A submarine cable transfer device

Abstract

The present invention relates to the field of submarine cable connection technology, and in particular to a submarine cable transfer device, comprising a cable laying vessel and a vessel to be transferred. The submarine cable transfer device of the present invention uses a transfer method to transport the submarine cable, which can reduce the number of ship movements and reduce engineering costs. The transmission height of the submarine cable is adjusted by lifting and lowering during the entire connection process, thereby effectively reducing resistance and energy consumption during the connection process. A first 10T tractor is movably assembled with an electrically controlled lifting and translation mechanism via an internal mounting seat, which not only controls the height but also automatically adjusts and translates when the ship shifts, thereby ensuring the stability of the output position and connection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable connection, in particular to a submarine cable transfer device. Background Art

[0002] During submarine cable installation in offshore wind power projects, the typical workflow for a cable-laying vessel is: loading the cable at the cable yard, transporting the cable to the wind farm, installing the cable, and then demobilizing upon completion. In some larger wind farms, to meet deadlines, three work areas are typically divided (requiring three cable-laying vessels to work together), typically with one main cable-laying vessel and two intermediate cable-laying vessels. Most cable-laying vessels lack their own power and require tugboats to operate. This requires three tugboats to tow the three cable-laying vessels from the cable yard to the wind farm, resulting in high costs for mobilizing and demobilizing the vessels. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the traditional cable laying vessel has a long construction period and high cost.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a submarine cable transfer device, including an interval cable laying vessel and a transferred ship, the upper surface of the interval cable laying vessel is equipped with a first rotating cable storage pool for storing submarine cables, a first cable pool arc-shaped bracket, a first 5T tractor, a first output arc-shaped bracket and a first 10T tractor, the upper surface of the transferred ship is equipped with a second rotating cable storage pool for receiving submarine cables, a second cable pool arc-shaped bracket, a second 5T tractor, a second output arc-shaped bracket and a second 10T tractor, the upper surface of the interval cable laying vessel is equipped with an electrically controlled lifting and translation mechanism at the position of the first 10T tractor, and the first 10T tractor is movably assembled with the electrically controlled lifting and translation mechanism through an internal mounting seat.

[0005] The upper surface of the interval cable laying vessel is equipped with a first fixed frame for installing a first cable pool arc-shaped bracket, a first 5T traction machine, and a first output arc-shaped bracket.

[0006] The upper surface of the barge is equipped with a second fixed frame for installing a second cable pool arc bracket, a second 5T tractor, and a second output arc bracket.

[0007] A first longitudinal material guide frame is installed on the upper surface of the interval cable laying ship between the first output arc bracket and the first 10T traction machine.

[0008] A second longitudinal material guide frame is installed on the upper surface of the ship being transferred, between the second output arc bracket and the second 10T tractor.

[0009] A sunken installation groove is provided on the upper surface of the interval cable laying ship at the position of the electric-controlled lifting and translation mechanism, and an embedded guide frame is fixedly installed inside the sunken installation groove.

[0010] A side guide groove is provided on the inner side of the embedded guide frame, and the electric-controlled lifting and translation mechanism is inserted into the side guide groove through the side guide column on the outer side and is slidably assembled with the embedded guide frame.

[0011] The electrically controlled lifting and translation mechanism includes a horizontal assembly frame with side guide columns on the outside, two translation guide rods installed on the upper end of the horizontal assembly frame through the two side frames, an electrically controlled translation screw installed on the lower end of the horizontal assembly frame through the two side frames, and an electrically controlled lifting support rod fixedly installed inside the side guide columns.

[0012] The internal mounting seat is slidably assembled with the two translation guide rods through the upper guide slider, and the internal mounting seat is threadedly assembled with the electric control translation screw rod through the internal thread guide block at the bottom end. The upper surface of the horizontal assembly frame is bolted with an upper closed cover plate.

[0013] The internal mounting seat is symmetrically mounted with two lateral extrusion arms via a lateral bracket, and a pressure control module for controlling the forward and reverse rotation of the electric-controlled translation screw is mounted on the inner contact surface of the lateral extrusion arm.

