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Device and method for laying marine pipelines

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

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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  • Device and method for laying marine pipelines
  • Device and method for laying marine pipelines
  • Device and method for laying marine pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, a marine pipeline laying device includes a construction ship 1, and a conveyor chain 2 for transporting segmented pipes 3 is provided from the construction ship to the seabed. The iron chain of the chain, of course, can also use a strong enough rope. A plurality of segmented pipe guide joints 4 are arranged from top to bottom along the conveying chain to guide the pipe body. The distance between the guide joints can be adjusted according to the needs. set up.

[0030] like figure 2 As shown, the guide joint includes a short tube 401 as the main body, inside the short tube there are four inner guide wheels 402 supported on the chain links of the conveyor chain, on the short tube there is a pin 403 for fixing the short tube on the chain link, The short pipe is provided with a telescopic claw 903 supporting the inner wall of the segmented pipe. There is a guide wheel at the end of the telescopic claw, so that the guide joint can be fixed on the ...

Embodiment 2

[0040] like Image 6 , 7 As shown, what is different from the first embodiment is that the turntable of the docking turntable 5 is provided with a frame body, and the frame body is a regular hexagonal frame body formed by the end-to-end connection of the rotating shafts 501, and the rotating shafts are connected to each other through the universal coupling 502, Each rotating shaft is provided with a telescopic claw perpendicular to the rotating shaft, and the telescopic claw may be only a section of a rod body, or may be the same hydraulic cylinder as the telescopic claw in the first embodiment. Each rotating shaft is provided with a bearing, the bearing is supported on the turntable 504 through the support column 503 , and the rotating shaft is provided with a rotating shaft rotating motor 505 which controls the rotation of the rotating shaft. By rotating the rotating shaft, the ends of the telescopic claw can be gathered or opened outward, which is equivalent to controlling...

Embodiment 3

[0044] like Figure 8 , 9 , 10, the difference from Embodiments 1 and 2 is that the telescopic claw telescopic mechanism of any one of the docking turntable, the first connecting turntable or the second connecting turntable is a chuck claw type telescopic mechanism: that is, in the housing 904 A turntable 9 is provided, the turntable is provided with a spiral groove, and the telescopic claws are provided with teeth that cooperate with the spiral groove. The turntable shaft is connected to a turntable drive motor 603 that controls the rotation of the turntable. The motor is fixed on the housing, and the turntable is controlled by the motor. The rotation in different directions controls the telescopic claw to extend or retract the housing along the radial direction of the turntable, which is similar to the structure of the chuck on the machine tool.

[0045] Further, two sides of the turntable are provided with spiral grooves with different helical directions, and the spiral gr...

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PUM

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Abstract

The invention provides an ocean pipeline paving device and a paving method, belongs to the technical field of ocean engineering, relates to ocean engineering equipment, and solves the problem of difficult pavement of seabed pipelines in the prior art. The ocean pipeline paving device and paving method are provided with a segmented pipe conveying chain from a construction ship to a seabed; the conveying chain is provided with segmented guide sections from top to bottom; the end part, positioned at the seabed, of the conveying chain 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 through a parallel control mechanism consisting of extension cylinders; a rotation driving mechanism for controlling relative rotation of two connecting turntables is arranged between the first connecting turntable and a second connecting turntable; and the first connecting turntable and the second connecting turntable are connected through an extension control mechanism. The ocean pipeline paving device and paving method prevent potential safety hazards caused by suspension sections of pipelines and interaction of the pipelines and ship bodies.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, and relates to a device and a laying method 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, and advances one section after welding. This is the ...

Claims

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Application Information

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