Offshore wind power foundation pile corrosion detection equipment

Abstract

The invention discloses corrosion detection equipment for an offshore wind power foundation pile, and belongs to the technical field of offshore wind power. The outer side of each pile body is provided with a fast-assembly type lifting mechanism, and the lower end of the easily-deployed annular supporting mechanism is further provided with a buoyancy control mechanism. An all-dimensional corrosion detection mechanism is installed on the easily-deployed annular supporting mechanism, a fresh water collecting and supplying mechanism is installed on the top of each pile body, and the fresh water collecting and supplying mechanisms are used for supplying fresh water to the attaching detection assemblies to serve as coupling media for ultrasonic detection. Through the cooperation effect of the fast-assembly lifting mechanism and the easily-deployed annular supporting mechanism, the efficient operation and maintenance mode of one set of mobile detection robot and multiple fixed lifting base stations is achieved, and the efficient corrosion detection function of all pile bodies in a wind power plant is achieved.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power technology, specifically to an offshore wind power foundation pile corrosion detection device. Background Technology

[0002] Monopile foundations have become the most common type of offshore wind power foundation due to their simple structure, low cost, and wide range of applications. During use, the foundation piles are exposed to the marine corrosion environment for a long time. The marine corrosion environment is divided into five zones from top to bottom: the marine atmosphere zone, the splash zone, the tidal zone, the seawater immersion zone, and the seabed mud zone. Among them, the corrosion is most severe in the splash zone of the pile foundation.

[0003] Patent CN109868848A discloses an online detection device for corrosion in the splash zone of a single pile foundation for offshore wind power. This device uses a floating platform or lifting platform as a support structure and employs multiple cameras to comprehensively photograph the outer wall of the tower foundation to obtain corrosion detection information in the wave zone. However, this device and existing technologies still have the following technical problems: 1. The device floats up and down with the tide using a ring-shaped buoy, or pulls the ring-shaped platform up and down by a drive motor to extend and retract the lifting rope. This only allows the camera to monitor the splash zone of the pile body. The ring-shaped platform is limited in its ability to detect corrosion on the outer wall of the pile body due to the splash zone, and it is difficult to meet the function of a single integrated platform to detect corrosion in the entire area of ​​the pile body. 2. Offshore wind power usually exists in the form of wind farms, with up to 100 wind turbines in a single wind farm. If this equipment is used to inspect the foundation piles of wind turbines, then the equipment needs to be installed on each pile, which significantly increases the inspection cost.

[0004] Based on this, the present invention designs a corrosion detection device for offshore wind power foundation piles to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a corrosion detection device for offshore wind power foundation piles.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A corrosion detection device for offshore wind power foundation piles includes an easily deployable ring support mechanism that can be quickly installed on the outside of the pile. Each pile is equipped with a quick-release lifting mechanism on its outer side. The quick-release lifting mechanism is used to quickly connect with the deployed ring support mechanism and control the deployed ring support mechanism to move radially along the pile in different zones of the pile. The lower end of the quick-release ring support mechanism is also equipped with a buoyancy control mechanism. The easily deployable ring support mechanism is equipped with an all-around corrosion detection mechanism, which includes a circumferential moving component, a uniform cleaning component, and a contact detection component. The circumferential moving component is installed on the upper end of the easily deployable ring support mechanism. The uniform cleaning component is used to clean the outer wall of the pile, and the contact detection component is used to closely contact the outer wall of the pile for corrosion detection. A camera is also fixedly installed on the moving end of the circumferential moving component. Each pile is equipped with a freshwater collection and supply mechanism at its top, which is used to supply freshwater to the bonding testing components as a coupling medium for ultrasonic testing.

[0007] Furthermore, the buoyancy control mechanism includes an airbag, a float, an air tube, and an elbow. The airbag is fixedly installed at the bottom of the easily deployable ring support mechanism. One end of the air tube is fixedly connected to the airbag, and the other end of the air tube passes through the float and is fixedly connected to the elbow. An air pump connected to the air tube and used to control the inflation and deflation of the airbag is also installed on the easily deployable ring support mechanism. The float ensures that one end of the air tube is always above the sea level, and the elbow prevents seawater from splashing into the air tube.

[0008] Furthermore, the easily deployable ring support mechanism includes a first clamp, a second clamp, a traveling wheel, and a locking component. One end of the first clamp and the second clamp are hinged together, and a locking component for fixing the two clamps is installed between the other ends of the first clamp and the second clamp. Traveling wheels that are rotatably connected to the outer wall of the pile body are circumferentially arrayed and equally spaced on the first clamp and the second clamp.

[0009] Furthermore, the quick-installation lifting mechanism includes a quick-installation component and a lifting component. Several lifting components are installed in a circumferential array on the top of the pile body. Each lifting component is equipped with a quick-installation component, which is used to connect with the first clamp and the second clamp.

[0010] Furthermore, the lifting assembly includes a lifting motor, an upper winding reel, a lower winding reel, and a cable. The lifting motor is fixedly installed at the upper end of the pile body, and the output end of the lifting motor is fixedly connected to the upper winding reel. The lower winding reel is rotatably installed at the lower end of the pile body. The cable is wound around the outside of the upper and lower winding reels, and the upper and lower winding reels are connected by cable transmission.

