CN106531335B - A kind of power transmission cable with icing protection and preparation method thereof - Google Patents
A kind of power transmission cable with icing protection and preparation method thereof Download PDFInfo
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- CN106531335B CN106531335B CN201611203646.5A CN201611203646A CN106531335B CN 106531335 B CN106531335 B CN 106531335B CN 201611203646 A CN201611203646 A CN 201611203646A CN 106531335 B CN106531335 B CN 106531335B
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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
- H01B9/008—Power cables for overhead application
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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
- H01B13/06—Insulating conductors or cables
-
- 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
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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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
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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
- H01B13/30—Drying; Impregnating
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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
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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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
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/203—Low temperature resistance
Abstract
The present invention relates to a kind of power transmission cable with icing protection, it is followed successively by from the inside to the outside：Power transmission cable inner core, the insulating layer being sheathed on outside power transmission cable inner core, the cable shield being sheathed on outside insulating layer and the coat layer of power cable being sheathed on outside cable shield, it is characterised in that：Icing protection layer is additionally provided among insulating layer and cable shield, the icing protection layer includes the high temperature composite phase-change material layer of internal layer and the low temperature composite phase-change material layer of outer layer.The present invention's is reasonable in design, combines closely between various pieces and is mutually isolated insulation.In cold snap; the high temperature composite phase-change material layer of internal layer can slow down heat and escape; and it can prevent cladding material from crossing heat ageing; the low temperature composite phase-change material layer of outer layer can keep cable outer surface in lower temperature state; power transmission cable outer surface is avoided to cause snow melt to freeze due to inner core fever; it can prevent that cable material is cold short at the same time, extend the service life of cable covering and insulating layer.
Description
Technical field
The present invention relates to a kind of power transmission cable, is particularly suitable for power transmission cable and its preparation side with icing protection
Method.
Background technology
High voltage overhead line can produce certain heat under conditions of transmission of electricity, the often outdoor temp in the environment in winter
Degree is generally lower than zero degree, and the inappreciable heat of that point can be absorbed at once by the low temperature of surrounding, in the case of snowy,
Cause the snowflake of attachment to convert liquid form from solid-state form, i.e., it is so-called to be melted into water.Coagulated in high-tension bus-bar heat release rate
Gu it will congeal into ice in the case of slow-footed, so generally having the phenomenon of icing on high-voltage line.Cause because surface freezes
Fracture that overhead transmission line is overweight, or steel tower and line bar are collapsed, and large area blackout are caused, to industrial and agricultural production, Ju Minsheng
Living and national defense facility causes heavy losses, therefore, it is necessary to pay much attention to and avoid the ice formation issues of high pressure overhead power line.
Harshness due to environment, at present, means manually or mechanically are taken in the domestic deicing to cable and steel tower more, this
Not only efficiency is low for kind deicing mode, and what is more important is dangerous greatly.
Chinese invention patent application 200910071443.9 discloses a kind of its main component of anti-icing paint and gathers to be fluorine-containing
Polymer resin 20-70%, fluorine-containing surfactant 1-7%, aluminium hydroxide 2-7%, nano powder 1-5%, metal is urged dry
Agent 0.1-2%, solvent 20-80%.The brushing ice coating resistance paint composition on the components such as high-tension cable, steel tower, communication line,
Ice coating resistance paint composition can play its optimal ice-covering-proof effect, reduce ice to the adhesive force of substrate surface and the icing on surface
Amount, recycles wind and elemental effect ice is easily separated from substrate surface.Anti-icing paint not only has metallic matrix very well
Combination power, higher heat conductivity, it is often more important that its superficies have low surface tension, high hydrophobic, hate ice, can be most
The adhesive force of water sum is reduced to limits, it is easily come off, so as to achieve the purpose that to prevent solidifying ice and deicing.
Chinese invention patent ZL201110061099.2 discloses a kind of ice-covering-proof composite coating and preparation method thereof.Comprising
Three layers：Internal layer is modifying epoxy resin by organosilicon layer, and intermediate layer is polyelectrolyte salt deposit, and outer layer is fluorinated silicone modified acrylate
Layer.In the ice-covering-proof composite coating of the component brushing such as high-tension cable, steel tower, communication line and aircraft surface, internal layer can increase
With the adhesive force of base material, the ion that intermediate layer ionizes out can delay to freeze, and outer layer has super-hydrophobicity, can reduce ice on surface
Adhesive force and surface ice cover.Ice-covering-proof composite coating not only has base material combines power, higher heat conductivity well,
Its superficies has low surface tension, high hydrophobic, hates ice, can reduce the adhesive force of water and ice to greatest extent, make its pole
It is easy to fall off, while intermediate layer can ionize out the attachment of ion delay ice in adverse circumstances, so that reaching prevents solidifying ice and deicing
Purpose.
Above-mentioned two methods are simple and practicable in engineering, conveniently control, cost are relatively low, and using effect is good, still, still
It can not so solve due to the fundamental issue of generate heat caused by cable line loss ice-melt and icing.
