Pile leg torsion deformation state monitoring device in pile standing process of offshore wind power installation ship
By using torsional angle phase difference sensors at the top and bottom of the pile legs on offshore wind turbine installation vessels, combined with a low-voltage signal analysis processor and data display, the problems of accuracy and real-time performance in monitoring the torsional state of the pile legs have been solved, enabling safety early warning and improved operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-26
- Publication Date
- 2026-04-03
AI Technical Summary
The existing monitoring devices on the legs of offshore wind turbine installation vessels cannot comprehensively and accurately monitor the torsional state of the legs, leading to safety hazards and economic losses, and cannot meet the requirements for high-precision, real-time monitoring.
Using torsional angle phase difference sensors at the top and bottom of the pile leg, combined with a weak current signal analysis processor and a data display, the torsional deformation state of the pile leg is monitored in real time through the phase angle and waveform pulse signals generated by electromagnetic induction.
It enables real-time monitoring of pile leg torsional deformation, provides safety warnings, improves operational efficiency, reduces maintenance costs, and ensures the safe and efficient operation of offshore wind power installation vessels.
Smart Images
Figure CN224080920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine engineering vessel electrical systems, and in particular to a device for monitoring the torsional deformation of pile legs during the pile installation process of offshore wind power installation vessels. Background Technology
[0002] With the continued growth in global demand for clean energy, offshore wind power, as a highly promising renewable energy source, has experienced rapid development in recent years. As a key piece of equipment for installing offshore wind turbines, the stability of the offshore wind turbine installation vessel during the piling process plays a decisive role in the safety and efficiency of the entire installation operation. During piling, the pile legs not only have to bear the weight of themselves and the hull, but also resist the external forces such as wind, waves, and currents brought about by complex sea conditions, making them highly susceptible to torsional deformation.
[0003] Traditional methods for monitoring the legs of offshore wind turbine installation vessels are relatively limited. Simple mechanical measuring equipment has limited functionality and insufficient measurement accuracy, making it impossible to comprehensively monitor the torsional state of different positions of the legs. This fails to meet the high-precision, real-time monitoring requirements of offshore wind turbine installation operations. Furthermore, if torsional deformation of the legs is not monitored and addressed in a timely manner, it may lead to damage to the leg structure, tilting of the vessel, or even capsizing, seriously threatening the lives of offshore workers and causing huge economic losses and environmental damage. Therefore, developing a device that can accurately and in real-time monitor the torsional deformation of the legs is of great significance for ensuring the safe and efficient operation of offshore wind turbine installation vessels.
[0004] If torsional deformation of the pile legs is not monitored and addressed in a timely manner, it will lead to a series of serious consequences. Even minor torsional deformation can cause fatigue damage to the pile leg structure, shortening the equipment's service life; in severe cases, it can cause the vessel to tilt or even capsize, directly threatening the lives of offshore workers. Furthermore, the cost of repairing damaged equipment is high, and it can lead to project delays, significantly hindering the sustainable development of the entire offshore wind power industry. Therefore, a monitoring device for the torsional deformation of the pile legs during the installation of offshore wind turbines is proposed to address these issues. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a monitoring device for the torsional deformation state of pile legs during the installation of offshore wind turbine piles, aiming to improve the problem that some existing devices cannot observe the torsional deformation state of pile legs.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A monitoring device for monitoring the torsional deformation of the pile legs during the installation of offshore wind turbine piles includes an outer vertical truss of the pile legs. A torsional angle phase difference sensor of the pile leg tip is fixedly connected to the top of the outer vertical truss of the pile legs. A central vertical truss of the pile legs is fixedly connected inside the outer vertical truss of the pile legs. The torsional angle phase difference sensor of the pile leg tip is fixedly connected to the top of the central vertical truss of the pile legs.
[0008] As a further description of the above technical solution:
[0009] A pile shoe is fixedly connected to the bottom of the outer vertical truss of the pile leg, and a pile leg bottom torsion angle phase difference sensor is fixedly connected inside the pile shoe.
