WO2014048276A1 - Fil conducteur à base d'un nanomatériau au graphène - Google Patents

Fil conducteur à base d'un nanomatériau au graphène Download PDF

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Publication number
WO2014048276A1
WO2014048276A1 PCT/CN2013/083883 CN2013083883W WO2014048276A1 WO 2014048276 A1 WO2014048276 A1 WO 2014048276A1 CN 2013083883 W CN2013083883 W CN 2013083883W WO 2014048276 A1 WO2014048276 A1 WO 2014048276A1
Authority
WO
WIPO (PCT)
Prior art keywords
graphene
monofilaments
wire
graphene nanomaterial
nanomaterial
Prior art date
Application number
PCT/CN2013/083883
Other languages
English (en)
Chinese (zh)
Inventor
朱宽军
李新民
司佳钧
Original Assignee
国家电网公司
中国电力科学研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国家电网公司, 中国电力科学研究院 filed Critical 国家电网公司
Publication of WO2014048276A1 publication Critical patent/WO2014048276A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope

Definitions

  • the invention belongs to the technical field of overhead transmission line wires, and particularly relates to a wire based on graphene nano material. Background technique
  • the loss of the transmission line mainly depends on the resistance of the wire.
  • the application of the high conductivity wire can not only significantly reduce the transmission line loss, but also increase the transmission capacity, reduce the life cycle cost, and achieve energy saving and emission reduction.
  • the application number is CN200810194862.7
  • the invention name is a high conductivity soft aluminum wire and a manufacturing method thereof
  • a high conductivity soft aluminum wire and a manufacturing method thereof are disclosed.
  • the composition of the soft aluminum wire includes: Si ⁇ 0.08 % ; Fe ⁇ 0.20%, Cu ⁇ 0.005 %; 0.07 - 0.15 % boron, the balance is aluminum; the unit is weight percentage. It uses soft aluminum wire to reduce transmission line losses, thus effectively reducing operating costs.
  • the improvement is mainly the composition of the traditional aluminum wire, and the improvement effect is limited.
  • the copper alloy conductor is composed of a copper alloy containing 0.15 to 0.70% by weight (excluding 0.15% by weight) of Sn in a copper base material containing 0.001 to 0.1% by weight of oxygen (10 to 1000 ppm by weight).
  • the average particle diameter of the particles constituting the crystal structure is ⁇ or less, and 80% or more of the oxide of Sn dispersed in the matrix of the finished structure is a minute oxide having an average particle diameter of ⁇ or less.
  • Graphene materials have excellent electrical and mechanical properties, electrical conductivity is about three times that of aluminum, and 1.85 times that of copper, and the material has stable electrical conductivity. At the same time, the stone material is the thinnest and hardest nano material with a strong tensile strength (about 100 GPa).
  • the new nanomaterial graphene has a short history of research, and its excellent material properties have been prepared and applied at home and abroad. In terms of research, a lot of research work has been carried out and breakthrough research results have been achieved.
  • the object of the present invention is to provide a wire based on graphene nano material, which solves the problem that the conductivity of the conventional metal material such as aluminum and copper is limited, and the transmission capacity of the overhead transmission line is limited, and the wire of the graphene nano material can effectively reduce the line loss and improve The transmission power of overhead transmission lines.
  • a wire based on graphene nanomaterials the improvement being that the structure of the wire is:
  • the wire comprises an inner layer and an outer layer, wherein the inner layer is formed by twisting a single wire, and the monofilaments are closely adhered to each other to form a regular tubular structure, and the outer layer is provided with S a periphery of the inner layer, the outer layer has a circular cross section; the inner layer is formed by twisting steel or carbon fiber monofilament, graphene nano material nanotube monofilament or composite monofilament, The outer layer is twisted from a sheet of graphene nano material;
  • the graphene nano material sheet has a circular arc structure, and the arc angle a ranges from 25° ⁇ a ⁇ 30°;
  • Form 2 the wire is twisted by a round wire type monofilament, and the monofilaments are closely adhered to each other to form a regular tubular structure; the monofilament is a nanotube monofilament or a composite single of graphene nano material Wire twisted;
  • the circular cross section of the composite monofilament is a carbon fiber composite material
  • the inside of the circular cross section is a graphene nano material.
  • Another preferred technical solution of the present invention is that the graphene nano material sheets are uniformly distributed along the circumferential direction thereof.
  • a gap is provided between the graphene nano material sheets.
  • the ring formed by the sheet of graphene nano material and the wire are concentric.
  • the twisting directions of the adjacent layers are opposite.
  • Replacement page (Article 26) According to still another preferred embodiment of the present invention, the monofilament is twisted into an n-layer structure, and n is a natural number greater than 1.
  • the monofilaments located in the same layer are uniformly distributed along the circumferential direction thereof.
  • the beneficial effects of the present invention include:
  • the wire of the invention adopts graphene nano material as the conductive part, and the conductivity is more than three times higher than the traditional metal materials such as aluminum and copper. Under the same external conditions, the allowable current carrying capacity of the graphene wire of the same conductive section is a common wire. 10 times; therefore, graphene nanomaterial wires can significantly reduce the line loss, improve the wire draw ratio, improve the wire sag performance, reduce the tower height, increase the line spacing, and save line investment;
  • the graphene nano material wire can greatly increase the transmission power, and the transmission line transmission capacity increases;
  • the graphene nanomaterial has a strong tensile strength, and as a bearing part or a conductive part of the wire, the tensile strength of the wire can be significantly improved.