[0014] The beneficial effects of the present invention are:

[0015] (1) The submarine cable transfer device of the present invention uses a connecting method to transport the submarine cable, which can reduce the number of ship movements and reduce engineering costs;

[0016] (2) The transmission height of the submarine cable is adjusted by lifting and lowering during the entire connection process, thereby effectively reducing the resistance during the connection process and reducing energy consumption;

[0017] (3) The first 10T tractor is assembled with an electric-controlled lifting and translation mechanism through an internal mounting seat. It can not only control the height, but also automatically adjust the translation when the hull deviates, thereby ensuring the stability of the output position and the efficiency of docking.

[0018] (4) The entire electrically controlled lifting and translation mechanism adopts an embedded lifting design, which can be lowered and stored when not in use, thereby greatly increasing the surface space of the splint and greatly improving space utilization;

[0019] (5) The electric control mechanisms on the electric lifting and translation mechanisms all adopt a hidden design, which greatly improves safety and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a structural diagram of the first connection method in the present invention.

[0022] Figure 2 It is a structural diagram of the assembly end of the electrically controlled lifting and translation mechanism of the present invention.

[0023] Figure 3 It is a side view of the electrically controlled lifting and translation mechanism of the present invention.

[0024] Figure 4 It is a structural diagram of the second connection method in the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] Figure 1 、 Figure 2 and Figure 3 The submarine cable transfer device shown includes an interval cable laying vessel 1 and a transferred ship 2. The upper surface of the interval cable laying vessel 1 is equipped with a first rotating cable storage pool 3 for storing submarine cables, a first cable pool arc-shaped bracket 4, a first 5T tractor 5, a first output arc-shaped bracket 6 and a first 10T tractor 7. The upper surface of the transferred ship 2 is equipped with a second rotating cable storage pool 8 for receiving submarine cables, a second cable pool arc-shaped bracket 9, a second 5T tractor 10, a second output arc-shaped bracket 11 and a second 10T tractor 12. An electrically controlled lifting and translation mechanism 13 is installed on the upper surface of the interval cable laying vessel 1 at the position of the first 10T tractor 7. The first 10T tractor 7 is movably assembled with the electrically controlled lifting and translation mechanism 13 through an internal mounting seat 14.

[0028] The upper surface of the interval cable laying vessel 1 is equipped with a first fixed frame 15 for installing the first cable pool arc bracket 4, the first 5T traction machine 5, and the first output arc bracket 6.

[0029] The upper surface of the barge vessel 2 is equipped with a second fixed frame 16 for installing the second cable pool arc bracket 9, the second 5T tractor 10, and the second output arc bracket 11.

[0030] A first longitudinal material guide frame 17 is installed on the upper surface of the interval cable laying vessel 1 between the first output arc bracket 6 and the first 10T traction machine 7.

[0031] A second longitudinal material guiding frame 18 is installed on the upper surface of the barge vessel 2 between the second output arc bracket 11 and the second 10T tractor 12 .

[0032] A sunken installation groove is provided on the upper surface of the interval cable laying vessel 1 at the position of the electrically controlled lifting and translation mechanism 13 , and an embedded guide frame 19 is fixedly mounted inside the sunken installation groove.

[0033] A side guide groove is provided on the inner side of the embedded guide frame 19 , and the electrically controlled lifting and translation mechanism 13 is inserted into the side guide groove through the side guide column 20 on the outer side and is slidably assembled with the embedded guide frame 19 .

[0034] The electrically controlled lifting and translation mechanism 13 includes a horizontal assembly frame 131 with side guide columns 20 on the outside, two translation guide rods 132 installed on the upper end of the horizontal assembly frame 131 through two side frames, an electrically controlled translation screw rod 133 installed on the lower end of the horizontal assembly frame 131 through two side frames, and an electrically controlled lifting support rod 134 fixedly installed inside the side guide columns 20.

