CN102737805A - Cold conducting framework and high-temperature superconducting magnet structural member constituted by same - Google Patents
Cold conducting framework and high-temperature superconducting magnet structural member constituted by same Download PDFInfo
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- CN102737805A CN102737805A CN2012101750720A CN201210175072A CN102737805A CN 102737805 A CN102737805 A CN 102737805A CN 2012101750720 A CN2012101750720 A CN 2012101750720A CN 201210175072 A CN201210175072 A CN 201210175072A CN 102737805 A CN102737805 A CN 102737805A
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Abstract
The invention discloses a cold conducting framework which is characterized in that the framework is made from aluminum nitride, is of a circular ring shape and has a concave-convex cross section; the upper part of the inner edge of the circular-ring-shaped framework is a protrusion with the height being D1, the lower part of the inner edge is a groove with the height being D2, the width of the groove and the width of the protrusion are equal, and the difference between D1 and D2 is equal to the thickness of each cold conducting sheet. For a high-temperature superconducting magnet structural member constituted by the cold conducting framework, a superconducting wire rod is wound on the outer side of the circular-ring-shaped framework in the radial direction, and the upper part and the lower part of the superconducting wire cord are clamped by two cold conducting sheets in the axial direction to constitute the modularized high-temperature superconducting magnet structural member. According to the invention, the defects that the traditional cold conducting structure is large in eddy-current loss, poor in magnet thermal stability and high in temperature rising in the magnet working process are overcome, the cold conducting effect of the cold conducting framework disclosed by the invention is better, and the thermal stability of the magnet and the thermal efficiency of a low-temperature cooling system are increased favorably.
Description
Technical field
The invention belongs to magnet conduction cooling technology, be specifically related to a kind of conduction cooling skeleton and reach by its high-temperature superconducting magnet structural member that constitutes.
Background technology
In the superconducting power application technology, superconducting magnetic energy storage is because of its store electrical energy to high-density, and can be fast to system characteristics such as meritorious, reactive power be provided, and has a extensive future.Large-scale SMES can be used as the load peak regulation, and middle-size and small-size SMES can compensate load change, and blanketing frequency fluctuation and voltage die improve the stability of a system, also can be used as special devices such as energy storage device in the decentralized power s system, emergency power supply.
Traditional superconducting magnet generally is that superconducting magnet is immersed in the cryogenic liquid, adopts liquid helium to do cooling agent and cools off, and the structure of superconducting magnet system is comparatively complicated with operation; The liquid helium price is also expensive; These factors seriously hamper the development of superconducting magnet technology, because the high temperature superconducting materia of finding at present is also not high in the current density of liquid nitrogen temperature, and along with the increase in magnetic field reduces rapidly; And select the conduction type of cooling for use; The temperature of magnet can be controlled at about 20K, and the critical current of high temperature superconducting materia is higher, can make full use of the high critical current characteristic of high temperature superconducting materia.And at this warm area of 20K-40K; It is unpractical soaking cooling, and temperature is too low for liquid nitrogen, and if be immersed in the liquid helium; Though can also further raising be arranged on critical current because of the further reduction of temperature; But thus obtained income is come ratio with the use liquid nitrogen, and is upward also inadvisable with technology and operation economically, and the purpose of researching high-temperature superconductor material avoids the use of the liquid helium cooling system that price is high and operation is inconvenient just.Therefore, to select the conduction type of cooling for use be feasible and practicality to high-temperature superconducting magnet.The inner conduction cooling structure of magnet directly contacts with the superconductor winding, through heat conducting mode, the heat that produces in the magnet running taken away, and the key that effective conduction cooling structure is a conduction cooling high temperature superconducting magnet Refrigeration Technique.
Summary of the invention
In order to overcome the problem that prior art exists, the purpose of this invention is to provide a kind of conduction cooling skeleton and reach by its high-temperature superconducting magnet structural member that constitutes, purpose is to improve the superconducting magnet thermal stability and the low-temperature cooling system heat efficiency.
