Anti-scouring mechanism for offshore wind power equipment

Abstract

The invention discloses an anti-scour mechanism for offshore wind power equipment. The anti-scour mechanism comprises a pile foundation and an anti-scour structure, the anti-scouring structure is mounted on the pile foundation; the anti-scouring structure comprises a fixing assembly, a buffering assembly and an anti-loss assembly. The fixing assembly is installed on the pile foundation, the buffering assembly is installed on the fixing assembly, and the loss prevention assembly is installed on the pile foundation. The invention relates to the technical field of offshore wind power equipment, and has the following beneficial effects that through the arrangement of the anti-scouring structure, under the mutual cooperation of the fixing assembly, the buffering assembly and the anti-loss assembly, the strength of underwater current formed by water flow pressure increase in the area in front of the pile foundation is effectively reduced, and meanwhile the buffering function is achieved; serious damage to the equipment caused by rigid connection of the equipment is prevented, meanwhile, the seabed is reinforced, and sediment is prevented from flowing away.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power equipment, and specifically relates to an anti-scouring mechanism for offshore wind power equipment. Background Art

[0002] Offshore wind power generation is a clean and environmentally friendly power generation method, which is being vigorously promoted in various countries. Wind power generation ranks second only to hydropower and accounts for 16% of the global renewable energy power generation. The installed capacity of offshore wind turbines in China is also increasing year by year, and the offshore wind power pile foundation is the key to supporting the entire offshore wind turbine;

[0003] Due to the constant presence of waves and surges in seawater, and the presence of the pile foundation changes the water flow state around the pile foundation. When the waves or surges approach the pile foundation, the water flow pressure in the front area of the pile foundation increases, forming a downward-flowing water flow that rolls up the sand in front of the pile foundation. The water flow velocity on both sides of the pile foundation will accelerate and form vortices in the rear area of the pile foundation, rolling up the sand in the rear area of the pile foundation. When the vortices in the rear area of the pile foundation periodically generate vortex shedding on both sides behind the pile foundation, the sediment rolled up by the vortices spreads out and is carried away by the ocean current, causing a scouring pit to form around the pile foundation. After a scouring pit forms around the pile foundation of offshore wind power, it will cause the embedment depth of the pile foundation to become shallower, making the bearing capacity, uplift resistance, and torsional resistance of the pile foundation all smaller, posing a serious threat to the safe operation of the wind turbine installed on the pile foundation. Therefore, we design an anti-scouring mechanism for offshore wind power equipment. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: an anti-scouring mechanism for offshore wind power equipment, comprising: a pile foundation, and an anti-scouring structure; the anti-scouring structure is installed on the pile foundation;

[0005] The anti-scouring structure includes: a fixing component, a buffer component, and an anti-loss component;

[0006] The fixing component is installed on the pile foundation, the buffer component is installed on the fixing component, and the anti-loss component is installed on the pile foundation;

[0007] The fixing component includes: a fixing ring, positioning pins, nuts, and screws;

[0008] The fixing ring is installed on the pile foundation, the positioning pins are installed inside the fixing ring, the screws are installed on the fixing ring, and the nuts are installed on the screws.

[0009] Preferably, a groove with the same size as the positioning pins is provided inside the pile foundation.

[0010] Preferably, the buffer component includes: springs, connecting rods, protective plates, ferrules, and fixing frames;

[0011] The connecting rod is installed on the fixing ring, the spring is sleeved on the connecting rod, the fixing frame is installed on the connecting rod, the ferrule is installed on the reinforcement frame, and the protection plate is installed on the reinforcement frame.

[0012] Preferably, a plurality of through holes are provided on the protection plate.

[0013] Preferably, the anti-loss component includes: a bottom plate, a reinforcement frame, a bionic belt, and reinforcement nails;

[0014] The bottom plate is installed on the pile foundation, the fixing frame is installed on the bottom plate, the bionic belt is installed on the bottom plate, and the reinforcement nails are installed at the bottom end of the bottom plate.

