Invention Grant
US07987875B2 Flexible pipe, its manufacture and use 有权
柔性管,其制造和使用

  • Patent Title: Flexible pipe, its manufacture and use
  • Patent Title (中): 柔性管,其制造和使用
  • Application No.: US11631930
    Application Date: 2005-07-01
  • Publication No.: US07987875B2
    Publication Date: 2011-08-02
  • Inventor: Jan Rytter
  • Applicant: Jan Rytter
  • Applicant Address: DK Brondby
  • Assignee: NKT Flexibles I/S
  • Current Assignee: NKT Flexibles I/S
  • Current Assignee Address: DK Brondby
  • Agency: Pearne & Gordon LLP
  • Priority: DK200401077 20040708; DK200500031 20050107
  • International Application: PCT/EP2005/053143 WO 20050701
  • International Announcement: WO2006/005689 WO 20060119
  • Main IPC: F16L11/00
  • IPC: F16L11/00
Flexible pipe, its manufacture and use
Abstract:
A flexible, typically un-bonded, armored pipe, and a method manufacturing a flexible pipe. The pipe has a center axis and comprises an inner liner surrounded by a radial armoring and an axial armoring, the radial and axial armoring each comprising at least one armoring layer of armoring profiles wound with winding angles αi relative to the center axis. The winding angle of the innermost armoring layer αinnermost is larger than the winding angle of the outermost armoring layer αoutermost. The outer radial armoring layer has sufficient strength and flexibility to prevent prohibitively large radial deformations of underlying axial armoring layers without considerably increasing the radial contact pressure on underlying axial armoring layer. At least one fibrous layer, comprising at least two fibrous cords wound on an underlying layer, surrounds the outermost armoring layer. The flexible pipe is useful in terrestrial and/or subsea transport of fluids at elevated temperature and/or pressures.
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