A multifunctional cable laying system

Abstract

This invention relates to the field of cable laying, specifically providing a multifunctional cable laying system, comprising: a hull; a cable storage turntable, disposed on the hull near its midsection, for storing cables; a port-side work line, disposed along the length of the hull on the port side; a starboard-side work line, including a main starboard-side work line and a secondary starboard-side work line disposed side-by-side along the starboard side of the hull, the secondary starboard-side work line being disposed on the side of the main starboard-side work line opposite to the port-side work line; a bow-side turning work channel, one end connected to the input end of the port-side work line and the other end connected to the input end of the main starboard-side work line; a stern-side turning work channel, one end connected to the port-side work line and the other end connected to the end of the secondary starboard-side work line furthest from the cable storage turntable; and a cable guiding mechanism for guiding the cables output from the cable storage turntable to the port-side work line and / or the secondary starboard-side work line. The multifunctional cable laying system of this invention can effectively improve cable laying efficiency.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and more specifically to a multifunctional cable laying system. Background Technology

[0002] With continued investment in offshore oil resource development and marine island and reef construction, the demand for submarine cable laying is also increasing. These cables are typically laid using cable-laying systems carried by specialized cable-laying vessels, and are used to connect important nodes such as facilities within wind farms, oil production platforms, or marine islands and reefs.

[0003] Currently, most submarine cable-laying systems on the market have low levels of integration and limited functionality, resulting in numerous limitations in practical applications. Firstly, most existing systems only support single-cable laying, failing to achieve simultaneous dual-cable laying and restricting operational efficiency. Secondly, these systems typically focus on basic cable laying functions without integrating critical capabilities such as cable splicing and repair; any cable connection or repair requires reliance on dedicated work lines, leading to low equipment reuse rates and fragmented workflows. Furthermore, due to the dispersed functions and insufficient integration, cable laying and subsequent maintenance tasks cannot be completed simultaneously on the same work line, further impacting overall construction efficiency and failing to meet the demands of current large-scale, high-efficiency offshore engineering construction. Summary of the Invention

[0004] In view of this, the present invention provides a multifunctional cable laying system that can effectively improve cable laying efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A multifunctional cable laying system according to an embodiment of the present invention includes:

[0007] hull;

[0008] Cable storage turntable, located on the hull near the midships, is used to store cables;

[0009] The port side work line is set along the length of the hull on the port side of the hull.

[0010] The starboard work line includes the main starboard work line and the auxiliary starboard work line, which are arranged side by side along the length of the hull on the starboard side of the hull. The auxiliary starboard work line is located on the side of the main starboard work line that is away from the port side work line.

[0011] The bow turning operation channel is connected at one end to the input end of the port side operation line and at the other end to the input end of the starboard side main operation line;

[0012] The stern turning operation channel is connected at one end to the port side operation line and at the other end to the starboard side auxiliary operation line away from the cable storage turntable.

[0013] The cable guide mechanism, located between the bow turning access road and the cable storage turntable, is used to pull the cable output from the cable storage turntable to the port working line and / or the starboard auxiliary working line.

[0014] In one embodiment of the present invention, the cable storage turntable is a single-cable turntable or a double-cable turntable;

[0015] The dual-cable turntable includes an inner turntable and an outer turntable arranged concentrically. Each of the inner and outer turntables stores a roll of cable and is driven separately by a corresponding drive mechanism. There are two cable guiding mechanisms. One cable guiding mechanism is used to pull the cable from the outer turntable to the port working line or the starboard auxiliary working line, and the other cable guiding mechanism is used to pull the cable from the inner turntable to the starboard auxiliary working line.

[0016] In one embodiment of the present invention, each cable guide mechanism includes:

[0017] Cable guide frame, with roller channels installed inside the cable guide frame;

[0018] A cable pulling machine, mounted on a cable guide frame, is used to pull cables.

[0019] In one embodiment of the present invention, the port side work line includes:

[0020] The cable splicing room is located between the bow turning access road and the stern turning access road;

[0021] The port side cable tensioner is located between the cable splicing room and the stern turning operation channel, and a first port side cable channel is provided between the cable splicing room and the bow turning operation channel;

[0022] The port side cable inlet is located at the stern of the hull, and a second port side cable channel is provided between the port side cable tensioner and the port side cable inlet.

[0023] In one embodiment of the present invention, the starboard main workline includes:

[0024] Two starboard cable tensioners are installed sequentially along the length of the hull.

[0025] The starboard cable inlet is located at the stern of the hull, and a main channel for the starboard cable is provided between the starboard cable inlet and the nearby starboard cable tensioner.

[0026] In one embodiment of the present invention, the starboard auxiliary work line includes:

[0027] The starboard cable auxiliary channel is set along the length of the hull. One end of the stern turning operation channel passes through the starboard main operation line and connects to the end of the starboard cable auxiliary channel away from the cable storage turntable.

[0028] In one embodiment of the present invention, the multifunctional cable laying system further includes:

[0029] The port side cable traction winch is located between the port side working line and the cable storage turntable. The port side cable traction winch is used to drag the cable on the seabed along the port side working line to the cable splicing room.

[0030] A starboard cable traction winch is located between the starboard main working line and the cable storage turntable. The winch is used to tow the cable on the seabed along the starboard main working line to the starboard cable tensioner, from where the cable is pulled through the bow turning channel to the cable splicing room. In one embodiment of the invention, the second port-side cable channel includes multiple single-cable-channel roller supports connected end-to-end in sequence.

