Detachable real-time monitoring device for scouring around offshore wind power foundation pile

Abstract

The utility model discloses a detachable real-time monitoring device for scouring around an offshore wind power foundation pile, which relates to the technical field of offshore wind power, and comprises an overwater unit, an underwater unit and a watertight cable used for connecting the overwater unit and the underwater unit, the underwater unit is sleeved outside a steel pipe pile, the overwater unit is arranged at the top of an outer platform, and the underwater unit is connected with the watertight cable. The underwater unit comprises a plurality of first special-shaped steel plates, the multiple first special-shaped steel plates are arranged on the outer sides of the steel pipe piles in a sleeving mode, and first double-nut bolts are arranged at the joints of the multiple first special-shaped steel plates. The steel pipe pile, the first special-shaped steel plate, the first double-nut bolt, the flitch plate, the second special-shaped steel plate, the supporting steel pipe and the second double-nut bolt are arranged in a matched mode, so that the underwater unit has a detachable function, regular operation and maintenance, overhaul and replacement of the monitoring device are facilitated, meanwhile, segmented disassembly can be conducted according to the working condition of the underwater unit, and the underwater unit is convenient to use. And overall disassembly is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, in particular to a detachable real-time monitoring device for scouring around offshore wind power foundation piles. Background Art

[0002] In the existing offshore wind farms, pile foundations are widely used. However, the marine environment is diverse and under the action of waves and currents, local scouring will occur around the piles. Existing studies have shown that the maximum scouring depth around the piles can reach several times the pile diameter. Scouring around the piles may significantly reduce the bearing capacity of the pile foundation and endanger the safety of offshore wind turbines in service.

[0003] At present, side scan sonar, multi-beam sonar, synthetic aperture sonar and other means are usually used in offshore wind power projects to conduct regular scanning of the seabed topography around piles. However, the complex marine environment and climatic conditions will cause repeated changes in the scouring pits and siltation around piles. The results obtained from a single scan lack timeliness and cannot timely update the development of the scouring morphology around piles. The risk of scouring around piles lacks predictability and evaluability. At the same time, the existing scouring monitoring devices around piles are generally highly integrated with the pile foundation. Constraints such as on-site welding and interference with auxiliary components make the actual installation of scouring monitoring devices difficult, and the equipment cost and construction cost are high. If the scouring monitoring device is damaged due to severe sea conditions and other reasons, it will be difficult and expensive to replace or repair the scouring monitoring device. It is urgent to propose a detachable and easy-to-maintain offshore wind power foundation pile scouring monitoring device to ensure the service safety of offshore wind power foundations. Utility Model Content

[0004] In view of the problems that the existing pile periphery scour monitoring device has a high degree of integration with the pile foundation, is difficult to install, and is difficult and expensive to replace or repair, the utility model provides a detachable offshore wind power foundation pile periphery scour real-time monitoring device.

[0005] The utility model provides a detachable real-time monitoring device for scour around offshore wind power foundation piles, and the technical solution adopted is as follows:

[0006] A detachable real-time monitoring device for scouring around offshore wind power foundation piles, comprising an above-water unit, an underwater unit, and a watertight cable for connecting the above-water unit and the underwater unit, wherein the underwater unit is sleeved on the outside of the steel pipe pile, the above-water unit is installed on the top of the outer platform, the underwater unit comprises a plurality of first special-shaped steel plates, the plurality of first special-shaped steel plates are sleeved on the outside of the steel pipe pile, the connection points of the plurality of first special-shaped steel plates are all provided with first double nuts and bolts, one end of the first special-shaped steel plate away from the steel pipe pile is connected to a connecting pipe, and one end of the connecting pipe away from the first special-shaped steel plate is provided with a first double nut and bolt. A post plate is installed, and a second special-shaped steel plate is installed at one end of the post plate away from the first special-shaped steel plate, a second double nut bolt is provided at the connection between the post plate and the second special-shaped steel plate, a supporting steel pipe is installed between the post plate and the second special-shaped steel plate, an underwater transducer is installed at the bottom of the supporting steel pipe, and first "U"-shaped clamps are installed at both ends of the top of the underwater transducer. The number of the first "U"-shaped clamps can be set in multiple groups as needed, a surface sound velocity meter is clamped on the top of the first "U"-shaped clamp, and a plurality of small holes matching the watertight cable are opened on the surface of the supporting steel pipe.

