Offshore wind power operation and maintenance embarkation system

Abstract

The utility model relates to the technical field of offshore wind power operation and maintenance, in particular to an offshore wind power operation and maintenance embarkation system. The system comprises a fixed anchor point, a traction rope and a traction machine, the fixed anchor point is fixed on a wind power operation and maintenance platform; the traction machine is arranged on the operation and maintenance ship; the two ends of the traction rope are connected to the fixed anchor point and the traction machine respectively; the traction machine is provided with a tension detector, the tension detector is used for monitoring the tension of the traction rope in real time, and the traction machine is used for winding and unwinding the traction rope according to a monitoring result of the tension detector; operation and maintenance personnel move back and forth between the wind power operation and maintenance platform and the operation and maintenance ship through the traction rope. According to the utility model, the safe and efficient movement of operation and maintenance personnel between the wind power operation and maintenance platform and the operation and maintenance ship is realized through the fixed anchor point, the high-strength traction rope and the traction machine equipped with the tension detector; the influence of the complex marine environment is effectively resisted, the safety in the operation and maintenance process is ensured, and the operation and maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power operation and maintenance, in particular to an offshore wind power operation and maintenance boarding system. Background Art

[0002] In recent years, with the strong support of national policies and the strong drive of market demand, my country's offshore wind power industry has ushered in unprecedented development opportunities, and the installed capacity has continued to grow rapidly. By the end of 2023, the cumulative grid-connected installed capacity has exceeded 36.5 million kilowatts. This achievement not only demonstrates my country's leading position in the field of new energy, but also puts forward higher and more stringent requirements for wind power operation and maintenance technology. As offshore wind farms expand to offshore and deep sea areas, operation and maintenance operations face unprecedented challenges, mainly including increased difficulty in operation and maintenance, rising costs, increased construction risks, and shortage of professional talents.

[0003] Among the many links in offshore wind power operation and maintenance, wind turbine embarkation is a crucial link, which is directly related to the safety and work efficiency of the operation and maintenance personnel. Wind turbine embarkation refers to the process of operation and maintenance personnel using professional equipment to safely transfer from the operation and maintenance ship to the wind turbine tower. However, traditional embarkation methods such as ladder systems, hanging basket systems, embarkation piers and helicopter transportation all have limitations to varying degrees.

[0004] Poor adaptability to sea conditions: The ladder system and trestle system are difficult to ensure the safety of operation and maintenance personnel in severe sea conditions, such as strong winds and large waves. The violent relative movement between the operation and maintenance ship and the wind turbine tower not only increases the difficulty of the operation, but also greatly increases the safety risk.

[0005] High economic cost: The installation and maintenance costs of equipment such as hanging baskets and trestles are high, and professional technicians are required to operate and maintain them, which undoubtedly increases the overall operation and maintenance burden of wind farms.

[0006] Significant environmental impact: Frequent landing operations may cause mechanical noise pollution, interfere with the marine ecology, and even cause physical damage, which is not conducive to the sustainable development of the marine environment.

[0007] Application limitations: The size and design differences of different wind turbine towers, as well as the limitations of specific environmental conditions, make it difficult for traditional embarkation methods to fully adapt, affecting the flexibility and efficiency of operation and maintenance operations. Utility Model Content

[0008] The purpose of the present utility model is to provide an offshore wind power operation and maintenance boarding system in order to solve at least one of the above-mentioned technical problems.

[0009] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0010] An offshore wind power operation and maintenance boarding system, comprising: a fixed anchor point, a towing rope, and a towing machine;

[0011] The fixed anchor point is fixed to the wind power operation and maintenance platform; the towing machine is arranged on the operation and maintenance ship; both ends of the towing rope are respectively connected to the fixed anchor point and the towing machine;

[0012] A tension detector is arranged on the towing machine, and the tension detector is used to monitor the tension of the towing rope in real time, and the towing machine takes in and releases the towing rope according to the monitoring result of the tension detector;

[0013] Operation and maintenance personnel travel back and forth between the wind power operation and maintenance platform and the operation and maintenance ship through the towing rope.

[0014] Furthermore, the system further comprises: a safety hook;

[0015] The safety hook is used to connect the bundling strap and the towing rope; the bundling strap is fixed to the fixed anchor point.