Chinese invention patent application CN104992743A discloses a kind of deicing carbon fiber high-low pressure aerial cable, including height
Voltage cable, high-tension cable are made of the insulating layer of internal high-voltage cable and surface, and the surface of insulating layer of high-tension cable is set
Carbon fiber heating line, the insulating layer inside of carbon fiber heating line set some carbon fibers.The invention passes through on high-tension cable surface
Set can heating power carbon fiber heating line, convert electrical energy into heat using carbon fiber, not only need increase carbon fiber hair
The heating plant of hot line, additionally consumes substantial amounts of electric energy, and adds a series of power supply units, also is difficult to operate in practice.
Still more, if heat supply is insufficient, there is also the problem of snow melt icing in the same old way.
Chinese utility model patent CN201540767U discloses a kind of anti-icing, it includes cable sheet
Body, cable body outside is with icefall is removed, except the gap for having 5~15mm between icefall and cable body.The practicality
It is new in original high-voltage cable periphery with remove icefall, and remove and have gap between icefall and cable, when into the gap
When being filled with gases at high pressure, except icefall expands, it can will be attached to except the accumulated snow on icefall surface shakes, so as to play the role of deicing.
The utility model is although simple in structure, and manufacture cost is low, but needs to increase a series of aerating device in the process of running, operates
Many troubles can be produced by getting up, and feasibility is poor.
Chinese invention patent application 201410296586.0 discloses a kind of phase-change temperature control formula high-tension cable, is related to electric power electricity
Cable technical field.The invention includes cable inner core and cable outer layer, and the cable inner core is followed successively by core, insulation from inside to outside
Layer, shielded layer, the cable outer layer is followed successively by lapping layer, sheath, armor and outer jacket from inside to outside, in the cable
It is filled layer between core and cable outer layer, the filled layer is composite phase-change material.Although the cable can energy-saving and environmental protection, from
Dynamic temperature control, and high-tension cable heat dispersal situations are improved by phase-change material, cable current-carrying, overload capacity and heat endurance are improved, is prolonged
Long cable service life, still, can't prevent cable consumption fever, and then cause snow melt and ice formation issues under low temperature.
In conclusion current, high voltage overhead line the main problems are as follows：
1st, winter snow weather when, ultra-high-tension power transmission line freeze cause the overweight fracture of overhead transmission line, or steel tower and line bar
Collapse, cause large area blackout.
2nd, generate heat since high voltage transmission line route consumes, cause insulating layer aging to be damaged.
3rd, the cable surface coating waterproof layer that foregoing invention proposes, slows down icing；Increase carbon fiber heating line ice-melt；Outer layer
Parcel removes icefall, with high pressure gas expansion deicing；The measures such as single phase-change material layers heat dissipation, can not solve weather high pressure of snowing
Cable causes surface snow melt and the fundamental issue to freeze because of heat dissipation.
When the 4th, using phase-change temperature control formula high-tension cable, due to the phase-change material only with paraffinic base microcapsules+polyolefin, lead
Cause to be used as effective phase-change material content relatively low, its quality is not as good as 80%, and the plasticity of the polyolefin as fixed material
Differ greatly with paraffin, be unfavorable for obtaining uniform phase transformation Rotating fields.
The content of the invention
The object of the present invention is to provide power transmission cable with icing protection and preparation method thereof, it makes power transmission cable exist
It will not freeze during high voltage power transmission after snow melt, so as to avoid the danger of artificial deicing and improve deicing efficiency.
The present invention is realized by following technology：
A kind of power transmission cable with icing protection, is followed successively by from the inside to the outside：Power transmission cable inner core, be sheathed on transmission of electricity electricity
Insulating layer, the cable shield being sheathed on outside insulating layer and the coat layer of power cable being sheathed on outside cable shield outside cable inner core,
It is characterized in that：Icing protection layer is additionally provided among insulating layer and cable shield,
The icing protection layer includes the high temperature composite phase-change material layer of internal layer and the low temperature composite phase-change material of outer layer
The bed of material.
As preferred embodiment, the high temperature composite phase-change material layer is mainly woven by high oil-absorbing non-woven fibre
Band and the high temperature composite phase-change material adsorbed on high oil-absorbing non-woven fibre braid over braid form.
Further, the high oil-absorbing non-woven fibre is polyolefins high oil-absorbing non-woven fibre, polyacrylate
More than one or both of class high oil-absorbing non-woven fibre or polyurethanes high oil-absorbing non-woven fibre mixed according to arbitrary proportion
Close the mixture formed；
The high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, aliphatic acid
One kind or two in salt, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid class
The mixture mixed more than kind according to arbitrary proportion.
As preferred embodiment, the low temperature composite phase-change material layer is mainly woven by high-hydroscopicity non-woven fibre
Band and the absorption low temperature composite phase-change material adsorbed on water imbibition non-woven fibre braid over braid form.
Further, the high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre or natural high
The mixture more than one or both of molecule class high-hydroscopicity non-woven fibre mixed according to arbitrary proportion.
Further, the synthesized polymer species high-hydroscopicity non-woven fibre is superabsorbent polyacrylate nonwoven
Fiber, polyvinyl alcohol high-hydroscopicity non-woven fibre, polyoxygenated alkanes high-hydroscopicity non-woven fibre or inorganic polymeric species are high
Water imbibition non-woven fibre；
The natural polymer subclass high-hydroscopicity non-woven fibre is cellulose-based high-hydroscopicity non-woven fibre, protein system
High-hydroscopicity non-woven fibre, pectin high-hydroscopicity non-woven fibre, alginic acid high-hydroscopicity non-woven fibre, chitosan high-hydroscopicity nonwoven
Fiber or heparin high-hydroscopicity non-woven fibre.
