CN1288018C - Superconductive magnetic suspension train system - Google Patents
Superconductive magnetic suspension train system Download PDFInfo
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- CN1288018C CN1288018C CN 01128867 CN01128867A CN1288018C CN 1288018 C CN1288018 C CN 1288018C CN 01128867 CN01128867 CN 01128867 CN 01128867 A CN01128867 A CN 01128867A CN 1288018 C CN1288018 C CN 1288018C
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- magnetic suspension
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- liquid nitrogen
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Abstract
The present invention provides a superconductive magnetic suspension train system which belongs to the field of superconductive electrotechnology. A high-temperature superconductive bogie frame of the suspension system is composed of two parallel permanent magnetism guiding rails and a high-temperature superconductive magnetic suspension device; a high-temperature superconductive magnetic suspension system is composed of two high-temperature superconductive bogie frames; a high-temperature superconductive magnetic suspension device is composed of liquid nitrogen cryogenic vessels, high temperature superconductive blocks, liquid nitrogen and a plurality of accessory devices; the high temperature superconductive blocks are fixed on the bottoms of the liquid nitrogen cryogenic vessels with thin bottoms; a plurality of rectangle liquid nitrogen cryogenic vessels are in parallel arranged on both sides of the bogie frames and are optimally combined with magnetic fields of two permanent magnetism guiding rails; the permanent magnetism guiding rails of a concentrate magnetic field are used for improving magnetic field gradient; permanent magnet bodies in the permanent magnetism guiding rails use neodymium-iron-boron, or ferrite, or electromagnets. High-temperature superconductors are used for exerting flux pinning force on the permanent magnetism guiding rails to realize the horizontal and transverse stability of a train, and the present invention is mainly used for a magnetic suspension train.
Description
Technical field
The present invention relates to the superconduction electrical technology field.
Background technology
The ground traffic tools that magnetic-levitation train is the highest, the safety and comfort of 21 century speed, noise is low, development prospect is fine.The core technology of magnetic-levitation train is a magnetic suspension system.Electromagnetic suspension (EML) formula of Germany is often led (non-superconducting) magnetic-levitation train and is just being built operation line, design speed 500km/h in Shanghai.The advantage of the floating train of this normal magnetic conduction is the static suspension of energy, and shortcoming is hoverheight lower (8mm), and the track planeness is required height, the control system complexity, and power consumption is high; Electrodynamics suspension (EDL) formula low-temperature superconducting magnetic-levitation train speed on the demonstration line of 18.4km of Japan has reached 552km/h.This electrodynamics suspension formula low-temperature superconducting magnetic floating train suspending height higher (100mm), the speed height.Shortcoming is staticly to suspend, and is operated in liquid helium temperature (4.2K), make and the operating cost height, required magnetic field height (5T), magnetic field to passenger's influence difficulty overcome; Also having a kind of high temperature superconducting magnetic suspension system is that superconducting magnet with the high temperature superconductive wire coiling replaces the magnet in the normal magnetic conduction aerotrain, and magnetic field is higher, and hoverheight is higher, but requires and the normal similar complex control system of magnetic conduction aerotrain.
Summary of the invention
The purpose of this invention is to provide a kind of superconductive magnetic suspension train system, it is directly Floating, it can realize static suspension effectively, can reach higher hoverheight again, be that permanent magnetic guideway is made with conventional permanent magnet in ground, realize suspending and guiding with this ground permanent magnetic guideway and high-temperature superconductor bulk direct interaction.
The present invention can be realized by following technical proposal: high-temperature superconductor is a type, utilizes type that the repulsion in magnetic field is realized suspending.The characteristic of high-temperature superconductor lift force is that the low more lift force of hoverheight is big more, and this specific character can alleviate the requirement to hoverheight control greatly, does not perhaps need basically hoverheight is implemented control.The rerum natura of high temperature superconducting materia determines it for the magnetic line of force by wherein pinning effect to be arranged.Utilize this principle, can make the decision magnetic suspension train in the laterally stable guidance force of permanent magnetic guideway from the flux pinning force of high-temperature superconductor to permanent magnetic guideway.Be offset about the invention enables this pining force to be enough to make high-temperature superconducting maglev train not and wave, so, do not need control system.
