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Connecting assembly for joining a fiber-reinforced plastic tube to a further part

A connection device, fiber composite technology, applied in the direction of pipeline connection arrangement, pipe/pipe joint/pipe fitting, mechanical equipment, etc.

Inactive Publication Date: 2010-06-09
FRIATEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage here is that only plastic pipes or plastic components can be connected to each other

Method used

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  • Connecting assembly for joining a fiber-reinforced plastic tube to a further part
  • Connecting assembly for joining a fiber-reinforced plastic tube to a further part

Examples

Experimental program
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Embodiment Construction

[0021] In this case, the connecting device comprises a cylindrical inner tube 10 made of a thermoplastic, for example polyethylene, polypropylene, polyamide or the like. The inner tube 10 terminates on one side in a reinforcing ring 12 . Here, the outer diameter of the inner tube 10 remains substantially constant over its length, while the inner diameter becomes smaller in the region of the reinforcing ring 12, thereby forming a positioning edge for the tube pushed into the inner tube 10, which The pushed-in tube is, for example, an RTP tube. On the surface of the inner tube 10 facing the tube axis C of the inner tube 10 is arranged a heating coil 14 which can be connected to an energy source via an electrical contact so that the pushed-in The tube is welded to the connection means, here only one of said electrical contacts 16 is shown. The transition piece 20 is pushed into the inner tube 10 so that the annular flange 22 rests against the second locating surface of the rein...

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PUM

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Abstract

Disclosed is a connecting assembly for joining a fiber-reinforced plastic tube or an armored plastic tube to a further part. Said connecting assembly comprises an inner tube that is made of a thermoplastic material and is provided with a conductor arrangement for electric welding on the surface facing the tube axis. The inventive connecting assembly is characterized by a transition piece that is inserted into the inner tube along a coupling area as well as an armoring layer which surrounds the inner tube and the transition piece at least in part. The armoring layer forms a material bond with the inner tube while being non-positively connected to the transition piece.

Description

technical field [0001] The invention relates to a connecting device for connecting a fiber-composite plastic pipe or a reinforced plastic pipe to a subsequent component, the connecting device having an inner pipe made of thermoplastic, at its side facing the pipe axis Wiring for electric welding is provided on the surface. Background technique [0002] For some years, fiber-reinforced plastic pipes, so-called RTP pipes (RTP=reinforced thermoplastic pipe), have been used primarily in the offshore sector for the transport of crude oil and gas media. This is a multilayer pipe with an inner layer made of polyethylene and a centrally applied fiber layer, for example made of aramid fibers, and an outer jacket likewise made of polyethylene. This tube can be used in pressure and temperature ranges up to 80 bar and 60°C. Tubes made of cross-linked polyethylene can also be used, as can tubes made of polyamide. In general, a reinforced plastic pipe should generally be referred to he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L47/03F16L47/24
CPCF16L47/24F16L47/03B29C65/342B29C65/3468B29C65/561B29C66/1222B29C66/1224B29C66/52292B29C66/52295B29C66/52296B29C66/52298B29C66/5344B29C66/612B29C66/71B29C66/721B29C66/72141B29C66/73921B29C66/742
Inventor D·埃萨瑟W·戈尔克F·梅尔
Owner FRIATEC AG