CN105427950A - Carbon fiber mandrel for ice melting-type conductor and manufacturing method thereof - Google Patents
Carbon fiber mandrel for ice melting-type conductor and manufacturing method thereof Download PDFInfo
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- CN105427950A CN105427950A CN201511010037.3A CN201511010037A CN105427950A CN 105427950 A CN105427950 A CN 105427950A CN 201511010037 A CN201511010037 A CN 201511010037A CN 105427950 A CN105427950 A CN 105427950A
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- carbon fiber
- ice
- heat transfer
- transfer layer
- melting type
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- 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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- 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
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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Abstract
The invention provides a carbon fiber mandrel for an ice melting-type conductor and a manufacturing method thereof. The carbon fiber mandrel for the ice melting-type conductor comprises a conductive heating body and a carbon fiber heat transfer layer, and the carbon fiber heat transfer layer coats the conductive heating body. The manufacturing method for the carbon fiber mandrel for the ice melting-type conductor comprises the following steps: firstly, the carbon fiber heat transfer layer is prepared; then, the carbon fiber heat transfer layer coats the conductive heating body; and finally, the carbon fiber heat transfer layer and the conductive heating body are subjected to pultrusion. The carbon fiber mandrel is used in the ice melting-type conductor; when the ice melting-type conductor is subjected to ice melting processing, the conductive heating body is only energized, heat generated by the conductive heating body is transferred outside to the surface of the conductor, ice covering the surface of the conductor is heated and melted, and the conductor ice melting effects can be realized; and the ice melting-type conductor has the outstanding advantages of high strength, light weight, small sag, corrosion resistance and the like.
Description
Technical field
The present invention relates to lead technology field, especially relate to a kind of carbon fiber plug for ice-melting type wire and manufacture method thereof.
Background technology
Traditional transmission pressure many employings steel reinforced aluminium conductor, its basic structure is coiling aluminium stranded conductor outside steel core wire, this steel reinforced aluminium conductor own wt is heavier, if run in ice and snow weather environment for a long time, when being especially applied to heavy ice-covering area, wire is easy to freeze, and the continuous thickening of ice sheet further increases the icing weight of wire, be easy to make transmission pressure because of self-strength, bearing capacity is not enough and rupture, thus the accident that causes power failure.
In order to prevent transmission pressure from rupturing because icing weight is too heavy, with regard to needing, timely ice-melt process is carried out to the icing on transmission pressure.At present, in the ice-melt anti-ice technical field of transmission line, comparatively ripe it is possible that based on the hot de-icing method of transmission line thermal effect, can be divided into and exchange ice-melt and DC ice melting two class.The actual ice-melt effect of traditional steel core heat-resisting aluminium alloy twisted wire is unsatisfactory, and, because himself heavier-weight, steel core are corrosion-resistant etc., therefore, be applied to high and cold, High aititude, heavily ice-covering area overhead power transmission conducting wire, still there is many potential safety hazards.Particularly in recent years, because the destructiveness of extreme severe cold weather to transmission line is serious, research and development for the efficient ice-melt anti-ice technology of transmission line just seem very urgent and important, especially for how carrying out ice-melt in long-term ice and snow weather to improve the safety in operation of transmission line, and how to carry out intelligent ice-melt regulation and control to improve the operation stability of transmission line at less, the conductor temperature of electric current throughput at night time lower, etc., there is very large research and development space.
Summary of the invention
The technical problem to be solved in the present invention is: for prior art Problems existing, a kind of carbon fiber plug for ice-melting type wire and manufacture method thereof are provided, improve the anti-ice cover ability of ice-melting type wire, and then improve safety in operation, the stability of transmission line.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of carbon fiber plug for ice-melting type wire, comprises conductive heating unit and carbon fiber heat transfer layer, and described carbon fiber heat transfer layer is coated on outside conductive heating unit.
Preferably, the second reinforcement heat transfer layer is set between described conductive heating unit and carbon fiber heat transfer layer.
Preferably, coated first reinforcement heat transfer layer outside described carbon fiber heat transfer layer.
Preferably, the coated heat conducting coating of described carbon fiber plug outer surface.
Preferably, the described coated wear-resistant protecting layer of heat conducting coating outer surface.