Further, the low temperature composite phase-change material is water, methanol, ethanol, acetone, dioxy six surround, ethylene glycol, two
It is more than one or both of methyl sulfoxide, dimethylformamide, tetrahydrofuran or polyethylene glycol according to arbitrary proportion mixing and
Into mixture.
As preferred embodiment, the power transmission cable inner core is fine copper, is preferably chosen silver-plated copper.
As preferred embodiment, the insulating layer is polyolefin insulation layer.
As preferred embodiment, the cable shield is the webbed metal wire of braiding or metallic film.
As preferred embodiment, the coat layer of power cable is low smoke and zero halogen pe sheath.
A kind of preparation method of the power transmission cable with icing protection：
First, in power transmission cable inner core outer wrapping insulating layer,
2nd, high temperature composite phase-change material layer and low temperature composite phase-change material layer are pricked successively outside insulating layer,
3rd, cable shield is pricked outside low temperature composite phase-change material layer, by the material of the coat layer of power cable, with thickness 3mm
~4mm is extruded in 90 DEG C~100 DEG C of temperature and is enveloped cable shield, forms the coat layer of power cable.
Further, when insulating layer is wrapped up in step 1, make in the resin material of insulating layer under 1.8MPa~2.0MPa into
1~2 minute vapor crosslinking of row, forms insulating layer.
Further, the high temperature composite phase-change material layer of step 2 is prepared by the following method：First insulating
Upper high oil-absorbing non-woven fibre braid over braid is pricked using winding method on layer；Then by high oil-absorbing non-woven fibre braid over braid under vacuum
Immersed in the state of being 20 DEG C~90 DEG C in temperature in the high temperature composite phase-change material of molten condition, fully absorb it；Finally
Squeeze and remove unnecessary high temperature composite phase-change material, and be cooled to room temperature.
Further, the low temperature composite phase-change material layer of step 2 is prepared by the following method：First in high temperature
Upper high-hydroscopicity non-woven fibre braid over braid is pricked using winding method on composite phase-change material layer；Then high-hydroscopicity non-woven fibre is compiled
Ribbon is immersed in low temperature composite phase-change material solution under vacuum under room temperature state, fully absorbs it；Finally squeeze go it is unnecessary
Low temperature composite phase-change material.
Further, cable shield is pricked using winding method.
The principle of the present invention is as follows：
Cold-storage is a kind of emerging functional high-polymer absorbent material with water-absorbing resin, is super absorbent resin series of products
The new application field constantly expanded in practical applications, and it is strong by its good water suction retention property and gel
Degree, can effectively extend the cryogenic freezing time.Macromolecule water uptake resin is the high polymer being made of three-dimensional space network, is met
It is electrolysed immediately after to water, dissociates into the ion of positively charged and negative electricity, the ion and water of this positively charged and negative electricity has strongly
Affinity interaction, can even thousands of times of hundreds times of rapid absorptance itself weight water.Hydrogel is expanded to after water suction, in room temperature
Under, no matter applying great pressure, the moisture of absorption also is difficult to be extruded, therefore can preserve for a long time.
High oil-absorbing resin is the low crosslinking degree copolymer being made of several monomers, intermolecular to have three-dimensional cross-linked netted knot
There are certain hole in structure, inside, send out resin by the solvation of substantial amounts of lipophilic group and oiliness molecule on macromolecular chain
Raw expansion.Due to the presence of cross-linked network, when crosslinking degree where appropriate, resin is only swollen and is not dissolved, oiliness molecule bag
It is rolled in macromolecular network structure, so as to achieve the purpose that oil is protected in oil suction.High oil-absorbing resin can not only absorb aliphatic hydrocarbon, virtue
Fragrant hydrocarbon-type oil, moreover it is possible to absorb many kinds of substance such as halogenated hydrocarbons and ethers, ketone, amine.
Most of materials absorb heat from environment or heat are released into environment in phase transition process, and the temperature of material
Spend approximate constant.Using this characteristic of material, thermal energy storage and temperature regulation and control can be carried out.In order to avoid power transmission cable
Line consumption produce heat cause cable surface snow melt freeze, first the external bread of cable conduction wrap up in one layer of fusing point it is higher, dissolving
The larger phase-change material of heat, then wraps up the phase-change material that fusing point is relatively low, heat of solution is larger, when internal layer phase transformation material again in its outer layer
When material absorbs the heat that cable consumption produces, heat exchange, resistance are carried out compared with the low temperature that the phase-change material of low melting point is accumulated with outer layer
Only heat escapes, so as to avoid, since fever causes cable surface temperature excessive, producing snow melt ice formation issues.
In order to fix above two phase-change material, high oil-absorbing resin is respectively adopted in the present invention and polymer absorbent material is made
For the fixative of ectonexine phase-change material, reduce its mobility and avoid it from escaping in use.
