Internal aligning device recovery device for submarine pipeline laying

Abstract

The utility model discloses an internal clamp recovery device for laying subsea pipelines, which comprises an internal clamp and an umbilical cable, the umbilical cable is connected with the internal clamp, the internal clamp is arranged at one end of a first subsea pipeline, the umbilical cable penetrates through a second subsea pipeline, the second subsea pipeline is connected with one end of the internal clamp far away from the first subsea pipeline, and the first subsea pipeline is connected with the second subsea pipeline. And the butt joint ports of the first subsea pipeline and the second subsea pipeline are welded, and the umbilical cable is pulled to enable the inner aligning device to slide to the second subsea pipeline so as to enable the inner aligning device to slide out of the second subsea pipeline to be recycled. According to the inner aligning device recycling device for submarine pipeline laying, the two ends of the first submarine pipeline and the two ends of the second submarine pipeline are fixed through the inner aligning devices, so that ports of the first submarine pipeline and the second submarine pipeline are in butt joint and welded; and the umbilical cable is connected with the inner aligning device, so that the inner aligning device slides out in the recovery direction of the second subsea pipeline umbilical cable, and recovery of the inner aligning device is achieved. The umbilical cable is recycled through the umbilical cable winch, the umbilical cable recycling time is shortened, the occupied area is reduced, and the subsea pipeline laying efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of fully automatic welding construction of submarine pipelines, and in particular relates to an internal butt-joint device recovery device for laying submarine pipelines. Background Art

[0002] At present, in actual operation, the pipe-laying vessel can only move forward after all the work stations are completed. When two sea pipe groups are welded, they are fixed with an internal jointer, and the internal jointer recovery device recovers the internal jointer through two steel pipes and a wire rope.

[0003] By recovering the wire rope, the inner jointer is returned from the front end of the submarine pipeline to the rear end of the submarine pipeline, and then the next assembly operation can be started. This restricts the efficiency of the inner jointer recovery and the overall laying efficiency of the submarine pipeline is slow. At the same time, the steel pipe is relatively large in size, and a large amount of manpower is required for installation and removal, which is time-consuming and laborious.

[0004] Therefore, it is urgent to design an internal joint recovery device for laying a submarine pipe to solve the above-mentioned problem of slow laying efficiency of the overall submarine pipe. Utility Model Content

[0005] In order to solve the technical problems mentioned in the background technology that the steel pipe is relatively large in size, requires a large amount of manpower to cooperate in installation and removal, and is time-consuming and labor-intensive, an internal butt-joint recovery device for laying a submarine pipe is provided to solve the problem of slow overall laying efficiency of the submarine pipe.

[0006] In order to achieve the above-mentioned purpose, the specific technical scheme of the internal joint recovery device for laying a subsea pipe of the utility model is as follows:

[0007] A device for recovering an inner butt jointer for laying a sea pipe comprises an inner butt jointer and an umbilical cable, wherein the umbilical cable is connected to the inner butt jointer, the inner butt jointer is arranged at one end of a first sea pipe, the umbilical cable passes through a second sea pipe, the second sea pipe is connected to an end of the inner butt jointer away from the first sea pipe, the first sea pipe and the second sea pipe are butt-jointed and welded, the umbilical cable is pulled to slide the inner butt jointer to the second sea pipe, so that the inner butt jointer slides out of the second sea pipe for recovery.

[0008] Furthermore, the inner aligner is suspended to one end of the first sea pipe by a sling, and the first sea pipe is sleeved on the inner aligner.

[0009] Furthermore, a wire rope pneumatic winch is provided at one end of the second subsea pipe, an umbilical cable winch is provided at one end of the second subsea pipe away from the wire rope pneumatic winch, the umbilical cable is arranged on the umbilical cable winch, a transition connecting rope is provided in the second subsea pipe, one end of the transition connecting rope is connected to the wire rope pneumatic winch, and one end of the transition connecting rope away from the wire rope pneumatic winch is connected to the umbilical cable, so that the umbilical cable is moved from one end of the umbilical cable winch of the second subsea pipe to one end of the wire rope pneumatic winch.

