CN101814365A - Spraying coating process for preventing interphase short circuit of reactor - Google Patents
Spraying coating process for preventing interphase short circuit of reactor Download PDFInfo
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- CN101814365A CN101814365A CN200910219320A CN200910219320A CN101814365A CN 101814365 A CN101814365 A CN 101814365A CN 200910219320 A CN200910219320 A CN 200910219320A CN 200910219320 A CN200910219320 A CN 200910219320A CN 101814365 A CN101814365 A CN 101814365A
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Abstract
The invention discloses a spraying coating process for preventing the interphase short circuit of a reactor. The invention has the technical scheme that the process comprises the following steps: firstly, carrying out conventional trimming work procedure on the reactor; spraying zinc chromate primer and polyurethane ash paint; then, carrying out grinding and cleaning; completely covering a coil and a wiring teminal of the reactor; using a special spray gun for carrying out spraying coating on the exposed metal part of the reactor under the condition of the pressure of 0.6 +/- 0.1 MPa; carrying out secondary spraying coating after the primary spraying coating is completed and the glue liquid surface is vulcanized; and carrying out repeated spraying coating until the coating layer thickness reaches 2.5 +/- 0.5 mm. At the same time, brushing coating enhancing treatment is carried out at corner angles and turning corners with relatively thin spraying coating thickness. The reactor carrying out the spraying coating by the process can effectively avoid the interphase short circuit accidents caused by bird and beast climbing. The invention can be used for the production of the reactor, and can also be used for reforming the reactors operating in a transformer station, the reformation can be completed without large-scale equipment such as a crane and the like, in addition, the operation is convenient, and the implementation is easy.
Description
Technical field
The present invention relates to the reactor production technology, specifically relate to a kind of spraying coating process that prevents interphase short circuit of reactor.
Background technology
Along with the quickening of China's power grid construction speed, the expansion of scale, transformer station is also increasing.Operating in open air in the transformer station in recent years stacks type hollow series reactor, current limiting reactor and toys such as yellow weasel, cat frequently take place enters climbing and cause equipment breakdowns such as series reactor, current limiting reactor phase fault, turn-to-turn short circuit to take place, have a strong impact on the safe operation of electrical network, caused unnecessary economic loss for power department and vast power consumer.And in the prior art this generally there is not yet better solution, only be outer wall brushing one deck insulating varnish, but this kind method still can not be stopped to enter the generation that climbing causes equipment breakdowns such as series reactor, current limiting reactor phase fault, turn-to-turn short circuit because of toy at reactor.
Summary of the invention
At the above-mentioned problems in the prior art, the invention provides a kind of spraying coating process that prevents interphase short circuit of reactor, reactor by the spraying of this kind technology, can avoid effectively because the interphase short circuit of reactor accident that the birds and beasts climbing causes, not only can be used for the production of reactor, also can transform, not need lifting to wait main equipment can finish transformation the reactor that operates in the transformer station, and easy to operate.
A kind of spraying coating process that prevents interphase short circuit of reactor of the present invention comprises the step of following order:
(1) finishing, polishing, cleaning are carried out conventional finishing process earlier to reactor, with sand papering, star-like each star arm of cleaning, polish wedge angle and burr on star-like then, blow off the dust that produces because of polishing with air pump;
(2) spray paint after above-mentioned steps (1) finishes spray zinc chromate primer and acroleic acid polyurethane ash paint;
(3) after polishing, cleaning treat that zinc chromate primer that above-mentioned steps (2) is sprayed and acroleic acid polyurethane ash paint thoroughly dry, product surface is polished one time with fine sandpaper, with cotton yarn cleaning polishing vestige, guarantee clean, dustless, anhydrous and any conduction of product surface and surrounding environment or semiconductive material then;
(4) the spraying silicon rubber insulating paint wraps up the coil and the binding post of reactor fully, under certain pressure, uses special-purpose spray gun that the metal that reactor exposes is partly sprayed; First pass spraying is finished, 10-20 minute at interval, treat the sulfuration of glue surface after, carry out second time spraying; Spray repeatedly up to reaching the coating layer thickness requirement; Go out three kinds of colors of three-phase respectively during last time spraying, spraying is finished.
In the such scheme, the spray pressure described in the step (4) is 0.6 ± 0.1Mpa.
In the such scheme, when spraying in step (4), spray gun is 200-300mm apart from want spraying area.
In the such scheme, the coating layer thickness described in the step (4) is 2.5 ± 0.5mm.
In addition, even for guaranteeing coating thickness, reinforcement is brushed in the corner angle a little less than the coating thickness relative thin, corner handle.
