CN111223612A - Normal temperature superconducting wire - Google Patents
Normal temperature superconducting wire Download PDFInfo
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- CN111223612A CN111223612A CN202010032515.5A CN202010032515A CN111223612A CN 111223612 A CN111223612 A CN 111223612A CN 202010032515 A CN202010032515 A CN 202010032515A CN 111223612 A CN111223612 A CN 111223612A
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- powder
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- temperature superconducting
- superconducting wire
- tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/04—Single wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/14—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by the disposition of thermal insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
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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 invention relates to the technical field of wires and discloses a normal-temperature superconducting wire which comprises an insulating tube and connecting terminals arranged at two ends of the insulating tube, wherein microporous ceramic bodies are filled in the insulating tube, graphene particles are filled in micropores of the microporous ceramic bodies, graphene coatings are arranged on the surfaces of the microporous ceramic bodies, and conductive powder is filled in gaps among the microporous ceramic bodies in the insulating tube. The invention has the advantages of extremely low resistance close to superconductivity, small heat productivity when current passes through the lead and small electric energy loss.
Description
Technical Field
The invention relates to the technical field of wires, in particular to a normal-temperature superconducting wire.
Background
Wire refers to the material used as wire and cable, and also to the industry as wire, for transmitting electricity. The wire generally includes a wire core and an insulating sleeve (also called an outer sheath), the wire core is usually made of copper or aluminum, some special wires are also made of noble metals such as gold and silver, and the insulating sleeve outside the wire core is usually made of PVC material. No matter what kind of conductive metal makes the sinle silk, all can there is resistance, and when the electric current passed through, the resistance of wire all can be partly electric energy conversion heat energy, and the heat energy that resistance generated heat is unfavorable for current transport, leads to the electric energy extravagant on the one hand, and on the other hand still accelerates the insulating cover of sinle silk outside ageing, even fire etc.. In the field of high-voltage power transmission, the resistance of a conductor is increased due to the skin effect, and electric energy is further lost.
Disclosure of Invention
The invention provides a normal-temperature superconducting wire, aiming at solving the problems of heating of current transmission and large electric energy loss caused by wire resistance in the prior art, wherein the normal-temperature superconducting wire has very large conductive surface area, extremely small resistance when current passes through, negligible resistance and approximate superconductivity, and greatly reduces the heating of the wire and the electric energy loss.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a normal atmospheric temperature superconducting wire, includes the insulating tube, establishes the binding post at the insulating tube both ends, the insulating tube intussuseption be filled with the micropore ceramic body, it has graphite alkene granule to fill in the micropore of micropore ceramic body, the surface of micropore ceramic body is equipped with the graphite alkene coating, the clearance intussuseption that is located between the micropore ceramic body in the insulating tube is filled with electrically conductive powder. The graphene particles in the micropores in the microporous ceramic bodies and the graphene coating on the surface can conduct electricity, gaps between adjacent microporous ceramic bodies are filled with conductive powder to ensure stable electric connection, and two ends of each of the gaps are sealed through connecting terminals and connected with an external circuit; the surface area of the electric conduction in the normal-temperature superconducting wire is hundreds of times that of the conventional wire, the resistance is extremely small, and the heat productivity is extremely small and close to superconductivity when the current passes through the wire, so that the electric energy loss is greatly reduced.
Preferably, the microporous ceramic body is spherical or regular polyhedron.
Preferably, the inner wall of the insulating tube is provided with a metal supporting tube, the inner end of the wiring terminal extends into the metal supporting tube and is electrically connected with the conductive powder, the outer side of the inner end of the wiring terminal is provided with an annular limiting groove, the inner wall of the end part of the metal supporting tube is provided with an inner convex ring extending into the annular limiting groove, the outer end of the wiring terminal extends outwards to form a wiring piece, and the wiring piece is provided with a wiring hole. The metal supporting tube plays roles of connection, reinforcement and support, and plays a role of protecting the microporous ceramic body and the nanometer conductive powder in the insulating tube.
Preferably, the inner end of the connecting terminal extends inwards to form a conductive column, and a plurality of annular grooves are formed in the outer side of the conductive column. The conductive column is inserted into the microporous ceramic body and the conductive powder, so that the electric contact area between the microporous ceramic body and the conductive powder is increased, and stable electric connection is ensured.
