Monitoring device for offshore wind power foundation scouring
By setting up an operating platform and hoisting components around the outer perimeter of the wind turbine pile tower, real-time scour monitoring of the wind turbine pile foundation was achieved, solving the problems of high cost and weather restrictions in existing technologies for offshore testing, and improving monitoring efficiency and timeliness.
Patent Information
- Application Number
- CN202520425638.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing technologies, shipborne multibeam sonar systems require frequent sea-based inspections, which are costly and subject to weather-related time constraints, making it impossible to detect scouring of offshore wind turbine foundations in a timely manner.
A monitoring device was designed for the outer periphery of a wind turbine tower, including an operating platform, a protective cover, a hoisting assembly, a monitoring platform, and a main control device. Through the coordinated action of the hoisting assembly and the main control device, the monitoring platform can be raised, lowered, and its position adjusted to perform real-time scour monitoring.
It enables real-time scour monitoring of wind turbine pile foundations, reduces testing costs, avoids weather restrictions, and improves the timeliness and efficiency of monitoring.
Smart Images
Figure CN223838146U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of offshore wind power pile foundation scour monitoring technology, and particularly relates to a monitoring device for offshore wind power foundation scour. Background Technology
[0002] Currently, the offshore wind power industry has entered a stage of large-scale and commercial development. After wind turbine piles are built and put into use, in the marine environment where wind, waves, and tides act together, the area around the pile foundation will experience localized erosion due to the bottom water flow.
[0003] Early methods for assessing the lifespan of wind turbine foundations relied primarily on divers using simple underwater testing equipment. However, this method was inefficient and heavily dependent on the divers' experience. In recent years, many researchers both domestically and internationally have focused on underwater pile scour monitoring, proposing numerous monitoring methods and equipment to replace manual diving. Among these, shipborne multibeam sonar systems are currently the primary method for detailed detection of scour in offshore wind turbine foundations. However, this method requires frequent sea trials, resulting in high costs, weather-dependent operation times, and the inability to detect scour promptly. Utility Model Content
[0004] To address the problems of frequent sea trials, high sea trial costs, and weather-dependent operation time limitations of shipborne multibeam sonar systems described in the background art, this utility model proposes the following technical solution:
[0005] A monitoring device for scour of offshore wind turbine foundations, mounted on the outer periphery of the wind turbine tower, includes: an operating platform, a protective cover, pulleys, a hoisting assembly, a monitoring platform, and a main control device. The operating platform is fixedly mounted on the outer periphery of the tower, and its surface is provided with an annular slide rail. One side of the protective cover is fixedly connected to the fixed end of the pulley, and the other side of the protective cover is movably mounted above the annular slide rail. The fixed end of the hoisting assembly is fixed inside the protective cover, and the movable end of the hoisting assembly is rotatably connected to the monitoring platform. The main control device is fixedly mounted inside the protective cover and is electrically connected to both the monitoring platform and the hoisting assembly to drive the monitoring platform to monitor the scour of the entire wind turbine foundation.
[0006] The hoisting assembly includes: a hinged base, a rotating motor, a first hydraulic assembly, a crossbar, an electric hoist, and a drive motor. The fixed portion of the hinged base is fixedly disposed within the protective cover, and the rotating shaft of the hinged base is fixedly connected to the fixed end of the first hydraulic assembly. The rotating motor receives commands from the main control device to drive the rotating shaft of the hinged base to rotate. The two ends of the crossbar are respectively connected to the movable end of the first hydraulic assembly and the fixed end of the electric hoist, and the movable end of the electric hoist is fixedly connected to the monitoring platform. The drive motor is fixedly disposed on the surface of the crossbar and is electrically connected to both the electric hoist and the main control device to drive the monitoring platform to move up and down along the tower.
[0007] Furthermore, the protective cover includes: a cover plate, a base, and a second hydraulic assembly; the base has a recessed cavity for accommodating the lifting assembly; one side of the cover plate is hinged to the base, and the other side of the cover plate is folded and extended; one end of the base is movably disposed within the annular slide rail via the pulley, and the other end of the base is rotatably connected to the fixed end of the second hydraulic assembly; the fixed end of the second hydraulic assembly is hinged to the surface of the base, and the movable end of the second hydraulic assembly is hinged to the cover plate.
