Offshore floating wind power generation cable

Abstract

The invention discloses an offshore floating wind power generation cable, and relates to the technical field of wind power generation cables, the offshore floating wind power generation cable comprises a conductor, a shielding layer is sleeved outside the conductor, an insulating layer is arranged on the outer side of the shielding layer, the offshore floating wind power generation cable further comprises a waterproof layer and a protective sleeve, and a warning buoy is arranged in the waterproof layer. The warning buoy is fixedly connected to the waterproof layer through a string, at least two warning boxes are fixedly connected to the circumferential wall of the waterproof layer, the bottom of each warning box is rotationally connected with a rotating shaft, and at least two metal balls are fixedly connected to the side wall of each rotating shaft. The purpose of dispersing fish schools is achieved, the impact force of the fish schools on the conductor when the fish schools pass through the waterproof layer is reduced, damage to the connecting portion of the conductor and the wind power generation equipment is avoided, and when a diver makes contact with the protective sleeve, sound generated by the metal balls and the metal plates can warn the diver and remind the diver to be away from the protective sleeve.

Description

Technical Field

[0001] This invention relates to the field of wind power cable technology, and more specifically, to a floating offshore wind power cable. Background Technology

[0002] Cables are fundamental materials for transmitting information and energy, and the vast majority of cables are laid in the external environment, thus subjecting themselves to considerable wind and rain. With the development of wind power technology, offshore wind power technology has received increasing attention. When transmitting electricity from offshore wind turbines, the connecting cables are generally submerged in seawater. However, when existing floating offshore wind power cables are submerged, schools of fish feed on the plankton around and attached to the cables. The movement of these fish impacts the cables, causing them to sway. Since the impact force of the fish's movement is greater than that of the ocean currents... The impact force is too great, and the fish nearby cannot be dispersed. When the cable is repeatedly impacted by fish, the swaying force of the cable will increase. This will easily damage the connection between the cable and the wind power equipment. In the event of a major accident with damage and cracks in the cable, the location of the damage and cracks can only be discovered when workers dive into the sea to inspect the cable. If the damage is not discovered in time, the extent of the damage will increase as the time of damage increases. This will not only affect the cable's power transmission, but also pose a threat to marine life. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a floating offshore wind power generation cable.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A floating offshore wind power cable includes a conductor, a shielding layer covering the outside of the conductor, an insulation layer covering the outside of the shielding layer, and also includes a waterproof layer and a protective sleeve.

[0006] Warning floats are installed inside the waterproof layer and are fixed to the waterproof layer by thin ropes. At least two warning boxes are fixedly connected to the circumferential wall of the waterproof layer. The bottom of the warning box is rotatably connected to a pivot, and at least two metal balls are fixedly connected to the side wall of the pivot. The bottom of the warning box is rotatably connected to a vertically set metal plate, and the metal balls and the metal plate cooperate with each other.

[0007] The protective sleeve is fitted over the outside of the waterproof layer and is formed by at least two arc-shaped plates arranged in a ring. At least two strip-shaped through holes are opened on the arc-shaped plates. A push rod is fixedly connected to the arc-shaped plates, and the end of the push rod penetrates the side wall of the warning box and cooperates with the rotating shaft.

[0008] Preferably, the waterproof layer has at least two cavities, and the cavities are staggered. The warning float is located in the cavity, and the end of the thin rope away from the warning float is fixedly connected to the bottom of the cavity.

[0009] Preferably, a gear is fixedly connected to the rotating shaft, and a rack meshes with both sides of the gear. The rack is slidably connected to the bottom of the warning box, and a connecting plate is fixedly connected to the end of the rack away from the gear. One end of the push rod is fixedly connected to the connecting plate.

[0010] Preferably, a sliding plate is fixedly connected to the side wall of the rack, a groove is provided at the bottom of the warning box, the sliding plate is slidably connected in the groove, a spring is fixedly connected to the side wall of the sliding plate, and the end of the spring away from the sliding plate is fixedly connected to the inner side wall of the warning box.

[0011] Preferably, the bottom of the warning box has a groove, and the lower end of the metal plate is rotatably connected to the side wall of the groove by a torsion spring.