[0031] The bow turning operation channel, the first port side cable channel, the starboard main cable channel, the starboard auxiliary cable channel, and the stern turning operation channel all include multiple double cable channel idler brackets connected end to end in sequence;

[0032] The dual-cable-channel idler bracket is formed by splicing together two single-cable-channel idler brackets.

[0033] In one embodiment of the present invention, a single cable channel roller bracket includes:

[0034] The bracket has a receiving groove on its top for the cable to pass through;

[0035] Two lateral rollers are arranged opposite each other on the side wall of the receiving trough;

[0036] Bottom rollers are positioned at the bottom of the receiving trough;

[0037] The top of the receiving groove is open.

[0038] In one embodiment of the present invention, the multifunctional cable laying system further includes:

[0039] The U-shaped frame is installed above the bow turning operation channel;

[0040] The U-shaped frame track is located between the port and starboard work lines and is set along the length of the hull. The U-shaped frame is connected to the U-shaped frame track by rollers.

[0041] A gantry is located at the stern of the ship, and multiple pulleys are arranged sequentially along the width of the ship on the gantry.

[0042] The above-described technical solution of the present invention has at least one of the following beneficial effects:

[0043] The multifunctional cable-laying system of the present invention, by setting up a port side working line and a main working line and an auxiliary working line on the starboard side respectively, and setting up a bow turning working channel between the port side working line and the main working line on the starboard side, and a stern turning working channel between the port side working line and the auxiliary working line on the starboard side, can realize port side single cable laying, starboard side single cable laying, port and starboard side double cable laying in different trenches, and double cable laying in the same trench by using the port side working line or in conjunction with the main working line and the auxiliary working line on the starboard side. It can meet different cable-laying needs, effectively improve the equipment integration, and thus improve cable-laying efficiency. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of a multifunctional cable laying system in some embodiments of the present invention;

[0045] Figure 2 This is a top view of a multifunctional cable-laying system in some embodiments of the present invention;

[0046] Figure 3 This is a top view of the working line of the multifunctional cable laying system in some embodiments of the present invention;

[0047] Figure 4 This is a schematic diagram of the U-shaped frame structure in some embodiments of the multifunctional cable laying system of the present invention;

[0048] Figure 5 This is a schematic diagram of the structure of the roller support of the multifunctional cable laying system in some embodiments of the present invention;

[0049] Figure 6 This is a schematic diagram of the starboard cable tensioner in some embodiments of the present invention;

[0050] Figure 7 This is a schematic diagram of a multifunctional cable-laying system performing a single cable laying operation on the port side in some embodiments of the present invention;

[0051] Figure 8 This is a schematic diagram of a multifunctional cable-laying system performing a single-cable splicing operation on the port side in some embodiments of the present invention;

[0052] Figure 9 This is a schematic diagram of a starboard single-cable laying operation performed by a multifunctional cable-laying system in some embodiments of the present invention;

[0053] Figure 10 This is a schematic diagram of a multi-functional cable-laying system performing a single-cable splicing operation on the starboard side in some embodiments of the present invention;

[0054] Figure 11This is a schematic diagram illustrating the simultaneous laying of two cables in different trenches on the port and starboard sides using a multifunctional cable-laying system in some embodiments of the present invention.

[0055] Figure 12 This is a schematic diagram of a multifunctional cable-laying system performing port and starboard dual-cable splicing operations in some embodiments of the present invention;

[0056] Figure 13 This is a schematic diagram illustrating the simultaneous laying of two cables in the same trench using a multifunctional cable-laying system in some embodiments of the present invention.

[0057] Figure 14 This is a schematic diagram of a multifunctional cable laying system performing dual-cable splicing operations in the same trench, as shown in some embodiments of the present invention.

[0058] Figure 15 This is a schematic diagram illustrating the splicing of one end of the cable to be repaired during cable maintenance in some embodiments of the multifunctional cable laying system of the present invention;

[0059] Figure 16 This is a schematic diagram illustrating the splicing of the other end of the cable to be repaired during cable maintenance using a multifunctional cable laying system in some embodiments of the present invention.

[0060] Figure 17 This is a schematic diagram of the structure of the multifunctional cable laying system for lowering a U-shaped frame during cable maintenance in some embodiments of the present invention;

[0061] Figure 18 This is another structural schematic diagram of the multifunctional cable laying system for lowering a U-shaped frame during cable maintenance in some embodiments of the present invention.

[0062] Reference numerals: 100, hull; 101, support frame; 102, side roller; 103, bottom roller; 110, U-shaped frame; 111, roller; 112, guide wheel; 113, cable tray; 120, U-shaped frame track; 130, gantry; 131, pulley; 200, cable storage turntable; 300, port side working line; 301, first port side cable channel; 302, second port side cable channel; 310, cable splicing room; 320, port side cable tensioner; 330, port side cable inlet trough; 400 410. Starboard working line; 411. Starboard main working line; 412. Starboard cable tensioner; 413. Starboard cable water inlet; 414. Starboard main cable channel; 415. Tracked tensioner; 426. Hydraulic cylinder; 427. Starboard auxiliary working line; 428. Starboard auxiliary cable channel; 500. Bow turning working channel; 600. Stern turning working channel; 700. Cable guide mechanism; 710. Cable guide frame; 720. Cable traction machine; 800. Port cable traction winch; 900. Starboard cable traction winch. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0064] The following is a detailed description of a multifunctional cable laying system according to an embodiment of the present invention, with reference to the accompanying drawings.

