CN203871104U - Superconducting combined winding - Google Patents
Superconducting combined winding Download PDFInfo
- Publication number
- CN203871104U CN203871104U CN201420239386.7U CN201420239386U CN203871104U CN 203871104 U CN203871104 U CN 203871104U CN 201420239386 U CN201420239386 U CN 201420239386U CN 203871104 U CN203871104 U CN 203871104U
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- Prior art keywords
- superconducting coil
- coil
- internal layer
- winding
- superconducting
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- 238000004804 winding Methods 0.000 title claims abstract description 52
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 6
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 229910020073 MgB2 Inorganic materials 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000002887 superconductor Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The utility model discloses a superconducting combined winding formed through winding of a MgB2 wire rod and a YBCO strip. The combined winding includes an inner layer superconducting coil, an inner layer superconducting coil former, an outer layer superconducting coil, an outer layer superconducting coil former, an inner layer coil upper support plate, an inner layer coil lower support plate and an inner layer coil sandwiched copper plate, wherein the inner layer superconducting coil is wound on the inner layer superconducting coil former; the outer layer superconducting coil is wound on the outer layer superconducting coil former; the inner layer coil upper support plate and the inner layer coil lower support plate are mounted at the upper part and the lower part of the inner layer superconducting coil respectively; an inclined groove is formed in a lower plate of the outer layer superconducting coil former. According to the utility model, as MgB2 superconducting material is much cheaper than YBCO superconducting strip, the combined winding formed through the winding of the MgB2 wire rod and the YBCO strip greatly lowers the cost compared with the cost of simple YBCO winding, thereby being applicable to superconducting magnets with the magnetic field intensity of 3-5 T.
Description
Technical field
The utility model relates to a kind of superconducting magnet built-up coil, particularly a kind of employing MgB
2the superconduction combination winding of wire rod and the coiling of YBCO band.
Background technology
Adopt variety classes superconductor coiling superconduction combination winding to be widely used in high-intensity magnetic field cryogenic magnet field.Magnetic field distributes and reduces gradually to external diameter center from internal diameter center in superconducting magnet.Superconduction combination winding mainly adopts two kinds of designs, and the one, in superconducting magnet, near inner-diameter portion whose, adopt the higher superconductor of critical magnetic field, magnet is near the outside lower superconductor of critical magnetic field, the commonly Nb of adopting
3the combination winding of Sn and NbTi; Another kind is near inner-diameter portion whose, to adopt the larger superconducting wire of sectional area in superconducting magnet, and magnet is near the outside less superconducting wire of sectional area that adopts, and winding is combined in commonly NbTi layering.The object of superconduction combination winding is that the current capacity by maximum using superconductor reduces magnet cost.For general superconducting magnet, winding radial thickness is crossed conference and is caused integral cooling effect to decline and cumulative stress increase, affects the stability of magnet operation, also increases coiling difficulty simultaneously.Adopt the nested mode of combination winding, internal layer and outer winding are assembled after coiling respectively, the simpler magnet stability that also increased of technique simultaneously.
YBCO belt material of high temperature superconduct and MgB
2superconducting wire can be applied on the liquid helium warm area of 4.2K, is suitable for operation temperature area at the refrigeration machine conduction cooling superconducting magnet of 10-25K.Utilize MgB
2superconducting wire and YBCO belt material of high temperature superconduct can coiling the superconduction combination winding that is applied to refrigeration machine refrigeration.Current YBCO superconducting tape has been realized industrialization, obtains certain application in many practical engineering project, and business YBCO superconducting tape adopts vacuum deposition method preparation, and cost is high, and can only be processed into band specification.Adopt powder-in-tube technique to prepare MgB
2new superconduction material, low price, wire is easy to be processed into various shape specification.Current MgB
2new superconduction material mainly contains wire rod and two kinds of shape specification of band.Band is applicable to coiling disc coil, and wire rod is applicable to coiling cylindrical layer winding.MgB
2the critical current density of superconducting wire is higher than MgB
2superconducting tape, so adopt MgB
2the winding volume of superconducting wire coiling is less.