[0012] Preferably, a circular block is rotatably connected to the top of the warning box, a connecting rod is fixedly connected to the circular block, and at least two inclined unblocking plates are fixedly connected to the connecting rod. The end of the unblocking plate away from the connecting rod extends into the strip-shaped through hole, and the cross-section of the unblocking plate is triangular.

[0013] Preferably, a rotating shaft is fixedly connected to the circular block, and the rotating shaft is rotatably connected to the inner wall of the warning box. At least two baffles are fixedly connected to the circumferential wall of the circular block, and the baffles are arranged in an arc shape and cooperate with the metal ball.

[0014] Preferably, a horizontally arranged stop bar is fixedly connected to the metal ball, and the end of the stop bar away from the metal ball is fixedly connected to the circumferential wall of the rotating shaft, with one of the stop bars connected to the lower end of one of the baffles.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this invention, the push rod is pushed into the warning box by the arc plate, which in turn drives the rack to move towards the gear. Due to the meshing of the rack and gear, the gear rotates, causing the metal ball to rotate. The metal ball contacts the metal plate and pushes the metal plate to one side. Through the pushing of the metal ball, the upper end of the metal plate rotates downward. When the metal plate is released from the pushing of the metal ball, the end of the metal plate away from the torsion spring rotates upward by the rotational force of the torsion spring and collides with the metal ball rotating in the opposite direction. The collision sound generated by the metal ball and the metal plate scare away the fish, thereby dispersing the fish and reducing the impact force of the fish on the conductor when passing through the waterproof layer, thus avoiding damage to the connection between the conductor and the wind power generation equipment. When the diver comes into contact with the protective cover, the sound emitted by the metal ball and the metal plate can warn the diver and prompt the diver to stay away from the protective cover.

[0017] 2. In this invention, seawater penetrates into the cavity through the damaged and cracked parts of the waterproof layer. The warning float, under the pressure and buoyancy of the seawater seeping into the cavity, floats out of the cavity through the damaged and cracked parts of the waterproof layer and floats upward to the sea surface through the strip-shaped through hole. This makes it easy for staff to discover and repair the damaged and cracked parts of the waterproof layer in time, avoiding the need for staff to dive for inspection and bringing convenience to the staff. Attached Figure Description

[0018] Figure 1 This invention provides a schematic diagram of the overall structure of a floating offshore wind power generation cable;

[0019] Figure 2 This invention provides a partial structural diagram of the conductor and waterproof layer in a floating offshore wind power cable;

[0020] Figure 3 This invention provides a schematic diagram of the connection structure between the arc-shaped plate and the warning box in a floating offshore wind power cable;

[0021] Figure 4 This invention provides a schematic diagram of the connection structure between the arc-shaped plate and the dredging plate in a floating offshore wind power cable;

[0022] Figure 5 This invention provides a schematic diagram of the internal structure of a warning box in a floating offshore wind power cable;

[0023] Figure 6 This invention provides a schematic diagram of the structure of a metal plate in a floating offshore wind power cable;

[0024] Figure 7 This invention provides a schematic diagram of the connection structure between the warning box and the drainage plate in a floating offshore wind power cable.

[0025] 1. Conductor; 2. Shielding layer; 3. Insulation layer; 4. Waterproof layer; 5. Protective sleeve; 6. Warning float; 7. Thin rope; 8. Warning box; 9. Arc plate; 10. Strip-shaped through hole; 11. Push rod; 12. Rotating shaft; 13. Metal ball; 14. Metal plate; 15. Cavity; 16. Gear; 17. Rack; 18. Connecting plate; 19. Sliding plate; 20. Slide groove; 21. Spring; 22. Groove; 23. Torsion spring; 24. Circular block; 25. Connecting rod; 26. Stop bar; 27. Unblocking plate; 28. Rotating shaft; 29. ​​Baffle. Detailed Implementation

[0026] Reference Figures 1 to 7 .

[0027] Example 1 further illustrates the offshore floating wind power generation cable proposed in this invention.

[0028] A floating offshore wind power cable includes a conductor 1, a shielding layer 2 is provided on the outside of the conductor 1, an insulation layer 3 is provided on the outside of the shielding layer 2, and also includes a waterproof layer 4 and a protective sleeve 5.

