A deck-hung installation for deep water umbilical cables

Abstract

The application discloses a deck suspension facility for deep water umbilical cable installation, which comprises a main body structure, a top layer platform arranged at the top end of the main body structure, a fixed suspension table fixedly connected to the U-shaped opening half-circular end of the top layer platform, a movable suspension table arranged at the half-circular arc side of the fixed suspension table, a movable clasp ring arranged on the upper plate surface of the fixed suspension table and the movable suspension table, a detachable operation platform arranged on the side of the movable suspension table away from the half-circular arc, a rotary hanger arranged at the end of the top layer platform close to the straight ladder, a first U-shaped support structure arranged at the middle position of the main body structure, and a second U-shaped support structure arranged below the first U-shaped support structure of the main body structure. The application can temporarily vertically suspend the umbilical cable terminal, so that the installation of the umbilical cable terminal does not need to turn over and enter and exit the cabin, and the over-bending risk of the deep water umbilical cable terminal during the entering and exiting cabin process is avoided.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and in particular to a deck suspension system for deep-water umbilical cable installation. Background Technology

[0002] Currently, deep-water umbilical cables are submersible cables that provide power, hydraulic channels, chemical reagents, and data transmission for underwater production systems. Dynamic umbilical cable terminals consist of a towing head, an anti-bend device, and an anti-bend device quick-connect plug. They are characterized by their large size and heavy weight. Existing technology involves hoisting them into the ship's hold before transport at sea, and then removing them from the hold for underwater installation once the vessel arrives at the work area. The process of hoisting and removing the umbilical cable terminal from the hold is difficult to control, time-consuming, and carries the risk of cable breakage due to bending. Summary of the Invention

[0003] The purpose of this invention is to provide a deck suspension facility for deep-water umbilical cable installation, which can temporarily suspend the umbilical cable terminal vertically, so that the installation of the umbilical cable terminal does not involve the process of flipping in and out of the cabin, thus avoiding the risk of bending during the process of deep-water umbilical cable terminal entering and leaving the cabin.

[0004] To achieve the objectives of this invention, a deck suspension system for deep-water umbilical cable installation is provided, comprising: a main structure; the main structure is welded from a combination of round pipes and I-beams; a top platform is provided at the top of the main structure; a U-shaped opening is provided on one long side of the top platform; first lifting lugs are provided at each of the four corners of the top platform; a fixed suspension platform is fixedly connected to the semi-circular end of the U-shaped opening of the top platform; a semi-circular arc is provided on the side of the fixed suspension platform near the U-shaped opening and fits into the U-shaped opening; a movable suspension platform is provided on the semi-circular side of the fixed suspension platform; a semi-circular arc is provided on the side of the movable suspension platform near the fixed suspension platform and fits into the semi-circular arc of the fixed suspension platform. The circular structure at the umbilical cable terminal; both the fixed suspension platform and the movable suspension platform are equipped with matching movable retaining rings on their upper surfaces; a detachable operating platform is provided on the side of the movable suspension platform away from the semicircular arc; anti-collision structures are provided on both sides of the U-shaped opening; an arc-shaped guide structure is provided at the connection between the U-shaped opening and the top platform; a straight ladder is provided on one side of the main structure; a rotating hanger is provided at the end of the top platform near the straight ladder; a first U-shaped support structure is provided in the middle of the main structure; a second U-shaped support structure is provided on the main structure directly below the first U-shaped support structure; an observation platform is provided on the parallel plane of the main structure and the second U-shaped support structure, and the observation platform is fixedly connected to the circular tube.

[0005] As a preferred embodiment of the present invention, the circle formed by the fixed suspension platform and the movable suspension platform is vertically coaxial with the first U-shaped support structure and the second U-shaped support structure.

[0006] As a preferred embodiment of the present invention, the rotating hanger includes a sleeve; the sleeve is fitted with an L-shaped pipe frame; the L-shaped pipe frame and the pipe section parallel to the top platform are interspersed with limit pipes and have third lifting lugs at both ends.

[0007] As a preferred embodiment of the present invention, the two movable retaining rings are semi-circular rings with first ear plates on both outer edges; the first ear plates are provided with bolt holes and through which bolts pass.

[0008] As a preferred embodiment of the present invention, the four corners of the movable suspension platform are provided with second lifting lugs.