[0010] As a further description of the above technical solution:
[0011] The bottom of the central vertical truss of the pile leg is fixedly connected to the outside of the torsional angle phase difference sensor at the bottom of the pile leg, and the bottom of the outer vertical truss of the pile leg is fixedly connected to the outside of the torsional angle phase difference sensor at the bottom of the pile leg.
[0012] As a further description of the above technical solution:
[0013] The pile leg bottom torsion angle phase difference sensor includes a pile leg bottom torsion angle phase difference sensor coil, and a pile leg bottom torsion angle phase difference sensor permanent magnet probe is fixedly connected to the outside of the pile leg bottom torsion angle phase difference sensor coil.
[0014] As a further description of the above technical solution:
[0015] The torsional angle phase difference sensor at the top of the pile leg includes a torsional angle phase difference sensor coil at the top of the pile leg. A permanent magnet probe for the torsional angle phase difference sensor at the top of the pile leg is fixedly connected inside the torsional angle phase difference sensor coil at the top of the pile leg. A second central vertical truss of the pile leg is fixedly connected inside the outer vertical truss of the pile leg. A phase gear for the torsional angle phase difference sensor at the bottom of the pile leg is fixedly connected outside the second central vertical truss of the pile leg. A phase gear for the torsional angle phase difference sensor at the top of the pile leg is fixedly connected outside the second central vertical truss of the pile leg.
[0016] As a further description of the above technical solution:
[0017] The pile shoe is fixedly connected to a permanent magnet probe of a torsion angle phase difference sensor at the bottom of the pile leg. The permanent magnet probe of the torsion angle phase difference sensor at the bottom of the pile leg is fixedly connected to the inside of the coil of the torsion angle phase difference sensor at the bottom of the pile leg. The coil of the torsion angle phase difference sensor at the bottom of the pile leg is fixedly connected to the outside of the coil of the torsion angle phase difference sensor at the top of the pile leg.
[0018] As a further description of the above technical solution:
[0019] The coil of the torsion angle phase difference sensor at the bottom of the pile leg is externally fixedly connected to a weak current signal analysis processor, and the coil of the torsion angle phase difference sensor at the top of the pile leg is externally fixedly connected to the inside of the weak current signal analysis processor.
[0020] As a further description of the above technical solution:
[0021] The weak current signal analysis processor is externally fixedly connected to a data display. The externally fixedly connected phase gear of the torsion angle phase difference sensor at the bottom of the pile leg is inside the pile shoe. The externally fixedly connected phase gear of the torsion angle phase difference sensor at the bottom of the pile leg is set to the outline of the torsion angle phase difference sensor phase gear. The externally fixedly connected phase gear of the torsion angle phase difference sensor at the top of the pile leg is set to the outline of the torsion angle phase difference sensor phase gear.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this invention, the torsional angle phase difference sensor coils and permanent magnet probes at the top and bottom of the pile leg generate different phase angles and waveform pulse signals through electromagnetic induction. After these signals are input into the weak current signal analysis processor, they are shaped, amplified, and calculated. The torsional angle and torque values fed back by the top and bottom sensors are then output to the data display, enabling intuitive detection of the pile leg's torsional deformation and measurement of the torsional state at different positions of the pile leg.
[0024] 2. This utility model provides real-time data support for operations, provides early warning of abnormal torsion, avoids safety accidents caused by excessive deformation, facilitates timely adjustment of operating parameters by operators, and improves installation efficiency; long-term data accumulation can assist in equipment maintenance and performance optimization, reduce operation and maintenance costs, and effectively ensure the safe and efficient operation of offshore wind power installation vessel pile driving. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the monitoring device for monitoring the torsional deformation of the pile legs during the installation of offshore wind power vessels, as proposed in this utility model.
[0026] Figure 2 Left view of an offshore wind turbine installation vessel
[0027] Figure 3 Top view of an offshore wind turbine installation vessel
[0028] Figure 4 Left view of any of the legs of an offshore wind turbine installation vessel
[0029] Figure 5 This is a schematic diagram of the torsion angle phase difference sensor of this utility model.
