CN109848863A - The method of wind-power tower surface treatment - Google Patents
The method of wind-power tower surface treatment Download PDFInfo
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- CN109848863A CN109848863A CN201910137002.8A CN201910137002A CN109848863A CN 109848863 A CN109848863 A CN 109848863A CN 201910137002 A CN201910137002 A CN 201910137002A CN 109848863 A CN109848863 A CN 109848863A
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Abstract
The present invention relates to a kind of surface treatment methods of wind-powered electricity generation, the especially method of wind-power tower surface treatment, comprising the following steps: tower removing surface；The processing of tower shot blasting on surface；Tower spray-applied primer；Tower sprays intermediate coat；Tower spray paint.The method of wind-power tower surface treatment provided by the invention can effectively ensure that antiseptic property, anti-ultraviolet ageing, anti-blown sand corrode, meet long-term requirement for anticorrosion, shorten spray time by drying, improve working efficiency, airless spraying effect is high, and surface is smooth.
Description
Technical field
The present invention relates to a kind of surface treatment methods of wind-powered electricity generation, the especially method of wind-power tower surface treatment.
Background technique
Wind-power electricity generation is as a kind of novel green clean energy resource, with its energy reserve abundant, huge market prospects
Advantage, effectively improve energy supply situation in short supply, therefore obtain positive development.
Since wind-power electricity generation is substantially at field or sea, working environment is severe, and the tower of wind-power electricity generation is required to
The influence of wind and rain, frost, the erosion of sand and dust and sunlight being exposed to the sun with cold current is withstood, therefore the surface treatment of tower seems
Increasingly important, the surface treatment of tower directly influences the service life of tower.
The service life of tower needs to reach 10 years or more at present, and many towers are at use 3 years with rear surface at present
The main reason for protective layer begins to fall off, failure, causes these phenomenons according to research is that the method being surface-treated exists and asks
Topic, causes the protective layer service life of tower not up to standard.
Summary of the invention
To solve the above problems, the present invention provides a kind of wind-powered electricity generation of service life that can effectively improve tower surface covering
The method of tower surface treatment, the specific technical proposal is:
The method of wind-power tower surface treatment, comprising the following steps: tower removing surface；The processing of tower shot blasting on surface；Tower
Cylinder spray-applied primer；Tower sprays intermediate coat；Tower spray paint.
By using above-mentioned technical proposal, removing surface and bead can be avoided the various surface defects of later period generation,
The adhesive force of priming paint is improved simultaneously.Priming paint provides the adhesive force of steel plate and intermediate coat, while as direct protective layer, mask erosion
Effect and electrochemical action.The main function of intermediate coat is to improve coat system overall performance, increases the general thickness of paint film, is increased
The shielding action of strong entire paint film system external circle water, electrolyte, solves the problems, such as that finishing coat that may be present is incompatible with priming paint.
The main function of finishing coat is the ageing resistance for improving entire paint film, improves the overall performance of paint film appearance performance and paint film system,
Enhance the shielding action to moisture and electrolyte.
Preferably, the tower removing surface is successively the following steps are included: the crator, sharp edge, burr on tower surface are polished；
It removes welding slag, splashing, delamination, cut hole, welding hole；The surface of tower is cleaned with diluent to remove oil, the rouge on tower surface；Respectively
High pressure washing is carried out with detergent and clear water, it is dry after flushing.
By using above-mentioned technical proposal, the surface defect effectively reduced after spraying can be used, oil removing, rouge etc. is gone to can be improved
The adhesive force of priming paint.Then it is cleaned herein by detergent, removes detergent finally by cleaning, and dry at once, prevent again
It is secondary to get rusty.
Preferably, steel sand is G25 when the bead, and the shot is S330, and the ratio of the steel sand and shot is
3:7；Spray gun is apart from tower surface 300-350mm when the bead, and angle is 40-50 degree, and the bead terminates
Tower surface is removed with clean compressed air afterwards, the derusting grade on the surface after the bead is Sa2.5, rough surface
Degree is 50-100 μm.
By using above-mentioned technical proposal, shot-peening can be effectively reduced surface roughness, scale removal and rust, to mention
The adhesive force of high priming paint, and can guarantee the surface quality after spraying, improve appearance.
The small pit that can reduce tower surface of surface roughness can reduce surface to reduce the usage amount of paint
The cost of processing.