[0016] Furthermore, the system further comprises: a drone; a bundling strap fixing device for fixing the bundling strap is arranged at the bottom of the drone;

[0017] The drone fixes the bundling strap to the fixed anchor point.

[0018] Furthermore, the safety hook comprises: a pulley; the towing rope passes through the pulley to tow the operation and maintenance personnel.

[0019] Furthermore, the system further comprises: a sliding device;

[0020] One end of the sliding device is connected to the sling of the operation and maintenance personnel, and the other end is connected to the towing rope through the pulley; the sliding device is used to assist the operation and maintenance personnel to slide along the direction of the towing rope.

[0021] Furthermore, the sliding device comprises: a speed control brake, which is used to control the speed of the operation and maintenance personnel during the process of returning to the operation and maintenance ship.

[0022] Furthermore, the fixed anchor point is an L-shaped anchor point made of stainless steel, and the size and position of the fixed anchor point are set according to the characteristics of the wind turbine tower barrel.

[0023] Furthermore, the towing rope comprises: a rope fixator, an anti-collision spring;

[0024] The rope fixator is fixed to the end of the towing rope, and the rope fixator is used to prevent the towing rope from winding during the pulling process;

[0025] The anti-collision spring is connected to the rope fixator, and the anti-collision spring is used to provide braking and buffering for the operation and maintenance personnel.

[0026] The beneficial effects of the present utility model are as follows:

[0027] The offshore wind power operation and maintenance boarding system of the present utility model provides a stable and safe boarding passage for operation and maintenance personnel through a rope bridge system, that is, the combination of a traction rope, safety hooks, and sliding devices. Even in harsh environments with large waves and high wind speeds, the tension detector monitors and adjusts the tension of the traction rope in real time to keep it in a straight state, greatly reducing the safety risks brought by hull swaying or wind influence.

[0028] The rope bridge system of the present utility model can be used in various weather and sea conditions, without being restricted by weather, improving the flexibility of wind power operation and maintenance. Operation and maintenance personnel can quickly and safely travel back and forth between the operation and maintenance ship and the wind power operation and maintenance platform, reducing the time delayed due to waiting for suitable weather, thereby improving the overall operation efficiency.

[0029] Compared with the traditional boarding method, the system structure of the present utility model is simple, without complex mechanical systems, reducing equipment costs and maintenance costs. At the same time, due to the improvement of operation efficiency, it also indirectly reduces labor costs and time costs.

[0030] Components such as fixed anchor points and traction ropes in the system of the present utility model can be customized according to the specific conditions of the wind farm to adapt to different turbine foundation forms, structures, and operation and maintenance requirements. This highly customized design makes the system of the present utility model have wide applicability and good adaptability.

[0031] The present utility model introduces an unmanned aerial vehicle (UAV) for the installation and recovery of straps, realizing unmanned operation at high altitudes, which not only reduces the burden on personnel but also improves the safety and efficiency of operations. At the same time, the application of the tension detector makes the process of taking in and releasing the traction rope more intelligent and automated, further enhancing the stability and reliability of the system. Brief Description of the Drawings

[0032] Figure 1 Schematic diagram of the overall structure of the offshore wind power operation and maintenance boarding system according to an embodiment of the present utility model;

[0033] Figure 2 Schematic diagram of the partial structure of the offshore wind power operation and maintenance boarding system according to an embodiment of the present utility model;

[0034] Figure 3 Schematic diagram of an unmanned aerial vehicle according to an embodiment of the present utility model;

[0035] Figure 4 Schematic diagram of the connection of the fixed anchor point according to an embodiment of the present utility model;

[0036] Figure 5Schematic diagram of the traction rope structure of an embodiment of the present utility model;

[0037] Figure 6 Schematic diagram of the traction machine structure of an embodiment of the present utility model;

[0038] Figure 7 Schematic diagram of the connection of the sliding device of an embodiment of the present utility model.

[0039] Among them, 1. UAV; 1-1. Strapping fixing device; 2. Fixed anchor point; 3. Safety hook; 3-1. Pulley; 4. Traction rope; 4-1. Rope fixator; 4-2. Anti-collision spring; 5. Traction machine; 5-1. Tension detector; 6. Sliding device; 6-1. Speed control brake. Specific embodiments

[0040] Now, the content of the present utility model will be described with reference to exemplary embodiments. It should be understood that the described embodiments are only for enabling those of ordinary skill in the art to better understand and thus implement the content of the present utility model, rather than implying any limitation on the scope of the present utility model.