[0030] Figure 6 This is a top view schematic diagram of the torsion angle phase difference sensor of this utility model.
[0031] Legend:
[0032] 1. Pile leg top torsional angle phase difference sensor; 2. Pile leg center vertical truss one; 3. Pile leg bottom torsional angle phase difference sensor; 4. Pile shoe; 5. Pile leg outer vertical truss; 6. Weak current signal analysis processor; 7. Data display; 8. Pile leg top torsional angle phase difference sensor coil; 9. Pile leg top torsional angle phase difference sensor permanent magnet probe; 10. Pile leg center vertical truss two; 11. Pile leg top torsional angle phase difference sensor phase gear; 12. Pile leg bottom torsional angle phase difference sensor phase gear; 13. Pile leg bottom torsional angle phase difference sensor coil; 14. Pile leg bottom torsional angle phase difference sensor permanent magnet probe; 15. Outline of torsional angle phase difference sensor phase gear. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1 to 4This utility model provides an embodiment of a monitoring device for the torsional deformation state of pile legs during the installation of offshore wind turbine piles. The device includes an outer vertical truss 5 for the pile legs, which serves as the foundation support structure for the entire monitoring device. A torsional angle phase difference sensor 1 for the top of the pile legs is fixedly connected to the top of the outer vertical truss 5. A central vertical truss 10 for the pile legs is fixedly connected inside the outer vertical truss 5. The central vertical truss 10 and the central vertical truss 20 for the pile legs are located inside the outer vertical truss 5, enhancing the overall strength and rigidity of the pile legs. The torsional angle phase difference sensor 1 for the top of the pile legs is also included. The differential sensor 1 is externally fixedly connected to the top of the central vertical truss 2 of the pile leg. The bottom of the outer vertical truss 5 of the pile leg is fixedly connected to the pile shoe 4. The pile shoe 4 is installed at the bottom of the outer vertical truss 5 of the pile leg to increase the contact area between the pile leg and the seabed and improve the stability of the pile leg on the seabed. The pile shoe 4 is internally fixedly connected to the bottom torsion angle phase difference sensor 3 of the pile leg. The bottom of the central vertical truss 2 of the pile leg is fixedly connected to the outside of the bottom torsion angle phase difference sensor 3 of the pile leg. The bottom of the outer vertical truss 5 of the pile leg is fixedly connected to the outside of the bottom torsion angle phase difference sensor 3 of the pile leg.
[0035] Reference Figures 1 to 6 The pile leg bottom torsion angle phase difference sensor 3 includes a pile leg bottom torsion angle phase difference sensor coil 13. When the bottom of the pile leg twists, it drives the pile leg bottom torsion angle phase difference sensor permanent magnet probe 14 to rotate, causing a change in the magnetic flux passing through the pile leg bottom torsion angle phase difference sensor coil 13, thereby generating an induced electromotive force, converting the torsional mechanical signal at the bottom of the pile leg into an electrical signal. The pile leg bottom torsion angle phase difference sensor coil 13 is externally fixedly connected to the pile leg bottom torsion angle phase difference sensor permanent magnet probe 14. The pile leg top torsion angle phase difference sensor 1 includes a pile leg top torsion angle phase difference sensor coil 8. When the pile leg twists, it drives the pile leg top torsion angle phase difference sensor coil 8 connected to it. When the permanent magnet probe 9 of the pile leg top torsion angle phase difference sensor rotates, the magnetic flux passing through the coil 8 of the pile leg top torsion angle phase difference sensor changes. The permanent magnet probe 9 of the pile leg top torsion angle phase difference sensor is fixedly connected inside the coil 8 of the pile leg top torsion angle phase difference sensor. The permanent magnet probe 9 of the pile leg top torsion angle phase difference sensor is connected to the rotating part at the top of the pile leg. When the pile leg torsions, it will make circular motion inside the coil 8 of the pile leg top torsion angle phase difference sensor. The magnetic field generated by the permanent magnet probe 9 of the pile leg top torsion angle phase difference sensor interacts with the coil 8 of the pile leg top torsion angle phase difference sensor, which is the key factor in generating the electromagnetic induction phenomenon.
