CN107293382A - With anti-ice-flashing, the insulator of pollution flashover coating and preparation method thereof - Google Patents
With anti-ice-flashing, the insulator of pollution flashover coating and preparation method thereof Download PDFInfo
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- CN107293382A CN107293382A CN201710681965.5A CN201710681965A CN107293382A CN 107293382 A CN107293382 A CN 107293382A CN 201710681965 A CN201710681965 A CN 201710681965A CN 107293382 A CN107293382 A CN 107293382A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/52—Insulators or insulating bodies characterised by their form having cleaning devices
- H01B17/525—Self-cleaning, e.g. by shape or disposition of screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/54—Insulators or insulating bodies characterised by their form having heating or cooling devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
There is anti-ice-flashing, insulator of pollution flashover coating and preparation method thereof the invention discloses a kind of, belong to power network and prevent and reduce natural disasters technical field.Described insulator sidewall surfaces are disposed with bottom, middle dense insulating layer and surface hydrophobicity antireflection layer from inside to outside；Described bottom is to be provided with lower conversion filler in the two-layer composite being made up of the substrate enhancement layer of inner side and the spectral conversion layer in outside, spectral conversion layer.Insulator structure novel and unique of the present invention, advantages of simple is sequentially depositing bottom, middle dense insulating layer and surface hydrophobicity antireflection layer on the insulator, described surface hydrophobicity antireflection layer can anti-soil, while increasing the amount of incident of sunshine；Spectral conversion layer is generated heat by spectrum conversion, for ice-melt；Middle dense insulating layer is used for the integral insulation for ensureing coating, can effectively ensure that anti-ice-flashing, the pollution flashover function of insulator, and its preparation method is simple, easily production, and cost is low, and easy to use, effect is good, is the innovation on insulator.
Description
Technical field
There is anti-ice-flashing, insulator of pollution flashover coating and preparation method thereof the present invention relates to a kind of, belong to power network and take precautions against natural calamities and subtract
Calamity technical field.
Background technology
In power supply, ice dodges, pollution flashover seriously reduces power supply quality.At present, it is maximally effective reduction pollution flashover, ice dodge method be
Insulator surface sets coating, i.e., hydrophobicity and the coating of ice will be hated to be coated in insulator surface, by reduction dirt, water etc. with
The adhesive force of insulator come prevent dirt adhere to and freeze, compared with other method, this method is simple and easy to apply in engineering, cost
It is relatively low.But existing ice-phobic coating can not fundamentally anti-stagnant ice, dirty formation, and only shined upon and foot in enough
Could be come into force at enough temperature, it is low in temperature, radiate it is weaker in the case of, water smoke constantly can on the insulator adhere to, freeze,
Thicken, anti-icing anti-fouling effect is poor.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide it is a kind of have anti-ice-flashing, the insulator of pollution flashover coating and
Its preparation method, the insulator even in temperature it is relatively low, shine upon it is weaker in the case of, also can effectively anti-stagnant ice dodge, it is dirty
Dodge.
To achieve these goals, the technical solution adopted in the present invention is：
Insulator with anti-ice-flashing, pollution flashover coating, including insulator, described insulator sidewall surfaces from inside to outside according to
It is secondary to be provided with bottom, middle dense insulating layer and surface hydrophobicity antireflection layer；Described bottom is the substrate enhancement layer by inner side
Lower conversion filler is provided with the two-layer composite constituted with the spectral conversion layer in outside, spectral conversion layer.
Described lower conversion filler is in non-uniform Distribution in spectral conversion layer, and content gradually rises from outside to inside；It is described
Lower conversion filler be the nanometer containing rare earth element under change powder.
Described bottom is made up of multiple interval endless belts for being distributed in insulator sidewall surfaces of shape that go to upper and lower, in
Between dense insulating layer filling two-by-two endless belt formed gap in；Set between described insulator sidewall surfaces and substrate enhancement layer
It is equipped with reflection and heat insulation layer.