[0035] The internal mounting seat 14 is slidably assembled with the two translation guide rods 132 through the upper guide slider 141. The internal mounting seat 14 is threadedly assembled with the electric control translation screw rod 133 through the internal thread guide block 142 at the bottom end. The upper surface of the horizontal assembly frame 131 is bolted with an upper closed cover plate 21.

[0036] In order to facilitate the monitoring of the relative positions of the interval cable laying vessel 1 and the transferred ship 2, the internal mounting seat 14 is symmetrically installed with two lateral extrusion arms 22 through lateral brackets, and a pressure control module 23 for controlling the forward and reverse rotation of the electric-controlled translation screw 133 is installed on the inner contact surface of the lateral extrusion arm 22.

[0037] Control method: When the two ships deviate, the submarine cable or steel rope will be squeezed against the pressure control module 23 on one side of the lateral squeezing arm 22. At this time, the pressure control module 23 will control the rotation of the electric translation screw 133, thereby controlling the translation position of the internal mounting seat 14, so that the submarine cable or steel rope is finally adjusted between the two lateral squeezing arms 22. Only when the pressure control module 23 is squeezed will the electric translation screw 133 be automatically controlled to rotate. Pressure control modules 23 in different positions control the forward and reverse rotation of the electric translation screw 133 respectively.

[0038] like Figure 1 As shown, connection method 1:

[0039] A self-propelled interval cable laying vessel 1 with a large cable-carrying rotating cable storage pool is used to go to the submarine cable factory to load all the submarine cables for the entire wind farm and transport them to the wind farm. At the ship anchorage near the wind farm, the submarine cables carried by the interval cable laying vessel 1 are transferred to the corresponding transferred ship 2.

[0040] Generally, the submarine cable output route of the operation line of the interval cable laying vessel 1 is the first rotating cable storage pool 3 → the first cable storage pool arc-shaped bracket 4 → two first 5T tractors 5 → the first output arc-shaped bracket 6 → the first 10T tractor 7.

[0041] Adjust the first 10T tractor 7 and the second 10T tractor 12 of the interval cable laying vessel 1 and the barged ship 2 to corresponding positions, arrange a 5T winch at an appropriate position next to the second rotating cable storage pool 8, and the wire rope route passes through in this order: second rotating cable storage pool 8 → two second 5T tractors 10 of the barged ship → second output arc-shaped bracket 11 → second 10T tractor 12 → first 10T tractor 7 → first output arc-shaped bracket 6 → two first 5T tractors 5 → first cable storage pool arc-shaped bracket 4 → connect the submarine cable.

[0042] The winch is controlled to retract the steel wire until the submarine cable is pulled from the arc-shaped bracket 4 of the first cable storage pool to the position of the two second 5T tractors 10.

[0043] Then all the tractors of the two ships are started, the winches are removed for traction, and all the tractors pull the submarine cable to the second rotary cable storage pool 8 and fix it in position.

[0044] The relative speeds of the first rotary cable storage pool 3, the first 5T tractor 5, the first 10T tractor 7, the second rotary cable storage pool 8, the second 5T tractor 10 and the second 10T tractor 12 are controlled until the submarine cable is transferred.

[0045] like Figure 4 As shown, connection method 2:

[0046] A self-propelled interval cable laying vessel 1 with a large cable-carrying rotating cable storage pool is used to go to the submarine cable factory to load all the submarine cables for the entire wind farm and transport them to the wind farm. At the ship anchorage near the wind farm, the submarine cables carried by the interval cable laying vessel 1 are transferred to the corresponding transferred ship 2.

[0047] Generally, the submarine cable output route of the operation line of the interval cable laying vessel 1 is the first rotating cable storage pool 3 → the first cable storage pool arc-shaped bracket 4 → two first 5T tractors 5 → the first output arc-shaped bracket 6 → the first 10T tractor 7.

[0048] The output route of the working line of the transferred ship 2 is changed to fixed cable storage pool → back-twist frame → third output arc bracket → third 10T tractor.

