A cylindrical foundation for offshore wind power

Abstract

The application discloses a cylindrical foundation for offshore wind power, which comprises a suction cylinder, two traction ropes symmetrically arranged on the side of the suction cylinder, anchor heads arranged at the ends of the traction ropes, a connecting cylinder rotatably connected to the upper surface of the suction cylinder, a rotating column movably inserted into the connecting cylinder, an inserting part arranged between the lower end of the rotating column and the inner bottom surface of the connecting cylinder, a first engaging part arranged on the top surface of the suction cylinder outside the connecting cylinder, and a second engaging part arranged on the rotating column and matched with the first engaging part. The foundation is used on an inclined seabed, and is convenient to construct. The foundation can be laid by lowering, and the stability of the foundation can be effectively ensured after suction because the subsidence degree of each position of the suction cylinder is the same.

Description

TECHNICAL FIELD

[0001] The present application relates to a cylindrical foundation of offshore wind power, belonging to the technical field of offshore wind power. BACKGROUND

[0002] As an anchoring and foundation type, the cylindrical foundation plays an important role in offshore wind power. When the foundation is suspended and placed, the sand is sucked through the negative pressure inside the suction cylinder to ensure the stability of the foundation.

[0003] In the presence of a slope on the seabed, the arrangement of the cylindrical foundation will be difficult, and the suction cylinder needs to be sunk deeper to ensure that each edge is fully buried in the sand, especially in the case of multiple suction cylinders sinking simultaneously, it is more difficult, and the suction cylinder near the slope may not be completely sunk, affecting the stability of the foundation arrangement. Therefore, we propose a cylindrical foundation to overcome this problem. SUMMARY

[0004] The purpose of the present application is to provide a cylindrical foundation of offshore wind power to solve the problems existing in the prior art.

[0005] The technical solution of the present application is a cylindrical foundation of offshore wind power, comprising a suction cylinder, two traction ropes symmetrically arranged on the side of the suction cylinder, an anchor head fixedly connected to the end of the traction rope, a connecting cylinder rotatably connected to the upper surface of the suction cylinder, a rotating column movably inserted into the connecting cylinder, a plug-in part arranged between the lower end of the rotating column and the inner bottom surface of the connecting cylinder, the plug-in part being inserted and matched with each other when the rotating column moves downward relative to the connecting cylinder, a first engagement part arranged on the top surface of the suction cylinder outside the connecting cylinder, and a second engagement part arranged on the rotating column and matched with the first engagement part.

[0006] In the aforementioned cylindrical foundation of offshore wind power, the end of the traction rope is fixedly connected with a ball, the outer side wall of the suction cylinder is fixedly connected with a fixed ball, and a ball groove is formed in the inner side of the fixed ball.

[0007] In the aforementioned cylindrical foundation of offshore wind power, the first engagement part comprises side tooth blocks fixedly installed on the upper surface of the suction cylinder and close to the two sides of the connecting cylinder, and the two sides of the connecting cylinder are rotatably connected with the side tooth blocks; the second engagement part comprises a ring groove formed on the outer wall of the rotating column, a sleeve ring rotatably sleeved on the ring groove, two connecting plates fixedly connected to the left and right outer walls of the sleeve ring, an arc-shaped plate fixedly connected to the edge of the connecting plate, a tooth opening formed on the lower surface of the arc-shaped plate, and the front and rear outer walls of the sleeve ring vertically slidingly matched with the outer surface of the connecting cylinder.

[0008] In the aforementioned cylindrical foundation of offshore wind power, the front and rear outer walls of the sleeve ring are fixedly connected with sliding bars, and the front and rear outer walls of the connecting cylinder are fixedly provided with guide bars, and the sliding bars are slidingly inserted between the two guide bars.

[0009] In the foregoing offshore wind power cylindrical foundation, the two side faces of the connecting cylinder are respectively provided with side planes, the side planes vertically extend into rotating shafts, the rotating shafts pass through the side tooth blocks and are rotationally matched with each other.

