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A control device for lowering the pipe body of an ocean pipeline

A technology for controlling equipment and line pipes, applied in mechanical equipment, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc., can solve the problems of easily damaged ships, pipeline damage, increased ship load, etc., to achieve convenient operation and low cost Low, simple structure effect

Active Publication Date: 2018-09-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This section of the overhanging pipe body not only increases the load of the ship, but also easily causes damage to the pipeline
The interaction between the ship and the pipe body, especially when the wind and waves are strong, the movement of the ship acting on the pipeline is easy to damage the pipeline, and the movement of the pipeline acting on the ship is also easy to damage the ship, threatening the safety of the ship

Method used

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  • A control device for lowering the pipe body of an ocean pipeline
  • A control device for lowering the pipe body of an ocean pipeline
  • A control device for lowering the pipe body of an ocean pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , 2 As shown, a control device for lowering the pipe body of an ocean pipeline includes a construction ship 1, and a conveyor chain 2 for transporting segmented pipes 3 is provided from the construction ship to the seabed. Compared with the iron chain of the anchor chain, of course, a sufficiently strong rope can also be used. The end of the conveyor chain is connected with two segmented pipe lead-in chains in parallel, which are called the first lead-in chain 201 and the second lead-in chain 202. One end of the lead-in chain is fixed On a ship, the other end is connected to the end of the conveyor chain through a conveniently opened and closed lock. Along the conveyor chain, a plurality of segmented pipe guide joints 4 are arranged from top to bottom to guide the pipe body. The spacing between them can be set as required.

[0033] Such as image 3 As shown, the guide joint includes a short tube 401 as the main body, inside the short tube there are fou...

Embodiment 2

[0044] Such as Figure 7 , 8 As shown, the difference from Embodiment 1 is that a frame body is provided on the turntable of the docking turntable 5, and the frame body is a regular hexagonal frame body composed of rotating shafts 501 connected end to end, and the rotating shafts are connected to each other through universal couplings 502. Each rotating shaft is provided with a telescopic claw perpendicular to the rotating shaft, and the telescopic claw can be only a section of rod, or it can be the same hydraulic cylinder as the telescopic claw in the first embodiment. Each rotating shaft is provided with a bearing 504 , and the bearing is supported on the turntable 9 through a support column 503 , and a rotating shaft rotating motor 505 is provided on the rotating shaft to control the rotation of the rotating shaft. The ends of the telescopic claws are gathered or spread out by rotating the rotating shaft, which is equivalent to controlling the expansion and contraction of ...

Embodiment 3

[0048] Such as Figure 9 , 10 As shown in 11 and 11, the difference from Embodiments 1 and 2 is that the telescopic claw telescopic mechanism of any one of the docking turntable, the first connection turntable or the second connection turntable is a chuck claw type telescopic mechanism: that is, in the housing 601 A turntable is provided with a spiral groove on the turntable, and teeth matching the spiral groove are arranged on the telescopic claw. The turntable drive motor 603 is connected to the turntable shaft to control the rotation of the turntable. The motor is fixed on the housing 904, and the turntable is controlled by the motor. Rotation in different directions controls the telescopic claws to protrude or retract to the housing along the radial direction of the turntable, which is similar to the structure of the chuck on the machine tool.

[0049] Further, the two sides of the turntable are provided with spiral grooves with different helical directions, and the spira...

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PUM

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Abstract

The invention provides a marine pipeline laying control device, belonging to the technical field of marine engineering and relating to marine engineering equipment. The marine pipeline laying control device solves the problem that submarine pipelines are difficult to lay in the prior art. The marine pipeline laying control device is characterized in that segmented pipe conveying chains are arranged between a workboat and the seabed, the end of the conveying chains is connected in parallel with two segmented pipe importing chains, and the conveying chains are provided with segmented pipe importing sections from top to bottom. The end of the conveying chains in the seabed is connected with a butt-joint turntable. A first connecting turntable is arranged behind the butt-joint turntable. The butt-joint turntable and the first connecting turntable are connected by a parallel control mechanism constituted by a telescopic cylinder. A rotary driving mechanism which controls the relative rotation of the two connecting turntables is arranged between the first connecting turntable and the second connecting turntable. The first connecting turntable and the second connecting turntable are connected by a telescopic control mechanism. The device can avoid the safety hazards caused by the suspension of the pipeline and the interaction between the pipeline and the hull.

Description

technical field [0001] The invention belongs to the technical field of marine engineering and relates to a device for laying submarine pipelines. Background technique [0002] With the continuous deepening of human development of the ocean, it is becoming more and more necessary to lay transmission pipelines or lines on the seabed, such as pipelines for oil and gas transmission or power transmission or information transmission cables. To ensure the safety of power transmission or information transmission cables, usually It also needs to be put into the pre-laid piping. [0003] At present, the laying method of the submarine pipeline is mainly: when laying the pipe, the ship is in place according to the laying line and anchored. After the prefabricated pipe sections are connected on the ship, they enter the water from the stinger, and the pipe-laying ship moves forward gradually by the mooring system, connecting one section and advancing one section. This is the current lay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/16F16L1/235F16L1/20B63B35/03
CPCF16L1/161F16L1/202F16L1/235
Inventor 陈正寿李健
Owner ZHEJIANG OCEAN UNIV