Utility model content
In order effectively reducing, to adopt the superconduction winding cost of single Y BCO conductor and the stability of enhancing magnet, to the utility model proposes a kind of MgB
2the combination winding of superconducting wire and the coiling of YBCO superconducting tape.Combination winding internal magnetic field is higher, adopts the coiling of YBCO superconducting tape; External magnetic field is lower, adopts MgB
2superconducting wire.MgB
2new superconduction material product mainly contains wire rod and two kinds of shape specification of band, MgB
2the critical current density of superconducting wire is higher than MgB
2superconducting tape, adopts MgB
2the combination winding of superconducting wire and the coiling of YBCO belt material of high temperature superconduct can increase MgB
2the accounting of superconductor, further reduces superconducting magnet cost and volume.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme: a kind of superconduction combination winding, comprises internal layer superconducting coil, internal layer superconducting coil skeleton, outer superconducting coil, outer superconducting coil skeleton, inner coil upper backup pad, inner coil lower supporting plate and inner coil interlayer conduction cooling plate; Internal layer superconducting coil is wound on internal layer superconducting coil skeleton; Outer superconducting coil is wound on outer superconducting coil skeleton, inner coil upper backup pad and inner coil lower supporting plate are contained in respectively internal layer superconducting coil upper and lower, it is characterized in that: described internal layer superconducting coil is YBCO band coil, and described outer superconducting coil is MgB
2wire rod coil, internal layer superconducting coil and outer superconducting coil are wound on respectively separately on skeleton, in described outer superconducting coil skeleton lower plate, there is a skewed slot, the corresponding internal layer superconducting coil of described skewed slot bottom YBCO band extraction location, internal layer superconducting coil is connected with outer superconducting coil by above-mentioned skewed slot.In said structure basis, described skewed slot width is 1 ~ 20 millimeter, can make YBCO band pass through, groove to MgB
2between superconducting coil skeleton internal diameter tangent line, angle is acute angle, and identical with YBCO band direction of winding, makes YBCO band try one's best level and smooth cabling to MgB
2superconducting coil skeleton.
In said structure basis, described skewed slot width is 1 ~ 20 millimeter, groove to and outside superconducting coil skeleton internal diameter tangent line between angle be acute angle, and identical with YBCO band direction of winding, make YBCO band try one's best level and smooth cabling to outer superconducting coil skeleton.
Further, described internal layer superconducting coil is shaped as circle or racetrack-type rotor coil, and winding structure is cake formula structure or core structure.
On said structure basis, further, outer superconducting coil is shaped as circle or racetrack-type rotor coil, and outer superconducting coil winding structure is the core structure of circle wire rod or square wire rod coiling.
When described internal layer superconducting coil adopts cake formula structure, between internal layer superconducting coil, adopt series system, the coaxial closed assembly of each internal layer superconducting coil skeleton.
Further, YBCO band and MgB
2wire rod can adopt and be welded to connect.
Described combination winding adopts refrigeration machine to conduct cooling, the cooling or cold helium gas cooling of liquid helium immersion, and working temperature is below 20K.
First the utility model is wound on YBCO superconducting coil on YBCO superconducting coil skeleton, and YBCO superconducting coil can adopt cake formula or core structure.Then by MgB
2it is outer that superconducting coil skeleton is enclosed within YBCO superconducting coil, and fix by the upper and lower supporting bracket of coil, simultaneously at MgB
2superconducting coil skeleton is opened a tiny skewed slot and is convenient to YBCO superconducting coil cabling, then by YBCO superconducting tape and MgB
2superconducting wire welds and continues coiling MgB
2superconducting coil.MgB
2superconducting coil is taked core structure coiling.In combination winding, each disc coil adopts series system unification by a current source supply.MgB
2the ratio of superconducting coil and YBCO superconducting coil is determined by Distribution of Magnetic Field, for choosing of operating current design, must be less than MgB simultaneously
2with the critical current of YBCO superconducting coil under each self-magnetic field.Take working temperature 20K as example, when external magnetic field is 2T, MgB
2superconducting wire critical current density and the YBCO critical current density under perpendicualr field is basic identical, so generally choose 2T, is line of demarcation, the combination winding that is 5T for central field, MgB
2coil accounting should be no more than 40%.Final ratio also needs to consider in detail according to the design of magnet.
The utility model beneficial effect is compared with prior art: 1, with respect to adopting Nb
3sn and NbTi low-temperature superconducting combination winding, adopt MgB
2combination winding with YBCO, can be applied in higher cryogenic temperature, reduces refrigeration cost, increases the stability of superconduction winding operation, meanwhile, can effectively reduce the superconduction winding cost that adopts single Y BCO.