A kind of conduction cooling skeleton provided by the invention is characterized in that this skeleton is processed by aluminium nitride; For circular, its cross section is a concave-convex, and the interior top along part of annulus skeleton is protruding; The height of bossing is D1, and interior bottom along part is a groove, and the height of groove part is D2; Groove part equates that with the bossing width difference of D1 and D2 equals the thickness of cool guide sheet.
High-temperature superconducting magnet structural member by above-mentioned conduction cooling skeleton constitutes is characterized in that, superconducting wire is wound on annulus skeleton radial outside, and it is upper and lower is clamped the high-temperature superconducting magnet structural member of composition moduleization by two axial cool guide sheets.
The upper and lower stack of a plurality of high-temperature superconducting magnet structural members, bossing and groove part between adjacent two conduction cooling skeletons link closely up and down, constitute high-temperature superconducting magnet.
A kind of conduction cooling skeleton provided by the invention reaches by its high-temperature superconducting magnet structural member that constitutes; Owing to adopt novel conduction cooling structure, overcome traditional conduction cooling structure magnet poor heat stability, the drawback of temperature rise in the magnet course of work; It adopts modular structure; Concavo-convex aluminium nitride (AlN) annulus is as the inner support of superconducting wire, and superconducting wire directly is wound on lenticular aluminium nitride (AlN) the annulus skeleton, and each two cake and skeleton are as a standalone module; The concavo-convex gap that can link closely up and down between the skeleton, compare with traditional skeleton can make after the magnet assembling more reliable and more stable.Simultaneously between skeleton and the skeleton excellent contact is arranged, and skeleton can there be also direct face to contact with cool guide sheet, makes the conduction cooling better effects if to be beneficial to the raising magnet thermal stability and the low-temperature cooling system heat efficiency.
Description of drawings
The structural representation of the high-temperature superconducting magnet structural member that the conduction cooling skeleton that Fig. 1 provides for instance of the present invention constitutes;
Fig. 2 is 1/2 a plumb cut sketch map of high-temperature superconducting magnet structural member among Fig. 1;
Fig. 3 is the a-quadrant schematic cross-section of Fig. 2;
The high-temperature superconducting magnet structural representation of Fig. 4 for constituting by the high-temperature superconducting magnet structural member.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, the high-temperature superconducting magnet structural member that the conduction cooling skeleton that is provided by this instance constitutes comprises cool guide sheet 1, superconducting wire 2 and skeleton 3.
Like Fig. 2, shown in Figure 3, skeleton 3 is processed by aluminium nitride (AlN), for circular; Its cross section is a concave-convex, and the interior top along part of annulus skeleton 3 is protruding, and the height of bossing is D1; Interior bottom along part is a groove; The height of groove part is D2, and groove part equates that with the bossing width difference of D1 and D2 equals the thickness of cool guide sheet 1.
This lenticular aluminium nitride (AlN) annulus skeleton 3 is as the inner support of superconducting wire 2; Leave the concavo-convex gap that to link closely up and down between skeleton and the skeleton; In addition, the space of inserting has also been reserved for cool guide sheet 1 in formed gap, the bossing outside, does making that not only cool guide sheet 1 is fixed like this; Also having increased the contact-making surface of cool guide sheet 1 with aluminium nitride (AlN) annulus skeleton 3, is very favorable for the high-temperature superconducting magnet conduction cooling effect of conduction refrigeration.
In Fig. 3, the height D1 of bossing, the height D2 of groove part, the thickness of cool guide sheet 1 are d, three's correlation does
D
2+d=D
1
Those skilled in the art will readily understand; The above is merely preferred embodiment of the present invention; Not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a conduction cooling skeleton is characterized in that, this skeleton is processed by aluminium nitride; For circular, the skeleton cross section is a concave-convex, and the interior top along part of skeleton is protruding; The height of bossing is D1, and interior bottom along part is a groove, and the height of groove part is D2; Groove part equates that with the bossing width difference of D1 and D2 equals the thickness of cool guide sheet.
2. a high-temperature superconducting magnet structural member that is made up of the said conduction cooling skeleton of claim 1 is characterized in that superconducting wire is wound on the skeleton radial outside, and it is upper and lower is clamped the high-temperature superconducting magnet structural member of composition moduleization by two axial cool guide sheets.
