Submarine cable landing auxiliary device

Abstract

The invention discloses a submarine cable landing auxiliary device. The submarine cable landing auxiliary device comprises a foundation; the lower end of the support is fixedly arranged at the upper end of the foundation, the upper end of the support is provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are arranged on the two sides of the support in the horizontal direction respectively; the upper end of the open pulley is connected with the first connecting part; one end of the traction rope penetrates through the open pulley and extends downwards, and one end of the traction rope is connected with the end part of a submarine cable; and the working ship is provided with a winch, and the other end of the traction rope is connected with the winch. Through the application of the submarine cable landing auxiliary device, the submarine cable landing auxiliary device suitable for submarine cable landing construction is provided, the submarine cable landing auxiliary device is particularly suitable for rapidly, stably and safely landing a submarine cable to a pile foundation of an offshore wind turbine, the construction efficiency of an offshore wind power plant can be improved, and the construction cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable landing, and particularly to a submarine cable landing auxiliary device. Background Art

[0002] During the construction of an offshore wind farm, submarine cable construction usually starts after the complete hoisting of offshore wind turbine units. The construction speed of submarine cables in the wind farm area is generally 1 to 2 days to complete one cable. However, even in the case of a good weather window period, the piling of wind turbines still takes 1 to 2 days or even longer, and the hoisting of wind turbine units takes up to 3 days. Moreover, the whole process of this operation is greatly affected by the wind speed, resulting in a relatively tight construction period. Considering the construction period, the offshore wind farm often delivers the pile foundation in advance. However, due to the influence of the assembly efficiency of wind turbine units, the supply is often less than the demand, resulting in phenomena such as delays in the construction period of the offshore wind farm, making the subsequent construction in a passive state. Affected by this, the submarine cable construction ship has to stop working and wait, wasting the precious window period.

[0003] At present, the submarine cable construction party has considered pre-landing the submarine cable to the upper end of the wind turbine pile foundation and making temporary fixation after the delivery of the pile foundation, so that the submarine cable construction ship does not have to stop and wait in place, thereby improving the construction efficiency. However, due to the large self-weight of the submarine cable, when landing the submarine cable from the seabed at the construction ship to the platform at the upper end of the relatively high wind turbine pile foundation, there is often a lack of safe and stable construction means. Summary of the Invention

[0004] In view of this, to solve the above problems, the object of the present invention is to provide a submarine cable landing auxiliary device, including:

[0005] A foundation;

[0006] A bracket, the lower end of the bracket is fixedly arranged on the upper end of the foundation, and the upper end of the bracket has a first connection part and a second connection part, and the first connection part and the second connection part are respectively arranged on both sides of the bracket along the horizontal direction;

[0007] An open pulley, the upper end of the open pulley is connected to the first connection part;

[0008] A towing rope, one end of the towing rope passes through the open pulley and extends downward, and one end of the towing rope is connected to the end of a submarine cable;

[0009] A working ship, a winch is arranged on the working ship, and the other end of the towing rope is connected to the winch.

[0010] In another preferred embodiment, it further includes: at least one guy rope, one end of the guy rope is connected to the foundation, and the other end of the guy rope is connected to the second connection part.

[0011] In another preferred embodiment, the bracket includes: a first frame body and a second frame body, the first frame body and the second frame body are connected in sequence from top to bottom, the second frame body is disposed on the base, and the first connecting portion and the second connecting portion are both formed on the first frame body.

[0012] In another preferred embodiment, the first frame body includes: a support column, a first connecting plate and a second connecting plate, the support column is disposed at the upper end of the second frame body, the first connecting plate and the second connecting plate are respectively fixedly connected to two sides of the upper end of the support column, the first connecting portion is formed on the first connecting plate, and the second connecting portion is formed on the second connecting plate.

[0013] In another preferred embodiment, the first frame body further includes: a reinforcing plate, the reinforcing plate is disposed at the upper end of the support column, and the upper edges of the first connecting plate and the second connecting plate are both fixedly connected to the lower surface of the reinforcing plate.