[0049] Adjust the 10T tractors of the two ships to the corresponding positions, and place a 5T winch at an appropriate position next to the fixed cable storage pool. The wire rope route passes through in this order: fixed cable storage pool → retraction wheel → third 10T tractor → first 10T tractor 7 → first output arc-shaped bracket 6 → two first 5T tractors 5 of the barge → first cable storage pool arc-shaped bracket 4 → connect the submarine cable.

[0050] The winch is controlled to retract the steel wire until the submarine cable is pulled from the first rotating cable storage pool 3 to the retracting wheel of the barge and then drooped to a fixed position in the fixed cable storage pool.

[0051] The relative speeds of the first rotary cable storage pool 3, the two first 5T tractors 5, the first 10T tractor 7, the third 10T tractor, and the reel are controlled until the submarine cable is transferred.

[0052] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A submarine cable transfer device, comprising a cable laying vessel (1) and a transferred vessel (2), characterized in that: The upper surface of the interval cable laying vessel (1) is equipped with a first rotating cable storage pool (3) for storing submarine cables, a first cable pool arc-shaped bracket (4), a first 5T tractor (5), a first output arc-shaped bracket (6) and a first 10T tractor (7); the upper surface of the transshipped vessel (2) is equipped with a second rotating cable storage pool (8) for receiving submarine cables, a second cable pool arc-shaped bracket (9), a second 5T tractor (10), a second output arc-shaped bracket (11) and a second 10T tractor (12); the upper surface of the interval cable laying vessel (1) is equipped with an electrically controlled lifting and translation mechanism (13) at the position of the first 10T tractor (7); the first 10T tractor (7) is movably assembled with the electrically controlled lifting and translation mechanism (13) through an internal mounting seat (14); The upper surface of the interval cable laying ship (1) is provided with a sunken installation groove at the position of the electrically controlled lifting and translation mechanism (13), and an embedded guide frame (19) is fixedly mounted inside the sunken installation groove; The embedded guide frame (19) has a side guide groove on its inner side, and the electrically controlled lifting and translation mechanism (13) is inserted into the side guide groove through the side guide column (20) on the outer side and is slidably assembled with the embedded guide frame (19); The electrically controlled lifting and translation mechanism (13) comprises a transverse assembly frame (131) having a side guide column (20) on the outside, two translation guide rods (132) mounted on the upper end of the transverse assembly frame (131) via two side frames, an electrically controlled translation screw rod (133) mounted on the lower end of the transverse assembly frame (131) via two side frames, and an electrically controlled lifting support rod (134) fixedly mounted inside the side guide column (20); The internal mounting seat (14) is symmetrically mounted with two lateral extrusion arms (22) via lateral brackets, and a pressure control module (23) for controlling the forward and reverse rotation of the electrically controlled translation screw (133) is mounted on the inner contact surface of the lateral extrusion arm (22).

2. A submarine cable transfer device according to claim 1, characterized in that: The upper surface of the interval cable laying vessel (1) is equipped with a first fixed frame (15) for installing a first cable pool arc bracket (4), a first 5T traction machine (5), and a first output arc bracket (6).

3. The submarine cable transfer device according to claim 1, characterized in that: The upper surface of the barge (2) is equipped with a second fixed frame (16) for installing a second cable pool arc bracket (9), a second 5T tractor (10), and a second output arc bracket (11).

4. The submarine cable transfer device according to claim 1, characterized in that: A first longitudinal material guide frame (17) is installed on the upper surface of the interval cable laying ship (1) between the first output arc bracket (6) and the first 10T traction machine (7).

5. The submarine cable transfer device according to claim 1, characterized in that: A second longitudinal material guide frame (18) is installed on the upper surface of the barge (2) between the second output arc bracket (11) and the second 10T tractor (12).

6. The submarine cable transfer device according to claim 1, characterized in that: The internal mounting seat (14) is mounted on the two translation guide rods (132) through the upper guide slider (141) and is slidably assembled with the two translation guide rods (132). The internal mounting seat (14) is threadedly assembled with the electric translation screw rod (133) through the internal thread guide block (142) at the bottom end. The upper surface of the horizontal assembly frame (131) is bolted with an upper closed cover plate (21).

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