[0065] like Figure 1 , Figure 2 and Figure 3 As shown, the multifunctional cable-laying system of this embodiment may include: a hull 100, a cable storage turntable 200, a port side working line 300, a starboard side working line 400, a bow turning working channel 500, a stern turning working channel 600, and a cable guiding mechanism 700. The cable storage turntable 200 is located on the hull 100 and near its midsection, and is used to store cables. The port side working line 300 is located along the length of the hull 100 on its port side. The starboard side working line 400 includes a main starboard working line 410 and a secondary starboard working line 420, both located side-by-side along the starboard side of the hull 100. The secondary starboard working line 420 is located on the side of the main starboard working line 410 opposite to the port side working line 300. The bow turning operation channel 500 connects at one end to the input end of the port side operation line 300 and at the other end to the input end of the starboard side main operation line 410. The input end of the port side operation line 300 is the end of the port side operation line 300 closest to the cable storage turntable 200, and the input end of the starboard side operation line 400 is the end of the starboard side operation line 400 closest to the cable storage turntable 200. The stern turning operation channel 600 connects at one end to the port side operation line 300 and at the other end to the starboard side auxiliary operation line 420 furthest from the cable storage turntable 200. Both the bow turning operation channel 500 and the stern turning operation channel 600 are U-shaped channels. The cable guide mechanism 700 is located between the bow turning operation channel 500 and the cable storage turntable 200. It is used to pull the cable output from the cable storage turntable 200 to the port working line 300 and / or the starboard auxiliary working line 420. The cable guide mechanism 700 can also store the cable in the cable storage turntable 200.

[0066] In this embodiment, by setting up a port side work line 300 and a starboard side work line 400 including a starboard main work line 410 and a starboard auxiliary work line 420, and by setting up a bow turning work channel 500 between the port side work line 300 and the starboard main work line 410, and a stern turning work channel 600 between the port side work line 300 and the starboard auxiliary work line 420, the multi-functional cable-laying system of the present invention can operate independently via the port side work line 300 or the starboard side work line 400, or can cooperate with the port side work line 300 and the starboard side work line 400 to achieve various cable-laying operation modes. Specifically, the cable storage turntable 200 can guide the cable to the port side work line 300 for independent operation via the cable guiding mechanism 700. Alternatively, the cable can be guided to the starboard auxiliary work line 420 via the cable guide mechanism 700, and then sequentially transported to the starboard main work line 410 via the stern turning work channel 600, the port work line 300, and the bow turning work channel 500, enabling independent operation of the starboard work line 400. Alternatively, it can be used in conjunction with the port work line 300 for simultaneous dual-cable operation. In other words, after the cable of this invention is output along the laying direction of the work line, it is guided by the bow turning work channel 500 and the stern turning work channel 600, enabling cross-ship switching of the cable operation path. This meets the needs of different scenarios, including single-cable laying, cross-ditch dual-cable laying, and same-ditch dual-cable laying, thereby effectively improving equipment integration and cable laying efficiency.

[0067] In one embodiment of the present invention, the cable storage turntable 200 is a single-cable turntable or a double-cable turntable. For example... Figure 1 and Figure 2As shown, in a specific embodiment of the present invention, the cable storage turntable 200 is a double-cable turntable, comprising an inner turntable and an outer turntable arranged concentrically. Each of the inner and outer turntables stores a reel of cable and is driven independently by a corresponding drive mechanism. There are two cable guiding mechanisms 700. One cable guiding mechanism 700 is used to pull the cable from the outer turntable to the port working line 300 or the starboard auxiliary working line 420, and the other cable guiding mechanism 700 is used to pull the cable from the inner turntable to the starboard auxiliary working line 420. Thus, through the coordinated arrangement of the double-cable turntable and the two cable guiding mechanisms 700, the multi-functional cable laying system of the present invention has higher operational flexibility at the cable output end. It can select to guide two reels of cable to the same working line or different working lines for independent or coordinated laying according to different operational needs, making it particularly suitable for complex submarine cable laying scenarios requiring the simultaneous laying of two cables. Meanwhile, since the inner and outer turntables each have independent drive capabilities, they can be flexibly adjusted according to cable type, laying rhythm, and synchronization requirements during actual operation, thereby improving the synchronization and stability of the operation process. Furthermore, the double-cable turntable can also consist of two single-cable turntables arranged sequentially along the length of the hull 100. When the cable storage turntable 200 consists of two single-cable turntables arranged sequentially along the length of the ship, one cable guiding mechanism 700 is used to pull the cable in the single-cable turntable near the stern to the port working line 300 or the starboard auxiliary working line 420, and the other cable guiding mechanism 700 is used to pull the cable in the single-cable turntable near the bow to the starboard auxiliary working line 420. Their functions have been specifically described above and will not be repeated here.

[0068] like Figure 2 As shown, each cable guiding mechanism 700 includes a cable guide frame 710 and a cable traction machine 720. The cable guide frame 710 has a roller channel; the cable traction machine 720 is mounted on the cable guide frame 710 and is used to pull the cable.