[0011] Furthermore, the quick-installation assembly includes a connecting block and a connecting seat. The connecting block is fixedly connected to the cable, and the connecting seat is fixedly connected to the first clamp and the second clamp. The connecting seat has a slot for accommodating the connecting block and a clearance slot for the cable movement. The outer wall of the connecting seat is equipped with an anti-detachment structure to prevent the connecting block from coming off.

[0012] Furthermore, the freshwater collection and supply mechanism includes a water storage tank, an inlet pipe, an outlet pipe, and a collection tank. The water storage tank is fixedly installed on the surrounding moving assembly. A water pump for delivering liquid is installed inside the water storage tank. A collection tank is fixedly installed at the upper end of the pile body, and a filter screen is installed at the upper end of the collection tank. An inlet pipe is fixedly installed at the upper end of the water storage tank, and an outlet pipe that cooperates with the inlet pipe is fixedly installed at the lower end of the collection tank. An outlet check valve and an inlet check valve are respectively installed in the outlet pipe and the inlet pipe. When the inlet pipe and the outlet pipe come into contact, the valve stems of the outlet check valve and the inlet check valve push each other, so that the water in the collection tank is automatically injected into the water storage tank through the outlet pipe and the inlet pipe, realizing the automatic water replenishment operation of the water storage tank.

[0013] Furthermore, the uniform cleaning component includes a first linear module slide, a cleaning motor, a cleaning brush, and a linkage reciprocating vertical movement component. The linkage reciprocating vertical movement component is mounted on the surrounding moving component. The first linear module slide is fixedly mounted on the moving end of the linkage reciprocating vertical movement component. The cleaning motor is fixedly mounted on the moving end of the first linear module slide, and the cleaning brush is fixedly mounted on the output end of the cleaning motor.

[0014] Furthermore, the bonding detection component includes a floating propulsion component, a circulating medium component, and an ultrasonic detection probe. The floating propulsion component is mounted on the surrounding moving component, and the moving end of the floating propulsion component is equipped with the circulating medium component and the ultrasonic detection probe. The circulating medium component is located between the pile body and the ultrasonic detection probe.

[0015] Furthermore, the circulating medium assembly includes a support cylinder, a guide cylinder, a contact layer, and a spray pipe. Two support cylinders are provided and rotatably connected to the support frame. Two guide cylinders are also provided and rotatably connected to the support frame. The contact layer is wrapped around the outside of the support cylinder and between the support cylinder and the guide cylinder, so that all support cylinders and guide cylinders are connected in a driving manner. The contact layer is in contact with the detection end of the ultrasonic detection probe. The spray pipe is fixedly installed on the support frame, with the liquid outlet of the spray pipe facing the contact layer. The water pump outputs the liquid in the water storage tank from the spray pipe. The ultrasonic testing probe is slidably connected to the support frame. A stop block is fixedly installed at the end of the ultrasonic testing probe away from the pile body. A second spring is sleeved on the outside of the ultrasonic testing probe, and the two ends of the second spring abut against the ultrasonic testing probe and the support frame respectively, so that the testing end of the ultrasonic testing probe is always in contact with the contact layer.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention modularizes the lifting drive function and corrosion detection function, and permanently or semi-permanently installs the quick-installation lifting mechanism on each wind power foundation pile that needs to be inspected. This not only provides stable and reliable lifting power, but also provides a standardized and reliable mechanical connection interface for the mobile inspection platform. The heaviest and most stable drive part is separated from the inspection platform, which effectively reduces the load on the inspection platform and realizes one installation per foundation pile for long-term reuse. This allows the quick-installation lifting mechanism to serve all periodic inspection tasks of the pile body for a long time without repeated disassembly and assembly, which significantly saves the deployment time for each inspection.

[0017] 2. This invention achieves a highly efficient operation and maintenance mode of one mobile inspection robot plus multiple fixed lifting base stations through the combined effect of a quick-installation lifting mechanism and an easily deployable ring support mechanism. When the inspection task begins, the easily deployable ring support mechanism is towed to the first target pile by a tugboat using its own buoyancy. There is no need to start the lifting equipment. Next to the pile, the clamp is opened manually or with auxiliary tools, put on the pile, and locked. Then, the connecting card on it is quickly inserted and locked to the connecting card block on the lifting mechanism cable hanging from the top of the pile. The whole process can be completed in a short time. After the inspection of one pile is completed, the quick-installation interface is disconnected, the clamp is opened, the platform floats up, and it is towed to the next pile. Repeating the above steps can achieve a highly efficient corrosion inspection function for all piles in the wind farm.