[0014] In another preferred embodiment, the lower end of the second frame body has two mounting feet, and the mounting feet are fixed to the base by fasteners.

[0015] In another preferred embodiment, the opening pulley includes: a hook, a plate frame and a pulley body, the hook is disposed at the upper end of the plate frame, the hook is connected to the first connecting portion, the pulley body is disposed inside the plate frame, and the towing rope is disposed passing through the pulley body.

[0016] In another preferred embodiment, a flange structure is formed on the base, and the lower end of the bracket and the guy wire are both connected to the flange structure.

[0017] In another preferred embodiment, a guiding tube is disposed on the outer side of the base along the horizontal direction, and one end of the towing rope is disposed passing through the guiding tube from top to bottom.

[0018] In another preferred embodiment, the guiding tube is arranged in a J shape.

[0019] Due to the adoption of the above technical solutions, the present invention has the following positive effects compared with the prior art:

[0020] By applying the present invention, a submarine cable landing auxiliary device suitable for submarine cable landing construction is provided, which is particularly suitable for quickly, stably and safely landing a submarine cable to the pile foundation of an offshore wind turbine, and can improve the construction efficiency of an offshore wind farm and save construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The first overall schematic diagram of an underwater cable landing auxiliary device of the present invention;

[0022] Figure 2 The second overall schematic diagram of an underwater cable landing auxiliary device of the present invention;

[0023] Figure 3 The partial schematic diagram of an underwater cable landing auxiliary device of the present invention.

[0024] In the drawings:

[0025] 1. Foundation; 2. Bracket; 3. Open pulley; 4. Towing rope; 5. Guy wire; 6. First frame; 7. Second frame; 8. Support column; 9. First connecting plate; 10. Second connecting plate; 11. Reinforcing plate; 12. Mounting foot; 13. Hook; 14. Plate rack; 15. Flange structure; 16. Guide pipe; 17. Connector; 18. Sleeve cage. Specific embodiments

[0026] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "horizontal", "vertical", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0028] It should be particularly noted that the "horizontal" and "vertical" in the present invention are used to illustrate the approximate positional relationships, rather than strict "horizontal plane" or "vertical plane".

[0029] Such as Figures 1 to 3As shown in the figure, a submarine cable landing assistance device of a preferred embodiment is shown, including: a foundation 1; a bracket 2, the lower end of the bracket 2 is fixedly arranged on the upper end of the foundation 1, the upper end of the bracket 2 has a first connection part and a second connection part, and the first connection part and the second connection part are respectively arranged on both sides of the bracket 2 along the horizontal direction; an opening pulley 3, the upper end of the opening pulley 3 is connected to the first connection part; a towing rope 4, one end of the towing rope 4 passes through the opening pulley 3 and extends downward, and one end of the towing rope 4 is connected to the end of a submarine cable; a working boat, a winch is arranged on the working boat, and the other end of the towing rope 4 is connected to the winch. Further, the foundation 1 is preferably a wind turbine pile foundation used in an offshore wind farm. During actual operation, the working boat for laying the submarine cable is kept at a certain distance from the foundation 1 on the sea surface, and the bracket 2, the opening pulley 3, and the towing rope 4 are pre-arranged on the upper end of the foundation 1, and one end of the towing rope 4 is connected to the end of the submarine cable. At this time, when the winch on the working boat is started, the other end of the towing rope 4 will be continuously wound around the winch, so that under the guidance of the opening pulley 3, the towing rope 4 drives the submarine cable to continuously move from the seabed towards the upper end of the foundation 1 until the other end of the submarine cable has enough length to be reserved at the upper end of the foundation 1.

[0030] Further, as a preferred embodiment, it further includes: at least one guy rope 5, one end of the guy rope 5 is connected to the foundation 1, and the other end of the guy rope 5 is connected to the second connection part. Further, due to the self-weight of the submarine cable itself, the component force of its gravity will be transmitted to the bracket 2 through the opening pulley 3. At this time, enough resistance can be provided by the guy rope 5 to prevent the bracket 2 from tipping over.

