CN219327589U

CN219327589U - Wind-powered electricity generation blade leading edge protection system

Info

Publication number: CN219327589U
Application number: CN202222541027.4U
Authority: CN
Inventors: 张井坡; 李小东; 黄文贺
Original assignee: Beijing Ruike Hengneng Technology Co ltd
Current assignee: Beijing Ruike Hengneng Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-07-11
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of wind power blade protection, in particular to a wind power blade front edge protection system which comprises a putty layer, a protective paint layer and a UEO film, wherein the putty layer, the protective paint layer and the UEO film are sequentially arranged on the cambered surface of the front edge of a blade main body from inside to outside, the putty layer is embedded in the cambered surface of the front edge of the blade main body, the protective paint layer completely covers the putty layer, and the UEP film covers the cambered surface of the front edge of the blade main body. The utility model provides a wind power blade front edge protection system, which is characterized in that a repair putty, a front edge protection layer and a UEP layer are arranged on the front edge of a wind power blade, so that the protection system of the front edge of the blade is established, and the corrosion resistance, weather resistance and ultraviolet resistance of the front edge of the blade are improved.

Description

Wind-powered electricity generation blade leading edge protection system

Technical Field

The utility model relates to the technical field of wind power blade protection, in particular to a wind power blade leading edge protection system.

Background

Wind power blades are generally composed of two half shells (one of which is called PS face and the other half shell is called SS face) bonded by adhesive at the positions of leading edge, trailing edge and supporting webs (leading edge web and trailing edge web); the two half shells are formed by fiber sandwich composite boards and girder components.

In wind fields with more abundant rainfall, in order to enhance the rain erosion resistance of the blade, a front edge protective film is generally adhered to the front edge from the middle part of the blade to the tip of the blade. In the existing protection method, due to the fact that the weather resistance of the protection film is insufficient, the ultraviolet resistance is poor, the front edge protection coating is damaged after the blade runs for three years, the pneumatic performance of the blade is poor, and therefore the generating capacity of the unit is finally reduced.

Disclosure of Invention

In view of the above, the utility model provides a wind power blade leading edge protection system, which is built by arranging repair putty, a leading edge protection layer and a UEP layer on the leading edge of the wind power blade so as to improve the corrosion resistance, weather resistance and ultraviolet resistance of the leading edge of the blade.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a wind power blade front edge protection system which comprises a putty layer, a protective paint layer and a UEP film, wherein the putty layer, the protective paint layer and the UEP film are sequentially arranged on the cambered surface of the front edge of a blade main body from inside to outside, the putty layer is embedded in the cambered surface of the front edge of the blade main body, the protective paint layer completely covers the putty layer, and the UEP film covers the cambered surface of the front edge of the blade main body.

In the wind power blade front edge protection system, as a preferable scheme, a polishing groove is formed in the front edge cambered surface of the blade main body, and putty is scraped in the polishing groove to form a putty layer.

In the wind power blade leading edge protection system, the thickness of the putty layer is 1mm-2mm as an optimal scheme.

In the wind power blade leading edge protection system, as an optimal scheme, the putty layer is solidified quick-drying putty.

In the wind power blade leading edge protection system, as an optimal scheme, the thickness of the protective paint layer is 220um-240um.

In the wind power blade leading edge protection system, as an optimal scheme, the protection paint layer comprises at least three layers of protection paint.

In the wind power blade front edge protection system, as a preferable scheme, the protective paint layer is a solid thin object which is formed by mixing and curing any one or two or more of a stabilizer, a defoaming agent, ethyl acetate, monopotassium phosphate, an ultraviolet light absorber, pigment and filler, titanium pigment, high-boiling aromatic hydrocarbon and diatomite and is matched with the front edge cambered surface of the putty layer.

In the wind power blade leading edge protection system, the thickness of the UEP film is preferably 0.5-1 mm.

In the wind power blade leading edge protection system, preferably, the UEP film is a polyethylene film or a soft PP film or an ultraviolet-resistant film.

The utility model provides a wind power blade leading edge protection system, which has the following beneficial effects:

the utility model provides a wind power blade front edge protection system, which is characterized in that a repair putty, a front edge protection layer and a UEP layer are arranged on the front edge of a wind power blade, so that the protection system of the front edge of the blade is established, the corrosion resistance, weather resistance and ultraviolet resistance of the front edge of the blade are improved, the service life of the blade is prolonged, the repair frequency of the blade is reduced, and the speed of weakening the aerodynamic performance of the blade is slowed down.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a wind power blade leading edge protection system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a truncated general structure of a wind turbine blade leading edge protection system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an overall structure of a wind power blade leading edge protection system according to an embodiment of the present utility model after explosion;

FIG. 4 is an enlarged partial cross-sectional schematic view of a wind turbine blade leading edge protection system according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a blade body; 2. a putty layer; 3. a protective paint layer; 4. UEP membranes; 5. and (5) grinding the groove.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 4, the embodiment of the utility model provides a wind power blade leading edge protection system, which comprises a putty layer 2, a protective paint layer 3 and a UEP film, wherein the putty layer 2, the protective paint layer 3 and the UEP film are sequentially arranged on the cambered surface of the front edge of a blade main body 1 from inside to outside, the putty layer 2 is embedded in the cambered surface of the front edge of the blade main body 1, the protective paint layer 3 completely covers the putty layer 2, and the UEP film 4 covers the cambered surface of the front edge of the blade main body 1.