[0041] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment".

[0042] Embodiment 1

[0043] Figure 1 Schematic diagram of the overall structure of the offshore wind power operation and maintenance boarding system of an embodiment of the present utility model; Figure 2 Schematic diagram of the partial structure of the offshore wind power operation and maintenance boarding system of an embodiment of the present utility model; Figure 6 Schematic diagram of the traction machine structure of an embodiment of the present utility model. As Figure 1 、 2 、6 shown, according to an embodiment of the present utility model, an offshore wind power operation and maintenance boarding system includes: a fixed anchor point 2, a traction rope 4, and a traction machine 5;

[0044] The fixed anchor point 2 is fixed to the wind power operation and maintenance platform; the traction machine 5 is arranged on the operation and maintenance ship; both ends of the traction rope 4 are respectively connected to the fixed anchor point 2 and the traction machine 5;

[0045] A tension detector 5-1 is arranged on the traction machine 5, and the tension detector 5-1 is used to monitor the tension of the traction rope 4 in real time, and the traction machine 5 takes in and releases the traction rope 4 according to the monitoring result of the tension detector 5-1;

[0046] The operation and maintenance personnel travel back and forth between the wind power operation and maintenance platform and the operation and maintenance ship via the traction rope 4.

[0047] Preferably, the fixed anchor point 2 is an L-shaped anchor point made of stainless steel, and the size and position of the fixed anchor point 2 are set according to the characteristics of the wind turbine tower.

[0048] In this embodiment, the fixed anchor point 2 is carefully made of high-strength, corrosion-resistant L-shaped stainless steel material to ensure long-term reliability in harsh marine environments. The fixed anchor point 2 not only has excellent mechanical strength and can steadily withstand the huge pulling force generated by the traction rope 4 during operation, but also can be customized according to actual needs during the wind turbine foundation design stage through precise size design to meet the application needs in different scenarios. The fixed anchor point 2 is cleverly installed on the wind power operation and maintenance platform. As a solid backing and fixed end point of the traction rope 4, the fixed anchor point 2 is firmly fixed to the wind turbine tower ladder or the foundation platform through advanced processes such as welding, providing a safe and reliable support point for the operation and maintenance personnel. The traction rope 4 is made of high-strength, wear-resistant rope, and the two ends are respectively connected to the fixed anchor point 2 and the traction machine 5 on the operation and maintenance ship; considering the particularity of the offshore wind power environment, the traction rope 4 should have wind resistance, seawater corrosion resistance and other properties. The traction machine 5 is installed on the operation and maintenance ship to control the retraction and release of the traction rope 4, thereby controlling the movement of the operation and maintenance personnel between the wind power operation and maintenance platform and the operation and maintenance ship. The tractor 5 is equipped with a tension detector 5-1, which is used to monitor the tension of the traction rope 4 in real time to ensure the safety of the operation and maintenance personnel during the movement. According to the feedback of the tension detector 5-1, the tractor 5 can automatically or manually adjust the tension of the traction rope 4 so that the traction rope 4 always remains in a straight line, while preventing excessive tension from causing rope breakage or injury to the operation and maintenance personnel, thereby effectively resisting the impact of the marine environment.

[0049] During the preparation stage, ensure that the fixed anchor point 2 is firmly installed on the wind power operation and maintenance platform; connect one end of the traction rope 4 to the fixed anchor point 2 and the other end to the traction machine 5 on the operation and maintenance ship; check the status of the traction rope 4 and the traction machine 5 to ensure that everything is normal. During the movement stage of the operation and maintenance personnel, the operation and maintenance personnel wear safety equipment and prepare to move through the traction rope 4; the traction machine starts, and gradually releases or tightens the traction rope 4 according to the preset tension value or the instructions of the operation and maintenance personnel; the operation and maintenance personnel are guided by the traction rope and safely travel back and forth between the wind power operation and maintenance platform and the operation and maintenance ship. At the same time, during the movement stage, the tension detector 5-1 monitors the tension of the traction rope 4 in real time and feeds back the data to the traction machine 5; the traction machine 5 automatically or manually adjusts the tension of the traction rope 4 according to the feedback from the tension detector 5-1 to ensure the safety of the operation and maintenance personnel.