[0008] Furthermore, the monitoring platform includes: a counterweight, a hinged ball, and a multibeam unit; one side of the counterweight is suspended from the movable end of the electric hoist, and the other side of the counterweight is fixedly connected to the hinged ball; the hinged ball is hingedly connected to the multibeam unit, and the multibeam unit is electrically connected to the main control device; when the hoisting assembly is started, the main control device drives the multibeam unit to rotate relative to the counterweight to perform the scour monitoring.
[0009] Furthermore, the plane in which the rotation direction of the multi-beam device lies is parallel to the surface of the operating platform.
[0010] Furthermore, the protective cover also includes a first pillar and a second pillar; the first pillar is vertically fixed on the side of the cover plate near the base, and the second pillar is vertically fixed on the side of the base near the cover plate; the two ends of the second hydraulic component are respectively hinged to the first pillar and the second pillar, and when the second hydraulic component is activated, the cover plate moves relative to the base to complete the opening and closing action.
[0011] Furthermore, the length of the first support is less than that of the second support.
[0012] Beneficial effects: This utility model solves the problem of real-time scour monitoring of wind turbine piles by setting up a corresponding operating platform on the wind turbine pile, using the protective cover and hoisting components on the operating platform to change the relative position between the monitoring platform and the tower, and monitoring the scour of the outer periphery of the tower in the set area under the control of the main control device. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a monitoring device for monitoring the scour of offshore wind power foundations according to an embodiment of the present invention;
[0014] Figure 2 This is a schematic diagram of the structure of a protective cover according to an embodiment of the present utility model;
[0015] Figure 3 This is a front view schematic diagram of a monitoring device for monitoring the scour of offshore wind power foundations according to an embodiment of the present invention;
[0016] Figure 4 This is a three-dimensional structural diagram of a monitoring platform according to an embodiment of the present utility model. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
[0018] It should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0019] Figure 1 This is a schematic diagram of a monitoring device for monitoring the scour of offshore wind power foundations according to an embodiment of the present invention.
[0020] Reference Figure 1A monitoring device for scour of offshore wind turbine foundations according to an embodiment of the present invention includes: an operating platform, a protective cover, a moving device, a hoisting assembly, a monitoring platform, and a main control device. The wind turbine foundation is fixed on the sea surface, with its bottom end below sea level and its top equipped with corresponding wind power generation equipment. The outer periphery of the wind turbine foundation is a tower 1, and the operating platform 2 is fixedly mounted on the outer periphery of the tower 1, coaxially arranged with the tower 1. A circular track is provided on the operating platform 2, and the protective cover 3 is fixedly connected to the fixed end of the moving device, thus being movably mounted on the circular track. The other side of the protective cover 3 can be opened and closed to cover the hoisting assembly 5 above the circular track. The fixed end of the hoisting assembly 5 and the main control device 7 are both fixed inside the protective cover 3, and the movable end of the hoisting assembly 5 is rotatably connected to the monitoring platform 6. The main control device 7 is electrically connected to both the monitoring platform 6 and the hoisting assembly 5, thereby driving the monitoring platform 6 to monitor the scour of the entire wind turbine foundation.
[0021] Specifically, the hoisting assembly 5 includes: a hinge base 51, a rotary motor 52, a first hydraulic assembly 53, a crossbar 54, an electric hoist 55, and a drive motor 56. The fixed part of the hinge base 51 is fixedly housed within the protective cover 3, and the rotating shaft of the hinge base 51 is fixedly connected to the fixed end of the first hydraulic assembly 53. The rotating end of the rotary motor 52 is fixedly connected to the rotating shaft of the hinge base 51, and the main control device 7 controls the rotary motor 52 via electrical signals, thereby driving the first hydraulic assembly 53 for adjustment. The two ends of the crossbar 54 are respectively connected to the movable end of the first hydraulic assembly 53 and the fixed end of the electric hoist 55, and the movable end of the electric hoist 55 is fixedly connected to the monitoring platform 6. The drive motor 56 is fixedly mounted on the surface of the crossbar 54 between the electric hoist 55 and the first hydraulic assembly 53. When the main control device 7 controls the drive motor 56 to start, the drive motor 56 drives the electric hoist 55, thereby causing the monitoring platform 6 to move up and down along the axis of the tower 1.
