Offshore wind power generation equipment with automatic garbage collection function

Abstract

The offshore wind power generation equipment with the automatic garbage collection function comprises a mounting ring arranged on the periphery of a fan tower in a sleeving mode, and a plurality of protection mechanisms and collection mechanisms are evenly distributed on the mounting ring. The protection mechanism is composed of a flow guide cover, a flow baffle and a herringbone flow guide plate and guides sea waves to form directional vortexes to be drawn into floating garbage. The collecting mechanism comprises an internally and externally nested double-barrel structure, an inner barrel is driven to descend by utilizing garbage gravity and water flow, an impeller is driven to drain water through spiral transmission, and automatic garbage enriching and draining are achieved. The equipment is further integrated with a hydraulic shock absorber, a buffering air bag, a buoyancy plate and a linkage pressing frame, wave impact is effectively absorbed, the posture is kept stable, and garbage can entering is assisted. The device does not need extra energy, can synchronously realize marine litter cleaning and fan foundation protection, remarkably improves the environmental protection property, safety and operation and maintenance efficiency of offshore wind power facilities, and is suitable for various offshore wind power plants.

Description

Technical Field

[0001] This invention relates to the technical field of offshore wind power generation, and specifically to an offshore wind power generation device with automatic waste collection function. Background Technology

[0002] With the continued growth in global demand for clean energy, offshore wind power, as an important component of renewable energy, is accelerating its large-scale development in deep-sea areas. However, the marine environment is complex and changeable. In addition to harsh operating conditions such as high salt spray and strong winds and waves, marine plastic pollution also poses new challenges to the safe operation of wind power facilities. Large amounts of floating debris (such as discarded fishing nets, plastic bottles, and foam blocks) accumulate around the wind turbine foundations with ocean currents, which can easily entangle the tower and corrode the coating, and may also block maintenance channels, increasing the frequency of manual cleaning and safety risks.

[0003] Currently, mainstream offshore wind turbines focus solely on power generation and lack the ability to proactively manage marine debris. While some nearshore projects have attempted to install simple debris barriers or perform regular manual cleanup, these methods have significant drawbacks: debris barriers are easily clogged and rendered ineffective, requiring frequent maintenance; manual cleanup is costly, inefficient, and unable to cover deep-sea areas, and is heavily restricted by sea conditions. More importantly, existing structures do not consider how to utilize the ocean's own energy (such as waves) to achieve automatic collection and separation of debris.

[0004] Furthermore, traditional wind turbine towers are directly exposed to wave impacts and subjected to asymmetrical loads over long periods, which can easily lead to structural fatigue and even resonance risks. Integrating the protective structure with waste collection functionality into a single design can mitigate wave impacts while simultaneously achieving environmental management, significantly enhancing the eco-friendliness and overall benefits of offshore wind power.

[0005] Therefore, there is an urgent need for a new type of offshore wind power generation equipment that integrates wave energy utilization, structural protection, automatic waste collection and dewatering separation, so as to achieve a win-win situation for green energy production and marine environmental protection. Summary of the Invention

[0006] The purpose of this invention is to overcome the technical problems of existing offshore wind power generation equipment, such as lack of environmental coordination function, inability to effectively cope with the accumulation of marine floating garbage and large wave scouring load, and to provide an offshore wind power generation equipment that combines power generation and automatic garbage collection functions.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An offshore wind power generation device with automatic waste collection function includes: A wind turbine tower, wherein an installation ring is fitted around the outer periphery of the wind turbine tower; Multiple protective mechanisms are evenly distributed along the circumference of the mounting ring. Each protective mechanism includes a flow guide shroud. Multiple layers of staggered baffles are provided on the outer inclined surface of the flow guide shroud, and a herringbone-shaped flow guide is provided between two adjacent flow guide shrouds. Multiple collection mechanisms are provided, each pair of which is symmetrically arranged on both sides of the corresponding baffle. Each collection mechanism includes an outer cylinder and an inner cylinder coaxially arranged inside the outer cylinder via a screw drive mechanism. A drain outlet is provided at the bottom of the outer cylinder, and drain outlets are distributed on the side walls and bottom of the inner cylinder.

