Anti-glare panel and treatment method of retired wind power blade

Abstract

The invention belongs to the field of solid waste recycling, and provides an anti-glare panel and a treatment method of a decommissioned wind power blade, the anti-glare panel is a decommissioned wind power blade molded part, and the treatment method of the decommissioned wind power blade comprises the steps that the wind power blade is cut to obtain a panel with a preset size; and the surface of the plate is treated, and the anti-glare panel is obtained. At least part of the wind power blade is cut and subjected to surface treatment to form the anti-glare panel, so that the retired wind power blade is recycled, material waste is avoided, the wind power blade is green and environment-friendly, and pollution of the retired wind power blade to the environment is effectively reduced; the overall structure, the insulating property, the mechanical property, the corrosion resistance and the like of the wind power blade are still kept good, so that the wind power blade is manufactured into the anti-glare panel, the anti-glare panel has good structural performance and material performance, the long-term use requirement for road traffic facilities can be met, and meanwhile the manufacturing cost of the anti-glare panel can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of solid waste recycling, and more specifically, to a method for processing an anti-glare plate and retired wind turbine blades. Background Art

[0002] With the growing global demand for renewable energy, the wind power industry has developed rapidly, and wind power generation has become one of the important green energy sources. Wind turbine blades are the core components of wind turbines and are usually made of high-strength composite materials such as glass fiber reinforced plastics (GFRP) or carbon fiber reinforced plastics (CFRP). These materials have excellent mechanical properties and durability and can withstand strong winds and extreme weather.

[0003] However, the lifespan of wind turbine blades is generally 15-20 years. As time goes by, more and more wind turbine blades are facing the problem of retirement. Due to their large size and strong materials, the handling and disposal of retired wind turbine blades has become a major problem. Traditional methods of handling retired wind turbine blades mainly include landfill and incineration, which not only takes up a lot of land resources, but also pollutes the environment. For example, landfill treatment requires a lot of space, and the composite materials in the blades are difficult to degrade, which poses a long-term environmental pollution risk. Incineration treatment will produce harmful gases, which will have a negative impact on air quality. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an anti-glare plate and a method for processing retired wind turbine blades to solve the technical problems existing in the prior art of processing retired wind turbine blades by landfill and incineration, which requires a large amount of land resources and causes pollution to the environment.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a method for processing retired wind turbine blades, comprising:

[0006] Cutting wind turbine blades to obtain plates of preset sizes;

[0007] The surface of the plate is treated to obtain an anti-glare plate.

[0008] Optionally, the plate is cut from a leading edge shell or a trailing edge shell of the wind turbine blade.

[0009] Optionally, the leading edge shell and the trailing edge shell both include a first plate layer, a middle layer and a second plate layer stacked in sequence, the first plate layer and the second plate layer are both resin composite materials, and the middle layer is sandwich foam.

[0010] Optionally, the thickness of the plate is in the range of 2.5 mm to 4.0 mm.

[0011] Optionally, the plate is rectangular, the length of the plate is in the range of 110 mm to 130 mm, and the width of the plate is in the range of 15 mm to 20 mm.

[0012] Optionally, the surface of the plate is treated to obtain an anti-glare plate, comprising:

[0013] Collecting the cut plates;

[0014] cleaning the surface of the plate;

[0015] Testing the plates and selecting qualified plates;

[0016] Grinding the qualified plate;

[0017] The surface of the qualified plate is subjected to coating treatment to obtain an anti-glare plate.

[0018] Optionally, the surface coating of the qualified plate includes a waterproof coating, a corrosion-resistant coating and an anti-glare coating.

[0019] Optionally, after “treating the surface of the plate to obtain an anti-glare plate”, the method further includes:

[0020] The anti-glare plate is installed at a preset position of a traffic section.

[0021] Optionally, installing the anti-glare plate on a traffic section comprises:

[0022] Placing the anti-glare plate at a preset position on a traffic section;

[0023] Two clamping plates are respectively clamped on opposite sides of the anti-glare plate;

[0024] The clamping plate is fixed on the traffic section.

[0025] The present application also provides an anti-glare plate, which is a molded part of a retired wind turbine blade.

