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Plugging agent for under-pressure plugging repair and construction method of plugging agent

A technology of plugging leakage under pressure and construction method, applied in the direction of adhesive, adhesive type, adhesive additive, etc., can solve the problem of lack of protective repair measures for pipelines

Inactive Publication Date: 2020-08-25
青岛海弗莱安全科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is only suitable if the structure is sound and no perforations have occurred in the metal surface
However, there is a lack of protective repair measures for pipelines that have been perforated by corrosion

Method used

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  • Plugging agent for under-pressure plugging repair and construction method of plugging agent
  • Plugging agent for under-pressure plugging repair and construction method of plugging agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to figure 1 and figure 2 As shown, when a plugging agent for leak plugging repair under pressure provided by Embodiment 1 of the present invention is used for leak plugging of pipelines under pressure, the plugging block 1, reinforcement layer 2, Flame-retardant and anti-corrosion paste layer 3, flame-retardant and anti-corrosion tape layer 4, oily barrier layer 5, anti-corrosion protective cover 6 and anti-sticking, stain-resistant and weather-resistant surface coating 7, wherein the plugging block 1 is damaged through the corrosion perforation on the pipeline 9 Point 8 goes deep into the pipeline. The plugging block 1 includes the inner part of the pipe, the wall part and the outer part of the pipe. The outer part of the pipe is larger than the inner part of the pipe. Under the action of the layer, it is fitted and fixed on the outer wall of the pipeline, the plugging block 1 is embedded in the reinforcement layer, and the reinforcement layer 2 is coated on th...

Embodiment 2

[0055] Based on the same inventive concept, Embodiment 2 of the present invention provides a construction method of a plugging agent for leak plugging and repair under pressure. The construction method uses the above-mentioned plugging agent for leak plugging and repair under pressure. The construction methods mentioned above include:

[0056] (1) Clean the surface of the metal pipe structure in the construction area to remove oil, salt, and water, and polish it to a St2 standard or above until the surface of the metal pipe structure is free of steel thorns, attachments, oxide scales and obvious bubbling.

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Abstract

The invention discloses a plugging and reinforcement material for under-pressure plugging repair and a construction method, and belongs to the technical field of surface engineering; a plugging blockis adopted to perform plugging repair on a corrosion pit hole in a pipeline; the repaired part is reinforced by adopting fast-curing special epoxy repair resin with excellent corrosion resistance anda carbon fiber felt; the repaired part and the pipeline form a whole after being reinforced, and the combination between the plugging reinforcing layer and the pipeline is not influenced by normal vibration during normal operation and occasional vibration with certain strength; sulfydryl in the component A of the plugging agent can react with epoxy groups in the component B of the plugging agent,so a polymer containing a secondary hydroxyl group and a thioether bond is generated; tertiary amine and other amine compounds have a strong promotion effect on the reaction, the reaction rate is muchfaster than the reaction rate of amine and epoxy groups, and the reaction can be carried out at low temperature and even at 0 DEG C; the alkaline energy of the amine promoter is increased to increasethe reaction rate, and toughening and curing of epoxy resin can be promoted.

Description

technical field [0001] The invention relates to the technical field of surface engineering, in particular to a plugging agent for leak plugging repair under pressure and a construction method thereof. Background technique [0002] Urban pipelines are an important part of municipal supporting facilities, which are related to the daily life of thousands of households. During the service process of the urban pipeline network, the buried part of the pipeline mainly faces relatively serious soil corrosion, and the ground part mainly suffers from the corrosion hazards of the atmospheric environment. For the buried and ground main pipelines, most operation and management companies have adopted effective corrosion measures. Protective measures. However, people often ignore the complex corrosion problems faced by the pipeline at the transition point from below the ground to above the ground. This part of the pipeline is usually called the part of the ground pipe. Its corrosion probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J181/02C09J163/00C09J11/04C09J11/06C09J11/08F16L55/162F16L55/168
CPCC08K2003/0856C08K2201/014C08L2203/18C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J181/02F16L55/162F16L55/168C08L63/00C08L75/02C08L79/02C08K13/04C08K7/26C08K5/5435C08K3/08C08K7/08
Inventor 杨小刚王向阳杜传宝
Owner 青岛海弗莱安全科技有限公司
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