Described surface hydrophobicity antireflection layer is made up of silica or silicon nitride material, and refractive index is 1.3-1.6；Described
Middle dense insulating layer is made up of dense oxide silicon, compact silicon nitride or fine and close silicon oxy-nitride material, and refractive index is 1.7-2.0；
The refractive index of described spectral conversion layer is 2.0-2.4；Described substrate enhancement layer is made up of silica material.
The side of described insulator is provided with refractive body, side where the refractive body as backlight side, refractive body be with
Specular reflection surface and parallel with insulator central shaft some reflecting poles or strip reflector, two-by-two reflecting pole or bar
Have between shape reflector and allow that ice and snow passes through to prevent its gap accumulated；Described refractive body can by connecting pole with absolutely
Edge is connected.
It is a kind of that there is anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, comprise the following steps：
(1) bottom is deposited
Bottom is deposited using solwution method：Substrate enhancement layer film forming solution is prepared first, is coated in insulator sidewall surfaces,
Sintering processes, form substrate enhancement layer；Spectral conversion layer film forming solution is prepared again, is coated on substrate enhancement layer, sintering processes,
Spectral conversion layer is formed, while obtaining complete bottom；
(2) dense insulating layer in the middle of depositing
Middle dense insulating layer is deposited using dry-oxygen oxidation method；
(3) the hydrophobic antireflection layer of deposition surface
Using the hydrophobic antireflection layer of solwution method deposition surface：Surface hydrophobicity antireflection layer film forming solution is prepared first, then
Surface hydrophobicity antireflection layer film forming solution is coated on middle dense insulating layer, re-sintered, surface hydrophobicity antireflection layer is formed.
It is additionally included in before deposition substrate enhancement layer, insulator sidewall surfaces is pre-processed, specific method is：It is first
First, using blasting treatment insulator sidewall surfaces, then insulator sidewall surfaces, the indigo plant of flame are cleaned with 900-1100 DEG C of flame
Color part comes close to or in contact with insulator sidewall surfaces, and insulator sidewall surfaces are finally cleaned with pure water.
It is additionally included in after being pre-processed to insulator sidewall surfaces, before deposition substrate enhancement layer, in insulator side wall
Reflection and heat insulation layer is deposited on surface.
The specific method of described solwution method deposition bottom is：Substrate enhancement layer film forming solution is prepared first, is coated in absolutely
In edge sidewall surfaces, then dry and form stable substrate enhancement layer；Spectral conversion layer film forming solution is prepared again, adds lower turn
Filler is changed, is stirred, is coated on substrate enhancement layer, lower conversion filler natural subsidence 20-50min is allowed, after sedimentation terminates, stood
It is sintered, the spectral conversion layer containing lower conversion filler is formed, while obtaining complete bottom.
The specific method of dense insulating layer is in the middle of described dry-oxygen oxidation method deposition：First in the insulator of deposition bottom
One layer of non-crystalline silicon of upper sputtering, reheats oxidation, forms middle dense insulating layer.
It is additionally included in be formed after surface hydrophobicity antireflection layer, installs additional be connected with connecting pole, connecting pole instead on the insulator
Side where body of light, the refractive body is as backlight side, and refractive body is with specular reflection surface and equal with insulator central shaft
Capable some reflecting poles or strip reflector, have between reflecting pole or strip reflector allow that ice and snow passes through to prevent two-by-two
Its gap accumulated.
Insulator structure novel and unique of the present invention, advantages of simple is sequentially depositing bottom, middle fine and close insulation on the insulator
Layer and surface hydrophobicity antireflection layer, described surface hydrophobicity antireflection layer can anti-soil, while increasing the amount of incident of sunshine；Bottom
The spectral conversion layer of layer is generated heat by spectrum conversion, for ice-melt；Middle dense insulating layer is used to ensure the overall exhausted of coating
Edge, can effectively ensure that anti-ice-flashing, the pollution flashover function of insulator, and its preparation method is simple, easily production, and cost is low, uses
Convenient, effect is good, is the innovation on insulator.
Brief description of the drawings
Fig. 1 is the sectional view of insulator of the present invention.In figure, 1 is insulator, and 2 be bottom, and 3 be middle dense insulating layer, 4
For surface hydrophobicity antireflection layer.