The beneficial effects of the invention are as follows：
1st, the present invention proposes a kind of the reasonable in design of power transmission cable with icing protection, tight between various pieces
Close combination and it is mutually isolated insulation.In cold snap, the high temperature composite phase-change material layer of internal layer is can absorb due to transmission pressure
Cable core sends out heat thermogenetic, slow down heat and escapes, and can prevent cladding material from crossing heat ageing, the low temperature compound phase of outer layer
Change material layer can cool down the heat escaped by internal layer, keep cable outer surface to avoid power transmission cable in lower temperature state
Outer surface can prevent that cable material is cold short since inner core fever causes snow melt to freeze, and extend cable covering and insulation
The service life of layer；When temperature is higher, the high temperature composite phase-change material layer of internal layer can be buffered to be sent out thermogenetic by transmission pressure cable core
Heat, prevents cladding material from crossing heat ageing, and the low temperature composite phase-change material layer of outer layer is in liquid condition, has good heat conduction
Performance, can help to radiate, and since it acts synergistically, be also beneficial to extend the service life of cable covering and insulating layer.
2nd, the fixation of high oil-absorbing resin and polymer absorbent material as ectonexine phase-change material is respectively adopted in the present invention
Agent, reduces its mobility and avoids it from escaping in use.
3rd, the present invention is during high-absorbable non-woven fibre absorbs phase-change material, using the side handled under vacuum condition
Method, is on the one hand conducive to exclude the air in non-woven fibre hole, while can improve high absorbent fiber and absorb phase-change material
Speed.
4th, the present invention is during high oil absorption non-woven fibre absorbs high temperature composite phase-change material, using slightly above phase transformation material
Expect the temperature of fusing point, can remain that it is in fluid state, be conducive to absorption of the non-woven fibre to it；When absorption process is complete
Into afterwards, it is quickly cooled to below fusing point, is conducive to make its coagulation forming.
Brief description of the drawings
Fig. 1 is the power transmission cable cross section structure schematic diagram of the present invention.
Wherein the reference numerals are as follows, 1- power transmission cable inner cores, 2- insulating layers, 3- icing protection layers, and 31- high temperature is answered
Close phase-change material layers, 32- low temperature composite phase-change material layers, 4- cable shields, 5- the coat layer of power cable.
Embodiment
With reference to the accompanying drawings and the invention will be further described in conjunction with the embodiments.It should be appreciated that tool described herein
Body embodiment only to explain the present invention, is not intended to limit the present invention.
(1) embodiment
A kind of power transmission cable with icing protection, is followed successively by from the inside to the outside：Power transmission cable inner core 1, be sheathed on transmission of electricity
Insulating layer 2, the cable shield 4 being sheathed on outside insulating layer 2 and the cable being sheathed on outside cable shield 4 outside cable inner core 1
Restrictive coating 5, it is characterised in that：Icing protection layer 3 is additionally provided among insulating layer 2 and cable shield 4,
The icing protection layer 3 includes the high temperature composite phase-change material layer 31 of internal layer and the low temperature composite phase-change of outer layer
Material layer 32.
As preferred embodiment, the high temperature composite phase-change material layer 31 is mainly woven by high oil-absorbing non-woven fibre
Band and the high temperature composite phase-change material adsorbed on high oil-absorbing non-woven fibre braid over braid form.
Further, the high oil-absorbing non-woven fibre is polyolefins high oil-absorbing non-woven fibre, polyacrylate
More than one or both of class high oil-absorbing non-woven fibre or polyurethanes high oil-absorbing non-woven fibre mixed according to arbitrary proportion
Close the mixture formed；
The high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, aliphatic acid
One kind or two in salt, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid class
The mixture mixed more than kind according to arbitrary proportion.
As preferred embodiment, the low temperature composite phase-change material layer 32 is mainly woven by high-hydroscopicity non-woven fibre
Band and the absorption low temperature composite phase-change material adsorbed on water imbibition non-woven fibre braid over braid form.
Further, the high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre or natural high
The mixture more than one or both of molecule class high-hydroscopicity non-woven fibre mixed according to arbitrary proportion.
Further, the synthesized polymer species high-hydroscopicity non-woven fibre is superabsorbent polyacrylate nonwoven
Fiber, polyvinyl alcohol high-hydroscopicity non-woven fibre, polyoxygenated alkanes high-hydroscopicity non-woven fibre or inorganic polymeric species are high
Water imbibition non-woven fibre；
The natural polymer subclass high-hydroscopicity non-woven fibre is cellulose-based high-hydroscopicity non-woven fibre, protein system
High-hydroscopicity non-woven fibre, pectin high-hydroscopicity non-woven fibre, alginic acid high-hydroscopicity non-woven fibre, chitosan high-hydroscopicity nonwoven
Fiber or heparin high-hydroscopicity non-woven fibre.
Further, the low temperature composite phase-change material is water, methanol, ethanol, acetone, dioxy six surround, ethylene glycol, two
It is more than one or both of methyl sulfoxide, dimethylformamide, tetrahydrofuran or polyethylene glycol according to arbitrary proportion mixing and
Into mixture.
As preferred embodiment, the power transmission cable inner core 1 is fine copper, is preferably chosen silver-plated copper.
As preferred embodiment, the insulating layer 2 is polyolefin insulation layer.
