Damage repair technology of pressure pipeline

A damage repair and pipeline technology, applied in the direction of pipe components, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problems of weak anti-corrosion ability of plastic pipes, limited service life of pipes, and lack of stiffness, etc., to achieve the construction period. Short, ensure no loss of prestress, low cost effect

Inactive Publication Date: 2017-07-14
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the weak corrosion resistance of plastic pipes, the service life of the pipes repaired by this method is limited. At the same time, because plastics are ductile materials and do not have too much rigidity, they are easily damaged by construction and third parties.

Method used

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  • Damage repair technology of pressure pipeline
  • Damage repair technology of pressure pipeline
  • Damage repair technology of pressure pipeline

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Experimental program
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Effect test

Embodiment Construction

[0044]The present invention will be described in detail below in conjunction with the accompanying drawings, but the implementation of the present invention is not limited to the following embodiments, and corresponding equivalent replacement measures can be taken due to specific engineering examples.

[0045] Such as figure 1 , figure 2 , image 3 and Figure 4 , a pressure-bearing pipeline damage repair process is characterized in that the process is carried out in the following steps:

[0046] A. Prepare carbon fiber cloth 4 of appropriate length according to the diameter of pressure-bearing pipeline 5, prepare enough repair agent, prepare enough adhesive, prepare torque wrench 15 with pointer disc 16, and prepare tensioning device 1;

[0047] The tensioning device 1 comprises: a base 18 with an arc-shaped bottom surface 19, a front axle sleeve 17 is fixed on the front of the top surface of the base 18, a rear axle sleeve 9 is fixed on the back of the top surface of the...

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Abstract

The invention discloses a pressure bearing pipe damage repair process. The process is performed by the following steps: a carbon fiber fabric (4), a repair agent, adhesive, a torque spanner (15) and a tensioning device (1) are prepared; the damage positioning is performed for a pressure bearing pipe (5), and an obstacle is removed; a foreign matter at a damage part is removed, and an area to be repaired is determined; after the repair agent is coated on the area to be repaired, the adhesive is coated; the carbon fiber fabric (4) is bonded on the adhesive, and the left and right ends of the carbon fiber fabric (4) are tightened by the tensioning device (1); the torque spanner (15) is clamped on a shaft head (10), and is wrenched to enable a finger of a dial (16) to reach preset torsion; all locking screws (3) are tightened, and the prestress of the carbon fiber fabric (4) is constant; the adhesive is uniformly coated on the surface of the carbon fiber fabric (4); and after the adhesive reaches the stated condensation period, the tensioning device (1) is disassembled to finish one-time repair process.

Description

[0001] 1. Technical field [0002] The invention belongs to pipeline repairing construction technology, and is mainly suitable for repairing pressure-bearing pipelines with prestressed fiber cloth. [0003] 2. Background technology [0004] Pressure pipelines are widely used in water supply and drainage, oil and gas, chemical engineering and many other engineering fields. With the increase of the service time of the pressure pipeline, due to the influence of factors such as production, storage and transportation, construction and use environment, damage will inevitably be caused by corrosion, aging, external force damage, etc., so that the damage of the pressure pipeline will eventually lead to accidents. [0005] In engineering practice, there are many repair methods for the damage of pressure-bearing pipelines, such as replacement reinforcement method, welding reinforcement method, fixture reinforcement method, and lining reinforcement method. However, there are many unavoid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/168
CPCF16L55/168F16L55/1683
Inventor 贾彬卢毅张春涛王勇刘潇王汝恒张誉
Owner SOUTHWEAT UNIV OF SCI & TECH
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