[0026] The beneficial effects of the anti-glare plate and the processing method of retired wind turbine blades provided in the present application are: compared with the prior art, the present application realizes the recycling of retired wind turbine blades by cutting and surface-treating at least part of the wind turbine blades, thereby avoiding material waste, being green and environmentally friendly, and effectively reducing the pollution caused by retired wind turbine blades to the environment. When the wind turbine blades are retired, the overall structure of the wind turbine blades and their insulation properties, mechanical properties, corrosion resistance, etc. are still maintained in good condition. Therefore, by making the wind turbine blades into anti-glare plates, the anti-glare plates have better structural properties and material properties, which can meet the long-term use requirements of road traffic facilities, and at the same time help to reduce the production cost of the anti-glare plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 A flow chart of a method for processing retired wind turbine blades provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the cross-sectional structure of a retired wind turbine blade provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of a plate provided in an embodiment of the present application;

[0031] Figure 4 The use status of the anti-glare plate provided in the embodiment of the present application Figure 1 ;

[0032] Figure 5 The use status of the anti-glare plate provided in the embodiment of the present application Figure 2 ;

[0033] Figure 6 Schematic diagram of the three-dimensional structure of the splint provided in the embodiment of the present application Figure 1 ;

[0034] Figure 7 Schematic diagram of the three-dimensional structure of the splint provided in the embodiment of the present application Figure 2 .

[0035] Description of main reference numerals:

[0036] 10. Wind turbine blade; 11. Leading edge shell; 12. Trailing edge shell; 13. Main beam; 14. Web; 20. Plate; 30. Anti-glare plate; 40. Clamp; 41. Vertical portion; 42. Horizontal portion; 50. First fastener; 60. Second fastener; 70. Traffic section. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0043] Please also read Figures 1 to 7 , the processing method of retired wind turbine blades provided in the embodiment of the present application is now described.

[0044] Please also read Figures 1 to 4 The method for processing retired wind turbine blades comprises the following steps:

[0045] Step S10: cutting the wind turbine blade 10 to obtain a plate 20 of a preset size, such as Figure 3 .

[0046] Step S20, treating the surface of the plate 20 to obtain an anti-glare plate 30, such as Figure 4 .

[0047] Compared with the prior art, the method for processing retired wind turbine blades provided in the present application realizes the recycling of retired wind turbine blades 10 by cutting and surface-treating at least part of the wind turbine blades 10 to avoid material waste. It is green and environmentally friendly, and effectively reduces the pollution to the environment caused by retired wind turbine blades 10. When the wind turbine blades 10 are retired, the overall structure of the wind turbine blades 10 and its insulation properties, mechanical properties, corrosion resistance, etc. are still maintained in good condition. Therefore, by making the wind turbine blades 10 into anti-glare plates 30, the anti-glare plates 30 have better structural properties and material properties, which can meet the long-term use requirements of road traffic facilities, and at the same time help to reduce the production cost of the anti-glare plates 30.

[0048] It should be noted that the retired wind turbine blades 10 referred to in the embodiment of the present application refer to discarded wind turbine blades 10, and the anti-glare plate 30 referred to in the embodiment of the present application is a safety protection device for road traffic facilities, and the anti-glare plate 30 is usually installed on the central dividing strip of highways, main roads and bridge guardrails. Among them, the anti-glare plate 30 can effectively block the direct irradiation of the lights of vehicles in the opposite lane, reduce the glare caused to the driver by the strong light of the opposite vehicle lights, improve the driving safety at night and in bad weather conditions, and effectively reduce the incidence of traffic accidents.

[0049] In addition, with the rapid development of my country's expressways and urban expressways, the traffic volume is large, the speed is high, and the brightness of the headlights has increased significantly at night, resulting in increasingly serious glare problems, especially in high-speed sections and high-density traffic areas at night. As a result, the demand for anti-glare panels 30 continues to increase. The present application uses retired wind turbine blades 10 to make the anti-glare panels 30, which can not only achieve efficient reuse of retired wind turbine blades 10, but also reduce the production cost of the anti-glare panels 30.