As above for a manufacture method for the carbon fiber plug of ice-melting type wire, comprise the steps:
First, carbon fiber heat transfer layer is prepared;
Then, carbon fiber heat transfer layer is wrapped in outside conductive heating unit;
Finally, pultrusion is carried out to carbon fiber heat transfer layer, conductive heating unit.
Preferably, described carbon fiber heat transfer layer adopts carbon fiber as wild phase, and thermostable heat-conductive resin is prepared from as continuous phase.
Preferably, described carbon fiber heat transfer layer is based on carbon fiber wire, immerses in thermostable heat-conductive resin with glass fiber yarn, aramid fiber yarn or spandex thread simultaneously, then prepares by immersing mould.
Preferably, described carbon fiber plug outer surface thermostable heat-conductive insulation fluorine resin coating as heat conducting coating, and is cured process to described heat conducting coating.
Preferably, fumed silica is added in described heat conducting coating or nano-calcium carbonate filler carries out reinforcement.
Compared with prior art, the invention has the beneficial effects as follows: carbon fiber plug of the present invention is used in ice-melting type wire, and electric conductor in wire and between carbon fiber plug, it is electric insulation between conductive heating unit and electric conductor, due to the built-in conductive heating unit of carbon fiber plug, when ice-melting type wire normally runs, transmit electricity by means of only electric conductor, when needs carry out ice-melt process to wire, only conductive heating unit is energized, using the ice melting current of the normal duty electric current of wire as wire, because conductive heating unit and electric conductor are separate on electrically, and the sectional area of conductive heating unit is much smaller than the sectional area of electric conductor, when the sectional area of wire energized part diminishes, its resistance becomes large, correspondingly, the caloric value of conductive heating unit just increases greatly, the heat that conductive heating unit produces outwards is passed to conductive line surfaces, the ice sheet covering conductive line surfaces is heated thawing, thus can realize wire icing ice-melt effect and without the need to have a power failure, simultaneously, because carbon fibre material itself has high strength, lightweight, operating temperature high, therefore, after the present invention is used for ice-melting type wire, the advantage such as make that this ice-melting type wire has high strength, lightweight, sag is little, ampacity is large, operating temperature is high and corrosion-resistant is the first-selection of high and cold, High aititude, heavy ice-covering area.
Accompanying drawing explanation
Fig. 1 is the structural map of a kind of carbon fiber plug for ice-melting type wire of the present invention.
Fig. 2 is the structural map of ice-melting type wire.
Mark in figure: 1-conductive heating unit, 2-electric conductor, 3-heat conducting coating, 4-hydrophobic coating, 5-carbon fiber plug, 6-conductive filler layer, 51-wear-resistant protecting layer, 52-first reinforcement heat transfer layer, 53-carbon fiber heat transfer layer, 54-second reinforcement heat transfer layer.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of carbon fiber plug for ice-melting type wire as shown in Figure 1, be layer structure, mainly comprise conductive heating unit 1 and carbon fiber heat transfer layer 53, described carbon fiber heat transfer layer 53 is coated on outside conductive heating unit 1; Between conductive heating unit 1 and carbon fiber heat transfer layer 53, arrange the second reinforcement heat transfer layer 54, the second described reinforcement heat transfer layer 54 can adopt alkali-free glass fiber silk consolidation to form, and can improve insulation property and the tensile strength of carbon fiber plug 5; Also alkali-free glass fiber cloth consolidation can be adopted to form, except the insulation property that improve carbon fiber plug 5 and tensile strength, can also prevent it from producing horizontal split, enhance the shock resistance mechanical property of carbon fiber plug 5.Coated first reinforcement heat transfer layer 52 outside carbon fiber heat transfer layer 53, coated heat conducting coating 3 outside the first reinforcement heat transfer layer 52, at the coated wear-resistant protecting layer 51 of heat conducting coating 3 outer surface, adopt the carbon fiber plug 5 of this structure, the first reinforcement heat transfer layer 52 wherein, second reinforcement heat transfer layer 54 and heat conducting coating 3 can improve the heat transfer of carbon fiber plug 5, heat conductivility, after carbon fiber plug 5 is used as the plug of ice-melting type wire, the heat produced by conductive heating unit 1 is successively outwards passed to ice-melting type conductive line surfaces, thus the ice sheet covering ice-melting type conductive line surfaces is heated thawing, achieve the ice-melt effect of icing on wire.
