CN106531335A - Power transmission cable with anti-icing function and preparation method of power transmission cable - Google Patents
Power transmission cable with anti-icing function and preparation method of power transmission cable Download PDFInfo
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- CN106531335A CN106531335A CN201611203646.5A CN201611203646A CN106531335A CN 106531335 A CN106531335 A CN 106531335A CN 201611203646 A CN201611203646 A CN 201611203646A CN 106531335 A CN106531335 A CN 106531335A
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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
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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
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to a power transmission cable with an anti-icing function. The power transmission cable sequentially comprises a power transmission cable inner core, an insulating layer sleeving the outside of the power transmission cable inner core, a cable shielding layer sleeving the outside of the insulating layer, and a cable sheath layer sleeving the outside of the cable shielding layer from inside to outside, wherein the power transmission cable is characterized in that an anti-icing function layer is also arranged in the middle of the insulating layer and the cable shielding layer and comprises an inner-layer high-temperature composite phase change material layer and an outer-layer low-temperature phase change material layer. The power transmission cable is reasonable in structure design and various parts are tightly combined and mutually isolated and insulated. In cold weather, the inner-layer high-temperature composite phase change material layer is capable of retarding heat escape and preventing overheat ageing of an outer-layer material; and the outer-layer low-temperature phase change material layer is capable of keeping the outer surface of the cable in a relatively low temperature state, preventing snow melting and icing, caused by heating of the inner core, of the outer surface of the power transmission cable, preventing cold shortness of the cable material and prolonging the life of the cable protection layer and the insulating layer.
Description
Technical field
The present invention relates to a kind of power transmission cable, is particularly suited for the power transmission cable with icing protection and its preparation side
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 for adhering to convert liquid form from solid-state form, i.e., it is so-called to be melted into water.It is solidifying in high-tension bus-bar heat release rate
Gu will congeal into ice in the case of slow-footed, so on high-voltage line, typically have the phenomenon of icing.Cause because surface freezes
Fracture that overhead transmission line is overweight, or steel tower and line bar collapse, and causes large area blackout, 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.
It is harshness due to environment, at present, the domestic deicing to cable and steel tower, taking means manually or mechanically more, this
Not only efficiency is low to plant 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 for 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 parts such as high tension cable, steel tower, communication line,
Ice coating resistance paint composition can play its optimal ice-covering-proof effect, reduce the icing of adhesive force and surface of the ice to substrate surface
Amount, recycles wind and elemental effect to make ice be easily separated from substrate surface.Anti-icing paint not only has to metallic matrix very well
Adhesion, higher heat conductivity, it is often more important that its superficies has low surface tension, high hydrophobic, hates ice, can be most
Reduce the adhesive force of water sum in limits ground so as to easily come off, so as to reach the purpose for preventing 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 part 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 good adhesion, higher heat conductivity to base material,
Its superficies has low surface tension, high hydrophobic, hates ice, can reduce the adhesive force of water and ice to greatest extent so as to pole
It is easy to fall off, while intermediate layer can ionize out the attachment that ion postpones ice in adverse circumstances, solidifying ice and deicing is prevented so as to reach
Purpose.
Above-mentioned two methods are simple in engineering, convenience is controlled, cost is relatively low, and using effect is good, but, still
Cannot 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 up of the insulating barrier of internal high-voltage cable and surface, and the surface of insulating layer of high tension cable is arranged
Carbon fiber heating line, arranges some carbon fibers inside the insulating barrier of carbon fiber heating line.The invention is by high tension cable surface
Arrange can heating power carbon fiber heating line, convert electrical energy into heat using carbon fiber, not only need increase carbon fiber send out
The heating plant of hot line, additionally consumes substantial amounts of electric energy, and increased a series of electric supply installations, also is difficult to operation in practice.
Still more, if heat supply is not enough, the problem of snow melt icing is there is also in the same old way.
Chinese utility model patent CN201540767U discloses a kind of anti-icing, and it includes cable sheet
Body, with except icefall on the outside of described cable body, except the gap for having 5～15mm between icefall and cable body.The practicality
It is new to have except icefall in original high-voltage cable periphery, and except there being gap between icefall and cable, when into the gap
When being filled with gases at high pressure, except icefall expands, can will be attached to shake except the accumulated snow on icefall surface, so as to play a part of deicing.
