A type of anti-collision corner protection device for transporting and stacking concrete tower sections.

Abstract

This utility model relates to the field of protection technology for precast concrete tower sections of wind turbine towers, and in particular to a collision-resistant corner protection device for transporting and stacking concrete tower sections. It includes concrete tower sections, corner protectors, and corner guards. The corner protectors are bonded to the top or bottom of the concrete tower sections, and the corner guards are bonded to the corners of the concrete tower sections. The corner protectors have a U-shaped cross-section and wrap around the edge of the concrete tower section for at least 50mm. The corner guards have an L-shaped cross-section. This utility model, by bonding corner protectors to the top or bottom of the concrete tower sections and corner guards to the corners, provides comprehensive protection for the edges and corners of the tower sections. The U-shaped structure of the corner protectors and the L-shaped structure of the corner guards effectively prevent damage to the tower sections during transport and stacking due to collisions, reduce wear on the edges and corners, and extend the service life of the tower sections.

Description

Technical Field

[0001] This utility model relates to the field of protection technology for precast concrete tower sections of wind turbine towers, and in particular to a corner protection device for transporting and stacking concrete tower sections to prevent collisions. Background Technology

[0002] Traditionally, wind turbines used in wind power generation employ steel conical towers as their ground support structure, consisting of an upper tower and a lower foundation. With the rapid development of my country's wind power industry, the capacity of individual wind turbine units is increasing. To effectively utilize wind energy resources in low-wind-speed areas, wind turbine units are gradually becoming larger and higher-altitude. The requirements for the hub height and rigidity of the towers are also constantly increasing. Currently, traditional towers in my country use steel structures. However, when the hub height exceeds 120m, the size limitations of long-distance transportation of steel tower sections, tower resonance issues, and the need for frequent disassembly and assembly make it difficult to achieve ideal results in the construction, transportation, operation, and maintenance of flexible steel towers, thus limiting the development of high-tower wind turbine units.

[0003] To solve the above technical problems, a concrete-steel cylinder hybrid tower is adopted to reduce the height of the steel tower and increase the hub height. The lower part of the concrete-steel cylinder hybrid tower uses a concrete tower and the upper part uses a steel tower.

[0004] The existing tower sections are prestressed concrete tower sections assembled vertically in sections. During the transportation of the concrete tower sections from the prefabrication yard to the hoisting site, the sections may collide with the flatbed trucks due to the bumpy road. The unevenness of the floor in the tower section storage yard and hoisting site also makes the tower sections prone to damage during loading and unloading. Because concrete is a brittle material, the tower sections are prone to chipping and breaking off corners. On-site repair of tower sections is difficult. Therefore, using protective devices can protect the tower sections from damage to the greatest extent possible.

[0005] Currently, rubber pads or wooden supports are mostly used for protection during the transportation of concrete tower sections, but the following problems exist: rubber pads are not hard enough and cannot effectively disperse impact force; wooden supports are prone to moisture and deformation, resulting in low reuse rate; existing protective devices cannot simultaneously cover the bottom, corners and top of the tower sections, which are key stress points. Utility Model Content

[0006] This utility model is a concrete tower sheet transportation and stacking anti-collision corner protection device proposed to overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A concrete tower plate transportation and stacking anti-collision corner protection device includes a concrete tower plate, tower plate corner protectors, and tower plate corner protectors. The tower plate corner protectors are bonded to the top or bottom of the concrete tower plate, and the tower plate corner protectors are bonded to the corners of the concrete tower plate. The cross-section of the tower plate corner protector is U-shaped and the length of the corner protector wrapping around the edge of the concrete tower plate is not less than 50mm. The cross-section of the tower plate corner protector is L-shaped.

[0008] Through the above technical solution, the device protects the edges and corners of the concrete tower sections by bonding tower section corner protectors to the top or bottom of the tower sections and to the corners of the tower sections. The tower section corner protectors have a U-shaped cross-section, which can wrap around the edge of the tower section for a length of not less than 50mm, effectively preventing the edge from colliding with other objects during transportation and stacking, thereby reducing wear and damage to the edge. The tower section corner protectors have an L-shaped cross-section, which is specifically designed to protect the corners of the tower sections and prevent the corners from being damaged by collisions.

