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Composite material pipeline

A composite material and pipeline technology, used in pipeline protection, pipeline anti-corrosion/rust protection, pipes, etc., can solve the problems of increasing the difficulty of steel pipe handling and installation, increasing the weight and volume of steel pipes, and achieve excellent corrosion resistance. , Improve corrosion resistance, wide application effect

Active Publication Date: 2015-06-03
苏州云逸航空复合材料结构有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology also overcomes the above problems by increasing the wall thickness of the steel pipe, but it will increase the weight and volume of the steel pipe per unit length, and increase the difficulty of handling and installation of the steel pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1 and 2 As shown, the composite material pipeline includes a pipeline body 1 . The pipeline main body 1 includes a conductive liner 11, and the conductive liner 11 is provided with a lumen. The conductive liner 11 is made of titanium alloy or thermoplastic resin mixed with conductive material, and the thermoplastic resin is polyvinylidene chloride resin, high-density polyethylene resin, polypropylene resin, polycarbonate resin, acrylonitrile-butadiene-benzene One or any of ethylene copolymer resin, polyvinyl chloride resin, polymethyl methacrylate resin, polytetrafluoroethylene resin and nylon-11 (ie polyω-amino undecanoyl) resin, the conductive material can be It is conductive graphite, carbon fiber or carbon powder. In this implementation, the conductive inner container 11 is preferably made of titanium alloy.

[0054] The outer surface of the conductive liner 11 is covered with a first fiber reinforced resin layer 12 . The first fiber-reinforced r...

Embodiment 2

[0057] Such as Figure 4 and 5 As shown, the composite material pipeline includes a pipeline body 1 . The pipe body 1 includes a conductive liner 11 . The conductive liner 11 is made of titanium alloy.

[0058] The outer surface of the conductive liner 11 is covered with a thermoplastic resin sealing layer 13 . The thermoplastic resin sealing layer 13 is made of thermoplastic resin. The thermoplastic resin is polyvinylidene chloride resin, high-density polyethylene resin, polypropylene resin, polycarbonate resin, acrylonitrile-butadiene-styrene copolymer resin, polyvinyl chloride resin, polymethyl methacrylate resin, One or more of polytetrafluoroethylene resin and nylon-11 (ie, polyomega-aminoundecanoyl) resin.

[0059] The outer surface of the thermoplastic resin sealing layer 13 is covered with the first fiber-reinforced resin layer 12 . The first fiber-reinforced resin layer 12 includes first fibers and a first resin. The first fiber-reinforced resin layer 12 is for...

Embodiment 3

[0061] One of the differences between this embodiment and Embodiment 2 is: the conductive liner 11 is made of thermoplastic resin mixed with conductive material. The thermoplastic resin is polyvinylidene chloride resin, high-density polyethylene resin, polypropylene resin, polycarbonate resin, acrylonitrile-butadiene-styrene copolymer resin, polyvinyl chloride resin, polymethyl methacrylate resin, One or more of polytetrafluoroethylene resin and nylon-11 (ie, polyomega-aminoundecanoyl) resin. The conductive material is conductive graphite, carbon fiber or carbon powder.

[0062] The second difference between this embodiment and Embodiment 2 is that the thermoplastic resin sealing layer 13 is replaced by an inert metal layer. The thin layer of inert metal is formed by winding the outer surface of the conductive liner 11 sequentially with an inert metal film. The inert metal film is a copper film. Each layer of copper film is lapped during winding, and sealing resin or glue i...

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Abstract

The invention discloses a composite material pipeline. The composite material pipeline is characterized by comprising a pipeline main body, wherein the pipeline main body comprises a tubular conductive liner; the conductive liner is provided with a pipe cavity; a first fiber enhanced resin layer covers the outer surface of the conductive liner. According to the composite material pipeline, the conductive liner is made of a titanium alloy or thermoplastic resin, has an excellent anti-corrosion performance on corrosive substances in the pipeline, and can be used for resisting corrosion of most of salts, acids and alkalis, and particularly can resist the corrosion of acidic gas including hydrogen sulfide, carbon dioxide and the like. The non-metal first fiber enhanced resin layer covering the outer surface of the conductive liner is a main stress layer, can bear gas pressure or liquid pressure in the pipeline, can resist the corrosion caused by chlorides in seawater outside the pipeline, and can effectively prevent the electrochemical corrosion to the pipeline and the liner; furthermore, the corrosion resistance of the pipeline is improved.

Description

technical field [0001] The invention relates to a composite material pipe. Background technique [0002] The gas or liquid delivery capacity of the pipeline can be increased by increasing the diameter of the pipeline, but the larger the diameter of the pipeline, the higher the pressure it will withstand. In the traditional gas transmission or liquid infusion process, steel pipes are generally used as the transmission pipeline. However, there are the following problems in the use of steel pipes. [0003] Taking natural gas transportation as an example, natural gas formed in sour oilfields often contains hydrogen sulfide (H 2 S). h 2 S dissolves in water vapor entrained in natural gas to form H 2 S aqueous solution, H 2 S aqueous solution is highly corrosive. steel pipe in H 2 Under the action of hydrogen ions in the S aqueous solution, it is depolarized and corroded to produce iron ions. Iron ions and H 2 The sulfur ions in the aqueous solution of S combine to form ...

Claims

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Application Information

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IPC IPC(8): F16L9/147F16L9/12F16L58/00H05F3/00
CPCF16L9/12F16L9/147F16L58/00H05F3/00
Inventor 俞麒峰贾大伟
Owner 苏州云逸航空复合材料结构有限公司
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