[0050] The offshore wind power operation and maintenance boarding system of the present utility model realizes the safe and efficient movement of operation and maintenance personnel between the wind power operation and maintenance platform and the operation and maintenance ship through fixed anchor points, high-strength towing ropes, and a towing machine equipped with a tension detector. The present utility model effectively resists the influence of complex offshore environments, ensures safety during the operation and maintenance process, and improves the operation and maintenance efficiency.

[0051] Figure 3 Schematic diagram of an unmanned aerial vehicle for an embodiment of the present utility model; Figure 4 Schematic diagram of the connection of the fixed anchor point for an embodiment of the present utility model. As Figure 3-4 shown, according to an embodiment of the present utility model, the offshore wind power operation and maintenance boarding system further includes: a safety hook 3;

[0052] The safety hook 3 is used to connect the bundling strap and the towing rope 4; the bundling strap is fixed to the fixed anchor point 2.

[0053] Preferably, the boarding system further includes: an unmanned aerial vehicle 1; a bundling strap fixing device 1-1 for fixing the bundling strap is provided at the bottom of the unmanned aerial vehicle 1;

[0054] The unmanned aerial vehicle 1 fixes the bundling strap to the fixed anchor point 2.

[0055] In this embodiment, the offshore wind power operation and maintenance boarding system further introduces the designs of the unmanned aerial vehicle 1 and the safety hook 3 to optimize and enhance the flexibility and safety of the system. Specifically, the unmanned aerial vehicle 1, as an auxiliary tool, is equipped with a bundling strap fixing device 1-1 at its bottom. When the unmanned aerial vehicle 1 flies over the fixed anchor point 2, this device can accurately control the release of the bundling strap and firmly fix the bundling strap to the fixed anchor point 2. This process does not require direct manual operation, greatly improving the operation efficiency and safety, especially in harsh offshore environments. The safety hook 3, as a key component connecting the bundling strap and the towing rope 4, is designed to ensure that the towing rope 4 can be stably and safely connected to the wind power operation and maintenance platform. During the boarding operation, the operation and maintenance personnel can safely travel back and forth between the operation and maintenance ship and the wind power operation and maintenance platform under the control of the towing machine. The introduction of the safety hook 3 not only simplifies the connection process but also enhances the overall stability and safety of the system.

[0056] The present utility model realizes a more efficient and flexible operation mode by introducing the designs of the unmanned aerial vehicle and the safety hook: the unmanned aerial vehicle assists in fixing the bundling strap, reducing the risk and difficulty of manual operation and improving the operation efficiency; while the safety hook ensures a stable connection between the towing rope and the wind power operation and maintenance platform, providing a safer and more reliable moving channel for the operation and maintenance personnel.

[0057] Figure 7 Schematic diagram of the connection of the sliding device for an embodiment of the present utility model. According to an embodiment of the present utility model, the safety hook 3 includes: a pulley 3-1; the towing rope 4 passes through the pulley 3-1 to tow the operation and maintenance personnel.

[0058] Preferably, the boarding system further includes: a sliding device 6;

[0059] One end of the sliding device 6 is connected to the sling of the operation and maintenance personnel, and the other end is connected to the towing rope 4 through a pulley 3-1; the sliding device 6 is used to assist the operation and maintenance personnel to slide along the direction of the towing rope 4.

[0060] Preferably, the sliding device 6 includes: a speed control brake 6-1, which is used to control the speed of the operation and maintenance personnel during the return to the operation and maintenance ship.

[0061] In this embodiment, the design of the safety hook 3 further integrates the pulley 3-1, so that the towing rope 4 can smoothly pass through the pulley 3-1, thereby realizing the stable towing of the operation and maintenance personnel. This design not only reduces the friction during towing, but also enables the towing force to be more effectively transmitted to the operation and maintenance personnel, improving the towing efficiency. As a key component connecting the operation and maintenance personnel and the towing rope 4, one end of the sliding device 6 is firmly connected to the sling of the operation and maintenance personnel, and the other end is cleverly connected to the towing rope 4 through the pulley 3-1. When the operation and maintenance personnel need to board or return, the sliding device 6 can freely slide along the direction of the towing rope 4, providing a safe and convenient moving path for the operation and maintenance personnel. In particular, the speed control brake 6-1 included in the sliding device 6 allows the operation and maintenance personnel to adjust the sliding speed according to actual needs during the return to the operation and maintenance ship, increasing the flexibility and safety of the operation.

