CN106373649B - A kind of composite core of grid power transmission conducting wire and preparation method thereof - Google Patents
A kind of composite core of grid power transmission conducting wire and preparation method thereof Download PDFInfo
- Publication number
- CN106373649B CN106373649B CN201610866485.1A CN201610866485A CN106373649B CN 106373649 B CN106373649 B CN 106373649B CN 201610866485 A CN201610866485 A CN 201610866485A CN 106373649 B CN106373649 B CN 106373649B
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- composite core
- core
- power transmission
- layer
- conducting wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1835—Sheaths comprising abrasive charges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ropes Or Cables (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of composite core of grid power transmission conducting wire, the composite core is made of center carbon fiber core, intermediate buffer layer and outer resin layer；The intermediate buffer layer is made of resin material, fibre reinforced materials and antiwear additive, the resin material is one kind in Lauxite, polyurethane, the fibre reinforced materials is the one or more in carbon fiber, aramid fiber, silicon carbide fibre, glass fibre, and the antiwear additive is one kind in a nanometer molybdenum sulfide, carbon nanotubes；The outer resin layer is epoxy resin, a coating is also coated with the outer resin layer, the coating is polyalphaolefin.Due to the use of multi-layer compound structure and unique padded coaming, so that composite core prepared by the present invention has good bending property, bending radius is less than 30 times of compound core diameter, it is significantly better than similar product, shake performance with good mechanical tensile resistance and wind resistance, be particularly suitable for the use of coastal and western windy area.
Description
Technical field
The present invention relates to the preparation method of the core of power transmission cable in power grid, especially a kind of power transmission cable carbon fiber is compound
Core and preparation method thereof.
Background technology
With the fast development of China's economy, some areas power load rapid growth, transmission line of electricity can't bear to bear to transmit
The demand of the quick dilatation of capacity, power failure, disconnection fault occur again and again caused by overload, and power transmission has become power industry and sent out
" bottleneck " of exhibition, low-loss, the economizing type advanced composite material (ACM) transmission pressure of large capacity cause each side's concern.With carbon fiber etc.
Advanced composite material (ACM) core conducting wire made of steel core in the traditional twisted wire of composite material replacement is a kind of overhead power transmission of novel concept
Circuit conducting wire.Carbon fiber composite core wire uses new composite technology, can eliminate magnetic resistance existing for aluminium steel conductor and show
As and fuel factor, under identical traffic capacity, comprehensive line loss can reduce 6%~8%.By national annual electricity generating capacity 41413 in 2010
Hundred million kWh, line loss per unit 615% calculate, and can reduce about 160~21,500,000,000 kWh of line loss, are calculated by coal consumption for power generation 335g/kWh, equivalent to
It is annual to save about 540~7,200,000 t of electric coal, reduce corresponding CO2Discharge capacity, effects of energy saving and emission reduction are notable.Obtained necessarily into
In the advanced composite material (ACM) synthesis core conducting wire of fruit, with the aluminium twisted wire with carbon fiber composite core of complex technique company of the U.S. (CTC) production
(ACCC) it is the most typical.
ACCC carbon fiber composite core wires have big light-weight, intensity, high temperature resistant, corrosion-resistant, anti-compared with conventional wires
Creep, line loss is small, sag is low, thermal coefficient of expansion is small, with a series of excellent properties such as environment is affine, realize the section of power transmission
Energy, environmental protection and safety, so as to cause the very big of various countries to be paid close attention to.Its cored wire is by layer centered on carbon fiber and glass fibre cladding system
Into single plug, carbon fiber using polyamide refractory process, carbonization form；The epoxy resin tool of high intensity, high tenacity formula
There are very strong impact resistance, resistance to tension stress and bending stress.The manufacturing technology of ACCC twisted wires is ripe day by day, main using continuous
Extrusion, core technology are the manufactures of plug, and critical material is high temperature tough epoxy resin.In carbon fiber composite core rod, carbon
Fiber accounts for 35%, and glass fibre accounts for 35%, and epoxy resin accounts for 30%.Carbon fiber used is high for tensile strength, and extension at break is big
T700S grades, glass fibre is alkaline-resisting E types, and epoxy resin is the toughened resin of high temperature modification.
Cable using carbon fiber complex core as cable load-bearing core merely, due to being subject to steam, height in long-term use
The long term of the conditions such as temperature, resin material can degrade, and cause the performance of the especially compound wicking surface of compound core performance to become
Difference, in the case where hanging transmission line of electricity is chronically at wind shake operating mode, can rub between compound wicking surface and plain conductor so that multiple
Close wicking surface and abrasion even mechanical destruction further occurs, cause composite core load-bearing and insulating properties hydraulic performance decline, ultimately result in
Cable is damaged.
