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Offshore pipeline lowering rotary guide device

A technology of rotary guidance and pipeline, which is applied in the direction of pipeline laying and maintenance, pipes/pipe joints/pipe fittings, mechanical equipment, etc. It can solve the problems of inability to adjust the direction of pipeline laying, the direction of pipeline laying down, and the quality of pipeline laying. and other issues, to achieve the effect of improving the efficiency of pipeline lowering operations, high construction safety performance, and high construction quality

Active Publication Date: 2022-07-05
CCCC THIRD HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under deep water conditions, the situation of offshore pipeline laying operations is more complicated, and it is difficult for pipeline laying ships to make real-time adjustments according to changes in underwater conditions, which may lead to problems in the quality of pipeline laying
[0003] Aiming at the problem that the existing pipeline installation device cannot effectively adjust the direction of pipeline lowering, and cannot make adaptive adjustments to the direction of pipeline laying, a fully rotating guide device that can effectively adjust the direction of pipeline lowering during the process of pipeline laying is needed

Method used

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  • Offshore pipeline lowering rotary guide device
  • Offshore pipeline lowering rotary guide device
  • Offshore pipeline lowering rotary guide device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, refer to figure 1 , an offshore pipeline lowering rotary guide device, comprising a rotary guide mechanism arranged on the hull 15 of the offshore pipeline laying vessel for guiding the laying of the pipeline 14, and the hull 15 of the offshore pipeline laying vessel is provided with an auxiliary guide for assisting the laying of the pipeline 14 guide agency;

[0028] refer to figure 2 , combined with image 3 , Figure 4 , the rotary guide mechanism includes a rotating sleeve 1 arranged on the hull 15, the rotating sleeve 1 is rotatably mounted on the hull 15 through a rotating shaft 5, and a penetration channel 2 for the pipeline 14 to pass through is provided in the rotating sleeve 1, The center line of the passing channel 2 is set perpendicular to the axis of the rotating shaft 5; two pinch rollers 3 groups are symmetrically arranged on both sides of the passing channel 2, and the pinch rollers 3 groups are composed of several parallel pinch rollers 3...

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Abstract

A rotary guiding device for lowering an offshore pipeline, which relates to the technical field of offshore pipeline laying engineering, includes a rotary guiding mechanism and an auxiliary guiding mechanism; Two pinch roller groups are symmetrically arranged on both sides; a friction layer is arranged on the outer circumference of the pinch roller; the roller shaft of the pinch roller is connected with the rotating driving device; There are symmetrically arranged rotating shafts, and the two rotating shafts are connected with the rotating drive device; the auxiliary guiding mechanism includes an adjustment base, on which a swing frame is arranged, and the lower part of the swing frame is rotatably installed on the adjustment base through the rotating shaft , the rotating shaft and the rotating shaft are arranged in parallel; an auxiliary ring is arranged on the upper part of the swing frame, and a traction wire rope is arranged on the hull, and the traction wire rope is connected with the auxiliary ring. The invention can effectively adjust the pipe laying direction, has high construction flexibility, good construction quality and high safety.

Description

technical field [0001] The invention relates to the technical field of offshore pipeline laying engineering, in particular to a rotary guide device for laying down offshore pipelines. Background technique [0002] At present, the equipment for pipeline laying operations at sea is mainly a special-purpose ship for pipeline laying. The existing laying devices for offshore pipelines cannot effectively adjust the laying direction of the pipeline during the pipeline laying process. In the complex construction water environment, it is difficult to achieve Good construction effect, and poor construction flexibility, unable to adjust and optimize the direction of pipeline laying according to changes in environmental conditions. At present, the construction machinery and equipment used for offshore pipeline laying are mainly pipeline laying ships. After passing through the tensioner, the pipeline is lowered into the water, so that the pipeline is laid on the seabed, and the laying an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/16F16L1/20F16L1/235
CPCF16L1/16F16L1/202F16L1/207F16L1/235
Inventor 佘福元皋黎明田志忠裴延康叶建阳孙艺萌
Owner CCCC THIRD HARBOR ENG
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