[0036] The inner part of the outer vertical truss 5 of the pile leg is fixedly connected to the second central vertical truss 10 of the pile leg. The first central vertical truss 2 and the second central vertical truss 10 of the pile leg are located inside the outer vertical truss 5 of the pile leg, which enhances the overall strength and rigidity of the pile leg. The outer part of the second central vertical truss 10 of the pile leg is fixedly connected to the phase gear 12 of the bottom torsion angle phase difference sensor of the pile leg. The phase gear 12 of the bottom torsion angle phase difference sensor of the pile leg is fixed inside the pile shoe 4 and outside the second central vertical truss 10 of the pile leg. It is the same as the phase gear at the top of the pile leg and is the key component that transmits the torsional motion of the bottom of the pile leg to the sensor. The outer part of the second central vertical truss 10 of the pile leg is fixedly connected to the phase gear 11 of the top torsion angle phase difference sensor of the pile leg. When the pile leg twists, it drives the phase gear 11 of the top torsion angle phase difference sensor of the pile leg to rotate. The tooth design of the sensor phase gear 11 enables it to cooperate with other components inside the sensor to convert information such as rotation angle and speed into the parameters required for electrical signals. The pile shoe 4 is fixedly connected to the permanent magnet probe 14 of the pile leg bottom torsion angle phase difference sensor. The permanent magnet probe 14 of the pile leg bottom torsion angle phase difference sensor is installed inside the pile shoe 4 and connected to the rotating component at the bottom of the pile leg. When the bottom of the pile leg is twisted, it rotates inside the coil 13 of the pile leg bottom torsion angle phase difference sensor, and generates an electrical signal by changing the magnetic flux in the coil. The outside of the permanent magnet probe 14 of the pile leg bottom torsion angle phase difference sensor is fixedly connected to the inside of the coil 13 of the pile leg bottom torsion angle phase difference sensor. The outside of the coil 13 of the pile leg bottom torsion angle phase difference sensor is fixedly connected to the outside of the coil 8 of the pile leg top torsion angle phase difference sensor.
[0037] A weak current signal analysis processor 6 is externally fixedly connected to the torsion angle phase difference sensor coil 13 at the bottom of the pile leg. This processor receives electrical signals from the torsion angle phase difference sensor coils (top and bottom torsion angle phase difference sensor coil 8 and bottom torsion angle phase difference sensor coil 13) of the pile leg, extracts effective information related to the torsion state of the pile leg, analyzes and calculates the processed signals to obtain parameters such as the torsion angle, torsion speed, and degree of torsion deformation of the pile leg, and transmits the analysis results to the data display 7 for display. The torsion angle phase difference sensor coil 8 at the top of the pile leg is externally fixedly connected inside the weak current signal analysis processor 6. The data display 7 is externally fixedly connected to the weak current signal analysis processor 6 and serves as the human-machine interface for the monitoring device. It displays the analysis results processed by the weak current signal analysis processor 6. The data is presented to the operator in an intuitive form, such as numbers and charts. The operator can understand the torsional deformation state of the pile leg in real time through the data display 7, promptly detect abnormalities, and take corresponding measures for adjustment and handling. It has data storage and query functions, which facilitates the operator to analyze and trace historical data, and provides a reference for subsequent operation optimization and equipment maintenance. The external fixed connection of the phase gear 12 of the torsional angle phase difference sensor at the bottom of the pile leg is to the inside of the pile shoe 4. The external shape of the phase gear 12 of the torsional angle phase difference sensor at the bottom of the pile leg is set as the outer contour 15 of the phase gear of the torsional angle phase difference sensor. The external shape of the phase gear 11 of the torsional angle phase difference sensor at the top of the pile leg is set as the outer contour 15 of the phase gear of the torsional angle phase difference sensor.