As preferred embodiment, the cable shield 4 is the webbed metal wire of braiding or metallic film.
As preferred embodiment, the coat layer of power cable 5 is low smoke and zero halogen pe sheath.
A kind of preparation method of the power transmission cable with icing protection：
First, in 1 outer wrapping insulating layer 2 of power transmission cable inner core,
2nd, high temperature composite phase-change material layer 31 and low temperature composite phase-change material layer 32 are pricked successively outside insulating layer 2,
3rd, cable shield 4 is pricked outside low temperature composite phase-change material layer 32, by the material of the coat layer of power cable 5, with thickness
3mm~4mm is extruded in 90 DEG C~100 DEG C of temperature and is enveloped cable shield 4, forms the coat layer of power cable 5.
Further, when insulating layer 2 is wrapped up in step 1, make in the resin material of insulating layer 2 under 1.8MPa~2.0MPa
1~2 minute vapor crosslinking is carried out, forms insulating layer 2.
Further, the high temperature composite phase-change material layer 31 of step 2 is prepared by the following method：First exhausted
Upper high oil-absorbing non-woven fibre braid over braid is pricked using winding method in edge layer 2；Then by high oil-absorbing non-woven fibre braid over braid in true
Immersed in the state of being 20 DEG C~90 DEG C in temperature under sky in the high temperature composite phase-change material of molten condition, fully absorb it；
Finally squeeze and remove unnecessary high temperature composite phase-change material, and be cooled to room temperature.
Further, the low temperature composite phase-change material layer 32 of step 2 is prepared by the following method：First in height
Upper high-hydroscopicity non-woven fibre braid over braid is pricked using winding method in temperature composite phase change material layer 31；Then it is high-hydroscopicity nonwoven is fine
Tie up braid over braid to immerse in low temperature composite phase-change material solution under room temperature state under vacuum, fully absorb it；Finally squeeze and go
Unnecessary low temperature composite phase-change material.
Further, cable shield 4 is pricked using winding method.
(2) specific embodiment
Embodiment 1
1) internal dielectric resin is coated on cable inner core, internal dielectric resin is carried out 1 minute steam under 1.8MPa
Crosslinking, forms insulating layer.
2) upper polypropylene high oil-absorbing non-woven fibre braid over braid is pricked using winding method, it is immersed to 70 DEG C of paraffin under vacuum
In, fully absorb it.
3) squeeze and remove unnecessary paraffin, and be cooled to room temperature.
4) upper polyacrylamide high-hydroscopicity non-woven fibre braid over braid is pricked using winding method, it is immersed under vacuum and is contained
In 50% glycol water low temperature composite phase-change material solution of 0.3% disodium hydrogen phosphate, fully absorb it.
5) squeeze and remove unnecessary glycol water.
6) upper foil shielding layer is pricked using winding method.
7) by the sheath material low smoke and zero halogen polyethylene of cable, extrude and coat for 90 DEG C in temperature with thickness 3mm, form shield
Jacket layer.
Embodiment 2
1) internal dielectric resin is coated on cable inner core, internal dielectric resin is carried out 1 minute steam under 1.8MPa
Crosslinking, forms insulating layer.
2) upper acrylamide and the cellulose high oil-absorbing non-woven fibre of butyl methacrylate grafting are pricked using winding method
Braid over braid, it is immersed in 70 DEG C of polyethylene glycol-800s under vacuum, fully absorbs it.
3) squeeze and remove unnecessary polyethylene glycol, and be cooled to room temperature.
4) upper viscose fiber high-hydroscopicity non-woven fibre braid over braid is pricked using winding method, it is immersed under vacuum and is contained
In the aqueous solution of 0.25% disodium hydrogen phosphate, 20% ethylene glycol and 20% diethylene glycol (DEG), fully absorb it.
5) squeeze and remove unnecessary above-mentioned aqueous solution.
6) upper iron sheet steel wire shielded layer is pricked using winding method.
7) by the sheath material low smoke and zero halogen polyethylene of cable, extrude and coat for 90 DEG C in temperature with thickness 3mm, form shield
Jacket layer.
Embodiment 3
1) internal dielectric resin is coated on cable inner core, internal dielectric resin is carried out 1 minute steam under 1.8MPa
Crosslinking, forms insulating layer.
2) upper methacrylate ester copolymer high oil-absorbing non-woven fibre braid over braid is pricked using winding method, by it in vacuum
In 45 DEG C of laurate of lower immersion, fully absorb it.
3) squeeze and remove unnecessary laurate, and be cooled to room temperature.
4) upper cellulose graft polyvinyl alcohol high-hydroscopicity non-woven fibre braid over braid is pricked using winding method, by it under vacuum
Immerse in 10% glycol water containing 0.2% disodium hydrogen phosphate, fully absorb it.
5) squeeze and remove unnecessary glycol water.
6) pricked using winding method and weave shielding layer of copper wires.
7) by the sheath material low smoke and zero halogen polyethylene of cable, extrude and coat for 90 DEG C in temperature with thickness 3mm, form shield
Jacket layer.
Embodiment 4
1) internal dielectric resin is coated on cable inner core, internal dielectric resin is carried out 1 minute steam under 1.8MPa
Crosslinking, forms insulating layer.