[0009] As a preferred embodiment of the present invention, the detachable operating platform is provided with third lifting lugs at the four corners of the plate.

[0010] As a preferred embodiment of the present invention, both the fixed suspension platform and the movable suspension platform are provided with two first clamping plates; the first clamping plates are adapted to the outer ring edge of the movable clamping ring.

[0011] As a preferred embodiment of the present invention, the movable suspension platform is provided with a second card plate on each of its two short edges.

[0012] As a preferred embodiment of the present invention, the detachable operating platform is provided with a second ear plate on each of its two short edges, and the second ear plate is fixedly connected to the top platform.

[0013] As a preferred embodiment of the present invention, a first protective railing is provided around the top platform except for the U-shaped opening; a second protective railing is provided around the observation platform.

[0014] Compared with the prior art, the present invention provides a deck suspension system for deep-water umbilical cable installation, which has the following advantages:

[0015] This invention allows for the temporary vertical suspension of umbilical cable terminals, eliminating the need for flipping the terminals during entry and exit from the cabin, reducing construction steps, avoiding the bending risks associated with deep-water umbilical cable terminals during entry and exit, and saving cabin space to store more umbilical cables, thus reducing the number of voyages. The temporary suspension of the umbilical cable terminals also eliminates the need for additional welding work, further reducing construction steps and shortening construction time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the umbilical cable terminal structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention without an umbilical cable terminal;

[0018] Figure 3 This is a schematic diagram of the top structure of the present invention. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the top structure of the present invention. Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the top structure of the present invention. Figure 3 .

[0021] 1 is the main structure, 2 is the second U-shaped support structure, 3 is the first U-shaped support structure, 4-1 is the first lifting lug, 5 is the observation platform, 6 is the straight ladder, 7 is the top platform, 8 is the rotating hanger, 8-1 is the sleeve, 8-2 is the L-shaped pipe rack, 8-3 is the limiting pipe, 8-4 is the third lifting lug, 9 is the fixed suspension platform, 10 is the mobile suspension platform, 11 is the mobile retaining ring, 12-1 is the first ear plate, 12-2 is the second ear plate, 13-1 is the first retaining plate, 13-2 is the second retaining plate, 14 is the detachable operating platform, 15 is the arc-shaped guide structure, 16 is the anti-collision structure, 17-1 is the first guardrail, 17-2 is the second guardrail, 18 is the umbilical cable terminal, and 19 is the umbilical cable. Detailed Implementation

[0022] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-5This invention provides a deck suspension system for deep-water umbilical cable installation, comprising: a main structure 1; the main structure 1 is welded from a circular tube and an I-beam; a top platform 7 is provided at the top of the main structure 1; a U-shaped opening is provided on one long side of the top platform 7; a first lifting lug 4-1 is provided at each of the four corners of the top platform 7; a fixed suspension platform 9 is fixedly connected to the semi-circular end of the U-shaped opening of the top platform 7; a semi-circular arc is provided on the side of the fixed suspension platform 9 near the U-shaped opening and fits against the U-shaped opening; a movable suspension platform 10 is provided on the semi-circular side of the fixed suspension platform 9; a semi-circular arc is provided on the side of the movable suspension platform 10 near the fixed suspension platform 9 and together with the semi-circular arc of the fixed suspension platform 9, forms a circle adapted to the umbilical cable terminal. Both the fixed suspension platform 9 and the movable suspension platform 10 are equipped with matching movable retaining rings 11 on their upper surfaces; the movable suspension platform 10 is equipped with a detachable operating platform 14 on the side away from the semi-circular arc; anti-collision structures 16 are provided on both sides of the U-shaped opening; an arc-shaped guide structure 15 is provided at the connection between the U-shaped opening and the top platform 7; a straight ladder 6 is provided on one side of the main structure 1; a rotating hanger 8 is provided at the end of the top platform 7 near the straight ladder 6; a first U-shaped support structure 3 is provided in the middle of the main structure 1; a second U-shaped support structure 2 is provided directly below the first U-shaped support structure 3 on the main structure 1; an observation platform 5 is provided on the parallel plane of the main structure 1 and the second U-shaped support structure 2, and the observation platform 5 is fixedly connected to the circular tube.