[0069] In this embodiment, the idler roller channel is composed of multiple sets of rollers, which can support and guide the cable during traction, effectively reducing the frictional resistance between the cable and structural components. The cable traction machine 720 is a tracked or roller type structure, which provides stable traction force through hydraulic or motor drive, and precisely controls the cable conveying speed and tension. Specifically, after the cable is led out from the cable storage turntable 200, it first enters the idler roller channel of the cable guide frame 710, and then is actively clamped and pulled by the cable traction machine 720 to the target work line, thereby realizing the controllable transmission of the cable from storage to laying.

[0070] like Figure 2 and Figure 3As shown, the port side work line 300 includes: a cable splice room 310, a port side cable tensioner 320, and a port side cable inlet 330. The cable splice room 310 is located between the bow turning work channel 500 and the stern turning work channel 600. The port side cable tensioner 320 is located between the cable splice room 310 and the stern turning work channel 600. A first port side cable channel 301 is provided between the cable splice room 310 and the bow turning work channel 500. The port side cable inlet 330 is located at the stern of the hull 100, and a second port side cable channel 302 is provided between the port side cable tensioner 320 and the port side cable inlet 330.

[0071] In this embodiment, the port side work line 300 forms a continuous work path from the cable splicing room 310 to the cable release position at the stern. Specifically, after the cable is pulled to the port side work line 300 by the cable guide mechanism 700, it can pass sequentially through the port side cable tensioner 320 and the port side cable entry channel 330, and be smoothly transported to the seabed along the cable channel set therebetween. The cable tensioner helps to maintain appropriate cable tension during laying or splicing, preventing operational stability from being affected by slack or excessive tightness. The cable splicing room 310 is located between the bow and stern turning work channel 600, facilitating the splicing operations of the port side work line 300 and the starboard side work line 400, and can meet various operation modes such as port side single cable laying and splicing, starboard side single cable laying and splicing, port and starboard side double cable laying and splicing in different channels, and same channel double cable laying and splicing. Meanwhile, the port side cable entry channel 330 is located at the stern, which allows the cable to smoothly transition to the entry section after tension control is completed, ensuring the continuity and controllability of the overall operation process and improving operation efficiency and cable laying quality.

[0072] like Figure 2 and Figure 3 As shown, the starboard main work line 410 includes two starboard cable tensioners 411 and a starboard cable inlet 412. The two starboard cable tensioners 411 are arranged sequentially along the length of the hull 100; the starboard cable inlet 412 is located at the stern of the hull 100, and a starboard cable main channel 413 is provided between the starboard cable inlet 412 and the adjacent starboard cable tensioner 411.

[0073] In this embodiment, the starboard main work line 410 constitutes a continuous work path from cable tensioning control to water-laying. Specifically, two starboard cable tensioners 411 arranged sequentially along the length of the hull 100 can be selected to work individually or collaboratively according to actual operational needs. This not only enhances the continuity and stability of cable traction and tensioning but also helps to cope with complex working conditions such as double-cable laying, splicing, or high-tension operations. The starboard cable water inlet trough 412 located at the stern is connected to the adjacent cable tensioner through the main cable channel, allowing the cable to be smoothly guided to the seabed after tensioning, ensuring the smoothness and controllability of the cable laying process. In addition, during double-cable laying or double-cable splicing, the two starboard cable tensioners 411 in the starboard work line 400 can be used in parallel. Specifically, the starboard cable tensioner 411 is equipped with a tracked tensioner 414 and a support roller. The two starboard cable tensioners 411 can accommodate two cables passing through in parallel at the same time. Each starboard cable tensioner 411 clamps one cable through the tracked tensioner 414 and supports the other cable through the support roller, thereby ensuring that the two cables do not interfere with each other and are subjected to balanced force during tensioning, transportation and water entry.

[0074] like Figure 2 and Figure 3 As shown, the starboard auxiliary operation line 420 includes: a starboard cable auxiliary channel 421, which is arranged along the length of the hull 100. One end of the stern turning operation channel 600 passes through the starboard main operation line 410 and is connected to the end of the starboard cable auxiliary channel 421 away from the cable storage turntable 200.

[0075] In this embodiment, the starboard auxiliary working line 420 is connected to the stern turning working channel 600. Specifically, the cable led from the cable storage turntable 200, after being guided by the cable guiding mechanism 700, can first enter the starboard cable auxiliary channel 421, and then further enter the port working line 300 through the stern turning working channel 600, and then enter the starboard main working line 410 from the port working line 300 through the bow turning working channel 500. This provides a stable channel for the orderly delivery of cables, and also provides spatial support for the switching of cables between different working lines.

[0076] like Figure 2 and Figure 3As shown, the multi-functional cable-laying system also includes a port-side cable traction winch 800 and a starboard-side cable traction winch 900. The port-side cable traction winch 800 is located between the port-side working line 300 and the cable storage turntable 200, and is used to tow the cable on the seabed along the port-side working line 300 to the cable splicing room 310. The starboard-side cable traction winch 900 is located between the starboard-side main working line 410 and the cable storage turntable 200, and is used to tow the cable on the seabed along the starboard-side main working line to the starboard-side cable tensioner 411. ， The cable is then pulled by the starboard cable tensioner 411 through the bow turning work passage to the cable splicing room.