3. the described high-temperature superconducting magnet structural member of claim 2 is characterized in that, the upper and lower stack of a plurality of high-temperature superconducting magnet structural members, and bossing and groove part between adjacent two conduction cooling skeletons link closely up and down, constitute high-temperature superconducting magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101750720A CN102737805A (en) | 2012-05-31 | 2012-05-31 | Cold conducting framework and high-temperature superconducting magnet structural member constituted by same |
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| CN2012101750720A CN102737805A (en) | 2012-05-31 | 2012-05-31 | Cold conducting framework and high-temperature superconducting magnet structural member constituted by same |
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| CN102737805A true CN102737805A (en) | 2012-10-17 |
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| CN2012101750720A Pending CN102737805A (en) | 2012-05-31 | 2012-05-31 | Cold conducting framework and high-temperature superconducting magnet structural member constituted by same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745796A (en) * | 2013-12-28 | 2014-04-23 | 华中科技大学 | Annular high temperature superconducting magnet conduction refrigerating structure |
| CN106059394A (en) * | 2016-05-31 | 2016-10-26 | 西南交通大学 | Method for realizing magnetic suspension state through adoption of closed loop constant current high-temperature superconducting coil |
| CN106449004A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Conduction cooling superconducting magnet based on ReBCo coating superconducting sheet |
| CN111986869A (en) * | 2020-08-20 | 2020-11-24 | 合肥中科离子医学技术装备有限公司 | Superconducting coil framework structure of superconducting proton cyclotron |
| CN114121399A (en) * | 2021-11-25 | 2022-03-01 | 浙江大学 | Superconducting magnet cooling system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075495A (en) * | 2007-04-20 | 2007-11-21 | 中国科学院电工研究所 | Bearing of large cake-shaped high-temperature superconductive magnet |
| CN101577165A (en) * | 2009-03-20 | 2009-11-11 | 中国科学院电工研究所 | Superconducting magnet system of inserted YBCO-Bitter type high-temperature superconducting coil |
-
2012
- 2012-05-31 CN CN2012101750720A patent/CN102737805A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075495A (en) * | 2007-04-20 | 2007-11-21 | 中国科学院电工研究所 | Bearing of large cake-shaped high-temperature superconductive magnet |
| CN101577165A (en) * | 2009-03-20 | 2009-11-11 | 中国科学院电工研究所 | Superconducting magnet system of inserted YBCO-Bitter type high-temperature superconducting coil |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745796A (en) * | 2013-12-28 | 2014-04-23 | 华中科技大学 | Annular high temperature superconducting magnet conduction refrigerating structure |
| CN103745796B (en) * | 2013-12-28 | 2016-01-20 | 华中科技大学 | A kind of annular high-temperature superconducting magnet conduction refrigeration structure |
| CN106059394A (en) * | 2016-05-31 | 2016-10-26 | 西南交通大学 | Method for realizing magnetic suspension state through adoption of closed loop constant current high-temperature superconducting coil |
| CN106059394B (en) * | 2016-05-31 | 2018-07-31 | 西南交通大学 | A method of magnetic suspension state is realized using Closed-loop Constant-current high temperature superconductor coil |
| CN106449004A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Conduction cooling superconducting magnet based on ReBCo coating superconducting sheet |
| CN106449004B (en) * | 2016-08-05 | 2018-07-31 | 华北电力大学 | A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces |
| CN111986869A (en) * | 2020-08-20 | 2020-11-24 | 合肥中科离子医学技术装备有限公司 | Superconducting coil framework structure of superconducting proton cyclotron |
| CN111986869B (en) * | 2020-08-20 | 2022-03-01 | 合肥中科离子医学技术装备有限公司 | Superconducting coil framework structure of superconducting proton cyclotron |
| CN114121399A (en) * | 2021-11-25 | 2022-03-01 | 浙江大学 | Superconducting magnet cooling system |
| CN114121399B (en) * | 2021-11-25 | 2022-09-20 | 浙江大学 | Superconducting magnet cooling system |
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Application publication date: 20121017 |