[0010] In the foregoing offshore wind power cylindrical foundation, the inserting part comprises a clamping column fixedly connected to the lower end of the rotating column, the lower edge of the clamping column is provided with a plurality of clamping grooves arranged in an annular array, and the inner side wall of the bottom face of the connecting cylinder is provided with a plurality of limiting blocks arranged in an annular array.

[0011] In the foregoing offshore wind power cylindrical foundation, the two side faces of the limiting block are provided with bevels, and the top edge of the bevel is provided with a top cut surface.

[0012] In the foregoing offshore wind power cylindrical foundation, the upper edge of the connecting cylinder is provided with an anti-falling edge.

[0013] In the foregoing offshore wind power cylindrical foundation, the suction cylinder further comprises a plurality of partition grid cylinders arranged in the interior thereof, the diameters of the plurality of partition grid cylinders are different from each other, the interior of the innermost partition grid cylinder is provided with an inner column body, the inner column body and the partition grid cylinder are fixedly connected through a fixing frame, the end portion of the fixing frame is fixedly connected to the inner wall of the suction cylinder, and the top portion of the suction cylinder is provided with a suction port close to the edge.

[0014] In the foregoing offshore wind power cylindrical foundation, the top portion of the rotating column is fixedly connected with a receiving table, the top portion of the receiving table is fixedly connected with a plurality of support main frames, a plurality of reinforcing frames are fixedly connected between adjacent support main frames, and the top portions of the plurality of support main frames are jointly fixedly installed with a top table.

[0015] Advantages of the present application: compared with the prior art, the present application has the following advantages:

[0016] 1. The foundation is used for an inclined seabed, and the construction process is relatively convenient, and the stability of the arrangement can be effectively ensured after the suction cylinder is lowered and sucked because the sinking degree of each position of the suction cylinder is the same.

[0017] 2. In the process of lowering the suction cylinder, the positions of the two anchor heads are arranged first, the two anchor head points are at the same height and maintain a certain distance, and when the bottom of the suction cylinder contacts the inclined sand soil, the rotating shaft rotates relative to the side tooth block, and the suction cylinder is in an inclined state, so that the bottom of the suction cylinder can be closely attached to the inclined seabed during lowering, and the stable arrangement of the suction cylinder is facilitated.

[0018] 3. When the bottom of the suction cylinder is close to the inclined seabed, continue to lower the rotating column. After the limiting block is engaged with the inside of the slot, it can prevent the rotating column from rotating relative to the connecting cylinder. At the same time, as the rotating column moves down, the sliding strip slides down between the two guide strips. After the arc plate moves down, the toothed mouth engages with the side toothed block to prevent the rotating shaft from rotating relative to the side toothed block. That is, at this time, the top platform and the suction cylinder maintain a mutual positioning state. As the lowering progresses, it has an automatic locking function after the suction cylinder rotates, making the construction process convenient.

[0019] 4. After the suction cylinder is locked in place, when suction is applied through the suction port, sand is filled into the suction cylinder to ensure its sinking. Since the suction cylinder sinks to adapt to the slope, it can effectively ensure that the sinking of each position of the suction cylinder is uniform and to ensure the stability of the suction cylinder. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the suction cylinder of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a partial structural diagram of the present invention;

[0024] Figure 5 This is a cross-sectional view of the connecting cylinder of the present invention;

[0025] Figure 6 This is a schematic diagram of the insertion post of the present invention;

[0026] Figure 7 This is a schematic diagram of the limiting block of the present invention;

[0027] Figure 8 This is a partial cross-sectional view of the suction cylinder of the present invention;

[0028] Figure 9 This is a cross-sectional view of the fixed ball of the present invention;

[0029] Figure 10 This is a side view diagram of the construction process of the present invention;

[0030] Figure 11 This is a top view of the present invention.