[0050] In step S10, the wind turbine blade 10 may be cut using a water jet cutting technique or a laser cutting technique, which has high cutting efficiency and cutting precision.

[0051] In one embodiment of the present application, see Figure 2 and Figure 3 The plate 20 is mainly selected from the leading edge shell 11 or the trailing edge shell 12 of the wind turbine blade 10. The leading edge shell 11 and the trailing edge shell 12 have a large curvature, so that the plate 20 cut from the leading edge rear shell and the trailing edge shell 12 is relatively straight, and there is no need to perform too many subsequent cutting and adjustment processes on the plate 20, which is beneficial to reducing the production cost of the anti-glare plate 30. The leading edge shell 11 or the trailing edge shell 12 is light in weight, making the anti-glare plate 30 made of the leading edge shell 11 or the trailing edge shell 12 easy to transport and install.

[0052] In one embodiment of the present application, see Figure 2 The leading edge shell 11 and the trailing edge shell 12 both include a first plate layer, a middle layer and a second plate layer stacked in sequence. The first plate layer and the second plate layer are both resin composite materials, and the middle layer is sandwich foam.

[0053] By making the first plate layer and the second plate layer of resin composite materials, the leading edge shell 11 and the trailing edge shell 12 have good structural properties, corrosion resistance, insulation performance, heat resistance and wear resistance, etc., and by using sandwich foam for the middle layer, the leading edge shell 11 and the trailing edge shell 12 are lighter in weight. It can be understood that the anti-glare panel 30 is made of the leading edge shell 11 and the trailing edge shell 12 of the wind turbine blade 10, so that the anti-glare panel 30 has good structural properties and material properties, which is beneficial to extending the service life of the anti-glare panel 30 and makes the anti-glare panel 30 lighter.

[0054] Optionally, the first board layer and the second board layer may be, but are not limited to, epoxy resin composite materials, unsaturated polyester resin composite materials, phenolic resin composite materials, etc.

[0055] It should be noted that, in other embodiments of the present application, the plate 20 may also be cut from the main beam 13 or the web 14 of the wind turbine blade 10 .

[0056] In one embodiment of the present application, see Figure 3 The thickness of the plate 20 is in the range of 2.5 mm to 4.0 mm. By setting the thickness of the plate 20 to be in the range of 2.5 mm to 4.0 mm, the structural strength of the anti-glare plate 30 can be effectively guaranteed, and the weight of the anti-glare plate 30 as a whole can be controlled, which is convenient for transportation and installation.

[0057] Optionally, the thickness of the plate 20 may be 2.5 mm, 3.00 mm, 4.0 mm, etc.

[0058] In one embodiment of the present application, see Figure 3 , the plate 20 is rectangular, the length of the plate 20 is in the range of 110mm-130mm, and the width of the plate 20 is in the range of 15mm-20mm. When the plate 20 is rectangular, by setting the length of the plate 20 to 110mm-130mm and the width of the plate 20 to 15mm-20mm, the surface area of ​​the plate 20 is larger, so that the anti-glare plate 30 has a better anti-glare effect, and the use of the anti-glare plate 30 of this size is conducive to controlling the weight and space occupation of the anti-glare plate 30, facilitating transportation and installation, and effectively avoiding the anti-glare plate 30 from occupying too much installation space.

[0059] Optionally, the length of the plate 20 may be 110 mm, 120 mm or 130 mm, etc.; the width of the plate 20 may be 15 mm, 16 mm, 17 mm, 18 mm, 19 mm or 20 mm, etc.

[0060] Of course, in other embodiments of the present application, the plate 20 may also be in other shapes, such as a triangle or a circle.

[0061] In one embodiment of the present application, step S20 specifically includes the following steps:

[0062] Step S21: Collect the cut plates 20.

[0063] Step S22: cleaning the surface of the plate 20. For example, cleaning the pollutants and attachments on the surface of the plate 20.

[0064] Step S23: inspect the plates 20 and select qualified plates. Specifically, after cleaning the plates 20, inspect the integrity and strength of the plates 20, and select the plates 20 whose integrity and strength meet the preset requirements as qualified plates, otherwise they are unqualified plates.