[0022] Figure 2 This is a schematic diagram of the structure of a protective cover according to an embodiment of the present utility model.
[0023] Furthermore, refer to Figure 1 and Figure 2The protective cover 3 includes a cover plate 31, a base 32, and a second hydraulic assembly 33. One side of the cover plate 31 is hinged to the base 32, and the other side of the cover plate 31 extends vertically. The base 32 has a box-like structure with an internal recess forming a cavity for accommodating the lifting assembly 5. The bottom side near the operating platform 2 is fixedly connected to the fixed end of the pulley 4, and the base 32 is limited on the annular slide rail 21 by the pulley 4. The fixed end of the second hydraulic assembly 33 is hinged to the inner wall of the base 32, and the movable end of the second hydraulic assembly 33 is hinged to the side of the cover plate 31 near the base 32. The second hydraulic assembly 33 is activated by an electrical signal from the main control device 7 to complete the flipping action of the cover plate 31, thereby realizing the opening and closing action of the protective cover 3.
[0024] Figure 3 This is a front view structural schematic diagram of a monitoring device for monitoring the scour of offshore wind power foundations according to an embodiment of the present invention. Figure 4 This is a three-dimensional structural diagram of a monitoring platform according to an embodiment of the present utility model.
[0025] Furthermore, refer to Figure 3 and Figure 4 In this embodiment, the protective cover 3 further includes a first support column 34 and a second support column 35. The first support column 34 is vertically fixed to the surface of the cover plate 31, and its end is hinged to the movable end of the second hydraulic component 33. The second support column 35 is vertically fixed to the surface of the base 32, and its end is hinged to the fixed end of the second hydraulic component 33. Preferably, to further improve the rotation effect, the length of the first support column 34 is less than the length of the second support column 35, thereby ensuring that the second hydraulic component 33 is inclined between the cover plate 31 and the base 32.
[0026] Specifically, the monitoring platform 6 includes a counterweight 61, a hinged ball 62, and a multibeam unit 63. The counterweight 61 is generally square and is mainly used to increase the weight of the object suspended by the electric hoist 55, thus avoiding interference from wind at sea. One side of the counterweight 61 is fixed to the movable end of the electric hoist 55 via suspension, and the other side is fixedly connected to the hinged ball 62. The multibeam unit 63 is hinged to the hinged ball 62 and has a corresponding rotating mechanism. Under the action of the electrical signal from the main control device 7, the multibeam unit 63 can rotate relative to the counterweight 61, thereby monitoring the seawater scouring of the outer circumference of the tower 1. The plane in which the multibeam unit 63 rotates is always parallel to the surface of the operating platform 2.
[0027] During scour monitoring, the main control device 7 drives the second hydraulic component 33 to extend and retract, thereby causing the cover plate 31 to flip and expose the hoisting component 5 inside the base 32. After the pulley 4 moves to the point to be monitored, the main control device 7 drives the rotating motor 52 to adjust the distance between the monitoring platform 6 and the tower 1. The main control device 7 controls the drive motor 56 to start, and the electric hoist 55 raises or lowers the monitoring platform 6, thereby allowing the monitoring platform 6 to enter the area below sea level to monitor the scour of the tower 1. In application, the main control device 7 can also set the pulley 4 to move continuously on the slide rail, thereby allowing the monitoring platform 6 to monitor the scour of the outer circumference of the tower 1 in the designated area below or above sea level.
[0028] In summary, this utility model solves the problem of real-time scour monitoring of wind turbine piles by setting up a corresponding operating platform on the wind turbine pile, using the protective cover and hoisting components on the operating platform to change the relative position between the monitoring platform and the tower, and monitoring the scour of the outer periphery of the tower in a set area under the control of the main control device.
[0029] The above description describes specific embodiments of the utility model. Other embodiments are within the scope of the appended claims.
[0030] The terms “exemplary,” “example,” etc., used throughout this specification mean “serving as an example, instance, or illustration” and do not imply “preferred” or “advantageous” than other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques can be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.
[0031] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all fall within the protection scope of the embodiments of the present utility model.
[0032] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.