2) upper polyvinyl chloride/polystyrene copolymerization high oil-absorbing non-woven fibre braid over braid is pricked using winding method, by it in true
Sky is lower to be immersed in 60 DEG C of octadecyl alcolols, fully absorbs it.
3) squeeze and remove unnecessary octadecyl alcolol, and be cooled to room temperature.
4) upper polyacrylic acid high water absorptive non-woven fibre braid over braid is pricked using winding method, it is immersed 5% 2 under vacuum
In first sulfoxide aqueous solution, fully absorb it.
5) squeeze and remove unnecessary dimethyl sulfoxide aqueous solution.
6) upper foil shielding layer is pricked using winding method.
7) by the sheath material low smoke and zero halogen polyethylene of cable, extrude and coat for 90 DEG C in temperature with thickness 3mm, form shield
Jacket layer.
Embodiment 5
A kind of power transmission cable with icing protection, is followed successively by from the inside to the outside：Power transmission cable inner core (1), be sheathed on it is defeated
The outer insulating layer (2) of electrical cables inner core (1), be sheathed on the outer cable shield (4) of insulating layer (2) and be sheathed on cable shield
The coat layer of power cable (5) of layer (4) outside, it is characterised in that：It is additionally provided among insulating layer (2) and cable shield (4) anti-freeze
Functional layer (3),
The low temperature of high temperature composite phase-change material layer (31) and outer layer of the icing protection layer (3) including internal layer is compound
Phase-change material layers (32).
As preferred embodiment, the high temperature composite phase-change material layer (31) is mainly compiled by high oil-absorbing non-woven fibre
Ribbon and the high temperature composite phase-change material adsorbed on high oil-absorbing non-woven fibre braid over braid form.
The high oil-absorbing non-woven fibre is polyolefins high oil-absorbing non-woven fibre.
The high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons high temperature composite phase-change material.
The low temperature composite phase-change material layer (32) is mainly by high-hydroscopicity non-woven fibre braid over braid and absorption in water imbibition
Absorption low temperature composite phase-change material composition on non-woven fibre braid over braid.
The high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre.
The low temperature composite phase-change material is methanol aqueous solution.
The power transmission cable inner core (1) is fine copper, is preferably chosen silver-plated copper.
The insulating layer (2) is polyolefin insulation layer.
The cable shield (4) is the webbed metal wire of braiding or metallic film.
The coat layer of power cable (5) is low smoke and zero halogen pe sheath.
A kind of preparation method of the power transmission cable with icing protection：
First, in power transmission cable inner core (1) outer wrapping insulating layer (2),
2nd, upper high temperature composite phase-change material layer (31) and low temperature composite phase-change material layer are pricked successively outside in insulating layer (2)
(32),
3rd, upper cable shield (4) is pricked using winding method outside in low temperature composite phase-change material layer (32), by the coat layer of power cable
(5) material, extrudes and envelopes cable shield (4) for 100 DEG C in temperature with thickness 4mm, form the coat layer of power cable (5).
When wrapping up insulating layer (2) in step 1, make to carry out 1 minute steam in the resin material of insulating layer (2) under 1.8MPa
Crosslinking, forms insulating layer (2).
The high temperature composite phase-change material layer (31) of step 2 is prepared by the following method：First in insulating layer (2)
It is upper that upper high oil-absorbing non-woven fibre braid over braid is pricked using winding method；Then by high oil-absorbing non-woven fibre braid over braid under vacuum
Temperature is immersed in the high temperature composite phase-change material of molten condition in the state of being 20 DEG C~90 DEG C, fully absorbs it；Finally squeeze
Unnecessary high temperature composite phase-change material is removed, and is cooled to room temperature.
The low temperature composite phase-change material layer (32) of step 2 is prepared by the following method：First in high temperature compound phase
Upper high-hydroscopicity non-woven fibre braid over braid is pricked using winding method on change material layer (31)；Then high-hydroscopicity non-woven fibre is woven
Band is immersed in low temperature composite phase-change material solution under vacuum under room temperature state, fully absorbs it；Finally squeeze go it is unnecessary
Low temperature composite phase-change material.
Embodiment 6
It is unlike the embodiments above,
The high oil-absorbing non-woven fibre is polyacrylate high oil-absorbing non-woven fibre；
The high temperature composite phase-change material is higher alcohols high temperature composite phase-change material.
The high-hydroscopicity non-woven fibre is synthesized polymer species natural polymer class high-hydroscopicity non-woven fibre.
The synthesized polymer species high-hydroscopicity non-woven fibre is superabsorbent polyacrylate non-woven fibre, poly- second
Enol class high-hydroscopicity non-woven fibre, polyoxygenated alkanes high-hydroscopicity non-woven fibre or inorganic polymeric species high-hydroscopicity without
Spin fiber；
The low temperature composite phase-change material is dimethyl sulphoxide aqueous solution.
Embodiment 7
It is unlike the embodiments above,
The high oil-absorbing non-woven fibre is polyurethanes high oil-absorbing non-woven fibre；
The high temperature composite phase-change material is aromatic ketone type high temp composite phase-change material.
The high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre.