[0008] Preferably, the outer circumference of the mounting ring is uniformly provided with a plurality of U-shaped mounting frames, and a hydraulic shock absorber is hinged to the middle of each mounting frame. The piston rod of the hydraulic shock absorber extends outward along the radial direction of the mounting ring and is connected to an inverted T-shaped mounting plate. A helical spring is sleeved on the piston rod. A guide post is vertically connected to both ends of the mounting plate. Each guide post extends inward and slides with the end of the mounting frame through a guide sleeve. The flow guide is fixed to the mounting plate through a pair of L-shaped mounting tubes, and the flow guide is fixed between two adjacent mounting frames.

[0009] Preferably, a rotating tube is coaxially supported inside the outer cylinder via a connecting frame. Two spiral grooves are symmetrically arranged at the center of the inner wall of the rotating tube. A connecting rod is slidably connected coaxially inside the rotating tube, with pin one and pin two connected to its upper and lower ends respectively. The two ends of pin two are slidably engaged in the corresponding spiral grooves. A spiral spring two is sleeved on the connecting rod. An impeller shaft is rotatably supported at the bottom center of the outer cylinder, with its upper end connected to the lower end of the rotating tube and its lower end connected to an impeller. An impeller shell is provided outside the impeller, and a drain pipe is connected to the side wall of the impeller shell. The upper end of the drain pipe is above sea level. A positioning seat is fixed at the bottom center of the inner cylinder, and the center of the positioning seat has a positioning groove adapted to the shape of pin one.

[0010] Furthermore, a speed increaser is coaxially fixed between the rotating tube and the impeller shaft via a pair of connecting brackets. The input and output ends of the speed increaser are respectively connected to the rotating tube and the impeller shaft via couplings.

[0011] Furthermore, the mounting frame is symmetrically connected with inverted L-shaped connecting brackets three on both sides. The upper end of the connecting bracket three is slidably connected to the guide post two through the guide sleeve two. The mounting tube on the same side is hinged to the guide post two with a connecting strip. The end of the connecting strip near the guide post two is provided with a connecting groove. The lower end of the guide post two is evenly connected with X-shaped pressure brackets.

[0012] Furthermore, a buoyancy plate is fixedly connected to the bottom of the pair of mounting tubes.

[0013] Furthermore, the inner circumference of the mounting ring is uniformly provided with multiple arc-shaped buffer airbags.

[0014] Furthermore, the outer wall of the inner cylinder is coaxially fixed with multiple limiting rings distributed along its axial direction.

[0015] Furthermore, the sliding contact surfaces of the inner cylinder and the outer cylinder are provided with O-ring seals.

[0016] Compared with the prior art, the present invention has the following advantages: 1. It can efficiently and automatically collect marine debris without requiring external power.

[0017] Through the coordinated flow channel design of the guide shroud, baffle, and herringbone guide plate, the natural ocean waves are cleverly used to form a directional vortex above the collection mechanism, actively sucking up the garbage into the bin; combined with the double-layer drainage structure and impeller drainage system, the garbage and seawater are quickly separated, significantly improving collection efficiency and capacity, and is energy-saving and sustainable throughout the process.

[0018] 2. It integrates automatic waste collection, wind turbine tower protection, and structural self-adaptation functions, combining high reliability with ecological benefits.

[0019] The protective mechanism effectively reduces the direct impact of waves on the wind turbine tower through the diversion and flow diversion effects, reduces structural load, and extends the service life of the equipment; the hydraulic shock absorption system, together with the helical spring, achieves multi-level buffering to ensure stable operation of the whole machine under harsh sea conditions; at the same time, it continuously collects floating garbage in the surrounding sea area during normal power generation, realizing the synergistic effect of clean energy production and marine environmental purification, and significantly enhancing the comprehensive value and sustainability of offshore wind power facilities. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall front view of the present invention.