CN103578665A discloses the preparation method of overhead transmission line stranded fiber reinforced resin base composite core,
Comprise the following steps：1. fiber is at the uniform velocity pulled out from creel, then dry through moisture separator；2. by the modified resin of different component
It is driven into constant temperature steeping vat；3. the multiply fiber to have dried is then fed into constant temperature steeping vat respectively by the device aggregation of collection yarn
Middle impregnation；4. precuring；5. by involving the composite core strand of semi-solid preparation, using winding machine outside each strand twining package tape
Material；6. secondary precuring；7. each strand of composite core through secondary precuring is each passed through separated time mould, carried out subsequently into wire parallel module
It is twisted；8. curing molding；9. take-up.The method effectively increases the bending strength of product, ensures product curved surface operating rate.
CN103646718A discloses a kind of fiber composite core conductive wire for power transmission line, and the conducting wire is by the fiber that sets gradually
Composite core, coating and outer layer twisted wire composition, coating are in fluorocarbon resin coating, polyurea elastomer coating, polyurethane coating
One or more coating coat.The fiber composite core conductive wire for power transmission line is wear-resisting, corrosion-resistant, wet-heat resisting, resistance to steam,
Uvioresistant, coating protect fiber composite core to be worn from environmental corrosion and aluminum steel, improve fiber composite core anti-aging property.
The content of the invention
The problem of composite core that the present invention is directed in carbon fiber composite core cable is easy to wear, there is provided a kind of improved carbon is fine
Composite core is tieed up, performance that the cable prepared using the composite core has a good mechanical tensile resistance and wind resistance shakes is especially suitable
In the use of coastal and western windy area, due to the use of multi-layer compound structure and unique padded coaming so that the present invention
The composite core of preparation has good bending property, and bending radius is less than 30 times of compound core diameter, is significantly better than similar product,
Achieve unexpected technique effect.
A kind of composite core of grid power transmission conducting wire, the composite core is by center carbon fiber core, intermediate buffer layer and outer layer tree
Lipid layer forms；The intermediate buffer layer is made of resin material, fibre reinforced materials and antiwear additive, and the resin material is urea
One kind in urea formaldehyde, polyurethane, the fibre reinforced materials are in carbon fiber, aramid fiber, silicon carbide fibre, glass fibre
One or more, the antiwear additive is one kind in a nanometer molybdenum sulfide, carbon nanotubes；The outer resin layer is asphalt mixtures modified by epoxy resin
Fat, is also coated with a coating on the outer resin layer, the coating is polyalphaolefin.
A diameter of 3-7mm of the center carbon fiber core, the thickness of intermediate buffer layer are 1-2mm, the thickness of outer resin layer
Spend for 1-3mm.
The thickness of the coating is 150-300 microns, preferably 200-220 microns.
The composite core is cylinder, and a diameter of 10-30mm, is preferably 15-20mm.
The particle diameter of the antiwear additive is 50-200 nanometers.
The intermediate buffer layer is by the resin material of 70-90wt%, the fibre reinforced materials and 5-10wt% of 10-20wt%
Antiwear additive composition, the preferably resin material of 80-85wt%, the fibre reinforced materials of 12-15wt% and 3-8wt%'s is wear-resistant
Agent forms.
A kind of preparation method of grid power transmission conducting wire composite core, comprises the following steps：
Resin adhesive liquid is cured in grinding tool in leading portion and is gradually heated up, under the action of inner pattern releasing agent applicable, is pulled out by draw-gear
Forming temperature is 140-200 DEG C, and hardening time is 30-90 seconds；
Center carbon fiber core by leading portion curing process passes through well-mixed intermediate buffering by quick cooling, coating
Layer material, intermediate buffering layer thickness are 1-10mm；
The core material for being coated with intermediate layer is cured by 120-150 DEG C of processing；
Consolidate again at 190-210 DEG C after applying epoxy resin after quickly being cooled down to the core material for being coated with intermediate layer
Change is handled；
A strata alhpa olefin is finally applied, obtains the grid power transmission conducting wire composite core.
Composite core of the present invention has a good tensile resistance, and with good wear-resisting, resistance to steam performance, can be with
Avoid composite core from being worn by aluminum steel, effectively extend the service life of composite core.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1：
The composite core of grid power transmission conducting wire, the composite core are 2mm's by center carbon fiber core, the thickness of a diameter of 5mm
Intermediate buffer layer and the outer resin layer that thickness is 1mm form；The intermediate buffer layer is by 70wt% Lauxites, 20wt%
Aramid fiber, 10wt% nanometers of molybdenum sulfide compositions；The outer resin layer is epoxy resin, is also applied on the outer resin layer
There is the polyalphaolefin that a layer thickness is 200 microns.
Embodiment 2：
The composite core of grid power transmission conducting wire, the composite core are 1mm's by center carbon fiber core, the thickness of a diameter of 5mm
Intermediate buffer layer and the outer resin layer that thickness is 2mm form；The intermediate buffer layer is by 85wt% polyurethane, 10wt% virtues
Synthetic fibre fiber, 5wt% carbon nanotubes composition；The outer resin layer is epoxy resin, and one is also coated with the outer resin layer
Layer thickness is 150 microns of polyalphaolefin.
Comparative example 1：
The composite core of grid power transmission conducting wire, the composite core are 1mm's by center carbon fiber core, the thickness of a diameter of 5mm
Outer resin layer forms；Also coated with the polyalphaolefin that a layer thickness is 200 microns on the outer resin layer..