Fig. 2 is the front view of insulator of the present invention.In figure, 1 is insulator, and 2a is substrate enhancement layer, and 2b changes for spectrum
Layer, 3 be middle dense insulating layer, and 4 be surface hydrophobicity antireflection layer, and 5 be reflection and heat insulation layer, and 6 be refractive body, and 8 be connecting pole.
Fig. 3 is the top view of insulator of the present invention.In figure, 1 is insulator, and 6 be refractive body, and 7 be reflecting pole or bar two-by-two
Gap between shape reflector, 8 be connecting pole.
Fig. 4 is leakage current path schematic diagram.In figure, dotted line is leakage current path.
Embodiment
The embodiment to the present invention is described in further detail with reference to embodiments.What is be not particularly illustrated
In the case of, the method applied in the present invention is this area routine techniques, therefore is not described in detail.
Embodiment 1
Provided by Fig. 1-3, the present invention includes insulator, the described sidewall surfaces of insulator 1 are disposed with from inside to outside
Bottom 2, middle dense insulating layer 3 and surface hydrophobicity antireflection layer 4；Described bottom 2 be by inner side substrate enhancement layer 2a and
Lower conversion filler is provided with the two-layer composite that the spectral conversion layer 2b in outside is constituted, spectral conversion layer 2b.
The spectral conversion layer 2b effects of bottom 2 are generated heat by spectrum conversion, for ice-melt, therefore to ensure using effect
Really, the present invention changes filler under being mixed in the spectral conversion layer of bottom 2, so that the sunshine being irradiated on coating occurs lower turn
Change, it will be seen that light, ultraviolet etc. change into infrared ray, using thermo-effect of infrared radiation, melt the ice sheet of winter attachment on the insulator
Melt, the water of melting slides in hydrophobic surface, the purpose that icing, anti-stagnant ice dodge is eliminated so as to reach.Meanwhile, lower transition material plus
Enter, spectral conversion layer 2b overall refractive index can be improved, this is reflected for forming spectral conversion layer/three layers of intermediate layer/superficial layer
Rate reduction structure, so that it is favourable to promote light to reach spectral conversion layer.Spectral conversion layer 2b of the present invention basic material is used
Silica etc. has the material compared with low-refraction, and can be put forward the overall refractive index of this layer by adding lower conversion filler wherein
Up to aspiration level.It is preferred that, spectral conversion layer refractive index is more than 2.0, such as between 2.0-2.4, to ensure that this layer is reflected
Rate is higher than the refractive index of middle dense insulating layer and surface hydrophobicity antireflection layer.
Described lower conversion filler be the nanometer containing rare earth element under change powder.Such as europium doped (Eu3+), cerium (Ce3 +) etc. rare earth element powder, such as (NaYF4：Yb3+, Er3+)、(NaYF4：Yb3+, Ce3+) etc..The filler is a kind of phosphor
Material, can be converted into infrared light, so as to produce significant fuel factor by the sunshine of the wave band such as ultraviolet, visible of arrival.Lower turn
Change the preferred 0.5-15% of content (mass fraction) of filler.The addition of above-mentioned filler, it is possible to increase the refractive index of spectral conversion layer.
The gross thickness of described bottom 2 is between 150-2000nm.
Substrate enhancement layer 2a is free of lower conversion filler, because the part not still start-up portion of bottom 2, is also whole
The start-up portion of individual coating, is conducive to forming good material structure during bottom film forming, so as to improve the whole of bottom 2 without filler
Weight, and improve the adhesion of whole coating and the sidewall surfaces of insulator 1.Substrate enhancement layer 2a has relatively thin thickness, example
Such as 5-50nm, the adverse effect incident to light is avoided to try one's best.
It is preferred that, described lower conversion filler is in non-uniform Distribution in spectral conversion layer 2b, and content is gradually from outside to inside
Rise.Structure is incremented by using above-mentioned filler, partly in order to obtaining good spectral conversion layer/centre dense insulating layer interface
Characteristic, the filler for preventing the interface excessive causes the interfacial characteristics in spectral conversion layer/intermediate layer to deteriorate, and causes inter-layer bonding force
Decline, on the other hand, be incremented by also for the refractive index gradient formed from the interface to spectral conversion layer direction, so that reaching
The sunshine of spectral conversion layer/interlayer interface smoothly enters spectral conversion layer.