[0062] The utility model not only provides a safer and more efficient moving channel for the operation and maintenance personnel, but also significantly improves the controllability and comfort of the operation and maintenance work; the design of the sliding device enables the operation and maintenance personnel to slide smoothly along the direction of the towing rope, greatly reducing physical consumption and potential safety risks; the addition of the speed control brake enables the operation and maintenance personnel to flexibly adjust the sliding speed according to the actual situation, further improving the flexibility and safety of the operation.

[0063] Figure 5 It is a schematic diagram of the structure of the towing rope according to an embodiment of the utility model. As Figure 5 shown, the towing rope 4 includes: a rope fixator 4-1 and an anti-collision spring 4-2;

[0064] The rope fixator 4-1 is fixed at the end of the towing rope 4, and the rope fixator 4-1 is used to prevent the towing rope 4 from winding during pulling;

[0065] The anti-collision spring 4-2 is connected to the rope fixator 4-1, and the anti-collision spring 4-2 is used to provide braking and buffering for the operation and maintenance personnel.

[0066] In this embodiment, the towing rope 4 includes a rope fixator 4-1 and a collision-proof spring 4-2. The rope fixator 4-1 is installed at the end of the towing rope 4, aiming to effectively prevent the possible winding phenomenon during the pulling process of the towing rope 4, ensure the smooth operation of the towing rope 4 and the safety of operation and maintenance personnel; the rope fixator 4-1 is made of high-strength materials, has excellent stability and durability, and can withstand the tensile impact under various complex environments. Closely connected to the rope fixator 4-1 is the collision-proof spring 4-2; as a safety buffer device of the traction system, the unique elastic design of the collision-proof spring 4-2 enables it to quickly provide a braking effect and slow down the impact force when operation and maintenance personnel move quickly or encounter unexpected situations, thus protecting operation and maintenance personnel from injury. At the same time, the collision-proof spring 4-2 can also absorb vibrations to a certain extent, improving the stability and comfort of the entire traction system. The close connection between the rope fixator 4-1 and the collision-proof spring 4-2 ensures the coordinated play of the braking and buffering functions, providing a safer and more reliable guarantee for operation and maintenance operations.

[0067] Through the organic combination of the rope fixator and the collision-proof spring, the utility model not only effectively solves the problem of the towing rope winding, but also significantly improves the safety and comfort of the system; the stable design of the rope fixator ensures the smooth operation of the towing rope, while the braking and buffering functions of the collision-proof spring provide a solid protection barrier for operation and maintenance personnel.

[0068] Embodiment Two

[0069] According to an embodiment of the utility model, an offshore wind power operation and maintenance boarding system includes six key units: a fixed anchor point 2, a drone 1, a safety hook 3, a towing rope 4, a tractor 5, and a sliding device 6.

[0070] Fixed anchor point unit: The fixed anchor point 2 is an L-shaped anchor point for fixing the towing rope 4. The fixed anchor point 2 is made of stainless steel that meets the structural requirements, has sufficient strength and corrosion resistance, and its size can be designed according to requirements during the design stage of the wind turbine foundation. It is welded beside the climbing ladder of the wind turbine tower or on the foundation platform, and this component is small in size.

[0071] Drone unit: The drone 1 includes a drone fuselage and a strap fixing device 1-1 for fixing the strap on the fixed anchor point 2. The drone 1 flies above the fixed anchor point 2, and the strap fixing device 1-1 extracts the strap and puts the strap around the fixed anchor point 2.

[0072] Safety hook unit: The safety hook 3 is equipped with a pulley 3-1. The safety hook 3 is used to connect the strap and the towing rope 4. One end of the safety hook 3 is connected to the strap, and the other end the towing rope 4 passes through the pulley 3-1 to tow the operation and maintenance personnel.

