CN100356486C - Method for preparing insulator of anti pollution flashover in use for electric power equipment - Google Patents
Method for preparing insulator of anti pollution flashover in use for electric power equipment Download PDFInfo
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- CN100356486C CN100356486C CNB2005100127060A CN200510012706A CN100356486C CN 100356486 C CN100356486 C CN 100356486C CN B2005100127060 A CNB2005100127060 A CN B2005100127060A CN 200510012706 A CN200510012706 A CN 200510012706A CN 100356486 C CN100356486 C CN 100356486C
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- electric power
- power equipment
- pollution flashover
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Abstract
The present invention relates to a method for preparing an anti-pollution flashover insulator for electric power equipment. A mixed solution is prepared from 7-10 acetylacetone, 15-18 absolute ethyl alcohol, 62-65 butyl ester titanate and 8-11 water. Hydrochloric acid is added to adjust the pH value of the solution from 0.5 to 2; after stirred and mixed for 0.5 to 1 hours, the mixed solution is added with water 8-11 and made into collosol. A burned porcelain insulator is coated or sprayed with the collosol by lifting and pulling, baked and sintered at temperature of 400 to 600 DEG C with heating rate of 10 to 25 DEG C/min and holding time of 0.5 to 2.0 hours; after sintered, the insulator is cooled off in a furnace to obtain a finished product. The present invention raises the pollution resistance of the porcelain insulator and improves the surface condition of the insulator so as to reduce power failure accidents caused by pollution flashover.
Description
Technical field
The present invention relates to the preparation method of insulator of anti pollution flashover in use for electric power equipment.
Technical background
Porcelain insulator uses with a long history, and its all dielectric material has the desired characteristic of equipment for power transmission and distribution, no matter can both satisfy the requirement of each step voltage at mechanical load, electric property and thermo-mechanical property.Yet there is the deadly defect of two aspects in common porcelain insulator: the one, under filthy wet condition, insulator is made the time spent insulation property at power-frequency voltage and is sharply descended, normal generation local distribution is inhomogeneous, and the position of concentrating at electric field often causes corona, thereby produces radio interference.Uneven voltage distributes, and very easily causes porcelain body aging.
The reduction of insulator surface insulating capacity mainly is because insulator surface forms conductive pollution layer, this layer dirt deposits to insulator surface from atmosphere, can dirt reside in insulator surface, depends on that dunghill is with adhesive force between the insulator surface and the adhesion between the dunghill.Dunghill that deposits from atmosphere or dust granules be inorganic matter often, itself bonding force is relatively poor, and with its main cause that adheres to insulator surface be since insulator surface or dirt surface adsorption the organic substance in the atmosphere, as wet goods, form pollution layer thereby stick to the porcelain insulator surface.When running into wet weather, foggy weather, the spark plug porcelain insulator surface just may form moisture film, if contain salt in the pollution layer, will form conducting film at the porcelain insulating surface, causes the insulator contamination discharge.The main means that prevent pollution flashover at present are hand sweeping insulators, and time-consuming, effort and maintenance cost input are very big.
Summary of the invention
Technical problem to be solved by this invention provides a kind of photocatalysis Decomposition ability that has, organic substance attached to the porcelain insulator surface can be decomposed, make that inorganic matter adhered thereto is easier to come off under wind-force, rainwater effect, thereby improve the porcelain insulator of the anti-pollution flashover ability of porcelain insulator.
The present invention adopts following technical scheme:
The present invention adopts following ratio of weight and number component: acetylacetone,2,4-pentanedione is 7-10, absolute ethyl alcohol is 15-18, butyl titanate is 62-65, water is 8-11, with acetylacetone,2,4-pentanedione, absolute ethyl alcohol, the mixed solution that butyl titanate is prepared according to the above ratio, add hydrochloride adjusted solution pH value=0.5-2, mix after 0.5-1 hour and add entry 8-11 again, make colloidal sol, the porcelain insulator that bakes is adopted lift, coating or spray above-mentioned colloidal sol after dry, put into sintering furnace and carry out sintering, sintering temperature is 400-600 ℃, heating rate is 10-25 ℃/minute, and temperature retention time is 0.5-2.0 hour, behind the sintering with stove cooling.