It is preferred that, described bottom 2 goes to upper and lower the endless belt that interval shape is distributed in the sidewall surfaces of insulator 1 by multiple
Constitute, middle dense insulating layer 3 is filled in the gap that endless belt is formed two-by-two, so as to reduce leakage current from wire via bottom
The probability of steel pin in the middle of insulator is reached, that is, anti-ice-flashing, the insulating properties of pollution flashover coating are further increased, as shown in figure 4, once
Electric discharge problem through middle steel pin occurs for the wire of insulator side wall, and conventional path is by relatively thin middle fine and close insulation
Layer 3, reaches insulating properties worst bottom 2 relatively, then covers the lower surface that insulator is reached after bottom downwards always, and via
The lower surface (due to reasons such as attachment ice and snow, the face insulating properties is equally poor) of the uncoated coating reaches middle steel pin, from
And trigger electric discharge, electric leakage (leakage path shown dashed lines).If bottom 2 is set into discontinuous banding, bottom
The insulating properties of layer 2 is greatly improved, and the possibility that leakage current is discharged by the layer (on direction in Fig. 4 vertically downward) is reduced, from
And improve the integral insulation performance of insulator.
On the whole, in anti-ice-flashing, the coating structure of pollution flashover insulator, spectral conversion layer 2b is added due to rare earth material
Enter, the decline of insulating properties is the most serious.In the middle of the present invention is set between surface hydrophobicity antireflection layer and spectral conversion layer
Dense insulating layer 3, to ensure coating insulation.Middle dense insulating layer 3 is fine and close high insulation material layer, anti-icing for ensureing
Sudden strain of a muscle, the integral insulation of the insulator coating of pollution flashover.In order to ensure that light is incident, the refractive index of middle dense insulating layer is in 1.7-
2.0 between.In order to optimize the incident effect of light and ensure enough insulating properties, the thickness of middle dense insulating layer is in 400-2500nm
Between.After middle dense insulating layer thickness is more than 2500nm, passing through for light can be influenceed, and easily cause film layer come off.
The high preferred dense oxide silicon of insulation material layer, compact silicon nitride, the contour insulation of fine and close silicon oxynitride and ripe material
Material, it is particularly preferred, using silicon nitride.The dielectric constant of silicon nitride is higher than silica, with more excellent insulating properties, and
And, silicon nitride has relatively high refractive index, typically between 1.8-2.0, can form spectral conversion layer/centre densification insulation
The structure that the refractive index that three layers of layer/surface hydrophobicity antireflection layer is successively decreased successively, is conducive to sunshine to reach bottom.
In order that the heat that spectral conversion layer, middle dense insulating layer are produced is efficiently transferred to surface as far as possible, it is used for
Ice-melt, the hot property to coating carries out following optimize：
Heat filling can be increased in middle dense insulating layer, the thermal conductivity of this layer is improved, be conducive to spectral conversion layer to produce
Raw heat reaches coating surface and carries out ice-melt.
Reflection and heat insulation layer 5 can be set between the sidewall surfaces of insulator 1 and substrate enhancement layer 2a, prevent heat to insulator
Body rather than conducted to surface；Reflected light can be further employed simultaneously.The material of reflection and heat insulation layer can be containing oxygen
Change silica of tungsten etc., the silica containing tungsten oxide has preferable heat-proof quality, and anti-with excellent infrared ray
Penetrate performance.
The function of surface hydrophobicity antireflection layer 4 has hydrophobic and antireflective.Using hydrophobic structure, reduction dust attachment is played,
Or make that the dust of attachment is more prone to by rain drop erosion, so as to reduce the pollution flashover problem of insulator.In order to reach hydrophobic effect
Really, the surface has surface roughness, for example, with surface crater, rat etc..
