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Split type hydraulic repair subsea pipeline device

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

Inactive Publication Date: 2017-09-26
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 subsea pipeline device
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  • Split type hydraulic repair subsea pipeline device

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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 sliding ring of the sliding sealer 4 should move flexibly along the sliding body of the sliding body 5 without obstruction; the sliding key of the sliding body 5 should slide normally along each groove of the restoration body of the restoration apparatus 2 without obstruction. stagnation, and keep the inner walls of the restorer 2 and 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 restorer 2 are damaged, and check the pin shafts and threaded con...

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Abstract

The invention provides a split type hydraulic repairing submarine pipeline device, which is applied to the repairing operation when the submarine pipeline is seriously damaged. The repair device adopts multiple sealing technologies such as conical metal ring, trapezoidal metal ring and metal ring, and realizes rapid repair of submarine pipelines according to the special structure of the split symmetrical thick-walled cylinder and hydraulic propulsion system; The double metal ring sealing technology of the metal ring is organically combined to realize the fixation and sealing between the repair device and the cutting pipe; according to the multi-metal sealing technology of the single conical metal ring combined with each hexagonal metal ring, the pipe end sealer and the repairer are realized. And the fixing and sealing between the repairer, the sliding sealer and the sliding body; the hydraulic propulsion system provides the driving force to ensure that the pipe end sealer, the repairer and the sliding sealer are axially advanced along the sliding body to realize the repairing device and cutting. The two pipe ends of the pipeline are quickly and automatically connected, so that the repair device has the characteristics of reliable sealing and short repair time.

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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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/17F16L21/06
CPCF16L1/26
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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