Submarine pipeline hoisting butt joint lifting appliance

Abstract

The utility model discloses a submarine pipeline lifting butt joint lifting appliance, which belongs to the field of submarine pipeline lifting and comprises a first lifting beam, a second lifting beam slidably mounted in the first lifting beam and a plurality of lifting lugs fixedly mounted on the first lifting beam and the second lifting beam and distributed in a linear array. A plurality of mounting frames distributed in a linear array are symmetrically arranged on the first hanging beam and the second hanging beam, adjusting blocks are slidably mounted in the mounting frames, and clamping rods are rotatably mounted on the adjusting blocks. The submarine pipeline hoisting butt-joint lifting appliance is simple in structure and convenient to use, the amount of seawater in the liquid storage tank can be adjusted by arranging the liquid storage tank and the limiting bolts and controlling the electric push rod, then the overall buoyancy is changed, the stability and accuracy in the butt-joint process are ensured, meanwhile, the distance between the clamping plates can be changed through movement of the adjusting blocks, and the butt-joint effect is improved. Therefore, the device adapts to pipelines with different pipe diameters, and the universality and applicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine pipeline hoisting, in particular to a submarine pipeline hoisting butt joint hoisting device. Background Art

[0002] Submarine pipelines are closed pipes that continuously transport large amounts of oil (gas) on the seabed. They are a major component of offshore oil (gas) field development and production systems, and are also the fastest, safest, most economical and reliable way to transport offshore oil and gas.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN213505558U discloses a submarine pipeline lifting and docking sling, which grasps two submarine pipelines respectively by opening and closing grasping at the bottom end of the first crossbeam and the bottom end of the second crossbeam, and then drives the main beam moving cylinder to perform the docking installation operation of the two submarine pipelines, which can realize the lifting and docking operations of the submarine pipelines, greatly improving the construction efficiency and safety of the submarine pipelines; however, in submarine operations, buoyancy is an important consideration, which will affect the posture stability of the pipeline and the sling. If there is no proper buoyancy control, the pipeline may rise or sink due to the buoyancy, causing the lifting and docking operations to become difficult or even fail.

[0004] Therefore, the utility model provides a submarine pipeline hoisting and docking lifting device to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a submarine pipeline hoisting and docking lifting device, aiming to solve the problems of the existing docking lifting device buoyancy being uncontrollable and the like in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submarine pipeline lifting and docking sling, comprising a lifting beam 1, a lifting beam 2 slidably installed in the lifting beam 1, and a plurality of lifting ears fixedly installed on the lifting beam 1 and the lifting beam 2 and distributed in a linear array, the lifting beam 1 and the lifting beam 2 are symmetrically provided with a plurality of mounting frames distributed in a linear array, an adjusting block is slidably installed in the mounting frame, a clamping rod is rotatably installed on the adjusting block, a clamping plate is fixedly installed at one end of the clamping rod away from the adjusting block, a plurality of fixing plates distributed in a linear array and adapted to the clamping plate are fixedly installed at one end of the lifting beam 1 and the lifting beam 2 away from the lifting ears, a support plate is fixedly installed on the adjusting block, and a driving mechanism for driving the clamping rod is provided on the support plate.

[0009] In order to solve the problem of overall buoyancy control of the device, a liquid storage tank is fixedly installed on the installation frame, a liquid outlet pipe is provided at one end of the liquid storage tank, a liquid inlet pipe is provided at one end of the liquid storage tank at a symmetrical position of the liquid outlet pipe, one-way valves with opposite flow directions are installed in the liquid outlet pipe and the liquid inlet pipe, and a pushing mechanism is provided in the liquid storage tank. The amount of seawater in the liquid storage tank can be adjusted through the pushing mechanism, and then the weight of the entire device can be adjusted to achieve buoyancy control.

[0010] Preferably, in order to solve the problem of adjusting buoyancy, the pushing mechanism includes an electric push rod fixedly installed in the liquid storage tank away from one end of the liquid outlet pipe and a piston plate fixedly installed at the telescopic end of the electric push rod and adapted to the liquid storage tank. The cooperation between the electric push rod and the piston plate can change the amount of seawater in the liquid storage tank, thereby achieving the adjustment of buoyancy.

[0011] Preferably, in order to solve the problem of clamping different pipes, a limiting mechanism is provided between the adjusting block and the mounting frame. The limiting mechanism can be used to adjust the position of the adjusting block, thereby enabling the clamping of different pipes by the clamping plate.

[0012] Preferably, in order to solve the adjustment problem of the adjustment block, the limiting mechanism includes a limiting groove provided on the adjustment block and the installation frame and a limiting bolt screwed in the limiting groove. Through the use of the limiting groove and the limiting bolt, the adjustment block can be fixed at different positions in the installation frame.