The spraying coating process that the present invention is a kind of to prevent interphase short circuit of reactor compared with prior art has following advantage and effect:
1, the metal part that reactor exposes in the scheme, after comprising that star-like the metal flange process with the post insulator two ends sprays silicon rubber insulating paint, silicon rubber insulating paint is equivalent to put one deck insulating sleeve to star-like the metal flange with the post insulator two ends closely attached to coating surface and with star-like the whole parcel of metal flange with the post insulator two ends.Form and reactor winding itself is with epoxy resin and the glass fiber yarn is wrapped, the metal part that exposes is divided through after the processing of silicon rubber insulating paint, and just being equivalent to reactor is an integral body, realizes the whole all insulation of reactor;
2, can stop the personal injury accident that the climbing of ubiquitous because toy causes in the transformer station short trouble and charged nude cause effectively, avoid causing unnecessary loss to power department and vast electric family;
3, operation is simple and feasible, can carry out insulation processing to reactor before reactor dispatches from the factory, and also can quickly and easily the reactor that has put into operation in the transformer station be transformed not employing large-scale lifting appliance.
Embodiment
Below in conjunction with specific embodiment the present invention is prevented that the spraying coating process of interphase short circuit of reactor is described in further detail.
(1) finishing, polishing, cleaning are carried out conventional finishing process earlier to reactor, and in polishing, spraying process, lifting, whereabouts product are careful, in order to avoid damage the outer curved binding post of sealing and bump.With star-like each star arm of sand papering cleaning, polish wedge angle and burr on star-like then, blow off the dust that polishing produces with air pump.
(2) spray paint after above-mentioned steps (1) cleaning finishes zinc chromate primer and acroleic acid polyurethane ash paint that the spray reactor is used.
(3) after polishing, cleaning treat that zinc chromate primer that above-mentioned steps (2) is sprayed and acroleic acid polyurethane ash paint thoroughly dry, product surface is polished one time with fine sandpaper, with cotton yarn cleaning polishing vestige, guarantee clean, dustless, anhydrous and any conduction of product surface and surrounding environment or semiconductive material then.
(4) after the spraying silicon rubber insulating paint treats that zinc chromate primer and acroleic acid polyurethane ash paint dry, live reactor winding and binding post with useless film or disregard message paper bag, the spraying silicon rubber insulating paint.The spray silicon rubber insulating paint does not come off in case dope layer bubbles before not allowing zinc chromate primer and finish paint thoroughly not to parch.The spraying environment should keep dry dustless, anhydrous and any conduction or semiconductive material.Air compressor pressure is controlled at 0.6 ± 0.1Mpa, palpus jiggering before starting, and treat can use after the pressure stability.The appendix longest distance must not surpass 300 meters, and joint is solid and reliable, should give fixingly when line balance converter, and spray gun should guarantee spray-hole, spray gun cylinder body and storage tank keeps clean, free from admixture and keep unimpeded.
During spraying, use the metal part that special-purpose spray gun exposes reactor (metal flange that comprises star-like and post insulator two ends) to spray, require spraying evenly.Spray gun is apart from want spraying area 200-300mm during spraying.Should prevent large-area drip during spraying, the surface that is sprayed should be smooth smooth.First pass spraying is finished, 10-20 minute at interval, treat the sulfuration of glue surface after, can carry out second time spraying.Spray repeatedly up to coating layer thickness 2.5mm ± 0.5mm and be advisable.After thickness to be sprayed reached, last was all over going out three kinds of colors of three-phase respectively.
Spraying can not have the silk of extension and lacquer knurl, all need be sprayed onto everywhere reactor star arm and flange, must not leak spray.Simultaneously the corner angle a little less than the coating thickness relative thin, corner are brushed and strengthen to handle: should brush repeatedly during brushing and keep evenly, surfacing is with after reaching 0.5 ± 0.1mm and being standard at every turn, and 20 minutes at interval, back and forth to reach thickness requirement.
Embodiment 1
Metal flange place at star-like of reactor and post insulator two ends all handles with silicon rubber insulating paint, and spraying was 4～5 times when silicon rubber insulating paint was handled, and coating thickness is 2～3mm.
Climb in reactor at interval with shorting stub simulation toy, the shorting stub two ends are enclosed within star-like the star arm coating outside after the processing respectively.
Apply voltage 12.7kV according to test requirements document, it is constant to be raised to the back sustaining voltage, continues to cut off the electricity supply after 10 seconds, observes star-like outer top coat of shorting stub side and has or not breakdown point, repeats above-mentioned test three times.Result of the test such as table 1:
Table 1
| Sequence number | Voltage (kV) | Duration (s) | Process has no abnormal | Appearance of coat after the off-test |
| ??1 | ??12.7 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
| ??2 | ??12.8 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
| ??3 | ??12.6 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
Apply voltage 42kV according to test requirements document, it is constant to be raised to the back sustaining voltage, continues to cut off the electricity supply after 10 seconds, observes star-like outer top coat of shorting stub side and has or not breakdown point, repeats above-mentioned test three times.Result of the test such as table 2:
Table 2
| Sequence number | Voltage (kV) | Duration (s) | Process has no abnormal | Appearance of coat after the off-test |
| ??1 | ??42.3 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
| ??2 | ??42.5 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
| ??3 | ??42.1 | ??10 | No abnormal | Outward appearance is normal, no breakdown point |
In whole experiment, not hearing has abnormal voices such as creepage, discharge.After the off-test, check coating surface, do not find breakdown point, outward appearance is normal.The reactor that the silicon rubber insulating paint coating that 2～3mm thickness is described can satisfy 10kV and 35kV electric pressure prevents the phase fault requirement.