[0031] Further, as a preferred embodiment, both the guy rope 5 and the towing rope 4 are preferably made of steel wire ropes.

[0032] Further, as a preferred embodiment, multiple guy ropes 5 can be provided, one end of each guy rope 5 is connected to the foundation 1, and the other end of each guy rope 5 is connected to the second connection part.

[0033] Further, as a preferred embodiment, both the first connection part and the second connection part are hole-shaped structures.

[0034] Further, as a preferred embodiment, it further includes: a connecting piece 17, the connecting piece 17 is arranged in a ring structure, the other end of each guy rope 5 is connected to the same connecting piece 17, and the connecting piece 17 is installed on the second connection part.

[0035] Further, as a preferred embodiment, the bracket 2 includes: a first frame body 6 and a second frame body 7, the first frame body 6 and the second frame body 7 are connected in sequence from top to bottom, the second frame body 7 is arranged on the foundation 1, and both the first connection part and the second connection part are formed on the first frame body 6.

[0036] Further, as a preferred embodiment, both the first frame body 6 and the second frame body 7 preferably adopt square tube structures, and rectangular ring-shaped connecting parts with a certain thickness are formed on the outer edges of the lower end of the first frame body 6 and the upper end of the second frame body 7, and adjacent connecting parts can be connected by screws, thereby realizing the connection of the first frame body 6 and the second frame body 7.

[0037] Further, as a preferred embodiment, the first frame body 6 includes: a support column 8, a first connecting plate 9, and a second connecting plate 10. The support column 8 is arranged at the upper end of the second frame body 7. The first connecting plate 9 and the second connecting plate 10 are respectively fixedly connected to both sides of the upper end of the support column 8. A first connecting part is formed on the first connecting plate 9, and a second connecting part is formed on the second connecting plate 10.

[0038] Further, as a preferred embodiment, the first frame body 6 further includes: a reinforcing plate 11. The reinforcing plate 11 is arranged at the upper end of the support column 8, and the upper edges of the first connecting plate 9 and the second connecting plate 10 are both fixedly connected to the lower surface of the reinforcing plate 11.

[0039] Further, as a preferred embodiment, the lower end of the second frame body 7 has two mounting feet 12, and the mounting feet 12 are fixed to the foundation 1 through fasteners.

[0040] Further, as a preferred embodiment, the mounting feet 12 are provided with hole structures for the fasteners to pass through.

[0041] Further, as a preferred embodiment, the mounting feet 12 extend horizontally, and triangular reinforcing ribs are preferably arranged between the mounting feet 12 and the outer wall of the second frame body 7.

[0042] Further, as a preferred embodiment, the open pulley 3 includes: a hook 13, a plate frame 14, and a pulley main body. The hook 13 is arranged at the upper end of the plate frame 14. The hook 13 is connected to the first connecting part. The pulley main body is arranged inside the plate frame 14, and the towing rope 4 is arranged passing through the pulley main body.

[0043] Further, as a preferred embodiment, the plate frame 14 includes two adjacent plate members. The pulley is rotatably connected between the two plate members, and the ends of the two plate members are both connected to the hook 13.

[0044] Further, as a preferred embodiment, the open pulley 3 is preferably a hoisting pulley structure.

[0045] Further, as a preferred embodiment, a gap for the towing rope 4 to enter and exit is formed between two adjacent plate members.

[0046] Further, as a preferred embodiment, the hook 13 is preferably a ring structure.

[0047] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly.

[0048] The present invention also has the following implementation manners on the basis of the above:

[0049] In a further embodiment of the present invention, a flange structure 15 is formed on the basis 1, and the lower end of the bracket 2 and the guy wire 5 are both connected to the flange structure 15.

[0050] In a further embodiment of the present invention, the flange structure 15 is arranged in a ring shape.

[0051] In a further embodiment of the present invention, the flange structure 15 has a number of flange holes.

[0052] In a further embodiment of the present invention, the hole structures of at least two mounting feet 12 of adjacent two flange holes are matched.