Although the utility model simple structure, low cost of manufacture, need to increase a series of aerating device in running, operate
Get up and can produce many troubles, 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, screen 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 packed layer between core and cable outer layer, the packed 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 stability is improved, is prolonged
Long cable service life, but, cable consumption heating can't be prevented, and then causes snow melt and ice formation issues under low temperature.
In sum, currently, high voltage overhead line is primarily present following problem：
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, as high voltage transmission line route consumption is generated heat, cause insulating barrier aging impaired.
3rd, the cable surface coating waterproof layer that foregoing invention is proposed, slows down icing；Increase carbon fiber heating line ice-melt；Outer layer
Parcel uses high pressure gas expansion deicing except icefall；The measures such as single phase-change material layers radiating, cannot solve snowy day upward adverse flow of QI pressure
Cable causes surface snow melt and the fundamental issue for freezing because of radiating.
When the 4th, using phase-change temperature control formula high tension cable, due to only with paraffinic base microcapsule+polyolefinic phase-change material, leading
Cause it is relatively low as effective phase-change material content, its quality not as good as 80%, and as fixation material polyolefinic plasticity
Differ greatly with paraffin, be unfavorable for obtaining uniform phase transformation Rotating fields.
The content of the invention
It is an object of the invention to provide power transmission cable with icing protection and preparation method thereof, it makes power transmission cable exist
Will not freeze after snow melt during high voltage power transmission, so as to avoiding the danger of artificial deicing and improving 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 barrier, the cable shield being sheathed on outside insulating barrier 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 with the middle of insulating barrier and cable shield,
Described icing protection layer includes the low temperature composite phase-change material of the high temperature composite phase-change material layer and outer layer of internal layer
The bed of material.
Used as preferred embodiment, the high temperature composite phase-change material layer is mainly woven by high oil-absorbing non-woven fibre
Band, and absorption on high oil-absorbing non-woven fibre braid over braid high temperature composite phase-change material composition.
Further, described high oil-absorbing non-woven fibre is TPO high oil-absorbing non-woven fibre, polyacrylate
One or more in class high oil-absorbing non-woven fibre or polyurethaness high oil-absorbing non-woven fibre are mixed according to arbitrary proportion
The mixture for closing；
Described high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, fatty acid
One kind or two of salt, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid apoplexy due to endogenous wind
The mixture mixed according to arbitrary proportion more than kind.
Used as preferred embodiment, the low temperature composite phase-change material layer is mainly woven by high-hydroscopicity non-woven fibre
Band, and absorption on water absorption non-woven fibre braid over braid absorption low temperature composite phase-change material composition.
Further, described high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre or natural height
One or more mixture mixed according to arbitrary proportion in molecule class high-hydroscopicity non-woven fibre.
Further, described 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 absorption non-woven fibre；
Described 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, shitosan high-hydroscopicity nonwoven
Fiber or heparin high-hydroscopicity non-woven fibre.
Further, described low temperature composite phase-change material be water, methanol, ethanol, acetone, dioxy six surround, ethylene glycol, two
One or more in methyl sulfoxide, dimethylformamide, tetrahydrofuran or Polyethylene Glycol are according to arbitrary proportion mixing
Into mixture.
Used as preferred embodiment, described power transmission cable inner core is fine copper, is preferably chosen silver-plated copper.
Used as preferred embodiment, the insulating barrier is polyolefin insulation layer.
Used as preferred embodiment, the cable shield is the webbed metal wire of braiding or metallic film.
Used 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 barrier,
2nd, high temperature composite phase-change material layer and low temperature composite phase-change material layer are pricked outside the insulating barrier successively,
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 extrudes and envelopes cable shield for 90 DEG C～100 DEG C in temperature, forms the coat layer of power cable.
Further, when wrapping up insulating barrier in step one, make to enter under 1.8MPa～2.0MPa in the resin material of insulating barrier
1～2 minute vapor crosslinking of row, forms insulating barrier.