Adopt spraying coating process of the present invention, can realize the whole all insulation of reactor, alternate even toy is climbed accidentally in reactor, can not cause the reactor short circuit yet.This technology not only can be applied to the production of reactor, simultaneously, also can transform easily the reactor that has put into effect.
Claims (5)
1. a spraying coating process that prevents interphase short circuit of reactor is characterized in that, comprises the step of following order:
(1) finishing, polishing, cleaning are carried out conventional finishing process earlier to reactor, with sand papering, star-like each star arm of cleaning, polish wedge angle and burr on star-like then, blow off the dust that produces because of polishing with air pump;
(2) spray paint after above-mentioned steps (1) finishes spray zinc chromate primer and acroleic acid polyurethane ash paint;
(3) after polishing, cleaning treat that zinc chromate primer that above-mentioned steps (2) is sprayed and acroleic acid polyurethane ash paint thoroughly dry, product surface is polished one time with fine sandpaper, with cotton yarn cleaning polishing vestige, guarantee clean, dustless, anhydrous and any conduction of product surface and surrounding environment or semiconductive material then;
(4) the spraying silicon rubber insulating paint wraps up the coil and the binding post of reactor fully, under certain pressure, uses special-purpose spray gun that the metal that reactor exposes is partly sprayed; First pass spraying is finished, 10-20 minute at interval, treat the sulfuration of glue surface after, carry out second time spraying; Spray repeatedly up to reaching the coating layer thickness requirement; Go out three kinds of colors of three-phase respectively during last time spraying, spraying is finished.
2. a kind of spraying coating process that prevents interphase short circuit of reactor according to claim 1 is characterized in that the spray pressure in the described step (4) is 0.6 ± 0.1Mpa.
3. a kind of spraying coating process that prevents interphase short circuit of reactor according to claim 1 is characterized in that, when spraying in step (4), spray gun is 200-300mm apart from want spraying area.
4. a kind of spraying coating process that prevents interphase short circuit of reactor according to claim 1 is characterized in that the coating layer thickness in the described step (4) is 2.5 ± 0.5mm.
5. a kind of spraying coating process that prevents interphase short circuit of reactor according to claim 1 is characterized in that, the corner angle a little less than the coating thickness relative thin, corner is brushed strengthen handling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102193205A CN101814365B (en) | 2009-12-04 | 2009-12-04 | Spraying coating process for preventing interphase short circuit of reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102193205A CN101814365B (en) | 2009-12-04 | 2009-12-04 | Spraying coating process for preventing interphase short circuit of reactor |
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| Publication Number | Publication Date |
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| CN101814365A true CN101814365A (en) | 2010-08-25 |
| CN101814365B CN101814365B (en) | 2012-05-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680908A (en) * | 2013-09-30 | 2014-03-26 | 广东冠能电力科技发展有限公司 | Technology for internal surface small space protection in air flue of dry-type air-core reactor |
| CN103943346A (en) * | 2013-12-07 | 2014-07-23 | 国家电网公司 | Method for spray coating and protection of 66 kilovolt dry-type electric reactor |
| CN106211735A (en) * | 2016-08-25 | 2016-12-07 | 深圳振华富电子有限公司 | Electronic component rubberizing positioning fixture and sticking method |
| CN112221908A (en) * | 2020-09-09 | 2021-01-15 | 江苏美诺斯建材科技有限公司 | Fluorocarbon roller coating process of aluminum veneer for curtain wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737960A (en) * | 2005-09-05 | 2006-02-22 | 沪光集团有限公司 | Ring iron core reactor |
-
2009
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680908A (en) * | 2013-09-30 | 2014-03-26 | 广东冠能电力科技发展有限公司 | Technology for internal surface small space protection in air flue of dry-type air-core reactor |
| CN103680908B (en) * | 2013-09-30 | 2016-03-30 | 广东冠能电力科技发展有限公司 | The process for protecting in the little space of dry-type air-core reactor air flue inner surface |
| CN103943346A (en) * | 2013-12-07 | 2014-07-23 | 国家电网公司 | Method for spray coating and protection of 66 kilovolt dry-type electric reactor |
| CN103943346B (en) * | 2013-12-07 | 2016-08-17 | 国家电网公司 | 66 kilovolts of dry reactor sprayed protection methods |
| CN106211735A (en) * | 2016-08-25 | 2016-12-07 | 深圳振华富电子有限公司 | Electronic component rubberizing positioning fixture and sticking method |
| CN112221908A (en) * | 2020-09-09 | 2021-01-15 | 江苏美诺斯建材科技有限公司 | Fluorocarbon roller coating process of aluminum veneer for curtain wall |
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| Publication number | Publication date |
|---|---|
| CN101814365B (en) | 2012-05-30 |
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