Claims
1. A monitoring device for scour of offshore wind turbine foundations, installed on the outer periphery of the tower (1) of the wind turbine pile, characterized in that, include: The system comprises an operating platform (2), a protective cover (3), a pulley (4), a hoisting assembly (5), a monitoring platform (6), and a main control device (7). The operating platform (2) is fixedly installed on the outer periphery of the tower (1), and the surface of the operating platform (2) is provided with an annular slide rail (21). One side of the protective cover (3) is fixedly connected to the fixed end of the pulley (4), and the other side of the protective cover (3) is openably installed above the annular slide rail (21). The fixed end of the hoisting assembly (5) is fixedly installed inside the protective cover (3), and the movable end of the hoisting assembly (5) is rotatably connected to the monitoring platform (6). The main control device (7) is fixedly installed inside the protective cover (3), and the main control device (7) is electrically connected to the monitoring platform (6) and the hoisting assembly (5) respectively, so as to drive the monitoring platform (6) to perform scouring monitoring on the entire wind turbine pile.
2. The monitoring device for offshore wind turbine foundation scour as described in claim 1, characterized in that, The hoisting assembly (5) includes: a hinge base (51), a rotary motor (52), a first hydraulic assembly (53), a crossbar (54), an electric hoist (55), and a drive motor (56); the fixed part of the hinge base (51) is fixedly disposed inside the protective cover (3), and the rotating shaft of the hinge base (51) is fixedly connected to the fixed end of the first hydraulic assembly (53); the rotary motor (52) is used to receive instructions from the main control device (7) to drive the rotating shaft of the hinge base (51). The crossbar (54) rotates; the two ends of the crossbar (54) are respectively connected to the movable end of the first hydraulic component (53) and the fixed end of the electric hoist (55), and the movable end of the electric hoist (55) is fixedly connected to the monitoring platform (6); the drive motor (56) is fixedly mounted on the surface of the crossbar (54), and the drive motor (56) is electrically connected to the electric hoist (55) and the main control device (7) respectively, so as to drive the monitoring platform (6) to move up and down along the tower (1).
3. A monitoring device for offshore wind turbine foundation scour as described in claim 2, characterized in that, The protective cover (3) includes: a cover plate (31), a base (32), and a second hydraulic component (33); the base (32) has a recessed cavity for accommodating the hoisting component (5); one side of the cover plate (31) is hinged to the base (32), and the other side of the cover plate (31) is folded and extended; one end of the base (32) is movably disposed in the annular slide rail (21) via the pulley (4), and the other end of the base (32) is rotatably connected to the fixed end of the second hydraulic component (33); the fixed end of the second hydraulic component (33) is hinged to the surface of the base (32), and the movable end of the second hydraulic component (33) is hinged to the cover plate (31).
4. A monitoring device for offshore wind turbine foundation scour as described in claim 3, characterized in that, The monitoring platform (6) includes: a counterweight (61), a hinged ball (62), and a multibeam unit (63); one side of the counterweight is suspended from the movable end of the electric hoist (55), and the other side of the counterweight is fixedly connected to the hinged ball (62); the hinged ball (62) is hinged to the multibeam unit (63), and the multibeam unit (63) is electrically connected to the main control device (7); when the hoisting assembly (5) is started, the main control device (7) drives the multibeam unit (63) to rotate relative to the counterweight to perform the scouring monitoring.
5. A monitoring device for offshore wind turbine foundation scour as described in claim 4, characterized in that, The plane in which the rotation direction of the multi-beam device (63) lies is parallel to the surface of the operating platform (2).
6. A monitoring device for offshore wind turbine foundation scour as described in claim 4, characterized in that, The protective cover (3) also includes a first support column (34) and a second support column (35); the first support column (34) is vertically fixed on the side of the cover plate (31) near the base (32), and the second support column (35) is vertically fixed on the side of the base (32) near the cover plate (31); the two ends of the second hydraulic component (33) are respectively hinged to the first support column (34) and the second support column (35). When the second hydraulic component (33) is activated, the cover plate (31) moves relative to the base (32) to complete the opening and closing action.
7. A monitoring device for offshore wind turbine foundation scour as described in claim 6, characterized in that, The length of the first support (34) is less than that of the second support (35).