[0010] Further, the umbilical cable is moved to one end of the second sea pipe and connected to the inner docking device, and the inner docking device is inserted into the second sea pipe away from one end of the first sea pipe to dock the first sea pipe with the second sea pipe.

[0011] Furthermore, an automatic welding machine is provided at the butt joint ports of the first sea pipe and the second sea pipe to weld the butt joint ports of the first sea pipe and the second sea pipe.

[0012] Further, the umbilical cable winch pulls the umbilical cable, and the umbilical cable pulling inner docking device slides from the first sea pipe and the second customs docking port along the second sea pipe direction, so that the inner docking device slides out along the second sea pipe provided with the umbilical cable winch end.

[0013] Furthermore, the inner joint device comprises a joint device and a conical head, the conical head is inserted into the first sea pipe, and the first sea pipe and the second sea pipe are sleeved on the joint device to make the first sea pipe and the second sea pipe butt joint.

[0014] Furthermore, the umbilical cable is provided with a quick connector so that the umbilical cable is connected to the connector by the quick connector.

[0015] Furthermore, the umbilical cable winch is provided with a slide rail, and the slide rail is arranged along the sliding direction of the second submarine pipeline so that the umbilical cable winch slides with the second submarine pipeline.

[0016] Furthermore, the wire rope pneumatic winch is provided with a hook, which is connected to the transition connecting rope.

[0017] The inner joint recovery device for laying sea pipes of the utility model has the following advantages:

[0018] The first and second sea pipes are fixed at both ends by the inner butt jointer, so that the first and second sea pipes are butted and welded; the umbilical cable is connected to the inner butt jointer, so that the inner butt jointer slides out from the recovery direction of the umbilical cable of the second sea pipe, so as to realize the recovery of the inner butt jointer. The present application realizes the flexible connection of the inner butt jointer by the umbilical cable, and the umbilical cable is recovered by the umbilical cable winch, which reduces the recovery time of the umbilical cable, reduces the floor space, saves labor, and improves the efficiency of laying sea pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A side view of the inner butt joint recovery device for laying a subsea pipe according to the utility model;

[0020] Figure 2 This is a side view of the connection between the steel wire rope pneumatic winch and the transition connecting rope of the inner joint recovery device for laying the subsea pipe of the utility model;

[0021] Figure 3 This is a side view of the connection between the umbilical cable winch and the transition connecting rope of the inner docking device recovery device for laying the submarine pipeline of the utility model;

[0022] Figure 4A side view showing the disconnection of the wire rope pneumatic winch and the umbilical cable of the inner butt joint recovery device for laying the subsea pipeline of the utility model;

[0023] Figure 5 The utility model is a side view of the inner joint device of the inner joint device recovery device for laying a sea pipe.

[0024] Description of the markings in the figure:

[0025] 1. Internal jointer; 2. Umbilical cable; 3. First sea pipe; 4. Second sea pipe; 5. Sling; 6. Wire rope pneumatic winch; 7. Transition connecting rope; 8. Umbilical cable winch; 9. Jointer; 10. Conical head; 11. Quick connector; 12. Hook. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0028] Please refer to the attached Figure 1 To Attachment Figure 5 The utility model describes an inner butt joint recovery device for laying a sea pipe.