Employing is operated in the direct floated high temperature superconducting magnetic suspension system of liquid nitrogen temperature (77K), and suspension system is made up of permanent magnetic guideway and high-temperature superconducting magnetic levitation device.Two parallel permanent magnetic guideway are arranged in the suspension system, and its guide rail bracket and pedestal are vertically arranged in pairs along the path.Two groups of high-temperature superconducting magnetic levitation devices are above permanent magnetic guideway, and are rigidly connected into a bogie truck.Be provided with linear motor stator electric between the permanent magnetic guideway, tablet is located at the bottom of magnetic suspension bogie truck and places the stator top.
The floating device of high-temperature superconductor magnetic is made up of oblong liquid nitrogen vessel, high-temperature superconductor bulk, liquid nitrogen and some accessory devices, and it is also compacted that the high-temperature superconductor bulk is placed on the bottom that approaches end liquid nitrogen vessel.Liquid nitrogen vessel is placed in the both sides of magnetic suspension bogie truck.Liquid nitrogen vessel uses zero chromium 18 nickel 9 titaniums as inner bag and shell, to satisfy no magnetic requirement.Between the chassis of inner bag and shell,, realize thermal insulation between liquid nitrogen temperature and the room temperature with this with about 1mm thick thermal insulating material.For keeping the rigidity and the planeness of bottom, whole bottom gross thickness is equal to or less than 3.5mm.Inside and outside courage chassis makes of plastic working, the high 10mm of wall around the chassis.This not at the soldered of inner bag, shell bottommost, can avoid of the influence of the weld seam of magnet conductivity to high temperature superconducting magnetic suspension system.During welding the bottom thermal insulating material is suitably compressed, to guarantee little bottom wall thickness and the path of finding time.Be provided with support between the interlayer of inner bag, shell, sealing part welds with flange, the sealing the same with common liquid nitrogen vessel manufacture craft and finding time.
The lift force of high-temperature superconductor bulk is directly proportional with field gradient, in order to obtain big lift force, improves magnetic field and field gradient with the method that concentrates magnetic field.Utilize the track-type facilities among the present invention, promptly between two conventional permanent magnets, add a ferromagnetic material that magnet conductivity is good, and permanent magnet same polarity one end separately obtains highfield and big field gradient relatively thus.Conventional permanent magnet adopts nd-fe-b or ferrite.When needs, the number of combinations that increases ferromagnetic material and permanent magnet can increase bearing capacity.Big lift force is also realized by high-temperature superconductor bulk optimizing the arrangement of on permanent magnetic guideway.Permanent magnetic guideway also can be realized with electromagnet.
Track-type facilities among the present invention makes does not vertically have field gradient along permanent magnetic guideway, does not produce power, so longitudinal resistance is zero.Driving forwards of magnetic suspension train only needs very little power, realizes advancing with conventional linear electric motors (linear synchronous generator or line inductance electromotor).At the magnetic cage of or partially transparent bright with full impregnated along whole permanent magnetic guideway, prevent any ferromagnetic material eventuality attached on the permanent magnetic guideway, so that produce may destroy to system's operation.The cross sectional dimensions of magnetic cage is greater than the cross sectional dimensions of permanent magnetic guideway and high-temperature superconducting maglev train.This magnetic cage is with non-magnetic conduction or weak permeability magnetic material.The magnetic cage just for prevent any ferromagnetic material eventuality attached on the permanent magnetic guideway, it is not isolation with atmosphere, promptly the ferromagnetic material from any direction all advances not go, but can allow the liquid nitrogen that evaporates in the high-temperature superconducting maglev train system communicate with air environment.Its method is to open a series of downward opening louvers on the magnetic cage top away from permanent magnetic guideway, and these louvers do not have the direct path of ferromagnetic material.The two ends of magnetic cage are installed in a certain distance from permanent magnetic guideway starting point and terminal point (magnetic field is very weak) and locate.Leave passage in the place of establishing the station.
