Submarine cable laying ship

Abstract

A submarine cable laying vessel comprises: a vessel body; the cable cabin is arranged in the ship body, a plurality of cable trays are arranged in the cable cabin, and the cable trays are used for providing submarine cables; the cable distribution car room is arranged in the ship body, a cable distribution operation line is arranged in the cable distribution car room, and the cable distribution operation line is used for conveying submarine cables provided by the cable reel to the tail of the ship body; and the submarine cable water entry device is arranged at the tail part of the ship body and is used for guiding the submarine cable conveyed by the cable laying operation line to enter water. By adopting the structure, the cable cabin is arranged in the ship body, so that the gravity center of the ship can be lowered, the stability of the ship is guaranteed, and the working space and the storage area of the main deck of the ship body are released. The cable laying vehicle room is arranged in the ship body, so that the cable laying operation line can be located in a closed space to perform operation on submarine cables. Therefore, the stability and controllability of the working environment can be improved, the influence of the external environment on the cable distribution cars is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ships, in particular to a submarine cable laying ship. Background Art

[0002] With the development of offshore new energy power generation and oil and gas moving towards the deep sea, the development of intercontinental communications, and the demand for offshore island development, it is necessary to lay large quantities of long-distance electrical cables, optical cables and other submarine cables on the seabed.

[0003] Submarine cable laying vessels are engineering vessels dedicated to laying or repairing submarine cables and optical cables. Existing domestic cable laying vessels are either transformed from deck barges or are barge-type deck single cable drums, which have defects such as low cable carrying capacity and short one-time cable laying distance. In addition, the cable laying operation line of existing cable laying vessels is set on the main deck and exposed to the external environment, which is easy to affect the connection and testing of submarine cables and optical cables, thereby affecting the operation efficiency. Therefore, there is an urgent need for a submarine cable laying vessel that can increase the cable carrying capacity, extend the cable laying distance, provide a strictly controllable environment for the operation, and improve the operation efficiency. Summary of the invention

[0004] In view of the above problems in the prior art, the present application provides a submarine cable laying vessel that can increase the cable carrying capacity, extend the cable laying distance, provide a strictly controllable environment for the operation, and improve the operation efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides a submarine cable laying vessel, comprising: a hull; a cable cabin, the cable cabin being arranged inside the hull, a plurality of cable drums being arranged in the cable cabin, the cable drums being used to provide submarine cables; a cable laying workshop, the cable laying workshop being arranged inside the hull, a cable laying operation line being arranged in the cable laying workshop, the cable laying operation line being used to transport the submarine cables provided by the cable drums to the stern of the hull; a submarine cable entering water device, the submarine cable entering water device being arranged at the stern of the hull, and being used to guide the submarine cable transported by the cable laying operation line into the water.

[0006] By adopting the above structure, by setting the cable cabin inside the hull, the center of gravity of the ship can be lowered, the stability of the ship can be ensured, and the working space and storage area of ​​the main deck of the hull can be released. By setting the cable laying workshop inside the hull, the cable laying operation line can be operated in a closed space to operate the submarine cable. In this way, the stability and controllability of the working environment can be improved, the impact of the external environment on the cable laying workshop can be reduced, and the working efficiency can be improved.

[0007] In addition, by arranging multiple cable drums in the cable cabin, the total cable carrying capacity of the cable cabin can be increased, thereby increasing the one-time cable laying distance of the submarine cable laying vessel and improving the transoceanic cable laying operation capability of the submarine cable laying vessel.

[0008] In some embodiments, the cable cabin is disposed within the hull near the bottom of the hull.

[0009] By adopting the above structure and arranging the cable cabin near the bottom of the hull, the center of gravity of the ship can be further lowered, thereby improving the stability of the ship.

[0010] In some embodiments, the hull includes a cable laying deck, which is located at a position of the same width as the hull and passes through the hull, and the cable laying workshop is arranged on the cable laying deck.

[0011] By adopting the above structure, the cable-laying deck is arranged at a position with the same width as the hull, so that the area of ​​the cable-laying deck can be increased to facilitate the layout of the cable-laying workshop and other equipment.

[0012] In some embodiments, the cable cabin is disposed below the cable laying deck.