[0077] In this embodiment, by setting up a port-side cable traction winch 800 and a starboard-side cable traction winch 900, cables can be retrieved from the seabed and guided to the cable splicing room 310. Specifically, the port-side cable traction winch 800 and the starboard-side cable traction winch 900 are respectively arranged at the front end of the port-side working line 300 and the starboard-side main working line 410, and can be selectively activated according to operational needs to achieve smooth traction and guidance of the submarine cable on the corresponding working line. During cable splicing operations, the power traction of the port-side cable traction winch 800 and the starboard-side cable traction winch 900 ensures that the end of the cable to be spliced ​​is accurately and stably delivered to the cable splicing room 310, thereby improving splicing accuracy and operational efficiency.

[0078] like Figure 2 and Figure 5 As shown, the second port side cable channel 302 includes multiple single cable channel idler brackets 101 connected end to end in sequence; the bow turning operation channel 500, the first port side cable channel 301, the starboard side main cable channel 413, the starboard side auxiliary cable channel 421 and the stern turning operation channel 600 all include multiple double cable channel idler brackets 101 connected end to end in sequence; the double cable channel idler bracket 101 is formed by splicing two single cable channel idler brackets 101.

[0079] In this embodiment, since the second port side cable channel 302 only needs to accommodate a single cable, it includes multiple single cable channel idler roller supports 101 connected end-to-end. By setting multiple single cable channel idler roller supports 101 connected end-to-end in the second port side cable channel 302, the single cable can be supported and guided, avoiding cable damage caused by suspension, bending, or uneven tension. The bow turning operation channel 500, the first port side cable channel 301, the starboard main cable channel 413, the starboard auxiliary cable channel 421, and the stern turning operation channel 600 require dual-cable operations, therefore, dual-cable channel idler roller supports 101 are used. This allows for simultaneous parallel transport of two cables in each channel, meeting various operational requirements such as synchronous laying and splicing of dual cables. Specifically, the single cable channel idler roller support 101 includes: a support 101, two lateral idler rollers 102, and a bottom idler roller 103. The support bracket 101 has a receiving groove at its top for cable passage, with an open top. The support is positioned opposite each other on the side wall of the receiving groove. A bottom roller 103 is located at the bottom of the receiving groove. The dual-cable-channel roller support bracket 101 is formed by splicing two single-cable-channel roller supports 101. By separately setting two side rollers 102 and a bottom roller 103, the cable can be effectively supported and guided. The flexible structural design facilitates assembly and adjustment according to actual operating conditions, effectively improving the versatility and maintainability of the channel system.

[0080] like Figure 2 , Figure 3 and Figure 5 As shown, the multi-functional cable-laying system also includes: a U-shaped frame 110, a U-shaped frame track 120, and a gantry 130. Among them, as... Figure 4 As shown, the U-shaped frame 110 is correspondingly positioned above the bow turning operation channel 500. Rollers 111 and guide wheels 112 are provided at the bottom of the U-shaped frame 110. A cable tray 113 for supporting cables is provided on the side of the U-shaped frame 110 facing the cable storage turntable 200. The U-shaped frame track 120 is located between the port side operation line 300 and the starboard side operation line 400, and is arranged along the length of the hull 100. The U-shaped frame 110 is tumblingly connected to the U-shaped frame track 120 via rollers. The guide wheels of the U-shaped frame 110 roll along the side of the U-shaped frame track 120, providing guidance for the U-shaped frame 110 and preventing it from detaching from the U-shaped frame track 120. The gantry 130 is located at the stern of the hull 100, and multiple pulleys 131 are sequentially arranged on the gantry 130 along the width direction of the hull 100. The bottom of the gantry 130 can be hinged to the hull 100, and the gantry 130 can swing back and forth between the hull 100 and the sea surface through a drive mechanism such as a hydraulic push rod.

[0081] In this embodiment, the U-shaped frame 110 is positioned above the bow turning operation channel 500 to support the cable to be lowered during cable repair or splicing operations, and to smoothly guide the cable along the U-shaped frame track 120 to the stern for subsequent lowering to the seabed. To ensure that the U-shaped frame 110 does not interfere with the structures on the port side operation line 300 during sliding, the cable splicing room 310 has an opening on the side facing the U-shaped frame 110, thereby providing passage space for the U-shaped frame 110 and the cable it carries. Meanwhile, the port side cable tensioner 320 and the two starboard side cable tensioners 411 also have openings on the side facing the U-shaped frame 110. Specifically, the port side cable tensioner 320 and the two starboard side cable tensioners 411 each include a base and two vertically opposite tracked tensioners 414 located on the base. An opening for cable passage is provided between the two tracked tensioners 414, and the upper tracked tensioner 414 is connected to a hydraulic cylinder 415. Taking the starboard side cable tensioner 411 as an example, as... Figure 6 As shown, the size of the opening can be adjusted by extending or retracting the hydraulic cylinder 415. When the U-shaped frame 110 is sliding, the hydraulic cylinder 415 can be extended to move the upper tracked tensioner 414 to its highest position, thereby making the opening height sufficient to accommodate the components of the U-shaped frame 110. This ensures that the U-shaped frame 110 can smoothly pass through the tensioner area without jamming when sliding along the track. In addition, the U-shaped frame 110 slides along the track under the weight of the cable. During the sliding process, the U-shaped frame 110 is pulled by the port cable traction winch 800 or the starboard cable traction winch 900 through a wire rope to prevent the U-shaped frame 110 from going out of control during the sliding process. After reaching the stern position, the wire rope of the cable traction winch can be untied, and the wire rope of the cable traction winch on the other working line can be passed through the pulley 131 on the gantry 130 and connected to the U-shaped frame 110. Subsequently, the gantry 130 swung towards the sea surface via a hydraulic push rod, and the cable traction winch slowly lowered the wire rope, so that the U-shaped frame 110 and the maintenance cable it carried were smoothly lowered to the seabed, thus achieving the successful completion of the cable maintenance work.