[0015] Preferably, locking bolts are provided on the reinforcement frame.

[0016] Beneficial effects

[0017] The present invention provides an anti-scouring mechanism for offshore wind power equipment, which has the following beneficial effects compared with the prior art means:

[0018] By providing an anti-scouring structure, the intensity of the downwelling flow formed by the increase in the water flow pressure in the front area of the pile foundation is effectively reduced under the mutual cooperation of the fixing component, the buffer component and the anti-loss component. At the same time, it has a buffering function, preventing serious damage to the equipment caused by the rigid connection of the equipment, and at the same time taking into account the reinforcement of the seabed and preventing the loss of sediment. Description of the drawings

[0019] Figure 1 It is a front view structural schematic diagram of an anti-scouring mechanism for an offshore wind power equipment of the present invention.

[0020] Figure 2 It is a side view structural schematic diagram of an anti-scouring mechanism for an offshore wind power equipment of the present invention.

[0021] In the figure: 1, pile foundation; 2, fixing ring; 3, positioning nail; 4, nut; 5, screw; 6, spring; 7, connecting rod; 8, protection plate; 9, ferrule; 10, fixing frame; 11, bottom plate; 12, reinforcement frame; 13, bionic belt; 14, reinforcement nail. Specific embodiments

[0022] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1-2 , the present invention provides a technical solution.

[0024] Embodiment 1:

[0025] Please refer to the attached Figure 1-2, in the specific implementation process: an anti-scouring mechanism for offshore wind power equipment, including: a pile foundation 1 and an anti-scouring structure; the anti-scouring structure is installed on the pile foundation 1;

[0026] The anti-scouring structure includes: a fixing component, a buffer component and an anti-loss component;

[0027] The fixing component is installed on the pile foundation 1, the buffer component is installed on the fixing component, and the anti-loss component is installed on the pile foundation 1;

[0028] The fixing component includes: a fixing ring 2, positioning pins 3, nuts 4, and screws 5;

[0029] The fixing ring 2 is installed on the pile foundation 1, the positioning pins 3 are installed inside the fixing ring 2, the screws 5 are installed on the fixing ring 2, and the nuts 4 are installed on the screws 5.

[0030] It should be noted that by positioning with the positioning pins 3, the fixing ring 2 can be more stably sleeved on the pile foundation 1, effectively preventing the fixing ring 2 from moving up and down. At the same time, a pair of fixing rings 2 can be more accurately aligned together. After the preliminary installation of the fixing ring 2, through the cooperation of the screws 5 and nuts 4, the fixing ring 2 is completely fixed on the pile foundation 1, and the installation is simpler and more convenient for underwater operation.

[0031] As a preferred solution, further, a groove with the same size as the positioning pins 3 is provided inside the pile foundation 1.

[0032] It should be noted that the groove with the same size as the positioning pins 3 provided inside the pile foundation 1 makes the installation of the fixing ring 2 more stable.

[0033] As a preferred solution, further, the buffer component includes: a spring 6, a connecting rod 7, a protective plate 8, a ferrule 9, and a fixing bracket 10;

[0034] The connecting rod 7 is installed on the fixing ring 2, the spring 6 is sleeved on the connecting rod 7, the fixing bracket 10 is installed on the connecting rod 7, the ferrule 9 is installed on the reinforcing bracket 12, and the protective plate 8 is installed on the reinforcing bracket 12.

[0035] It should be noted that when the sea current scours the pile foundation 1, usually the fixed protective plate 8 cannot effectively resolve the impact when being impacted, which will cause serious damage to the protective plate 8. Therefore, the cooperation of the spring 6 and the connecting rod 7 is set at the connection of the protective plate 8, which will reduce a part of the impact force. At the same time, a reinforcing bracket 12 is provided at the connection of the protective plate 8, and the reinforcing bracket 12 protects the spring 6 and the connecting rod 7. Under the action of the fixing bracket 10 and the ferrule 9, the erosion of the connecting rod 7 and the spring 6 by seawater can be effectively prevented.