Further, the high temperature composite phase-change material layer of step 2 is prepared as follows and forms：First in insulation
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
In temperature is the high temperature composite phase-change material for immersing molten condition in the state of 20 DEG C～90 DEG C so as to fully absorb；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 as follows and forms：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 so as to fully absorbed；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 water-absorbing resin is a kind of emerging functional high-polymer absorbent material, is super absorbent resin series of products
The new application for constantly expanding in actual applications, and keep performance and gel strong by its good water suction
Degree, can effectively extend the freezing time.Macromolecule water uptake resin is the high polymer being made up of three-dimensional space network, is met
There is electrolysis to after water immediately, the ion and water for dissociating into the ion of positively charged and negative electricity, this positively charged and negative electricity has strongly
Affinity interaction, can even thousands of times of rapid absorptance itself tuple Radix Achyranthis Bidentatae 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 up of several monomers, intermolecular with three-dimensional cross-linked netted knot
Structure, inside have certain hole, 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 swelling and insoluble, oiliness molecule bag
It is rolled in macromolecular network structure, protects the purpose of oil so as to reach 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 in phase transition process, from environment or release heat in environment, and the temperature of material
Degree approximate constant.Using this characteristic of material, thermal energy storage and temperature adjusting can be carried out.In order to avoid power transmission cable
The heat that line consumption is produced causes cable surface snow melt to freeze, and wraps up in that one layer of fusing point be higher, dissolving first in the external bread of cable conduction
The larger phase-change material of heat, then wraps up in its outer layer that fusing point is relatively low, the phase-change material that heat of solution is larger again, when internal layer phase transformation material
When material absorbs the heat that cable consumption is produced, heat exchange is carried out with low temperature of the outer layer compared with the phase-change material accumulation of low melting point, hindered
Only heat is escaped, and such that it is able to avoid causing cable surface temperature too high due to heating, produces snow melt ice formation issues.
In order to fix above two phase-change material, the present invention is respectively adopted high oil-absorbing resin and macromolecule water absorbent material is made
For the fixative of ectonexine phase-change material, reduce its mobility and avoid which from escaping in use.
The invention has the beneficial effects as follows：
1st, the present invention proposes a kind of reasonable in design of the 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 absorbable 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 in lower temperature state, it is to avoid power transmission cable
Outer surface causes snow melt to freeze due to inner core heating, while cable material can be prevented cold short, extends cable covering and insulation
The life-span of layer；When temperature is higher, the high temperature composite phase-change material layer available buffer of internal layer is 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, with good heat conduction
Performance, can help radiate, and due to its synergism, be also beneficial to extend the life-span of cable covering and insulating barrier.
2nd, the present invention is respectively adopted high oil-absorbing resin and macromolecule water absorbent material as the fixation of ectonexine phase-change material
Agent, reduces its mobility and avoids which from escaping in use.
3rd, it is of the invention during high-absorbable non-woven fibre absorbs phase-change material, using the side processed under vacuum condition
Method, is on the one hand conducive to excluding the air in non-woven fibre hole, while can improve high absorbent fiber absorbs phase-change material
Speed.
4th, the present invention adopts slightly above phase transformation material during high oil absorption non-woven fibre absorbs high temperature composite phase-change material
The temperature of material fusing point, can remain which is in fluid state, be conducive to absorption of the non-woven fibre to which；When absorption process it is complete
Into afterwards, being quickly cooled to below fusing point, be conducive to making its coagulation forming.
Description of the drawings
Fig. 1 is the power transmission cable cross section structure schematic diagram of the present invention.
Wherein description of reference numerals is as follows, 1- power transmission cable inner cores, 2- insulating barriers, 3- icing protection layers, and 31- high temperature is multiple
Close phase-change material layers, 32- low temperature composite phase-change material layers, 4- cable shields, 5- the coat layer of power cable.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and 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) specific 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, it is sheathed on transmission of electricity
Insulating barrier 2, the cable shield 4 being sheathed on outside insulating barrier 2 outside cable inner core 1, and the cable that is sheathed on outside cable shield 4
Restrictive coating 5, it is characterised in that：Icing protection layer 3 is additionally provided with the middle of insulating barrier 2 and cable shield 4,
Described icing protection layer 3 includes the high temperature composite phase-change material layer 31 and the low temperature composite phase-change of outer layer of internal layer
Material layer 32.