Carbon fiber plug 5 for ice-melting type wire of the present invention is when being applied to ice-melting type wire, the concrete structure of described ice-melting type wire as shown in Figure 2, described carbon fiber plug 5 is plugs of ice-melting type wire, coated with conductive body 2 outside carbon fiber plug 5, electric insulation between described electric conductor 2 and carbon fiber plug 5, electric insulation between described conductive heating unit 1 and electric conductor 2.Described conductive heating unit 1 adopts aluminium alloy conductor usually, or copper alloy wire, or silver alloy wire, to improve the heating power amount of conductive heating unit 1.In order to improve heat transfer, the capacity of heat transmission of ice-melting type wire, can at carbon fiber plug 5 outer surface, electric conductor 2 outer surface thermostable heat-conductive insulation fluorine resin coating as heat conducting coating 3, enough heat conductive insulating fluororesin are filled as conductive filler layer 6, to improve the ice-melt effect of ice-melting type wire between carbon fiber plug 5 and electric conductor 2, between electric conductor 2 and electric conductor 2.Consider ice-melting type wire normally in overhead transmission line, wire may be subject to the effects such as wind-force and swing in course of normal operation, in order to alleviate the frictional dissipation between carbon fiber plug 5 in ice-melting type wire and the electric conductor 2 contacted with each other, can at the coated wear-resistant protecting layer 51 of carbon fiber plug 5 outer surface, described wear-resistant protecting layer 51 can be silicone resin coating, or fluor resin coating, or epoxy coating.
Above-mentioned ice-melting type wire, as overhead power transmission conducting wire, can carry out current delivery and can realize ice-melt object by switching the electric conductor 2 being positioned at wire external layer and the conductive heating unit 1 being positioned at wire internal layer.Specifically, when wire normal transmission runs, transmit electricity by means of only electric conductor 2, when needs carry out ice-melt process to wire, switch to and only conductive heating unit 1 is energized, now, using the ice melting current of the normal duty electric current of wire as wire.Because conductive heating unit 1 and electric conductor 2 are separate on electrically, and the sectional area of conductive heating unit 1 is much smaller than the sectional area of electric conductor 2, therefore, after switching, the sectional area of wire energized part diminishes, and its resistance becomes large, the caloric value of conductive heating unit 1 increases greatly, the heat that conductive heating unit 1 produces successively outwards is passed to conductive line surfaces, and the ice sheet covering conductive line surfaces is heated thawing, thus achieve icing on wire ice-melt effect and without the need to having a power failure.Owing to arranging conductive filler layer 6 between carbon fiber plug 5 and electric conductor 2, between electric conductor 2 and electric conductor 2, the heat transfer property of wire is greatly improved.Frozen water after melting to make icing on wire departs from wire as early as possible, can in the coated fluorine silicon resin coating of wire outer surface as hydrophobic coating 4, and make the hydrophobic angle of this hydrophobic coating 4 reach more than 120 °, thus make the wire icing order of severity far below other wires.By applying hydrophobic coating 4 on wire outermost layer, this hydrophobic coating 4 coordinates with conductive filler layer 6, wire of the present invention is made to be provided with the dual-use function of ice-melt and anti-ice, wire not power-off in normal transmission process can be realized and also can carry out ice-melt simultaneously, and make the ice-melt maximum effect of wire, be specially adapted to high and cold, heavy ice-covering area use, drastically increase the safety in operation of transmission line, stability.
Above-mentioned ice-melting type wire can be adopted and manufacture with the following method:
1st step, manufactures carbon fiber plug 5.Carbon fiber can be adopted as wild phase, thermostable heat-conductive resin prepares carbon fiber heat transfer layer 53 as continuous phase, then preset conductive heating unit 1 in the middle of carbon fiber heat transfer layer 53, with carbon fiber parcel conductive heating unit 1, is prepared into carbon fiber plug 5 by continuous pultrude process.