[0013] By adopting the above structure, the cable cabin is arranged below the cable deck, so that the submarine cable in the cable cabin can be more conveniently delivered to the cable laying operation line in the cable laying workshop, thereby making the layout inside the hull more reasonable and making the delivery of the submarine cable more reasonable.

[0014] In some embodiments, a cable outlet hole is provided on the cable laying deck, and the cable outlet hole corresponds to the cable drum in a one-to-one position. The cable outlet hole is an elongated hole extending along the extension direction of the cable laying operation line. The submarine cable provided by the cable drum passes through the cable outlet hole and enters the submarine cable operation line.

[0015] With the above structure, since the cable drum is located below the cable laying deck, specifically, below the cable laying operation line, the cable outlet holes are set at corresponding positions on the cable drum, so that the submarine cable can directly enter the cable laying operation line from the cable outlet holes, thereby reducing the number of bending times of the submarine cable and reducing the space occupied.

[0016] In addition, since the submarine cable forms an arc at the bending position when passing through the cable outlet hole and entering the cable laying operation line, the cable outlet hole is set as a long hole, so that the cable outlet hole extends along the extension direction of the cable laying operation line, thereby leaving an appropriate space for the bending of the submarine cable, so that the submarine cable can pass through the cable outlet hole more smoothly and enter the cable laying operation line.

[0017] In some embodiments, viewed along the vertical direction, the rear end of the cable outlet hole is arc-shaped and is located at a position corresponding to the axis of the cable drum, and the entrance of the submarine cable through the cable outlet hole into the submarine cable operation line is located at a position corresponding to the axis of the cable drum.

[0018] With the above structure, since the submarine cable will be transported to the stern of the ship by the cable laying operation line after passing through the cable hole, the submarine cable will contact the rear end of the cable hole when passing through the cable hole. By setting the rear end of the cable hole into an arc shape, the submarine cable can pass through the cable hole more smoothly, reducing the damage of the cable hole to the submarine cable when the submarine cable passes through the cable hole.

[0019] In some embodiments, the width of the cable outlet hole near the front end region is greater than the width near the rear end region.

[0020] By adopting the above structure, by making the width of the cable outlet hole near the front end area larger than the width near the rear end area, when installing the submarine cable in the cable cabin, it can be installed from the front end position of the cable outlet hole. As a result, the activity space of the submarine cable at the cable outlet hole position when installing the submarine cable can be increased, so that the submarine cable can pass through the cable outlet hole more smoothly, thereby improving the installation efficiency of the submarine cable. At the same time, by making the width of the cable outlet hole near the rear end area smaller than the width near the front end area, when the submarine cable passes through the cable outlet hole and is transported to the cable laying operation line, the submarine cable can be limited by both sides of the cable outlet hole, reducing the amplitude of the left and right swing of the submarine cable, and improving the stability of the submarine cable during transportation.

[0021] In some embodiments, at least one of the plurality of cable drums is a rotating cable drum, and / or at least one of the cable drums is a fixed cable drum.

[0022] With the above structure, since the advantages and disadvantages of the rotating cable drum and the fixed cable drum are different, the rotating cable drum can actively release the submarine cable by rotating, reduce the traction resistance, and avoid the distortion of the submarine cable. It is suitable for continuous laying and operation scenarios that require frequent adjustment of the cable release direction or speed. The fixed cable drum has a large cable carrying capacity, a simple structure, and strong reliability. It is suitable for large-capacity stable storage and is used for long-distance, one-time laying needs. Therefore, the appropriate cable drum can be selected for operation according to needs, thereby improving the flexibility and adaptability of the submarine cable laying ship.

[0023] In some embodiments, viewed along the vertical direction, the front end of the cable outlet hole corresponding to the rotating cable drum is arc-shaped.

[0024] With the above structure, when the rotating cable drum outputs the submarine cable, the submarine cable will change its position in the cable outlet hole as the rotating cable drum rotates. By setting the front end of the cable outlet hole to be an arc shape, it is possible to avoid damage to the submarine cable when the submarine cable is output at the front end of the cable outlet hole.

[0025] In some embodiments, the edge of the cable outlet hole is an arc surface.

[0026] By adopting the above structure, by setting the edge of the cable outlet hole to a circular arc surface, it is possible to avoid damage to the submarine cable when the submarine cable passes through the cable outlet hole for output.