[0024] In one embodiment of the present invention, the circle formed by the fixed suspension platform 9 and the movable suspension platform 10 is vertically coaxial with the first U-shaped support structure 3 and the second U-shaped support structure 2.

[0025] In one embodiment of the present invention, the rotating hanger 8 includes a sleeve 8-1; the sleeve 8-1 is fitted with an L-shaped pipe frame 8-2; the L-shaped pipe frame 8-2 and the top platform 7 have pipe segments interspersed with limit pipes 8-3 and third lifting lugs 8-4 at both ends.

[0026] In one embodiment of the present invention, the two movable retaining rings 11 are semi-circular rings and each of the two outer edges is provided with a first ear plate 12-1; the first ear plate 12-1 is provided with a bolt hole and a bolt passes through it.

[0027] In one embodiment of the present invention, the four corners of the upper plate of the movable suspension platform 10 are provided with second lifting lugs 4-2.

[0028] In one embodiment of the present invention, the detachable operating platform 14 is provided with third lifting lugs 4-3 at the four corners of the upper plate.

[0029] In one embodiment of the present invention, both the fixed suspension platform 9 and the upper plate of the movable suspension platform 10 are provided with two first clamping plates 13-1; the first clamping plates 13-1 are adapted to the outer ring edge of the movable clamping ring 11.

[0030] In one embodiment of the present invention, the movable suspension platform 10 is provided with a second card plate 13-2 on both short edges.

[0031] In one embodiment of the present invention, the detachable operating platform 14 is provided with a second ear plate 12-2 on each of its two short edges, and the second ear plate 12-2 is fixedly connected to the top platform 7.

[0032] In one embodiment of the present invention, a first protective railing 17-1 is provided around the top platform 7 except for the U-shaped opening; a second protective railing 17-2 is provided around the observation platform 5.

[0033] The specific operation process of this invention is as follows:

[0034] Connect the lifting slings to the first lifting lug 4-1 on the top platform 7, and lift the deck suspension facility for the deep-water umbilical cable installation to the designed position at the hatch, ensuring that there is no bend in the connection between the suspension position of the umbilical cable terminal 18 and the connection section of the umbilical cable 19 inside the cabin, and weld and fix the bottom round tube of the main structure 1 to the ship deck.

[0035] The movable suspension platform 10, the movable retaining ring 11, the first retaining plate 13-1, the second retaining plate 13-2 and the detachable operating platform 14 are placed on the top platform 7 near the rotating hanger 8.

[0036] The umbilical cable terminal 18 is hoisted to the vicinity of the arc-shaped guide structure 15. The umbilical cable terminal 18 slowly enters the U-shaped opening. The crane continues to move the umbilical cable terminal 18 closer to the semi-circular wall inside the opening until the umbilical cable terminal 18 touches the semi-circular wall.

[0037] The movable suspension platform 10 is installed in the design position using the rotating hanger 8 and aligned with the fixed suspension platform 9. Bolts are inserted into the bolt holes of the movable suspension platform 10 to connect it to the top platform 7. The second clamping plate 13-2 is placed in the design position and spot welded to the top platform plate. The second clamping plate 13-2 clamps the movable suspension platform 10.

[0038] The detachable operating platform 14 is installed in the designed position using the rotating hanger 8, adjacent to the movable suspension platform 10. Bolts are inserted into the second ear plate 12-2 to connect the detachable operating platform 14 to the top platform 7.

[0039] The crane slowly lowers the umbilical cable terminal 18 until the slot of the umbilical cable terminal 18 is at the same height as the suspension platform;

[0040] Insert two movable retaining rings 11 into the slots of the umbilical cable terminal 18 until the semi-circular holes of the movable retaining rings 11 are fully in contact with and hold the umbilical cable terminal 18 in place. Install bolts into the first ear plate 12-1 to connect the two movable retaining rings 11. Place the first retaining plate 13-1 in the designed position and spot weld it to the fixed suspension platform 9 and the movable suspension platform 10 so that the first retaining plate 13-1 holds the two movable retaining rings 11 in place.

[0041] On the observation platform 5, check whether the umbilical cable terminal 18 is close to the second U-shaped support structure 2 and the first U-shaped support structure 3. The operator then binds and fixes the umbilical cable terminal 18 on the observation platform 5.