Described carbon fiber plug 5 also can be based on carbon fiber wire, immerse in thermostable heat-conductive resin with glass fiber yarn, aramid fiber yarn or spandex thread simultaneously, carbon fiber heat transfer layer 53 is prepared again by immersing mould, then wrap up conductive heating unit 1 with carbon fiber heat transfer layer 53, finally use the method for pultrusion to carry out continuous seepage.Conductive heating unit 1 wherein can be aluminium alloy conductor, or copper alloy wire, or silver alloy wire, preferably can bear 250 DEG C of high temperature.Resin system is wherein heat curing-type or thermoplastics type, and after adding high heat filling, make resin overall thermal conductivity energy good, heat resistance is more than 200 DEG C.
2nd step, at carbon fiber plug 5, electric conductor 2 outer surface thermostable heat-conductive insulation fluorine resin coating as heat conducting coating 3, seamless between carbon fiber plug 5 and electric conductor 2 when the coating thickness of described heat conducting coating 3 preferably makes wire stranding.The curing time of described heat conducting coating 3 is between 30 minutes-1 hour, according to the difference of concrete curing temperature, be generally 35 minutes curing time, 40 minutes, 45 minutes, 50 minutes, 55 minutes etc., further, the electric conductor 2 of coated with thermally conductive coating 3 and the stranded of carbon fiber plug 5 will be completed within 30 minutes.
Due between fiber plug 5 and electric conductor 2, air is there is between electric conductor 2 and electric conductor 2, and air is the non-conductor of heat, in order to the Heat Conduction Problems brought air improves, optimize the binding ability between outer electric conductor 2 and carbon fiber plug 5 simultaneously, for this reason, can between carbon fiber plug 5 and electric conductor 2, enough heat conductive insulating fluororesin are filled as conductive filler layer 6 between electric conductor 2 and electric conductor 2, described conductive filler layer 6 not only can strengthen heat-transfer effect, but also be conducive to alleviating between carbon fiber plug 5 and electric conductor 2, frictional dissipation between electric conductor 2 and electric conductor 2.
Described heat conducting coating 3 can special modified fluororesin be matrix, and be equipped with curing agent, coalescents etc. and make, wherein can add function Heat Conduction Material, to strengthen its heat conductivility, also can by after filler reinforcement such as interpolation fumed silica or nano-calcium carbonate etc., make its heatproof can reach more than 300 degrees Celsius, thixotropy can reach the high 15mm of heap and not trickle, thus make heat conducting coating 3 become high-temperature insulation heat conducting coating, drastically increase the heat conductivility of heat conducting coating 3.
3rd step, stranding machine is utilized to be undertaken stranded by the above-mentioned carbon fiber plug 5 through coated with thermally conductive insulation fluororesin and electric conductor 2 single line, electric conductor 2 single line, outer stranded some of carbon fiber plug 5, carries out continuous seepage with this, until reach required diameter of wire, length.
4th step, after electric conductor 2 and the stranded production of carbon fiber plug 5 complete, by conductive filler layer 6 fully solidification 45 minutes to 80 minutes, according to the difference of concrete curing temperature, be generally 50 minutes curing time, 55 minutes, 60 minutes, 65 minutes, 70 minutes, 75 minutes etc.
5th step, after conductive filler layer 6 completion of cure, to the hydrophobic fluorine silicon resin of outer surface spraying heat conduction of wire, and makes wire outer surface to cover completely fluorine silicon resin coating as hydrophobic coating 4.After having sprayed, be cured process to hydrophobic coating 4, curing time is 5 minutes to 20 minutes.According to the difference of concrete curing temperature, be generally 10 minutes curing time, 13 minutes, 15 minutes, 18 minutes etc.
Described hydrophobic coating 4 can adopt fluorine silicon resin to be matrix; and add fluorine-containing curing agent, add Nano sol, high temperature resistant auxiliary agent, heat filling etc. make; its hydrophobic angle can reach more than 120 °; high temperature resistant more than 300 degrees Celsius; be coated in the outermost layer of wire; thus form a hydrophobic protective finish of high heat conduction, have high temperature resistant and high thermal conductivity simultaneously concurrently, further enhancing the ice-melt anti-ice performance of wire.
Solidify after process completes at hydrophobic coating 4, finally can obtain ice-melting type carbon fiber composite material core wire.