[0022] Figure 3 This is a top view of the overall structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure for mounting the ring and the buffer airbag.

[0024] Figure 5 This is a first-person view structural diagram of the entire protective mechanism (excluding the deflector).

[0025] Figure 6 This is a structural diagram of the entire protective mechanism (excluding the deflector) from a second-view perspective.

[0026] Figure 7This is a structural schematic diagram of the entire collection mechanism (with the outer cylinder cut open) from a first-person perspective.

[0027] Figure 8 This is a structural schematic diagram of the entire collection mechanism (with the outer cylinder cut open) from a second perspective.

[0028] Figure 9 This is a schematic diagram of the rotating tube and connecting rod.

[0029] Figure 10 This is a structural schematic diagram of the inner cylinder and the positioning seat.

[0030] in: 10-Wind turbine tower; 101-Mounting ring; 102-Buffer airbag; 20-Protective mechanism; 201-Mounting frame; 202-Hydraulic shock absorber; 203-Mounting plate; 204-Helical spring 1; 205-Guide post 1; 206-Guide sleeve 1; 207-Mounting tube; 208-Flow guide; 209-Baffle; 210-Flow guide; 211-Buoyancy plate; 30-Collection mechanism; 301-Outer cylinder; 301a-Drain outlet; 302-Connecting frame one; 303-Rotating pipe; 303a-Spiral groove; 304-Connecting rod; 305-Pin one; 306-Pin two; 307-Spiral spring two; 308-Impeller shaft; 309-Impeller; 310-Impeller shell; 311-Drain pipe; 312-Connecting frame two; 313-Increaser; 314-Inner cylinder; 314a-Drain outlet; 315-Positioning seat; 315a-Positioning groove; 316-Limiting ring; 317-O-ring seal; 318-Connecting frame three; 319-Guide post two; 320-Guide sleeve two; 321-Connecting strip; 321a-Connecting groove; 322-Lower pressure frame. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 10 As shown, this embodiment provides an offshore wind power generation device with automatic waste collection function, including: Wind turbine tower 10, wherein an installation ring 101 is fitted around the outer periphery of the wind turbine tower 10; Multiple protective mechanisms 20 are evenly distributed along the circumference of the mounting ring 101. Each protective mechanism 20 includes a flow guide 208. Multiple layers of staggered baffles 209 are provided on the outer inclined surface of the flow guide 208. A herringbone-shaped flow guide 210 is provided between two adjacent flow guides 208. Multiple collection mechanisms 30 are symmetrically arranged on both sides of the corresponding baffle 209. Each collection mechanism 30 includes an outer cylinder 301 and an inner cylinder 314 coaxially disposed inside the outer cylinder 301 via a screw drive mechanism. The bottom of the outer cylinder 301 has a drain outlet 301a, and the side walls and bottom of the inner cylinder 314 have drain outlets 314a. During operation, waves impact the baffle 209 layer by layer from bottom to top along the outer slope of the guide shroud 208, and then split along both sides of the guide shroud 208. Under the further guidance of the outer arc surface of the herringbone guide plate 210, a directional vortex is formed directly above the inner cylinder 314, which automatically collects floating debris into the inner cylinder 314. At the same time, this flow field design effectively reduces the direct scouring of the wind turbine tower 10 by the waves and reduces the structural load. In addition, the double-layer drainage structure formed by the outer cylinder 301 and the inner cylinder 314 allows seawater to be quickly discharged through the drain outlet 314a and the leak outlet 301a, achieving efficient separation of garbage and seawater, which not only increases the single collection capacity but also reduces the burden of subsequent cleaning and treatment.