[0042] The crane is lowered and the rigging is removed, at which point the umbilical cable terminal is suspended.

[0043] After the vessel arrives at the operating area, it is ready to install the umbilical cable 19 and connect the lifting sling of the umbilical cable terminal 18 to the crane.

[0044] The operator cuts and removes the first clamping plate 13-1 and the second clamping plate 13-2, removes the bolts of the first ear plate 12-1 and the second ear plate 12-2, and the crane slowly lifts it up to remove the two movable retaining rings 11.

[0045] The detachable operating platform 14 and the movable suspension platform 10 are removed using the rotating hanger 8;

[0046] After passing the anti-collision structure 16 and the arc-shaped guide structure 15, the umbilical cable terminal 18 leaves. At this time, the umbilical cable terminal 18 is released from suspension and the umbilical cable 19 is installed.

[0047] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A deck suspension system for deep-water umbilical cable installation, characterized in that, include: Main structure (1); The main structure (1) is welded together from round tubes and I-beams; The top of the main structure (1) is provided with a top platform (7); A U-shaped opening is provided on one long side of the top platform (7); The top platform (7) is provided with a first lifting lug (4-1) at each of the four corners; A fixed suspension platform (9) is fixedly connected to the semi-circular end of the U-shaped opening of the top platform (7); A semi-circular arc is provided on the side of the fixed suspension platform (9) near the U-shaped opening and fits into the U-shaped opening; A movable suspension platform (10) is provided on the semi-circular side of the fixed suspension platform (9); A semi-circular arc is provided on the side of the movable suspension platform (10) near the fixed suspension platform (9) and together with the semi-circular arc of the fixed suspension platform (9) to form a circle adapted to the umbilical cable terminal; Both the fixed suspension platform (9) and the upper plate of the movable suspension platform (10) are provided with two first clamping plates (13-1); both the fixed suspension platform (9) and the upper plate of the movable suspension platform (10) are provided with matching movable retaining rings (11); the first clamping plates (13-1) are adapted to the outer ring edge of the movable retaining rings (11); the two movable retaining rings (11) are semi-circular rings and both ends of the outer edge are provided with first ear plates (12-1); the movable suspension platform (10) is provided with a detachable operating platform (14) on the side away from the semi-circular arc; the U-shaped opening is provided with anti-collision structures (16) on both sides. An arc-shaped guide structure (15) is provided at the connection between the U-shaped opening and the top platform (7); a straight ladder (6) is provided on one side of the main structure (1); a rotating hanger (8) is provided at one end of the top platform (7) near the straight ladder (6); a first U-shaped support structure (3) is provided in the middle of the main structure (1); a second U-shaped support structure (2) is provided directly below the first U-shaped support structure (3) of the main structure (1); the circle formed by the fixed suspension platform (9) and the movable suspension platform (10) is vertically coaxial with the first U-shaped support structure (3) and the second U-shaped support structure (2); An observation platform (5) is provided on the parallel plane of the main structure (1) and the second U-shaped support structure (2), and the observation platform (5) is fixedly connected to the circular tube; a first guardrail (17-1) is provided around the top platform (7) except for the U-shaped opening; a second guardrail (17-2) is provided around the observation platform (5).

2. The deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The rotating hanger (8) includes a sleeve (8-1); the sleeve (8-1) is fitted with an L-shaped pipe frame (8-2); the L-shaped pipe frame (8-2) is parallel to the top platform (7) and has a limit pipe (8-3) inserted between the pipe segments and the end of the pipe frame (8-2) and a third lifting lug (8-4) at both ends.

3. A deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The first ear plate (12-1) is provided with bolt holes and a bolt passes through it.

4. A deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The movable suspension platform (10) is provided with second lifting lugs (4-2) at the four corners of the upper plate.

5. A deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The detachable operating platform (14) is provided with third lifting lugs (4-3) at the four corners of the upper plate.

6. A deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The movable suspension platform (10) is equipped with a second card plate (13-2) on both short edges.

7. A deck suspension system for deep-water umbilical cable installation according to claim 1, characterized in that: The detachable operating platform (14) has a second ear plate (12-2) on each of its two short edges, and the second ear plate (12-2) is fixedly connected to the top platform (7).

Images