Used as preferred embodiment, the high temperature composite phase-change material layer 31 is mainly woven by high oil-absorbing non-woven fibre
Band, and absorption on high oil-absorbing non-woven fibre braid over braid high temperature composite phase-change material composition.
Further, described high oil-absorbing non-woven fibre is TPO high oil-absorbing non-woven fibre, polyacrylate
One or more in class high oil-absorbing non-woven fibre or polyurethaness high oil-absorbing non-woven fibre are mixed according to arbitrary proportion
The mixture for closing；
Described high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, fatty acid
One kind or two of salt, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid apoplexy due to endogenous wind
The mixture mixed according to arbitrary proportion more than kind.
Used as preferred embodiment, the low temperature composite phase-change material layer 32 is mainly woven by high-hydroscopicity non-woven fibre
Band, and absorption on water absorption non-woven fibre braid over braid absorption low temperature composite phase-change material composition.
Further, described high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre or natural height
One or more mixture mixed according to arbitrary proportion in molecule class high-hydroscopicity non-woven fibre.
Further, described 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 absorption non-woven fibre；
Described 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, shitosan high-hydroscopicity nonwoven
Fiber or heparin high-hydroscopicity non-woven fibre.
Further, described low temperature composite phase-change material be water, methanol, ethanol, acetone, dioxy six surround, ethylene glycol, two
One or more in methyl sulfoxide, dimethylformamide, tetrahydrofuran or Polyethylene Glycol are according to arbitrary proportion mixing
Into mixture.
Used as preferred embodiment, described power transmission cable inner core 1 is fine copper, is preferably chosen silver-plated copper.
Used as preferred embodiment, the insulating barrier 2 is polyolefin insulation layer.
Used as preferred embodiment, the cable shield 4 is the webbed metal wire of braiding or metallic film.
Used 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 barrier 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 on the outer bundle successively of insulating barrier 2,
3rd, the cable shield 4 on 32 outer bundle of low temperature composite phase-change material layer, by the material of the coat layer of power cable 5, with thickness
3mm～4mm extrudes and envelopes cable shield 4 for 90 DEG C～100 DEG C in temperature, forms the coat layer of power cable 5.
Further, when wrapping up insulating barrier 2 in step one, make in the resin material of insulating barrier 2 under 1.8MPa～2.0MPa
1～2 minute vapor crosslinking is carried out, insulating barrier 2 is formed.
Further, the high temperature composite phase-change material layer 31 of step 2 is prepared as follows and forms：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
In under sky in temperature being the high temperature composite phase-change material for immersing molten condition in the state of 20 DEG C～90 DEG C so as to fully absorb；
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 as follows and forms：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
Dimension braid over braid is immersed in low temperature composite phase-change material solution under vacuum under room temperature state so as to fully absorbed；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, make internal dielectric resin carry out 1 minute steam under 1.8MPa
Crosslinking, forms insulating barrier.
2) upper polypropylene high oil-absorbing non-woven fibre braid over braid is pricked using winding method, which is immersed under vacuum 70 DEG C of paraffin
In so as to fully absorb.
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, which is immersed under vacuum and is contained
In 50% glycol water low temperature composite phase-change material solution of 0.3% disodium hydrogen phosphate so as to fully absorb.
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, make internal dielectric resin carry out 1 minute steam under 1.8MPa
Crosslinking, forms insulating barrier.
2) the cellulose high oil-absorbing non-woven fibre of upper acrylamide and butyl methacrylate grafting is pricked using winding method
Braid over braid, which is immersed in 70 DEG C of polyethylene glycol-800s under vacuum so as to fully absorb.
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, which is immersed under vacuum and is contained
In the aqueous solution of 0.25% disodium hydrogen phosphate, 20% ethylene glycol and 20% diethylene glycol so as to fully absorb.
5) squeeze and remove unnecessary above-mentioned aqueous solution.
6) upper iron sheet steel wire screen 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, make internal dielectric resin carry out 1 minute steam under 1.8MPa
Crosslinking, forms insulating barrier.