The chemical formula of the pure metatitanic acid fourth of the analysis fat described in the above-mentioned colloidal sol process for preparation of the present invention is C
16H
36O
4Ti, relative molecular weight are 340.35, C
16H
36O
4Ti content 〉=98.0%, the molecular formula of analyzing pure absolute ethyl alcohol is CH
3CH
2OH, relative molecular weight are 46.07, C
16H
36O
4Ti 〉=99.7%, the molecular formula of analyzing pure acetylacetone,2,4-pentanedione is C
5H
8O
2, relative molecular weight is 100.12, C
5H
8O
2Content 〉=99.0%, reaction equation is:
Ti(OC
4H
9)
4+4H
2O→Ti(OH)
4+4C
4H
9OH
Ti(OH)
4+Ti(OC
4H
9)
4→2TiO
2+4C
4H
9OH
2Ti(OH)
4→2TiO
2+4H
2O
Start the magnetic-type mixer among the preparation method of the present invention, the container of clean drying is placed on the mixing platform, pour the acetylacetone,2,4-pentanedione of above-mentioned weight portion into container, and then pour metatitanic acid fourth fat into container, get absolute ethyl alcohol at last and pour container into, record stirs zero-time, add the hydrochloric acid adjustment and make solution pH value=0.5-2, when the mixing mixing time on the magnetic-type mixing platform reached 0.5-1 hour, water intaking added in the mixed solution, continue to stir, do not get final product after thick when solution has precipitation and becomes sticky.
The porcelain insulator that bakes of the present invention is for soaking 3-5 minute with 10% hydrochloric acid solution, with the insulator behind the deionized water cleaning, drying.
Good effect of the present invention is as follows: adopt technology of the present invention, fire one deck TiO on its porcelain body surface after insulator porcelain body sintering is finished
2Film, and sintering is made finished product once more, it has been had under ultraviolet irradiation, has the photocatalysis Decomposition ability, can the organic substance attached to the porcelain body surface be decomposed, inorganic matter adhered thereto is easier to come off under wind-force, rainwater effect thereby make, to reach the requirement that improves the anti-pollution flashover ability of porcelain insulator.TiO
2Particularly under the ultraviolet irradiation, have the catalytic decomposition ability at visible light, can decompose organic substances such as oil, phenol, adopt the inventive method at porcelain insulator surface preparation TiO
2Film has improved the stain resistance of porcelain insulator, improves the surface appearance of insulator, and then reduces the power outage that causes because of pollution flashover.In addition, TiO
2Has semiconductor properties, when scribbling TiO
2When the insulator of composition met dense fog, drizzle, its surface had suitable Leakage Current and flows through, and the heat effect of this electric current can be accelerated the dry run of insulator surface, and give birth on the ground of sending out that helps equally to reduce pollution flashover accident.
Since under no strong illumination condition, TiO
2Film has certain hydrophobic effect, therefore descends TiO in wet weather conditions such as drizzle, mist, snow, dew
2Film surface be difficult for to form complete moisture film, and the conductive ion of dunghill after by water-soluble separating is difficult to form conductive channel, thereby the ability of withstand voltage improves greatly.
Embodiment
In the methods of the invention, the chemical formula of analyzing pure metatitanic acid fourth fat is C
16H
36O
4Ti, relative molecular weight are 340.35, C
16H
36O
4Ti content 〉=98.0% is the product of Tianjin Chemical Reagents Factory No.1; The molecular formula of analyzing pure absolute ethyl alcohol 9 is CH
3CH
2OH, relative molecular weight are 46.07, C
16H
36O
4Ti 〉=99.7% is the product of big forever chemical reagent development centre, Tianjin; The molecular formula of analyzing pure acetylacetone,2,4-pentanedione is C
5H
8O
2, relative molecular weight is 100.12, C
5H
8O
2Content 〉=99.0% is the product of Tianjin Chemical Reagents Factory No.1.
In the colloidal sol process for preparation, chemical equation is as follows:
Ti(OC
4H
9)
4+4H
2O→Ti(OH)
4+4C
4H
9OH
Ti(OH)
4+Ti(OC
4H
9)
4→2TiO
2+4C
4H
9OH
2Ti(OH)
4→2TiO
2+4H
2O
Embodiment 1:
The present invention adopts following ratio of weight and number component: acetylacetone,2,4-pentanedione is 10, absolute ethyl alcohol is 17, butyl titanate is 62, water is 11, with acetylacetone,2,4-pentanedione, absolute ethyl alcohol, the mixed solution that butyl titanate is prepared according to the above ratio, the adding concentrated hydrochloric acid is adjusted solution pH value=0.5, mixes after 1 hour to add entry 8 again, makes colloidal sol, the porcelain insulator that bakes was soaked 5 minutes with 10% hydrochloric acid solution, behind the deionized water cleaning, drying, employing lifts, coating or spray above-mentioned colloidal sol after dry, put into sintering furnace and carry out sintering, sintering temperature is 600 ℃, heating rate is 18 ℃/minute, and temperature retention time is 0.5 hour, behind the sintering with stove cooling.