[0027] These and other aspects of the invention will become apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

[0029] Figure 1 This is a schematic diagram of the side structure of the submarine cable laying vessel in this application;

[0030] Figure 2 for Figure 1 Schematic diagram of part of the structure above the middle cable-laying deck;

[0031] Figure 3 for Figure 1 Schematic diagram of part of the structure below the middle cable-laying deck;

[0032] Figure 4 This is a schematic diagram of the structure above the ceiling of the cable laying workshop.

[0033] Description of Reference Numerals

[0034] 10 Cable laying vessel; 100 Hull; 110 Cable laying deck; 111 Cable outlet hole; 120 Main deck; 200 Cable cabin; 210 Cable drum; 211 Rotating cable drum; 212 Fixed cable drum; 220 Waste cable storage bin; 300 Cable laying workshop; 310 Cable laying line; 311 Cable guide and pipe rack; 312 Linear cable laying machine; 313 Drum tensioner; 314 Crawler cable laying machine; 320 Repeater stacking area; 3 30 Cable laying control room; 340 Cable laying test room; 350 Integrated splicing room; 360 Travelling crane; 370 Rope storage winch; 380 Friction winch; 390 Control system; 400 Submarine cable launching device; 410 Burying plow; 420 Burying plow workshop and control room; 440 Crane; 450 Gantry winch; 460 Gantry crane; 510 Lateral tube thruster; 520 Fully rotating thruster; 530 Linear thruster. DETAILED DESCRIPTION

[0035] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements. It should therefore be interpreted as specifying the presence of the features, integers or components mentioned, but does not exclude the presence or addition of one or more other features, integers or components and groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0036] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0037] Below, in conjunction with the accompanying drawings, a possible embodiment of the submarine cable laying vessel 10 in the present application is exemplarily described.

[0038] The present application provides a submarine cable laying vessel 10, comprising a hull 100, a cable cabin 200, a cable laying workshop 300 and a submarine cable entry device 400. The cable cabin 200 is arranged inside the hull 100, and a plurality of cable drums 210 are arranged inside the cable cabin 200, and the cable drums 210 are used to provide submarine cables. The cable laying workshop 300 is arranged inside the hull 100, and a cable laying operation line is arranged inside the cable laying workshop 300, and the cable laying operation line is used to transport the submarine cable provided by the cable drum 210 to the stern of the hull 100. The submarine cable entry device 400 is arranged at the stern of the hull 100, and is used to guide the submarine cable transported by the cable laying operation line into the water.

[0039] As described above, by arranging the cable cabin 200 inside the hull 100, the center of gravity of the ship can be lowered, the stability of the ship can be ensured, and the working space and storage area of ​​the main deck 120 of the hull 100 can be released. By arranging the cable laying workshop 300 inside the hull 100, the cable laying operation line can be placed in a closed space to operate the submarine cable. In this way, the stability and controllability of the operating environment can be improved, the impact of the external environment on the cable laying workshop 300 can be reduced, and the operating efficiency can be improved.

[0040] In addition, by arranging a plurality of cable drums 210 in the cable cabin 200, the total cable carrying capacity of the cable cabin 200 can be increased, thereby increasing the one-time cable laying distance of the submarine cable laying vessel 10 and improving the transoceanic cable laying operation capability of the submarine cable laying vessel 10.

[0041] In some embodiments, the cable compartment 200 is disposed in the hull 100 near the bottom of the hull 100. Thus, by disposing the cable compartment 200 near the bottom of the hull 100, the center of gravity of the ship can be further lowered, thereby improving the stability of the ship.

[0042] In some embodiments, the hull 100 includes a cable laying deck 110, which is located at the same width as the hull 100 and penetrates the hull 100, and the cable laying workshop 300 is arranged on the cable laying deck 110. Therefore, by arranging the cable laying deck 110 at the same width as the hull 100, the area of ​​the cable laying deck 110 can be increased to facilitate the arrangement of the cable laying workshop 300 and other equipment.

[0043] In some embodiments, the cable cabin 200 is disposed below the cable deck 110. Thus, by disposing the cable cabin 200 below the cable deck 110, the submarine cable in the cable cabin 200 can be more conveniently delivered to the cable laying operation line in the cable laying workshop 300. Thus, the layout inside the hull 100 can be made more reasonable, and the delivery of the submarine cable can be made more reasonable.