2) upper methacrylate ester copolymer high oil-absorbing non-woven fibre braid over braid is pricked using winding method, by which in vacuum
In 45 DEG C of lauric acids of lower immersion so as to fully absorb.
3) squeeze and remove unnecessary lauric acid, 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 which under vacuum
In 10% glycol water of the immersion containing 0.2% disodium hydrogen phosphate so as to fully absorb.
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, make internal dielectric resin carry out 1 minute steam under 1.8MPa
Crosslinking, forms insulating barrier.
2) upper polrvinyl chloride/polystyrene copolymerization high oil-absorbing non-woven fibre braid over braid is pricked using winding method, by which in true
In 60 DEG C of octadecanol of empty lower immersion so as to fully absorb.
3) squeeze and remove unnecessary octadecanol, and be cooled to room temperature.
4) upper polyacrylic acid high water absorptive non-woven fibre braid over braid is pricked using winding method, which is immersed under vacuum 5% 2
In first sulfoxide aqueous solution so as to fully absorb.
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 barrier (2) of electrical cables inner core (1), it is sheathed on the outer cable shield (4) of insulating barrier (2), and is sheathed on cable shield
Layer (4) the coat layer of power cable (5) outward, it is characterised in that：It is additionally provided with the middle of insulating barrier (2) and cable shield (4) anti-freeze
Functional layer (3),
Described icing protection layer (3) includes that the low temperature of high temperature composite phase-change material layer (31) and outer layer of internal layer is combined
Phase-change material layers (32).
Used as preferred embodiment, high temperature composite phase-change material layer (31) are mainly compiled by high oil-absorbing non-woven fibre
The high temperature composite phase-change material composition of ribbon and absorption on high oil-absorbing non-woven fibre braid over braid.
Described high oil-absorbing non-woven fibre is TPO high oil-absorbing non-woven fibre.
Described high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons high temperature composite phase-change material.
Low temperature composite phase-change material layer (32) are mainly by high-hydroscopicity non-woven fibre braid over braid and absorption in water absorption
Absorption low temperature composite phase-change material composition on non-woven fibre braid over braid.
Described high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre.
Described low temperature composite phase-change material is methanol aqueous solution.
Described power transmission cable inner core (1) is fine copper, is preferably chosen silver-plated copper.
Described insulating barrier (2) are polyolefin insulation layer.
Described cable shield (4) are the webbed metal wire of braiding or metallic film.
Described the coat layer of power cable (5) are 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 barrier (2),
2nd, upper high temperature composite phase-change material layer (31) and low temperature composite phase-change material layer is pricked outward successively in insulating barrier (2)
(32),
3rd, upper cable shield (4) is pricked using winding method outward in low temperature composite phase-change material layer (32), by the coat layer of power cable
(5) material, extrudes and envelopes cable shield (4) with thickness 4mm for 100 DEG C in temperature, form the coat layer of power cable (5).
When wrapping up insulating barrier (2) in step one, make to carry out 1 minute steam under 1.8MPa in the resin material of insulating barrier (2)
Crosslinking, forms insulating barrier (2).
High temperature composite phase-change material layer (31) of step 2 is prepared as follows and forms：First in insulating barrier (2)
Upper employing winding method pricks upper high oil-absorbing non-woven fibre braid over braid；Then by high oil-absorbing non-woven fibre braid over braid under vacuum
During temperature is the high temperature composite phase-change material for immerse in the state of 20 DEG C～90 DEG C molten condition so as to fully absorb；Finally squeeze
Unnecessary high temperature composite phase-change material is removed, and is cooled to room temperature.
Low temperature composite phase-change material layer (32) of step 2 is prepared as follows and forms：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 so as to fully absorbed；Finally squeeze go it is unnecessary
Low temperature composite phase-change material.
Embodiment 6
It is unlike the embodiments above,
Described high oil-absorbing non-woven fibre is polyacrylate high oil-absorbing non-woven fibre；
Described high temperature composite phase-change material is higher alcohols high temperature composite phase-change material.
Described high-hydroscopicity non-woven fibre is synthesized polymer species natural polymer class high-hydroscopicity non-woven fibre.
Described 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；
Described low temperature composite phase-change material is dimethyl sulphoxide aqueous solution.