[0007] By adopting the above technical solution, the first special-shaped steel plate and the steel pipe pile are fastened underwater by the first double nut and bolt, the connecting pipe and the first special-shaped steel plate can be pre-welded on land, then the supporting steel pipe is placed between the plate and the second special-shaped steel plate and fastened by the second double nut and bolt, finally, the underwater transducer is connected to the bottom of the supporting steel pipe by a flange, and the surface sound velocity meter is installed by the first "U"-shaped clamp, which is convenient for regular operation, maintenance and replacement of the monitoring device, thereby improving the practicability of the device.

[0008] Optionally, the above-water unit includes a positioning device, a data processing device and a power supply device, the input end of the data processing device is respectively connected to the output ends of the underwater transducer and the surface sound velocity meter through the watertight cable, the output end of the positioning device is connected to the input end of the data processing device through the watertight cable, and the output end of the power supply device is connected to the input end of the data processing device through the watertight cable.

[0009] By adopting the above technical scheme, the underwater transducer can emit sound waves to the seabed and receive reflected waves, and transmit the sound wave data to the surface unit. The surface sound velocity meter can measure the water sound velocity value at the location of the sound velocity meter, and the positioning device can provide accurate position information. The data processing device can convert the sound wave data transmitted by the underwater unit into seabed topography data, thereby providing real-time and stable seabed topography measurement data around the pile.

[0010] Optionally, a plurality of semicircular grooves are evenly arranged on the upper end of the right side of the steel pipe pile and the outer platform.

[0011] By adopting the above technical solution, the watertight cable can be limited.

[0012] Optionally, there are four groups of the first special-shaped steel plates, and the four groups of the first special-shaped steel plates are arranged in pairs to surround the outside of the steel pipe piles, and the four groups of the first special-shaped steel plates all have an "Ω"-shaped structure.

[0013] By adopting the above technical solution, it is convenient to sleeve the first special-shaped steel plate on the outside of the steel pipe pile.

[0014] Optionally, rubber gaskets are connected to the inner sides of the first special-shaped steel plate and the second special-shaped steel plate and the outer side of the pasting plate.

[0015] By adopting the above technical solution, the outer sides of the steel pipe piles and the supporting steel pipes can be protected by rubber gaskets, thereby avoiding friction damage to the outer sides of the steel pipe piles and the supporting steel pipes as much as possible.

[0016] Optionally, a first reinforcing rib is installed between the first double nuts and bolts, one side of the first reinforcing rib is welded to the straight section of the first special-shaped steel plate, and the other side of the first reinforcing rib is welded to the arc section of the first special-shaped steel plate, and the first reinforcing ribs are respectively arranged on both sides of the first special-shaped steel plate.

[0017] By adopting the above technical solution, the shear strength of the first special-shaped steel plate is increased.

[0018] Optionally, a second reinforcing rib is installed between the second double nuts and bolts, one side of the second reinforcing rib is welded to the straight segment of the second special-shaped steel plate, and the other side of the second reinforcing rib is welded to the arc segment of the second special-shaped steel plate, and the second reinforcing ribs are respectively arranged on both sides of the second special-shaped steel plate.

[0019] By adopting the above technical solution, the shear strength of the second special-shaped steel plate is increased.

[0020] Optionally, a plurality of second “U”-shaped clamps are provided on the surface of the supporting steel pipe.

[0021] Optionally, by adopting the above technical solution, a second "U"-shaped clamp is provided to install a sound velocity profiler on the surface of the supporting steel pipe, thereby obtaining the sound velocity at different depths, so as to accurately correct the sound wave data obtained by the underwater transducer.

