究所 | High-thrust high-temperature superconducting linear motor |
| CN111525771A (en) * | 2020-04-02 | 2020-08-11 | 中国科学院电工研究所 | High-acceleration high-stability high-temperature superconducting magnetic levitation vehicle system |
| CN111942164A (en) * | 2020-07-30 | 2020-11-17 | 西南交通大学 | Double-conductor plate type permanent magnet electric suspension driving device and driving method |
| CN112072885A (en) * | 2020-08-10 | 2020-12-11 | 中车株洲电力机车研究所有限公司 | Superconducting long stator linear motor and control method thereof |
| CN113199944A (en) * | 2021-06-17 | 2021-08-03 | 西南交通大学 | Force transmission structure of superconducting electric suspension magnet |
| CN113708508A (en) * | 2020-05-21 | 2021-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Non-contact power supply device suitable for full-speed domain operation of maglev train |
| CN113696744A (en) * | 2020-05-21 | 2021-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Vehicle-mounted wireless power transmission device suitable for vacuum pipeline maglev train |
| CN113936882A (en) * | 2020-07-14 | 2022-01-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Cooling system for suspension propulsion integrated coil |
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- 2019-01-24 CN CN201920117285.5U patent/CN209479439U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111284330A (en) * | 2020-02-17 | 2020-06-16 | 上海交通大学 | High-temperature superconducting electric magnetic suspension train |
| CN111525775B (en) * | 2020-04-02 | 2021-08-27 | 中国科学院电工研究所 | High-thrust high-temperature superconducting linear motor |
| CN111525775A (en) * | 2020-04-02 | 2020-08-11 | 中国科学院电工研究所 | High-thrust high-temperature superconducting linear motor |
| CN111525771A (en) * | 2020-04-02 | 2020-08-11 | 中国科学院电工研究所 | High-acceleration high-stability high-temperature superconducting magnetic levitation vehicle system |
| CN111525771B (en) * | 2020-04-02 | 2021-08-27 | 中国科学院电工研究所 | High-acceleration high-stability high-temperature superconducting magnetic levitation vehicle system |
| CN113696744A (en) * | 2020-05-21 | 2021-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Vehicle-mounted wireless power transmission device suitable for vacuum pipeline maglev train |
| CN113708508A (en) * | 2020-05-21 | 2021-11-26 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Non-contact power supply device suitable for full-speed domain operation of maglev train |
| CN113696744B (en) * | 2020-05-21 | 2023-08-15 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Vehicle-mounted wireless power transmission device suitable for vacuum pipeline maglev train |
| CN113936882A (en) * | 2020-07-14 | 2022-01-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Cooling system for suspension propulsion integrated coil |
| CN113936882B (en) * | 2020-07-14 | 2024-03-15 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Cooling system for suspension propulsion integrated coil |
| CN111942164A (en) * | 2020-07-30 | 2020-11-17 | 西南交通大学 | Double-conductor plate type permanent magnet electric suspension driving device and driving method |
| CN112072885A (en) * | 2020-08-10 | 2020-12-11 | 中车株洲电力机车研究所有限公司 | Superconducting long stator linear motor and control method thereof |
| CN112072885B (en) * | 2020-08-10 | 2022-03-22 | 中车株洲电力机车研究所有限公司 | Superconducting long stator linear motor and control method thereof |
| CN113199944A (en) * | 2021-06-17 | 2021-08-03 | 西南交通大学 | Force transmission structure of superconducting electric suspension magnet |
| CN113199944B (en) * | 2021-06-17 | 2022-03-15 | 西南交通大学 | Force transmission structure of superconducting electric suspension magnet |
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