[0073] The traction rope unit includes a rope fixator 4-1 and a collision-proof spring 4-2. The traction rope 4 is used to tow the operation and maintenance personnel, and as a rope bridge, it safely tow the operation and maintenance personnel to the climbing ladder or the foundation platform. After the fan operation is completed, the operation and maintenance personnel return to the operation and maintenance ship safely through the traction rope 4. One end of the traction rope 4 is connected to the sling on the operation and maintenance personnel, and the other end passes through the pulley of the safety hook 3 and is connected to the traction machine 5. The traction rope 4 can withstand sufficient tensile force and can resist a certain amount of wind force, and safely support the operator in a strong wind environment. The rope fixator 4-1 can be used to prevent the traction rope 4 from getting entangled during the pulling process, and the collision-proof spring 4-2 can be used for the braking and buffering of the operation and maintenance personnel.

[0074] The traction machine unit includes a tension detector 5-1, which is used for the rope winding and unwinding work of the traction rope 4, and can adjust the tension of the traction rope 4 by speed change to prevent the traction rope 4 from being too loose and causing serious swinging. When the operation and maintenance personnel need to climb the fan, the traction machine 5 winds the traction rope 4. When the operation and maintenance is over, the traction machine 5 unwinds the traction rope 4.

[0075] The sliding device unit, the sliding device 6 includes a speed control brake 6-1. The sliding device 6 is used to fix the operation and maintenance personnel to prevent the operation and maintenance personnel from swinging in the air. The speed control brake 6-1 is used to control the speed of the operation and maintenance personnel during the return process to the operation and maintenance ship. One end of the sliding device 6 is connected to the sling of the operation and maintenance personnel, and the other end is connected to the traction rope 4 through a pulley 3-1. When the traction rope 4 is towed, the sliding device 6 assists the operation and maintenance personnel to slide along the direction of the traction rope 4.

[0076] The utility model realizes the safe and efficient boarding and return of offshore wind power operation and maintenance personnel through an integrated rope bridge system of fixed anchor points, unmanned aerial vehicles, safety hooks, traction ropes, traction machines and sliding devices, effectively resists adverse factors such as sea waves and wind speeds, improves the safety and flexibility of operation and maintenance operations, reduces operation and maintenance costs, and ensures the high availability of the wind farm under various weather conditions.

[0077] The utility model can safely transport operation and maintenance personnel and maintenance tools, reduces the risks brought by the ship movement caused by uncontrollable factors such as sea waves and wind speeds, and ensures the safety of transportation; the utility model can be used under various weather and sea conditions, including under conditions of relatively high wind speeds or large sea waves, which makes the operation and maintenance operations not restricted by the weather and improves the availability of the wind farm.

[0078] The utility model can be customized according to the specific situation of the wind farm to adapt to different fan foundation forms, structures and operation and maintenance requirements. Moreover, the boarding facilities are simple, without complex mechanical systems, and the operation and maintenance costs are low.

[0079] The working principle of the utility model:

[0080] Install the strap connected to one end of the towing rope 4 on the fixed anchor point 2 by means of the drone 1;

[0081] The operation and maintenance personnel are connected to the towing rope 4 through a sling;

[0082] Retract and release the towing rope 4 by means of the winch 5; during the retraction and release process, the tension detector 5-1 monitors the tension of the towing rope 4 in real time, and the winch 5 adjusts the retraction and release of the towing rope 4 according to the monitoring results of the tension detector 5-1 to keep the towing rope 4 in a straight state.

[0083] The operation and maintenance personnel arrive at the wind power operation and maintenance platform for operation;

[0084] The winch 5 releases the rope in the reverse direction, and the operation and maintenance personnel return to the operation and maintenance ship; the drone 1 recovers the strap on the fixed anchor point 2.

[0085] In this embodiment, first, the drone 1 is used to carry the strap fixing device 1-1 to accurately install the strap connected to one end of the towing rope 4 on the fixed anchor point 2 of the wind power equipment. This process realizes the unmanned operation of high-altitude work and reduces the manual risk. Subsequently, the operation and maintenance personnel are connected to the towing rope 4 through a special sling, ensuring personal safety and providing a stable connection point for subsequent movement at the same time. Driven by the winch 5, the towing rope 4 is accurately controlled to retract and release. During the process, the tension detector 5-1 monitors and adjusts the tension of the towing rope 4 in real time to ensure that it remains in a straight state under complex sea conditions, effectively avoiding swinging caused by wind force or ship swaying, and further ensuring the safety of the operation and maintenance personnel. The operation and maintenance personnel arrive at the wind power operation and maintenance platform smoothly with the help of the towing rope 4 and the sliding device 6. After performing the necessary maintenance work, they return to the operation and maintenance ship by the winch 5 releasing the rope in the reverse direction. Finally, the drone 1 is dispatched again to recover the strap and the towing rope 4 on the fixed anchor point 2, realizing the closed-loop of the entire operation and maintenance boarding process.