Preferably, a conductive spiral tube is arranged on the inner wall of the metal support tube, two ends of the conductive spiral tube are electrically connected with the conductive posts, and conductive powder is filled in the conductive spiral tube. The conductive spiral tube and the conductive powder form another conductive circuit which is connected in parallel with a lead circuit formed by the microporous ceramic body, so that the conductive stability is improved, and the resistance is further reduced; meanwhile, when the whole body is bent, the conductive spiral tube can also play a supporting role on the whole body.
Preferably, the connecting terminal is formed by sintering graphene powder and copper powder, wherein the mass percent of the graphene powder is 70-85%, and the mass percent of the copper powder is 15-30%. The graphene content in the wiring terminal is very high, the resistance is extremely low, and the electric conduction is stable.
Preferably, both sides of the wiring piece are provided with conductive support pieces, the bottom surfaces of the inner ends of the conductive support pieces are fixedly connected with the wiring terminals through bolts, the side surfaces of the conductive support pieces are fixedly connected with the wiring piece, and the wire support pieces are provided with avoidance holes coaxial with the wiring holes.
Preferably, an arc-shaped groove is formed in the outer side of the rear end of the conductive supporting sheet, and an outer convex ring extending into the arc-shaped groove is arranged on the inner wall of the end portion of the metal supporting tube.
Preferably, the inner convex ring and the outer convex ring on the metal supporting tube are formed by extrusion, an annular groove is formed at the corresponding position of the outer wall of the metal supporting tube and the inner convex ring and the outer convex ring, and the annular groove is filled with sealant. The end parts of the metal supporting tube and the insulating tube are sealed through sealant, so that external moisture is prevented from entering the surface of the metal supporting tube.
Preferably, the nano conductive powder is a mixed powder of graphene powder and metal powder, wherein the mass percentage of the non-metal graphene powder (graphite powder, coal crystal powder, activated carbon powder) is 60-70%, and the balance is 30-40% of alloy powder: niobium zirconium alloy, niobium titanium alloy, compound: niobium tin superconducting materials and metal powders; the metal powder is any one of indium powder, tantalum powder, aluminum powder, tin powder, lead powder, niobium-zirconium alloy, niobium-titanium alloy and niobium-tin superconducting material.
Preferably, the outer wall of the insulating tube is provided with an ultrasonic transducer. By utilizing the ultrasonic cavitation, the micropore ceramic body and the nanometer conductive powder in the insulating tube are resonated, so that the nanometer conductive powder is not agglomerated, and the conductive surface area in the superconducting wire is kept.
Preferably, the normal temperature superconducting wire bundle is composed of a plurality of normal temperature superconducting wires, a cooling box is arranged outside the normal temperature superconducting wire bundle, cooling liquid is filled in the cooling box, an ultrasonic transducer is fixed on the outer wall of the cooling box, and a cooling circulation system is connected to the cooling box. The normal-temperature superconducting wire bundle is cooled through the cooling box, the cooling liquid and the cooling circulation system, and meanwhile, the cooling liquid transmits ultrasonic vibration to the superconducting wire, so that the nano conductive powder cannot agglomerate, and the size of the conductive surface area in the superconducting wire is kept.
Therefore, the invention has the advantages of extremely low resistance close to superconductivity, small heat productivity when current passes through the lead and small electric energy loss.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic view of the connection between the connection terminal and the conductive support plate.
FIG. 5 is a second structural diagram of the present invention.
FIG. 6 is a third structural diagram of the present invention.