[0022] In summary, the utility model has the following beneficial effects:

[0023] (1) Through the coordinated arrangement of the steel pipe pile, the first special-shaped steel plate, the first double nut and bolt, the plate, the second special-shaped steel plate, the supporting steel pipe and the second double nut and bolt, the underwater unit has a detachable function, which is convenient for regular operation, maintenance and replacement of the monitoring device. The underwater unit can be disassembled in sections according to the working condition of the underwater unit, and only the corresponding faulty part can be disassembled on site for replacement without the need for overall disassembly.

[0024] (2) Through the coordinated arrangement of the underwater transducer, the surface sound velocity meter, the sound velocity profiler, the first "U"-shaped clamp, the positioning device, the data processing device, the power supply device, and the second "U"-shaped clamp, the underwater sound velocity values ​​at different depths from the water surface to the bottom of the water in the water environment can be measured, so as to accurately correct the sound wave data obtained by the underwater transducer, and then provide real-time and stable seabed topography measurement data around the pile. The utility model is suitable for any offshore wind farm environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the present technical solution, a brief introduction is given below to the drawings in the technical description. Obviously, the drawings in the following description are only typical embodiments of the present utility model. For ordinary technicians in this field, other similar technical inspirations can be obtained based on these drawings without creative work, which should be included in the protection scope of this patent.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a side structural schematic diagram of the utility model.

[0028] In the figure: 1. steel pipe pile; 2. outer platform; 3. watertight cable; 4. first special-shaped steel plate; 5. rubber gasket; 6. first double nut and bolt; 7. first reinforcing rib; 8. connecting pipe; 9. plate; 10. second special-shaped steel plate; 11. second reinforcing rib; 12. supporting steel pipe; 13. underwater transducer; 14. surface sound velocity meter; 15. first "U" shaped clamp; 16. positioning equipment; 17. data processing equipment; 18. power supply equipment; 19. semicircular slot; 20. small hole; 21. second "U" shaped clamp; 22. second double nut and bolt. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2The utility model provides an embodiment: a detachable real-time monitoring device for scour around offshore wind power foundation piles, including an above-water unit, an underwater unit, and a watertight cable 3 for connecting the above-water unit and the underwater unit. The underwater unit is sleeved on the outside of the steel pipe pile 1, and the above-water unit is installed on the top of the outer platform 2. The underwater unit includes a plurality of first special-shaped steel plates 4, and the plurality of first special-shaped steel plates 4 are sleeved on the outside of the steel pipe pile 1. The connection points of the plurality of first special-shaped steel plates 4 are all provided with first double nuts and bolts 6. The number of the first special-shaped steel plates 4 is set in four groups, and the four groups of first special-shaped steel plates 4 are correspondingly embraced on the outside of the steel pipe pile 1 in pairs, and the four groups of first special-shaped steel plates 4 are all in an "Ω"-shaped structure. Thereby, it is convenient to sleeve the first special-shaped steel plate 4 on the outside of the steel pipe pile 1.

[0031] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 A first reinforcing rib 7 is installed between the first double nut bolts 6, one side of the first reinforcing rib 7 is welded to the straight section of the first special-shaped steel plate 4, and the other side of the first reinforcing rib 7 is welded to the arc section of the first special-shaped steel plate 4. The first reinforcing ribs 7 are respectively arranged on both sides of the first special-shaped steel plate 4, thereby increasing the shear strength of the first special-shaped steel plate 4.

[0032] Please refer to the attached figure in the instruction manual Figure 1 The end of the first special-shaped steel plate 4 on the right side away from the steel pipe pile 1 is connected to a connecting pipe 8, the end of the connecting pipe 8 away from the first special-shaped steel plate 4 is installed with a plate 9, the end of the plate 9 away from the first special-shaped steel plate 4 is installed with a second special-shaped steel plate 10, and the inner sides of the first special-shaped steel plate 4 and the second special-shaped steel plate 10 and the outer side of the plate 9 are all connected with rubber gaskets 5. Thus, the outer sides of the steel pipe pile 1 and the supporting steel pipe 12 can be protected by the rubber gasket 5, and friction damage to the outer sides of the steel pipe pile 1 and the supporting steel pipe 12 can be avoided as much as possible.