Embodiment 7
It is unlike the embodiments above,
Described high oil-absorbing non-woven fibre is polyurethaness high oil-absorbing non-woven fibre；
Described high temperature composite phase-change material is aromatic ketone type high temp composite phase-change material.
Described high-hydroscopicity non-woven fibre is synthesized polymer species high-hydroscopicity non-woven fibre.
Described 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.
Described low temperature composite phase-change material is dimethylformamide in water.
Embodiment 8
It is unlike the embodiments above,
Described high oil-absorbing non-woven fibre is polyurethaness high oil-absorbing non-woven fibre；
Described high temperature composite phase-change material is freon type high temp composite phase-change material.
Described low temperature composite phase-change material is Aqueous Solutions of Polyethylene Glycol.
Embodiment 9
It is unlike the embodiments above,
Described high temperature composite phase-change material is polyhydroxy carbonic acid type high temp composite phase-change material.
Described low temperature composite phase-change material surrounds aqueous solution for dioxy six.
Embodiment 10
It is unlike the embodiments above,
Described high temperature composite phase-change material is higher alcohols high temperature composite phase-change material.
Described 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, 12h is kept, structure is as shown in the table.
The thickness of the insulating barrier of above-described embodiment is 4.5mm, and the thickness of cable covering is 3.8mm.Their use longevity
Fate is according to as shown in the table.
Claims (10)
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), it is sheathed on transmission of electricity
The outer insulating barrier (2) of cable inner core (1), it is sheathed on the outer cable shield (4) of insulating barrier (2) and is sheathed on cable shield
(4) the coat layer of power cable (5) outward, it is characterised in that：Anti-freeze work(is additionally provided with the middle of insulating barrier (2) and cable shield (4)
Ergosphere (3),
Described icing protection layer (3) includes the low temperature composite phase-change of high temperature composite phase-change material layer (31) and outer layer of internal layer
Material layer (32).
2. a kind of power transmission cable with icing protection according to claim 1, it is characterised in that：The high temperature is combined
Phase-change material layers (31) are mainly by high oil-absorbing non-woven fibre braid over braid and absorption on high oil-absorbing non-woven fibre braid over braid
High temperature composite phase-change material is constituted.
3. a kind of power transmission cable with icing protection according to claim 2, it is characterised in that：Described high oil absorption
Property non-woven fibre be TPO high oil-absorbing non-woven fibre, polyacrylate high oil-absorbing non-woven fibre or polyurethaness
One or more mixture mixed according to arbitrary proportion in high oil-absorbing non-woven fibre；
Described high temperature composite phase-change material is paraffin class higher aliphatic hydro carbons, fatty acid, fatty acid ester, soap
Class, higher alcohols, arene, fragrant ketone, amide-type, freon class or polyhydroxy carbonic acid apoplexy due to endogenous wind one or two
The mixture for mixing according to arbitrary proportion above.
4. a kind of power transmission cable with icing protection according to claim 1, it is characterised in that：The low temperature is combined
The main suction by high-hydroscopicity non-woven fibre braid over braid and absorption on water absorption non-woven fibre braid over braid of phase-change material layers (32)
Receive low temperature composite phase-change material composition.
5. a kind of power transmission cable with icing protection according to claim 4, it is characterised in that：Described high water absorption
Property non-woven fibre be in synthesized polymer species high-hydroscopicity non-woven fibre or natural polymer subclass high-hydroscopicity non-woven fibre one
Plant or the two or more mixture mixed according to arbitrary proportion；
Described 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；
Described natural polymer subclass high-hydroscopicity non-woven fibre is cellulose-based high-hydroscopicity non-woven fibre, protein system is high inhales
Aqueouss non-woven fibre, pectin high-hydroscopicity non-woven fibre, alginic acid high-hydroscopicity non-woven fibre, shitosan high-hydroscopicity nonwoven are fine
Dimension, or heparin high-hydroscopicity non-woven fibre；
Described low temperature composite phase-change material is water, methanol, ethanol, acetone, dioxy six are surrounded, ethylene glycol, dimethyl sulfoxide, diformazan
One or more mixture mixed according to arbitrary proportion in base Methanamide, tetrahydrofuran or Polyethylene Glycol.