[0082] The following is an exemplary description of the specific usage process of the multifunctional cable laying system according to the present invention.

[0083] like Figure 7As shown, during port-side single-cable laying operations, the cable output from the cable storage turntable 200 can be pulled to the port-side work line 300 via the cable guide mechanism 700 located on the port side. Under the action of the port-side cable tensioner 320, the cable is transported through the second port-side cable channel 302 to the port-side cable inlet trough 330, and then slid down to the seabed along the port-side cable inlet trough 330, thus realizing the port-side single-cable laying operation. Of course, the cable output from the port-side cable tensioner 320 can also pass through the burial plow on the gantry 130. After the burial plow is lowered by the gantry 130, the burial plow is towed by a towing winch to achieve simultaneous cable laying and burial operations, which will not be elaborated here.

[0084] like Figure 8 As shown, during port-side single-cable splicing operations, the cable to be spliced ​​can be towed from the seabed to the cable splicing room 310 via the port-side cable traction winch 800. Then, the cable output from the cable storage turntable 200 is pulled to the cable splicing room 310 via the cable guide mechanism 700 located on the port side, where the cable joint is connected. After splicing, the cable is transported through the second port-side cable channel 302 to the port-side cable inlet channel 330 under the action of the port-side cable tensioner 320, and then slid down to the seabed along the port-side cable inlet channel 330.

[0085] like Figure 9 As shown, during starboard single-cable laying operations, the cable output from the cable storage turntable 200 can be pulled to the starboard cable auxiliary channel 421 via the cable guide mechanism 700 located on the starboard side. Then, it sequentially passes through the stern turning operation channel 600, the port side cable tensioner 320, the cable splicing room 310, and the bow turning operation channel 500 before entering the starboard main operation line 410. Under the action of the starboard cable tensioner 411, the cable is transported through the starboard main cable channel 413 to the starboard cable entry channel 412, and slides down to the seabed along the starboard cable entry channel 412, thus achieving starboard single-cable laying operations. Alternatively, the cable output from the starboard cable tensioner 411 can also pass through the burial plow on the gantry 130. After the burial plow is lowered by the gantry 130, a towing winch can tow the burial plow to achieve simultaneous cable laying and burial operations; this will not be elaborated further here.

[0086] like Figure 10As shown, during starboard single-cable splicing operations, the cable output from the cable storage turntable 200 can be pulled to the starboard cable auxiliary channel 421 via the cable guide mechanism 700 located on the starboard side. Then, it passes through the stern turning operation channel 600 and the port cable tensioner 320 before entering the cable splicing room 310. Next, the cable to be spliced ​​is dragged from the seabed to the starboard cable main channel 413 via the starboard cable traction winch 900. Under the action of the starboard cable tensioner 411, it passes through the bow turning operation channel 500 to reach the cable splicing room 310, where the cable joint is connected. After the splicing is completed, the cable will be sequentially transferred from the cable splicing room 310 to the bow turning operation channel 500 and the starboard main operation line 410 under the action of the port cable tensioner 320. Under the action of the starboard cable tensioner 411, the cable will be transported through the starboard cable main channel 413 to the starboard cable inlet channel 412 and slid down to the seabed along the starboard cable inlet channel 412.

[0087] like Figure 11 As shown, when carrying out the double cable laying operation on the port and starboard sides, the cable output from the cable storage turntable 200 can be pulled to the port working line 300 by the cable guide mechanism 700 set on the port side. Under the action of the port cable tensioner 320, the cable is transported through the second port cable channel 302 to the port cable inlet channel 330 and slid down to the seabed along the port cable inlet channel 330. Meanwhile, the cable output from the cable storage turntable 200 can be pulled to the starboard cable auxiliary channel 421 by the cable guide mechanism 700 set on the starboard side. Then, it passes through the stern turning operation channel 600, the port cable tensioner 320, the cable splicing room 310 and the bow turning operation channel 500 in sequence before entering the starboard main operation line 410. Under the action of the starboard cable tensioner 411, the cable is transported through the starboard main cable channel 413 to the starboard cable inlet channel 412 and slides down to the seabed along the starboard cable inlet channel 412, thus realizing the simultaneous laying of two cables in different channels on the port and starboard sides.