[0009] Effectively prevents damage to the tower plates caused by collisions during transportation and stacking, extending the service life of the tower plates. The U-shaped and L-shaped structure design facilitates bonding and fixing, eliminating the need for complicated installation tools and processes.

[0010] Preferably, both the tower plate corner protector and the tower plate corner protector include a corner protector base layer. An internal buffer layer is provided on the upper side of the corner protector base layer, an external buffer layer is provided on the upper side of the internal buffer layer, an adhesive layer is provided on the upper side of the external buffer layer, a weather-resistant coating is provided on the lower side of the corner protector base layer, and a self-cleaning anti-stick layer is provided on the lower side of the weather-resistant coating.

[0011] Through the above technical solution, both the tower tray corner protector and the tower tray corner protector include a corner protector base layer, an internal buffer layer, an external buffer layer, and an adhesive layer. The underside of the corner protector base layer is provided with a weather-resistant coating and a self-cleaning anti-stick layer. This multi-layer composite structure design enables the corner protector device to have multiple functions. The internal buffer layer and the external buffer layer can absorb and disperse collision energy, reducing the impact on the tower tray. The adhesive layer is used to firmly bond the corner protector to the surface of the tower tray. The weather-resistant coating and the self-cleaning anti-stick layer provide additional protection to prevent the corner protector from aging or being contaminated due to environmental factors.

[0012] Preferably, the built-in buffer layer is made of EVA honeycomb panel components, the honeycomb pore size of the EVA honeycomb panel components is 3-5mm, and the EVA honeycomb panel components are fitted into the corner protection base layer.

[0013] The above technical solution utilizes EVA honeycomb panels with a pore size of 3-5mm, which are fitted into the corner protection base layer. EVA honeycomb panels possess excellent elastic buffering performance, capable of absorbing energy through the deformation of the honeycomb structure when subjected to external impact, thereby reducing the impact force on the tower sections.

[0014] Preferably, the external buffer layer includes an elastic frame and hemispherical protrusions, the elastic frame is disposed on the upper side of the corner protector base layer, and a plurality of the hemispherical protrusions are disposed within the elastic frame.

[0015] Preferably, the hemispherical protrusion has a hollow structure inside, and the diameter of the hemispherical protrusion is 2-3 mm and the height is 1-1.5 mm.

[0016] Through the above technical solution, the external buffer layer includes an elastic frame and a hemispherical protrusion. The elastic frame is set on the upper side of the corner protector base layer, and the hemispherical protrusion is set inside the elastic frame. The interior of the hemispherical protrusion has a hollow structure with a diameter of 2-3mm and a height of 1-1.5mm. This structural design allows the hemispherical protrusion to undergo elastic deformation when the external buffer layer is subjected to external force, further absorbing and dispersing the collision energy. At the same time, the elastic frame can provide overall support and stability.

[0017] Preferably, the weather-resistant coating is a polyurea elastomer coating with a thickness of 0.3-0.5 mm and a temperature resistance range of 50℃~120℃.

[0018] Through the above technical solution, the weather-resistant coating adopts a polyurea elastomer coating with a thickness of 0.3-0.5mm and a temperature resistance range of 50℃~120℃. The polyurea elastomer coating has excellent weather resistance, wear resistance and impact resistance, and can effectively resist the erosion of the corner protector base layer by external environmental factors (such as ultraviolet rays, temperature changes, humidity, etc.) while maintaining the elasticity and toughness of the coating.

[0019] Preferably, the self-cleaning non-stick layer is made of nano-titanium dioxide coating.

[0020] Through the above technical solution, the self-cleaning anti-stick layer adopts a nano titanium dioxide coating. Nano titanium dioxide has photocatalytic self-cleaning properties, which can decompose dirt and contaminants on the surface under light conditions. At the same time, it has good anti-stick properties, preventing dust and debris from adhering to the corner protector surface, thereby reducing maintenance workload.

[0021] Preferably, the corner protector base layer is a multi-layer composite structure, including a matrix layer, a reinforcing layer and a functional layer. The matrix layer is composed of polyurethane elastomer with a Shore hardness of 70A-90A, a tensile strength ≥20MPa, and an elongation at break ≥300%. The reinforcing layer is composited on the surface of the matrix layer and is composed of a basalt fiber woven mesh with a fiber content of 8-12 wt%. The functional layer, covering the outside of the reinforcing layer, is made of shape memory polyurethane modified elastomer with a thickness of 0.5-2 mm.

[0022] Through the above technical solution, the corner protector base layer is a multi-layer composite structure, including a matrix layer, a reinforcement layer, and a functional layer. The matrix layer is made of polyurethane elastomer, which has good elasticity and mechanical properties. The reinforcement layer is made of basalt fiber woven mesh, which can improve the strength and impact resistance of the base layer. The functional layer is made of shape memory polyurethane modified elastomer, which has shape memory function and can restore its original shape after being deformed by external force. This multi-layer composite structure design enables the corner protector base layer to have high strength, high elasticity, and shape memory function.

[0023] Preferably, the adhesive layer includes a double-sided adhesive sheet and a micro permanent magnet. The double-sided adhesive sheet is disposed on the upper side of the outer buffer layer, and the micro permanent magnet is embedded on the lower side of the double-sided adhesive sheet. The double-sided adhesive sheet is made of acrylic foam tape with a thickness of 1-3 mm, and the micro permanent magnet has a thickness of 1-2 mm and a surface magnetic induction intensity of 0.1-0.2 T.

[0024] The above technical solution includes a double-sided adhesive sheet and a micro permanent magnet. The double-sided adhesive sheet is made of acrylic foam tape with a thickness of 1-3mm, which has good adhesive performance. The micro permanent magnet is embedded on the underside of the double-sided adhesive sheet with a thickness of 1-2mm and a surface magnetic induction intensity of 0.1-0.2T. During the bonding process, the double-sided adhesive sheet can firmly bond the corner protectors to the surface of the tower plate, while the micro permanent magnet can further enhance the stability of the bonding and prevent the corner protectors from falling off due to vibration during transportation and stacking.

[0025] In summary, this utility model provides comprehensive protection for the edges and corners of the concrete tower sections by bonding tower section corner protectors to the top or bottom of the sections and to the corners of the sections. The U-shaped structure of the tower section corner protectors and the L-shaped structure of the tower section corner protectors effectively prevent the tower sections from being damaged by collisions during transportation and stacking, reduce wear on the edges and corners, and extend the service life of the tower sections.

[0026] This utility model adopts a multi-layer composite structure, including a corner protector base layer, an internal buffer layer, an external buffer layer, an adhesive layer, a weather-resistant coating, and a self-cleaning anti-stick layer. This design enables the corner protector to not only have good cushioning performance, but also resist the erosion of external environmental factors, while reducing the adhesion of dirt and debris and reducing maintenance costs.

[0027] This invention utilizes an EVA honeycomb panel with a built-in buffer layer and a honeycomb pore size of 3-5mm to effectively absorb and disperse collision energy, reducing the impact on the tower plates. The elastic frame and hemispherical protrusion structure of the external buffer layer further enhance the buffering effect. Through the elastic deformation of the hemispherical protrusions, it can better cope with collisions of different directions and intensities, protecting the tower plates from damage.

[0028] This invention utilizes an adhesive layer comprising a double-sided adhesive sheet and a miniature permanent magnet. The double-sided adhesive sheet is made of acrylic foam tape, which has excellent adhesive properties. The miniature permanent magnet further enhances the stability of the bond, preventing the corner protectors from detaching due to vibration during transportation and stacking. This dual-bonding method ensures a firm connection between the corner protectors and the tower plates, improving the overall protective performance. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0030] In the diagram: 1. Concrete tower section; 2. Tower section corner protector; 3. Tower section corner protector; 4. Corner protector base layer; 5. Built-in buffer layer; 6. External buffer layer; 61. Elastic frame; 62. Hemispherical protrusion; 7. Adhesive layer; 71. Double-sided adhesive sheet; 72. Miniature permanent magnet; 8. Weather-resistant coating; 9. Self-cleaning anti-stick layer. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] like Figures 1-2 As shown, a concrete tower plate transportation and stacking anti-collision corner protection device is provided. The U-shaped structure of the tower plate corner protection 2 is aligned with the top or bottom edge of the concrete tower plate 1, ensuring that the length of the corner protection covering the edge of the tower plate is not less than 50mm. The tower plate corner protection is pasted to the surface of the tower plate by the double-sided adhesive plate 71 of the adhesive layer 7, and the magnetic force of the micro permanent magnet 72 is used to further fix it to ensure a firm bond.

[0033] Installation of the corner protector 3 of the tower plate: Align the L-shaped structure of the corner protector 3 of the tower plate with the corner of the concrete tower plate 1, and ensure that the corner protector fits tightly against the corner of the tower plate. Similarly, the corner protector of the tower plate is pasted to the surface of the tower plate by the double-sided adhesive plate 71 of the adhesive layer 7 and the miniature permanent magnet 72, ensuring that the corner protector is tightly bonded to the tower plate.

[0034] Protection during transportation: During the transportation of concrete tower plates, the corner protection device can effectively absorb and disperse collision energy, preventing damage to the edges and corners of the tower plates due to collision. The weather-resistant coating 8 and the self-cleaning anti-stick layer 9 can resist the erosion of external environmental factors and maintain the stable performance of the corner protection device.

[0035] Protection during stacking: During the stacking of concrete tower sections 1, the corner protectors 2 and corner protectors 3 can prevent the tower sections from colliding with each other and reduce wear. The corner protector base layer 4 with shape memory function can automatically restore its original shape after being deformed by external force, ensuring the long-term effective protection of the corner protector device.

[0036] In this embodiment,

[0037] Substrate layer: The substrate layer is made of polyurethane elastomer material and is prepared by casting molding process to ensure that its Shore hardness reaches 70A-90A, tensile strength ≥20MPa, and elongation at break ≥300%.

[0038] Reinforcing layer: Basalt fiber woven mesh is composited on the surface of the matrix layer, with the fiber content controlled at 8-12wt%. It is then tightly bonded to the matrix layer through a hot pressing process to enhance the overall strength and impact resistance.

[0039] Functional layer: A shape memory polyurethane modified elastomer material is coated on the outside of the reinforcing layer to form a functional layer with a thickness controlled between 0.5-2mm, giving the corner protector base layer shape memory function.

[0040] EVA honeycomb panel components are used as the built-in buffer layer 5, with a honeycomb pore size of 3-5mm. The EVA honeycomb panel components are fitted into the inner side of the corner protection base layer 4, and their secure installation is ensured by adhesive or mechanical fixing.

[0041] Elastic frame 61: An elastic frame 61 is installed on the upper side of the corner protection base 4. The elastic frame 61 is made of elastic material and can provide good support and cushioning performance.

[0042] Hemispherical bump 62: Several hemispherical bumps 62 are installed inside the elastic frame 61. The interior of the hemispherical bump 62 is hollow, with a diameter of 2-3 mm and a height of 1-1.5 mm. The hemispherical bumps 62 are prepared by injection molding and evenly distributed inside the elastic frame 61 to form an external buffer layer 6.

[0043] Application of weather-resistant coating 8 and self-cleaning non-stick layer 9: A polyurea elastomer coating with a thickness of 0.3-0.5 mm is applied to the underside of the corner protector base layer 4 to ensure uniform coverage and provide good weather resistance and impact resistance.

[0044] A nano-titanium dioxide coating is applied to the underside of the weather-resistant coating 8 to form a self-cleaning and non-stick layer. The photocatalytic properties of the coating enable the self-cleaning and non-stick functions.

[0045] Double-sided adhesive board 71 is pasted on the upper side of the outer buffer layer 6. Acrylic foam tape with a thickness of 1-3mm is used to ensure good adhesion.

[0046] A miniature permanent magnet 72 with a thickness of 1-2 mm and a surface magnetic induction intensity of 0.1-0.2 T is embedded on the underside of the double-sided adhesive sheet 71 to further enhance the stability of the bond through magnetic force.

[0047] The prepared corner protector base layer, built-in buffer layer, external buffer layer, adhesive layer, weather-resistant coating and self-cleaning anti-stick layer are assembled in sequence to form the complete tower plate corner protector 2 and tower plate corner protector 3.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete tower segment transportation and stacking anti-collision corner protection device, comprising a concrete tower drum segment (1), characterized in that, It also includes tower plate corner protectors (2) and tower plate corner protectors (3). The tower plate corner protectors (2) are bonded to the top or bottom of the concrete tower plate (1). The tower plate corner protectors (3) are bonded to the corner of the concrete tower plate (1). The cross-section of the tower plate corner protector (2) is U-shaped and the length of the corner protector wrapping the edge of the concrete tower plate (1) is not less than 50mm. The cross-section of the tower plate corner protector (3) is L-shaped.

2. A concrete panel transport and storage crash corner device according to claim 1 wherein, Both the tower plate corner protector (2) and the tower plate corner protector (3) include a corner protector base layer (4). An internal buffer layer (5) is provided on the upper side of the corner protector base layer (4). An external buffer layer (6) is provided on the upper side of the internal buffer layer (5). An adhesive layer (7) is provided on the upper side of the external buffer layer (6). A weather-resistant coating (8) is provided on the lower side of the corner protector base layer (4). A self-cleaning anti-stick layer (9) is provided on the lower side of the weather-resistant coating (8).

3. A concrete panel transport and storage crash corner device according to claim 2, wherein, The built-in buffer layer (5) is made of EVA honeycomb panel components. The honeycomb pore size of the EVA honeycomb panel components is 3-5mm. The EVA honeycomb panel components are fitted into the corner protection base layer (4).

4. A concrete panel transport and storage crash corner device according to claim 2, wherein, The external buffer layer (6) includes an elastic frame (61) and hemispherical protrusions (62). The elastic frame (61) is disposed on the upper side of the corner protection base layer (4), and a plurality of hemispherical protrusions (62) are disposed inside the elastic frame (61).

5. A concrete panel transport and storage crash corner device according to claim 4, wherein, The hemispherical protrusion (62) has a hollow structure inside, and the diameter of the hemispherical protrusion (62) is 2-3 mm and the height is 1-1.5 mm.

6. A concrete panel transport and storage crash corner device according to claim 2 wherein, The weather-resistant coating (8) is a polyurea elastomer coating with a thickness of 0.3-0.5 mm and a temperature resistance range of 50℃~120℃.

7. A concrete panel transport and storage crash corner device according to claim 2 wherein, The self-cleaning non-stick layer (9) is made of nano-titanium dioxide coating.

8. A concrete panel transport and storage crash corner device according to claim 2, wherein, The corner protector base layer (4) is a multi-layer composite structure, including: The matrix layer is composed of polyurethane elastomer with a Shore hardness of 70A-90A, tensile strength ≥20MPa, and elongation at break ≥300%. The reinforcing layer, which is composited on the surface of the matrix layer, is composed of a basalt fiber woven mesh with a fiber content of 8-12 wt%. The functional layer, which covers the outside of the reinforcing layer, is made of shape memory polyurethane modified elastomer and has a thickness of 0.5-2 mm.

9. A concrete panel transport and storage crash corner device according to claim 2, wherein, The adhesive layer (7) includes a double-sided adhesive sheet (71) and a micro permanent magnet (72). The double-sided adhesive sheet (71) is disposed on the upper side of the external buffer layer (6), and the micro permanent magnet (72) is embedded on the lower side of the double-sided adhesive sheet (71). The double-sided adhesive sheet (71) is made of acrylic foam tape with a thickness of 1-3 mm. The micro permanent magnet (72) has a thickness of 1-2 mm and a surface magnetic induction intensity of 0.1-0.2 T.

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