[0033] In this embodiment, a plurality of U-shaped mounting frames 201 are uniformly arranged on the outer periphery of the mounting ring 101. A hydraulic shock absorber 202 is hinged to the middle of each mounting frame 201. The piston rod of the hydraulic shock absorber 202 extends radially outward along the mounting ring 101 and is connected to an inverted T-shaped mounting plate 203. A helical spring 204 is sleeved on the piston rod. Guide posts 205 are vertically connected to both ends of the mounting plate 203. Each guide post 205 extends inward and slides with the end of the mounting frame 201 through a guide sleeve 206. The flow guide 208 is fixed to the mounting plate 203 through a pair of L-shaped mounting tubes 207. The flow guide plate 210 is fixed between two adjacent mounting frames 201. The hydraulic shock absorber 202 and the helical spring 204 form a composite buffer system, which can effectively absorb wave impact energy; the guide post 205 and the guide sleeve 206 form a precision guide pair to ensure that the fairing 208 maintains a stable posture under dynamic sea conditions, avoids structural fatigue or failure due to violent shaking, and significantly improves the durability and wind and wave resistance of the protective mechanism 20.

[0034] In this embodiment, a rotating tube 303 is coaxially rotatably supported inside the outer cylinder 301 via a connecting frame 302. Two spiral grooves 303a are symmetrically arranged on the inner wall of the rotating tube 303. A connecting rod 304 is coaxially slidably connected inside the rotating tube 303, with pins 305 and 306 connected to its upper and lower ends respectively. The two ends of pin 306 slidably engage within the corresponding spiral grooves 303a. A spiral spring 307 is sleeved on the connecting rod 304. An impeller shaft 308 is rotatably supported at the bottom center of the outer cylinder 301. Its upper end is connected to the lower end of the rotating tube 303, and its lower end is connected to an impeller 309. An impeller shell 310 is provided on the outside of the impeller 309. A drain pipe 311 is connected to the side wall of the impeller shell 310. The upper end of the drain pipe 311 is higher than the sea level. A positioning seat 315 is fixed at the bottom center of the inner cylinder 314. The center of the positioning seat 315 is provided with a positioning groove 315a that matches the shape of the pin 305. When waves carry floating debris into the inner cylinder 314, the combined effect of the debris's gravity and the water's impact causes the inner cylinder 314 to move downwards along the axial direction. The inner cylinder 314 pushes the connecting rod 304 downwards through the positioning seat 315, causing the pin 306 to slide along the spiral groove 303a, thereby driving the rotating tube 303 to rotate. The rotating tube 303 then drives the impeller shaft 308 and impeller 309 to rotate, discharging the seawater at the bottom of the outer cylinder 301 through the drain pipe 311, lowering the internal water level, and allowing the floating debris to accumulate and remain in the inner cylinder 314.

[0035] Furthermore, a speed increaser 313 is coaxially fixed between the rotating tube 303 and the impeller shaft 308 via a pair of connecting brackets 312. The input and output ends of the speed increaser 313 are respectively connected to the rotating tube 303 and the impeller shaft 308 via couplings. The speed increaser 313 converts the low-speed, high-torque rotational motion of the rotating tube 303 into the high-speed rotation of the impeller 309, thereby driving the impeller 309 to efficiently discharge seawater from the outer cylinder 301, accelerating the waste dewatering process and preventing water accumulation from affecting subsequent collection.

[0036] Furthermore, the mounting frame 201 is symmetrically connected to two sides with inverted L-shaped connecting brackets 318. The upper end of the connecting brackets 318 is slidably connected to the guide post 319 via the guide sleeve 320. The mounting tube 207 on the same side is hinged to the guide post 319 with a connecting strip 321. The end of the connecting strip 321 near the guide post 319 is provided with a connecting groove 321a. The lower end of the guide post 319 is evenly connected with X-shaped pressure brackets 322. When the flow guide 208 is impacted by waves, it drives the mounting pipe 207 to move radially inward along the mounting ring 101. Through the transmission of the connecting bar 321, it drives the guide post 319 and the lower pressure frame 322 to move downwards synchronously. When the lower pressure frame 322 abuts against the upper surface of the inner cylinder 314, it pushes the inner cylinder 314 to overcome the elastic force of the helical spring 307 and retract downwards into the outer cylinder 301. Nearby water currents carrying floating debris can more easily enter the inner cylinder 314. The connecting groove 321a has a stroke buffering function, which can limit the transmission displacement of the connecting bar 321 during weak wave impacts, preventing the lower pressure frame from prematurely pushing the inner cylinder 314 into the seawater, thereby reducing the risk of seawater accidentally entering the inner cylinder 314.