[0029] like Figure 1As shown, the internal joint recovery device for laying a sea pipe in the utility model includes an internal joint 1 and an umbilical cable 2. The umbilical cable 2 is connected to the internal joint 1. The internal joint 1 is arranged at one end of the first sea pipe 3. The umbilical cable 2 passes through the second sea pipe 4. The second sea pipe 4 is connected to the end of the internal joint 1 away from the first sea pipe 3. The first sea pipe 3 and the second sea pipe 4 are welded at the butt ports. The umbilical cable 2 is pulled to slide the internal joint 1 to the second sea pipe 4, so that the internal joint 1 can be slid out of the second sea pipe 4 for recovery. The first sea pipe 3 and the second sea pipe 4 are fixed at both ends by the internal joint 1, so that the ports of the first sea pipe 3 and the second sea pipe 4 are butt-jointed and welded; the umbilical cable 2 is connected to the internal joint 1, so that the internal joint 1 can slide out from the recovery direction of the umbilical cable 2 of the second sea pipe 4, so as to realize the recovery of the internal joint 1. In the present application, the umbilical cable 2 is used to realize the flexible connection of the inner docking device 1, and the umbilical cable 2 is recovered by the umbilical cable winch 8, which reduces the recovery time of the umbilical cable 2, reduces the floor space, saves labor, and improves the efficiency of laying the submarine pipeline.

[0030] Further, if Figure 1 , Figure 2 and Figure 3 As shown, the inner jointer 1 is lifted by the sling 5 to one end of the first sea pipe 3, and the first sea pipe 3 is sleeved on the inner jointer 1; a wire rope pneumatic winch 6 is provided at one end of the second sea pipe 4, and an umbilical cable winch 8 is provided at one end of the second sea pipe 4 away from the wire rope pneumatic winch 6, and the umbilical cable 2 is arranged on the umbilical cable winch 8, and a transition connecting rope 7 is provided in the second sea pipe 4, and one end of the transition connecting rope 7 is connected to the wire rope pneumatic winch 6, and the end of the transition connecting rope 7 away from the wire rope pneumatic winch 6 is connected to the umbilical cable 2, so that the umbilical cable 2 is moved from one end of the umbilical cable winch 8 of the second sea pipe 4 to one end of the wire rope pneumatic winch 6; the umbilical cable 2 is moved to one end of the second sea pipe 4 and connected to the inner jointer 1, and the end of the inner jointer 1 away from the first sea pipe 3 is inserted into the second sea pipe 4, so that the first sea pipe 3 and the second sea pipe 4 are butt-jointed. In this embodiment, the inner aligner 1 is provided with a lifting hole, which is convenient for the sling 5 to lift the inner aligner 1 and move it to one end of the first sea pipe 3.

[0031] The wire rope pneumatic winch 6 is wound with a wire rope, and the umbilical cable 2 is wound on the umbilical cable winch 8. Preferably, the main structure of the umbilical cable 2 includes 15-17 core copper wires and a 1 / 4 inch air tube with a minimum bursting pressure of 828 bar. The outer diameter of the umbilical cable 2 is 31-35 mm, the bending radius is 340-360 mm, the minimum breaking force is 100 KN, and the mass is 1.86 kg / m. The composite slip ring preliminarily selected has a shell diameter of 70 mm, a circuit number of 30-34, a maximum current of 20 amperes, a maximum voltage of 250 volts, a maximum speed of 500 rpm, a maximum air pressure of 40 bar, and an air rotary joint of 1 / 4 inch. The umbilical cable 2 can realize the expansion and retraction of the copper boot on the inner docking device 1 to achieve abutment or separation with the inner wall of the sea pipe, and realize electrical signal transmission and retraction of the inner docking device 1.

[0032] The second sea pipe 4 is pre-equipped with a transition connecting rope 7 for connecting the steel wire rope and the umbilical cable 2. The steel wire rope drives the transition connecting rope 7 to move the umbilical cable 2 from one end of the umbilical cable winch 8 of the second sea pipe 4 to one end of the steel wire rope pneumatic winch 6. The umbilical cable 2 is disconnected from the steel wire rope, and the second sea pipe 4 is moved to connect the umbilical cable 2 with the inner docking device 4. The second sea pipe 4 is sleeved on the inner docking device 1 to accurately dock the first sea pipe 3 and the second sea pipe 4.