[0018] 3. The quick-installation lifting mechanism and the buoyancy control mechanism on the easy-to-deploy ring support mechanism have a dynamic synergistic effect. By inflating the airbags, the entire easy-to-deploy ring support mechanism gains positive buoyancy, allowing it to be easily and cost-effectively towed between various wind turbine foundations within the wind farm by ordinary maintenance tugboats. It also facilitates the connection between the quick-installation lifting mechanism and the easy-to-deploy ring support mechanism on the outside of the pile. When inspecting the pile in the tidal range or the fully submerged seawater area, the lifting mechanism provides the main lowering and lifting traction force. The buoyancy control mechanism, by adjusting the buoyancy of the airbags, offsets part or even most of the underwater weight of the platform, achieving load reduction and protection for the lifting motor and cables. In complex water flow, it also offsets the lateral force brought by the water flow. The quick-installation lifting mechanism, the easy-to-deploy ring support mechanism, and the buoyancy control mechanism work together to achieve stable, efficient, and low-energy precise movement and operation of the inspection platform across the entire height range of the pile, from the atmospheric zone to the fully submerged zone.

[0019] 4. The freshwater collection and supply mechanism can establish a sustainable and zero-cost source of coupling agent, creating a replenishment point for each pile. This eliminates the need for land transport. The valve stems are opened by connecting the outlet and inlet pipes, allowing freshwater to automatically transfer from the collection tank to the storage tank under gravity. This ensures the testing platform has sufficient coupling agent for long-term, continuous testing, avoiding frequent replenishment that could interrupt the testing process. Through a simple, low-cost mechanical structure, fully automated coupling agent replenishment is achieved, systematically reducing the load, energy consumption, and complexity of the entire testing platform. Furthermore, unlike seawater, which contains salt, microorganisms, and various ions that can corrode probes, cause crystallization blockage, and have unstable acoustic properties, freshwater performs superiorly as a coupling agent.

[0020] 5. When the ring-moving plate moves, the contact layer can move around the support cylinder and guide cylinder under the friction of the pile body. The spray pipe continuously sprays water onto the contact layer to wet it, so that the ultrasonic testing probe can scan the side wall of the pile body on the surface of the contact layer. This effectively reduces the sound energy loss of the ultrasonic testing probe, improves the accuracy of the ultrasonic testing probe's test results, and prevents the rough surface from wearing down the ultrasonic testing probe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This invention provides a three-dimensional corrosion detection device for offshore wind power foundation piles. Figure 1 ; Figure 2 This invention provides a three-dimensional corrosion detection device for offshore wind power foundation piles. Figure 2 ; Figure 3 This is a side view of a corrosion detection device for offshore wind power foundation piles according to the present invention; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 for Figure 2 Enlarged view of point B in the middle; Figure 6 This is a partial three-dimensional representation of a corrosion detection device for offshore wind power foundation piles according to the present invention. Figure 1 ; Figure 7 This is a partial three-dimensional representation of a corrosion detection device for offshore wind power foundation piles according to the present invention. Figure 2 ; Figure 8 This is a partial three-dimensional representation of a corrosion detection device for offshore wind power foundation piles according to the present invention. Figure 3 ; Figure 9 This is a partial three-dimensional representation of a corrosion detection device for offshore wind power foundation piles according to the present invention. Figure 4 ; Figure 10 This is a partial three-dimensional representation of a corrosion detection device for offshore wind power foundation piles according to the present invention. Figure 5 .

[0023] Figure 11 This is a schematic diagram of the buoyancy control mechanism of the present invention.

[0024] The labels in the diagram represent: 1. Pile body; 2. Quick-installation lifting mechanism; 21. Quick-installation component; 211. Connecting block; 212. Connecting seat; 22. Lifting component; 221. Lifting motor; 222. Upper winding reel; 223. Lower winding reel; 224. Cable; 3. Easy-deployment ring support mechanism; 31. First clamp; 32. Second clamp; 33. Traveling wheel; 34. Locking seat; 35. Locking block; 4. All-around corrosion detection mechanism; 41. Circumferential moving component; 411. Circumferential moving plate; 412. Guide rail; 413. Circumferential moving motor; 414. Gear; 415. Gear ring; 42. Uniform cleaning component; 421. First linear module slide; 422. Cleaning motor; 423. Cleaning brush; 424. Vertical movement 425. Limiting rod; 426. Connecting block; 427. Roller; 428. Ring plate; 43. Wave groove; 44. Adhesion detection component; 45. Second linear module slide; 46. Support frame; 47. Guide rod; 48. First spring; 49. Support cylinder; 40. Guide cylinder; 41. Contact layer; 42. Ultrasonic detection probe; 43. Stop block; 44. Second spring; 45. Spray pipe; 56. Buoyancy control mechanism; 57. Airbag; 58. Float plate; 59. Air pipe; 50. Elbow; 61. Camera; 72. Freshwater collection and supply mechanism; 73. Water storage tank; 74. Inlet pipe; 75. Outlet check valve; 76. Inlet check valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In some embodiments, please refer to the accompanying drawings. Figures 1-11 A corrosion detection device for offshore wind power foundation piles includes an easily deployable ring support mechanism 3 that can be quickly installed on the outside of the pile body 1. Each pile body 1 is equipped with a quick-release lifting mechanism 2 on its outer side. The quick-release lifting mechanism 2 is used to quickly connect with the deployment ring support mechanism 3 and control the deployment ring support mechanism 3 to move radially along the pile body 1 in different zones of the pile body 1. The lower end of the quick-release ring support mechanism 3 is also equipped with a buoyancy control mechanism 5. In some embodiments, the buoyancy control mechanism 5 includes an airbag 51, a float 52, an air pipe 53, and a bend 54. The airbag 51 is fixedly installed at the bottom of the easily deployable annular support mechanism 3. One end of the air pipe 53 is fixedly connected to the airbag 51, and the other end of the air pipe 53 passes through the float 52 and is fixedly connected to the bend 54. An air pump (not shown in the figure) connected to the air pipe 53 and used to control the inflation and deflation of the airbag 51 is also installed on the easily deployable annular support mechanism 3. The float 52 ensures that one end of the air pipe 53 is always above the sea level, and the bend 54 prevents seawater from splashing into the air pipe 53. An all-around corrosion detection mechanism 4 is installed on the easily deployable ring support mechanism 3. The all-around corrosion detection mechanism 4 includes a surrounding moving component 41, a uniform cleaning component 42, and a contact detection component 43. The surrounding moving component 41 is installed on the upper end of the easily deployable ring support mechanism 3. The uniform cleaning component 42 and the contact detection component 43 are installed on the moving end of the surrounding moving component 41. The uniform cleaning component 42 is used to clean the outer wall of the pile body 1, and the contact detection component 43 is used to closely contact the outer wall of the pile body 1 to perform corrosion detection. A camera 6 is also fixedly installed on the moving end of the surrounding moving component 41. Each pile 1 is equipped with a fresh water collection and supply mechanism 7 at its top. The fresh water collection and supply mechanism 7 is used to supply fresh water to the bonding detection component 43 as a coupling medium for ultrasonic detection.