[0088] like Figure 12As shown, during port and starboard cable splicing operations, the cables to be spliced ​​can be towed from the seabed to the cable splicing room 310 via the port cable traction winch 800. Then, the cable output from the cable storage turntable 200 is pulled to the cable splicing room 310 via the cable guide mechanism 700 on the port side, where the cable joints are connected. Simultaneously, the cable output from the cable storage turntable 200 is pulled to the starboard cable auxiliary channel 421 via the cable guide mechanism 700 on the starboard side, passing through the stern turning operation channel 600 and the port cable tensioner 320 before entering the cable splicing room 310. Then, the cables to be spliced ​​from the seabed are towed to the starboard cable main channel 413 via the starboard cable traction winch 900, and under the action of the starboard cable tensioner 411, they pass through the bow turning operation channel 500 to reach the cable splicing room 310, where the cable joints are connected. After completing the port and starboard cable splicing operation, one cable can be transported through the second port cable channel 302 to the port cable inlet 330 under the action of the port cable tensioner 320, and then slide down to the seabed along the port cable inlet 330. At the same time, the other cable can enter the bow turning operation channel 500 and the starboard main operation line 410 sequentially from the cable splicing room 310 under the action of the port cable tensioner 320. Under the action of the starboard cable tensioner 411, the cable is transported through the starboard main cable channel 413 to the starboard cable inlet 412, and then slide down to the seabed along the starboard cable inlet 412.

[0089] like Figure 13 As shown, during the simultaneous laying of two cables in the same trench, the two starboard cable tensioners 411 operate in parallel. Specifically, the port-side cable guide mechanism 700 and the starboard-side cable guide mechanism 700 can respectively pull the two cables output from the cable storage turntable 200 to the starboard auxiliary working line 420, where they are transported by two channels on the starboard auxiliary cable channel 421. Then, they pass sequentially through the stern turning working channel 600, the port-side cable tensioner 320, the cable splicing room 310, and the bow turning working channel 500 before entering the starboard main working line 410. At this point, the two starboard cable tensioners 411 can simultaneously accommodate two cables passing through in parallel. Each starboard cable tensioner 411 clamps one cable and supports the other cable via its own support roller. Thus, under the action of the starboard cable tensioners 411, the two cables can be transported through the starboard cable main channel 413 to the starboard cable inlet channel 412 and slid down to the seabed along the starboard cable inlet channel 412, thereby achieving simultaneous laying of two cables in the same trench. Of course, the two cables output from the starboard cable tensioners 411 can also pass through the burial plow on the gantry 130 respectively. After the burial plow is lowered by the gantry 130, the burial plow is towed by a towing winch to achieve simultaneous laying and burial of cables, which will not be elaborated here.

[0090] like Figure 14As shown, during the double-cable splicing operation in the same trench, the port-side cable guide mechanism 700 and the starboard-side cable guide mechanism 700 can respectively pull the two cables output from the cable storage turntable 200 to the starboard auxiliary operation line 420. They are then transported through two channels on the starboard cable auxiliary channel 421, and subsequently pass through the stern turning operation channel 600 and the port-side cable tensioner 320 before entering the cable splicing room 310. Simultaneously, the port-side cable traction winch 800 and the starboard-side cable traction winch 900 drag the two cables to be spliced ​​on the seabed to the starboard-side main cable channel 413. Under the action of the starboard-side cable tensioner 411, they pass through the bow turning operation channel 500 to reach the cable splicing room 310, where the connection of the two cable joints is completed. After completing the double cable splicing operation in the same trench, the two cables can enter the bow turning operation channel 500 and the starboard main operation line 410 in sequence from the cable splicing room 310 under the action of the port side cable tensioner 320. Under the action of the starboard cable tensioner 411, the cables are transported through the starboard main cable channel 413 to the starboard cable inlet channel 412 and slide down to the seabed along the starboard cable inlet channel 412.

[0091] like Figure 15 and Figure 16 As shown, during cable repair work, a section of the damaged cable near the point of damage can be cut off and discarded. Then, one end of the cable to be repaired is dragged to the port side work line 300 via the port side cable traction winch 800, passes through the port side cable tensioner 320, and enters the cable splicing room 310. Next, the new cable output from the cable storage turntable 200 is pulled to the cable splicing room 310 via the cable guide mechanism 700 located on the port side. In the cable splicing room 310, the connection between one end of the cable to be repaired and the end of the new cable is completed. After splicing, the cable is transported through the second port side cable channel 302 to the port side cable inlet 330 under the action of the port side cable tensioner 320, and slides down to the seabed along the port side cable inlet 330. Then, the other end of the cable to be repaired is dragged to the starboard side cable main channel 413 via the starboard side cable traction winch 900, and reaches the cable splicing room 310 via the bow turning work channel 500 under the action of the starboard side cable tensioner 411. At this point, the new cable output from the cable storage turntable 200 can be cut off, and the other end of the cable to be repaired can be connected to the other end of the new cable output from the cable storage turntable 200 in the cable splicing room 310. Thus, the two cut cable sections can be reconnected.

[0092] like Figure 17 and Figure 18As shown, after reconnecting the two severed cable sections, the cable on the bow turning work channel 500 can be moved to the cable tray 113 on the U-shaped frame 110. Then, the height of the openings of the port side cable tensioner 320 and the starboard side cable tensioner 411 facing the U-shaped frame 110 is adjusted to prevent interference with the U-shaped frame 110 during its sliding. Under the weight of the cable, the U-shaped frame 110 slides along the U-shaped frame track 120 to the stern. During the sliding process, the U-shaped frame 110 can be pulled by the cable traction winch 800 on the port side via a wire rope to prevent the U-shaped frame 110 from going out of control during the sliding process. After the U-shaped frame 110 has slid to the stern position, the wire rope of the port side cable traction winch 800 is released, and the wire rope of the starboard side cable traction winch 900 is passed through the pulley 131 of the gantry 130 and connected to the U-shaped frame 110. Then, by using hydraulic push rods to push the gantry 130 to swing towards the sea surface, and cooperating with the starboard cable traction winch 900 to lower the wire rope, the U-shaped frame 110 and the repaired cable on it are slowly lowered to the seabed to complete the cable repair work.