[0031] Reference numerals: 1. Suction cylinder; 2. Inner column; 3. Grating cylinder; 4. Fixing frame; 5. Suction port; 6. Connecting cylinder; 7. Anti-detachment edge; 8. Rotating column; 9. Inserting column; 10. Slot; 11. Limiting block; 12. Beveled surface; 13. Top surface; 14. Guide bar; 15. Sliding bar; 16. Collar; 17. Ring groove; 18. Side toothed block; 19. Rotating shaft; 20. Side plane; 21. Arc plate; 22. Toothed opening; 23. Connecting plate; 25. Fixing ball; 26. Traction rope; 27. Ball groove; 28. Inserting ball; 29. ​​Anchor head; 30. Receiving platform; 31. Main support frame; 32. Reinforcing bracket; 33. Top platform; 34. Sand; 35. Fixing point; 36. Seepage zone. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0033] An embodiment of the present invention: a cylindrical foundation for offshore wind power, such as... Figures 1-11 As shown, the device includes a suction cylinder 1. Two traction ropes 26 are symmetrically arranged on the side wall of the suction cylinder 1, and anchor heads 29 are provided at the ends of the traction ropes 26. A connecting cylinder 6 is rotatably connected to the upper surface of the suction cylinder 1, and a rotating column 8 is movably inserted into the upper surface of the connecting cylinder 6. An insertion part is provided between the lower end of the rotating column 8 and the inner bottom surface of the connecting cylinder 6. When the rotating column 8 moves downward relative to the connecting cylinder 6, the insertion parts engage with each other, so that the positions of the rotating column 8 and the connecting cylinder 6 are relatively fixed. A first engagement part is provided on the upper surface of the suction cylinder 1 outside the connecting cylinder 6, and a second engagement part is provided on the rotating column 8. When the rotating column 8 moves downward relative to the connecting cylinder 6, the first and second engagement parts engage with each other, so that the positions of the connecting cylinder 6 and the suction cylinder 1 are relatively fixed.

[0034] This foundation is designed for sloping seabeds, making construction relatively convenient. Simply lowering the suction cylinder 1 ensures it fits snugly against the seabed surface. After suction, the uniform sinking of the suction cylinder 1 at all locations effectively ensures the stability of the installation.

[0035] like Figure 9 As shown, a locking ball 28 is fixedly connected to the end of the traction rope 26, and a fixing ball 25 is fixedly connected to the outer surface of the suction cylinder 1. A ball groove 27 is provided inside the fixing ball 25. The locking ball 28 is movably locked into the ball groove 27 to ensure that the end of the traction rope 26 can swing.

[0036] like Figure 2 , Figure 3 , Figure 4The first engagement part includes side tooth blocks 18 fixedly installed on the upper surface of the suction cylinder 1 and close to the two sides of the connecting cylinder 6, and the two sides of the connecting cylinder 6 are rotationally connected with the side tooth blocks 18. The second engagement part includes a ring groove 17 formed on the column body of the rotating column 8, a sleeve ring 16 rotationally sleeved on the ring groove 17, and a connecting plate 23 fixedly connected to the left and right outer walls of the sleeve ring 16. The edge of each connecting plate 23 is fixedly connected with an arc-shaped plate 21, and the lower surface of the arc-shaped plate 21 is provided with a toothed opening 22.

[0037] The outer wall of the sleeve ring 16 is vertically slidably connected with the outer wall of the connecting cylinder 6, the front and rear outer walls of the sleeve ring 16 are fixedly connected with two sliding bars 15, and the front and rear outer walls of the connecting cylinder 6 are fixedly provided with guide bars 14. Each sliding bar 15 is slidably inserted between the two guide bars 14, which limits the sleeve ring 16 and prevents the sleeve ring 16 from rotating synchronously with the rotating column 8.

[0038] As shown in Figure 5 , the two side surfaces of the connecting cylinder 6 are respectively provided with side planes 20, the side planes 20 vertically extend out of rotating shafts 19, and the rotating shafts 19 pass through the side tooth blocks 18 and rotationally cooperate with each other.