[0036] As a preferred solution, further, a number of through holes are provided on the protective plate 8.

[0037] It should be noted that a number of through holes are provided on the protective plate 8 to facilitate the flow of seawater, which can effectively reduce the flow velocity of the ocean current.

[0038] As a preferred solution, furthermore, the anti-loss component includes: a bottom plate 11, a reinforcement frame 12, a bionic belt 13, and reinforcement nails 14;

[0039] The bottom plate 11 is installed on the pile foundation 1, the fixing frame 10 is installed on the bottom plate 11, the bionic belt 13 is installed on the bottom plate 11, and the reinforcement nails 14 are installed at the bottom end of the bottom plate 11.

[0040] It should be noted that the bottom plate 11 is placed at the contact between the bottom of the pile foundation 1 and the seabed. The reinforcement frame 12 provided on the bottom plate 11 can better connect the bottom plate 11 with the pile foundation 1. At the same time, the reinforcement nails 14 installed at the bottom end of the bottom plate 11 make the installation of the bottom plate 11 more firm. At the same time, the bionic belt 13 provided on the bottom plate 11 can reduce the seabed flow velocity, thereby reducing the kinetic energy of the ocean current, reducing the probability of forming vortices and vortex shedding, further slowing down the scouring of the ocean current on the seabed, reducing the probability of the sediment on the seabed surface being rolled up, and protecting the foundation piles of the wind power equipment.

[0041] As a preferred solution, furthermore, locking bolts are provided on the reinforcement frame 12.

[0042] It should be noted that locking bolts are provided on the reinforcement frame 12, which can fix the fixing frame 10 on the pile foundation 1 more firmly.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-scouring mechanism for offshore wind power equipment, comprising: Pile foundation (1) and anti-scour structure; The anti-scour structure is installed on the pile foundation (1); The anti-scour structure includes: a fixing component, a buffer component and an anti-loss component; The invention is characterized in that the fixing component is installed on the pile foundation (1), the buffer component is installed on the fixing component, and the anti-loss component is installed on the pile foundation (1); The fixing assembly comprises: a fixing ring (2), a positioning pin (3), a nut (4), and a screw (5); The fixing ring (2) is installed on the pile foundation (1), the positioning nail (3) is installed in the fixing ring (2), the screw (5) is installed on the fixing ring (2), and the nut (4) is installed on the screw (5).

2. The anti-scouring mechanism for offshore wind power equipment according to claim 1, characterized in that: A groove having the same size as that of the positioning nail (3) is provided in the pile foundation (1).

3. The anti-scouring mechanism for offshore wind power equipment according to claim 1, characterized in that: The buffer assembly comprises: a spring (6), a connecting rod (7), a protective plate (8), a ferrule (9), and a fixing frame (10); The connecting rod (7) is mounted on the fixing ring (2), the spring (6) is sleeved on the connecting rod (7), the fixing frame (10) is mounted on the connecting rod (7), the ferrule (9) is mounted on the reinforcing frame (12), and the protective plate (8) is mounted on the reinforcing frame (12).

4. The anti-scouring mechanism for offshore wind power equipment according to claim 1, characterized in that: The protective plate (8) is provided with a plurality of through holes.

5. The anti-scouring mechanism for offshore wind power equipment according to claim 1, characterized in that: The anti-loss component comprises: a base plate (11), a reinforcement frame (12), a bionic belt (13), and a reinforcement nail (14); The base plate (11) is installed on the pile foundation (1), the fixing frame (10) is installed on the base plate (11), the bionic belt (13) is installed on the base plate (11), and the reinforcing nails (14) are installed at the bottom end of the base plate (11).

6. The anti-scouring mechanism for offshore wind power equipment according to claim 1, characterized in that: The reinforcement frame (12) is provided with a locking bolt.

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