[0044] In some embodiments, a cable outlet hole is provided on the cable deck 110, and the cable outlet hole corresponds to the cable drum 210 in a one-to-one position. The cable outlet hole is an elongated hole extending along the extension direction of the cable laying operation line, and the submarine cable provided by the cable drum 210 passes through the cable outlet hole to enter the submarine cable operation line. Since the cable drum 210 is located below the cable deck 110, specifically, below the cable laying operation line, by setting the cable outlet hole at a one-to-one corresponding position of the cable drum 210, the submarine cable can directly enter the cable laying operation line from the cable outlet hole, thereby reducing the number of bending times of the submarine cable and reducing the space occupied. In addition, when the submarine cable passes through the cable outlet hole to enter the cable laying operation line, an arc shape is formed at the bending position. By setting the cable outlet hole as an elongated hole, the cable outlet hole extends along the extension direction of the cable laying operation line, thereby leaving an appropriate space for the bending of the submarine cable, so that the submarine cable can pass through the cable outlet hole more smoothly to enter the cable laying operation line.

[0045] In some embodiments, viewed in the vertical direction, the rear end of the cable outlet hole is in an arc shape and is located at a position corresponding to the axis of the cable drum 210, and the entrance of the submarine cable passing through the cable outlet hole and entering the submarine cable operation line is located at a position corresponding to the axis of the cable drum 210. Since the submarine cable will be transported to the stern of the ship by the cable laying operation line after passing through the cable outlet hole, the submarine cable will contact the rear end of the cable outlet hole when passing through the cable outlet hole. By setting the rear end of the cable outlet hole in an arc shape, the submarine cable can pass through the cable outlet hole more smoothly, reducing the damage of the cable outlet hole to the submarine cable when the submarine cable passes through the cable outlet hole.

[0046] In some embodiments, the width of the cable outlet hole near the front end area is greater than the width near the rear end area. Thus, by making the width of the cable outlet hole near the front end area greater than the width near the rear end area, when installing a submarine cable in the cable cabin 200, the cable can be installed from the front end position of the cable outlet hole. Thus, the activity space of the submarine cable at the cable outlet hole position when installing the submarine cable can be increased, so that the submarine cable can pass through the cable outlet hole more smoothly, thereby improving the installation efficiency of the submarine cable. At the same time, by making the width of the cable outlet hole near the rear end area smaller than the width near the front end area, when the submarine cable passes through the cable outlet hole to be transported to the cabling operation line, the submarine cable can be limited by both sides of the cable outlet hole, reducing the amplitude of the left and right swing of the submarine cable, and improving the stability of the submarine cable during transportation.

[0047] In some embodiments, at least one of the multiple cable drums 210 is a rotating cable drum 211, and / or at least one of the cable drums 210 is a fixed cable drum 212. Specifically, the multiple cable drums 210 can be two, three, four or other numbers, and there is no restriction on this. The multiple cable drums 210 can all be rotating cable drums 211 or fixed cable drums 212, or a part of them can be rotating cable drums 211 and the other part can be fixed cable drums 212, and there is no restriction on this. Since the advantages and disadvantages of the rotating cable drum 211 and the fixed cable drum 212 are different, the rotating cable drum 211 can actively release the submarine cable by rotating, reduce the traction resistance, and avoid the distortion of the submarine cable, which is suitable for continuous laying and the operation scene where the direction or speed of the cable release needs to be frequently adjusted. The fixed cable drum 212 has a large cable carrying capacity, a simple structure, and strong reliability. It is suitable for large-capacity stable storage and is used for long-distance, one-time laying requirements. Therefore, a suitable cable drum 210 can be selected for operation as needed, thereby improving the flexibility and adaptability of the submarine cable laying ship 10.

[0048] In some embodiments, viewed in the vertical direction, the front end of the cable outlet hole corresponding to the rotating cable drum 211 is in an arc shape. When the rotating cable drum 211 outputs the submarine cable, the submarine cable will change its position in the cable outlet hole as the rotating cable drum 211 rotates. By also setting the front end of the cable outlet hole in an arc shape, it is possible to avoid damage to the submarine cable when the submarine cable is output at the front end of the cable outlet hole.