[0027] In this invention, the quick-installation lifting mechanism 2 and the easy-to-deploy ring support mechanism 3 are designed separately. By separating the lifting drive function from the corrosion detection function, the self-load and structural complexity of the easy-to-deploy ring support mechanism 3 can be effectively reduced, and the stability of the easy-to-deploy ring support mechanism 3 during lifting and moving can be increased. The easy-to-deploy ring support mechanism 3 can float on the sea surface through the buoyancy control mechanism 5, making it convenient for tugboats to control the easy-to-deploy ring support mechanism 3 to run on different piles 1 in the wind power group; after the easy-to-deploy ring support mechanism 3 approaches the pile 1 to be tested, the operation and maintenance personnel can quickly install the easy-to-deploy ring support mechanism 3 on the outside of the pile 1. Through the surrounding moving component 41, the uniform cleaning component 42, the fitting detection component 43 and the camera 6 can be controlled to move around the outer periphery of the pile 1 to perform corrosion detection on the outer wall of the pile 1. After connecting the easy-to-deploy ring support mechanism 3 to the output end of the quick-installation lifting mechanism 2, the easy-to-deploy ring support mechanism 3 can be raised and lowered along the pile body 1 through the quick-installation lifting mechanism 2, so that the camera 6 and the contact detection component 43 can detect the marine atmospheric zone and the splash zone of the pile body 1. The buoyancy of the easy-to-deploy ring support mechanism 3 can be controlled by the buoyancy control mechanism 5, so that the camera 6 and the contact detection component 43 can detect corrosion in the marine tidal zone and the seawater fully immersed zone of the pile body 1. Thus, the entire corrosion detection work of the pile body 1 in different zones can be completed using a single integrated device. By transferring the easy-to-deploy ring support mechanism 3 between different pile bodies 1 in the wind farm, this application can carry out low-cost, high-efficiency, all-zone, all-round corrosion detection work for all pile bodies 1 in the wind farm at a low cost. During the inspection process, the outer wall of the pile 1 is first cleaned by the uniform cleaning component 42 to remove dirt, marine organisms, rust, and other attachments, exposing the outer wall structure of the pile 1. Then, the bonding inspection component 43 is tightly bonded to the outer wall of the pile 1 to achieve high-precision corrosion inspection of the pile 1. During the inspection process, the fresh water collection and supply mechanism 7 can automatically replenish fresh water as the coupling medium required for ultrasonic testing, eliminating the need for the easy-to-deploy ring support mechanism 3 to carry a large amount of coupling medium. This reduces the load on the easy-to-deploy ring support mechanism 3 and avoids interrupting the corrosion inspection process due to frequent replenishment of coupling medium to the bonding inspection component 43, thereby improving the corrosion inspection efficiency.