In order to reduce reflection of the sunshine in coating surface, it is ensured that in sunshine entrance coating as much as possible and most Zhongdao
Up to spectral conversion layer, superficial layer is made using the material of specific refractive index in the present invention, and the refractive index of the superficial layer is small as far as possible,
To approach the refractive index of air, it is preferred that this layer of refractive index is between 1.3-1.6, and thickness is adopted between 100-2000nm
With above-mentioned refractive index and thickness, it is ensured that with preferable anti-reflective effect, while hydrophobic performance is excellent.The present invention is using folding
Penetrate the silica of low-refraction of the rate less than 1.5；Or use body portion is porous, surface has dimpled silicon nitride, reflects it
Rate is used suitable for superficial layer.
The side of described insulator is provided with refractive body 6, side where the refractive body as backlight side, refractive body be with
Specular reflection surface and parallel with insulator central shaft some reflecting poles or strip reflector, two-by-two reflecting pole or bar
Have between shape reflector and allow that ice and snow passes through to prevent its gap 7 accumulated.Described refractive body can by connecting pole 8 with
Insulator is connected.The setting of refractive body ensure that the backlight finishing coat of insulator can still obtain illumination, effective ice-melt.Instead
Light beam or strip reflector, will not be reflective due to adding the back side compared to other continuous levels or the reflective structure of groove face structure
Structure and cause shady face accumulated snow, it is to avoid electrical property deteriorate, used suitable for open air.
In use, insulator is installed, be provided with refractive body one side be positioned over backlight side (for example downwards or to
Direction northwest).When shining upon, sunshine passes sequentially through surface hydrophobicity antireflection layer, middle dense insulating layer, reaches spectrum and turns
Layer is changed, spectral conversion layer is generated heat by spectrum conversion, make the ice sheet melting of winter attachment on the insulator, the water of melting is from table
Slid on the hydrophobic antireflection layer in face, the purpose that icing, anti-stagnant ice dodge is eliminated so as to reach.The setting of middle dense insulating layer can
Ensure the insulating properties of coating.
Embodiment 2
It is a kind of that there is anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, comprise the following steps：
(1) insulator is pre-processed
First, using the surface of blasting treatment insulator 1, then with 900-1100 DEG C of flame insulator is cleaned, flame
Blue portion comes close to or in contact with insulator sidewall surfaces, and insulator sidewall surfaces are finally cleaned with pure water.
Blasting treatment insulator sidewall surfaces, can remove the attachment that cleaning is removed that is difficult to of surface attachment, another
Purpose is that small concaveconvex structure is formed in insulator sidewall surfaces, the adhesion of increase follow-up coating and insulator.Then it is right
The injection Flame of Natural Gas cleaning of insulator sidewall surfaces, makes organic compound combustion volatilize, when flame is cleaned, the blue portion of flame is leaned on
Near or contact insulator sidewall surfaces, so as to reduce attachment of the carbon black in insulator sidewall surfaces as far as possible.Flame is cleaned
When, the ratio of adjustment natural gas and air (or oxygen) makes the blue-flame temperature of flame at 900-1100 DEG C or so, the temperature is enough
The organic matter of the burning overwhelming majority adheres to, and the temperature can anneal to insulator, reduces due to mechanical blasting treatment
The surface stress caused.It is preferred that, the blue portion of flame is close to without contacting insulator sidewall surfaces, for example, being separated by about 1-
4mm distances, can further reduce attachment of the carbon black in insulator sidewall surfaces.Finally, cleaned with pure water, remove insulator
The micro accessory substance formed after the organic compound combustion of sidewall surfaces.