6. a kind of power transmission cable with icing protection according to claim 1, it is characterised in that：Described transmission of electricity electricity
Cable inner core (1) is fine copper or silver-plated copper；
Described insulating barrier (2) are polyolefin insulation layer；
Described cable shield (4) are the webbed metal wire of braiding or metallic film；
Described the coat layer of power cable (5) are low smoke and zero halogen pe sheath.
7. a kind of preparation method of the power transmission cable with icing protection, it is characterised in that：Comprise the steps：
First, in power transmission cable inner core (1) outer wrapping insulating barrier (2),
2nd, upper high temperature composite phase-change material layer (31) and low temperature composite phase-change material layer (32) is pricked outward successively in insulating barrier (2),
3rd, after low temperature composite phase-change material layer (32) pricks cable shield (4) outward, by the material of the coat layer of power cable (5),
With thickness as 3mm～4mm extrudes and envelopes cable shield (4) in temperature for 90 DEG C～100 DEG C, forms the coat layer of power cable
(5)。
8. the preparation method of a kind of power transmission cable with icing protection according to claim 7, it is characterised in that：Step
When wrapping up insulating barrier (2) in rapid one, the resin material of insulating barrier (2) is made to carry out 1～2 minute steam under 1.8MPa～2.0MPa
Crosslinking, forms insulating barrier (2).
9. the preparation method of a kind of power transmission cable with icing protection according to claim 7, it is characterised in that：Step
Rapid two high temperature composite phase-change material layer (31) is prepared as follows and forms：First in insulating barrier (2) periphery using volume
Winding pricks upper high oil-absorbing non-woven fibre braid over braid；Then make high oil-absorbing non-woven fibre braid over braid under vacuum temperature be 20
DEG C～90 DEG C in the state of immerse molten condition high temperature composite phase-change material in so as to fully absorb；Finally squeeze go it is unnecessary
High temperature composite phase-change material, and it is cooled to room temperature；
Low temperature composite phase-change material layer (32) of step 2 is prepared as follows and forms：First in high temperature composite phase change material
Upper high-hydroscopicity non-woven fibre braid over braid is pricked using winding method in the bed of material (31) periphery；Then make high-hydroscopicity non-woven fibre braid over braid
Immerse in low temperature composite phase-change material solution under room temperature state under vacuum so as to fully absorb；Finally squeeze go it is unnecessary low
Temperature composite phase change material.
10. the preparation method of a kind of power transmission cable with icing protection according to claim 7, it is characterised in that：
Cable shield (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 |
| CN108922684A (en) * | 2018-06-29 | 2018-11-30 | 国网山东省电力公司惠民县供电公司 | A kind of cable with icing protection |
| 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 |
| CN110379567A (en) * | 2019-07-31 | 2019-10-25 | 福建礼恩科技有限公司 | A kind of preparation method of constant temperature cable |
| CN110584877A (en) * | 2019-10-15 | 2019-12-20 | 南京泰立瑞信息科技有限公司 | Passive constant temperature system and constant temperature preparation device thereof |
| CN110596838A (en) * | 2019-10-30 | 2019-12-20 | 江苏华脉光电科技有限公司 | Anti-ice anti-aging self-supporting optical cable |
| CN110890170A (en) * | 2019-11-11 | 2020-03-17 | 徐州迪沃通讯工程有限公司 | Environment-friendly cable with strong brittleness resistance for low-temperature environment |
| CN111313053A (en) * | 2018-12-11 | 2020-06-19 | 中国科学院大连化学物理研究所 | Aluminum-air battery heat exchange device for communication base station |
| 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 |
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| 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 |
| CN111313053A (en) * | 2018-12-11 | 2020-06-19 | 中国科学院大连化学物理研究所 | Aluminum-air battery heat exchange device for communication base station |
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| CN110584877A (en) * | 2019-10-15 | 2019-12-20 | 南京泰立瑞信息科技有限公司 | Passive constant temperature system and constant temperature preparation device thereof |
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| CN110890170A (en) * | 2019-11-11 | 2020-03-17 | 徐州迪沃通讯工程有限公司 | 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 |
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