[0028] The easily deployable ring support mechanism 3 includes a first clamp 31, a second clamp 32, a traveling wheel 33, and a locking component. One end of the first clamp 31 and the second clamp 32 are hinged together, and a locking component for fixing the two is installed between the other ends of the first clamp 31 and the second clamp 32. The traveling wheel 33, which is rotatably connected to the outer wall of the pile body 1, is rotatably mounted on the first clamp 31 and the second clamp 32 in a circumferential array at equal intervals. The locking assembly includes a locking seat 34 and a locking block 35. The locking seat 34 and the locking block 35 are respectively fixedly installed at the ends of the first clamp 31 and the second clamp 32. The locking seat 34 and the locking block 35 are inserted into each other, and the locking seat 34 and the locking block 35 are provided with matching locking holes. The quick-installation lifting mechanism 2 includes a quick-installation component 21 and a lifting component 22. Several lifting components 22 are installed in a circular array on the top of the pile body 1. Each lifting component 22 is equipped with a quick-installation component 21. The quick-installation component 21 is used to connect with the first clamp 31 and the second clamp 32. The lifting assembly 22 includes a lifting motor 221, an upper winding reel 222, a lower winding reel 223, and a cable 224. The lifting motor 221 is fixedly installed at the upper end of the pile body 1, and the output end of the lifting motor 221 is fixedly connected to the upper winding reel 222. The lower winding reel 223 is rotatably installed at the lower end of the pile body 1. The cable 224 is wound around the outside of the upper winding reel 222 and the lower winding reel 223, and the upper winding reel 222 and the lower winding reel 223 are connected by transmission through the cable 224. In some embodiments, the upper winding reel 222 and the lower winding reel 223 are sprockets, and the cable 224 is a chain, so that the lifting motor 221 can drive the upper winding reel 222 to rotate to drive the cable 224 to move stably. The quick-release assembly 21 includes a connecting block 211 and a connecting seat 212. The connecting block 211 is fixedly connected to the cable 224, and the connecting seat 212 is fixedly connected to the first clamp 31 and the second clamp 32. The connecting seat 212 has a slot for accommodating the connecting block 211 and a clearance slot for the movement of the cable 224. The outer wall of the connecting seat 212 is equipped with an anti-detachment structure to prevent the connecting block 211 from falling off. In some embodiments, the anti-detachment structure uses a locking bolt, which is used to block the connecting block 211 in the connecting bracket 212 by rotating the locking bolt, thereby preventing the connecting block 211 from coming out. In some embodiments, the anti-detachment structure adopts a stop bar, which is hinged to the connecting bracket 212, allowing the stop bar to swing up and down. A torsion spring is provided on the hinge shaft between the stop bar and the connecting bracket 212. By pushing the stop bar upward, the connecting block 211 can be quickly inserted into the connecting bracket 212. Releasing the stop bar allows it to reset under the action of the torsion spring, thereby realizing the quick assembly and disassembly of the first clamp 31 and the second clamp 32 with the cable 224.

[0029] In this invention, the first clamp 31 and the second clamp 32 are fitted onto the outside of the pile body 1 and then closed. After the locking block 35 is inserted into the locking seat 34, the first clamp 31 and the second clamp 32 can be connected and fixed by installing a bolt fastening structure in the locking hole. Then, the connecting block 211 on the cable 224 is inserted into the connecting seat 212, and the anti-detachment structure prevents the connecting block 211 from coming out of the connecting seat 212, thus realizing the quick connection between the quick-installation lifting mechanism 2 and the easy-to-deploy ring support mechanism 3. By controlling the rotation of the upper winding wheel 222 by the lifting motor 221, the cable 224 can move around the upper winding wheel 222 and the lower winding wheel 223. Under the cooperation of the connecting block 211 and the connecting seat 212, the cable 224 can drive the first clamp 31 and the second clamp 32 to move vertically along the pile body 1 through the traveling wheel 33. When the easily deployable ring support mechanism 3 is working below sea level, it can adjust the buoyancy of the buoyancy control mechanism 5 to assist the operation of the lifting component 22, further reduce the operating load of the lifting component 22, and improve the service life of the lifting component 22.

[0030] The freshwater collection and supply mechanism 7 includes a water storage tank 71, an inlet pipe 72, an outlet pipe 73, and a water collection tank 74. The water storage tank 71 is fixedly installed on the surrounding moving assembly 41. A water pump (not shown in the figure) for delivering liquid is installed inside the water storage tank 71. The water collection tank 74 is fixedly installed at the upper end of the pile body 1. A filter screen for blocking dust and impurities is provided at the upper end of the water collection tank 74. In some embodiments, an extended water guide plate is also provided at the upper end of the water collection tank 74 to increase the area for collecting rainwater. A liquid inlet pipe 72 is fixedly installed at the upper end of the water storage tank 71, and a liquid outlet pipe 73, which cooperates with the liquid inlet pipe 72, is fixedly installed at the lower end of the water collection tank 74. A liquid outlet check valve 75 and a liquid inlet check valve 76 are respectively installed in the liquid outlet pipe 73 and the liquid inlet pipe 72. When the liquid inlet pipe 72 and the liquid outlet pipe 73 come into contact, the valve stems of the liquid outlet check valve 75 and the liquid inlet check valve 76 push against each other, causing the water in the water collection tank 74 to automatically flow into the water storage tank 71 through the liquid outlet pipe 73 and the liquid inlet pipe 72, thus achieving automatic water replenishment of the water storage tank 71. The water collection tank 74 can fully utilize the abundant rainfall resources at sea to collect and replenish fresh water, supplying fresh water resources to the cleaning equipment and the water storage tank 71. Furthermore, by controlling the camera 6 to raise the valve stem of the liquid outlet check valve 75, the camera 6 can be self-cleaned using fresh water.