It should be noted that, conductive heating unit 1 in ice-melting type wire of the present invention, electric conductor 2 can copper alloy or aluminium alloy or silver alloy be also material, first utilize big drawing machine to be drawn into copper alloy or aluminium alloy or silver alloy electric conductor single line, then formed by multiply electric conductor single line system of twisting.The cross sectional shape of single strand conductive body single line is wherein circular or oval, when concrete strand is processed, independently can twist system by sub-thread, or after the first preformed plying of multiply, again by the strand strand system after plying.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the carbon fiber plug for ice-melting type wire, it is characterized in that: comprise conductive heating unit (1) and carbon fiber heat transfer layer (53), described carbon fiber heat transfer layer (53) is coated on conductive heating unit (1) outside.
2. a kind of carbon fiber plug for ice-melting type wire according to claim 1, is characterized in that: arrange the second reinforcement heat transfer layer (54) between described conductive heating unit (1) and carbon fiber heat transfer layer (53).
3. a kind of carbon fiber plug for ice-melting type wire according to claims 1 or 2, is characterized in that: the described coated first reinforcement heat transfer layer (52) in carbon fiber heat transfer layer (53) outside.
4. a kind of carbon fiber plug for ice-melting type wire according to claims 1 or 2, is characterized in that: the coated heat conducting coating of described carbon fiber plug outer surface (3).
5. a kind of carbon fiber plug for ice-melting type wire according to claim 4, is characterized in that: the described coated wear-resistant protecting layer of heat conducting coating (3) outer surface (51).
6. the manufacture method of a kind of carbon fiber plug for ice-melting type wire as described in claim 1-5, is characterized in that: comprise the steps:
First, carbon fiber heat transfer layer (53) is prepared;
Then, carbon fiber heat transfer layer (53) is wrapped in conductive heating unit (1) outside;
Finally, pultrusion is carried out to carbon fiber heat transfer layer (53), conductive heating unit (1).
7. the manufacture method of a kind of carbon fiber plug for ice-melting type wire according to claim 6, it is characterized in that: described carbon fiber heat transfer layer (53) adopts carbon fiber as wild phase, and thermostable heat-conductive resin is prepared from as continuous phase.
8. the manufacture method of a kind of carbon fiber plug for ice-melting type wire according to claim 6, it is characterized in that: described carbon fiber heat transfer layer (53) is based on carbon fiber wire, immerse in thermostable heat-conductive resin with glass fiber yarn, aramid fiber yarn or spandex thread simultaneously, then prepare by immersing mould.
9. the manufacture method of a kind of carbon fiber plug for ice-melting type wire according to claim 7 or 8, it is characterized in that: described carbon fiber plug outer surface thermostable heat-conductive insulation fluorine resin coating as heat conducting coating (3), and is cured process to described heat conducting coating (3).
10. the manufacture method of a kind of carbon fiber plug for ice-melting type wire according to claim 9, is characterized in that: in described heat conducting coating (3), interpolation fumed silica or nano-calcium carbonate filler carry out reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010037.3A CN105427950A (en) | 2015-12-29 | 2015-12-29 | Carbon fiber mandrel for ice melting-type conductor and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511010037.3A CN105427950A (en) | 2015-12-29 | 2015-12-29 | Carbon fiber mandrel for ice melting-type conductor and manufacturing method thereof |
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| CN105427950A true CN105427950A (en) | 2016-03-23 |
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| CN201511010037.3A Pending CN105427950A (en) | 2015-12-29 | 2015-12-29 | Carbon fiber mandrel for ice melting-type conductor and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106782791A (en) * | 2017-02-13 | 2017-05-31 | 昆明昆云电缆有限公司 | The anti-overload conductor of one kind radiating |
| CN110473652A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of heat tracing electric cable of submersible pump |
| CN117079884A (en) * | 2023-08-01 | 2023-11-17 | 安徽尚纬电缆有限公司 | Two-core parallel bundling overhead conductor with small-section heating and ice melting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117079884B (en) * | 2023-08-01 | 2024-05-14 | 安徽尚纬电缆有限公司 | Two-core parallel bundling overhead conductor with small-section heating and ice melting structure |
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Application publication date: 20160323 |