[0033] Further, if Figure 1 and Figure 4 As shown, the first sea pipe 3 and the second sea pipe 4 are provided with an automatic welding machine at the docking port, so that the first sea pipe 3 and the second sea pipe 4 are welded at the docking port; the umbilical cable winch 8 pulls the umbilical cable 2, and the umbilical cable 2 pulls the inner joint device 1 from the docking port of the first sea pipe 3 and the second sea pipe 4 to slide along the direction of the second sea pipe 4, so that the inner joint device 1 slides out along the end of the second sea pipe 4 provided with the umbilical cable winch 8. In this embodiment, the first sea pipe 3 and the second sea pipe 4 ports that are precisely docked are welded by an automatic welding machine, and the connection of the first sea pipe 3 and the second sea pipe 4 is completed. Recover the inner joint device 1 Recover the umbilical cable 2 by the umbilical cable winch 8, so that the umbilical cable 2 pulls the inner joint device 1 to slide along the inner wall of the second sea pipe 4, so that the inner joint device 1 is separated from the welding port of the first sea pipe 3 and the second sea pipe 4. According to the construction needs, the inner joint device 1 can be directly recovered, or the third sea pipe 3 can be connected to the second sea pipe 4, so that the inner joint device 1 is connected to the second sea pipe 4 and the third sea pipe connection port, and the port welding is performed.

[0034] Further, if Figure 5 As shown, the internal docking device 1 includes a docking device 3 and a conical head 10, the conical head 10 is inserted into the first sea pipe 3, and the first sea pipe 3 and the second sea pipe 4 are sleeved on the docking device 9 to dock the first sea pipe 3 and the second sea pipe 4; the umbilical cable 2 is provided with a quick connector 11, so that the umbilical cable 2 is connected to the docking device 10 by the quick connector 11; the umbilical cable winch 8 is provided with a slide rail, and the slide rail is arranged along the sliding direction of the second sea pipe 4, so that the umbilical cable winch 8 slides with the second sea pipe 4; the wire rope pneumatic winch 6 is provided with a hook 12, and the hook 12 is connected to the transition connecting rope 7.

[0035] In this embodiment, the side of the inner jointer 1 inserted into the port of the first sea pipe 3 is tapered to facilitate the insertion of the inner jointer; the jointer 9 is a cylinder, which allows the connection ports of the first sea pipe 3 and the second sea pipe 4 to be respectively sleeved on the jointer 9, so that the ports of the first sea pipe 3 and the second sea pipe 4 are aligned through the jointer 9 for port welding. Matching quick connectors 11 are used at both ends of the umbilical cable 2, and have the ability to be quickly replaced. The quick connector 11 of the umbilical cable 2 is connected to the jointer 9 to achieve a quick connection. The umbilical cable winch 8 is provided with a slide rail consistent with the moving direction of the second sea pipe 4, so that when the second sea pipe 4 moves, the umbilical cable winch 8 moves with the second sea pipe 4. A hook 12 is provided on the wire rope, and the hook 12 is connected to the transition rope 7 for easy disassembly.

[0036] The working principle of the inner joint recovery device for laying sea pipes in the utility model is as follows:

[0037] The inner jointer 1 is lifted and moved to one end of the first sea pipe 3, the conical head 10 of the inner jointer 1 is inserted into the first sea pipe 3, the jointer 9 is abutted against the port of the first sea pipe 3, the wire rope pneumatic winch 6 drives the transition connecting rope 7 to move, the transition connecting rope 7 is arranged through the second sea pipe 4, and the end away from the wire rope pneumatic winch 6 is connected with the umbilical cable 2 quick connector 11, driving the umbilical cable 2 to slide to one end of the wire rope pneumatic winch 6, the umbilical cable 2 quick connector 11 is disconnected from the transition connecting rope 7, the second sea pipe 4 is moved to connect the umbilical cable 2 quick connector 11 with the jointer 9, and the second sea pipe 4 is sleeved on the jointer 9, and the first sea pipe 3 and the second sea pipe 4 are butt-jointed and welded; after welding is completed, the umbilical cable 2 is pulled to drive the inner jointer 1 to slide along the inner wall of the second sea pipe 4, so as to realize the recovery of the inner jointer 1.