Preferably, the interval between the tower spray-applied primer and the processing of tower shot blasting on surface is not more than 2 hours；The tower
Corner, dead angle and primary structural component are precoated with the mode brushed before cylinder spray-applied primer；Nothing is taken when the tower spray-applied primer
Gas blowout applies, and guarantees persistently to stir in painting process；The priming paint is epoxy zinc rich primer, and the zinc content in the priming paint is not
Lower than 80%, the thickness of dry film of the priming paint is 45-55 μm.
By using above-mentioned technical proposal, spray-applied primer is carried out rapidly after bead, can effectively avoid cleaning out
Tower be secondary polluted, so that the adhesive force of priming paint be effectively ensured.
Zinc has electro-chemical protection to steel, i.e. metallic zinc particle is reacted before steel substrate corrosion, played
The effect of sacrificial anode and protective cathode.
Corner, dead angle and primary structural component, which carry out precoating with brush, can effectively avoid omitting these positions when airless spraying.
The thickness of priming paint is too small to will lead to adhesive force and corrosion resistance variation, and thickness is too thick to cause higher cost, because of zinc
The price of powder is more expensive.
Since zinc powder is heavier, it is easy precipitating, therefore to stir always in spraying process.
Preferably, corner, dead angle and primary structural component are precoated with the mode brushed before the tower spraying intermediate coat；Institute
Airless spraying is taken when stating tower spraying intermediate coat；The intermediate coat is epoxy thickness slurry paint or epoxy micaceous iron paint；The intermediate coat
Thickness of dry film be 140-155 μm.
By using above-mentioned technical proposal, epoxy micaceous iron intermediate coat is in maroon, and mica ferrous oxide, and cloud are contained in paint
Female ferrous oxide is sheet.After matrix surface, sheet mica ferrous oxide is parallel to matrix surface, can effectively hinder
The infiltration of other pernicious gases in water and air considerably increases the path that pollutant passes through epoxy micaceous iron intermediate coat, to have
Effect guarantees the service life of the surface spraying of tower.
Preferably, corner, dead angle and primary structural component are precoated with the mode brushed before the tower spray paint；It is described
Airless spraying is taken when tower spray paint；The finishing coat is polyurethane finish, and the thickness of dry film of the finishing coat is 45-55 μm.
By using above-mentioned technical proposal, polyurethane finish is first of protective layer of tower corrosion-resistant, can prevent ultraviolet light
To the aging action of paint, certain pollutant inhibition may also function as.
Preferably, drying and processing is carried out after the tower spray-applied primer, tower spraying intermediate coat and tower spray paint,
Drying temperature is 80 DEG C, and drying time is 1-2 hours, stands 1-2 after the tower spraying intermediate coat and tower spray paint
It is dried after hour.
By using above-mentioned technical proposal, drying can greatly improve the effect of surface treatment, paint film is effectively ensured
Hardening, and improve surface quality.
Preferably, when the tower spray-applied primer, tower spraying intermediate coat and tower spray paint, the movement speed of spray gun
In 300-600mm/s, spray gun is 200-300mm at a distance from tower surface.
By using above-mentioned technical proposal, the distance and speed that control spray gun can effectively ensure that the quality of spraying, make to apply
Thickness degree is uniform, and reduces waste, save the cost.
Preferably, when the tower spray paint, hole is repaired with epoxy putty before spraying.
By using above-mentioned technical proposal, repairing hole or scratch using epoxy putty be can effectively ensure that outside good
It sees, and makes surfacing, avoiding the formation of pit causes using middle accumulation dirt.
Preferably, tower is mounted on automatic rotating device when the tower is painted rotates automatically, and tower spray painting exists
Indoor progress, indoor humidity are not more than 85%, and room temperature is not less than 5 DEG C.
By using above-mentioned technical proposal, temperature is too low, and coating cannot complete to solidify or solidification is very slow, and temperature is too low,
Paint viscosity is higher, and additional diluent need to be added, and further influences the drying property of paint film.It is also easy to when coating low-temperature construction
Generate the paint film defects such as sagging, bubble；Temperature is excessively high, and solvent volatilization influences very much filming performance fastly, is easy to appear dry spray, pin hole etc.
Defect.The excessive drying that also will affect paint film of humidity.Steel surface moisture condensation never allows, therefore general provision steel surface
Temperature necessarily is greater than 3 DEG C of dew point or more.
Compared with prior art the invention has the following advantages:
The method of wind-power tower surface treatment provided by the invention can effectively ensure that antiseptic property, anti-ultraviolet ageing, resist
Dust storm corrodes, meets long-term requirement for anticorrosion, shortens spray time by drying, improves working efficiency, and airless spraying effect is high,
And surface is smooth.