[0093] The multifunctional cable-laying system of the present invention, by setting up a port side work line 300 and a starboard side main work line 410 and a starboard side auxiliary work line 420 respectively, and setting up a bow turning work channel 500 between the port side work line 300 and the starboard side main work line 410, and a stern turning work channel 600 between the port side work line 300 and the starboard side auxiliary work line 420, can realize cable-laying operations, splicing operations and maintenance operations through the port side work line 300 or in conjunction with the starboard side main work line 410 and the starboard side auxiliary work line 420, effectively improving the equipment integration, thereby improving cable-laying efficiency and operation and maintenance efficiency.

[0094] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0095] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional cable laying system, characterized in that, include: hull; A cable storage turntable, located on the hull and near the middle of the hull, is used to store cables; The port side work line is set along the length of the hull on the port side of the hull. The starboard work line includes a main starboard work line and a secondary starboard work line arranged side by side along the length of the hull on the starboard side of the hull. The secondary starboard work line is located on the side of the main starboard work line away from the port side work line. The main starboard work line includes two starboard cable tensioners, which are arranged sequentially along the length of the hull. The bow turning operation channel is connected at one end to the input end of the port side operation line and at the other end to the input end of the starboard side main operation line. The stern turning operation channel is connected at one end to the port side operation line and at the other end to the starboard side auxiliary operation line away from the cable storage turntable. The port side operation line includes a cable splicing room, which is located between the bow turning operation channel and the stern turning operation channel. A cable guide mechanism, located between the bow turning operation channel and the cable storage turntable, is used to guide the cable output from the cable storage turntable to the port side operation line and / or the starboard side auxiliary operation line; A port side cable traction winch is located between the port side working line and the cable storage turntable. The port side cable traction winch is used to drag the cable on the seabed along the port side working line to the cable splicing room. A starboard cable traction winch is located between the starboard main working line and the cable storage turntable. The starboard cable traction winch is used to tow the cable on the seabed along the starboard main working line to the starboard cable tensioner, and then the starboard cable tensioner pulls the cable through the bow turning working channel to the cable splicing room. The starboard auxiliary operation line includes a starboard cable auxiliary channel, which is arranged along the length of the hull. One end of the stern turning operation channel passes through the starboard main operation line and is connected to the end of the starboard cable auxiliary channel away from the cable storage turntable.

2. The multifunctional cable laying system according to claim 1, characterized in that, The cable storage turntable can be a single-cable turntable or a double-cable turntable; The dual-cable turntable includes an inner turntable and an outer turntable arranged concentrically. Each of the inner and outer turntables stores a roll of cable and is driven separately by a corresponding drive mechanism. There are two cable guiding mechanisms. One cable guiding mechanism is used to pull the cable from the outer turntable to the port working line or the starboard auxiliary working line, and the other cable guiding mechanism is used to pull the cable from the inner turntable to the starboard auxiliary working line.

3. The multifunctional cable laying system according to claim 2, characterized in that, Each of the cable guiding mechanisms includes: A cable guide frame, wherein a roller channel is provided inside the cable guide frame; A cable pulling machine, mounted on the cable guide frame, is used to pull cables.

4. The multifunctional cable laying system according to claim 1, characterized in that, The port side work line includes: A port-side cable tensioner is located between the cable splicing room and the stern turning operation channel, and a first port-side cable channel is provided between the cable splicing room and the bow turning operation channel; A port side cable inlet is provided, which is located at the stern of the hull. A second port side cable channel is provided between the port side cable tensioner and the port side cable inlet.

5. The multifunctional cable laying system according to claim 4, characterized in that, The main working route on the starboard side includes: A starboard cable inlet is provided at the stern of the hull, and a starboard cable main channel is provided between the starboard cable inlet and the nearby starboard cable tensioner.

6. The multifunctional cable laying system according to claim 5, characterized in that, The second port side cable channel includes multiple single cable channel roller supports connected end to end in sequence; The bow turning operation channel, the first port side cable channel, the starboard side main cable channel, the starboard side auxiliary cable channel, and the stern turning operation channel all include multiple double cable channel idler brackets connected end to end in sequence; The dual-cable-channel idler bracket is formed by splicing together two single-cable-channel idler brackets.

7. The multifunctional cable laying system according to claim 6, characterized in that, The single cable channel idler bracket includes: The bracket has a receiving groove at its top for the passage of cables; Two lateral rollers are disposed opposite each other on the side wall of the receiving groove; A bottom roller is disposed at the bottom of the receiving groove; The top of the receiving groove is open.

8. The multifunctional cable laying system according to claim 1, characterized in that, Also includes: The U-shaped frame is correspondingly installed above the bow turning operation channel; The U-shaped frame track is located between the port side work line and the starboard side work line and is set along the length of the hull. The U-shaped frame is rotatably connected to the U-shaped frame track by rollers. A gantry is installed at the stern of the hull, and multiple pulleys are sequentially arranged on the gantry along the width direction of the hull.

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