CN109215931A - A kind of low-temperature superconducting segment structure for myriampere degree current feed - Google Patents
A kind of low-temperature superconducting segment structure for myriampere degree current feed Download PDFInfo
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- CN109215931A CN109215931A CN201811097422.XA CN201811097422A CN109215931A CN 109215931 A CN109215931 A CN 109215931A CN 201811097422 A CN201811097422 A CN 201811097422A CN 109215931 A CN109215931 A CN 109215931A
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- stainless steel
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- liquid helium
- temperature
- current divider
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a kind of low-temperature superconducting segment structures for myriampere degree current feed, include liquid helium pipeline, anaerobic copper sleeve, low-temperature superconducting line, high-temperature superconductor is folded, stainless steel current divider partition, stainless steel current divider.The design of anaerobic copper sleeve top and bottom has plane bridging arrangement, convenient for completing to overlap with other connectors, left end is brazed two liquid helium pipelines, liquid helium channel is machined with inside it, right end soldering has stainless steel current divider, the interior welds of stainless steel current divider have stainless steel current divider partition, with one piece of liquid helium channel composition low-temperature circuit, the surface soldering high-temperature superconductor of stainless steel current divider is folded, it installs and is soldered to high-temperature superconductor and fold in the slot of lower layer in low-temperature superconducting line one end, the other end is soldered in two side channels of anaerobic copper sleeve, and stainless steel current divider surface needs silver-plated.
Description
Technical field
The present invention relates to the field of cryogenic magnet, specially a kind of low-temperature superconducting section for myriampere degree current feed
Structure.
Background technique
Large-scale low-temperature superconducting magnet operating point temperature, in order to transmit electric current to magnet, needs generally near liquid helium temperature
Component of one section of connection room temperature terminal to cryogenic magnetic system, i.e., so-called current feed.Current feed is divided by structure composition
Conventional current lead (or unitary current feed or current in resistance property lead) and high-temperature superconductive lead wire (or binary current draws
Line or combined type current feed) two types.Conventional current lead mainly uses copper or copper alloy to form, technology development
It reaches its maturity, maximum current record is the 100 kA electricity that the Fermi laboratory of the U.S. in 2005 is the research and development of transmission line superconducting magnet at present
Flow lead.
High temperature superconducting materia BSCCO or YBCO have lower thermal conductivity, and YBCO is close with stainless steel hot conductance, and
The thermal conductivity of BSCCO is far below stainless steel, under liquid nitrogen temperature, can unimpededly carry high current, after discovery after several years just by
Researcher is applied in current feed design.As its name suggests, high-temperature superconductor is known as using the current feed of high temperature superconductor technology
Current feed.It is most of that it generally comprises four: 1) heat exchanger section, and similar conventional current lead designs warm area generally in liquid nitrogen temperature
Near degree；2) high-temperature superconducting segment, often work is below liquid nitrogen temperature；3) indoor temperature end works near room temperature 300K；4) low temperature is super
Section is led, often work is near liquid helium temperature, and wherein low-temperature superconducting section assumes responsibility for connection high-temperature superconducting segment to low-temperature superconducting line, low temperature
For superconducting line to the critical function of anaerobic copper sleeve, design quality is directly related to the thermic load of cryogenic system, be one very
Crucial technology.
Summary of the invention
The object of the present invention is to provide a kind of low-temperature superconducting segment structures for myriampere degree current feed, realize connection high temperature
Superconducting section is to low-temperature superconducting line, critical function of the low-temperature superconducting line to anaerobic copper sleeve.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: include that superconducting joint and low temperature are super
Conducting wire is equipped with liquid helium in superconducting joint and enters channel and liquid helium flow pass, the soldering of superconducting joint left end have respectively with liquid helium into
Enter channel and enters pipe and liquid helium outlet pipe with the corresponding liquid helium being connected to of liquid helium flow pass；Superconducting joint right end fixing sleeve is equipped with stainless steel
Current divider, the oral area of stainless steel current divider are equipped with stainless steel current divider partition, are located at stainless steel steel in stainless steel current divider and shunt
It is formed between device partition and superconducting joint and enters pipe with liquid helium and cushion chamber that liquid helium outlet pipe is connected to, liquid helium enters channel, liquid helium
Liquid helium low-temperature circuit is formed between flow pass and cushion chamber；If there is vacuum soldering on the annular outer wall of the stainless steel current divider
The dry high-temperature superconductor being spaced apart is folded；Low-temperature superconducting line one end is soldered in two side channels of superconducting joint, and the other end is soldered to pair
High-temperature superconductor is answered to fold in the slot of lower layer.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: the superconducting joint
For anaerobic copper sleeve.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: the superconducting joint
Above and below is plane bridging arrangement.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: superconducting joint right end
It is integrated between stainless steel current divider by the fixed suit of soldering.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: stainless steel current divider
Surface is silver coated.
