CN212725625U - Special superconducting cable joint - Google Patents
Special superconducting cable joint Download PDFInfo
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- CN212725625U CN212725625U CN202021793842.4U CN202021793842U CN212725625U CN 212725625 U CN212725625 U CN 212725625U CN 202021793842 U CN202021793842 U CN 202021793842U CN 212725625 U CN212725625 U CN 212725625U
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- titanium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
The utility model provides a special superconducting cable joint, which comprises a superconducting cable and a copper block substrate, wherein the superconducting cable comprises a copper-nickel pipe and niobium-titanium superconducting wires, and a plurality of niobium-titanium superconducting wires are wound on the copper-nickel pipe; the copper block base material is used for parallel connection or series connection between the superconducting cables, a liquid helium pipeline through groove and an electric connection through groove are formed in the copper block base material, the copper nickel pipes are connected in the liquid helium pipeline through groove, the niobium-titanium superconducting wires are connected in the electric connection through groove, and tin-silver solder is filled between the liquid helium pipeline through groove and the copper nickel pipes and between the electric connection through groove and the niobium-titanium superconducting wires. The utility model is suitable for a superconducting magnet development under the magnetic field rapid change condition and accomplish the connection between the superconducting cable.
Description
Technical Field
The utility model belongs to the technical field of the cable joint, concretely relates to special superconducting cable connects.
Background
The superconducting cable is a cable made of superconductors, and the superconducting cable is widely applied to the power industry due to the large capacity, low loss, energy conservation and environmental protection. In order to ensure the rapid change of a magnetic field, the conventional superconducting magnet development needs to reduce the inductance of the magnet, increase the running current of the magnet (generally in the order of 10 kA), and simultaneously reduce the eddy current loss of a superconducting cable. And the winding of the common superconducting cable cannot meet the condition. Due to the limitation of the processing length of the superconducting conductor and the requirement of electrical connection among different superconducting magnets, the superconducting joint is inevitable for a large superconducting magnet device and is mainly used for electrical connection among the superconducting conductor, a current lead and different superconducting conductors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a special superconducting cable connects is applicable to the superconducting magnet development under the magnetic field rapid change condition and accomplishes the connection between the superconducting cable.
The utility model provides a following technical scheme:
a special superconducting cable joint comprises a superconducting cable and a copper block base material, wherein the superconducting cable comprises a copper-nickel pipe and niobium-titanium superconducting wires, and a plurality of niobium-titanium superconducting wires are wound on the copper-nickel pipe; the copper block base material is used for parallel connection or series connection between the superconducting cables, a liquid helium pipeline through groove and an electric connection through groove are formed in the copper block base material, the copper nickel pipes are connected in the liquid helium pipeline through groove, the niobium-titanium superconducting wires are connected in the electric connection through groove, and tin-silver solder is filled between the liquid helium pipeline through groove and the copper nickel pipes and between the electric connection through groove and the niobium-titanium superconducting wires.
Preferably, the liquid helium pipeline through groove and the electric connection through groove are provided with copper plates on the upper covers.
Preferably, when the superconducting cables are connected in parallel, the connected copper-nickel pipe is connected to a liquid helium distributor, and the niobium-titanium superconducting wire is electrically connected in the electric connection through groove.
Preferably, when the superconducting cables are connected in parallel, a wire sleeve is sleeved at the joint between the niobium-titanium superconducting wires, and arc-shaped buffering convex blocks are arranged in the outlet and the inlet of the wire sleeve.
Preferably, the wire sleeve and the arc-shaped buffering lug are of an integral structure, and the wire sleeve is an insulating rubber flexible wire sleeve.
Preferably, the single superconducting cable further comprises a fixed insulating layer, and the fixed insulating layer wraps the niobium-titanium superconducting wire wound on the copper-nickel pipe.
The utility model has the advantages that: the utility model discloses a superconducting cable be the superconducting cable of the interior cold type of liquid helium, wrap up in the copper nickel pipe outside by many thin core niobium titanium superconducting wires, inside copper nickel pipe is used for liquid helium to compel the flow cooling superconducting wire material to guarantee that superconducting cable can be in the superconductive attitude, reach 10kA level's operating current, be applicable to the superconducting magnet development under the magnetic field rapid change condition, and accomplish the effective connection between the superconducting cable through the copper billet structure.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a parallel structure of the present invention;
FIG. 2 is a schematic side view of the parallel structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the series structure of the present invention;
FIG. 4 is a schematic side view of the series structure of the present invention;
fig. 5 is a schematic view of the structure of the superconducting cable of the present invention;
fig. 6 is a schematic cross-sectional structure view of the wire sheath of the present invention;
labeled as: 1. a superconducting cable; 11. a copper-nickel pipe; 12. niobium-titanium superconducting wire; 13. fixing the insulating layer; 2. a copper block base material; 21. a liquid helium pipeline through groove; 22. the through groove is electrically connected; 23. a copper plate; 3. a liquid helium dispenser; 4. tin-silver solder; 5. a wire sleeve; 51. the arc buffer lug.
Detailed Description
As shown in fig. 1 to 5, a special superconducting cable joint includes a superconducting cable 1 and a copper block base material 2, the superconducting cable 1 includes a copper-nickel pipe 11 and niobium-titanium superconducting wires 12, and a plurality of niobium-titanium superconducting wires 12 are wound around the copper-nickel pipe 11; copper block substrate 2 is used for connecting superconducting cable 1 between parallelly connected or series connection, is equipped with the logical groove 21 of liquid helium pipeline and connects logical groove 22 with the electricity on copper block substrate 2, connects in the logical groove 21 of liquid helium pipeline between copper nickel pipe 11, connects in the logical groove 22 of electricity connection between niobium titanium superconducting wire 12, and the logical groove 21 of liquid helium pipeline and the logical groove 22 upper cover of electricity connection are equipped with copper 23, strengthen the fixed of connection in copper block substrate 2. Tin-silver solder 4 is filled between the liquid helium pipeline through groove 21 and the copper-nickel pipe 11 and between the electric connection through groove 22 and the niobium-titanium superconducting wire 12. The single superconducting cable 1 further comprises a fixed insulating layer 13, and the fixed insulating layer 13 wraps the niobium-titanium superconducting wire 12 wound on the copper-nickel pipe 11.