[0031] The surrounding moving assembly 41 includes a moving plate 411, a guide rail 412, a moving motor 413, a gear 414, and a gear ring 415. The guide rail 412 is fixedly installed on the first clamp 31 and the second clamp 32. The moving plate 411 is slidably connected to the guide rail 412 via a slider. The moving motor 413 is fixedly installed on the moving plate 411, and the gear 414 is fixedly installed on the output end of the moving motor 413. The gear ring 415 is fixedly installed on the outer wall of the first clamp 31 and the second clamp 32, and the gear 414 meshes with the gear ring 415. The uniform cleaning component 42 includes a first linear module slide 421, a cleaning motor 422, a cleaning brush 423, and a linkage reciprocating vertical movement component. The linkage reciprocating vertical movement component is mounted on the ring plate 411. The first linear module slide 421 is fixedly mounted on the moving end of the linkage reciprocating vertical movement component. The cleaning motor 422 is fixedly mounted on the moving end of the first linear module slide 421. The cleaning brush 423 is fixedly mounted on the output end of the cleaning motor 422. The linkage reciprocating vertical movement assembly includes a vertical movement limiting rod 424, a connecting block 425, a roller 426, and an annular plate 427. Multiple vertical movement limiting rods 424 are provided. The upper end of the vertical movement limiting rod 424 is fixedly connected to the first linear module slide table 421, and the lower end of the vertical movement limiting rod 424 is slidably connected to the annular plate 411. The vertical movement limiting rod 424 passes through the annular plate 411 and is fixedly connected to the connecting block 425. The roller 426 is rotatably connected to the connecting block 425. The annular plate 427 is fixedly installed on the side of the first clamp 31 and the second clamp 32. A wave groove 428 is provided on the annular plate 427 to cooperate with the roller 426 for rolling. The bonding detection component 43 includes a floating propulsion component, a circulating medium component, and an ultrasonic detection probe 438. The floating propulsion component is mounted on the ring-moving plate 411. The moving end of the floating propulsion component is equipped with the circulating medium component and the ultrasonic detection probe 438. The circulating medium component is located between the pile body 1 and the ultrasonic detection probe 438.

[0032] The floating propulsion assembly includes a second linear module slide 431, a support frame 432, guide rods 433, and a first spring 434. The second linear module slide 431 is fixedly mounted on the ring-moving plate 411. Multiple guide rods 433 are provided. One end of the guide rod 433 is fixedly connected to the support frame 432, and the other end of the guide rod 433 is slidably connected to the moving end of the second linear module slide 431. The first spring 434 is sleeved on the outside of the guide rod 433, and both ends of the first spring 434 abut against the support frame 432 and the moving end of the second linear module slide 431, respectively. The circulating medium assembly includes a support cylinder 435, a guide cylinder 436, a contact layer 437, and a spray pipe 4311. Two support cylinders 435 are provided and rotatably connected to a support frame 432. Two guide cylinders 436 are also provided and rotatably connected to the support frame 432. The contact layer 437 is wrapped around the outside of the support cylinder 435 and between the support cylinder 435 and the guide cylinder 436, ensuring a driving connection between all support cylinders 435 and guide cylinders 436. The contact layer 437 is in contact with the detection end of the ultrasonic detection probe 438. In this embodiment, the contact layer 437 is made of cotton cloth or gauze, which not only has good water absorption but also has a compact structure, effectively filling the gaps in the surface being inspected, reducing the acoustic energy loss of the ultrasonic detection probe 438, increasing the sensitivity of the ultrasonic detection probe 438, and thus improving the detection accuracy; the spray pipe 4311 is fixedly installed on the support frame 432, with the outlet end of the spray pipe 4311 facing the contact layer 437, and the water pump outputs the liquid in the water storage tank 71 from the spray pipe 4311; The ultrasonic testing probe 438 is slidably connected to the support frame 432. A stop block 439 is fixedly installed at the end of the ultrasonic testing probe 438 away from the pile body 1. The second spring 4310 is sleeved on the outside of the ultrasonic testing probe 438, and the two ends of the second spring 4310 abut against the ultrasonic testing probe 438 and the support frame 432 respectively, so that the testing end of the ultrasonic testing probe 438 is always in contact with the contact layer 437. In this invention, the lifting motor 221 drives the first clamp 31 and the second clamp 32 to move vertically at intervals along the pile body 1 via the cable 224. When the first clamp 31 and the second clamp 32 stop each time, the ring motor 413 drives the gear 414 to rotate. Through the cooperation of the gear 414 and the gear ring 415, the ring plate 411 moves around the pile body 1 under the limiting action of the guide rail 412. During the movement of the annular plate 411, the roller 426 rolls within the wave groove 428 of the annular plate 427, causing the first linear module slide 421 to reciprocate vertically under the limiting action of the vertical movement limiting rod 424. Simultaneously, the first linear module slide 421 drives the cleaning motor 422 to approach the side wall of the pile body 1, and the cleaning brush 423 drives the cleaning motor 422 to rotate and clean the side wall of the pile body 1. Meanwhile, the second linear module slide 431 drives the support frame 432 to advance towards the side wall of the pile body 1. With the cooperation of the guide rod 433 and the first spring 434, the support cylinder 435 is pressed tightly against the side wall of the pile body 1, thereby causing the contact layer 437 to adhere to the side wall of the pile body 1. This allows the contact layer 437 to move around the support cylinder 435 and the guide cylinder 436 under the frictional force of the pile body 1 during the annular plate 411's annular movement. The second spring 4310 and the stop block 439 work together with the ultrasonic testing probe 438 to press the contact layer 437 against the side wall of the pile body 1. If the first clamp 31 and the second clamp 32 are on the sea surface, the spray pipe 4311 continuously sprays water onto the contact layer 437 to wet it. As a result, the ultrasonic testing probe 438 scans the side wall of the pile body 1 on the surface of the contact layer 437, effectively reducing the sound energy loss of the ultrasonic testing probe 438, improving the accuracy of the ultrasonic testing probe 438's test results, and preventing wear of the ultrasonic testing probe 438 on the rough surface. After the ultrasonic testing probe 438 completes a full scan of the pile body 1 at a certain height, the first clamp 31 and the second clamp 32 move to the next position and repeat the above actions until the entire side wall of the pile body 1 is scanned and tested.

