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Ultra-deep water multifunctional flexible pipe and manufacturing method thereof

A manufacturing method and multi-purpose technology, applied in the direction of hoses, pipes, applications, etc., can solve the problems of poor gas permeability resistance, poor flexibility, poor pressure resistance, etc., and achieve low high temperature and high pressure resistance, high specific strength, and low installation cost. Effect

Pending Publication Date: 2017-01-04
WEIHAI NACHUAN PIPE FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a corrosion-resistant, wear-resistant, pressure-resistant technical problem aimed at the technical problems of existing marine pipelines that are easy to corrode, easy to wear, poor in pressure resistance, poor in gas permeability resistance and poor in flexibility. Ultra-deep water multi-purpose flexible pipe with good, good gas permeability resistance and good flexibility and its manufacturing method

Method used

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  • Ultra-deep water multifunctional flexible pipe and manufacturing method thereof
  • Ultra-deep water multifunctional flexible pipe and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) Extrude ultra-high molecular weight polyethylene (UHMWPE) through an extruder to obtain the inner liner 1. The extrusion process conditions are as follows: extrusion thickness 30mm, extrusion temperature 150-180°C, vacuum degree 0.03MPa, traction speed 3m / min.

[0060] (2) Preheat the reinforcement tape with hot air, and then roll it into the winding drum of the winding machine, and heat it with laser to make it welded on the inner liner 1 while winding. When the first layer of reinforcement tape is wound, the reinforcement tapes of other layers are wound in the same manner one after another, and after the winding is completed, it is cooled and shaped by a cooling box containing cooling water to form the reinforcement layer 2 .

[0061] The width of the reinforcement tape is 30mm, the thickness is 0.2mm, the number of winding layers is 160, and the winding angle is ±30°, that is, the first layer is +30° or -30°, and the second layer is opposite to the first layer. ...

Embodiment 2

[0066] (1) The materials of the inner layer 4 , the middle layer 5 and the outer layer 6 are composited into one by three-layer co-extrusion to obtain the inner lining layer 1 . The inner layer 4 is a polyphenylene sulfide (PPS) or vinyl alcohol copolymer (EVCOH) layer, the middle layer 5 is an adhesive adhesive layer such as hot melt adhesive, and the outer layer 6 is a polyethylene (PE) layer.

[0067] (2) The reinforcing tape is preheated by the heating box, and then rolled into the winding drum of the winding machine, and laser heating is carried out while winding to make it welded to the inner liner 1 . When the first layer of reinforcement tape is wound, the reinforcement tapes of other layers are wound in the same manner one after another. After the winding is completed, the reinforcement layer 2 is formed by cooling and shaping in a cooling box containing cold air.

[0068] The width of the reinforcement tape is 50mm, the thickness is 0.35mm, the number of winding laye...

Embodiment 3

[0075] (1) The materials of the inner layer 4 , the middle layer 5 and the outer layer 6 are composited into one by three-layer co-extrusion to obtain the inner lining layer 1 . The inner layer 4 is a polyether ether ketone (PEEK) layer, the middle layer 5 is a hot melt adhesive layer, and the outer layer 6 is a polyamide (PA) layer.

[0076] (2) Preheat the reinforcement tape by laser, and then roll it into the winding drum of the winding machine, and heat it with laser to make it welded on the inner liner 1 while winding. When the first layer of reinforcement tape is wound, the reinforcement tapes of other layers are wound in the same manner one after another, and after the winding is completed, it is cooled and shaped by a cooling box containing cooling water to form the reinforcement layer 2 .

[0077] The width of the reinforcement tape is 70mm, the thickness is 0.25mm, the number of winding layers is 70, and the winding angle is ±70°, that is, the first layer is +70° or ...

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Abstract

The invention provides an ultra-deep water multifunctional flexible pipe and a manufacturing method thereof, and is used for solving the technical problem that the existing ocean pipeline is easy to corrode, easy to wear, relatively poor in pressure resistance, relatively poor in gas permeation resistance and relatively poor in flexibility. The ultra-deep water multifunctional flexible pipe is provided with a lining layer, wherein the exterior of the lining layer is connected with a reinforcing layer in a fusion manner, a functional layer is wound outside the reinforcing layer, and the functional layer is wrapped by a protective layer. The invention also provides a manufacturing method of the ultra-deep water multifunctional flexible pipe. The ultra-deep water multifunctional flexible pipe and the manufacturing method thereof can be widely applied to the fields such as petroleum, gas, chemical industry, municipal engineering and the like.

Description

technical field [0001] The invention relates to a pipe material and a manufacturing method thereof, in particular to an ultra-deep water multipurpose flexible pipe and a manufacturing method thereof. Background technique [0002] The research and development of marine engineering structures and equipment directly affects the exploration, development and utilization of marine resources, which is of great significance. Offshore pipeline is an important part of offshore equipment and a key link between subsea production systems and floating devices. Its design and product selection are of great significance to oil and gas development. Marine pipelines are often used for mixed transportation of oil, gas, water and other media, so they must have the characteristics of high pressure resistance, corrosion resistance, and good air tightness. Existing marine pipelines are mainly divided into two types: metal pipelines (mainly steel pipelines) and flexible pipelines. [0003] Tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/12B29D23/00
CPCF16L11/045F16L11/12B29D23/00
Inventor 时晨王森咸大鹏王晓欣慈胜宗孙晓林黄少君
Owner WEIHAI NACHUAN PIPE FITTINGS
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