CN100998974B - Spray technology of high voltage insulator surface coating and its spray device - Google Patents
Spray technology of high voltage insulator surface coating and its spray device Download PDFInfo
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- CN100998974B CN100998974B CN2007100084100A CN200710008410A CN100998974B CN 100998974 B CN100998974 B CN 100998974B CN 2007100084100 A CN2007100084100 A CN 2007100084100A CN 200710008410 A CN200710008410 A CN 200710008410A CN 100998974 B CN100998974 B CN 100998974B
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Abstract
A technology for spraying a dirt sparkle-resistant film layer on the surface of high-voltage insulator includes such steps as fixing several rotary supporters on the edge of a rotary disc, fixing an insulator to one rotary supporter, and driving said supporter to rotate by drive mechanism when the high-voltage insulator comes in a spraying room while spraying paint from high-pressure spray gun onto the surface of the insulator. Its apparatus is also disclosed.
Description
Technical field
The present invention relates to a kind of spraying coating process and spray equipment of high voltage insulator surface coating.
Background technology
The pollution flashover phenomenon of high-tension insulator is serious problems in the high voltage power transmission and transforming road always, and the caused environmental pollution of economic in recent years growth fast causes pollution flashover phenomenon ascendant trend once.At present; Reduce the generation of high pressure insulator surface pollution flashover phenomenon and mainly take two class methods: one type is the variation of insulator self property and structure; Comprise that (1) changes from textural; Creep distance through changing insulator surface improves anti-fouling flashover performance, or directly increases the string number raising creep distance of insulator; (2) fire inorganic semiconductor glaze layer at insulator surface, reduce surface resistivity, the heat heating insulator surface that utilizes leakage current to emit promotes the surface moisture evaporation, and the anti-soil that improves insulator with blocking-up pollution flashover current path dodges ability.Another kind of is that existing insulator surface is carried out extra modification, mainly is the macromolecular material (like RTV coating) through and good insulating strong in insulator surface coating one deck hydrophobicity, improves the anti-fouling flashover performance of insulator.Be referred from back one class methods; Recently the applicant is applying for a patent the preparation method who proposes a kind of new antifouling flash insulator in 200510018529.7; Be about to titania colloidal solate and be coated in insulator surface and form the layer of titanium dioxide based nano film, the characteristic of semiconductor that utilizes titanium dioxide and photocatalysis (light is self-cleaning) characteristic reduce long-pending dirt, and the distribute anti-fouling flashover performance of raising insulator of even voltage of insulator surface.Different with insulator surface coating RTV coating method is; The anti-pollution flashover film of titanium dioxide base nano that is coated in insulator surface need be controlled its uniformity and thickness (nanoscale); This is difficult to be achieved through the brushing and the spraying method of routine for the complicated insulator of surface configuration.
Summary of the invention
The object of the invention has provided a kind of spraying coating process and spray equipment of high voltage insulator surface coating, and this technology and device thereof not only can be realized the even spraying of high pressure insulator surface than shallow layer, and the process units compact conformation, and be easy to use.
The spraying coating process of high voltage insulator surface coating of the present invention is to realize like this; But high-tension insulator is positioned on the support of rotation; But said rotation support is positioned on the perimembranous of single-revolution rotating disk, when said high-tension insulator is positioned at the spray booth of rotating disk sidepiece with the entering of revolution rotating disk, but drives the rotation of rotation support through transmission mechanism; And, make insulator surface apply thin layer with anti-pollution flashover function simultaneously by the spray gun ejection coating that is arranged in the spray booth.Described rotating disk revolution speed is: 0.1-2.0r/min, but rotation support rotational velocity is when getting into spray booth: 30-180r/min, the spray gun operating pressure is: 0.02-0.30Mpa.