[0049] In some embodiments, the edge of the cable outlet hole is an arc surface. Thus, by setting the edge of the cable outlet hole to be an arc surface, it is possible to avoid damage to the submarine cable when the submarine cable passes through the cable outlet hole for output.

[0050] The above content is an exemplary description of a possible embodiment of the submarine cable laying vessel 10 in the present application. Next, in conjunction with the accompanying drawings, the specific structure of the submarine cable laying vessel 10 in the present application is described in detail in a specific embodiment.

[0051] Figure 1It is a schematic diagram of the side structure of the submarine cable laying vessel 10 in the present application; Figure 2 for Figure 1 A schematic diagram of a portion of the structure above the middle cabling deck 110; Figure 3 for Figure 1 A schematic diagram of the structure below the middle cable deck 110. Figure 1-Figure 3 As shown, the submarine cable laying vessel 10 in the present application is a 10,000-ton transoceanic three-cable drum 210 submarine cable laying vessel 10, including a hull 100 and a cable cabin 200, a cable laying workshop 300 and a submarine cable entry device 400 arranged on the hull 100. Among them, the cable cabin 200 is used to provide submarine cables, the cable laying workshop 300 is used to connect and test submarine cables, and the submarine cable entry device 400 is used to lay submarine cables on the seabed.

[0052] like Figure 1 , Figure 2 As shown, the hull 100 has a main deck 120 and a cable deck 110. The main deck 120 is located at the upper part of the hull 100, so that a closed installation space is formed in the hull 100. The cable deck 110 is located below the main deck 120 and is arranged through the hull 100 at a position equal to the width.

[0053] like Figure 1 , Figure 3 As shown, the cable compartment 200 is arranged inside the hull 100, in the space below the cable deck 110, that is, near the bottom of the hull 100. In the front and rear direction of the hull 100, the cable compartment 200 is located in the middle of the hull 100. As a result, the center of gravity of the ship can be located at the lower position of the ship and the middle position of the ship in the front and rear direction, thereby improving the stability of the ship. Three cable drums 210 are arranged in the cable compartment 200, and the three cable drums 210 are arranged in the front and rear direction.

[0054] A cable drum 210 located in the front position is a rotating cable drum 211 with a rated cable carrying capacity of 3,000 tons. It has an electric rotation system and is arranged on the inner bottom plate of the hull 100 through a hub-type base. A number of rollers are arranged between the upper surface of the circular ring structure of the hub-type base and the bottom of the turntable. A rotating bearing is provided in the center of the rotating cable drum 211 to realize electric drive rotation. The rotating cable drum 211 can actively release the submarine cable by rotating, reduce traction resistance, and avoid twisting of the submarine cable. The rotating cable drum 211 is suitable for continuous laying and operation scenarios that require frequent adjustment of the cable release direction or speed. The rotating cable drum 211 can be driven by electricity and can be integrated into a computer control system to achieve precise cable release control.

[0055] The two cable drums 210 located at the rear are fixed cable drums 212. The fixed cable drums 212 have a fixed structure and are directly fixed in the cable cabin. The rated cable carrying capacity is 3,500 tons. The fixed cable drums 212 are statically installed, fixed in position, and supported only by the cable cabin structure. The fixed cable drums 212 have a compact structure and high space utilization, and are suitable for large-capacity stable storage and are used for long-distance, one-time laying requirements.

[0056] When in use, the rotating cable drum 211 and the fixed cable drum 212 can be used in a complementary manner. The rotating cable drum 211 is used for laying key sections (such as areas with complex seabed terrain) to ensure the safe entry of the submarine cable into the water by dynamically adjusting the cable release speed and direction. The fixed cable drum 212 provides a large capacity reserve, supports long-distance transoceanic laying, reduces the frequency of cable replacement in the middle, and improves overall operation efficiency.

[0057] like Figure 1-Figure 3 As shown, two waste cable storage bins 220 are further provided in the cable compartment 200. The waste cable storage bins 220 are located at the rear end of the cable compartment 200 and are used to store discarded or redundant submarine cables.

[0058] The cable laying workshop 300 is arranged inside the hull 100 and is located on the cable laying deck 110. The cable laying workshop 300 includes a cable laying operation line 310, which extends from the cable laying workshop 300 to the stern and delivers the submarine cable to the submarine cable entry device 400. The cable laying operation line 310 is a dual-channel cable laying operation line 310. During the cable laying process, two independent lines or systems can be used to complete the operation task. In this way, it can be ensured that when any one line fails, the other line can still operate normally, thereby providing double protection and reducing dependence on a single system.