The invention has the advantages that
This invention ensures that high-temperature superconducting segment smoothly transitting to low-temperature superconducting section, first is that the smooth connection in terms of mechanical structure,
There is enough mechanical strengths simultaneously, second is that realize high-temperature superconductor band to seamless connection electric between low-temperature superconducting band,
It ensure that the superconductivity of changeover portion；The low-temperature superconducting section resistance value is smaller, and current divider material is stainless steel material, and leakage heat is smaller,
Overall structure is smaller to cryogenic system thermic load, and manufacturing cost is lower, easy for installation, commercial value with higher.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is structure of the invention diagrammatic cross-section.
Fig. 3 is structure of the invention 3-D view.
Wherein, figure label: 1- helium tube, 2- superconducting joint, 3- low-temperature superconducting line, 4- high-temperature superconductor is folded, and 5- helium is cold
Pipeline, 6- current divider partition, 7- current divider.
Specific embodiment
As shown in the figure.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, includes superconducting joint 2 and low-temperature superconducting line 3,
It is equipped with liquid helium in superconducting joint 2 and enters channel and liquid helium flow pass 5, the soldering of superconducting joint left end, which has to enter with liquid helium respectively, leads to
Road enters pipe and liquid helium outlet pipe 1 with the corresponding liquid helium being connected to of liquid helium flow pass；Superconducting joint right end fixing sleeve is equipped with stainless steel point
Device 7 is flowed, the oral area of stainless steel current divider 7 is equipped with stainless steel current divider partition 6, is located at stainless steel steel in stainless steel current divider and shunts
It is formed between device partition 6 and superconducting joint 2 and enters pipe with liquid helium and cushion chamber 8 that liquid helium outlet pipe is connected to, liquid helium enters channel, liquid
Liquid helium low-temperature circuit is formed between helium flow pass and cushion chamber 8；Vacuum soldering on the annular outer wall of the stainless steel current divider
There are several high-temperature superconductors being spaced apart folded 4；3 one end of low-temperature superconducting line is soldered in two side channels of superconducting joint, other end tin
Corresponding high-temperature superconductor is welded in fold in the slot of 4 lower layers.
The superconducting joint is anaerobic copper sleeve.
The superconducting joint above and below is plane bridging arrangement.
A kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: superconducting joint right end
It is integrated between stainless steel current divider by the fixed suit of soldering.
Stainless steel current divider surface is silver coated.
Claims (5)
1. a kind of low-temperature superconducting segment structure for myriampere degree current feed, it is characterised in that: include superconducting joint and low temperature
Superconducting line is equipped with liquid helium in superconducting joint and enters channel and liquid helium flow pass, the soldering of superconducting joint left end have respectively with liquid helium
Enter pipe and liquid helium outlet pipe with the corresponding liquid helium being connected to of liquid helium flow pass into channel；Superconducting joint right end fixing sleeve is equipped with stainless
Steel current divider, the oral area of stainless steel current divider are equipped with stainless steel current divider partition, are located at stainless steel steel point in stainless steel current divider
It is formed between stream device partition and superconducting joint and enters pipe with liquid helium and cushion chamber that liquid helium outlet pipe is connected to, liquid helium enters channel, liquid
Liquid helium low-temperature circuit is formed between helium flow pass and cushion chamber；There is vacuum soldering on the annular outer wall of the stainless steel current divider
Several high-temperature superconductors being spaced apart are folded；Low-temperature superconducting line one end is soldered in two side channels of superconducting joint, and the other end is soldered to
Corresponding high-temperature superconductor is folded in the slot of lower layer.