[0029] A warning float 6 is installed inside the waterproof layer 4. The warning float 6 is fixedly connected to the waterproof layer 4 by a thin rope 7. At least two warning boxes 8 are fixedly connected to the circumferential wall of the waterproof layer 4. A rotating shaft 12 is rotatably connected to the bottom of the warning box 8. At least two metal balls 13 are fixedly connected to the side wall of the rotating shaft 12. A vertically arranged metal plate 14 is rotatably connected to the bottom of the warning box 8. The metal balls 13 and the metal plate 14 cooperate with each other. The metal plate 14 and the metal balls 13 are made of corrosion-resistant metal, which can prevent the metal plate 14 and the metal balls 13 from contacting seawater and causing corrosion, thereby improving the service life of the metal plate 14 and the metal balls 13.

[0030] The protective sleeve 5 is fitted on the outside of the waterproof layer 4, and the protective sleeve 5 is formed by at least two arc-shaped plates 9 arranged in a ring. At least two strip-shaped through holes 10 are opened on the arc-shaped plates 9. A push rod 11 is fixedly connected to the arc-shaped plates 9. The end of the push rod 11 penetrates the side wall of the warning box 8 and cooperates with the rotating shaft 12. The strip-shaped through holes 10 not only facilitate the passage of the warning float 6, but also facilitate the flow of seawater and reduce the impact of waves on the protective sleeve 5.

[0031] The waterproof layer 4 has at least two cavities 15, and the cavities 15 are staggered. The warning float 6 is located in the cavity 15, and the end of the thin rope 7 away from the warning float 6 is fixedly connected to the bottom of the cavity 15. The thin rope 7 is made of carbon fiber to improve the wear resistance of the thin rope 7. The length of the thin rope 7 is greater than the distance between the waterproof layer 4 and the sea surface.

[0032] A gear 16 is fixedly connected to the rotating shaft 12. A rack 17 meshes with both sides of the gear 16. The rack 17 is slidably connected to the bottom of the warning box 8. A connecting plate 18 is fixedly connected to the end of the rack 17 away from the gear 16. One end of the push rod 11 is fixedly connected to the connecting plate 18. A through hole is opened on the side wall of the warning box 8 for the push rod 11 to pass through. A sealing gasket is provided at the contact part between the push rod 11 and the through hole to increase the sealing between the push rod 11 and the warning box 8 and prevent seawater from entering the warning box 8.

[0033] A sliding plate 19 is fixedly connected to the side wall of the rack 17. A groove 20 is provided at the bottom of the warning box 8. The sliding plate 19 is slidably connected in the groove 20. A spring 21 is fixedly connected to the side wall of the sliding plate 19. One end of the spring 21 away from the sliding plate 19 is fixedly connected to the inner side wall of the warning box 8.

[0034] The bottom of the warning box 8 has a groove 22. The lower end of the metal plate 14 is rotatably connected to the side wall of the groove 22 by a torsion spring 23. A rotating shaft is fixedly connected to the metal plate 14. The torsion spring 23 is sleeved on the rotating shaft, and one end of the torsion spring 23 is fixed on the rotating shaft, while the other end of the torsion spring 23 is fixed on the side wall of the groove 22.

[0035] Working principle: Conductor 1 is connected to the electrical equipment in the offshore floating wind power generation equipment using existing technology. The middle part of the waterproof layer 4 and the protective sleeve 5 is located in seawater. When marine life, such as fish, comes into contact with the protective sleeve 5 and pushes the arc-shaped plate 9 towards the waterproof layer 4, the arc-shaped plate 9 pushes the push rod 11 into the warning box 8, and drives the rack 17 towards the gear 16. Due to the meshing of the rack 17 and the gear 16, the gear 16 is driven to rotate, which drives the metal ball 13 to rotate. The metal ball 13 comes into contact with the metal plate 14 and pushes the metal plate 14 to one side. Through the pushing of the metal ball 13, the upper end of the metal plate 14 rotates downward. When the metal plate 14 is released from the pushing of the metal ball 13, the torsion spring 23... The rotational force causes the end of the metal plate 14 away from the torsion spring 23 to rotate upwards and collide with the metal ball 13 rotating in the opposite direction. The collision sound generated by the metal ball 13 and the metal plate 14 scares away the fish, thus dispersing the fish and reducing the impact of the fish on the waterproof layer 4 when passing through it. When the diver comes into contact with the protective sleeve 5, the sound emitted by the metal ball 13 and the metal plate 14 can warn the diver to stay away from the protective sleeve 5. When the arc plate 9 is freed from the push of the fish, the elastic force of the spring 21 pulls the connecting plate 18 away from the gear 16, which drives the push rod 11 and the arc plate 9 to move away from the warning box 8, so as to facilitate the restoration of the positions of the arc plate 9, the push rod 11, the connecting plate 18, and the rack 17.

