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Rapid repairing connection device for off-center adjustable type submarine pipeline

A technology of subsea pipelines and connecting devices, applied in the direction of pipes/pipe joints/pipes, pipe elements, mechanical equipment, etc.

Inactive Publication Date: 2016-07-06
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to effectively solve the problem of rapid repair of submarine pipelines and overcome the defects and deficiencies of existing repair technologies and equipment, the purpose of the present invention is to provide a quick repair connection device suitable for underwater replacement of pipe sections when submarine pipelines leak or are damaged

Method used

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  • Rapid repairing connection device for off-center adjustable type submarine pipeline
  • Rapid repairing connection device for off-center adjustable type submarine pipeline
  • Rapid repairing connection device for off-center adjustable type submarine pipeline

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Embodiment Construction

[0031] exist figure 1 Among them, the adjustable deflection type subsea pipeline quick repair connection device is composed of a deflection adjuster 1, a propulsion body 2, a main sealer 3, a positioner 4 and an auxiliary sealing box 5. Before the quick repair connection device is assembled, the outer surfaces of the main parts of the deflection adjuster 1, the propulsion body 2, the main sealer 3 and the positioner 4 are respectively subjected to anti-corrosion and painting treatment; the spherical joint of the deflection adjuster 1 should rotate flexibly in any direction And there is no blockage, the propulsion body 2 and the main sealer 3, the positioner 4 and the main sealer 3, and the auxiliary sealing box 5 gland and the auxiliary sealing body can move flexibly, and the locking mechanism of the positioner 4 can slide normally. And keep the cavity of the main sealer 3, positioner 4 and auxiliary seal box 5 clean; at the same time, check whether there are any defects and d...

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Abstract

The invention provides a rapid repairing connection device for an off-center adjustable type submarine pipeline, which is applied to repairing connection work for replacement of a submarine pipeline underwater. The connection device is formed by organically combining a plurality of types of sealing technologies including metal, non-metal and the like, so that the sealing between the connection device and the pipeline is guaranteed. An off-center adjusting device realizes off-center adjustment of the submarine pipeline through spherical match of an off-center adjusting body and an off-center adjusting seat and the common effect of all spherical gaskets, and the sealing between the connection device and the newly replaced pipeline is realized by adopting the sealing of an O-shaped sealing ring and the sealing of a metal ring; a propelling body is used for axially propelling and extruding each metal ring and each metal loop of a main sealing device, so that the sealing between the connection device and a prefabricated loop surface of a cutting pipeline, and the sealing between the propelling body and the main sealing device are realized; automatic positioning of the connection device is realized by a positioning device according to a locking mechanism, and an auxiliary sealing box realizes the fixing and sealing between the connection device and an original loop surface of the cutting pipeline by adopting the sealing of packing and the sealing of the O-shaped sealing ring, so that the connection device has the characteristics of short repairing time, low working intensity and the like.

Description

technical field [0001] The invention relates to a quick-repair connecting device used when a submarine pipeline in the field of marine engineering leaks or is damaged, in particular to an eccentric adjustable quick-repair connecting device when subsea pipelines are replaced underwater. Background technique [0002] The submarine pipeline plays an important role in the oil and gas production in the field of offshore engineering. It connects offshore platforms and platforms, offshore platforms and land terminals, and offshore platforms and FPSOs (floating production storage and offloading units) into an organic whole. Oil and gas well production fluid, qualified crude oil, associated gas and other oil and gas media are exported, chemical agent delivery and water injection are important production tasks. Due to the particularity of the operating environment of the submarine pipeline, there are actual conditions such as high risk and high failure probability. Once a leak occurs,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/172
CPCF16L55/172
Inventor 刘新福王优强刘春花江京亮石云周晓东
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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