Spray equipment of the present invention is characterised in that: comprise the single-revolution rotating disk; But be laid with a plurality of rotation supports that are positioned at same circumference on the perimembranous of said revolution rotating disk in order to the location high-tension insulator; Said revolution rotating disk bottom is provided with a driving-chain or driven pedrail mechanism; The medial margin of said driving-chain or driven pedrail outer side edges is provided with the circular arc inner lining body that is fixed on the support, so that driving-chain or driven pedrail outer side edges form circular arc, but is fixedly connected on the drive of rotation support lower end in order to drive; But said rotating disk is provided with the spray booth that is positioned at driving-chain or driven pedrail mechanism and rotation support top, is provided with spray gun in the said spray booth.Said spray gun is made up of spray gun upper, middle and lower three.Having a spray gun in the said spray gun at least is on the frame that is articulated in the spray booth, to realize swinging up and down injection.
Superiority of the present invention and benefit are: through the work disk is the revolution of rotating disk and the combination of the rotation of insulator sample own, has realized uniformity, the automatic spraying of the insulator surface nanometer anti pollution flashover film of big weight, surface configuration complicacy.The rotation of insulator has improved the spraying uniformity on the insulator surfaces of revolution, and upper, middle and lower three are used the even spraying that has solved a plurality of working faces of insulator spray gun the time.This spray equipment is simple in structure, volume is little, does not need very long linear flow production line, can utilize the space well, is fit to very much industrialized production.In addition; The revolution speed that also can be through regulating the work disk and the quantity for spray of spray gun satisfy the needs of actual industrial production; And for large-scale insulator spraying, then can use with increase workpiece position or parallelly connected a plurality of spray equipment through increasing work disk diameter according to the production needs and realize.This technology is of great immediate significance for cost, anti-the applying of pollution flashover thin film technique of promotion high pressure insulator surface coated with nano of reducing nanometer anti pollution flashover thin film coated.
Description of drawings
Fig. 1 is a spray equipment organigram of the present invention.
Fig. 2 is that the frame transmission mechanism schematic top plan view is propped up in revolution headgear and rotation.
But Fig. 3 is in order to drive the drive sprocket mechanism organigram of rotation support.
But Fig. 4 is in order to drive the driven pedrail mechanism organigram of rotation support.
Fig. 5 is placed with the rotation support organigram of just putting insulator.
Fig. 6 is placed with another rotation support organigram of being inverted insulator.
1 is the revolution rotating disk among the figure; 2 is high-tension insulator; But 3,4 be the rotation support; 5 is driving-chain I or driven pedrail mechanism; 6 is inner lining body; 7 is drive; 8 is spray booth; 9 is spray gun; 10 is frame; 11 are the revolution disk shaft; 12 is the spray booth outer cover; 13 is the base of rotary spraying device; 14 is motor; 15 is hinge wheel; 16 is minor sprocket; 17 is the driving wheel by driven by motor; 24 is driving-chain II.
18 is driving wheel by driven by motor among Fig. 3; 19 is inner lining body; 20 is driving-chain.
21 is driving wheel by driven by motor among Fig. 4; 22 is the roller as inner lining body; 23 is driven pedrail.
The specific embodiment
One, spray equipment embodiment structure of the present invention:
Spray equipment mainly is made up of revolution rotating disk, insulator rotation support and spray booth three parts.
The revolution rotating disk is one can make the work disk that circumference rotates, and its rotation is that rotating shaft is moved on disk plane with the disc centre.But evenly arrange the support of a plurality of fixed insulation on the platform, when the work disk rotated, insulator was made circular motion with disk.The support of fixed insulation can be designed to face upward or downward dual mode with insulator as required and place.The diameter of work disk can according to how many changes of workpiece position (chord position of fixed insulation), to satisfy the production demand.
The insulator rotating device is fixed on a certain side of work disk below, and its one-tenth is circular-arc, and the track of making circular motion with the insulator support coincide.Herein, the arc driving-belt of motion (driving-chain or driven pedrail) contacts with the central shaft that the insulator support is in work disk below, and drive support and insulator wherein carry out spinning motion, and insulator rotates with the work disk simultaneously.
