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Pressurized gasbag of pipeline repair reinforcing layer as well as preparation method and application thereof

A pipeline repairing and reinforcing layer technology is applied in the field of pipeline repairing and reinforcing layer pressurized airbag and its preparation and application, which can solve the problems of safe operation and integrity management of in-service pipelines, etc.

Active Publication Date: 2013-03-20
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of these phenomena has brought new problems to the safe operation and integrity management of in-service pipelines

Method used

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  • Pressurized gasbag of pipeline repair reinforcing layer as well as preparation method and application thereof
  • Pressurized gasbag of pipeline repair reinforcing layer as well as preparation method and application thereof
  • Pressurized gasbag of pipeline repair reinforcing layer as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0103] The implementation process and beneficial effects of the present invention are described in detail below through specific examples, aiming to help readers better understand the essence and characteristics of the present invention, and not as a limitation to the scope of implementation of this case.

[0104] Glue preparation

[0105] Prepare the glue solution according to the ratio of dry glue: solvent (ethyl ester) = 1:4, and add KH550 silane coupling agent at 5 g / kg when used. Using neoprene as the rubber material for attachment, its formula is as follows:

[0106]

[0107] a. Cut 2 pieces of aramid cloth with a length of 1140×340, soak one side of them with 5% KH550 alcohol solution, and place them in an oven at 60°C to dry. Paint according to the following regulations, pay attention to the fixed shape during painting, and use it as a reinforcement layer of the capsule skin:

[0108]

[0109] b. Cut out a piece of aramid cloth with a length of 1110×310 as the ...

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Abstract

The invention relates to a pressurized gasbag of a pipeline repair reinforcing layer as well as a preparation method and an application thereof. The gasbag is prepared from aramid fiber on which a rubber material is coated, wherein the rubber material comprises the following components in parts by weight: 80 to 100 parts of chloroprene adhesive, 2 to 8 parts of zinc oxide, 3 to 6 parts of magnesium oxide, 1 to 3 parts of stearic acid, 15 to 30 parts of carbon block, 5 to 15 parts of barium sulfate, 5 to 15 parts of transformer oil, 10 to 20 parts of o-dibutyl ester, and 0.2 to 0.8 part of ethylene thiourea (NA-22). By the steel pipeline repair reinforcing uniform pressure device and method developed by the invention, the repair construction problems of abhesion, demixing, hollowing and the like occuring after the pressurization-free construction process can be effectively solved.

Description

technical field [0001] The invention relates to a pipeline repair reinforcement layer pressurized air bag and its preparation method and application. Background technique [0002] Due to the advantages of safe and convenient construction, non-stop transportation, no need for welding operations, good designability and corrosion resistance, the fiber composite repair and reinforcement technology has received great attention in the world, and has been widely used in the repair and repair of steel pipeline structures. powerful. At present, the products used in composite repair and reinforcement technology are mainly composed of three parts, which are glass fiber or carbon fiber composite material kits, interlayer adhesives and defect filling materials. The reinforcement and repair construction techniques include preforming and wet winding. [0003] In recent years, based on many years of on-site construction experience and the inspection and research of various repair and reinf...

Claims

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Application Information

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IPC IPC(8): D06M15/693D06M11/74D06M13/224D06M13/02D06M11/56D06M11/44D06M13/188D06M13/432D06M13/513B32B37/12B32B37/00B32B27/02F16L55/168F16L55/18
Inventor 马卫锋罗金恒赵新伟蔡克陈志昕
Owner BC P INC CHINA NAT PETROLEUM CORP
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