It is detected for composite core made from embodiment and comparative example, specific data are as follows：
| Tensile strength (MPa) | Shear strength (MPa) | Bending diameter (mm) | Elongation at break (%) | |
| Embodiment 1 | 3050 | 86 | 262 | 1.5 |
| Embodiment 2 | 3240 | 89 | 235 | 1.6 |
| Comparative example 1 | 2165 | 70 | 571 | 1.2 |
It the above is only the implementation example of the present invention, protection scope of the present invention be not limited in any way.It is every to use this
Equivalent substitution known to field or the equivalent technical solution for exchanging formation, are within the scope of the present invention.
Claims (5)
1. a kind of composite core of grid power transmission conducting wire, the composite core is by center carbon fiber core, intermediate buffer layer and outermost resin
Layer composition；The intermediate buffer layer is made of resin material, fibre reinforced materials and antiwear additive, and the resin material is ureaformaldehyde
One kind in resin, polyurethane, the fibre reinforced materials are in carbon fiber, aramid fiber, silicon carbide fibre, glass fibre
One or more, the antiwear additive are one kind in a nanometer molybdenum sulfide, carbon nanotubes；The outer resin layer is epoxy resin,
A coating is also coated with the outer resin layer, the coating is polyalphaolefin；A diameter of 3- of the center carbon fiber core
7mm, the thickness of intermediate buffer layer is 1-2mm, and the thickness of outer resin layer is 1-3mm；The composite core is cylinder；In described
Between cushion by the resin material of 80-85wt%, the antiwear additive composition of the fibre reinforced materials of 12-15wt% and 3-8wt%.
2. the composite core of grid power transmission conducting wire according to claim 1, it is characterised in that the thickness of the coating is 150-
300 microns.
3. the composite core of grid power transmission conducting wire according to claim 1, it is characterised in that the thickness of the coating is 200-
220 microns.
4. the composite core of grid power transmission conducting wire according to claim 1, it is characterised in that the particle diameter of the antiwear additive is 50-
200 nanometers.
5. the preparation method of grid power transmission conducting wire composite core, comprises the following steps described in claim 1：
(1) by resin adhesive liquid leading portion cure grinding tool in gradually heat up, under the action of inner pattern releasing agent applicable, by draw-gear pull out into
Type temperature is 140-200 DEG C, and hardening time is 30-90 seconds；
(2) the center carbon fiber core Jing Guo leading portion curing process passes through well-mixed intermediate buffering by quick cooling, coating
Layer material, intermediate buffering layer thickness are 1-10mm；
(3) core material for being coated with intermediate buffer layer is cured by 120-150 DEG C of processing；
(4) to be coated with intermediate buffer layer core material quickly cooling after apply epoxy resin after again at 190-210 DEG C into
Row curing process；
(5) a strata alhpa olefin is finally applied, obtains the grid power transmission conducting wire composite core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866485.1A CN106373649B (en) | 2016-09-29 | 2016-09-29 | A kind of composite core of grid power transmission conducting wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866485.1A CN106373649B (en) | 2016-09-29 | 2016-09-29 | A kind of composite core of grid power transmission conducting wire and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106373649A CN106373649A (en) | 2017-02-01 |
| CN106373649B true CN106373649B (en) | 2018-04-24 |
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| CN109637722B (en) * | 2018-11-06 | 2020-11-03 | 深圳烯湾科技有限公司 | Carbon nanotube fiber wire |
| CN110343367B (en) * | 2019-07-31 | 2021-11-12 | 国网河南省电力公司电力科学研究院 | High-toughness carbon fiber composite core for overhead conductor |
| JP2021036495A (en) * | 2019-08-30 | 2021-03-04 | 矢崎総業株式会社 | Extrusion flexible flat cable and wire harness |
| CN113172971A (en) * | 2020-06-22 | 2021-07-27 | 中国石化集团胜利石油管理局有限公司电力分公司 | Carbon fiber composite material wire core and production method thereof |
| CN113329534A (en) * | 2021-05-20 | 2021-08-31 | 湖北工业大学 | Carbon fiber heating wire for road and bridge snow melting and deicing |
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| CN1152085A (en) * | 1995-12-12 | 1997-06-18 | 宋春燕 | Gasket for disc brake |
| CN101309056B (en) * | 2008-05-30 | 2012-03-07 | 哈尔滨工业大学 | Preparing method of antisotropic friction plate of ultrasonic motor and special preparing apparatus thereof |
| CN102516708B (en) * | 2011-11-25 | 2014-07-02 | 中国电力科学研究院 | Composite core for power grid transmission line wire and preparation method thereof |
| JP2014072039A (en) * | 2012-09-28 | 2014-04-21 | Kobe Steel Ltd | PRECURSOR FOR MANUFACTURING Nb3Sn SUPERCONDUCTING WIRE ROD AND Nb3Sn SUPERCONDUCTING WIRE ROD |
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Granted publication date: 20180424 |