  • the graphene nano material-based wires of the invention have different structure types, can meet different transmission power requirements and different line operation requirements, and have good applicability.
  • Figure 1 is an attached graphene nanomaterial wire
  • Figure 2 is a nanotube-type graphene nanomaterial wire
  • Figure 3 is a composite graphene nanomaterial wire
  • Figure 4 is an attached nanotube tubular wire
  • Figure 5 is an attached composite graphene wire. detailed description
  • the invention provides a wire based on graphene nano material applied to an overhead transmission line, the wire has excellent electrical conductivity, can significantly reduce the electric loss of the transmission line, and improve the transmission power of the transmission line.
  • Wires have different structural shapes
  • the inner layer is made of composite materials such as steel or carbon fiber, mainly used as the bearing force, and the base of the new conductor of graphene nano material
  • the outer layer is a graphene nano material sheet. Cheng, is the conductive part of the overhead transmission line conductor.
  • the number of layers of the inner core or carbon fiber composite core and the number of outer graphene nanomaterials can be designed according to the actual transmission capacity of the line and the operation requirements of the line.
  • the steel or carbon fiber material is prepared into a round wire type monofilament, the monofilaments are closely adhered to each other, and are twisted into a regular tubular structure as an inner layer of the wire, and a graphene nano material sheet is disposed on the periphery of the inner layer of the wire, graphene nanometer
  • the material sheet constitutes an outer layer having a circular cross-sectional area, and the graphene nano material sheets are uniformly distributed in the outer layer along the circumferential direction thereof, and the graphene nano material sheets are equally spaced.
  • the graphene nano material sheet has a circular arc structure. According to the current line design method, in this patent, the sheet of graphene nano material is taken as 125 pieces, and the corresponding arc angle a ranges from 25 ° ⁇ a ⁇ 30°.
  • the graphene material is used as a wire structure, as a bearing and a base structure, and a graphene material nanotube of different diameters and numbers is twisted.
  • the diameter and number of graphene material nanotubes are designed according to the design of the line design and the operation requirements of the line.
  • the graphene material nanotubes are used as monofilaments and are twisted into a regular tubular structure.
  • the monofilaments are closely attached to each other, and the central axes of the monofilaments in the same layer form a circular shape.
  • Structure type three new type of composite graphene nano material wire
  • the circular cross-section is a base material, and a composite material such as carbon fiber which satisfies the requirements for wire manufacturing and transportation can be selected.
  • the graphene nano material is used as a wire portion, and is combined with a carbon fiber material to form a monofilament, and then twisted as needed. Make wires that meet the engineering needs.
  • the diameter and number of composite graphene materials are designed according to the line design transmission capacity and line operation requirements.
  • the composite graphene material is used as a monofilament, and is twisted into a regular tubular structure.
  • the monofilaments are closely adhered to each other, and the central axis of the monofilament located in the same layer is circular.
  • Structure type four new type of combined graphene nano material wire
  • the combination of the above three types is a structural form in which a novel nanotube-type graphene wire is attached, and a new composite graphene wire is attached.
  • a novel nanotube-type graphene wire is attached, that is, a graphene nanotube is used as a monofilament, and is twisted into a rule.
  • the tubular structure is used as the inner layer, and the monofilaments are closely attached to each other;
  • the outer layer of the inner layer of the wire is provided by a sheet of graphene nano material, and the sheet of graphene nano material is composed of a circular outer layer having a circular cross section, graphene nanometer.
  • the sheet of material is evenly distributed in the outer layer along its circumferential direction.
  • the graphene nano material sheet has a circular arc structure, and the arc angle a has the same value range as the structure type.
  • Figure 5 shows a composite composite graphene wire, that is, the composite graphene described in the structural form III, the graphene nano material as a wire portion, combined with carbon fiber and other materials into a monofilament, and then twisted into a wire
  • the regular tubular structure is used as the inner layer, and the monofilaments are closely attached; the graphene nanomaterial flakes are disposed on the outer periphery of the inner conductor layer, and the graphene nano material flakes form a circular outer layer, graphene nanometer.
  • the sheet of material is evenly distributed in the outer layer along its circumferential direction.
  • the graphene nano material sheet has a circular arc structure, and the arc angle a has the same value range as the structure type.
  • the current carrying capacity of the novel wire of the graphene nano material of the invention is 10 times of the current carrying capacity of the common wire of the same conductive cross section.
  • the calculation of the current carrying capacity of the wire is based on China's current standards. The specific calculation formula is as follows:
  • D is the outer diameter of the wire, m ;
  • 6 ⁇ is the emissivity of the surface of the wire
  • S is the Stephen-Boltzmann constant, 5.67 (T 8 W/m 2 ;
  • ⁇ is the ambient temperature, °C ;
  • « is the coefficient of heat absorption of the wire; the ratio of AC to DC resistance at t °C;
  • ⁇ is DC resistance at t °C
  • the graphene material has a resistivity of only about 10 ⁇ ⁇ ⁇ , which is the material with the lowest resistivity in the world.
  • the allowable temperature of the ordinary aluminum wire is 90 'C, and the graphene of the same conductive section is the same.
  • the allowable current carrying capacity of the graphene wire is 10 times that of the ordinary aluminum wire.