In the figure: the structure comprises an insulating tube 1, a wiring terminal 2, an annular limiting groove 20, a wiring sheet 21, a wiring hole 22, a conductive column 23, an annular groove 24, a metal supporting tube 3, an inner convex ring 30, an outer convex ring 31, an annular groove 32, sealant 33, a microporous ceramic body 4, nanometer conductive powder 5, a conductive supporting sheet 6, an avoiding hole 60, an arc-shaped groove 61, a conductive spiral tube 7, an ultrasonic transducer 8, a cooling box 9, cooling liquid 10 and a cooling circulating system 11.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
example 1: as shown in fig. 1, 2, 3 and 4, a normal temperature superconducting wire comprises an insulating tube 1 and connection terminals 2 disposed at two ends of the insulating tube, wherein a metal support tube 3 is disposed on an inner wall of the insulating tube, a microporous ceramic body 4 is filled in the metal support tube 3, the microporous ceramic body is spherical, graphene particles are filled in micropores of the microporous ceramic body 4, a graphene coating is disposed on a surface of the microporous ceramic body 4, conductive powder 5 is filled in a gap between the microporous ceramic bodies in the metal support tube 3, an inner end of the connection terminal 2 extends into the metal support tube and is electrically connected with the conductive powder, an annular limiting groove 20 is disposed outside an inner end of the connection terminal 2, an inner collar 30 extending into the annular limiting groove is disposed on an inner wall of an end portion of the metal support tube 3, an outer end of the connection terminal 2 extends outward to form a connection piece 21, a connection hole 22 is disposed on the connection piece, an, a plurality of annular grooves 24 are formed in the outer side of the conductive column 23, a conductive spiral tube 7 is arranged on the inner wall of the metal supporting tube 3, two ends of the conductive spiral tube 7 are electrically connected with the conductive column, and conductive powder 5 is filled in the conductive spiral tube; the two sides of the wiring sheet 21 are respectively provided with a conductive support sheet 6, the bottom surface of the inner end of the conductive support sheet 6 is fixedly connected with the wiring terminal through a bolt, the side surface of the conductive support sheet 6 is fixedly connected with the wiring sheet through a rivet, the wire support sheet 6 is provided with an avoidance hole 60 coaxial with the wiring hole, the outer side of the rear end of the conductive support sheet 6 is provided with an arc-shaped groove 61, and the inner wall of the end part of the metal support tube 3 is provided with an outer convex ring 31 extending into the arc-shaped groove; the inner convex ring and the outer convex ring on the metal supporting tube 3 are formed by extrusion, an annular groove 32 is formed at the corresponding position of the outer wall of the metal supporting tube and the inner convex ring and the outer convex ring, and sealant 33 is filled in the annular groove; the connecting terminal 2 is formed by sintering graphene powder and copper powder, wherein the mass percent of the graphene powder is 70%, the mass percent of the copper powder is 30%, the conductive powder 5 is mixed powder of the graphene powder and metal powder, the mass percent of the graphene powder is 60%, and the balance is the metal powder; the metal powder is mixed powder of metal powder, wherein the mass percent of the non-metal graphene powder (graphite powder, coal crystal powder and activated carbon powder) is 60-70%, and the balance is 30-40% of alloy powder: niobium zirconium alloy, niobium titanium alloy, compound: niobium tin superconducting materials and metal powders; the metal powder is any one of indium powder, tantalum powder, aluminum powder, tin powder, lead powder, niobium-zirconium alloy, niobium-titanium alloy and niobium-tin superconducting material.
Example 2: the microporous ceramic body is a regular dodecahedron, and the wiring terminal 2 is formed by sintering graphene powder and copper powder, wherein the mass percent of the graphene powder is 85%, and the mass percent of the copper powder is 15%; the nano conductive powder 5 is mixed powder of graphene powder and metal powder, wherein the mass percent of the graphene powder is 70%, and the balance is the metal powder; the metal powder is copper powder. The rest of the structure in this embodiment is the same as embodiment 1.
Example 3: the microporous ceramic body is a regular icosahedron, and the wiring terminal 2 is formed by sintering graphene powder and copper powder, wherein the mass percent of the graphene powder is 80%, and the mass percent of the copper powder is 20%; the nano conductive powder 5 is mixed powder of graphene powder and metal powder, wherein the mass percentage of the graphene powder is 65%, and the balance is the metal powder; the metal powder is aluminum powder. The rest of the structure in this embodiment is the same as embodiment 1.
The metal powder in the three embodiments can be replaced by metal powder with good conductivity and low cost, such as tin powder, lead powder and the like.
Example 4: as shown in fig. 5, the outer wall of the insulating tube 1 is provided with an ultrasonic transducer 8, and the rest of the structure is the same as that of embodiment 1. By utilizing the ultrasonic cavitation, the micropore ceramic body and the nanometer conductive powder in the insulating tube 1 are resonated, the powder is not agglomerated, and the conductive surface area in the superconducting wire is kept.