(2) bottom is deposited
Bottom is deposited using solwution method：First prepare low viscosity (viscous in below 100mPaS) substrate enhancement layer into
Coating solution, is coated in insulator sidewall surfaces, and then rapid draing forms stable substrate enhancement layer 2a；Wherein, using low
Viscosity film forming solution, is that this is for coarse insulator sidewall surfaces knot for more uniform covering insulator sidewall surfaces
Structure is especially advantageous；
The spectral conversion layer film forming solution of high viscosity (coefficient of viscosity is in more than 400mPaS) is prepared again, adds lower change
Filler, stirs, and is coated on substrate enhancement layer, allows lower conversion filler natural subsidence 20-50min, after sedimentation terminates, immediately
It is sintered, is formed with the spectral conversion layer 2b of lower conversion filler；, while obtaining complete bottom.By spectral conversion layer
Film forming solution is set to viscosity higher, is to prevent spectrum conversion particles from occurring uncontrollable Excessive Settlement.Due to exhausted
Edge is cylindrical structure, therefore in order to realize the natural subsidence of lower conversion filler, insulator sidewall surfaces are circumferentially divided into
4-6 parts, first select wherein 1 part to be coated, coated portion place up (by insulator water placing flat, insulator
Axle center is parallel with horizontal plane), natural subsidence 20-50min, sintering are carried out after coating, then part 2 is placed up, apply
Natural subsidence 20-50min, sintering, by that analogy, until coating insulator sidewall surfaces completely are carried out after covering.Specifically by multiple
Mask can be combined in coating by going to upper and lower the formation of the bottom for the endless belt composition that interval shape is distributed in insulator sidewall surfaces
Plate method or later-stage utilization scraper scrape division.Mask plate method be first insulator sidewall surfaces enclose set metal mask thin plate, it is necessary to
Gap is left in the place for forming bottom, is then coated.It is after the completion of integrally coating, before sintering, with scraping that scraper, which scrapes division,
Knife wipes the part that need not form bottom off.
(3) dense insulating layer in the middle of depositing
Middle dense insulating layer is deposited using dry-oxygen oxidation method：One layer of amorphous is sputtered first on the insulator of step (2)
Silicon, reheats oxidation, forms middle dense insulating layer 3；The non-crystalline silicon not final material layer, formed amorphous silicon layer after, adopt
With the heating stove heat amorphous silicon layer, it is aoxidized using oxygen in air, a small amount of nitrogen participates in reaction and (forms nitrogen in air
Silica) consistency, dielectric constant, the refractive index of film layer will not also significantly reduced.
Using first deposition of amorphous silicon layers, then it is carried out the method for dry-oxygen oxidation to obtain silica, be because dry oxygen
Aoxidize obtain silica quality is hard, densification, the incomparable superior isolation performance of the silica prepared with solwution method.
Optionally, appropriate heat conduction particle first can be deposited on bottom, for example, is aoxidized before deposition of amorphous silicon layers
Boron, titanium oxide, aluminum oxide etc., so, contain heat conduction particle in the middle dense insulating layer ultimately formed, can improve the layer
Thermal conductivity.
(4) the hydrophobic antireflection layer of deposition surface
Using the hydrophobic antireflection layer of solwution method deposition surface：Surface hydrophobicity antireflection layer film forming solution is prepared first, then
Surface hydrophobicity antireflection layer film forming solution is coated on middle dense insulating layer, re-sintered, surface hydrophobicity antireflection layer is formed
4。
Concavo-convex hydrophobic structure in hydrophobic antireflection layer is by controlling the granular size of silica and burning in silica solution
Knot condition etc. realizes that the size of pit or projection is micron order.
It is preferred that, after being pre-processed to insulator sidewall surfaces, before deposition substrate enhancement layer, in insulator side wall
Surface deposition reflection and heat insulation layer, reflection and heat insulation layer is preferably the silica containing tungsten oxide, and it has preferable heat-proof quality.
The forming method of silica containing tungsten oxide such as solwution method, or vacuum deposition method etc..
After surface hydrophobicity antireflection layer 4 is formed, install additional be connected with refractive body on connecting pole 8, connecting pole on the insulator
6, side where the refractive body is as backlight side, and refractive body is with specular reflection surface and parallel with insulator central shaft
Some reflecting poles or strip reflector, have between reflecting pole or strip reflector allow that ice and snow is passed through so as to preventing it two-by-two
The gap 7 of accumulation.
Embodiment 3
It is a kind of that there is anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, comprise the following steps：
(1) insulator is pre-processed
First, using the surface of blasting treatment insulator, then the ratio of natural gas and air is adjusted, makes the blue-flame temperature of flame
Degree cleans insulator with the flame of the temperature at 1000 DEG C or so, and the blue portion of flame is and exhausted close to insulator sidewall surfaces
Edge sidewall surfaces are separated by 1-4mm, and insulator sidewall surfaces are finally cleaned with pure water.