The spray booth design is on the next door of insulator rotating device; Spray booth mainly is made up of the vapour-pressure type automatic spray gun upper, middle and lower three; Spray gun is fixed on the propclip; Can spray by three different directions from upper, middle and lower, middle spray gun also can swing up and down at certain angle, to improve the spraying uniformity of the middle concave surface of insulator.Equally, upper and lower two spray guns also can be provided with pendulous device according to actual needs.The distance of all spray guns and insulator surface of the work and the angle of nozzle all can be adjusted, to satisfy the spraying needs of different size (shape is different) insulator.Spray gun and rotating device are isolated by an outer cover, and spray coating liquor is extensively trickled down in the space when preventing to spray.Spray coating liquor can be pressed into spray gun through the air pressure mode, also can press siphon mode through liquid level self drop and get into spray gun through raising the placement height of spray coating liquor.Compressed air then can filter the back through suction through an air compressor and introduce.
Two, the spraying of insulator surface nanometer anti pollution flashover film
Above-mentioned spray equipment is by following process work: at first, be fixed on insulator on the support along with the work disk rotates; After forwarding spray booth to; Support and insulator thereof that driving-chain in the rotating device or driven pedrail drive fixed insulation carry out rotation; Three different directions spray to insulator surface to spray gun equably from upper, middle and lower with photochemical catalyst at this moment; For the plain edition insulator that does not have middle full skirt, can only open upper and lower two spray guns; After insulator produced spray booth with the work disk, the insulator support broke away from the driving-belt of rotating device, stops rotation, just rotates with the work disk.At last, under manual work helps, take out the insulator after spraying, accomplish whole spraying process, and the support of vacating can be put into the insulator that another does not spray, rotate the process that sprays once more with the work disk.
The technological parameter such as air pressure, spray coating liquor flow of rotational velocity, spray gun of rotary speed, insulator of disk of working in the said apparatus all can be controlled within the specific limits; These technological parameters will influence the coating effect of rete: the degree of scatter of (1) spray gun air pressure decision liquid photochemical catalyst; Gas pressure is even more greatly more, but too conference strengthens the waste of spray coating liquor; (2) gun traffic and revolution speed determine the thickness of nanometer anti pollution flashover film jointly, and under the situation that thicknesses of layers is confirmed, flow is more little, and required spray time is many more, needs the rotary speed of reduction work disk, or circulation repeatedly sprays; When strengthening gun traffic; Required spray time is few more, and the revolution speed of work disk requires big more, but flow too conference cause the sagging of spray coating liquor at insulator surface; Thereby destroy the uniformity of film, the rotary speed (revolution speed) of the disk of therefore working is conditional.(3) in order to make the surface spraying of insulator difformity evenly, the flow of spray gun is decided according to the area of the corresponding insulator of institute is big or small.(4) rotational velocity is fast more, and the rete of spraying is even more.
The rotating disk revolution speed of spray equipment is in the actual production: 0.2-0.5r/min, but rotation support rotational velocity is when getting into spray booth: 60-120r/min, the spray gun operating pressure is: 0.05-0.15Mpa.
The rete on embodiment 1:XWP-70 type high pressure porcelain insulator surface applies
After the commodity-type XWP-70 porcelain insulator surface clean drying of watering the type of dressing up, put into the insulator support that has on the work disk, rotation (revolution) speed of control work disk is 1r/min; The insulator rotational velocity is 90r/min; Three gun traffics are: go up gun traffic 4mL/min, middle gun traffic 5mL/min, following gun traffic 4mL/min; The air pressure of three spray guns is: the air pressure 0.08MPa that goes up spray gun; The air pressure 0.1MPa of middle spray gun, the air pressure 0.08MPa of following spray gun, the titanium dioxide solids content in the spray coating liquor is 3.0wt%; Sample makes the insulator that surfaces coated is covered with titanium deoxid film through (effectively spray time is about 15s) behind the spray booth.This insulator surface (long-pending 18dm that is about of total effectively sprayed surface
2) apply the about 1.5mL spray coating liquor (45mg solid titanium dioxide) that gets on, be equivalent to 2.5mg/dm
2Coated weight, thicknesses of layers is about 100～200nm.
This insulator is after Overheating Treatment, and its electric property is suitable with the common XWP-70 type insulator that does not have the anti-pollution flashover film of coated with nano; It is placed the open air after half a year, and the close and grey close value of salt on surface has only 20% of common insulator respectively, demonstrates the self-cleaning characteristic of good light.