[0033] Please refer to the attached figure in the instruction manual Figure 1 A second double nut bolt 22 is provided at the connection between the plate 9 and the second special-shaped steel plate 10, and a second reinforcing rib 11 is installed between the second double nut bolts 22. One side of the second reinforcing rib 11 is welded to the straight section of the second special-shaped steel plate 10, and the other side of the second reinforcing rib 11 is welded to the arc section of the second special-shaped steel plate 10. The second reinforcing ribs 11 are respectively arranged on both sides of the second special-shaped steel plate 10, thereby increasing the shear strength of the second special-shaped steel plate 10.

[0034] Please refer to the attached figure in the instruction manual Figure 1A supporting steel pipe 12 is installed between the plate 9 and the second special-shaped steel plate 10. An underwater transducer 13 is installed at the bottom of the supporting steel pipe 12 through a flange. The first "U"-shaped clamps 15 are installed at both ends of the top of the underwater transducer 13. The number of first "U"-shaped clamps 15 can be set in multiple groups as needed. The top of the first "U"-shaped clamp 15 is clamped with a surface sound velocity meter 14. A plurality of semicircular card grooves 19 are evenly arranged on the upper end of the right side of the steel pipe pile 1 and the outer platform 2, so as to limit the watertight cable 3. A plurality of second "U"-shaped clamps 21 are arranged on the surface of the supporting steel pipe 12. As needed, a sound velocity profiler can be installed on the surface of the supporting steel pipe 12 through the second "U"-shaped clamps 21.

[0035] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The surface of the supporting steel pipe 12 is provided with a plurality of small holes 20 which match the watertight cable 3. The above-water unit includes a positioning device 16, a data processing device 17 and a power supply device 18. The input end of the data processing device 17 is respectively connected to the output end of the underwater transducer 13 and the surface sound velocity meter 14 through the watertight cable 3. The output end of the positioning device 16 is connected to the input end of the data processing device 17 through the watertight cable 3. The output end of the power supply device 18 is connected to the input end of the data processing device 17 through the watertight cable 3. The underwater transducer 13 can emit sound waves to the seabed and receive reflected waves, and transmit the sound wave data to the above-water unit. The surface sound velocity meter 14 can measure the underwater sound velocity value at the location of the sound velocity meter. The sound velocity profiler can measure the underwater sound velocity values ​​at different depths from the water surface to the bottom of the water in the water environment. The positioning device 16 can provide accurate location information. The data processing device 17 can convert the sound wave data transmitted by the underwater unit into seabed topography data, thereby providing real-time and stable seabed topography measurement data around the pile.

[0036] Working principle: During installation and construction, first, the first special-shaped steel plate 4 and the steel pipe pile 1 are fastened underwater by the first double nut bolt 6, and the connecting pipe 8 and the first special-shaped steel plate 4 can be pre-welded on land. Then, the supporting steel pipe 12 is placed between the plate 9 and the second special-shaped steel plate 10, and the plate 9 and the second special-shaped steel plate 10 are fastened by the second double nut bolt 22. Finally, the underwater transducer 13 is connected to the bottom of the supporting steel pipe 12 through a flange, and the surface sound velocity meter 14 is installed through the first "U"-shaped clamp 15. The sound velocity profiler can be installed on the surface of the supporting steel pipe 12 as needed through the second "U"-shaped clamp 21. The above bolt and clamp fastening connection can make the device easy to operate, inspect and replace regularly. The underwater transducer 13 can emit sound waves to the seabed and receive reflected waves, and transmit the sound wave data to the surface unit. The surface sound velocity meter 14 can measure the underwater sound velocity value at the location of the sound velocity meter. The sound velocity profiler can measure the underwater sound velocity values ​​at different depths from the water surface to the bottom of the water in an aquatic environment. The positioning device 16 can provide accurate position information. The data processing device 17 can convert the sound wave data transmitted by the underwater transducer 13 into seabed topography data, so as to provide real-time and stable seabed topography measurement data around the pile. The disassembly construction is the reverse operation of the installation construction. At the same time, it can be disassembled in sections according to the working conditions of the underwater unit. If only the supporting steel pipe 12 and the surface sound velocity meter 14 fail, only the corresponding faulty part can be dismantled on site for replacement without the need for overall dismantling, thereby improving the practicability of the device.