[0039] As shown in Figure 5 , Figure 6 , Figure 7 , the insertion part includes a clamping column 9 fixedly connected to the lower end of the rotating column 8, a plurality of clamping grooves 10 arranged in a ring array are formed in the lower edge of the clamping column 9, a plurality of limiting blocks 11 arranged in a ring array are arranged on the inner wall of the bottom end of the connecting cylinder 6, the two side surfaces of the limiting blocks 11 are provided with inclined surfaces 12, and the top edge of the inclined surface 12 is provided with a top surface 13. When the clamping column 9 moves downward, the lower edge of the clamping groove 10 can slide along the inclined surface 12, the limiting block 11 is clamped into the inner side of the clamping groove 10 when the clamping column 9 moves downward, the upper edge of the connecting cylinder 6 is provided with an anti-disengagement edge 7, and the anti-disengagement edge 7 ensures that the rotating column 8 can move up and down in the connecting cylinder 6 by a distance, but avoids that the connecting cylinder 6 and the rotating column 8 are completely separated.

[0040] The number of clamping grooves 10 and limiting blocks 11 is respectively set to nine, which ensures that the spacing between adjacent limiting blocks 11 is small, and the limiting block 11 can be clamped into the inner side of the clamping groove 10 when the clamping column 9 moves downward.

[0041] As shown in Figure 2 , Figure 8As shown, the suction cylinder 1 further comprises a plurality of baffle cylinders 3 arranged inside the suction cylinder 1, the diameters of the plurality of baffle cylinders 3 are different, the innermost baffle cylinder 3 is provided with an inner column 2, the inner column 2 is fixedly connected with the baffle cylinder 3 through a fixing frame 4, and the end of the fixing frame 4 is fixedly connected to the inner wall of the suction cylinder 1. The upper surface of the suction cylinder 1 is provided with a suction port 5 near the edge for suction, so that a negative pressure is formed in the suction cylinder 1 to ensure the sinking of the suction cylinder 1. The inner column 2 and the baffle cylinder 3 can play a filtering role to prevent large stones from blocking the suction port 5.

[0042] As shown in Figure 1 , the upper end of the rotating column 8 is fixedly connected with a receiving table 30, the upper surface of the receiving table 30 is fixedly connected with a plurality of support main frames 31, a plurality of reinforcing frames 32 are fixedly connected between adjacent support main frames 31 to stabilize the support main frames 31, and the upper ends of the plurality of support main frames 31 are jointly fixedly installed with a top table 33 for installing wind power equipment.

[0043] In specific use, in the process of lowering the suction cylinder 1, the positions of the two anchor heads 29 are arranged first, the positions of the two anchor heads 29 are at the same height, as shown in Figure 10 , Figure 11 , the positions of the fixed points 35, and a certain distance is maintained. When the suction cylinder 1 is lowered, due to the pulling action of the two traction ropes 26, the suction cylinder 1 rotates relative to the rotating column 8 until it reaches equilibrium. After that, when the bottom of the suction cylinder 1 contacts the inclined sand soil 34, the rotating shaft 19 rotates relative to the side tooth block 18, and the suction cylinder 1 will be in an inclined state, which can ensure that the bottom of the suction cylinder 1 closely adheres to the inclined seabed during lowering, which is beneficial to the stable arrangement of the suction cylinder 1. When the bottom of the suction cylinder 1 closely adheres to the inclined seabed, the limiting block 11 is clamped into the inner side of the clamping groove 10 to prevent the rotating column 8 from rotating relative to the connecting cylinder 6. At the same time, when the rotating column 8 moves downward, the sliding bar 15 slides downward between the two side guide bars 14, the arc-shaped plate 21 moves downward, the tooth opening 22 engages with the side tooth block 18 to prevent the rotating shaft 19 from rotating relative to the side tooth block 18. At this time, the top table 33 and the suction cylinder 1 maintain a state of mutual positioning. With the lowering, the suction cylinder 1 has an automatic locking function after rotating, which is convenient for construction. After the position of the suction cylinder 1 is locked, when the suction port 5 is suctioned, a seepage zone 36 is formed below, the suction cylinder 1 is filled with sand soil 34 to ensure the sinking of the suction cylinder 1. Since the suction cylinder 1 sinks along the inclined surface of the slope, it can effectively ensure that all positions of the suction cylinder 1 sink uniformly to ensure the stability of the suction cylinder 1.