The synthesized polymer species high-hydroscopicity non-woven fibre is superabsorbent polyacrylate non-woven fibre, poly- second
Enol class high-hydroscopicity non-woven fibre, polyoxygenated alkanes high-hydroscopicity non-woven fibre or inorganic polymeric species high-hydroscopicity without
Spin fiber.
The low temperature composite phase-change material is dimethylformamide in water.
Embodiment 8
It is unlike the embodiments above,
The high oil-absorbing non-woven fibre is polyurethanes high oil-absorbing non-woven fibre；
The high temperature composite phase-change material is freon type high temp composite phase-change material.
The low temperature composite phase-change material is Aqueous Solutions of Polyethylene Glycol.
Embodiment 9
It is unlike the embodiments above,
The high temperature composite phase-change material is polyhydroxy carbonic acid type high temp composite phase-change material.
The low temperature composite phase-change material surrounds aqueous solution for dioxy six.
Embodiment 10
It is unlike the embodiments above,
The high temperature composite phase-change material is higher alcohols high temperature composite phase-change material.
The low temperature composite phase-change material is aqueous acetone solution.
The product of above-described embodiment is done into anti-ice performance test, under the conditions of glaze, keeps 12h, structure is as shown in the table.
The thickness of the insulating layer of above-described embodiment is 4.5mm, and the thickness of cable covering is 3.8mm.They use the longevity
Fate is according to as shown in the table.
Claims (7)
1. a kind of power transmission cable with icing protection, is followed successively by from the inside to the outside：Power transmission cable inner core (1), be sheathed on transmission of electricity
The outer insulating layer (2) of cable inner core (1), be sheathed on the outer cable shield (4) of insulating layer (2) and be sheathed on cable shield
(4) outside the coat layer of power cable (5), it is characterised in that：Anti-freeze work(is additionally provided among insulating layer (2) and cable shield (4)
Ergosphere (3),
The icing protection layer (3) includes the high temperature composite phase-change material layer (31) of internal layer and the low temperature composite phase-change of outer layer
Material layer (32)；The high temperature composite phase-change material layer (31) is by high oil-absorbing non-woven fibre braid over braid and absorption in high oil-absorbing
High temperature composite phase-change material composition on non-woven fibre braid over braid；The high temperature composite phase-change material layer (31) is according to as follows
What method was prepared：Upper high oil-absorbing non-woven fibre braid over braid is first pricked using winding method in insulating layer (2) periphery；Then height is made
Oil absorption non-woven fibre braid over braid immerses molten condition high temperature in the state of being 20 DEG C~90 DEG C in temperature under vacuum is compound
In phase-change material, fully absorb it；Finally squeeze and remove unnecessary high temperature composite phase-change material, and be cooled to room temperature；
The low temperature composite phase-change material layer (32) is by high-hydroscopicity non-woven fibre braid over braid and absorption in water imbibition non-woven fibre
Low temperature composite phase-change material composition on braid over braid；The low temperature composite phase-change material layer (32) is to be prepared as follows
Form：Upper high-hydroscopicity non-woven fibre braid over braid is first pricked using winding method in high temperature composite phase-change material layer (31) periphery；So
After make high-hydroscopicity non-woven fibre braid over braid under vacuum under room temperature state immerse low temperature composite phase-change material solution in, make it
Fully absorb；Finally squeeze and remove unnecessary low temperature composite phase-change material.
A kind of 2. power transmission cable with icing protection according to claim 1, it is characterised in that：The high oil absorption
Property non-woven fibre is polyolefins high oil-absorbing non-woven fibre, polyacrylate high oil-absorbing non-woven fibre or polyurethanes
The mixture more than one or both of high oil-absorbing non-woven fibre mixed according to arbitrary proportion；
The high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, soap
One or both of class, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid class
The mixture mixed above according to arbitrary proportion.
A kind of 3. power transmission cable with icing protection according to claim 1, it is characterised in that：The high water absorption
Property non-woven fibre be one in synthesized polymer species high-hydroscopicity non-woven fibre or natural polymer subclass high-hydroscopicity non-woven fibre
Kind or the two or more mixtures mixed according to arbitrary proportion；
The synthesized polymer species high-hydroscopicity non-woven fibre is superabsorbent polyacrylate non-woven fibre, polyvinyl alcohol
Class high-hydroscopicity non-woven fibre, polyoxygenated alkanes high-hydroscopicity non-woven fibre or inorganic polymeric species high-hydroscopicity nonwoven are fine
Dimension；
The natural polymer subclass high-hydroscopicity non-woven fibre, which is cellulose-based high-hydroscopicity non-woven fibre, protein system is high inhales
Water-based non-woven fibre, pectin high-hydroscopicity non-woven fibre, alginic acid high-hydroscopicity non-woven fibre, chitosan high-hydroscopicity nonwoven are fine
Dimension or heparin high-hydroscopicity non-woven fibre；
The low temperature composite phase-change material is water, methanol, ethanol, acetone, dioxy six surround, ethylene glycol, dimethyl sulfoxide (DMSO), diformazan
The mixture more than one or both of base formamide, tetrahydrofuran or polyethylene glycol mixed according to arbitrary proportion.