[0033] In some embodiments, a flushing pipe is also installed at the lower end of the water collection tank 74, which can thoroughly flush the entire system with fresh water after each operation to prevent wear and corrosion of mechanical parts. If seawater is used directly as a coupling agent, it will corrode the ultrasonic testing probe 438. During the testing process, the adhesion of the contact layer 437 will accelerate the corrosion of the damaged parts of the pile 1. After the seawater on the contact layer 437 evaporates, it will also form salt crystals, causing the contact layer 437 to harden and harden, thus destroying the effect of the contact layer 437 itself. However, if fresh water is used as a coupling agent, the acoustic impedance is stable and pure, which can form a uniform and bubble-free sound wave transmission channel between the probe and the rough pile surface, so that the ultrasonic energy can be efficiently transmitted into the metal. This ensures that the acoustic conditions of the probe are consistent for each test, and the test data of different periods and different piles can be scientifically compared.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A corrosion detection device for offshore wind power foundation piles, comprising an easily deployable ring support mechanism (3) capable of being quickly installed on the outside of the pile body (1), characterized in that: Each pile (1) is equipped with a quick-release lifting mechanism (2) on its outer side. The quick-release lifting mechanism (2) is used to quickly connect with the deployment ring support mechanism (3) and control the deployment ring support mechanism (3) to move radially along the pile (1) in different zones of the pile (1). The lower end of the quick-release ring support mechanism (3) is also equipped with a buoyancy control mechanism (5). An all-round corrosion detection mechanism (4) is installed on the easy-to-deploy ring support mechanism (3). The all-round corrosion detection mechanism (4) includes a surrounding moving component (41), a uniform cleaning component (42), and a fitting detection component (43). The surrounding moving component (41) is installed on the upper end of the easy-to-deploy ring support mechanism (3). The moving end of the surrounding moving component (41) is equipped with the uniform cleaning component (42) and the fitting detection component (43). The uniform cleaning component (42) is used to clean the outer wall of the pile body (1), and the fitting detection component (43) is used to closely adhere to the outer wall of the pile body (1) for corrosion detection. A camera (6) is also fixedly installed on the moving end of the surrounding moving component (41). Each pile (1) is equipped with a fresh water collection and supply mechanism (7) at its top. The fresh water collection and supply mechanism (7) is used to supply fresh water to the bonding detection assembly (43) as a coupling medium for ultrasonic detection.

2. The corrosion detection equipment for offshore wind power foundation piles according to claim 1, characterized in that, The buoyancy control mechanism (5) includes an airbag (51), a float (52), an air tube (53), and a bend (54). The airbag (51) is fixedly installed at the bottom of the easy-to-deploy ring support mechanism (3). One end of the air tube (53) is fixedly connected to the airbag (51), and the other end of the air tube (53) passes through the float (52) and is fixedly connected to the bend (54). The easy-to-deploy ring support mechanism (3) is also equipped with an air pump that is connected to the air tube (53) and is used to control the inflation and deflation of the airbag (51). The float (52) ensures that one end of the air tube (53) is always above the sea level, and the bend (54) prevents seawater from splashing into the air tube (53).

3. The corrosion detection equipment for offshore wind power foundation piles according to claim 1, characterized in that, The easily deployable ring support mechanism (3) includes a first clamp (31), a second clamp (32), a traveling wheel (33), and a locking component. One end of the first clamp (31) and the second clamp (32) are hinged together, and a locking component for fixing the two is installed between the other ends of the first clamp (31) and the second clamp (32). The traveling wheel (33) is rotatably mounted on the first clamp (31) and the second clamp (32) in a circumferential array at equal intervals and is rolledly connected to the outer wall of the pile body (1).

