Strengthening method of pasting carbon fiber sheet on inner wall of large-diameter pipeline

A technology of carbon fiber sheet and large diameter, which is applied in the direction of chemical instruments and methods, tubular objects, lamination devices, etc., can solve the problem of damaging the pipe material, achieve the effect of solving the reinforcement problem without damaging the mechanical properties

Inactive Publication Date: 2017-02-22
WUDA JUCHENG STRUCTURE CO LTD
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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 reinforcement method for pasting carbon fiber sheets on the inner wall of a large-diameter pipeline to solve the problems that the existing large-diameter pipeline inner wall reinforcement method will damage the pipeline material.

Method used

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  • Strengthening method of pasting carbon fiber sheet on inner wall of large-diameter pipeline
  • Strengthening method of pasting carbon fiber sheet on inner wall of large-diameter pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, the reinforcement of carbon fiber cloth 2+carbon fiber plate 3 specifically includes the following steps:

[0033] Step 1: First, use an angle grinder to smooth the inner wall of the pipe 1, then use oil-free compressed air to blow off the dust in the pipe 1; dry.

[0034] Step 2: Prepare the bottom glue, and then apply the bottom glue evenly on the inner wall of the pipe 1 with a roller brush or a brush, so that the thickness of the bottom glue meets the design requirements. When preparing the bottom glue, the main agent and curing agent of the bottom glue should be placed in a clean container according to the formula ratio specified for the bottom glue, and stirred evenly; at the same time, depending on the actual situation on site, ensure that the bottom glue is used up once within the applicable period.

[0035] Step 3: After the surface of the bottom layer is dry to the touch, if the surface of the bottom layer is flat, proceed to step 4; if the surf...

Embodiment 2

[0041] Embodiment two, two layers of carbon fiber cloth 2 reinforcement, then specifically include the following steps:

[0042] Step 1: First, use an angle grinder to smooth the inner wall of the pipe 1, then use oil-free compressed air to blow off the dust in the pipe 1; dry.

[0043] Step 2: Prepare the bottom glue, and then apply the bottom glue evenly on the inner wall of the pipe 1 with a roller brush or a brush, so that the thickness of the bottom glue meets the design requirements. When preparing the bottom glue, the main agent and curing agent of the bottom glue should be placed in a clean container according to the formula ratio specified for the bottom glue, and stirred evenly; at the same time, depending on the actual situation on site, ensure that the bottom glue is used up once within the applicable period.

[0044]Step 3: After the surface of the bottom layer is dry to the touch, if the surface of the bottom layer is flat, proceed to step 4; if the surface of t...

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Abstract

Disclosed is a method of pasting a carbon fiber sheet on an inner wall of a large-diameter pipeline. The first tier of the carbon fiber sheet is pasted by a carbon fiber cloth (2), and the pasting of the carbon fiber cloth (2) comprises the steps of rubbing down an inner wall of a pipeline (1), keeping the surface of the inner wall of the pipeline (1) clean and arid, smearing uniformly a subbing glue on the inner wall of the pipeline (1), and using hands to gently press and paste the carbon fiber cloth (2) on a pasting area after the surface of the subbing glue is dry to touch or the surface of a leveling glue is dry to touch, installing a support device, dismantling the support device, adopting an angle grinder to grind carbon fiber cohesive glue which is squeezed out by the carbon fiber cloth (2), thus guaranteeing levelness of an entire structure plane. The method of pasting the carbon fiber sheet on the inner wall of the large-diameter pipeline realizes reinforcing of the inner wall of the large-diameter pipeline (1) which is buried underground, thus solving the problem of reinforcing the large-diameter pipeline buried underground.

Description

technical field [0001] The invention relates to a method, more specifically to a reinforcement method for pasting carbon fiber sheets on the inner wall of a large-diameter pipeline, and belongs to the technical field of large-diameter pipeline reinforcement. Background technique [0002] At present, when some large-diameter pipelines buried underground are reinforced, the outer wall reinforcement conditions are not available, and only the inner wall reinforcement can be carried out. The traditional method of strengthening the inner wall of large-diameter pipes is mainly suitable for the reinforcement of concrete pipes. Most of them will damage the pipe material and cannot meet the needs of use. Contents of the invention [0003] The object of the present invention is to provide a reinforcement method for pasting carbon fiber sheets on the inner wall of a large-diameter pipeline to solve the problems that the existing large-diameter pipeline inner wall reinforcement method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B7/12B32B9/00B32B9/04B32B33/00B32B37/00B32B37/12
CPCB32B1/08B32B5/02B32B7/12B32B9/007B32B9/047B32B33/00B32B37/003B32B37/12B32B2262/106B32B2307/50B32B2307/73B32B2597/00
Inventor 高作平周剑波周志勇谭星舟张畅
Owner WUDA JUCHENG STRUCTURE CO LTD
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