[0086] The unmanned aerial vehicle 1 first installs the strap with the safety hook 3 and the towing rope 4 on the fixed anchor point 2 on the designated wind turbine through the strap fixing device 1-1; the size of the fixed anchor point 2 is designed according to the structural safety, can bear the tension of the towing rope 4, and matches the size of the strap fixing device 1-1 on the unmanned aerial vehicle 1. The position of the fixed anchor point 2 can be welded between the tower barrel and the ladder, and its height position can be determined according to the local sea conditions and the distance between the ship and the tower barrel. It is recommended that the vertical height of the fixed anchor point 2 from the sea surface is greater than the horizontal distance between the ship and the tower barrel. One end of the towing rope 4 is connected to the maintenance personnel through the pulley 3-1 and the sling, and the other end is used to tow the maintenance personnel through the tractor 5; the towing rope 4 is equipped with a rope fixator 4-1 to prevent the towing rope 4 from knotting in the sea breeze environment and ship swaying. Its installation position is near the ladder end. At the same time, it is equipped with an anti-collision spring 4-2, which can be used as a braking device to brake the sliding device 6 when the maintenance personnel reach the ladder and stop pulling, preventing the maintenance personnel from colliding with the ladder at too high a speed and causing personal injury. In extreme cases, if the towing rope 4 is wound and fails, the maintenance personnel can unfasten the safety buckle with the sliding device 6 and swing directly to the ladder end through the towing rope 4, or unfasten the safety buckle with the towing and slide back to the ship directly. The tractor 5 winds the towing rope 4 through the electro-mechanical principle to achieve the towing effect; the tension detector 5-1 can detect the tension of the rope by the bending moment caused by the rope winding on the pin shaft, and the tension of the towing rope 4 can be adjusted in real time through the speed change device on the tractor 5; to prevent the towing rope 4 from being too loose and causing the maintenance personnel to hit the ladder or flip in the air under the conditions of sea breeze and ship swaying, the towing rope 4 should be pulled as straight as possible. Therefore, the tractor 5 is equipped with a rope tension detector 5-1. The tension detector 5-1 can detect the tension of the rope by the bending moment caused by the rope winding on the pin shaft. The tractor 5 can set a certain tension range, and the tension of the towing rope 4 can be adjusted through the speed change device on the tractor 5, so that the towing rope 4 always remains in a straight line. The maintenance personnel reach the ladder or the foundation platform through the towing rope 4 and the sliding device 6 to carry out maintenance work; the sling of the maintenance personnel is used to fix the maintenance personnel on the towing rope 6 through the sliding device 6. To reduce the sway of the maintenance personnel in the vertical direction of the towing rope 4, two sets of double-row pulleys can be used for the pulley 3-1 to improve the safety performance of the assembly. To reduce the sway of the maintenance personnel, the maintenance personnel are equipped with a safety rope fixed on the maintenance ship to prevent the maintenance personnel from falling. The maintenance personnel can unfasten the sling when they reach the ladder or the foundation platform and enter the wind turbine for maintenance work. The maintenance personnel return; the unmanned aerial vehicle 1 retrieves the strap and the towing rope 4. During the return process of the maintenance personnel, the maintenance personnel put on the sling again, and the tractor 5 reversely pays out the rope under a certain tension by gravity, so that the maintenance personnel can slowly return to the maintenance ship to complete the maintenance operation. The sliding device 6 is equipped with a speed control brake 6-1, and the speed can be manually controlled during the return of the maintenance personnel to prevent the maintenance personnel from colliding with the ship due to too fast a falling speed.After the work is completed, the operation and maintenance personnel re - wear the sling, release the towing rope 4 in the reverse direction through gravity and the tractor 5, and slide back to the operation and maintenance ship to complete the operation and maintenance operation. The towing rope 4 is retrieved by the UAV 1.