Example 5: as shown in fig. 6, a plurality of room temperature superconducting wires form a room temperature superconducting wire bundle, a cooling tank 9 is provided outside the room temperature superconducting wire bundle, a cooling liquid 10 is filled in the cooling tank, an ultrasonic transducer 8 is fixed on the outer wall of the cooling tank, a cooling circulation system 11 is connected to the cooling tank, and the internal structure of each room temperature superconducting wire is the same as that of example 2. The cooling box 9 is connected with cooling circulation system 11, and through the cooling liquid circulation to the super wire bundle of normal atmospheric temperature cool down (although single normal atmospheric temperature super conductive line's calorific capacity can be ignored, heat can be accumulated after a large amount of normal atmospheric temperature super conductive line group lines), the cooling liquid makes the electrically conductive powder of nanometer can not produce the reunion in transmitting to the super conductive line with ultrasonic oscillation, keeps the electrically conductive surface area size in the super conductive line.
The principle of the invention is as follows with reference to the attached drawings: the graphene particles in the micropores in the microporous ceramic bodies and the graphene coating on the surface can conduct electricity, gaps between adjacent microporous ceramic bodies are filled with conductive powder to ensure stable electric connection, and two ends of each of the gaps are sealed through connecting terminals and connected with an external circuit; the surface area of the electric conduction in the normal-temperature superconducting wire is hundreds of times that of the conventional wire, the resistance is extremely small, and the heat productivity is extremely small and close to superconductivity when the current passes through the wire, so that the electric energy loss is greatly reduced.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (10)
1. A normal-temperature superconducting wire is characterized by comprising an insulating tube and connecting terminals arranged at two ends of the insulating tube, wherein a microporous ceramic body is filled in the insulating tube, graphene particles are filled in micropores of the microporous ceramic body, a graphene coating is arranged on the surface of the microporous ceramic body, and nano conductive powder is filled in a gap between the microporous ceramic bodies in the insulating tube; the microporous ceramic body is spherical or regular polyhedron.
2. The normal temperature superconducting wire as claimed in claim 1, wherein the insulating tube has a metal supporting tube on an inner wall thereof, the inner end of the connecting terminal extends into the metal supporting tube and is electrically connected to the conductive powder, an annular limiting groove is formed on an outer side of the inner end of the connecting terminal, an inner collar extending into the annular limiting groove is formed on an inner wall of an end portion of the metal supporting tube, an outer end of the connecting terminal extends outward to form a terminal plate, and a connecting hole is formed in the terminal plate.
3. The normal temperature superconducting wire as claimed in claim 2, wherein the inner end of the connecting terminal extends inward to form a conductive post, and a plurality of annular grooves are formed on the outer side of the conductive post.
4. The normal-temperature superconducting wire as claimed in claim 3, wherein a conductive spiral tube is disposed on the inner wall of the metal supporting tube, two ends of the conductive spiral tube are electrically connected to the conductive posts, and the conductive spiral tube is filled with nano conductive powder.
5. The normal-temperature superconducting wire as claimed in claim 2, wherein the connecting terminal is formed by sintering graphene powder and copper powder, wherein the graphene powder accounts for 70-85% by mass, and the copper powder accounts for 15-30% by mass.
6. The normal temperature superconducting wire according to claim 2, 3 or 4, wherein the lug has conductive support pieces on both sides, the bottom surfaces of the inner ends of the conductive support pieces are fixedly connected with the connection terminal through bolts, the side surfaces of the conductive support pieces are fixedly connected with the lug, and the conductive support pieces are provided with avoidance holes coaxial with the connection holes; the outer side of the rear end of the conductive support sheet is provided with an arc-shaped groove, and the inner wall of the end part of the metal support tube is provided with an outer convex ring extending into the arc-shaped groove.
7. The normal-temperature superconducting wire as claimed in claim 6, wherein the inner convex ring and the outer convex ring on the metal supporting tube are formed by extrusion, an annular groove is formed on the outer wall of the metal supporting tube corresponding to the inner convex ring and the outer convex ring, and the annular groove is filled with sealant.
