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Pouring repair method for leakage of underwater pipeline

A repair method and technology for underwater pipelines, applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve problems such as pipe breakage and underwater pipe leakage, and achieve permanent repair, solve leakage, and solve fracture problems. Effect

Active Publication Date: 2013-11-13
深圳市百安百科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for pouring and repairing underwater pipeline leakage, which can solve the problem of underwater pipeline leakage without dismantling the pipeline and replacing the pipeline, and can solve the danger of pipeline rupture caused by corrosion and thinning , can quickly, conveniently and permanently repair the leakage of underwater pipelines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation method 1: Its repair steps are: 1. Clean the leak and the peripheral area; 2. Block the leak with underwater forming repair materials; 3. Strengthen the fixation with cable ties; 4. Wait for underwater forming repair materials After hard drying, install the hoop that has been pre-sealed at the bottom and joints; 5. Start the pouring machine and start pouring underwater polymer casting materials; 6. Complete the underwater pouring process and stop feeding.

[0015] The operation method of step 1 is as follows: firstly, use a high-pressure water gun to clean the entire area of ​​the pipeline to remove surface debris, such as floating rust, sea oysters, etc.; then use a pneumatic horn around each leak Grinding machine to St2.0 level; Finally, use a pneumatic angle grinder to grind a few rings on the surface of the pipe to be repaired, which is required to reach St2.0 level or above to improve the bonding force. The area of ​​the rings is not less tha...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that the cable tie in step 3 can be replaced with a strong magnet, and other repair steps and operation methods are the same as Embodiment 1.

[0025] The described strong magnet has a thickness of 2 mm and is a single-sided magnet.

Embodiment

[0026] Embodiment: Repair the leakage that occurs at 10 meters to 30 meters underwater of the caisson pipe of an offshore oil platform.

[0027] The repair steps are:

[0028] 1. Divers dive into the leakage area of ​​the caisson pipe, fix themselves with strong magnets, and use high-pressure water guns to remove all loose attachments within the range of the hoop, such as sea oysters, floating rust, etc.;

[0029] 2. Divers grind the leak and surrounding area with a pneumatic angle grinder, handle the edge of the leak well, and require it to be treated to St2.0 level;

[0030] 3. Prepare the NPS8110 underwater molding repair material and transfer it to the polished tin plate, and pass it to the diver. The diver presses the leak and maintains an appropriate pressure;

[0031] 4. Another diver uses 2 stainless steel cable ties to fix the tin plate on the caisson pipe;

[0032] 5. Use the same method as above to plug all leaks;

[0033] 6. After 60 minutes, hoist the hoop that...

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Abstract

The invention discloses a pouring repair method for the leakage of an underwater pipeline and relates to the technical field of equipment repair. The pouring repair method comprises the following repair steps of: firstly, cleaning the leaking part and the periphery area; secondly, blocking the leaking part by using an underwater forming repair material; thirdly, reinforcing and fixing by using a ribbon or a strong magnet; fourthly, after the underwater forming repair material is completely dried, mounting a hoop of which the bottom and a seam crossing are sealed in advance; fifthly, starting a pouring machine and starting to pour an underwater polymer pouring material; and sixthly, finishing the underwater pouring process and stopping feeding. According to the pouring repair method disclosed by the invention, the problem of the leakage of the underwater pipeline can be solved under the condition that the pipeline is not detached and replaced; and in addition, the danger of cracking caused by thickness reduction of the pipeline due to corrosion can be overcome and the leakage of the underwater pipeline can be repaired quickly, conveniently and permanently.

Description

Technical field: [0001] The invention relates to the technical field of equipment repair, in particular to a pouring repair method for underwater pipeline leakage. Background technique: [0002] The leakage of underwater pipelines will not only cause waste, but also cause environmental pollution. Take the caisson pipe of an offshore oil platform as an example. The caisson pipe will be corroded by seawater and perforated to leak, thereby polluting the marine environment. If the leaking part is above the water, it can be repaired with common repair materials, but there is still no effective repair method for the pipeline under water. Generally, only temporary methods are used, such as wrapping rubber skin and clamping it with clips. This approach can only slow down the leakage, but cannot completely eliminate the leakage problem. Due to the dangerous construction and high maintenance costs, a permanent repair technology is urgently needed to solve the problem of corrosion an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/175F16L55/17
Inventor 鲁毅
Owner 深圳市百安百科技有限公司
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