CN101702332A - Ice-coating-proof power conducting wire - Google Patents
Ice-coating-proof power conducting wire Download PDFInfo
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- CN101702332A CN101702332A CN200910087016A CN200910087016A CN101702332A CN 101702332 A CN101702332 A CN 101702332A CN 200910087016 A CN200910087016 A CN 200910087016A CN 200910087016 A CN200910087016 A CN 200910087016A CN 101702332 A CN101702332 A CN 101702332A
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- conducting wire
- carbon fiber
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- power conducting
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Abstract
The invention discloses an ice-coating-proof power conducting wire. The power conducting wire comprises a carbon fiber bundle and a metal conducting medium layer. The metal conducting medium layer is coated outside the carbon fiber bundle. The power conducting wire is the ice-coating-proof power conducting wire which is obtained by combining the carbon fiber as a heating material with the metal conducting medium layer. In the power frequency state, the power conducting wire accords with the characteristics of metal surface skin effect conductance. In the process of replacing pure metal power conducting wire, the electric conductivity of the conducting wire is not influenced. The ice-coating-proof power conducting wire of the invention has high tensile strength, big elastic modulus, small temperature change and good flexibility, and has the functions of automatically heating and preventing ice coating.
Description
Technical field
The present invention relates to power transmission technology field, relate in particular to a kind of electrical lead of anti-icing.
Background technology
Electric energy is served human society as the final energy form that the various energy are transformed, and becomes requisite production, factor in living among the human lives.Electric energy is produced by electric energy such as hydroelectric station, thermal power station, wind fields usually with producing, wants to make full use of electric energy and electric power must be sent to endlessly electricity needs ground.The mankind enter the information age, and are serious day by day to the dependence of electric power, singly are not that large scale industry needs a large amount of electric power, the work-at-home electric consumption on lighting, and various communication apparatus electricity consumptions, the information equipment that carries human bulk information be unable to do without electric energy too.Thereby supply of electric power need guarantee that clog-free stable transfer satisfies the human society needs.
Current, employed electrical lead the various electrical networks from power plant to terminal use's electric energy transmitting all is to be made by mechanical strand by conducting mediums such as the good copper of electric conductivity, aluminium and the anti-high steel core of intensity that draws.There is critical defect in the electrical lead that this simple metal is made under extreme natural conditions.The large scale electric network power outage repeatedly cause line interruption to cause because of bad weather once took place in history, and for example north America region is had a power failure on a large scale winter, occurs in China's southern large scale electric network paralysis accident or the like, and has all caused heavy losses in 2008.Trace it to its cause, just be that above-mentioned this lead self does not have heating function, running into condensing gas or rain, snow, mist, haze at high and cold or subtropical zone monsoon climatic region freezes easily, make the load of electrical lead mechanics increase the weight of under action of gravity or overweight, the lead sag strengthens, even changes the electrical safety distance, when more serious, then can forget about it electric pole, electric tower, break electric wire, cause supply line's damage, influence power supply safety.Thereby, just the situation that great accident of power supply takes place frequently can appear.
In addition, in the existing power lead, the steel core autologous density of carrying effect is big, quality heavy, hardness is high owing to play, and the circuit tension is required height, and difficulty of construction is big; Because the characteristic of metal, plain conductor expands with heat and contract with cold seriously, and supply line's sag and tension force are big with temperature Change, and supply line occurs fatigability easily and damages, and causes the grid power transmission life-span to descend.
Thereby, need a kind of new electrical lead, extreme natural environment is had excellent adaptability, especially be suitable for easy ice-formation condition, under adverse weather condition, also can guarantee power supply safety.
Summary of the invention
Technical problem to be solved by this invention is, a kind of ice-coating-proof power conducting wire is provided, in order to solve plain conductor easily icing problem that endangers transmission line or facility under specific natural conditions.
For solving the problems of the technologies described above, the invention provides a kind of ice-coating-proof power conducting wire, this electrical lead comprises carbon fiber bundle and metallic conduction dielectric layer, described metallic conduction dielectric layer is coated on described carbon fiber bundle outside.