[0065] Step S24: grinding the qualified plate. For example, grinding the edge of the qualified plate to eliminate burrs generated during the cutting process.

[0066] Step S25: coating the surface of the qualified plate to obtain an anti-glare plate 30 .

[0067] In one embodiment of the present application, the surface coating of the qualified plate includes a waterproof coating, a corrosion-resistant coating and an anti-glare coating.

[0068] By coating a waterproof coating and a corrosion-resistant coating on the surface of a qualified plate, it is helpful to enhance the waterproofness, corrosion resistance and durability of the anti-glare plate 30, and help to extend the service life of the anti-glare plate 30. By coating an anti-glare coating on the surface of a qualified plate, the anti-glare plate 30 can meet the anti-glare function.

[0069] Optionally, the material of the waterproof coating may be, but is not limited to, polyurethane waterproof coating, acrylic waterproof coating, silicone waterproof coating, fluorocarbon waterproof coating or epoxy waterproof coating, etc.

[0070] Optionally, the corrosion-resistant coating may be, but is not limited to, a polyurethane anti-corrosion coating, a graphene anti-corrosion coating or a fluorocarbon anti-corrosion coating.

[0071] Optionally, the anti-glare coating may be, but is not limited to, a reflective coating, a light-absorbing coating, or a colored coating.

[0072] In one embodiment of the present application, see Figure 1 and Figure 4 , after step S20, further comprising:

[0073] Step S30, installing the anti-glare panel 30 on the traffic section 70. For example, the anti-glare panel 30 is installed on the concrete guardrail of the main road, the bridge guardrail or the central dividing strip of the expressway.

[0074] In one embodiment of the present application, step S30 specifically includes the following steps:

[0075] Step S31, placing the anti-glare panel 30 at a preset position of the traffic section 70. Set an installation point on the traffic section 70 where the anti-glare panel 30 needs to be installed, and set the distance between adjacent installation points, for example, set the distance between two adjacent installation points to be about 1m, and then place the anti-glare panel 30 at the location of the installation point.

[0076] Step S32: two clamping plates 40 are used to clamp the anti-glare plate 30 on opposite sides. Figure 5 .

[0077] Optionally, see Figure 6 and Figure 7 The clamping plate 40 is L-shaped. Specifically, the clamping plate 40 includes a vertical portion 41 and a horizontal portion 42 connected to each other. The vertical portion 41 is used to fit with the side of the anti-glare plate 30. The vertical portion 41 is provided with a first fixing hole, wherein the first fixing hole can be one or more. Specifically in this embodiment, the vertical portion 41 is provided with two first fixing holes, the two first fixing holes are arranged at intervals along the width direction of the vertical portion 41, and the first fixing holes are used to connect with the anti-glare plate 30. The horizontal portion 42 is provided at the bottom of the vertical portion 41 and extends out of the side of the vertical portion 41 away from the anti-glare plate 30. The horizontal portion 42 is provided with a second fixing hole, wherein the second fixing hole can be one or more. Specifically in this embodiment, the horizontal portion 42 is provided with two second fixing holes, the two second fixing holes are arranged at intervals along the width direction of the horizontal portion 42, and the second fixing holes are used to connect with the road surface.

[0078] The anti-glare plate 30 is provided with a mounting hole. The step of opening the mounting hole on the anti-glare plate 30 may be performed in step S20 or after step S20, for example, between step S24 and step S25, or after step S25.

[0079] Step S32 specifically includes: setting the first fixing hole on the clamping plate 40 corresponding to the mounting hole on the anti-glare plate 30, inserting the first fastener 50 into the correspondingly set first fixing hole and mounting hole, so that the clamping plate 40 and the anti-glare plate 30 are fixed together. The first fastener 50 can be a bolt or a screw.

[0080] Step S33, fix the clamping plate 40 on the traffic section 70. Specifically, the second fastener 60 is passed through the second fixing hole and inserted into the road surface, for example, the second fastener 60 is passed through the second fixing hole and inserted into the concrete guardrail. The second fastener 60 can be a bolt or a screw.