[0036] When the waterproof layer 4 is damaged or cracked, seawater penetrates into the cavity 15 through the damaged or cracked areas. The warning buoy 6, under the pressure and buoyancy of the seawater that seeps into the cavity 15, floats out of the cavity 15 through the damaged or cracked areas of the waterproof layer 4 and floats upward to the sea surface through the strip-shaped through-hole 10. This allows staff to discover the damage or crack in the waterproof layer 4 in a timely manner and repair it, avoiding the need for staff to dive for inspection and providing convenience for staff.

[0037] Example 2

[0038] The following technical features are added based on Embodiment 1:

[0039] A floating offshore wind power cable has a circular block 24 rotatably connected to the top of a warning box 8. A connecting rod 25 is fixedly connected to the circular block 24. At least two inclined unblocking plates 27 are fixedly connected to the connecting rod 25. The end of the unblocking plate 27 away from the connecting rod 25 extends into the strip-shaped through hole 10. The cross-section of the unblocking plate 27 is triangular. When the unblocking plate 27 rotates, the small end of the unblocking plate 27 can cut some of the marine plants attached to the strip-shaped through hole 10, preventing the marine plants from getting tangled on the arc-shaped plate 9.

[0040] A rotating shaft 28 is fixedly connected to the circular block 24. The rotating shaft 28 is rotatably connected to the inner wall of the warning box 8. At least two baffles 29 are fixedly connected to the circumferential wall of the circular block 24. The baffles 29 are arranged in an arc shape. The baffles 29 cooperate with the metal ball 13. The baffles 29 are opposite to the drainage plate 27. A rectangular through hole is opened at the top of the warning box 8 for the circular block 24 to pass through. A sealing gasket is provided at the contact part between the circular block 24 and the rectangular through hole to increase the sealing between the circular block 24 and the rectangular through hole and prevent seawater from entering the warning box 8.

[0041] A horizontally arranged stop bar 26 is fixedly connected to the metal ball 13. The end of the stop bar 26 away from the metal ball 13 is fixedly connected to the circumferential wall of the rotating shaft 12. One of the stop bars 26 is connected to the lower end of one of the baffles 29.

[0042] Working principle: When push rod 11 drives gear 16 to rotate via rack 17, it drives shaft 12, stop rod 26, and metal ball 13 to rotate. When stop rod 26 engages with baffle 29, the baffle 29 is pushed to one side through the cooperation of stop rod 26 and baffle 29, causing circular block 24, connecting rod 25, and unblocking plate 27 to rotate. During the rotation of unblocking plate 27 to one side, it pushes the marine plants covering the strip-shaped through hole 10 and wrapped around the arc-shaped plate 9 to one side, making it easier to clean the marine plants on the arc-shaped plate 9. The design ensures the unobstructed flow of the strip-shaped through hole 10, facilitating the passage of the warning float 6 and the flow of seawater. It also effectively prevents marine plants from tangling on the waterproof layer 4 and avoids damage to the waterproof layer 4. When the small end of the unblocking plate 27 contacts the side wall of its opposite strip-shaped through hole 10, the end of the rack 17 away from the push rod 11 contacts the inner wall of the warning box 8, restricting the rack 17 from continuing to drive the gear 16, the rotating shaft 12, and the circular block 24 to continue rotating, while controlling the unblocking plate 27 to continue rotating.