Claims

1. A cylindrical foundation for offshore wind power, characterized in that: It includes a suction cylinder (1), two traction ropes (26) are symmetrically arranged on the side of the suction cylinder (1), and an anchor head (29) is provided at the end of the traction rope (26). A connecting cylinder (6) is rotatably connected to the upper surface of the suction cylinder (1). A rotating column (8) is movably inserted in the connecting cylinder (6). An insertion part is provided between the lower end of the rotating column (8) and the inner bottom surface of the connecting cylinder (6). When the rotating column (8) moves down relative to the connecting cylinder (6), the insertion parts are inserted and engaged with each other. A first meshing part is provided on the top surface of the suction cylinder (1) outside the connecting cylinder (6), and a second meshing part is provided on the rotating column (8) to engage with the first meshing part. The first meshing part includes side tooth blocks (18) fixedly installed on the upper surface of the suction cylinder (1) and close to both sides of the connecting cylinder (6). The two sides of the connecting cylinder (6) are rotatably connected to the side tooth blocks (18). The second meshing part includes an annular groove (17) provided on the outer wall of the rotating column (8). A collar (16) is rotatably sleeved on the annular groove (17). A connecting plate (23) is fixedly connected to the left and right outer walls of the collar (16). An arc plate (21) is fixedly connected to the edge of the connecting plate (23). A toothed opening (22) is opened on the lower surface of the arc plate (21). The front and rear outer walls of the collar (16) slide vertically with the outer surface of the connecting cylinder (6). The connecting cylinder (6) has side planes (20) on both sides, and a rotating shaft (19) extends vertically from the side planes (20). The rotating shaft (19) passes through the side tooth block (18) and rotates with it.

2. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The end of the traction rope (26) is fixedly connected to a locking ball (28), and the outer wall of the suction cylinder (1) is fixedly connected to a fixing ball (25). The inner side of the fixing ball (25) is provided with a ball groove (27), and the locking ball (28) is movably locked into the ball groove (27).

3. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The front and rear outer walls of the collar (16) are fixedly connected with sliding strips (15), and the front and rear outer walls of the connecting cylinder (6) are fixedly provided with guide strips (14). The sliding strips (15) are slidably inserted between the two guide strips (14).

4. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The insertion part includes a snap-in post (9) fixedly connected to the lower end of the rotating post (8). The lower edge of the snap-in post (9) is provided with a number of snap-in slots (10) arranged in a ring array. The inner side wall of the bottom surface of the connecting cylinder (6) is provided with a number of limit blocks (11) arranged in a ring array.

5. The cylindrical foundation for offshore wind power according to claim 4, characterized in that: The limiting block (11) has oblique cut surfaces (12) on both sides, and a top cut surface (13) is provided on the top edge of the oblique cut surface (12).

6. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The upper side of the connecting cylinder (6) is provided with an anti-detachment edge (7).

7. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The suction cylinder (1) also includes several grid cylinders (3) inside it. The diameters of the several grid cylinders (3) are different. The innermost grid cylinder (3) has an inner column (2) inside it. The inner column (2) and the grid cylinder (3) are fixedly connected by a fixing frame (4). The end of the fixing frame (4) is fixedly connected to the inner wall of the suction cylinder (1). The suction cylinder (1) has a suction port (5) near the edge at the top.

8. The cylindrical foundation for offshore wind power according to claim 1, characterized in that: The top of the rotating column (8) is fixedly connected to a support platform (30), and the top of the support platform (30) is fixedly connected to several main support frames (31). Several reinforcing brackets (32) are fixedly connected between adjacent main support frames (31), and a top platform (33) is fixedly installed on the top of several main support frames (31).

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