8. The normal-temperature superconducting wire as claimed in claim 1 or 4, wherein the nano conductive powder is a mixed powder of graphene powder and metal powder, wherein the mass percentage of the non-metallic graphene powder (graphite powder, coal crystal powder, activated carbon powder) is 60-70%, and the balance is 30-40% of alloy powder: niobium zirconium alloy, niobium titanium alloy, compound: niobium tin superconducting materials and metal powders; the metal powder is any one of indium powder, tantalum powder, aluminum powder, tin powder, lead powder, niobium-zirconium alloy, niobium-titanium alloy and niobium-tin superconducting material.
9. The normal temperature superconducting wire as claimed in claim 1, wherein an ultrasonic transducer is mounted on an outer wall of the insulating tube.
10. The normal temperature superconducting wire according to claim 1, wherein the normal temperature superconducting wire is composed of a plurality of normal temperature superconducting wires, a cooling tank is provided outside the normal temperature superconducting wire, a cooling liquid is filled in the cooling tank, an ultrasonic transducer is fixed to an outer wall of the cooling tank, and a cooling circulation system is connected to the cooling tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032515.5A CN111223612A (en) | 2020-01-13 | 2020-01-13 | Normal temperature superconducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032515.5A CN111223612A (en) | 2020-01-13 | 2020-01-13 | Normal temperature superconducting wire |
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| CN111223612A true CN111223612A (en) | 2020-06-02 |
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| CN202010032515.5A Pending CN111223612A (en) | 2020-01-13 | 2020-01-13 | Normal temperature superconducting wire |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592720A (en) * | 2012-03-14 | 2012-07-18 | 于庆文 | Non-metallic cable, manufacturing method and application thereof |
| US20130081678A1 (en) * | 2011-09-30 | 2013-04-04 | Katsuyuki Naito | Conductive material |
| US20160107739A1 (en) * | 2012-04-19 | 2016-04-21 | Cytec Technology Corp. | Composite Materials |
| CN106448799A (en) * | 2016-11-28 | 2017-02-22 | 西北有色金属研究院 | Preparation method for graphene-enhanced copper-niobium multi-core composite wire |
| CN106920597A (en) * | 2017-03-11 | 2017-07-04 | 苏州思创源博电子科技有限公司 | A kind of preparation method of graphene coated niobium aluminium superconducting wire |
| CN107180666A (en) * | 2017-05-19 | 2017-09-19 | 成都新柯力化工科技有限公司 | A kind of graphene conductive powder and preparation method for being exclusively used in lifting cable conductive |
| CN108687342A (en) * | 2018-06-14 | 2018-10-23 | 浙江中平粉末冶金有限公司 | A kind of nano superconductive composite material and preparation method |
| CN108806831A (en) * | 2018-06-11 | 2018-11-13 | 深圳市金环宇电线电缆有限公司 | A kind of conductive coating and graphene conductive layer of cable |
-
2020
- 2020-01-13 CN CN202010032515.5A patent/CN111223612A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130081678A1 (en) * | 2011-09-30 | 2013-04-04 | Katsuyuki Naito | Conductive material |
| CN102592720A (en) * | 2012-03-14 | 2012-07-18 | 于庆文 | Non-metallic cable, manufacturing method and application thereof |
| US20160107739A1 (en) * | 2012-04-19 | 2016-04-21 | Cytec Technology Corp. | Composite Materials |
| CN106448799A (en) * | 2016-11-28 | 2017-02-22 | 西北有色金属研究院 | Preparation method for graphene-enhanced copper-niobium multi-core composite wire |
| CN106920597A (en) * | 2017-03-11 | 2017-07-04 | 苏州思创源博电子科技有限公司 | A kind of preparation method of graphene coated niobium aluminium superconducting wire |
| CN107180666A (en) * | 2017-05-19 | 2017-09-19 | 成都新柯力化工科技有限公司 | A kind of graphene conductive powder and preparation method for being exclusively used in lifting cable conductive |
| CN108806831A (en) * | 2018-06-11 | 2018-11-13 | 深圳市金环宇电线电缆有限公司 | A kind of conductive coating and graphene conductive layer of cable |
| CN108687342A (en) * | 2018-06-14 | 2018-10-23 | 浙江中平粉末冶金有限公司 | A kind of nano superconductive composite material and preparation method |
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