[0038] Working principle: The phase angle and waveform generated by the phase difference sensor coil 8 and permanent magnet probe 9 at the top of the pile leg through electromagnetic induction will differ from those generated by the phase difference sensor coil 13 and permanent magnet probe 9 at the bottom of the pile leg through electromagnetic induction. The pulse signals with the two different phase angles and waveforms are respectively input into the weak current signal analysis processor 6. After shaping, amplification and calculation, the torsion angle and torque values fed back by the phase difference sensor 1 at the top of the pile leg and the phase difference sensor 3 at the bottom of the pile leg are output to the data display 7. The torsional deformation of the pile leg can be directly detected, providing a safety reference for the pile foundation operation of the wind power installation vessel.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A monitoring device for the torsional deformation of pile legs during the installation of offshore wind turbine piles, comprising an outer vertical truss (5) of the pile legs, characterized in that: The top of the outer vertical truss (5) of the pile leg is fixedly connected to a pile leg top torsion angle phase difference sensor (1), the inner side of the outer vertical truss (5) of the pile leg is fixedly connected to a pile leg center vertical truss (2), and the outer side of the pile leg top torsion angle phase difference sensor (1) is fixedly connected to the top of the pile leg center vertical truss (2).
2. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 1, characterized in that: The bottom of the outer vertical truss (5) of the pile leg is fixedly connected to a pile shoe (4), and the inside of the pile shoe (4) is fixedly connected to a pile leg bottom torsion angle phase difference sensor (3).
3. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 2, characterized in that: The bottom of the central vertical truss (2) of the pile leg is fixedly connected to the outside of the torsional angle phase difference sensor (3) at the bottom of the pile leg, and the bottom of the outer vertical truss (5) of the pile leg is fixedly connected to the outside of the torsional angle phase difference sensor (3) at the bottom of the pile leg.
4. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 3, characterized in that: The pile leg bottom torsion angle phase difference sensor (3) includes a pile leg bottom torsion angle phase difference sensor coil (13), and a pile leg bottom torsion angle phase difference sensor permanent magnet probe (14) is fixedly connected to the outside of the pile leg bottom torsion angle phase difference sensor coil (13).
5. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 4, characterized in that: The torsional angle phase difference sensor (1) at the top of the pile leg includes a torsional angle phase difference sensor coil (8) at the top of the pile leg. A permanent magnet probe (9) for the torsional angle phase difference sensor at the top of the pile leg is fixedly connected inside the coil (8). A second central vertical truss (10) for the pile leg is fixedly connected inside the outer vertical truss (5) of the pile leg. A phase gear (12) for the torsional angle phase difference sensor at the bottom of the pile leg is fixedly connected outside the second central vertical truss (10) of the pile leg. A phase gear (11) for the torsional angle phase difference sensor at the top of the pile leg is fixedly connected outside the second central vertical truss (10).
6. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 5, characterized in that: The pile shoe (4) is fixedly connected to the inside of the pile leg bottom torsion angle phase difference sensor permanent magnet probe (14). The outside of the pile leg bottom torsion angle phase difference sensor permanent magnet probe (14) is fixedly connected to the inside of the pile leg bottom torsion angle phase difference sensor coil (13). The outside of the pile leg bottom torsion angle phase difference sensor coil (13) is fixedly connected to the outside of the pile leg top torsion angle phase difference sensor coil (8).
7. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 6, characterized in that: The external of the torsion angle phase difference sensor coil (13) at the bottom of the pile leg is fixedly connected to a weak current signal analysis processor (6), and the external of the torsion angle phase difference sensor coil (8) at the top of the pile leg is fixedly connected to the inside of the weak current signal analysis processor (6).
8. The monitoring device for monitoring the torsional deformation of pile legs during the installation of offshore wind turbine piles as described in claim 7, characterized in that: The weak current signal analysis processor (6) is externally fixedly connected to a data display (7), the externally fixedly connected to the pile leg bottom torsional angle phase difference sensor phase gear (12) is the inside of the pile shoe (4), the external of the pile leg bottom torsional angle phase difference sensor phase gear (12) is set as the torsional angle phase difference sensor phase gear outline (15), and the external of the pile leg top torsional angle phase difference sensor phase gear (11) is set as the torsional angle phase difference sensor phase gear outline (15).