Specific embodiment
The method of wind-power tower surface treatment, comprising the following steps: tower removing surface；The processing of tower shot blasting on surface；Tower
Cylinder spray-applied primer；Tower sprays intermediate coat；Tower spray paint.
Removing surface and bead can be avoided the various surface defects of later period generation, while improve the adhesive force of priming paint.
Priming paint provides the adhesive force of steel plate and intermediate coat, while as direct protective layer, mask erosion effect and electrochemical action.It is intermediate
The main function of paint is to improve coat system overall performance, increases the general thickness of paint film, enhances entire paint film system external circle
The shielding action of water, electrolyte solves the problems, such as that finishing coat that may be present is incompatible with priming paint.The main function of finishing coat is to improve
The ageing resistance of entire paint film improves the overall performance of paint film appearance performance and paint film system, enhances to moisture and electrolyte
Shielding action.
Specifically, tower removing surface is successively the following steps are included: the crator, sharp edge, burr on tower surface are polished；It removes
Welding slag, delamination, cuts hole, welding hole at splashing；The surface of tower is cleaned with diluent to remove oil, the rouge on tower surface；Respectively with clear
Clean dose and clear water progress high pressure washing, it is dry after flushing.
Tower surface treatment can use the surface defect effectively reduced after spraying, and oil removing, rouge etc. is gone to can be improved the attached of priming paint
Put forth effort.Then it is cleaned herein by detergent, removes detergent finally by cleaning, and dry at once, prevent from getting rusty again.
Steel sand is G25, shot S330 when bead, and the ratio of steel sand and shot is 3:7；When bead spray gun away from
From tower surface 300-350mm, and angle is 40-50 degree, with clean compressed air removing tower table after bead
Face, the derusting grade on the surface after bead are Sa2.5, and surface roughness is 50-100 μm.
Shot-peening can be effectively reduced surface roughness, scale removal and rust, to improve the adhesive force of priming paint, and can
Surface quality after guaranteeing spraying improves appearance.
The small pit that can reduce tower surface of surface roughness can reduce surface to reduce the usage amount of paint
The cost of processing.
Interval between tower spray-applied primer and the processing of tower shot blasting on surface is not more than 2 hours；It is used before tower spray-applied primer
The mode of brushing precoats corner, dead angle and primary structural component；Airless spraying is taken when tower spray-applied primer, and guarantees to paint
It is persistently stirred in journey；Priming paint is epoxy zinc rich primer, and the zinc content in priming paint is not less than 80%, and the thickness of dry film of priming paint is
45-55μm。
Spray-applied primer is carried out after bead rapidly, can effectively avoid the tower cleaned out from being secondary polluted, thus
The adhesive force of priming paint is effectively ensured.
Corner, dead angle and primary structural component, which carry out precoating with brush, can effectively avoid omitting these positions when airless spraying.
The thickness of priming paint is too small to will lead to adhesive force and corrosion resistance variation, and thickness is too thick to cause higher cost, because of zinc
The price of powder is more expensive.
Since zinc powder is heavier, it is easy precipitating, therefore to stir always in spraying process.
Epoxy zinc rich primer includes epoxy resin, fumed silica, talcum powder, zinc powder, polyamide wax, polyamide
And PVC.First base-material is stirred evenly completely, the paint vehicle provided by coating producer, which matches, is slowly added to curing agent in base-material, uses
Blender is sufficiently stirred, and appropriate diluent (about 5%) is then added and is sufficiently stirred.Coating after mixed diluent should cure instead
Answer after 10~20min coating decoration again.
Corner, dead angle and primary structural component are precoated with the mode brushed before tower spraying intermediate coat；Tower spraying is intermediate
Airless spraying is taken when paint；Intermediate coat is epoxy thickness slurry paint or epoxy micaceous iron paint；The thickness of dry film of intermediate coat is 140-155 μm.
Epoxy micaceous iron intermediate coat is in maroon, mica ferrous oxide is contained in paint, and mica ferrous oxide is sheet.Coating
After matrix surface, sheet mica ferrous oxide is parallel to matrix surface, can effectively hinder the harmful gas of other in water and air
The infiltration of body considerably increases pollutant and passes through the path of epoxy micaceous iron intermediate coat, so that the surface spraying of tower be effectively ensured
Service life.
First base-material is stirred evenly completely when allotment, the paint vehicle provided by coating producer, which is matched, is slowly added to base for curing agent
It in material, is stirred, appropriate diluent is then added and stirred with blender.Coating after mixed diluent should cure instead
Answer after 10~20min coating decoration again.Pay attention to base-material must not being poured into curing agent in mixing, in order to avoid cause gel.