2. a kind of low-temperature superconducting segment structure for myriampere degree current feed according to claim 1, it is characterised in that: institute
Stating superconducting joint is anaerobic copper sleeve.
3. a kind of low-temperature superconducting segment structure for myriampere degree current feed according to claim 1, it is characterised in that: institute
Stating superconducting joint above and below is plane bridging arrangement.
4. a kind of low-temperature superconducting segment structure for myriampere degree current feed according to claim 1, it is characterised in that: super
It is integrated between docking head right end and stainless steel current divider by the fixed suit of soldering.
5. a kind of low-temperature superconducting segment structure for myriampere degree current feed according to claim 1, it is characterised in that: no
Rust steel current divider surface is silver coated.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097422.XA CN109215931B (en) | 2018-09-19 | 2018-09-19 | Low-temperature superconducting segment structure for ten-thousand-ampere-level current lead |
| PCT/CN2019/105273 WO2020057405A1 (en) | 2018-09-19 | 2019-09-11 | Low-temperature superconducting segment structure for 10 milliampere current lead |
| JP2020560462A JP2021515413A (en) | 2018-09-19 | 2019-09-11 | Structure of low temperature superconducting part for tens of thousands of levels of current leads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097422.XA CN109215931B (en) | 2018-09-19 | 2018-09-19 | Low-temperature superconducting segment structure for ten-thousand-ampere-level current lead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215931A true CN109215931A (en) | 2019-01-15 |
| CN109215931B CN109215931B (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811097422.XA Active CN109215931B (en) | 2018-09-19 | 2018-09-19 | Low-temperature superconducting segment structure for ten-thousand-ampere-level current lead |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2021515413A (en) |
| CN (1) | CN109215931B (en) |
| WO (1) | WO2020057405A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057405A1 (en) * | 2018-09-19 | 2020-03-26 | 中国科学院合肥物质科学研究院 | Low-temperature superconducting segment structure for 10 milliampere current lead |
| CN111540560A (en) * | 2020-05-22 | 2020-08-14 | 中国科学院合肥物质科学研究院 | Ten thousand ampere grade YBCO high-temperature superconducting current lead device and manufacturing method thereof |
| CN114068134A (en) * | 2021-10-15 | 2022-02-18 | 江苏美时医疗技术有限公司 | Ultrahigh-field liquid-helium-free magnet high-temperature superconducting excitation electrode and magnet |
| CN114496461A (en) * | 2022-04-15 | 2022-05-13 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649114B (en) * | 2022-04-07 | 2023-09-08 | 中国科学院合肥物质科学研究院 | Direct-cooling high-temperature superconductive current lead structure of refrigerator |
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| CN109215931B (en) * | 2018-09-19 | 2019-12-17 | 中国科学院合肥物质科学研究院 | Low-temperature superconducting segment structure for ten-thousand-ampere-level current lead |
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2018
- 2018-09-19 CN CN201811097422.XA patent/CN109215931B/en active Active
-
2019
- 2019-09-11 WO PCT/CN2019/105273 patent/WO2020057405A1/en active Application Filing
- 2019-09-11 JP JP2020560462A patent/JP2021515413A/en active Pending
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057405A1 (en) * | 2018-09-19 | 2020-03-26 | 中国科学院合肥物质科学研究院 | Low-temperature superconducting segment structure for 10 milliampere current lead |
| CN111540560A (en) * | 2020-05-22 | 2020-08-14 | 中国科学院合肥物质科学研究院 | Ten thousand ampere grade YBCO high-temperature superconducting current lead device and manufacturing method thereof |
| CN114068134A (en) * | 2021-10-15 | 2022-02-18 | 江苏美时医疗技术有限公司 | Ultrahigh-field liquid-helium-free magnet high-temperature superconducting excitation electrode and magnet |
| CN114068134B (en) * | 2021-10-15 | 2023-02-07 | 江苏美时医疗技术有限公司 | Ultrahigh-field liquid-helium-free magnet high-temperature superconducting excitation electrode and magnet |
| CN114496461A (en) * | 2022-04-15 | 2022-05-13 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
| CN114496461B (en) * | 2022-04-15 | 2022-07-05 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215931B (en) | 2019-12-17 |
| WO2020057405A1 (en) | 2020-03-26 |
| JP2021515413A (en) | 2021-06-17 |
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