(2) deposition reflection and heat insulation layer
Using solwution method deposition reflection and heat insulation layer：The silicon dioxde solution containing tungsten oxide is prepared first, then will be contained
The silicon dioxde solution (amount of tungsten oxide is the 5% of tungsten oxide and silica gross mass) of tungsten oxide is coated in insulator side wall
On surface, re-sinter, form thickness 100nm reflection and heat insulation layer.
(3) bottom is deposited
Using solwution method deposition substrate enhancement layer：Enclosed first in insulator sidewall surfaces and set the thin version of metal mask, it is necessary to shape
Gap is left into the place of substrate enhancement layer, is then coated, is specially：First prepare low viscosity (coefficient of viscosity 90mPaS)
Silica solution, be coated in insulator sidewall surfaces, then rapid draing 160s, form the substrate that stable thickness is 30nm
Enhancement layer；
Spectral conversion layer is deposited using solwution method：The silica solution of high viscosity (coefficient of viscosity 450mPaS) is prepared again,
Add lower conversion filler NaYF4：Yb3+, Er3+(mass fraction 10.0%), stirs, standby；By insulator sidewall surfaces edge
Ring is divided into 5 parts, first coats wherein 1 part, and coated portion is placed up, and natural subsidence 30min is carried out after coating, burns
Knot, then part 2 is placed up, natural subsidence 30min, sintering, by that analogy, until coating is exhausted completely are carried out after coating
Edge sidewall surfaces, obtain the spectral conversion layer that thickness is 1000nm.
The thin version of metal mask is removed, complete bottom 2 is obtained.
(4) dense insulating layer in the middle of depositing
Middle dense insulating layer is deposited using dry-oxygen oxidation method：One layer of amorphous is sputtered first on the insulator of step (3)
Silicon, reheats oxidation, and forming thickness 1000nm, (the middle dense insulating layer thickness of part is between annular bottom two-by-two
2030nm), the middle dense insulating layer of refractive index 1.8；
(5) the hydrophobic antireflection layer of deposition surface
Using the hydrophobic antireflection layer of solwution method deposition surface：Silica solution is prepared first, then applies silica solution
Overlay on middle dense insulating layer, re-sinter, form thickness 900nm, the surface hydrophobicity antireflection layer of refractive index 1.4.
(6) after insulator sidewall surfaces form all coatings, install additional connected on connecting pole 8, connecting pole on the insulator
There is refractive body 6, side where the refractive body is as backlight side, and refractive body is with specular reflection surface and and insulation subcenter
The parallel some strip reflectors of axle, have between strip reflector between allowing that ice and snow is passed through so as to prevent its accumulation two-by-two
Gap 7.
The optimal embodiment of the present invention is the foregoing is only, for those skilled in the art, the present invention can have
Various modifications and variations.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., all should
Within protection scope of the present invention.
Claims (10)
1. with anti-ice-flashing, the insulator of pollution flashover coating, including insulator, it is characterised in that described insulator (1) side wall table
Face is disposed with bottom (2), middle dense insulating layer (3) and surface hydrophobicity antireflection layer (4) from inside to outside；Described bottom
It is the two-layer composite being made up of the substrate enhancement layer (2a) of inner side and the spectral conversion layer (2b) in outside, spectral conversion layer
Lower conversion filler is provided with (2b).
2. according to claim 1 have anti-ice-flashing, the insulator of pollution flashover coating, it is characterised in that described lower conversion
Filler is in non-uniform Distribution in spectral conversion layer (2b), and content gradually rises from outside to inside；Described lower conversion filler be containing
Powder is changed under the nanometer for having rare earth element.
3. according to claim 1 have anti-ice-flashing, the insulator of pollution flashover coating, it is characterised in that described bottom (2)
It is to be made up of multiple interval endless belts for being distributed in insulator (1) sidewall surfaces of shape that go to upper and lower, middle dense insulating layer (3)
In the filling gap that endless belt is formed two-by-two；It is provided between described insulator (1) sidewall surfaces and substrate enhancement layer reflective
Thermal insulation layer (5).