Landscapes

  • Non-Insulated Conductors (AREA)
  • Conductive Materials (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

La présente invention concerne une structure d'un fil conducteur à base d'un nanomatériau au graphène, la structure étant définie comme suit : forme I, le fil conducteur comprend une couche intérieure et une couche extérieure, la couche intérieure étant formée par torsion des monofilaments d'acier ou de fibres de carbone et de monofilaments de nanotubes ou de monofilaments composites de nanomatériau au graphène ; et la couche extérieure étant formée par torsion de feuilles de nanomatériau au graphène ; forme II, le fil conducteur est formé par torsion de monofilaments de nanotubes ou de monofilaments composites de nanomatériaux au graphène de type fil circulaire ; les monofilaments étant liés étroitement les uns aux autres pour former une structure tubulaire régulière ; la section transversale circulaire d'un monofilament composite étant constituée d'une matière composite de fibres de carbone ; et l'intérieur de la section transversale circulaire étant constituée de nanomatériau au graphène. Selon l'invention, le fil conducteur à base de nanomatériau au graphène peut efficacement réduire la perte en ligne, améliorer la puissance de transmission d'une ligne de transmission de puissance aérienne ; et la capacité de transport de courant admissible du fil conducteur en graphène est dix fois supérieure à celle d'un fil conducteur ordinaire.
PCT/CN2013/083883 2012-09-28 2013-09-22 Fil conducteur à base d'un nanomatériau au graphène WO2014048276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210367402.6A CN103700440B (zh) 2012-09-28 2012-09-28 一种基于石墨烯纳米材料的导线
CN201210367402.6 2012-09-28

Publications (1)

Publication Number Publication Date
WO2014048276A1 true WO2014048276A1 (fr) 2014-04-03

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PCT/CN2012/086365 WO2014048038A1 (fr) 2012-09-28 2012-12-11 Fil conducteur à base de nanomatériau de graphène
PCT/CN2013/083883 WO2014048276A1 (fr) 2012-09-28 2013-09-22 Fil conducteur à base d'un nanomatériau au graphène

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PCT/CN2012/086365 WO2014048038A1 (fr) 2012-09-28 2012-12-11 Fil conducteur à base de nanomatériau de graphène

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CN (1) CN103700440B (fr)
WO (2) WO2014048038A1 (fr)

Families Citing this family (8)

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CN105174204B (zh) * 2014-06-17 2017-05-17 清华大学 碳纳米管复合线的制备方法
CN106297992B (zh) * 2016-10-26 2017-07-07 覃元子 一种石墨烯电缆线及其制备方法和接线方法
CN106782838A (zh) * 2016-11-10 2017-05-31 过冬 一种架空输电线
CN106782839A (zh) * 2016-11-10 2017-05-31 过冬 一种绝缘架空电缆
CN106448842A (zh) * 2016-11-10 2017-02-22 过冬 一种无芯材绝缘架空电缆
CN107964671A (zh) * 2017-12-01 2018-04-27 常德金德新材料科技股份有限公司 一种改进工作电极的电铸槽
CN110745815B (zh) * 2018-07-24 2022-08-16 南开大学 制备石墨烯-金属复合线材的方法
CN111218814A (zh) * 2018-11-26 2020-06-02 南开大学 石墨烯-金属线材复合纤维及其制备方法

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CN102610294A (zh) * 2012-03-20 2012-07-25 无锡华能电缆有限公司 节能高强度铝合金线及其制造方法
CN202905266U (zh) * 2012-09-28 2013-04-24 中国电力科学研究院 一种基于石墨烯纳米材料的导线

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CN103700440A (zh) 2014-04-02
CN103700440B (zh) 2016-09-21

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