It estimates whether there is or not drain spray, sagging, do the defects of spray, thickness is measured with wet film card in spraying process, after paint film is dry
Film thickness is measured with magnetic dry film instrument.If film thickness is insufficient, 1 can be filled spray to reach corresponding thickness within the recoating time limit
Degree.If dry spray phenomenon occurs in spraying process, adjustment thinner ratio can be used, adjust the measures such as spray pressure to eliminate spraying
Defect.
Corner, dead angle and primary structural component are precoated with the mode brushed before tower spray paint；When tower spray paint
Take airless spraying；Finishing coat is polyurethane finish, and the thickness of dry film of finishing coat is 45-55 μm.
Polyurethane finish is first of protective layer of tower corrosion-resistant, and ultraviolet light can be prevented may be used also the aging action of paint
Play certain pollutant inhibition.
Drying and processing is carried out after tower spray-applied primer, tower spraying intermediate coat and tower spray paint, drying temperature is
80 DEG C, drying time is 1-2 hours, is dried after standing 1-2 hours after tower spraying intermediate coat and tower spray paint.Drying
The effect that surface treatment can greatly be improved, is effectively ensured the hardening of paint film, and improves surface quality.
When tower spray-applied primer, tower spraying intermediate coat and tower spray paint, the movement speed of spray gun is in 300-
600mm/s, spray gun are 200-300mm at a distance from tower surface.The distance and speed for controlling spray gun can effectively ensure that spraying
Quality, make uniform coating thickness, and reduce waste, save the cost.
When tower spray paint, hole is repaired with epoxy putty before spraying.Hole or scratch are repaired using epoxy putty
It can effectively ensure that good appearance, and make surfacing, avoiding the formation of pit causes using middle accumulation dirt.
Tower is mounted on automatic rotating device when tower is painted rotates automatically, and tower spray painting carries out indoors, room
Interior humidity is not more than 85%, and room temperature is not less than 5 DEG C.
Automatic rotating device is able to drive tower around axis uniform rotation, so that worker be facilitated to paint, reduces the labor of worker
Fatigue resistance effectively improves spray painting efficiency, and can effectively ensure that the thickness of paint film is uniform.
Temperature is too low, and coating cannot complete to solidify or solidification is very slow, and temperature is too low, and paint viscosity is higher, and volume need to be added
Outer diluent further influences the drying property of paint film.It is also easy to generate the paint films such as sagging, bubble disease when coating low-temperature construction
State；The defects of temperature is excessively high, and solvent volatilization influences very much filming performance fastly, is easy to appear dry spray, pin hole.Humidity is excessive also to will affect paint
The drying of film.Steel surface moisture condensation never allows, therefore general provision steel surface temperature necessarily is greater than 3 DEG C of dew point or more.
Claims (10)
1. the method for wind-power tower surface treatment, which comprises the following steps:
Tower removing surface；
The processing of tower shot blasting on surface；
Tower spray-applied primer；
Tower sprays intermediate coat；
Tower spray paint.
2. the method for wind-power tower surface treatment according to claim 1, which is characterized in that
The tower removing surface successively the following steps are included:
The crator, sharp edge, burr on tower surface are polished；
It removes welding slag, splashing, delamination, cut hole, welding hole；
The surface of tower is cleaned with diluent to remove oil, the rouge on tower surface；
High pressure washing is carried out with detergent and clear water respectively, it is dry after flushing.
3. the method for wind-power tower surface treatment according to claim 1, which is characterized in that the steel sand when bead
For G25, the shot is S330, and the ratio of the steel sand and shot is 3:7；Spray gun is apart from tower surface when the bead
300-350mm, and angle is 40-50 degree；Tower surface is removed with clean compressed air after the bead, it is described
The derusting grade on the surface after bead is Sa2.5, and surface roughness is 50-100 μm.
4. the method for wind-power tower surface treatment according to claim 1, which is characterized in that
Interval between the tower spray-applied primer and the processing of tower shot blasting on surface is not more than 2 hours；
Corner, dead angle and primary structural component are precoated with the mode brushed before the tower spray-applied primer；
Airless spraying is taken when the tower spray-applied primer, and guarantees persistently to stir in painting process；
The priming paint is epoxy zinc rich primer, and the zinc content in the priming paint is not less than 80%, the thickness of dry film of the priming paint
It is 45-55 μm.
5. the method for wind-power tower surface treatment according to claim 1, which is characterized in that
Corner, dead angle and primary structural component are precoated with the mode brushed before the tower spraying intermediate coat；
Airless spraying is taken when the tower spraying intermediate coat；
The intermediate coat is epoxy thickness slurry paint or epoxy micaceous iron paint；
The thickness of dry film of the intermediate coat is 140-155 μm.