The rete on embodiment 2:XP-70 type high pressure porcelain insulator surface applies
After commodity-type XWP-70 high pressure porcelain insulator (this insulator does not have middle full skirt, has only top and bottom) the surface clean drying of watering the type of dressing up, put into the insulator support that has on the work disk, open upper and lower two spray guns.The rotary speed of control work disk is 0.3r/min, and the insulator rotational velocity is 90r/min, and the flow of spray gun is: the flow 4mL/min that goes up spray gun; The flow 5mL/min of following spray gun; The air pressure of spray gun is: go up the air pressure 0.08MPa of spray gun, and the air pressure 0.08MPa of following spray gun, the titanium dioxide solids content in the spray coating liquor is 3.0wt%; Sample through spray booth after (effectively spray time be about 15s) take out, make the insulator that surfaces coated is covered with titanium deoxid film.This insulator surface (long-pending 13dm that is about of total effectively sprayed surface
2) apply the about 1.0mL spray coating liquor (30mg solid titanium dioxide) that gets on, be equivalent to 2.3mg/dm
2Coated weight, thicknesses of layers is about 100～200nm.
This insulator through Overheating Treatment, is recorded its electric property and do not have the common XP-70 type porcelain insulator of coated with nano titanium deoxid film suitable; It is placed the open air after half a year, and the close and grey close value of salt on surface has only 25% of common insulator respectively, demonstrates the self-cleaning characteristic of good light.
The present invention is novel, and is reasonable in design, not only help practicing thrift the production cost of high pressure porcelain insulator surface coating and reducing and pollute, and the production equipment high efficiency, take up an area of little.
Claims (1)
1. the spraying coating process of a high voltage insulator surface coating; It is characterized in that: but high-tension insulator is positioned on the support of rotation; But said rotation support is positioned on the perimembranous of a widely different dish of walking around, and when said high-tension insulator is positioned at the spray booth of rotating disk sidepiece with the widely different dish entering of walking around, but drives the rotation of rotation support through transmission mechanism; And simultaneously by the spray gun ejection coating that is arranged in the spray booth; Effectively spray time is 15s, and making high pressure insulator surface apply the thickness with anti-pollution flashover function is the titanium deoxid film layer of 100-200nm, and the revolution speed of said revolution rotating disk is: 0.2-0.5r/min; But rotation support rotational velocity is when getting into spray booth: 60-120r/min; The spray gun operating pressure is: 0.05-0.15MPa, but being laid with a plurality of rotation supports that are positioned at same circumference on the perimembranous of this spray equipment revolution rotating disk, revolution rotating disk bottom is provided with a driving-chain or driven pedrail mechanism; The medial margin of said driving-chain or driven pedrail outer side edges is provided with the circular arc inner lining body that is fixed on the support; So that driving-chain or driven pedrail outer side edges form circular arc, but be fixedly connected on the drive of rotation support lower end, but said spray booth is set in place in the top of driving-chain or driven pedrail mechanism and rotation support in order to drive; Spray gun is made up of spray gun upper, middle and lower three, and having a spray gun in the spray gun at least is on the frame that is articulated in the spray booth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100084100A CN100998974B (en) | 2007-01-05 | 2007-01-05 | Spray technology of high voltage insulator surface coating and its spray device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100084100A CN100998974B (en) | 2007-01-05 | 2007-01-05 | Spray technology of high voltage insulator surface coating and its spray device |
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| Publication Number | Publication Date |
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| CN100998974A CN100998974A (en) | 2007-07-18 |
| CN100998974B true CN100998974B (en) | 2012-07-04 |
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| CN2007100084100A Active CN100998974B (en) | 2007-01-05 | 2007-01-05 | Spray technology of high voltage insulator surface coating and its spray device |
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-
2007
- 2007-01-05 CN CN2007100084100A patent/CN100998974B/en active Active
Cited By (1)
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|---|---|---|---|---|
| US9875829B2 (en) | 2013-12-02 | 2018-01-23 | State Grid Shanxi Province Electric Power Company Jinzhong Supply Company | Method for recoating RTV anti-pollution flashover coating on insulator coated with RTV anti-pollution flashover coating |
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| CN100998974A (en) | 2007-07-18 |
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