[0059] like Figure 2 As shown, the cable deck 110 is also provided with three cable outlet holes 111, which are arranged one by one with the three cable drums 210 and are located directly above the cable drums 210. The cable operation line 310 is provided with an entrance at the corresponding central position of each of the three cable drums 210, and the submarine cables provided by the three cable drums 210 are respectively transported to the cable operation line 310 through the corresponding three cable outlet holes 111 through the cable deck 110 and from the entrance.

[0060] like Figure 2As shown, the cable outlet hole 111 is an elongated hole extending forward from the center of the cable drum 210 to the edge of the cable drum 210. In the vertical direction, the rear end of the cable outlet hole 111 corresponding to the fixed cable drum 212 is arc-shaped, so that when the submarine cable passes through the cable outlet hole 111 from the rear end position of the cable outlet hole 111 to the cable laying operation line 310, the transportation of the submarine cable is smoother and the damage to the submarine cable is reduced. The front and rear ends of the cable outlet hole 111 corresponding to the rotating cable drum 211 are both arc-shaped, so that when the submarine cable is transported outward with the rotating rotating cable drum 211, when the cable outlet hole 111 moves to the front end, damage to the submarine cable is avoided.

[0061] like Figure 2 As shown, the width of the cable outlet hole 111 near the front end area is greater than the width near the rear end area. Therefore, by making the width of the cable outlet hole 111 near the front end area greater than the width near the rear end area, when installing a submarine cable in the cable cabin 200, the cable outlet hole 111 can be installed from the front end position. Therefore, the activity space of the submarine cable at the position of the cable outlet hole 111 when installing the submarine cable can be increased, so that the submarine cable can pass through the cable outlet hole 111 more smoothly, thereby improving the installation efficiency of the submarine cable. At the same time, by making the width of the cable outlet hole 111 near the rear end area smaller than the width near the front end area, when the submarine cable passes through the cable outlet hole 111 and is transported to the cabling operation line 310, the submarine cable can be limited by both sides of the cable outlet hole 111, reducing the amplitude of the left and right swing of the submarine cable, and improving the stability of the submarine cable during transportation.

[0062] The edge of the cable outlet hole 111 is an arc surface. Specifically, the position where the cable outlet hole 111 and the upper and lower surfaces of the cable deck 110 meet can be directly polished and processed into an arc surface when processing the cable outlet hole 111, or a component with a circular cross section can be sleeved on the edge of the cable outlet hole 111. In this way, it can be avoided that the submarine cable is damaged when passing through the cable outlet hole 111.

[0063] like Figure 2 As shown, the cable laying line 310 includes a cable guide and pipe rack 311, a linear cable laying machine 312, a drum tensioner 313 and a crawler cable laying machine 314. Among them, the cable guide and pipe rack 311 is used to guide the moving direction of the submarine cable to ensure that the submarine cable maintains a stable path during the laying process to avoid damage caused by bending, twisting or friction. The linear cable laying machine 312 can transport the submarine cable from the cable cabin to the tensioner or the submarine cable entry device 400 in a linear manner to control the release speed and direction of the submarine cable. The drum tensioner 313 is used to dynamically adjust the tension of the submarine cable to prevent the submarine cable from being too loose (accumulated) or too tight (broken) due to the movement of the ship or the change of the seabed terrain. The crawler cable laying machine 314 can clamp the surface of the submarine cable through the crawler, provide high traction, and accurately control the moving speed and position of the submarine cable, which is suitable for complex laying scenarios.

[0064] like Figure 2 As shown, the submarine cable entry device 400 is arranged in the rear area of ​​the cable laying deck 110, including a laying plow 410 and a laying plow workshop and a control room 420, a crane 440, a buoy and gantry winch 450, and a gantry crane 460. The place where the cable laying deck 110 is connected to the stern cover plate of the hull 100 is provided with a water entry trough structure protruding from the stern and a roller-type towing rack.