4. The corrosion detection equipment for offshore wind power foundation piles according to claim 3, characterized in that, The quick-installation lifting mechanism (2) includes a quick-installation component (21) and a lifting component (22). Several lifting components (22) are arranged in a circular array on the top of the pile body (1). Each lifting component (22) is equipped with a quick-installation component (21). The quick-installation component (21) is used to connect with the first clamp (31) and the second clamp (32).

5. The corrosion detection equipment for offshore wind power foundation piles according to claim 4, characterized in that, The lifting assembly (22) includes a lifting motor (221), an upper winding reel (222), a lower winding reel (223), and a cable (224). The lifting motor (221) is fixedly installed at the upper end of the pile body (1). The output end of the lifting motor (221) is fixedly connected to the upper winding reel (222). The lower winding reel (223) is rotatably installed at the lower end of the pile body (1). The cable (224) is wound around the outside of the upper winding reel (222) and the lower winding reel (223), and the upper winding reel (222) and the lower winding reel (223) are connected by the cable (224).

6. The corrosion detection equipment for offshore wind power foundation piles according to claim 5, characterized in that, The quick-release assembly (21) includes a connecting block (211) and a connecting seat (212). The connecting block (211) is fixedly connected to the cable (224), and the connecting seat (212) is fixedly connected to the first clamp (31) and the second clamp (32). The connecting seat (212) has a slot for accommodating the connecting block (211) and a clearance slot for the movement of the cable (224). The outer wall of the connecting seat (212) is equipped with an anti-detachment structure to block the connecting block (211).

7. The corrosion detection equipment for offshore wind power foundation piles according to claim 6, characterized in that, The freshwater collection and supply mechanism (7) includes a water storage tank (71), an inlet pipe (72), an outlet pipe (73), and a collection tank (74). The water storage tank (71) is fixedly installed on the surrounding moving assembly (41). A water pump for delivering liquid is installed inside the water storage tank (71). The collection tank (74) is fixedly installed at the upper end of the pile body (1). A filter screen is installed at the upper end of the collection tank (74). An inlet pipe (72) is fixedly installed at the upper end of the water storage tank (71), and a filter screen is fixedly installed at the lower end of the collection tank (74). An outlet pipe (73) is matched with an inlet pipe (72); an outlet check valve (75) and an inlet check valve (76) are respectively installed in the outlet pipe (73) and the inlet pipe (72); when the inlet pipe (72) and the outlet pipe (73) come into contact, the valve stems of the outlet check valve (75) and the inlet check valve (76) push each other, so that the water in the collection tank (74) is automatically injected into the storage tank (71) through the outlet pipe (73) and the inlet pipe (72), thereby realizing the automatic water replenishment operation of the storage tank (71).

8. The corrosion detection equipment for offshore wind power foundation piles according to claim 7, characterized in that, The uniform cleaning component (42) includes a first linear module slide (421), a cleaning motor (422), a cleaning brush (423), and a linkage reciprocating vertical movement component. The linkage reciprocating vertical movement component is mounted on the surrounding moving component (41). The first linear module slide (421) is fixedly mounted on the moving end of the linkage reciprocating vertical movement component. The cleaning motor (422) is fixedly mounted on the moving end of the first linear module slide (421). The cleaning brush (423) is fixedly mounted on the output end of the cleaning motor (422).

9. The corrosion detection equipment for offshore wind power foundation piles according to claim 8, characterized in that, The fitting detection component (43) includes a floating propulsion component, a circulating medium component and an ultrasonic detection probe (438). The floating propulsion component is mounted on the surrounding moving component (41). The moving end of the floating propulsion component is equipped with the circulating medium component and the ultrasonic detection probe (438). The circulating medium component is located between the pile body (1) and the ultrasonic detection probe (438).

10. The corrosion detection equipment for offshore wind power foundation piles according to claim 9, characterized in that, The circulating medium assembly includes a support cylinder (435), a guide cylinder (436), a contact layer (437), and a spray pipe (4311). Two support cylinders (435) are provided and rotatably connected to the support frame (432). Two guide cylinders (436) are also provided and rotatably connected to the support frame (432). The contact layer (437) is arranged around the outside of the support cylinder (435) and between the support cylinder (435) and the guide cylinder (436), so that all the support cylinders (435) and the guide cylinders (436) are connected in a transmission manner. The contact layer (437) is in contact with the detection end of the ultrasonic detection probe (438). The spray pipe (4311) is fixedly installed on the support frame (432), and the liquid outlet end of the spray pipe (4311) is set towards the contact layer (437). The water pump outputs the liquid in the water storage tank (71) from the spray pipe (4311). The ultrasonic testing probe (438) is slidably connected to the support frame (432). A stop block (439) is fixedly installed at the end of the ultrasonic testing probe (438) away from the pile body (1). A second spring (4310) is sleeved on the outside of the ultrasonic testing probe (438), and the two ends of the second spring (4310) abut against the ultrasonic testing probe (438) and the support frame (432) respectively, so that the testing end of the ultrasonic testing probe (438) is always in contact with the contact layer (437).

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