[0037] Furthermore, a buoyancy plate 211 is fixedly connected to the bottom of the pair of mounting tubes 207. The buoyancy plate 211 provides additional buoyancy, balances the weight of the fairing 208 and its associated structures, maintains the overall horizontal attitude of the protective mechanism 20, prevents capsizing due to top-heavy design, and ensures structural stability, especially in high sea states.

[0038] Furthermore, the inner circumference of the mounting ring 101 is uniformly provided with multiple arc-shaped buffer airbags 102. The buffer airbags 102 fill the space between the mounting ring 101 and the wind turbine tower 10, absorbing the relative motion impact caused by wave swaying, avoiding direct metal-to-metal collision that could cause wear or structural damage, extending the service life of the equipment, and reducing operating noise.

[0039] Furthermore, the outer wall of the inner cylinder 314 is coaxially fixed with multiple limiting rings 316 distributed along its axial direction. As radial guides and centering elements, the limiting rings 316 maintain sliding contact with the inner wall of the outer cylinder 301 during the lifting and lowering process of the inner cylinder 314, effectively limiting the radial offset of the inner cylinder 314 and ensuring that it remains coaxial with the outer cylinder 301. This structure prevents jamming, wear of the sealing ring 317, or failure of the screw drive mechanism caused by misalignment, ensuring the smoothness and long-term reliability of the lifting movement.

[0040] Furthermore, the sliding contact surfaces of the inner cylinder 314 and the outer cylinder 301 are provided with O-ring seals 317. While ensuring the smooth lifting and lowering of the inner cylinder 314, the O-ring seals 317 effectively prevent seawater from seeping into the movement gap, prevent salt spray corrosion of the internal transmission mechanism, and improve the durability and maintenance-free performance of the equipment in the marine environment.

[0041] The working process of an offshore wind power generation device with automatic waste collection function is as follows: During operation, waves impact the multi-layered baffles 209 from bottom to top along the outer slope of the guide shroud 208. Guided by the herringbone-shaped guide plate 210, a directional vortex forms directly above the inner cylinder 314, drawing floating debris into the inner cylinder 314. The weight of the debris and the impact of the water flow cause the inner cylinder 314 to descend. The positioning seat 315 pushes the connecting rod 304, causing the pin 306 to slide along the spiral groove 303a inside the rotating tube 303, driving the rotating tube 303 to rotate. After being accelerated by the speed increaser 313, the impeller shaft 308 drives the impeller 309 to drain water at high speed, lowering the water level inside the outer cylinder 301 and achieving debris accumulation. Simultaneously, the guide shroud 208 moves inward due to wave impact, and through the installation pipe 207 and connecting strip 321, it links the pressure frame 322 downward, assisting the inner cylinder 314 to contract, lowering the inlet to facilitate debris entry. The hydraulic shock absorber 202 and the buffer airbag 102 work together to absorb wave loads, the buoyancy plate 211 maintains structural balance, and the O-ring seal 317 and the limit ring 316 ensure smooth and reliable lifting.

[0042] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An offshore wind power generation device with automatic waste collection function, characterized in that, include: Wind turbine tower (10), with an installation ring (101) fitted around the outer periphery of the wind turbine tower (10); Multiple protective mechanisms (20) are evenly distributed along the circumference of the mounting ring (101). Each protective mechanism (20) includes a flow guide (208). Multiple layers of staggered baffles (209) are provided on the outer inclined surface of the flow guide (208). A herringbone-shaped flow guide (210) is provided between two adjacent flow guides (208). Multiple collection mechanisms (30) are provided, each pair of collection mechanisms (30) being symmetrically arranged on both sides of the corresponding baffle (209). Each collection mechanism (30) includes an outer cylinder (301) and an inner cylinder (314) coaxially arranged inside the outer cylinder (301) via a screw drive mechanism. A drain outlet (301a) is provided at the bottom of the outer cylinder (301), and drain outlets (314a) are distributed on the side walls and bottom of the inner cylinder (314).