Further, described carbon fiber bundle is the bundle group that sub-thread carbon fiber bundle or multi-strand carbon fiber bundle form.Described sub-thread carbon fiber bundle is the sub-thread charcoal fibre bundle that 1k, 3k, 6k, 8k, 12k, 24k or 48k root carbon fiber are formed.The twisted wire that the bundle group that described multi-strand carbon fiber bundle forms is made up of the single bundle of multiply carbon fiber bundle.
Further, described metallic conduction dielectric layer is that sub-thread or multiply plain conductor coat the metallic conduction dielectric layer that forms around described carbon fiber bundle strand system.Described plain conductor is the plain conductor of 3 to 5 mm dias.Described metal is copper or aluminium or copper alloy or aluminium alloy, and described plain conductor is copper cash or aluminum steel or copper alloy wire or aluminium alloy wire.
Further, the carbon fibre material in the described carbon fiber bundle is a phosphorus content more than or equal to 95%, resistivity is less than or equal to 2.0 * 10
-3The carbon fibre material of Ω .cm.The tensile strength of described carbon fibre material is more than or equal to 3500MP.
The present invention has used electricity, calorifics and mechanics principle, has created the electrical lead of electric property, thermal property and good mechanical performance.Ice-coating-proof power conducting wire of the present invention is the ice-coating-proof power conducting wire that combines with the metallic conduction medium as exothermic material with carbon fiber.Under the power frequency state, meet the characteristic of metal surface kelvin effect conduction, do not influence the performance of lead conduction.Ice-coating-proof power conducting wire of the present invention has the tensile strength height, modulus of elasticity is big, difference variation is little, flexility is good, have the anti-icing function of automatic heating.This is because carbon fiber has conduction, heating function, the tensile strength height, and flexility is good, and coefficient of thermal expansion and contraction is little.
Description of drawings
Fig. 1 is the structural representation of a kind of ice-coating-proof power conducting wire disclosed in this invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The present invention is directed to existing metal power lead and be easy to freeze, and do not have the problem that adds temperature function after freezing, a kind of new electrical lead structure is provided, this electrical lead has from the anti-icing function of heating.Its core component is a carbon fiber, its principle mainly be utilize electric current by the time activate carbon atom and do Brownian movement and produce heat outer conducting medium is continued to heat, form good thermal-protective coating.
Simultaneously, the axial strength of carbon fiber and modulus height, no creep, fatigue durability is good, and specific heat and electric conductivity are between nonmetal and metal, and coefficient of thermal expansion and contraction is little, good corrosion resistance, fibre density is low, light weight.
In addition, carbon fiber also has the feature of light weight than steel core, thereby integrated wire is in light weight, the anti-intensity height that draws, and flexility is good.
Shown in 1 figure, shown a kind of structural representation of ice-coating-proof power conducting wire, this electrical lead comprises carbon fiber 1, carbon fiber 1 appearance parcel electric conductivity favorable conductive medium 2.Described carbon fiber is a carbon fiber bundle, and described conducting medium is the metallic conduction dielectric layer.
This carbon fiber 1 can be the sub-thread charcoal fibre bundle of 1k, 3k, 6k, 8k, 12k, 24k, 48k root carbon fiber, also can be multiply charcoal fibre bundle twisted wire, can select according to conductor cross-section and load-bearing load.
This outer layer metal conducting medium 2 can adopt copper or aluminium to make, and uses sub-thread copper (or aluminium) wire-wound of diameter 3-5 millimeter the formation of core component carbon fiber strand system.This outer layer metal conducting medium 2 also can be copper alloy or aluminium alloy, and described plain conductor is copper alloy wire or aluminium alloy wire.