[0037] The above are only typical embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, arrangement, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable real-time monitoring device for scour around offshore wind power foundation piles, comprising an above-water unit, an underwater unit and a watertight cable (3) for connecting the above-water unit and the underwater unit, characterized in that: The underwater unit is sleeved on the outside of the steel pipe pile (1), and the above-water unit is installed on the top of the outer platform (2). The underwater unit comprises a plurality of first special-shaped steel plates (4), and the plurality of first special-shaped steel plates (4) are sleeved on the outside of the steel pipe pile (1). The connection points of the plurality of first special-shaped steel plates (4) are all provided with first double nuts and bolts (6). The end of the first special-shaped steel plate (4) away from the steel pipe pile (1) is connected to a connecting pipe (8), and the end of the connecting pipe (8) away from the first special-shaped steel plate (4) is installed with a pasting plate (9), and the end of the pasting plate (9) away from the first special-shaped steel plate (4) is installed with a second special-shaped steel plate (10). A second double nut bolt (22) is provided at the connection between the plate (9) and the second special-shaped steel plate (10); a supporting steel pipe (12) is installed between the plate (9) and the second special-shaped steel plate (10); an underwater transducer (13) is installed at the bottom of the supporting steel pipe (12); first "U"-shaped clamps (15) are installed at both ends of the top of the underwater transducer (13); the number of the first "U"-shaped clamps (15) can be set in multiple groups as required; a surface sound velocity meter (14) is clamped at the top of the first "U"-shaped clamp (15); and a plurality of small holes (20) matching the watertight cable (3) are opened on the surface of the supporting steel pipe (12).

2. A detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: The above-water unit comprises a positioning device (16), a data processing device (17) and a power supply device (18); the input end of the data processing device (17) is respectively connected to the output ends of the underwater transducer (13) and the surface sound velocity meter (14) via the watertight cable (3); the output end of the positioning device (16) is connected to the input end of the data processing device (17) via the watertight cable (3); and the output end of the power supply device (18) is connected to the input end of the data processing device (17) via the watertight cable (3).

3. A detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: A plurality of semicircular slots (19) are evenly arranged on the upper part of the steel pipe pile (1) and the outer platform (2), and the semicircular slots (19) match the watertight cables (3).

4. A detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: The first special-shaped steel plates (4) are all in an "Ω"-shaped structure. The number of the first special-shaped steel plates (4) can be arranged in multiple groups according to needs. The first special-shaped steel plates (4) in each group are arranged in pairs to surround the outer side of the steel pipe pile (1).

5. The detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: The inner sides of the first special-shaped steel plate (4) and the second special-shaped steel plate (10) and the outer side of the pasting plate (9) are all connected with rubber gaskets (5).

6. A detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: A first reinforcing rib (7) is installed between the first double-nut bolts (6); one side of the first reinforcing rib (7) is welded to the straight section of the first special-shaped steel plate (4); the other side of the first reinforcing rib (7) is welded to the arc section of the first special-shaped steel plate (4); and the first reinforcing rib (7) is respectively arranged on both sides of the first special-shaped steel plate (4).

7. A detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: A second reinforcing rib (11) is installed between the second double nut bolts (22), one side of the second reinforcing rib (11) is welded to the straight section of the second special-shaped steel plate (10), and the other side of the second reinforcing rib (11) is welded to the arc section of the second special-shaped steel plate (10), and the second reinforcing rib (11) is respectively arranged on both sides of the second special-shaped steel plate (10).

8. The detachable real-time monitoring device for scour around offshore wind power foundation piles according to claim 1, characterized in that: A plurality of second U-shaped clamps (21) are provided on the surface of the supporting steel pipe (12), and the second U-shaped clamps (21) can be used to install a sound velocity profiler on the surface of the supporting steel pipe (12) as required.

Images