2, combination winding ectomesoderm superconducting coil and internal layer superconducting coil are wound on respectively on skeleton separately, compare single skeleton, and outer superconducting coil skeleton plays the effect of location and conduction cooling, make superconduction combination coiling operation more stable.
3, MgB
2the critical current density of superconducting wire is higher than MgB
2superconducting tape, so adopt MgB
2the winding volume of superconducting wire coiling is less, and wire rod is more suitable for coiling drum type coil, outside MgB simultaneously
2superconducting coil adopts cartridge type coiling.
4, according to material shape characteristic, band is more suitable for the coiling of cake formula, more easily changes and damages or degeneration part, so YBCO internal layer superconducting coil can further adopt the series connection of cake formula structure.
5, on outer superconducting coil skeleton, the situation that a skewed slot can effectively avoid YBCO superconducting tape too to be bent is opened in relevant position, is convenient to the connection between internal layer superconducting coil and outer superconducting coil.
Accompanying drawing explanation
Fig. 1 is that the utility model partly cuts open schematic cross-section.
Wherein, Reference numeral is: 1 is internal layer superconducting coil, and 2 is internal layer superconducting coil skeleton, and 3 is outer superconducting coil, and 4 is outer superconducting coil skeleton, and 5 is inner coil upper backup pad, and 6 is inner coil lower supporting plate, and 7 is inner coil interlayer conduction cooling plate.
Fig. 2 is the outer superconducting coil skeleton of the utility model schematic diagram.
Wherein, Reference numeral is: 4 is outer superconducting coil skeleton, and 8 is skewed slot.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
As shown in Figure 1, combination winding is by internal layer superconducting coil 1, internal layer superconducting coil skeleton 2, outer superconducting coil 3, outer superconducting coil skeleton 4,, inner coil upper backup pad 5 and inner coil lower supporting plate 6 form.Internal layer superconducting coil 1 is wound on internal layer superconducting coil skeleton 2, and internal layer superconducting coil 1 is taked the coiling of cake formula structure, and stacked combination, inserts coil interlayer conduction cooling plate 7 between every layer, and coil connects the upper series connection that adopts.After the coiling of internal layer superconducting coil completes, be contained on lower supporting plate 6, and in its outer cover outer superconducting coil skeleton 4.In outer superconducting coil skeleton 4 lower plates, open a skewed slot, the corresponding internal layer superconducting coil of described skewed slot 1 bottom YBCO band extraction location, skewed slot width is 1 ~ 20mm, groove makes YBCO band try one's best smooth excessiveness to outer superconducting coil skeleton 4 to the direction of winding of postponing, YBCO superconducting tape is connected with outer superconducting wire by skewed slot, and then outer superconducting coil 3 adopts core structure to be wound on outer superconducting coil skeleton 4.
Fig. 2 is outer superconducting coil skeleton schematic diagram.As shown in Figure 2, skewed slot 8 is opened in outer superconducting coil skeleton 4 lower plates, and width is 1 ~ 20mm, groove to and outer superconducting coil skeleton internal diameter tangent line between angle be acute angle, and identical with YBCO band direction of winding, make YBCO band try one's best level and smooth cabling to outer superconducting coil skeleton.
Description for the understanding of embodiment is only to understand the utility model for helping, rather than is used for limiting of the present utility model.Those skilled in the art all can utilize thought of the present utility model to carry out some changes and variation, as long as its technological means does not depart from thought of the present utility model and main points, still within protection range of the present utility model.
Claims (7)
1. a superconduction combination winding, is characterized in that: comprise internal layer superconducting coil (1), internal layer superconducting coil skeleton (2), outer superconducting coil (3), outer superconducting coil skeleton (4), inner coil upper backup pad (5), inner coil lower supporting plate (6) and inner coil interlayer conduction cooling plate (7); Internal layer superconducting coil (1) is wound on internal layer superconducting coil skeleton (2); Outer superconducting coil (3) is wound on outer superconducting coil skeleton (4), inner coil upper backup pad (5) and inner coil lower supporting plate (6) are contained in respectively internal layer superconducting coil (1) upper and lower, it is characterized in that: described internal layer superconducting coil (1) is YBCO band coil, and described outer superconducting coil (3) is MgB
2wire rod coil, internal layer superconducting coil (1) and outer superconducting coil (3) are wound on respectively separately on skeleton, in described outer superconducting coil skeleton (4) lower plate, there is a skewed slot, corresponding internal layer superconducting coil (1) bottom YBCO of described skewed slot band extraction location, internal layer superconducting coil (1) is connected with outer superconducting coil (3) by above-mentioned skewed slot.