Description of drawings
Fig. 1 is a superconductive magnetic suspension train system front view of the present invention
Fig. 2 is a superconductive magnetic suspension train system lateral plan of the present invention
Fig. 3 is a liquid nitrogen vessel structure front elevation of the present invention
Fig. 4 is a liquid nitrogen vessel structure side view of the present invention
Fig. 5 is the relative position front elevation of liquid nitrogen container of the present invention and permanent magnetic guideway
Fig. 6 is the relative position viewgraph of cross-section of liquid nitrogen container of the present invention and permanent magnetic guideway
Fig. 7 is the relative position viewgraph of cross-section (when load increases) of liquid nitrogen container of the present invention and permanent magnetic guideway
Fig. 8 is a levitated superconducting magnet train magnetic cage section drawing of the present invention
Fig. 9 is a superconductive magnetic suspension train system magnetic cage scheme drawing of the present invention
The specific embodiment
High-temperature superconductor is a type, utilizes type that the repulsion in magnetic field is realized suspending.The characteristic of high-temperature superconductor lift force is that the low more lift force of hoverheight is big more, and this specific character can alleviate the requirement to hoverheight control greatly, does not perhaps need basically hoverheight is implemented control.The rerum natura of high temperature superconducting materia determines it for the magnetic line of force by wherein pinning effect to be arranged.Utilize this principle, can make the decision magnetic suspension train in the laterally stable guidance force of permanent magnetic guideway from the flux pinning force of high-temperature superconductor to permanent magnetic guideway.Be offset about the invention enables this pining force to be enough to make high-temperature superconducting maglev train not and wave, so, do not need control system.
Employing is operated in the direct floated high temperature superconducting magnetic suspension system of liquid nitrogen temperature (77K), and suspension system is formed the high-temperature superconducting magnetic levitation device by permanent magnetic guideway 3 and liquid nitrogen vessel 1.Two parallel permanent magnetic guideway 3 are arranged in the suspension system, and its guide rail bracket 5 and pedestal 6 are vertically arranged in pairs along the path.Two groups of high-temperature superconducting magnetic levitation devices are above permanent magnetic guideway 3, and are rigidly connected into a bogie truck 2.Be provided with linear electric motors 4 stators between the permanent magnetic guideway 3, tablet is located at the bottom of magnetic suspension bogie truck 2 and places the stator top.
The floating device of high-temperature superconductor magnetic is made up of oblong liquid nitrogen vessel 1, high-temperature superconductor bulk 12, liquid nitrogen and some accessory devices, and it is also compacted that high-temperature superconductor bulk 12 is placed on the bottom that approaches end liquid nitrogen vessel 1.Liquid nitrogen vessel 1 is placed in the both sides of magnetic suspension bogie truck 2.Liquid nitrogen vessel 1 usefulness zero chromium 18 nickel 9 titaniums are as inner bag 11 and shell 8, to satisfy no magnetic requirement.Between the chassis of inner bag 11 and shell 8,, realize thermal insulation between liquid nitrogen temperature and the room temperature with this with about 1mm thick thermal insulating material 9.For keeping the rigidity and the planeness of bottom, whole bottom gross thickness is equal to or less than 3.5mm.The chassis of inner bag 11 and shell 8 makes of plastic working, the high 10mm of wall around the chassis.This not at the soldered of inner bag 11, shell 8 bottommosts, can avoid of the influence of the weld seam of magnet conductivity to high temperature superconducting magnetic suspension system.During welding the bottom thermal insulating material is suitably compressed, to guarantee little bottom wall thickness and the path of finding time.Be provided with support 10 between the interlayer of inner bag 11, shell 8, sealing part is with flange 7 welding, and container cover 13 is provided with infusion hole 14, also has a valve 15 that vacuumizes usefulness on a sidewall, the sealing the same with common liquid nitrogen vessel manufacture craft and finding time.
The lift force of high-temperature superconductor bulk 12 is directly proportional with field gradient, in order to obtain big lift force, improves magnetic field and field gradient with the method that concentrates magnetic field.Promptly between two conventional permanent magnets 17, add a ferromagnetic material 18 that magnet conductivity is good, and 17 same polarities of permanent magnet separately, one end is relative, obtains highfield and big field gradient thus.Conventional permanent magnet 17 adopts nd-fe-b or ferrite.When needs, the number of combinations that increases ferromagnetic material and permanent magnet can increase bearing capacity.Big lift force is also realized by high-temperature superconductor bulk 12 optimizing the arrangement of on permanent magnetic guideway 3.Permanent magnetic guideway 3 also can be realized with electromagnet.
Claims (6)
1. superconductive magnetic suspension train system, comprise pedestal, permanent magnetic guideway, magnetic suspension bogie truck, linear electric motors and magnetic cage, pedestal is vertically arranged in pairs along the path, the top is provided with guide rail bracket, the both sides that it is characterized in that guide rail bracket are equipped with permanent magnetic guideway, be provided with the stator of linear electric motors between the permanent magnetic guideway of both sides, tablet is in the bottom of magnetic suspension bogie truck and place above the stator.
2. superconductive magnetic suspension train system according to claim 1 is characterized in that the both sides of magnetic suspension bogie truck are provided with liquid nitrogen vessel.
3. superconductive magnetic suspension train system according to claim 2 is characterized in that described liquid nitrogen vessel is the oblong vacuum heat-insulating container, and the inside and outside bottom of heat-insulation layer is the concave body that integral pressure shapes.
4. superconductive magnetic suspension train system according to claim 3 is characterized in that the bottom of described liquid nitrogen vessel is provided with the high-temperature superconductor bulk.
5. superconductive magnetic suspension train system according to claim 1 it is characterized in that between the permanent magnet of described permanent magnetic guideway ferromagnetic being arranged, and permanent magnet same polarity one end separately is relative.
6. superconductive magnetic suspension train system according to claim 1 is characterized in that described permanent magnetic guideway can be one or two permanent magnetic guideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128867 CN1288018C (en) | 2001-09-18 | 2001-09-18 | Superconductive magnetic suspension train system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128867 CN1288018C (en) | 2001-09-18 | 2001-09-18 | Superconductive magnetic suspension train system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1408593A CN1408593A (en) | 2003-04-09 |
| CN1288018C true CN1288018C (en) | 2006-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01128867 Expired - Fee Related CN1288018C (en) | 2001-09-18 | 2001-09-18 | Superconductive magnetic suspension train system |
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| CN (1) | CN1288018C (en) |
Families Citing this family (28)
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| CN1569511B (en) * | 2004-05-12 | 2010-10-06 | 清华大学 | High-temperature superconductive magnetic levitation device |
| CN1808866B (en) * | 2005-01-21 | 2010-05-26 | 北京前沿科学研究所 | Fully compensated permanent magnetic suspension structure |
| GB2426630B (en) * | 2005-05-26 | 2007-11-21 | Siemens Magnet Technology Ltd | Electromagnet |
| CN100417545C (en) * | 2005-08-25 | 2008-09-10 | 李岭群 | Permanent magnetic suspension bogie technique |
| DE102005050835A1 (en) * | 2005-10-20 | 2007-04-26 | Thyssenkrupp Transrapid Gmbh | Holder for attaching a primary conductor to the track of a maglev train |
| CN101192463B (en) * | 2006-11-29 | 2011-06-22 | 上海磁浮交通工程技术研究中心 | High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train |
| CN100533924C (en) * | 2007-06-26 | 2009-08-26 | 刘吉祥 | Manufacturing technology of linear electric machine traction laminated induction board |
| CN102114790B (en) * | 2009-12-31 | 2012-11-21 | 电子科技大学 | High-temperature superconducting linear suspension propulsion system |
| CN102231614B (en) * | 2011-07-08 | 2013-09-04 | 电子科技大学 | High-temperature superconductive magnetic suspension linear propulsion system with composite ontrack magnetizing function |
| CN102717725A (en) * | 2012-06-25 | 2012-10-10 | 西南交通大学 | High-temperature superconductive magnetic levitation system introduced with ferromagnetic substances |
| CN103023389A (en) * | 2012-12-24 | 2013-04-03 | 哈尔滨工业大学 | Modularization reconfigurable method and device based on superconductive magnetic flux pinning connection |
| CN103129843B (en) * | 2013-03-12 | 2015-01-07 | 北京宇航世纪超导技术有限公司 | Non-magnetic cryogenic container used for high-speed operation of high-temperature superconductivity maglev system and manufacturing method of non-magnetic cryogenic container |
| CN105172803B (en) * | 2015-09-28 | 2017-08-04 | 西南交通大学 | Vacuum pipe high Temperature Superconducting MAGLEV ring test line |
| CN105150875B (en) * | 2015-09-28 | 2017-10-24 | 西南交通大学 | A kind of strong high Temperature Superconducting MAGLEV of curve negotiation ability |
| CN105553336A (en) * | 2015-12-23 | 2016-05-04 | 上海大学 | High temperature superconducting magnetic levitation apparatus |
| CN106740249A (en) * | 2016-12-01 | 2017-05-31 | 西南交通大学 | Magnetic suspension mechanism and magnetic suspension train |
| CN106671823A (en) * | 2017-02-22 | 2017-05-17 | 西南交通大学 | High-temperature superconducting permanent-magnet double-surface levitation transportation system |
| CN107139771A (en) * | 2017-06-02 | 2017-09-08 | 西南交通大学 | Temperature superconductive magnetic levitation device and high-temperature superconducting maglev train |
| CN108454638A (en) * | 2018-02-10 | 2018-08-28 | 张跃 | A kind of vacuum train position adaptive controller |
| CN110304089B (en) * | 2018-03-27 | 2020-08-04 | 中车唐山机车车辆有限公司 | Magnetic suspension bogie and train |
| CN110304093B (en) * | 2018-03-27 | 2020-08-04 | 中车唐山机车车辆有限公司 | Magnetic suspension bogie and train |
| CN110304092B (en) * | 2018-03-27 | 2020-08-04 | 中车唐山机车车辆有限公司 | Magnetic suspension bogie and train |
| CN110341742B (en) * | 2018-04-04 | 2022-02-01 | 中车唐山机车车辆有限公司 | Magnetic suspension bogie and train |
| CN109131369B (en) * | 2018-07-02 | 2023-08-29 | 西南交通大学 | Suspension type high-temperature superconductive magnetic levitation traffic system |
| US11230195B2 (en) * | 2018-08-06 | 2022-01-25 | The Boeing Company | Hybrid electrodynamic levitation system |
| CN111846285B (en) * | 2019-04-24 | 2022-04-12 | 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） | Supersonic transmitting system based on electric and pinning hybrid magnetic suspension |
| CN110091883B (en) * | 2019-05-23 | 2024-01-16 | 西南交通大学 | High-temperature superconductive maglev vehicle body |
| CN114261287B (en) * | 2022-01-13 | 2024-01-26 | 江西理工大学 | Permanent magnet-high temperature superconductive magnetic suspension rail transit system |
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2001
- 2001-09-18 CN CN 01128867 patent/CN1288018C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1408593A (en) | 2003-04-09 |
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