[0038] Based on the internal docking device recovery device for laying sea pipes, the utility model fixes the two ends of the first sea pipe 3 and the second sea pipe 4 through the internal docking device 1, so that the first sea pipe 3 and the second sea pipe 4 ports are docked and welded; the umbilical cable 2 is connected to the internal docking device 1, so that the internal docking device 1 slides out from the recovery direction of the umbilical cable 2 of the second sea pipe 4, and the internal docking device 1 is recovered. The present application realizes the flexible connection of the internal docking device 1 by the umbilical cable 2, and the umbilical cable 2 is recovered by the umbilical cable winch 8, which reduces the recovery time of the umbilical cable 2, reduces the floor space, saves labor, and improves the efficiency of laying sea pipes.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An internal butt joint recovery device for laying a submarine pipe, characterized in that: The invention comprises an inner jointer and an umbilical cable, wherein the umbilical cable is connected to the inner jointer, the inner jointer is arranged at one end of a first sea pipe, the umbilical cable passes through a second sea pipe, the second sea pipe is connected to an end of the inner jointer away from the first sea pipe, the butt joint ports of the first sea pipe and the second sea pipe are welded, the umbilical cable is pulled to slide the inner jointer to the second sea pipe, so that the inner jointer can be slid out of the second sea pipe for recovery.

2. The internal joint recovery device for laying a sea pipe according to claim 1, characterized in that: The inner aligner is suspended to one end of the first sea pipe by a sling, and the first sea pipe is sleeved on the inner aligner.

3. The internal joint recovery device for laying a sea pipe according to claim 1, characterized in that: A wire rope pneumatic winch is provided at one end of the second subsea pipe, an umbilical cable winch is provided at one end of the second subsea pipe away from the wire rope pneumatic winch, the umbilical cable is arranged on the umbilical cable winch, a transition connecting rope is provided in the second subsea pipe, one end of the transition connecting rope is connected to the wire rope pneumatic winch, and one end of the transition connecting rope away from the wire rope pneumatic winch is connected to the umbilical cable, so that the umbilical cable is moved from one end of the umbilical cable winch of the second subsea pipe to one end of the wire rope pneumatic winch.

4. The internal joint recovery device for laying a sea pipe according to claim 3, characterized in that: The umbilical cable is moved to one end of the second sea pipe and connected to the inner joint device, and the inner joint device is inserted into the second sea pipe away from one end of the first sea pipe to connect the first sea pipe with the second sea pipe.

5. The internal joint recovery device for laying a sea pipe according to claim 4, characterized in that: The butt joint ports of the first sea pipe and the second sea pipe are provided with an automatic welding machine to weld the butt joint ports of the first sea pipe and the second sea pipe.

6. The internal joint recovery device for laying a sea pipe according to claim 4, characterized in that: The umbilical cable winch pulls the umbilical cable, and the inner docking device of the umbilical cable pulls slides from the first sea pipe and the second sea pipe docking port along the second sea pipe direction, so that the inner docking device slides out along the second sea pipe provided with the umbilical cable winch end.

7. The internal joint recovery device for laying a sea pipe according to claim 6, characterized in that: The inner joint device comprises a joint device and a conical head. The conical head is inserted into the first sea pipe. The first sea pipe and the second sea pipe are sleeved on the joint device so as to butt the first sea pipe and the second sea pipe.

8. The internal joint recovery device for laying a sea pipe according to claim 6, characterized in that: The umbilical cable is provided with a quick connector so that the umbilical cable can be connected to the connector by the quick connector.

9. The internal joint recovery device for laying a sea pipe according to claim 7, characterized in that: The umbilical cable winch is provided with a slide rail, and the slide rail is arranged along the sliding direction of the second submarine pipeline so that the umbilical cable winch slides with the second submarine pipeline.

10. The internal joint recovery device for laying a sea pipe according to claim 3, characterized in that: The wire rope pneumatic winch is provided with a hook which is connected with a transition connecting rope.

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