As shown in fig. 3, in the wind power blade leading edge protection system, as a preferable scheme, a polishing groove 5 is formed in the cambered surface of the leading edge of the blade body 1, and putty is scraped in the polishing groove 5 to form a putty layer 2. In order to avoid pollution of original paint to protective paint in the construction process, all paint surfaces of the front edge of the original wind power blade are required to be polished, after dust is cleaned, the front edge is scraped and coated with repair putty, after the putty is solidified, the surface of the putty is roughened, and the front edge protective paint is rolled and coated. In the repair putty knife coating process, the surface of the repair area is required to be smooth, the thickness is not too thick, and the thickness is not more than 2mm.

In the wind power blade leading edge protection system, as an optimal scheme, the thickness of the putty layer 2 is 1mm-2mm.

In the wind power blade leading edge protection system, as a preferable scheme, the putty layer 2 is cured quick-drying putty.

In the wind power blade leading edge protection system, as an optimal scheme, the thickness of the protective paint layer 3 is 220um-240um.

In the wind power blade leading edge protection system, the protective paint layer 3 preferably comprises at least three layers of protective paint.

In the wind power blade front edge protection system, as a preferable scheme, the protective paint layer 3 is a solid thin object which is formed by mixing and solidifying any combination of a stabilizer, a defoamer, ethyl acetate, monopotassium phosphate, an ultraviolet light absorber, pigment and filler, titanium white, high-boiling aromatic hydrocarbon and diatomite and is matched with the front edge cambered surface of the putty layer 2. The protective paint has an aging-resistant and ultraviolet-resistant material, and is preferably, but not limited to, a stabilizer, a defoamer, ethyl acetate, monopotassium phosphate, an ultraviolet light absorber, pigment and filler, titanium pigment, high-boiling aromatic hydrocarbon, diatomite and the like.

In the wind power blade leading edge protection system, the thickness of the UEP film 4 is preferably 0.5mm-1mm.

In the wind power blade leading edge protection system, as a preferable scheme, the UEP film 4 is a polyethylene film or a soft PP film or an ultraviolet-resistant film. The UEP film 4 adopted outside the protective paint is coated or co-extruded, the protective layer and the UEP film 4 layer are solidified together by adopting a vacuum bag press, the UEP film 4 adopts a polyethylene film or other materials, such as a soft PP film, and the thickness of the UEP film 4 is 0.5mm-1mm in order to ensure that the front edge curved surface of the blade is well adhered. Preferably, a uv resistant film is used, which is advantageous in preventing deep aging of the UEP film 4.

In order to improve the bonding strength of different interfaces, the interfaces are composed of 808g/m glass fiber cloth and hand paste resin, the glass fiber cloth needs to be double-shaft cloth, and the gram weight is not more than 1215 g/m. And excessive thick glass fiber cloth is not needed, so that the thickness of the front edge of the blade and the weight of the blade are prevented from being increased.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present utility model, the present disclosure should not be construed as limiting the present utility model in summary.

Claims

1. The utility model provides a wind-powered electricity generation blade leading edge protection system, its characterized in that includes putty layer, protective paint layer and UEP membrane, the putty layer protective paint layer with the UEP membrane sets gradually at the cambered surface of blade main part leading edge from inside to outside, the putty layer inlay in the leading edge cambered surface of blade main part, protective paint layer covers completely the putty layer, UEP membrane covers the leading edge cambered surface of blade main part.

2. The wind power blade leading edge protection system according to claim 1, wherein a grinding groove is formed in the cambered surface of the leading edge of the blade body, and putty is scraped in the grinding groove to form a putty layer.

3. The wind power blade leading edge protection system of claim 1 wherein the putty layer has a thickness of 1mm-2mm.

4. A wind power blade leading edge protection system according to claim 3, wherein the putty layer is a cured quick-drying putty.

5. The wind blade leading edge protection system of claim 1 wherein the protective paint layer has a thickness of 220um-240um.

6. The wind blade leading edge protection system of claim 5 wherein the protective paint layer comprises at least three layers of protective paint.

7. The wind power blade leading edge protection system of claim 6, wherein the protective paint layer is a solid thin object which is in arc fit with the putty layer leading edge.

8. The wind power blade leading edge protection system of claim 1 wherein the UEP film thickness is 0.5mm-1mm.

9. The wind power blade leading edge protection system of claim 8, wherein the UEP film is a polyethylene film or a soft PP film or an ultraviolet resistant film.