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Rotating shaft pipe end structure and method for pipe routing prevention and control for deep-sea pipelines

A pipe, prevention and control technology, applied in the direction of pipes/pipe joints/fittings, pipe laying and maintenance, mechanical equipment, etc., can solve the problems of pipe joint deformation, high cost, pipe damage, etc., to ensure rotatability and save energy Installation cost, effect of avoiding mechanical loss

Active Publication Date: 2021-04-27
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The value of the pipeline running continues to accumulate with the increase of the number of cycles, resulting in deformation and breakage at the joints of the pipeline, which poses a great threat to the safety of the pipeline system
[0003] In the current domestic and foreign engineering practice, there is no scientific and effective technical means to protect the pipeline, and the anchoring system with high cost and great influence on the original pipeline can only be used to forcibly drag the pipeline so that the pipeline will not be too large. axial deformation
The huge load added to the pipeline by the anchoring system may cause additional pipeline damage risks, and the anchoring system itself also has a certain risk of failure, resulting in the pipe routing effect cannot be completely eliminated

Method used

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  • Rotating shaft pipe end structure and method for pipe routing prevention and control for deep-sea pipelines
  • Rotating shaft pipe end structure and method for pipe routing prevention and control for deep-sea pipelines
  • Rotating shaft pipe end structure and method for pipe routing prevention and control for deep-sea pipelines

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Embodiment Construction

[0031] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0032] The phenomenon of deep-sea pipeline routing is common. The traditional anchoring system has poor effect on preventing pipeline routing, high cost, low reliability and additional risk of pipeline damage. By applying an axial resistance that changes with the displacement at the end of the pipe, the mechanism of the pipe routing phenomenon can be interfered and suppressed, thereby reducing or disappearing the pipe routing value. This pipe routing control method needs to attach a corresponding device to the end of the pipe, and requires the soil resistance of the device to change with the change of displacement, so that the end of the pipe is subject to variable resistance. The invention connects two rotatable wing plates with the end of t...

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Abstract

The present invention disclosed a rotating shaft -end structure and the method of preventing and controlling the control of the tube of the deep -sea pipeline, including the sleeve, the wing plate, and the limited block;Including the left wing and right wing plate, the left and right wing plates are set on both sides of the sleeve. The tail of the left and right wing plates connects the first end of the sleeve through the hinge, so that the left wing plate can surround the hinge of the left wing root hinge hingeRotate freely, the right -wing plate can rotate freely around the hinge of the roots of the right -wing plate; the limited block body includes the left -limited block and the right -limited block body.On the second ends of the sleeve, the left -limited block and the left -wing plate are relative to each other. The right limit block and the right of the right wing plate are relative to the minimum open angle of the left and right wing plates.The present invention is installed on one end of the pipeline, and the structure that can generate changes to the pipeline with a axial deformation of the pipeline is used to reduce or eliminate the pipeline pipeline phenomenon.

Description

technical field [0001] The invention relates to the control of deep-sea oil pipeline routing phenomena, in particular to a shaft-type pipe end structure and a method for the prevention and control of deep-sea pipeline routing. The structure that produces a variable reaction force to the pipeline can reduce or eliminate the phenomenon of pipe routing. Background technique [0002] my country's deep sea area has a large amount of oil reserves, and its development prospects are bright. The development of deep sea oil exploration technology and equipment is of great significance to ensure the security of my country's oil supply. The pipeline system is an important means of collection and distribution in deep sea oil exploitation. The length of the pipeline is generally long, and the temperature of the oil transported inside is relatively high. Deep-sea pipelines are regularly closed for routine inspections every year. Each cycle of opening and closing of the pipeline will cause...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/16F16L1/20
CPCF16L1/16F16L1/201
Inventor 洪兆徽付登锋刘文彬
Owner TIANJIN UNIV
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