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Split type hydraulic repair device for submarine pipelines

A subsea pipeline, split technology, applied in the direction of pipeline laying and maintenance, pipe components, pipes/pipe joints/pipe fittings, etc.

Active Publication Date: 2016-07-20
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 devices, the purpose of the present invention is to provide a split hydraulic repair device suitable for severe damage or large deformation of submarine pipelines

Method used

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  • Split type hydraulic repair device for submarine pipelines
  • Split type hydraulic repair device for submarine pipelines
  • Split type hydraulic repair device for submarine pipelines

Examples

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Embodiment Construction

[0043] exist figure 1 Among them, the split-type hydraulic repair subsea pipeline device is composed of a pipe end sealer 1, a repairer 2, a hydraulic propulsion system 3, a sliding sealer 4 and a sliding body 5. Before the repaired submarine pipeline device is assembled, the outer surfaces of the pipe end sealer 1, the repairer 2, the sliding sealer 4 and the main parts of the sliding body 5 are sprayed with paint respectively to prevent seawater corrosion; The slip ring of the sliding sealer 4 should move flexibly along the sliding body of the sliding body 5 without blockage; the sliding key of the sliding body 5 should slide normally along the grooves of the repairing body of the restorer 2 without blockage , and keep the inner walls of the repairer 2 and the sliding body 5 clean; at the same time, check whether the metal rings of the pipe end sealer 1 and the metal rings of the repairer 2 are damaged, and check the pin shafts and thread joints Whether it is firm and free ...

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Abstract

The invention provides a split type hydraulic repair device for submarine pipelines. The split type hydraulic repair device is applied to the repair work of the submarine pipelines badly broken. According to the repair device, the multiple sealing technologies of conical metal loops, trapezoidal metal loops and metal rings are adopted, and the submarine pipelines can be fast repaired according to the special structures of split type symmetric thick-wall cylinders and hydraulic propelling systems; the double metal loop sealing technologies of the bi-conical metal loops and the trapezoidal metal loops are organically combined, and fixing and sealing between the repair device and cut pipelines can be realized; according to the multiple metal sealing technologies of combining the pyramid metal loops with the hexagonal metal rings, fixing and sealing between pipe end sealing devices and repairers as well as between the repairers and slipping sealing devices and slipping bodies can be realized; the hydraulic propelling systems provide driving force, and therefore the pipe end sealing devices, the repairers and the slipping sealing devices can be propelled in the axial directions of the slipping bodies, fast and automatic joint between the repair device and the two pipe ends of the cut pipelines can be realized, and the repair device has the advantages that sealing is reliable and the repair time is short.

Description

technical field [0001] The invention relates to a device for repairing a submarine pipeline in the field of marine engineering, in particular to a split-type hydraulic repair device for severely damaged submarine pipelines. Background technique [0002] Due to the particularity of the underwater operating conditions of the submarine pipeline in the field of ocean engineering, there are risks such as medium corrosion, ship anchoring, geological disasters, and third-party damage in ocean development, which may cause damage to the submarine pipeline. Once the submarine pipeline leaks or Severe damage will not only cause marine water pollution, waste of oil and gas resources, and interruption of offshore production, but also adversely affect the normal production of its downstream and end users. [0003] The specific repair technologies and schemes of submarine pipelines vary according to the damage form and operating water depth. The main repair methods currently adopted can be...

Claims

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Application Information

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IPC IPC(8): F16L55/17F16L21/06
CPCF16L1/26F16L55/17F16L21/06
Inventor 刘新福谭继文刘春花周超于邦廷贺相军
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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