[0087] The utility model significantly improves the safety, adaptability and efficiency of the operation and maintenance operation by introducing a rope - bridge system composed of a UAV, a towing rope, a sliding device, etc.; effectively reduces the safety risks caused by uncontrollable factors such as sea waves and wind speed during the operation and maintenance process; the UAV is responsible for installing and retrieving equipment, reducing the need for direct human operation. At the same time, multiple safety measures (such as rope fixators, anti - collision springs, safety ropes, etc.) equipped in the towing rope system ensure the stability and safety of the operation and maintenance personnel during the transfer process. The high adaptability of the utility model enables it to be used in a variety of weather and sea conditions, including high - wind speed and large - wave conditions, thus improving the operation and maintenance efficiency and availability of the wind farm; this flexibility not only reduces the operation and maintenance interruption caused by weather reasons, but also extends the power generation time of the wind farm.

[0088] The boarding facilities of the utility model are simple and do not have complex mechanical systems, reducing the equipment maintenance cost and operation difficulty, as well as the labor cost and time cost. Finally, from the perspective of environmental protection and sustainability, the utility model reduces the use of large machinery, reduces the potential impact on the marine environment, conforms to the green and low - carbon development trend, and helps to promote the sustainable development of the wind power industry.

[0089] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above - mentioned technical features, and should also cover other technical solutions formed by any combination of the above - mentioned technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above - mentioned features with the (but not limited to) technical features with similar functions disclosed in the present application.

[0090] It should be understood that the magnitude of the serial numbers of the steps in the utility model content and the embodiments of the present utility model does not absolutely mean the sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present utility model.

Claims

1. An offshore wind power operation and maintenance boarding system, characterized in that: include: Fixed anchor point (2), traction rope (4), traction machine (5); The fixed anchor point (2) is fixed to the wind power operation and maintenance platform; the traction machine (5) is arranged on the operation and maintenance ship; the two ends of the traction rope (4) are respectively connected to the fixed anchor point (2) and the traction machine (5); The traction machine (5) is provided with a tension detector (5-1), and the tension detector (5-1) is used to monitor the tension of the traction rope (4) in real time. The traction machine (5) retracts and releases the traction rope (4) according to the monitoring result of the tension detector (5-1); The operation and maintenance personnel travel back and forth between the wind power operation and maintenance platform and the operation and maintenance vessel via the traction rope (4).

2. The offshore wind power operation and maintenance boarding system according to claim 1 is characterized in that: The system further comprises: a safety hook (3); The safety hook (3) is used to connect the strap and the traction rope (4); the strap is fixed to the fixed anchor point (2).

3. The offshore wind power operation and maintenance boarding system according to claim 2 is characterized in that: The system further comprises: an unmanned aerial vehicle (1); a strap fixing device (1-1) for fixing the strap is arranged at the bottom of the unmanned aerial vehicle (1); The drone (1) fixes the strap on the fixed anchor point (2).

4. The offshore wind power operation and maintenance boarding system according to claim 2 is characterized in that: The safety hook (3) comprises: a pulley (3-1); and the traction rope (4) passes through the pulley (3-1) to traction the operation and maintenance personnel.

5. The offshore wind power operation and maintenance boarding system according to claim 4 is characterized in that: The system further comprises: a sliding device (6); One end of the sliding device (6) is connected to the lifting device of the operation and maintenance personnel, and the other end is connected to the traction rope (4) through the pulley (3-1); the sliding device (6) is used to assist the operation and maintenance personnel to slide along the direction of the traction rope (4).

6. The offshore wind power operation and maintenance boarding system according to claim 5 is characterized in that: The sliding device (6) comprises: a speed control gate (6-1) for controlling the speed of the maintenance personnel when they are returning to the maintenance ship.

7. The offshore wind power operation and maintenance boarding system according to claim 1 is characterized in that: The fixed anchor point (2) is an L-shaped anchor point made of stainless steel, and the size and position of the fixed anchor point (2) are set according to the characteristics of the wind turbine tower.

8. The offshore wind power operation and maintenance boarding system according to claim 1 is characterized in that: The traction rope (4) comprises: a rope fixer (4-1) and an anti-collision spring (4-2); The rope fixer (4-1) is fixed to the end of the traction rope (4), and the rope fixer (4-1) is used to prevent the traction rope (4) from being entangled during the traction process; The anti-collision spring (4-2) is connected to the rope fixer (4-1), and the anti-collision spring (4-2) is used to provide braking and buffering for operation and maintenance personnel.

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