Coiled plastic composite pipe reinforced with steel wire

A technology of reinforced plastics and composite pipes, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., to achieve the effect of convenient laying, small bending radius, hoop and axial strength and pressure bearing capacity

Inactive Publication Date: 2013-04-24
河北宇通特种胶管有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In view of the existing problems, various plastic composite pipes have appeared in the field of pipeline technology, such as: Chinese patent 200410007511.2 discloses a flexible composite high-pressure pipeline, which bears Pressure ≤ 32MPa, temperature resistance ≤ 65°C; Chinese patent 200920048665.4 discloses a heat-resistant thermoplastic composite pipe, which bears pressure ≤ 15MPa, and temperature resistance ≤ 70°C; application requirements

Method used

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  • Coiled plastic composite pipe reinforced with steel wire
  • Coiled plastic composite pipe reinforced with steel wire
  • Coiled plastic composite pipe reinforced with steel wire

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Embodiment Construction

[0020] The structure of a coilable steel wire reinforced plastic composite pipe provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, it is a radial cross-sectional structure diagram of a coilable steel wire reinforced plastic composite pipe provided by the present invention. The structure constituting the reinforced plastic composite pipe includes an inner pipe layer 1 and an outer pipe layer 2 made of high-molecular polymer materials. Between the outer wall of the inner pipe layer and the inner wall of the outer pipe layer, a layer with a tensile strength greater than 1700Mpa is wound or braided. 1. A steel wire reinforcement layer 3 with a diameter of 0.2-2.4mm. The above-mentioned inner tube layer 1, steel wire reinforcement layer 3 and outer tube layer 2 are combined into one structure.

[0022] Such as figure 2 , 3 As shown, in the structure constituting the abov...

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Abstract

The invention belongs to the technical field of a plastic composite pipe, and discloses a coiled plastic composite pipe reinforced with a steel wire. The technical scheme includes that an inner tube layer and an outer tube layer are made of polymer materials, at least one steel wire reinforcing layer with tensile strength greater than 1700 Mpa and a diameter of 0.2-2.4mm is wound or braided between the outer wall of the inner tube layer and the inner wall of the outer tube layer, wherein the inner tube layer is constituted by an organosilane cross-linked polyethylene, the outer tube layer comprises 92-97 parts by weight of high density polyethylene and 5-8 parts by weight of carbon black master batch, and the inner tube layer, the fibrous layer and the protective layer are composited into one integral structure. The coiled plastic composite pipe reinforced with the steel wire has the advantages of small bending radius, high pressure resistance and high temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of plastic composite pipes, in particular to a coilable steel wire reinforced plastic composite pipe used in the fields of petroleum, chemical industry, ocean and the like. Background technique [0002] In recent years, with the rapid development of China's economy, the demand for energy in various industries has increased significantly, especially the dependence on oil and gas resources. However, large domestic oil fields are now in the period of secondary and tertiary production. In some cases, the operating pressure and temperature will be higher and higher. For example, Xinjiang Oilfield currently uses steel pipelines with an operating temperature of 80°C and a pressure of 32MPa. The existing oil and gas industry generally uses steel pipes or glass steel pipes for transporting media. Among them, steel pipes The disadvantages are heavy weight, easy corrosion, and short service life. The disadvantages of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08
Inventor 张鹏郝伟赵聪陈宝峰
Owner 河北宇通特种胶管有限公司
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