6. the method for wind-power tower surface treatment according to claim 1, which is characterized in that
Corner, dead angle and primary structural component are precoated with the mode brushed before the tower spray paint；
Airless spraying is taken when the tower spray paint；
The finishing coat is polyurethane finish, and the thickness of dry film of the finishing coat is 45-55 μm.
7. the method for wind-power tower surface treatment according to claim 1, which is characterized in that
Drying and processing is carried out after the tower spray-applied primer, tower spraying intermediate coat and tower spray paint, drying temperature is
80 DEG C, drying time is 1-2 hours；It is dried after standing 1-2 hours after the tower spraying intermediate coat and tower spray paint.
8. the method for wind-power tower surface treatment according to claim 1, which is characterized in that the tower spray-applied primer,
Tower sprays intermediate coat and when tower spray paint, the movement speed of spray gun in 300-600mm/s, spray gun and tower surface away from
From for 200-300mm.
9. the method for wind-power tower surface treatment according to claim 1, which is characterized in that the tower spray paint
When, hole is repaired with epoxy putty before spraying.
10. the method for wind-power tower surface treatment according to claim 1, which is characterized in that the tower when tower is painted
Cylinder is mounted on automatic rotating device to be rotated automatically, and tower spray painting carries out indoors, and indoor humidity is not more than 85%, interior
Temperature is not less than 5 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910137002.8A CN109848863A (en) | 2019-02-25 | 2019-02-25 | The method of wind-power tower surface treatment |
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ID=66898786
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868057A (en) * | 2017-12-01 | 2019-06-11 | 辽宁法库陶瓷工程技术研究中心 | A kind of fiber reinforcement antiscour ablation surface and the preparation method and application thereof |
| CN110586443A (en) * | 2019-08-16 | 2019-12-20 | 江苏海力风电设备科技股份有限公司 | Novel onshore corrosion prevention process for wind power tower cylinder |
| CN112191481A (en) * | 2020-09-01 | 2021-01-08 | 湖北润翔重工科技有限公司 | Paint spraying process for tower tube of fan |
| CN114377927A (en) * | 2020-10-21 | 2022-04-22 | 华电重工机械有限公司 | Surface treatment method for wind power tower cylinder |
| CN114713483A (en) * | 2022-04-21 | 2022-07-08 | 河北京东管业有限公司 | Surface zinc-spraying anti-corrosion treatment process for nodular cast iron pipe |
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| CN106311580A (en) * | 2016-08-16 | 2017-01-11 | 天津中德工程设计有限公司 | Modified aqueous paint coating process for oil tank for petroleum cave depot/earthing storeroom |
| CN106824704A (en) * | 2016-12-26 | 2017-06-13 | 南通蓝岛海洋工程有限公司 | A kind of super large-scale for being applied to wind-power electricity generation machines the coating process of pedestal |
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| CN109078824A (en) * | 2018-09-27 | 2018-12-25 | 中国电建市政建设集团有限公司 | It is a kind of using water paint to the construction method of wind-power tower coating |
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| JPS5539229A (en) * | 1978-09-13 | 1980-03-19 | Babcock Hitachi Kk | Undercoat treating method for painting |
| CN107442369A (en) * | 2016-05-30 | 2017-12-08 | 五冶集团上海有限公司 | Oil paint coating construction method under hot and humid environment |
| CN106311580A (en) * | 2016-08-16 | 2017-01-11 | 天津中德工程设计有限公司 | Modified aqueous paint coating process for oil tank for petroleum cave depot/earthing storeroom |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868057A (en) * | 2017-12-01 | 2019-06-11 | 辽宁法库陶瓷工程技术研究中心 | A kind of fiber reinforcement antiscour ablation surface and the preparation method and application thereof |
| CN110586443A (en) * | 2019-08-16 | 2019-12-20 | 江苏海力风电设备科技股份有限公司 | Novel onshore corrosion prevention process for wind power tower cylinder |
| CN112191481A (en) * | 2020-09-01 | 2021-01-08 | 湖北润翔重工科技有限公司 | Paint spraying process for tower tube of fan |
| CN114377927A (en) * | 2020-10-21 | 2022-04-22 | 华电重工机械有限公司 | Surface treatment method for wind power tower cylinder |
| CN114713483A (en) * | 2022-04-21 | 2022-07-08 | 河北京东管业有限公司 | Surface zinc-spraying anti-corrosion treatment process for nodular cast iron pipe |
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Application publication date: 20190607 |
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