[0043] When the push rod 11 and rack 17 move away from gear 16 due to the elastic force of spring 21, the meshing of rack 17 and gear 16 drives gear 16, shaft 12 and stop rod 26 to rotate in the opposite direction. The stop rod 26, through its cooperation with baffle 29, pushes baffle 29 in the opposite direction, driving circular block 24, connecting rod 25 and unblocking plate 27 to rotate in the opposite direction. When rack 17 returns to its original position, the large end of unblocking plate 27 contacts the side wall of strip-shaped through hole 10, thus restoring the position of unblocking plate 27.

[0044] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sea floating wind power cable comprising a conductor (1), the outer side of the conductor (1) is provided with a shielding layer (2), the outer side of the shielding layer (2) is provided with an insulation layer (3), characterized in that, Also includes: Waterproof layer (4) and protective sleeve (5); A warning float (6) is installed inside the waterproof layer (4). The warning float (6) is fixedly connected to the waterproof layer (4) by a thin rope (7). At least two warning boxes (8) are fixedly connected to the circumferential wall of the waterproof layer (4). A rotating shaft (12) is rotatably connected to the bottom of the warning box (8). At least two metal balls (13) are fixedly connected to the side wall of the rotating shaft (12). A vertically arranged metal plate (14) is rotatably connected to the bottom of the warning box (8). The metal balls (13) and the metal plate (14) cooperate with each other. The protective sleeve (5) is fitted on the outside of the waterproof layer (4), and the protective sleeve (5) is formed by at least two arc-shaped plates (9) arranged in a ring. At least two strip-shaped through holes (10) are opened on the arc-shaped plates (9), and a push rod (11) is fixedly connected to the arc-shaped plates (9). The end of the push rod (11) penetrates the side wall of the warning box (8) and cooperates with the rotating shaft (12).

2. A marine floating wind power cable according to claim 1, characterised in that, The waterproof layer (4) has at least two cavities (15) inside, and multiple cavities (15) are distributed in an alternating manner. The warning float (6) is located inside the cavity (15), and the end of the thin rope (7) away from the warning float (6) is fixedly connected to the bottom of the cavity (15).

3. A marine floating wind power cable according to claim 2, characterised in that, A gear (16) is fixedly connected to the rotating shaft (12). A rack (17) meshes with both sides of the gear (16). The rack (17) is slidably connected to the bottom of the warning box (8). A connecting plate (18) is fixedly connected to one end of the rack (17) away from the gear (16). One end of the push rod (11) is fixedly connected to the connecting plate (18).

4. A floating offshore wind power generation cable according to claim 3, characterized in that, A sliding plate (19) is fixedly connected to the side wall of the rack (17), and a groove (20) is provided at the bottom of the warning box (8). The sliding plate (19) is slidably connected in the groove (20), and a spring (21) is fixedly connected to the side wall of the sliding plate (19). The end of the spring (21) away from the sliding plate (19) is fixedly connected to the inner side wall of the warning box (8).

5. A floating offshore wind power cable according to claim 4, characterized in that, The bottom of the warning box (8) has a groove (22), and the lower end of the metal plate (14) is rotatably connected to the side wall of the groove (22) by a torsion spring (23).

6. A floating offshore wind power cable according to claim 5, characterized in that, A circular block (24) is rotatably connected to the top of the warning box (8). A connecting rod (25) is fixedly connected to the circular block (24). At least two inclined unblocking plates (27) are fixedly connected to the connecting rod (25). The end of the unblocking plate (27) away from the connecting rod (25) extends into the strip-shaped through hole (10), and the cross-section of the unblocking plate (27) is triangular.

7. A floating offshore wind power cable according to claim 6, characterized in that, A rotating shaft (28) is fixedly connected to the circular block (24). The rotating shaft (28) is rotatably connected to the inner wall of the warning box (8). At least two baffles (29) are fixedly connected to the circumferential wall of the circular block (24). The baffles (29) are arranged in an arc shape and cooperate with the metal ball (13).

8. A floating offshore wind power cable according to claim 7, characterized in that, A horizontally arranged stop bar (26) is fixedly connected to the metal ball (13). The end of the stop bar (26) away from the metal ball (13) is fixedly connected to the circumferential wall of the rotating shaft (12). One of the stop bars (26) is connected to the lower end of one of the baffles (29).

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