A kind of 4. power transmission cable with icing protection according to claim 1, it is characterised in that：The transmission of electricity electricity
Cable inner core (1) is fine copper or silver-plated copper；
The insulating layer (2) is polyolefin insulation layer；
The cable shield (4) is the webbed metal wire of braiding or metallic film；
The coat layer of power cable (5) is low smoke and zero halogen pe sheath.
A kind of 5. preparation method of the power transmission cable with icing protection, it is characterised in that：Include the following steps：
First, in power transmission cable inner core (1) outer wrapping insulating layer (2),
2nd, upper high temperature composite phase-change material layer (31) and low temperature composite phase-change material layer (32) are pricked successively outside in insulating layer (2),
3rd, after low temperature composite phase-change material layer (32) pricks cable shield (4) outside, by the material of the coat layer of power cable (5),
It is 90 DEG C~100 DEG C in temperature as 3mm~4mm using thickness and extrudes and envelope cable shield (4), forms the coat layer of power cable
(5)；
The high temperature composite phase-change material layer (31) of step 2 is prepared by the following method：First in insulating layer (2) periphery
Upper high oil-absorbing non-woven fibre braid over braid is pricked using winding method；Then make high oil-absorbing non-woven fibre braid over braid under vacuum in temperature
Spend to immerse in the high temperature composite phase-change material of molten condition in the state of 20 DEG C~90 DEG C, fully absorb it；Finally squeeze and go
Unnecessary high temperature composite phase-change material, and be cooled to room temperature；
The low temperature composite phase-change material layer (32) of step 2 is prepared by the following method：First in high temperature composite phase change material
Upper high-hydroscopicity non-woven fibre braid over braid is pricked in the bed of material (31) periphery using winding method；Then high-hydroscopicity non-woven fibre braid over braid is made
Immersed under vacuum under room temperature state in low temperature composite phase-change material solution, fully absorb it；Finally squeeze go it is unnecessary low
Temperature composite phase change material.
A kind of 6. preparation method of power transmission cable with icing protection according to claim 5, it is characterised in that：Step
When wrapping up insulating layer (2) in rapid one, the resin material of insulating layer (2) is set to carry out 1~2 minute steam under 1.8MPa~2.0MPa
Crosslinking, forms insulating layer (2).
A kind of 7. preparation method of power transmission cable with icing protection according to claim 5, it is characterised in that：Electricity
Cable shielded layer (4) is pricked using winding method.
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| CN107611289A (en) * | 2017-09-22 | 2018-01-19 | 国网吉林省电力有限公司松原供电公司 | Lithium battery with phase-change material |
| CN109135032A (en) * | 2018-06-29 | 2019-01-04 | 国网山东省电力公司惠民县供电公司 | A kind of flame-resistant insulation multi-functional cable |
| CN108922684B (en) * | 2018-06-29 | 2019-11-22 | 国网山东省电力公司惠民县供电公司 | A kind of cable with icing protection |
| CN111313053B (en) * | 2018-12-11 | 2021-11-05 | 中国科学院大连化学物理研究所 | Aluminum-air battery heat exchange device for communication base station |
| CN110379567B (en) * | 2019-07-31 | 2021-02-19 | 福建礼恩科技有限公司 | Preparation method of constant-temperature cable |
| CN110584877B (en) * | 2019-10-15 | 2023-08-08 | 南京泰立瑞信息科技有限公司 | Passive constant temperature system and constant temperature preparation device thereof |
| CN110596838B (en) * | 2019-10-30 | 2020-06-09 | 江苏华脉光电科技有限公司 | Anti-ice anti-aging self-supporting optical cable |
| CN110890170B (en) * | 2019-11-11 | 2021-04-27 | 昆明明超电缆有限公司 | Environment-friendly cable with strong brittleness resistance for low-temperature environment |
| CN112562895A (en) * | 2020-12-01 | 2021-03-26 | 天长市富信电子有限公司 | Screen wire and twisting method thereof |
| CN114300189B (en) * | 2021-12-31 | 2023-06-09 | 福建成田科技有限公司 | Composite high polymer cable |
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| JPH10247423A (en) * | 1997-03-05 | 1998-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Freeze-resistant communication cable |
| CN102241886B (en) * | 2010-05-11 | 2015-07-22 | 国家纳米科学中心 | Material having ice covering proof function, and preparation method and application thereof |
| CN103236311B (en) * | 2013-04-15 | 2015-07-15 | 国家电网公司 | Nano functional anti-icing conductor |
| CN103745772B (en) * | 2013-12-29 | 2016-05-18 | 湖南华菱线缆股份有限公司 | Phase transformation temp auto-controlled shielded cable |
| CN106233395B (en) * | 2014-05-01 | 2019-09-03 | 纳幕尔杜邦公司 | The cable made of phase-change material |
| CN104036866A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Phase-change temperature-control type high-voltage cable |
| CN104464911A (en) * | 2014-12-31 | 2015-03-25 | 湖南华菱线缆股份有限公司 | Low smoke halogen-free flame-retardant fireproof medium-voltage flexible cable |
| CN105017786B (en) * | 2015-06-25 | 2017-07-18 | 河北建筑工程学院 | Polyethylene glycol is from snow melt composite phase-change material modified pitch and preparation method thereof |
| CN205264399U (en) * | 2016-01-09 | 2016-05-25 | 张金足 | Thermal -insulated sections way supply cable |
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