[0013] Preferably, in order to solve the problem of the rotation of the clamping rod, the driving mechanism includes a hydraulic push rod fixedly mounted on the support plate, a slide groove provided on the clamping rod, and a slide plate slidably mounted in the slide groove, and the slide plate is hinged to the telescopic end of the hydraulic push rod. The hydraulic push rod can drive the clamping rod to rotate, thereby realizing the rotation of the clamping plate.

[0014] Preferably, in order to solve the use problem of the hydraulic push rod, a waterproof coating is provided on the hydraulic push rod. The waterproof coating can improve the waterproofness of the hydraulic push rod and avoid being affected by seawater.

[0015] (III) Beneficial effects

[0016] The submarine pipeline lifting and docking sling has a simple structure and is easy to use. By setting a liquid storage tank and a limit bolt, the amount of seawater in the liquid storage tank can be adjusted through the control of an electric push rod, thereby changing the overall buoyancy and ensuring stability and accuracy during the docking process. At the same time, by moving the adjustment block, the spacing between the clamping plates can be changed to adapt to pipelines of different diameters, thereby improving its versatility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the overall structure of a submarine pipeline lifting and docking lifting device;

[0018] Figure 2 It is a schematic diagram of the overall multi-angle structure of a submarine pipeline lifting and docking lifting device;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0020] Figure 4 The figure is a schematic diagram of the internal structure of a liquid storage tank of a submarine pipeline lifting and docking sling.

[0021] In the figure: 1. lifting beam 1; 11. lifting ear; 12. fixing plate; 2. lifting beam 2; 3. mounting frame; 31. adjusting block; 311. supporting plate; 32. clamping rod; 33. clamping plate; 34. driving mechanism; 341. hydraulic push rod; 342. slide groove; 343. slide plate; 35. limiting mechanism; 351. limiting groove; 352. limiting bolt; 4. liquid storage tank; 41. liquid outlet pipe; 42. liquid inlet pipe; 43. pushing mechanism; 431. electric push rod; 432. piston plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] The utility model provides a submarine pipeline lifting and docking lifting device, such as Figure 1-4 As shown, the submarine pipeline lifting and docking lifting device includes a lifting beam 1, a lifting beam 2 slidably installed in the lifting beam 1, and a plurality of lifting ears 11 fixedly installed on the lifting beam 1 and the lifting beam 2 and distributed in a linear array, the lifting beam 1 and the lifting beam 2 are symmetrically provided with a plurality of installation frames 3 distributed in a linear array, an adjustment block 31 is slidably installed in the installation frame 3, a clamping rod 32 is rotatably installed on the adjustment block 31, a clamping plate 33 is fixedly installed on one end of the clamping rod 32 away from the adjustment block 31, a plurality of fixed plates 12 distributed in a linear array and adapted to the clamping plate 33 are fixedly installed on one end of the lifting beam 1 and the lifting beam 2 away from the lifting ear 11, a support plate 311 is fixedly installed on the adjustment block 31, and a driving mechanism 34 for driving the clamping rod 32 is provided on the support plate 311;

[0025] A liquid storage tank 4 is fixedly mounted on the mounting frame 3, a liquid outlet pipe 41 is penetrated at one end of the liquid storage tank 4, a liquid inlet pipe 42 is penetrated at one end of the liquid storage tank 4 at a symmetrical position of the liquid outlet pipe 41, one-way valves with opposite flow directions are installed in the liquid outlet pipe 41 and the liquid inlet pipe 42, and a pushing mechanism 43 is arranged in the liquid storage tank 4.

[0026] When in use, the lifting beam 1 and the lifting beam 2 can be lifted by the lifting ear 11. When the lifting beam 1 and the lifting beam 2 enter the pipeline, the driving mechanism 34 can drive the clamping rod 32 and the clamping plate 33 to rotate, so that the pipeline can be clamped by the clamping plate 33 and the fixing plate 12, so that the pipeline to be docked can be clamped, and the hydraulic system arranged between the lifting beam 1 and the lifting beam 2 can be used to drive the pipeline to move and achieve docking. In the process of lifting the lifting beam 1 and the lifting beam 2 on the seabed, the amount of seawater in the liquid storage tank 4 can be controlled by the cooperation of the pushing mechanism 43 and the liquid outlet pipe 41 and the liquid inlet pipe 42 to change the overall buoyancy and ensure the stability of the lifting and docking.