Embodiment 2:
Adopt following ratio of weight and number component: acetylacetone,2,4-pentanedione is 7, absolute ethyl alcohol is 15, butyl titanate is 65, water is 8, with acetylacetone,2,4-pentanedione, absolute ethyl alcohol, the mixed solution that butyl titanate is prepared according to the above ratio, the adding concentrated hydrochloric acid is adjusted solution pH value=2, mixes after 0.5 hour to add entry 11 again, makes colloidal sol, the porcelain insulator that bakes was soaked 3 minutes with 10% hydrochloric acid solution, behind the deionized water cleaning, drying, employing lifts, coating or spray above-mentioned colloidal sol after dry, put into sintering furnace and carry out sintering, sintering temperature is 400 ℃, heating rate is 10 ℃/minute, and temperature retention time is 2.0 hours, behind the sintering with stove cooling.
Embodiment 3:
Adopt following ratio of weight and number component: acetylacetone,2,4-pentanedione is 8.5, absolute ethyl alcohol is 18, butyl titanate is 63, water is 9, with acetylacetone,2,4-pentanedione, absolute ethyl alcohol, the mixed solution that butyl titanate is prepared according to the above ratio, the adding concentrated hydrochloric acid is adjusted solution pH value=1.2, mixes after 0.7 hour to add entry 9 again, makes colloidal sol, the porcelain insulator that bakes was soaked 4 minutes with 10%HCL solution, behind the deionized water cleaning, drying, employing lifts, coating or spray above-mentioned colloidal sol after dry, put into sintering furnace and carry out sintering, sintering temperature is 500 ℃, heating rate is 25 ℃/minute, and temperature retention time is 1.1 hours, behind the sintering with stove cooling.
Embodiment 4:
The colloidal sol process for preparation
According to the requirement of each component ratio of weight and number, measure 5 milliliters in metatitanic acid fourth fat, according to definite ratio, other each drug dosage is: 1.1 milliliters of acetylacetone,2,4-pentanediones, 10.5 milliliters of absolute ethyl alcohols, 1.08 milliliters in water.
Start the magnetic-type mixer, the dry beaker of cleaning is placed on the mixing platform, measure 1.1 milliliters of acetylacetone,2,4-pentanediones with specific graduated cylinder, pour beaker into, and then measure metatitanic acid fourth fat with graduated cylinder and pour beaker into for 5 milliliters, to get absolute ethyl alcohol at last and pour beaker into for 10.5 milliliters, record stirs zero-time.Add the hydrochloric acid adjustment and make solution pH value=1.
When the mixing mixing time on the magnetic-type mixing platform reaches half an hour, measure 1.08 milliliters in water and slowly splash in the mixed solution with dropper, continue to stir, when solution does not have precipitation and becomes sticky promptly available after thick.The colloidal sol of prepared capacity like this.
Be coated with membrane process
The electromagnetism bottle was soaked 3-5 minute with 10%HCL solution successively, with drying after the washed with de-ionized water, adopt czochralski method, the speed of electromagnetism bottle with 1cm/s is at the uniform velocity lifted out from glue, in 50-100 ℃ of baking oven, dry, can above-mentionedly repeatedly lift drying course 1-4 time.
Sintering
Put into sintering furnace and carry out 500 ℃ of sintering, 15 ℃/min of sintering heating rate, temperature retention time 2 hours is cooled off with stove behind the sintering.
Claims (9)
1, a kind of preparation method of insulator of anti pollution flashover in use for electric power equipment, it is characterized in that adopting following ratio of weight and number component: acetylacetone,2,4-pentanedione is 7-10, absolute ethyl alcohol is 15-18, butyl titanate is 62-65, water is 8-11, with acetylacetone,2,4-pentanedione, absolute ethyl alcohol, the mixed solution that butyl titanate is prepared according to the above ratio, add hydrochloride adjusted solution pH value=0.5-2, mix after 0.5-1 hour and add entry 8-11 again, make colloidal sol, the porcelain insulator employing that bakes is lifted, coating or spray above-mentioned colloidal sol after dry, put into sintering furnace and carry out sintering, sintering temperature is 400-600 ℃, and heating rate is 10-25 ℃/minute, temperature retention time is 0.5-2.0 hour, behind the sintering with stove cooling.
2, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 1 is characterized in that the chemical formula of the pure metatitanic acid fourth of the analysis fat described in the above-mentioned colloidal sol process for preparation is C
16H
36O
4Ti, relative molecular weight are 340.35, C
16H
36O
4Ti content 〉=98.0%, the molecular formula of analyzing pure absolute ethyl alcohol is CH
3CH
2OH, relative molecular weight are 46.07, C
16H
36O
4Ti 〉=99.7%, the molecular formula of analyzing pure acetylacetone,2,4-pentanedione is C
5H
8O
2, relative molecular weight is 100.12, C
5H
8O
2Content 〉=99.0%, reaction equation is:
Ti(OC
4H
9)
4+4H
2O→Ti(OH)
4+4C
4H
9OH
Ti(OH)
4+Ti(OC
4H
9)
4→2TiO
2+4C
4H
9OH
2Ti(OH)
4→2TiO
2+4H
2O
3, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 1 and 2, it is characterized in that starting among the described preparation method magnetic-type mixer, the container of clean drying is placed on the mixing platform, pour the acetylacetone,2,4-pentanedione of above-mentioned weight portion into container, and then pour metatitanic acid fourth fat into container, get absolute ethyl alcohol at last and pour container into, record stirs zero-time, add the hydrochloric acid adjustment and make solution pH value=0.5-2, when the mixing mixing time on the magnetic-type mixing platform reaches 0.5-1 hour, water intaking adds in the mixed solution, continues to stir, and does not get final product after thick when solution has precipitation and becomes sticky.
4, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 1 and 2 is characterized in that the described porcelain insulator that bakes is for soaking 3-5 minute with 10% hydrochloric acid solution, with the insulator behind the deionized water cleaning, drying.
5, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 3 is characterized in that the described porcelain insulator that bakes is for soaking 3-5 minute with 10% hydrochloric acid solution, with the insulator behind the deionized water cleaning, drying.
6, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 1 and 2, it is characterized in that described employing czochralski method is about to the electromagnetism bottle and at the uniform velocity lifts out with the speed of 1cm/s from glue, in 50-100 ℃ of baking oven, dry, above-mentionedly repeatedly lift drying course 1-4 time.
7, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 3, it is characterized in that described employing czochralski method is about to the electromagnetism bottle and at the uniform velocity lifts out with the speed of 1cm/s from glue, in 50-100 ℃ of baking oven, dry, above-mentionedly repeatedly lift drying course 1-4 time.
8, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 4, it is characterized in that described employing czochralski method is about to the electromagnetism bottle and at the uniform velocity lifts out with the speed of 1cm/s from glue, in 50-100 ℃ of baking oven, dry, above-mentionedly repeatedly lift drying course 1-4 time.
9, the preparation method of a kind of insulator of anti pollution flashover in use for electric power equipment according to claim 5, it is characterized in that described employing czochralski method is about to the electromagnetism bottle and at the uniform velocity lifts out with the speed of 1cm/s from glue, in 50-100 ℃ of baking oven, dry, above-mentionedly repeatedly lift drying course 1-4 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100127060A CN100356486C (en) | 2005-07-29 | 2005-07-29 | Method for preparing insulator of anti pollution flashover in use for electric power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100127060A CN100356486C (en) | 2005-07-29 | 2005-07-29 | Method for preparing insulator of anti pollution flashover in use for electric power equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1728291A CN1728291A (en) | 2006-02-01 |
| CN100356486C true CN100356486C (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100127060A Expired - Fee Related CN100356486C (en) | 2005-07-29 | 2005-07-29 | Method for preparing insulator of anti pollution flashover in use for electric power equipment |
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|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280281B (en) * | 2013-05-31 | 2015-10-28 | 北京科技大学 | A kind of preparation method of antifouling flash insulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102198B (en) * | 1985-04-01 | 1987-08-19 | 重庆大学 | Method of developing insulator pollutant resistant characterics |
| CN1103731A (en) * | 1993-08-03 | 1995-06-14 | 武汉市洪山区水利电力技术开发服务部 | Discal suspended large capacity synthetic insulator |
| CN1087095C (en) * | 1995-02-11 | 2002-07-03 | 亚瑞亚·勃朗勃威力有限公司 | Manufacture of insulators |
-
2005
- 2005-07-29 CN CNB2005100127060A patent/CN100356486C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102198B (en) * | 1985-04-01 | 1987-08-19 | 重庆大学 | Method of developing insulator pollutant resistant characterics |
| CN1103731A (en) * | 1993-08-03 | 1995-06-14 | 武汉市洪山区水利电力技术开发服务部 | Discal suspended large capacity synthetic insulator |
| CN1087095C (en) * | 1995-02-11 | 2002-07-03 | 亚瑞亚·勃朗勃威力有限公司 | Manufacture of insulators |
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| Publication number | Publication date |
|---|---|
| CN1728291A (en) | 2006-02-01 |
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Granted publication date: 20071219 Termination date: 20110729 |