4. according to claim 1 have anti-ice-flashing, the insulator of pollution flashover coating, it is characterised in that dredges on described surface
Water antireflection layer is made up of silica or silicon nitride material, and refractive index is 1.3-1.6；Described middle dense insulating layer is by densification
Silica, compact silicon nitride or fine and close silicon oxy-nitride material are made, and refractive index is 1.7-2.0；The folding of described spectral conversion layer
Rate is penetrated for 2.0-2.4；Described substrate enhancement layer is made up of silica material.
5. according to claim 1 have anti-ice-flashing, the insulator of pollution flashover coating, it is characterised in that described insulator
Side be provided with refractive body (6), side where the refractive body as backlight side, refractive body to be with specular reflection surface and
Some reflecting poles or strip reflector parallel with insulator central shaft, have between reflecting pole or strip reflector hold two-by-two
Perhaps ice and snow passes through to prevent its gap (7) accumulated；Described refractive body can be connected by connecting pole (8) with insulator.
6. a kind of have anti-ice-flashing, the preparation method of the insulator of pollution flashover coating as described in claim any one of 1-5, it is special
Levy and be, comprise the following steps：
(1) bottom is deposited
Bottom is deposited using solwution method：Substrate enhancement layer film forming solution is prepared first, is coated in insulator (1) sidewall surfaces,
Sintering processes, form substrate enhancement layer (2a)；Spectral conversion layer film forming solution is prepared again, is coated on substrate enhancement layer, is sintered
Processing, forms spectral conversion layer (2b), while obtaining complete bottom (2)；
(2) dense insulating layer in the middle of depositing
Middle dense insulating layer (3) is deposited using dry-oxygen oxidation method；
(3) the hydrophobic antireflection layer of deposition surface
Using the hydrophobic antireflection layer of solwution method deposition surface：Surface hydrophobicity antireflection layer film forming solution is prepared first, then by table
The hydrophobic antireflection layer film forming solution in face is coated on middle dense insulating layer, is re-sintered, and forms surface hydrophobicity antireflection layer (4).
7. according to claim 6 have anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, it is characterised in that also
It is included in before deposition substrate enhancement layer, insulator sidewall surfaces is pre-processed, specific method is：First, using sandblasting
Insulator sidewall surfaces are handled, then clean with 900-1100 DEG C of flame insulator sidewall surfaces, the blue portion of flame is close
Or contact insulator sidewall surfaces, insulator sidewall surfaces are finally cleaned with pure water.
8. according to claim 7 have anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, it is characterised in that also
It is included in after being pre-processed to insulator sidewall surfaces, before deposition substrate enhancement layer, is deposited in insulator sidewall surfaces
Reflection and heat insulation layer (5).
9. according to claim 6 have anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, it is characterised in that
The specific method of described solwution method deposition bottom is：Substrate enhancement layer film forming solution is prepared first, is coated in insulator
In sidewall surfaces, then dry and form stable substrate enhancement layer；Spectral conversion layer film forming solution is prepared again, is added lower conversion and is filled out
Material, stirs, is coated on substrate enhancement layer, allows lower conversion filler natural subsidence 20-50min, settles after terminating, enters immediately
Row sintering processes, form the spectral conversion layer containing lower conversion filler, while obtaining complete bottom；
The specific method of dense insulating layer is in the middle of described dry-oxygen oxidation method deposition：Splashed first on the insulator of deposition bottom
One layer of non-crystalline silicon is penetrated, oxidation is reheated, middle dense insulating layer (3) is formed.
10. according to claim 6 have anti-ice-flashing, the preparation method of the insulator of pollution flashover coating, it is characterised in that also
It is included in be formed after surface hydrophobicity antireflection layer (4), installs additional be connected with refractive body on connecting pole (8), connecting pole on the insulator
(6), side where the refractive body is as backlight side, and refractive body is with specular reflection surface and equal with insulator central shaft
Capable some reflecting poles or strip reflector, have between reflecting pole or strip reflector allow that ice and snow passes through to prevent two-by-two
Its gap (7) accumulated.
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| CN110342929A (en) * | 2019-08-21 | 2019-10-18 | 江西誉鹏电气集团有限公司 | A kind of ageing-resistant ceramic insulator and preparation method thereof |
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| CN107293382B (en) | 2022-12-16 |
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