[0027] Specifically, the pushing mechanism 43 includes an electric push rod 431 fixedly installed in the liquid storage tank 4 at one end away from the liquid outlet pipe 41, and a piston plate 432 fixedly installed at the telescopic end of the electric push rod 431 and adapted to the liquid storage tank 4; when the electric push rod 431 is extended, the seawater in the liquid storage tank 4 can be compressed through the piston plate 432, so that the seawater is discharged along the liquid outlet pipe 41 under the action of the one-way valve, and when the electric push rod 431 is shortened, a negative pressure can be formed inside the liquid storage tank 4, and the seawater can enter the liquid storage tank 4 through the liquid inlet pipe 42, thereby changing the overall weight to change the buoyancy.

[0028] More specifically, the driving mechanism 34 includes a hydraulic push rod 341 fixedly installed on the support plate 311, a slide groove 342 opened on the clamping rod 32, and a slide plate 343 slidably installed in the slide groove 342, and the slide plate 343 is hinged to the telescopic end of the hydraulic push rod 341; when the hydraulic push rod 341 is opened, it can drive the slide plate 343 to slide in the slide groove 342, thereby driving the clamping rod 32 to rotate, completing the opening and closing and clamping actions.

[0029] It should be noted that a waterproof coating is provided on the hydraulic push rod 341 .

[0030] Example 2

[0031] Different from Example 1, a limiting mechanism 35 is provided between the adjusting block 31 and the mounting frame 3 , and the limiting mechanism 35 includes a limiting groove 351 provided on the adjusting block 31 and the mounting frame 3 and a limiting bolt 352 screwed into the limiting groove 351 .

[0032] When in use, the limiting bolt 352 can be removed to release the limiting of the adjusting block 31. At this time, the adjusting block 31 can be moved according to the diameter of the pipeline to change the distance between the two clamps 33. After the adjustment is completed, the limiting bolt 352 can be screwed into the limiting groove 351 at the corresponding position to fix the adjusting block 31, so that the clamp 33 can clamp and fix pipelines of different diameters.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A submarine pipeline lifting and docking lifting device, comprising a lifting beam (1), a lifting beam (2) slidably mounted in the lifting beam (1), and a plurality of lifting ears (11) fixedly mounted on the lifting beam (1) and the lifting beam (2) and distributed in a linear array, wherein the lifting beam (1) and the lifting beam (2) are symmetrically provided with a plurality of installation frames (3) distributed in a linear array, wherein an adjustment block (31) is slidably mounted in the installation frame (3), and a rotationally mounted adjustment block (31) is provided on the adjustment block (31). A clamping rod (32) is provided, and a clamping plate (33) is fixedly installed at one end of the clamping rod (32) away from the adjusting block (31); a plurality of fixing plates (12) distributed in a linear array and adapted to the clamping plate (33) are fixedly installed at one end of the hanging beam (1) and the hanging beam (2) away from the lifting ear (11); a support plate (311) is fixedly installed on the adjusting block (31), and a driving mechanism (34) for driving the clamping rod (32) is arranged on the support plate (311); Features: A liquid storage box (4) is fixedly mounted on the mounting frame (3); a liquid outlet pipe (41) is provided through one end of the liquid storage box (4); a liquid inlet pipe (42) is provided through one end of the liquid storage box (4) at a symmetrical position with respect to the liquid outlet pipe (41); one-way valves with opposite flow directions are installed in the liquid outlet pipe (41) and the liquid inlet pipe (42); and a pushing mechanism (43) is provided in the liquid storage box (4).

2. The submarine pipeline lifting and docking lifting device according to claim 1 is characterized by: The pushing mechanism (43) comprises an electric push rod (431) fixedly mounted in the liquid storage tank (4) at one end away from the liquid outlet pipe (41), and a piston plate (432) fixedly mounted at the telescopic end of the electric push rod (431) and adapted to the liquid storage tank (4).

3. The submarine pipeline lifting and docking lifting device according to claim 1 is characterized by: A limiting mechanism (35) is provided between the adjustment block (31) and the installation frame (3).

4. The submarine pipeline lifting and docking lifting device according to claim 3 is characterized by: The limiting mechanism (35) comprises a limiting groove (351) provided on the adjusting block (31) and the mounting frame (3), and a limiting bolt (352) screwed into the limiting groove (351).

5. The submarine pipeline lifting and docking lifting device according to claim 1 is characterized by: The driving mechanism (34) comprises a hydraulic push rod (341) fixedly mounted on the support plate (311), a slide groove (342) provided on the clamping rod (32), and a slide plate (343) slidably mounted in the slide groove (342); the slide plate (343) is hinged to the telescopic end of the hydraulic push rod (341).

6. The submarine pipeline lifting and docking lifting device according to claim 5 is characterized in that: The hydraulic push rod (341) is provided with a waterproof coating.

Images