2. winding is combined in a kind of superconduction as claimed in claim 1, it is characterized in that: described skewed slot width is 1 ~ 20 millimeter, groove to and outside superconducting coil skeleton internal diameter tangent line between angle be acute angle, and identical with YBCO band direction of winding, make YBCO band try one's best level and smooth cabling to outer superconducting coil skeleton (4).
3. a kind of superconduction combination winding as claimed in claim 1 or 2, is characterized in that: internal layer superconducting coil (1) is shaped as circle or racetrack-type rotor coil, and winding structure is cake formula structure or core structure.
4. a kind of superconduction combination winding as claimed in claim 1 or 2, is characterized in that: outer superconducting coil (3) is shaped as circle or racetrack-type rotor coil, and outer superconducting coil (3) winding structure is the core structure of circle wire rod or square wire rod coiling.
5. a kind of superconduction combination winding as claimed in claim 3, is characterized in that: when internal layer superconducting coil (1) adopts cake formula structure, internal layer superconducting coil adopts series system between (1) the coaxial closed assembly of each internal layer superconducting coil skeleton (2).
6. a kind of superconduction combination winding as described in claim 1 or 2 or 5, is characterized in that: YBCO band and MgB
2wire rod adopts and is welded to connect.
7. a kind of superconduction combination winding as claimed in claim 6, is characterized in that: described combination winding adopts refrigeration machine to conduct cooling, the cooling or cold helium gas cooling of liquid helium immersion, and working temperature is below 20K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239386.7U CN203871104U (en) | 2014-05-12 | 2014-05-12 | Superconducting combined winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239386.7U CN203871104U (en) | 2014-05-12 | 2014-05-12 | Superconducting combined winding |
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| Publication Number | Publication Date |
|---|---|
| CN203871104U true CN203871104U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239386.7U Expired - Lifetime CN203871104U (en) | 2014-05-12 | 2014-05-12 | Superconducting combined winding |
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| Country | Link |
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| CN (1) | CN203871104U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943301A (en) * | 2014-05-12 | 2014-07-23 | 中国东方电气集团有限公司 | Superconducting composite winding |
| CN107369520A (en) * | 2017-09-13 | 2017-11-21 | 云南电网有限责任公司电力科学研究院 | A kind of new type high temperature superconduction winding |
| CN109841370A (en) * | 2019-04-09 | 2019-06-04 | 苏州八匹马超导科技有限公司 | A kind of cooling magnet structure of conduction and its manufacturing method |
| CN110957130A (en) * | 2019-12-09 | 2020-04-03 | 广东电网有限责任公司 | Winding method of superconducting coil and superconducting magnet |
| CN113690010A (en) * | 2021-08-25 | 2021-11-23 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting energy storage magnet with novel mixed structure |
-
2014
- 2014-05-12 CN CN201420239386.7U patent/CN203871104U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943301A (en) * | 2014-05-12 | 2014-07-23 | 中国东方电气集团有限公司 | Superconducting composite winding |
| CN107369520A (en) * | 2017-09-13 | 2017-11-21 | 云南电网有限责任公司电力科学研究院 | A kind of new type high temperature superconduction winding |
| CN109841370A (en) * | 2019-04-09 | 2019-06-04 | 苏州八匹马超导科技有限公司 | A kind of cooling magnet structure of conduction and its manufacturing method |
| CN109841370B (en) * | 2019-04-09 | 2024-07-09 | 苏州八匹马超导科技有限公司 | Conductive cooling magnet structure and manufacturing method thereof |
| CN110957130A (en) * | 2019-12-09 | 2020-04-03 | 广东电网有限责任公司 | Winding method of superconducting coil and superconducting magnet |
| CN110957130B (en) * | 2019-12-09 | 2021-08-27 | 广东电网有限责任公司 | Winding method of superconducting coil and superconducting magnet |
| CN113690010A (en) * | 2021-08-25 | 2021-11-23 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting energy storage magnet with novel mixed structure |
| CN113690010B (en) * | 2021-08-25 | 2024-06-07 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting energy storage magnet with mixed structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: DONGFANG ELECTRIC Co.,Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: DONGFANG ELECTRIC Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |