A corrosion protection device for the exterior of offshore wind turbine towers

Abstract

This invention relates to the technical field of wind turbine tower protection devices, and discloses an external anti-corrosion protection device for offshore wind turbine towers. The device includes a protective frame and protective plates. The wind turbine tower is housed inside the protective frame, which is installed on the outer wall of the tower. An operating platform is fixedly connected to the top of the protective frame, and a guardrail is fixedly connected to the operating platform. Multiple protective compartments and control compartments are arranged on the surface of the protective frame, with the protective compartments positioned between every two control compartments. Sealing plates are installed on the surface of each control compartment. Multiple protective plates are disposed inside the protective compartments, all vertically arranged. Each protective compartment contains a moving mechanism for the movable protective plates. This invention, through the arrangement of multiple moving plates, allows for the sliding of multiple protective plates, facilitating maintenance or replacement of each plate during use. This effectively improves the ease of use and makes subsequent maintenance more convenient.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower protection devices, and in particular to an external corrosion protection device for offshore wind turbine towers. Background Technology

[0002] Offshore wind turbine towers are structures used to support offshore wind turbine generators. They are typically made of steel or concrete and designed to withstand the strong winds and waves of the marine environment. Offshore wind power offers higher power generation efficiency and lower land use conflicts. Offshore wind farms refer to near-shore wind power located in waters approximately 10 meters deep. Compared to onshore wind farms, the main advantages of offshore wind farms are that they do not occupy land resources and reduce conflicts with other land uses.

[0003] However, offshore wind power also faces some challenges, such as high construction and maintenance costs, complex construction environments, and potential impacts on marine ecosystems. In particular, the exterior of wind turbine towers is constantly immersed in seawater, which easily causes corrosion and accumulates a lot of deposits, thus affecting their service life. A protective plate is usually installed on the outside of the tower. However, some existing protective devices on the outside of offshore wind turbine towers are inconvenient to disassemble after long-term use. Usually, the entire protective device needs to be removed for maintenance, making it difficult to replace later. Moreover, the areas on the protective device that need maintenance may be different, but only the whole device can be replaced at the same time, which increases the maintenance difficulty. Therefore, it is necessary to solve the above problems. Summary of the Invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes an external anti-corrosion protection device for offshore wind turbine towers.

[0005] This invention proposes an external corrosion protection device for offshore wind turbine towers, comprising a protective frame and protective plates. The wind turbine tower is housed inside the protective frame, which is installed on the outer wall of the tower. An operating platform is fixedly connected to the top of the protective frame, and a guardrail is fixedly connected to the operating platform. Multiple protective compartments and control compartments are arranged on the surface of the protective frame, with the protective compartments positioned between every two control compartments. Sealing plates are installed on the surface of each control compartment. Multiple protective plates are provided, each housed within a protective compartment and arranged vertically. Each protective compartment contains a moving mechanism for the protective plates. The multiple moving plates allow for the sliding of each protective plate, facilitating maintenance or replacement during use. This effectively improves the ease of use and makes subsequent maintenance more convenient.

[0006] Preferably, the moving mechanism includes a moving plate slidably connected to the inside of the protective chamber. The protective plate is disposed on the surface of the moving plate. A fixed column is vertically fixedly connected to the side of the moving plate away from the protective plate. Two second connecting shafts are rotatably sleeved inside the fixed column. Both second connecting shafts are horizontally arranged. Support rods are rotatably sleeved at both ends of the two second connecting shafts. The four support rods are paired in pairs and rotatably connected to symmetrical sides of the surface of the fixed column. Two first connecting shafts are rotatably connected inside the protective chamber. Both first connecting shafts are horizontally arranged. The two ends of the two first connecting shafts are rotatably sleeved inside two adjacent control chambers. The top ends of the four support rods are fixedly connected to the two ends of the two first connecting shafts to restrict the rotation of the two pairs of support rods, thereby driving the moving plate to slide.

[0007] Furthermore, two worm gears are rotatably connected inside the control compartment, and both worm gears are fixedly connected to one end of two first connecting shafts. A rotating shaft is rotatably connected inside the control compartment, and the rotating shaft is vertically arranged. The bottom of the rotating shaft is rotatably connected to the bottom of the control compartment, and the top of the rotating shaft is inserted through the top of the operating table. Two worms are rotatably connected inside the control compartment, and the two worms respectively cooperate with the two worm gears. Both worms are sleeved on the surface of the rotating shaft. The upper and lower ends of the moving plate are respectively provided with limiting mechanisms for limiting protective plates, which are used to rotate the rotating shaft. With the cooperation of the two worms and worm gears, the two pairs of first connecting shafts will rotate, thereby facilitating the sliding of the moving plate.

[0008] Preferably, the limiting mechanism includes a support plate and a sliding sleeve. The support plate is horizontally slidably connected to the surface of the movable plate. A placement groove is provided at the top of the support plate, and the bottom of the protective plate is disposed inside the placement groove. Two connecting columns are horizontally fixedly connected to the surface of the support plate. Both connecting columns are slidably sleeved on the surface of the movable plate. A rack is provided at the top of each of the two connecting columns. The bottom ends of the two support rods at the bottom are semi-circular and have multiple tooth blocks at their bottom ends. The multiple tooth blocks are arranged in a ring and mesh with the two racks respectively. When the support rods are rotated, the support plate slides under the cooperation of the tooth blocks and racks, so that the protective plate separates from the movable plate.

[0009] Furthermore, the sliding sleeve is vertically slidably connected to the top of the movable plate, and the top of the fixed column has a vertically opened groove. A slider is vertically slidably connected inside the groove, and a lead screw is rotatably connected inside the groove. The lead screw is vertically arranged and rotatably sleeved inside the slider. The slider cooperates with the groove, and the top of the lead screw is inserted through the top of the fixed column. A rotating block is rotatably connected to the top of the fixed column, and the rotating block is fixedly connected to the top of the lead screw. Two fixed rods are fixedly connected to the surface of the slider, and both ends of the sliding sleeve are respectively fixedly connected to the tops of the two fixed rods for sliding the sliding sleeve. This restricts the top of the protective plate, making the installation of the protective plate more convenient and stable.

[0010] In this invention, the device uses multiple movable plates to drive multiple protective plates to slide, which facilitates the maintenance or replacement of any one of the protective plates during use without having to remove all of them. This effectively improves the ease of use of the device and makes subsequent maintenance more convenient, reducing the maintenance cost of the device.

[0011] When one of the protective plates is moved during use, the support plate will slide simultaneously, causing the support plate to slide a certain distance away from the moving plate. This makes it easier to remove the protective plate when it is replaced, thus improving the convenience of the device. At the same time, when installing the protective plate, the support plate can clamp the protective plate, making the installation of the protective plate more stable and thus improving the effectiveness of the device.

[0012] When maintaining or replacing the protective plate, the sliding sleeve allows for up-and-down sliding during use, making the installation of the protective plate more stable and thus improving the effectiveness of the device. Attached Figure Description

[0013] Figure 1 This is a front view of an external corrosion protection device for offshore wind turbine towers proposed in this invention;

[0014] Figure 2 This is a schematic diagram of the surface structure of a protective frame for an external anti-corrosion protection device for offshore wind turbine towers proposed in this invention;

[0015] Figure 3 This is a cross-sectional view of the internal structure of a protective frame for an external corrosion protection device for offshore wind turbine towers, as proposed in this invention.

[0016] Figure 4 This is a schematic diagram of a moving mechanism for an external corrosion protection device for offshore wind turbine towers proposed in this invention;

[0017] Figure 5This is a partial structural cross-sectional view of an external anti-corrosion protection device for offshore wind turbine towers proposed in this invention;

[0018] Figure 6 for Figure 5 Enlarged view of point A;

[0019] Figure 7 for Figure 5 Enlarged view of point B.

[0020] In the diagram: 1. Wind turbine tower; 2. Protective frame; 21. Protective compartment; 22. Control compartment; 3. Control panel; 31. Guardrail; 4. Protective plate; 5. Support plate; 51. Placement slot; 52. Connecting column; 53. Rack; 6. Sealing plate; 7. Moving plate; 71. Fixed column; 72. Slide groove; 73. Lead screw; 74. Rotating block; 8. Support rod; 81. First connecting shaft; 82. Second connecting shaft; 83. Worm gear; 84. Rotating shaft; 85. Worm; 86. Rotating wheel; 87. Gear block; 9. Sliding sleeve; 91. Fixed rod; 92. Sliding block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Reference Figures 1-7 An external corrosion protection device for offshore wind turbine towers includes a protective frame 2 and protective plates 4. The wind turbine tower 1 is housed inside the protective frame 2, which is installed on the outer wall of the tower 1. An operating platform 3 is fixedly connected to the top of the protective frame 2, and a guardrail 31 is fixedly connected to the operating platform 3. Multiple protective chambers 21 and control chambers 22 are provided on the surface of the protective frame 2. The multiple protective chambers 21 are respectively located between every two control chambers 22. Sealing plates 6 are installed on the surface of each of the multiple control chambers 22. Multiple protective plates 4 are provided, each located inside one of the multiple protective chambers 21. All protective plates 4 are vertically arranged. Each of the multiple protective chambers 21 has a moving mechanism for the protective plates 4. The multiple moving plates 7 allow for the sliding of each protective plate 4, facilitating maintenance or replacement of each protective plate 4 during use. This effectively improves the ease of use of the device and makes subsequent maintenance more convenient.

[0023] Reference Figures 1-4In a preferred embodiment, the moving mechanism includes a moving plate 7, which is slidably connected to the inside of the protective chamber 21. A protective plate 4 is disposed on the surface of the moving plate 7. A fixed column 71 is vertically fixedly connected to the side of the moving plate 7 away from the protective plate 4. Two second connecting shafts 82 are rotatably sleeved inside the fixed column 71. Both second connecting shafts 82 are horizontally arranged. Support rods 8 are rotatably sleeved at both ends of the two second connecting shafts 82. The four support rods 8 are paired in pairs and are rotatably connected to symmetrical sides of the surface of the fixed column 71. Two first connecting shafts 81 are rotatably connected inside the protective chamber 21. Both first connecting shafts 81 are horizontally arranged. The two ends of the two first connecting shafts 81 are rotatably sleeved inside two adjacent control chambers 22. The top ends of the four support rods 8 are fixedly connected to the two ends of the two first connecting shafts 81 to restrict the rotation of the two pairs of support rods 8, thereby driving the moving plate 7 to slide.

[0024] Reference Figure 1 and Figure 4 In a preferred embodiment, two worm gears 83 are rotatably connected inside the control chamber 22. Both worm gears 83 are fixedly connected to one end of two first connecting shafts 81. A rotating shaft 84 is rotatably connected inside the control chamber 22. The rotating shaft 84 is vertically arranged, with its bottom rotatably connected to the bottom of the control chamber 22 and its top inserted through the top of the operating table 3. Two worms 85 are rotatably connected inside the control chamber 22, each cooperating with one of the two worm gears 83. Both worms 85 are sleeved on the surface of the rotating shaft 84. The upper and lower ends of the moving plate 7 are respectively provided with limiting mechanisms of limiting protective plates 4, which allow the rotating shaft 84 to rotate. With the cooperation of the two worms 85 and the worm gears 83, the two pairs of first connecting shafts 81 will rotate, thus facilitating the sliding of the moving plate 7.

[0025] Reference Figure 5 and Figure 6 In a preferred embodiment, the limiting mechanism includes a support plate 5 and a sliding sleeve 9. The support plate 5 is horizontally slidably connected to the surface of the movable plate 7. The top of the support plate 5 is provided with a placement groove 51, and the bottom of the protective plate 4 is disposed inside the placement groove 51. Two connecting posts 52 are horizontally fixedly connected to the surface of the support plate 5. Both connecting posts 52 are slidably sleeved on the surface of the movable plate 7. Both connecting posts 52 are provided with racks 53 at their tops. The bottom ends of the two support rods 8 at the bottom are semi-circular. The bottom ends of the two support rods 8 at the bottom are provided with multiple tooth blocks 87. The multiple tooth blocks 87 are arranged in a ring. The multiple tooth blocks 87 mesh with the two racks 53 respectively. When the support rods 8 are rotated, the support plate 5 slides under the cooperation of the tooth blocks 87 and the racks 53, so that the protective plate 4 is separated from the movable plate 7.

[0026] Reference Figure 5 and Figure 7In a preferred embodiment, the sliding sleeve 9 is vertically slidably connected to the top of the movable plate 7. The top of the fixed column 71 is vertically provided with a groove 72. A slider 92 is vertically slidably connected inside the groove 72. A lead screw 73 is rotatably connected inside the groove 72. The lead screw 73 is vertically arranged and rotatably sleeved inside the slider 92. The slider 92 cooperates with the groove 72. The top of the lead screw 73 is inserted through the top of the fixed column 71. A rotating block 74 is rotatably connected to the top of the fixed column 71. The rotating block 74 is fixedly connected to the top of the lead screw 73. Two fixed rods 91 are fixedly connected to the surface of the slider 92. The two ends of the sliding sleeve 9 are respectively fixedly connected to the tops of the two fixed rods 91 for sliding the sliding sleeve 9, thereby restricting the top of the protective plate 4, making the installation of the protective plate 4 more convenient and stable.

[0027] In this invention, the multiple movable plates 7 allow for the sliding of multiple protective plates 4 during actual use, facilitating maintenance or replacement of each protective plate 4 and effectively improving the ease of use and maintenance. During operation, the multiple rotating wheels 86 on the top of the operating platform 3 rotate, driving the rotating shaft 84 and two worm gears 85 to rotate. The two worm gears 83, in turn, cause the two first connecting shafts 81 to rotate. With the four support rods 8 connected, the movable plates 7 slide outwards from the protective chamber 21. Simultaneously, the two support rods 8 at the bottom cause multiple toothed blocks 87 to drive the two racks 53 and connecting columns 52 to slide, allowing the support plate 5 to slide away from the surface of the movable plates 7, thus enabling the protective plates 4 to slide. The bottom of the protective plate 4 is separated from the surface of the movable plate 7, facilitating maintenance and replacement. After the protective plate 4 slides out of the protective chamber 21, the rotating block 74 can be rotated. The rotating block 74 can be used with some common power tools to rotate it, which will also drive the lead screw 73 to rotate, thereby causing the slider 92 to slide up and down. When the slider 92 slides upward, it will also drive the sliding sleeve 9 to slide, thereby removing the restriction on the surface of the protective plate 4 and making it easier to remove the protective plate 4. At the same time, the sliding sleeve 9 has a certain degree of elasticity. When the bottom of the protective plate 4 is away from the movable plate 7, the separation distance between the top of the protective plate 4 and the movable plate 7 will only be a small distance, which will not affect the sliding sleeve 9, thus facilitating the replacement of the protective plate 4 and reducing the maintenance difficulty of the device.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A corrosion protection device for the exterior of offshore wind turbine towers, comprising a protective frame (2) and a protective plate (4), characterized in that: The protective frame (2) is provided with a wind turbine tower (1) inside. The protective frame (2) is installed on the outer wall of the wind turbine tower (1). An operating platform (3) is fixedly connected to the top of the protective frame (2). A guardrail (31) is fixedly connected to the operating platform (3). Multiple protective compartments (21) and control compartments (22) are provided on the surface of the protective frame (2). The multiple protective compartments (21) are respectively located between every two control compartments (22). A sealing plate (6) is installed on the surface of each of the multiple control compartments (22). The protective plate (4) is provided in multiple ways, and the multiple protective plates (4) are respectively arranged inside multiple protective compartments (21). The multiple protective plates (4) are all arranged vertically, and the multiple protective compartments (21) are all provided with a moving mechanism for moving the protective plate (4). The moving mechanism includes a moving plate (7), which is slidably connected to the inside of the protective chamber (21). The protective plate (4) is disposed on the surface of the moving plate (7). A fixed column (71) is vertically fixedly connected to the side of the moving plate (7) away from the protective plate (4). Two second connecting shafts (82) are rotatably sleeved inside the fixed column (71). Both second connecting shafts (82) are horizontally arranged. Support rods (8) are rotatably sleeved at both ends of the two second connecting shafts (82). The four support rods (8) are paired in pairs and rotatably connected to the fixed column (71) respectively. On both sides of the surface, the protective chamber (21) is rotatably connected to two first connecting shafts (81). The two first connecting shafts (81) are both horizontally arranged. The two ends of the two first connecting shafts (81) are respectively rotatably fitted inside the two adjacent control chambers (22). The top ends of the four support rods (8) are respectively fixedly connected to the two ends of the two first connecting shafts (81). The control chamber (22) is rotatably connected to two worm gears (83). The two worm gears (83) are respectively fixedly connected to one end of the two first connecting shafts (81). The control chamber (22) is rotatably connected to a rotating shaft (84). 4) The shaft (84) is vertically arranged. The bottom of the shaft (84) is rotatably connected to the bottom of the control compartment (22). The top of the shaft (84) is inserted into the top of the operating table (3). Two worm gears (85) are rotatably connected inside the control compartment (22). The two worm gears (85) are respectively engaged with two worm wheels (83). The two worm gears (85) are sleeved on the surface of the shaft (84). The upper and lower ends of the moving plate (7) are respectively provided with limiting mechanisms for limiting protective plates (4). The limiting mechanism includes a support plate (5) and a sliding sleeve (9). The support plate (5) is horizontally slidably connected to the surface of the moving plate (7). (5) A placement groove (51) is provided at the top. The bottom of the protective plate (4) is located inside the placement groove (51). Two connecting columns (52) are horizontally fixedly connected to the surface of the support plate (5). The two connecting columns (52) are slidably sleeved on the surface of the moving plate (7). The top of the two connecting columns (52) is provided with a rack (53). The bottom ends of the two support rods (8) at the bottom are semi-circular. The bottom ends of the two support rods (8) at the bottom are provided with multiple tooth blocks (87). The multiple tooth blocks (87) are distributed in a ring. The multiple tooth blocks (87) mesh with the two racks (53) respectively.

2. The anti-corrosion protection device for the external structure of offshore wind turbine towers according to claim 1, characterized in that, The sliding sleeve (9) is vertically slidably connected to the top of the moving plate (7). The top of the fixed column (71) is vertically provided with a sliding groove (72). A slider (92) is vertically slidably connected inside the sliding groove (72). A lead screw (73) is rotatably connected inside the sliding groove (72). The lead screw (73) is vertically arranged and rotatably sleeved inside the slider (92). The slider (92) cooperates with the sliding groove (72).

3. The anti-corrosion protection device for the external structure of offshore wind turbine towers according to claim 2, characterized in that, The top of the lead screw (73) is inserted into the top of the fixed column (71). The top of the fixed column (71) is rotatably connected to a rotating block (74). The rotating block (74) is fixedly connected to the top of the lead screw (73). Two fixed rods (91) are fixedly connected to the surface of the slider (92). The two ends of the sliding sleeve (9) are respectively fixedly connected to the tops of the two fixed rods (91).

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