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Method and apparatus for installation and repair of pipe system

A pipeline system and pipeline technology, applied in pipeline protection, mechanical equipment, heat exchange equipment, etc., can solve problems such as leakage

Inactive Publication Date: 2016-02-03
TSC INNOVATION AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause a weak spot in the weld where leakage can occur

Method used

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  • Method and apparatus for installation and repair of pipe system
  • Method and apparatus for installation and repair of pipe system
  • Method and apparatus for installation and repair of pipe system

Examples

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Embodiment Construction

[0019] method

[0020] The invention relates to a method for joining a piping system 1 . The pipe system 1 comprises at least two pipes 2 to be connected to each other. The pipe 2 is made of weldable plastic, polymer, material. refer to figure 1 .

[0021] The piping system 1 can be manufactured for conveying different kinds of gases, liquids, fluids, media, materials or substances, pressurized or not. The piping system 1 can have different designs and the piping 2 can have different configurations. The pipe 2 may comprise an inner pipe 3 placed inside the pipe 2 being the outer pipe 2 . The gap between the outer pipe 2 and the inner pipe 3 may be filled with a heat insulating material 4 . refer to figure 2 . In the following description, the wording "pipe 2" means the pipe to be welded with the casing, and "pipe 2" is the "outer pipe 2" if the pipe system is insulated.

[0022] As in district heating or district cooling piping systems, insulated piping systems are o...

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PUM

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Abstract

This invention concerns a method for joining or repairing a pipe system (1) that comprises a least two pipes (2) made of weldable plastic material comprising fitting a sleeve (5) made of weldable plastic material the distance between the two pipes (2), the sleeve (5) having a length A that exceeds the distance B between the mutually opposing pipes (2), such as to overlap each pipe end (2a, 2b) to a given extent C. The method has the working steps; placing an electrically conductive band (6) around one of the pipes (2), the band (6) having two ends (6a, 6b); connecting the band ends (6a, 6b)) to each other by placing the band ends (6a, 6b) overlapping each other; fitting the sleeve (5) over and against the pipe (2) and the band (6), and applying an electric current to the band (6) over a given period of time, thereby heating the band (6) to a determined temperature for a determined time and fusing the band (6) with the plastic surfaces of the pipe (2) and the sleeve (5) lying in abutment therewith to form a welding joint being fully executed around the pipe (2) and inside the sleeve (5). The invention also concerns an apparatus (12) to be used when working according to the method.

Description

technical field [0001] The invention relates to a method and a system for installation and maintenance of a piping system comprising at least two pipes made of weldable plastic material according to the preambles of independent claims 1 and 19 . Background technique [0002] Piping systems are used in many different transport situations and for transporting different kinds of gases, liquids, fluids, media, materia or substances inside pipes. The need to functionally attach pipes to each other is very important not only to protect the transported material inside the pipe system from leakage, but also from contamination or other damage from the outside. [0003] Some piping systems tend to be buried underground, which causes large stresses. There will be mechanical shocks to the pipe due to temperature changes causing the material to expand and contract. Piping systems are also exposed to water or moisture that can penetrate the piping system and corrode the steel pipes, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/34B29C65/30F16L47/03B29C65/22F16L21/00
CPCF16L58/181F16L59/20F16L13/0272B29L2023/225B29C65/344B29C65/3468B29C66/1122B29C66/30341B29C66/53241B29C66/72321B29C66/727B29C73/04B29C73/34B29C66/304B29C66/81471B29C66/0342B29C66/3494B29C66/73715B29C66/71F16L47/03B29K2023/06F16L21/00
Inventor 拉尔斯·冈纳森
Owner TSC INNOVATION AB