2. The offshore wind power generation equipment with automatic waste collection function according to claim 1, characterized in that, The mounting ring (101) is uniformly provided with a plurality of U-shaped mounting frames (201) on its outer periphery. A hydraulic shock absorber (202) is hinged to the middle of each mounting frame (201). The piston rod of the hydraulic shock absorber (202) extends outward along the radial direction of the mounting ring (101) and is connected to an inverted T-shaped mounting plate (203). A helical spring (204) is sleeved on the piston rod. Guide posts (205) are vertically connected to both ends of the mounting plate (203). Each guide post (205) extends inward and slides with the end of the mounting frame (201) through a guide sleeve (206). The flow guide (208) is fixed to the mounting plate (203) through a pair of L-shaped mounting tubes (207). The flow guide plate (210) is fixed between two adjacent mounting frames (201).

3. The offshore wind power generation equipment with automatic waste collection function according to claim 1, characterized in that, The outer cylinder (301) is internally supported by a rotating tube (303) via a connecting frame (302). The inner wall of the rotating tube (303) has two symmetrically arranged spiral grooves (303a). A connecting rod (304) is slidably connected internally to the rotating tube (303), with pins 1 (305) and 2 (306) connected to its upper and lower ends respectively. The two ends of pin 2 (306) are slidably fitted into the corresponding spiral grooves (303a). A spiral spring 2 (307) is sleeved on the connecting rod (304). The outer cylinder ( The bottom center of the inner cylinder (301) is rotatably supported by an impeller shaft (308), the upper end of which is connected to the lower end of the rotating tube (303), and the lower end is connected to an impeller (309). The impeller (309) is provided with an impeller shell (310) on the outside. The side wall of the impeller shell (310) is connected to a drain pipe (311). The upper end of the drain pipe (311) is higher than the sea level. The bottom center of the inner cylinder (314) is fixed with a positioning seat (315). The center of the positioning seat (315) is provided with a positioning groove (315a) that matches the shape of the pin (305).

4. The offshore wind power generation equipment with automatic waste collection function according to claim 3, characterized in that, A speed increaser (313) is coaxially fixed between the rotating tube (303) and the impeller shaft (308) via a pair of connecting brackets (312). The input and output ends of the speed increaser (313) are respectively connected to the rotating tube (303) and the impeller shaft (308) via couplings.

5. The offshore wind power generation equipment with automatic waste collection function according to claim 3, characterized in that, The mounting frame (201) is symmetrically connected to two sides of an inverted L-shaped connecting frame three (318). The upper end of the connecting frame three (318) is slidably connected to a guide post two (319) through a guide sleeve two (320). The mounting tube (207) on the same side is hinged to the guide post two (319) with a connecting strip (321). The end of the connecting strip (321) near the guide post two (319) is provided with a connecting groove (321a). The lower end of the guide post two (319) is evenly connected to an X-shaped pressure frame (322).

6. The offshore wind power generation equipment with automatic waste collection function according to claim 2, characterized in that, A buoyancy plate (211) is fixedly connected to the bottom of a pair of mounting tubes (207).

7. The offshore wind power generation equipment with automatic waste collection function according to claim 1, characterized in that, The inner circumference of the mounting ring (101) is uniformly provided with multiple arc-shaped buffer airbags (102).

8. The offshore wind power generation equipment with automatic waste collection function according to claim 3, characterized in that, The outer wall of the inner cylinder (314) is coaxially fixed with multiple limiting rings (316) distributed along its axial direction.

9. A marine wind power generation device with automatic waste collection function according to claim 3, characterized in that, The sliding contact surfaces of the inner cylinder (314) and the outer cylinder (301) are provided with O-ring seals (317).

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