[0053] In a further embodiment of the present invention, one end of the guy wire 5 can be installed at the flange hole.

[0054] In a further embodiment of the present invention, when the number of the guy wires 5 is multiple, they can be arranged at different flange holes.

[0055] In a further embodiment of the present invention, a guide pipe 16 is arranged on the outer side of the basis 1 along the horizontal direction, and one end of the towing rope 4 is arranged to pass through the guide pipe 16 from top to bottom. Further, through the arrangement of the guide pipe 16, the upward movement of the towing rope 4 can be better guided from the seabed.

[0056] In a further embodiment of the present invention, the guide pipe 16 is arranged in a J shape. Further, the upper part of the guide pipe 16 extends along the vertical direction, and the lower end of the guide pipe 16 has a tendency to bend away from the basis 1.

[0057] In a further embodiment of the present invention, it further includes: a cage 18, the cage 18 is arranged in a ring-shaped cage structure, the inner edge of the cage 18 is fixedly connected to the basis 1, and the cage 18 is sleeved on the outer periphery of the flange structure 15. Further, the safety of the staff at the upper end of the basis 1 is ensured through the cage 18.

[0058] In a further embodiment of the present invention, it further includes: a submarine cable anchoring device, the submarine cable anchoring device is arranged at the upper end of the guide pipe 16, and the submarine cable anchoring device is used for locking the end of the submarine cable extending upward from the guide pipe 16 to prevent it from falling.

[0059] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary device for submarine cable landing, characterized in that Comprising: Base; Bracket, the lower end of the bracket is fixedly arranged on the upper end of the base, the upper end of the bracket has a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively arranged on both sides of the bracket along the horizontal direction; Open pulley, the upper end of the open pulley is connected to the first connecting part; Traction rope, one end of the traction rope passes through the open pulley and extends downward, and one end of the traction rope is connected to the end of a submarine cable; Workboat, a winch is arranged on the workboat, and the other end of the traction rope is connected to the winch.

2. The submarine cable landing auxiliary device according to claim 1, wherein, Further comprising: At least one guy rope, one end of the guy rope is connected to the base, and the other end of the guy rope is connected to the second connecting part.

3. The submarine cable landing auxiliary device according to claim 1, characterized in that, The bracket comprises: a first frame body and a second frame body, the first frame body and the second frame body are sequentially connected from top to bottom, the second frame body is arranged on the base, and the first connecting part and the second connecting part are both formed on the first frame body.

4. The submarine cable landing auxiliary device according to claim 3, characterized in that, The first frame body comprises: a support column, a first connecting plate and a second connecting plate, the support column is arranged on the upper end of the second frame body, the first connecting plate and the second connecting plate are respectively fixedly connected to both sides of the upper end of the support column, the first connecting part is formed on the first connecting plate, and the second connecting part is formed on the second connecting plate.

5. The submarine cable landing auxiliary device according to claim 4, characterized in that, The first frame body further comprises: a reinforcing plate, the reinforcing plate is arranged on the upper end of the support column, and the upper edges of the first connecting plate and the second connecting plate are both fixedly connected to the lower surface of the reinforcing plate.

6. The submarine cable landing auxiliary device according to claim 3, wherein, The lower end of the second frame body has two mounting feet, and the mounting feet are fixed on the base through fasteners.

7. The submarine cable landing auxiliary device according to claim 1, characterized in that The open pulley comprises: a hook, a plate frame and a pulley body, the hook is arranged on the upper end of the plate frame, the hook is connected to the first connecting part, the pulley body is arranged inside the plate frame, and the traction rope passes through the pulley body.

8. The submarine cable landing auxiliary device according to claim 2, characterized in that, A flange structure is formed on the base, and the lower end of the bracket and the guy rope are both connected to the flange structure.

9. The submarine cable landing auxiliary device according to claim 1, characterized in that A guide pipe is arranged on the outer side of the base along the horizontal direction, and one end of the traction rope passes through the guide pipe from top to bottom.

10. The submarine cable landing auxiliary device according to claim 9, wherein, The guide pipe is arranged in a J shape.

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