For making this electrical lead have better transmission performance, the physics and the chemical parameters of carbon fiber there is requirement, major parameter is as shown in the table:
| The parameter subitem | Phosphorus content (%) | Resistivity (Ω .cm) | Tensile strength (MP) |
| Parameter value | ??≥95 | ??≤2.0×10 -3 | ??≥3500 |
Wherein, the electric conductivity and the tensile strength of described phosphorus content decision carbon fiber, the electric conductivity and the tensile strength of the high more carbon fiber of phosphorus content are high more.The carbon fiber phosphorus content of Aeronautics and Astronautics, military field use reaches more than 99% at present, but the high more manufacture difficulty of phosphorus content is big more, and the abnormal height of its price uses uneconomical in anti-ice coating wire.
Wherein, the electrical properties of described resistivity decision carbon fiber, the high more power consumption of resistivity is big more.Phosphorus content reaches 95% carbon fiber, and resistivity is 2.0 * 10
-3Satisfy needs of the present invention.
Wherein, the mechanical property of described tensile strength decision carbon fiber, tensile strength is high more good more.Phosphorus content reaches 95% carbon fiber, and tensile strength is that 3500MP satisfies needs of the present invention.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (9)
1. an ice-coating-proof power conducting wire is characterized in that, this electrical lead comprises carbon fiber bundle and metallic conduction dielectric layer, and described metallic conduction dielectric layer is coated on described carbon fiber bundle outside.
2. ice-coating-proof power conducting wire as claimed in claim 1 is characterized in that, described carbon fiber bundle is the bundle group that sub-thread carbon fiber bundle or multi-strand carbon fiber bundle form.
3. ice-coating-proof power conducting wire as claimed in claim 2 is characterized in that, described sub-thread carbon fiber bundle is the sub-thread charcoal fibre bundle that 1k, 3k, 6k, 8k, 12k, 24k or 48k root carbon fiber are formed.
4. ice-coating-proof power conducting wire as claimed in claim 2 is characterized in that, the twisted wire that the bundle group that described multi-strand carbon fiber bundle forms is made up of the single bundle of multiply carbon fiber bundle.
5. ice-coating-proof power conducting wire as claimed in claim 1 is characterized in that, described metallic conduction dielectric layer is that sub-thread or multiply plain conductor coat the metallic conduction dielectric layer that forms around described carbon fiber bundle strand system.
6. ice-coating-proof power conducting wire as claimed in claim 5 is characterized in that, described plain conductor is the plain conductor of 3 to 5 mm dias.
7. as each described ice-coating-proof power conducting wire among the claim 1-6, it is characterized in that described metal is copper or aluminium or copper alloy or aluminium alloy.
8. as each described ice-coating-proof power conducting wire among the claim 1-6, it is characterized in that,
Carbon fibre material in the described carbon fiber bundle is a phosphorus content more than or equal to 95%, resistivity is less than or equal to 2.0 * 10
-3The carbon fibre material of Ω .cm.
9. ice-coating-proof power conducting wire as claimed in claim 8 is characterized in that,
The tensile strength of described carbon fibre material is more than or equal to 3500MP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910087016A CN101702332A (en) | 2009-06-15 | 2009-06-15 | Ice-coating-proof power conducting wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910087016A CN101702332A (en) | 2009-06-15 | 2009-06-15 | Ice-coating-proof power conducting wire |
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| CN101702332A true CN101702332A (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910087016A Pending CN101702332A (en) | 2009-06-15 | 2009-06-15 | Ice-coating-proof power conducting wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916611A (en) * | 2010-07-21 | 2010-12-15 | 郑州电缆有限公司 | Far infrared anti-ice and snow bunched aerial insulated cable |
| CN104200893A (en) * | 2014-09-23 | 2014-12-10 | 马根昌 | Overhead transmission line |
-
2009
- 2009-06-15 CN CN200910087016A patent/CN101702332A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916611A (en) * | 2010-07-21 | 2010-12-15 | 郑州电缆有限公司 | Far infrared anti-ice and snow bunched aerial insulated cable |
| CN104200893A (en) * | 2014-09-23 | 2014-12-10 | 马根昌 | Overhead transmission line |
| CN104200893B (en) * | 2014-09-23 | 2016-09-21 | 国网山东省电力公司冠县供电公司 | High-altitude power transmission line |
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Open date: 20100505 |