[0081] By using two clamping plates 40 to clamp the anti-glare panel 30 on opposite sides and fixing the clamping plates 40 to the anti-glare panel 30 and the road surface, the anti-glare panel 30 is easy to install, which helps to simplify the installation process of the anti-glare panel 30. It does not require complicated tools and procedures and is suitable for rapid deployment of the anti-glare panel 30 over a large area. It also provides a good fixing force for the anti-glare panel 30, so that the anti-glare panel 30 has good installation stability, ensuring that the anti-glare panel 30 is not easy to fall off or shift in harsh environments such as wind and sun. At the same time, it can also achieve rapid disassembly and replacement of the anti-glare panel 30, making it easy to replace or maintain the anti-glare panel 30, which helps to reduce the maintenance time and cost of the anti-glare panel 30.

[0082] See also Figure 2 and Figure 4The present application further provides an anti-glare plate 30, which is a molded part of a retired wind turbine blade 10. The anti-glare plate 30 is made by using the processing method of retired wind turbine blades in the above embodiment.

[0083] Optionally, the anti-glare plate 30 is a cut-formed part of the leading edge shell 11 or the trailing edge shell 12 of the retired wind turbine blade 10, such as Figure 2 .

[0084] The anti-glare plate 30 provided in the present application is a molded part of retired wind turbine blades 10, which can realize the recycling of retired wind turbine blades 10, avoid material waste, and is green and environmentally friendly, effectively reducing the pollution caused by retired wind turbine blades 10 to the environment. When the wind turbine blades 10 are retired, the overall structure of the wind turbine blades 10 and its insulation properties, mechanical properties, corrosion resistance, etc. are still maintained in good condition. Therefore, by making the wind turbine blades 10 into anti-glare plates 30, the anti-glare plates 30 have better structural properties and material properties, which can meet the long-term use requirements for road traffic facilities, and at the same time help to reduce the production cost of the anti-glare plates 30.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for processing retired wind turbine blades, characterized in that: include: Cutting wind turbine blades to obtain plates of preset sizes; The surface of the plate is treated to obtain an anti-glare plate.

2. The method for processing retired wind turbine blades according to claim 1, characterized in that: The plate is cut from the leading edge shell or the trailing edge shell of the wind turbine blade.

3. The method for processing retired wind turbine blades according to claim 2, characterized in that: The leading edge shell and the trailing edge shell both include a first plate layer, a middle layer and a second plate layer which are stacked in sequence. The first plate layer and the second plate layer are both resin composite materials, and the middle layer is sandwich foam.

4. The method for processing retired wind turbine blades according to claim 1, characterized in that: The thickness of the plate is in the range of 2.5 mm to 4.0 mm.

5. The method for processing retired wind turbine blades according to claim 1, characterized in that: The plate is rectangular, the length of the plate is in the range of 110 mm to 130 mm, and the width of the plate is in the range of 15 mm to 20 mm.

6. The method for processing retired wind turbine blades according to any one of claims 1 to 5, characterized in that: The surface of the plate is treated to obtain an anti-glare plate, comprising: collecting the cut plates; cleaning the surface of the plate; Testing the plates and selecting qualified plates; Grinding the qualified plate; The surface of the qualified plate is subjected to coating treatment to obtain an anti-glare plate.

7. The method for processing retired wind turbine blades according to claim 6, characterized in that: The surface coating of the qualified plate includes a waterproof coating, a corrosion-resistant coating and an anti-glare coating.

8. The method for processing retired wind turbine blades according to any one of claims 1 to 5, characterized in that: After "treating the surface of the plate to obtain an anti-glare plate", it also includes: The anti-glare plate is installed at a preset position of a traffic section.

9. The method for processing retired wind turbine blades according to claim 8, characterized in that: The anti-glare panel is installed on a traffic section, comprising: Placing the anti-glare plate at a preset position on a traffic section; Two clamping plates are respectively clamped on opposite sides of the anti-glare plate; The clamping plate is fixed on the traffic section.

10. An anti-glare plate, characterized in that: The anti-glare plate is a molded part of a retired wind turbine blade.

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