[0065] like Figure 1 , Figure 2 As shown, the cabling workshop 300 also includes a repeater stacking area 320, a cabling control room 330, a cabling test room 340, and an integrated splicing room 350. The repeater stacking area 320 is used to store and distribute signal relay equipment, the cabling control room 330 is used to centrally monitor and operate the cabling process, the cabling test room 340 is used to detect the performance and connection quality of the submarine cable, and the integrated splicing room 350 is used to handle the splicing and repair of the submarine cable.

[0066] like Figure 1 As shown, the cable-laying workshop 300 further includes a crane 360 ​​disposed under the ceiling of the cable-laying workshop 300. The crane 360 ​​is arranged along the front-to-back direction of the cable-laying workshop 300 and is used to move heavy objects such as repeaters and submarine cables.

[0067] Figure 4 FIG. 3 is a schematic diagram of the structure above the ceiling of the cabling workshop 300. Figure 4 As shown, the cable laying workshop 300 also includes a rope storage winch 370, a friction winch 380, an underwater robot (ROV) and its lowering and recovery system (LARS), and a power and control system 390, which are arranged on the ceiling of the cable laying workshop 300. Among them, the rope storage winch 370 and the friction winch 380 are used to control the tension of the traction rope, the underwater robot (ROV) and its lowering and recovery system (LARS) are used for underwater robot operation and recovery, and the power and control system 390 is used to provide equipment power and automatic control.

[0068] like Figure 1 As shown, the submarine cable laying vessel 10 also includes a power device. Specifically, three lateral tube thrusters 510 are arranged at the bow, and two full-rotation thrusters 520 and a linear thruster 530 are arranged at the stern. The full electric propulsion system, power system, control system, hydroacoustic equipment, depth sounder and other sensors together constitute a level 2 dynamic positioning system (DP2)

[0069] The submarine cable laying vessel 10 also includes a cable laying computer control system, which enables the operation control systems of the drum machine, the linear cable laying machine, the laying plough, etc. to cooperate with the dynamic positioning system to realize automated submarine cable laying and maintenance operations.

[0070] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.

Claims

1. A submarine cable laying vessel, characterized in that: include: hull; A cable cabin, the cable cabin is arranged inside the hull, and a plurality of cable drums are arranged in the cable cabin, and the cable drums are used to provide submarine cables; A cable laying workshop, wherein the cable laying workshop is arranged inside the hull, and a cable laying operation line is arranged in the cable laying workshop, and the cable laying operation line is used to transport the submarine cable provided by the cable drum to the stern of the hull; A submarine cable entering water device is arranged at the stern of the hull and is used to guide the submarine cable transported by the cable laying operation line into the water.

2. The submarine cable laying vessel according to claim 1, characterized in that: The cable cabin is arranged in the hull at a position close to the bottom of the hull.

3. The submarine cable laying vessel according to claim 1, characterized in that: The hull comprises a cable-laying deck, which is located at a position having the same width as the hull and passes through the hull, and the cable-laying workshop is arranged on the cable-laying deck.

4. The submarine cable laying vessel according to claim 3, characterized in that: The cable cabin is arranged below the cable laying deck.

5. The submarine cable laying vessel according to claim 4, characterized in that: The cable laying deck is provided with a cable outlet hole, which corresponds to the cable drum in a one-to-one position. The cable outlet hole is an elongated hole extending along the extension direction of the cable laying operation line. The submarine cable provided by the cable drum passes through the cable outlet hole and enters the submarine cable operation line.

6. The submarine cable laying vessel according to claim 5, characterized in that: Viewed in the vertical direction, the rear end of the cable outlet hole is arc-shaped and is located at a position corresponding to the axis of the cable drum. The entrance of the submarine cable passing through the cable outlet hole and entering the submarine cable operation line is located at a position corresponding to the axis of the cable drum.

7. The submarine cable laying vessel according to claim 6, characterized in that: The width of the cable outlet hole near the front end is greater than the width near the rear end.

8. The submarine cable laying vessel according to claim 5, characterized in that: At least one of the plurality of cable drums is a rotating cable drum, and / or at least one of the cable drums is a fixed cable drum.

9. The submarine cable laying vessel according to claim 8, characterized in that: Viewed from the vertical direction, the front end of the cable outlet hole corresponding to the rotating cable drum is in an arc shape.

10. The submarine cable laying vessel according to any one of claims 5 to 9, characterized in that: The edge of the cable outlet hole is an arc surface.

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