Specifically, as shown in fig. 1 and 2, when the superconducting cables 1 are connected in parallel, the connected copper-nickel pipes 11 are connected to the liquid helium distributor 3, and the liquid helium distributor 3 is a cavity structure, and the copper-nickel pipes 11 are respectively inserted into the liquid helium distributor 3 and welded with the copper-nickel pipes 11 into a whole, so that the shunting of the liquid helium pipeline can be realized. The niobium-titanium superconducting wire 12 is electrically connected in the electrical connection through groove 22. As shown in fig. 6, when superconducting cables 1 are connected in parallel, a wire sleeve 5 is sleeved at a connection position between niobium-titanium superconducting wires 12, arc-shaped buffering protrusions 51 are respectively arranged at an outlet and an inlet of the wire sleeve 5, the wire sleeve 5 and the arc-shaped buffering protrusions 51 are integrated, and the wire sleeve 5 is an insulating rubber flexible wire sleeve for protecting the connection position from being broken easily.
As shown in fig. 1-5, a special superconducting cable joint is used for connecting cables and the pipelines of the valve box, and the superconducting cable joint is mainly used for ensuring the electric connection of the cables and the helium pipeline connection of the cables. Oxygen-free copper is required to be processed into the copper block substrate 2 according to the requirements of the figure, and the copper block substrate is used for realizing an integrated structure of superconducting wire electric connection and liquid helium pipeline connection. The superconducting cable 1 is composed of a copper-nickel pipe 11 and a plurality of thin-core niobium-titanium superconducting wires 12. When the niobium-titanium superconducting wire 12 is electrically connected, the niobium-titanium superconducting wire 12 and the copper-nickel tube 11 need to be stripped, superconducting wires inside the niobium-titanium superconducting wire 12 are separated, superconducting core wires of two pipelines are mutually crossed, distributed and combined into a whole at a joint, the superconducting core wires are uniformly arranged in a connecting pipeline of the copper-based block material 2, and a tin-silver solder 4 is adopted for filling and welding into a whole, so that the purpose of electrical connection is realized. Meanwhile, the copper-nickel pipes 11 of the two superconducting cables are butted and arranged in the copper block base material 3 pipeline, the gap between the whole pipeline outer wall and the copper block is filled and welded into a whole, and the connection of the liquid helium pipeline is realized; after the welding of the superconducting core wire and the pipeline is finished, another copper plate 4 with the same size is covered on the surface of the joint and fixed, and the superconducting joint is finished.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A special superconducting cable joint is characterized by comprising a superconducting cable and a copper block base material, wherein the superconducting cable comprises a copper-nickel pipe and niobium-titanium superconducting wires, and a plurality of niobium-titanium superconducting wires are wound on the copper-nickel pipe; the copper block base material is used for parallel connection or series connection between the superconducting cables, a liquid helium pipeline through groove and an electric connection through groove are formed in the copper block base material, the copper nickel pipes are connected in the liquid helium pipeline through groove, the niobium-titanium superconducting wires are connected in the electric connection through groove, and tin-silver solder is filled between the liquid helium pipeline through groove and the copper nickel pipes and between the electric connection through groove and the niobium-titanium superconducting wires.
2. A superconducting cable joint as claimed in claim 1, wherein the liquid helium line channel and the electric connection channel are covered with copper plates.
3. The special superconducting cable joint as claimed in claim 1, wherein when the superconducting cables are connected in parallel, the copper-nickel pipe is connected to a liquid helium distributor, and the niobium-titanium superconducting wire is electrically connected in the electrical connection through groove.
4. The special superconducting cable joint as claimed in claim 1, wherein when the superconducting cables are connected in parallel, the joint between the niobium-titanium superconducting wires is sleeved with a wire sleeve, and arc-shaped buffering protrusions are arranged at the outlet and the inlet of the wire sleeve.
5. A superconducting cable joint according to claim 4, wherein the wire cover is an integral structure with the arc-shaped buffering projection, and the wire cover is an insulating rubber flexible wire cover.
6. The special superconducting cable joint as claimed in claim 1, wherein the single superconducting cable further comprises a fixed insulating layer wrapping the niobium-titanium superconducting wire wound around the cupronickel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021793842.4U CN212725625U (en) | 2020-08-25 | 2020-08-25 | Special superconducting cable joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021793842.4U CN212725625U (en) | 2020-08-25 | 2020-08-25 | Special superconducting cable joint |
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| Publication Number | Publication Date |
|---|---|
| CN212725625U true CN212725625U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021793842.4U Active CN212725625U (en) | 2020-08-25 | 2020-08-25 | Special superconducting cable joint |
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| CN (1) | CN212725625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171254A (en) * | 2021-12-10 | 2022-03-11 | 国网上海市电力公司 | Integrated joint topology suitable for high-temperature superconducting urban power cable |
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2020
- 2020-08-25 CN CN202021793842.4U patent/CN212725625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171254A (en) * | 2021-12-10 | 2022-03-11 | 国网上海市电力公司 | Integrated joint topology suitable for high-temperature superconducting urban power cable |
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