Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
  • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
  • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
  • F16L55/1651—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being everted
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
  • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
  • F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
  • F16L55/265—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means specially adapted for work at or near a junction between a main and a lateral pipe

Definitions

• the invention relates to a lining device for renovating the branch lines of pipelines by way of eversion, said lining device including a hose-shaped outer film and an inner sleeve-shaped, expandable reinforcing member adapted to cure when subjected to ultraviolet light, where said hose-shaped film is adapted at one end to be secured to the end of a tubular inserting member, and where said hose-shaped film at the op- posite end is sealingly secured to a closing member.
• This stocking lining includes a hose-shaped outer film and an inner sleeve-shaped, expandable reinforcing member of a suitable length before it is mounted inside a pipeline.
• the reinforcing member includes a reinforcing layer made of fibre glass and a polyester impregnation, as well as an inner film of a suitable plastic material.
• the lining device is placed inside the pipeline by being inserted into said pipeline by means of compressed air and by way of an eversion in such a manner that the inner film layer faces the pipeline. Subsequently, the reinforcing member is caused to abut the inner side of the pipeline by means of compressed air and then it is caused to cure by means of UV-irradiation.
• the lining device is mounted by being inserted with the above end in front into the tubular inserting member and forwards to the free end of said inserting member.
• both the end of the expandable film and the end of the expandable reinforcing member are everted about the end of the inserting member and mounted thereon in such a manner that the end of the sleeve- shaped reinforcing member is placed on the outer side of the inflatable part.
• the tubular inserting member is then moved into the inlet of a branch line, and subsequently the inflatable part is inflated and causes the end in question of the expandable reinforcing member to abut the inner side of the branch line.
• the entire lining device is blown into the branch line by means of compressed air while continu- ously being everted and the free end of the lining device being closed by means of a closing member.
• the inner sleeve-shaped, expandable reinforcing member has been everted onto the outer side of the film which is now positioned inside said reinforcing member.
• a continued supply of compressed air presses the remaining portion of the sleeve-shaped reinforcing member outwards and against the inner side of the branch line, where the pressure is maintained until said reinforcing member has cured, such as by being subjected to hot air or steam.
• the object of the invention is to provide a lining device of the above type which is suitable for use in combination with UV-lamps.
• the above object is according to the invention obtained by the closing member carrying a means for securing a train of UV-lamps.
• the securing means includes a roller for pulling the lamps into the lining device by means of a flexible cord after said lining device has been inserted into a branch line by way of eversion.
• the lining device can be everted into the branch line without affecting the relatively heavy UV-lamps.
• the reinforcing member may according to the invention be secured to said end of the outer film by means of fastening means which are adapted to be released from the outer film in connection with a pulling out thereof after the curing of the reinforcement.
• fastening means which are adapted to be released from the outer film in connection with a pulling out thereof after the curing of the reinforcement.
• Fig. 1 is a sectional view of a lining device according to the invention mounted in an apparatus with an insertion pipe, where the insertion pipe of said apparatus is placed in a main pipe in front of the outlet of a branch line into said main pipe,
• Figs. 2 and 3 are sectional views on a larger scale of framed portions of Fig. 1,
• Fig. 4 corresponds to Figs. 2 and 3, but where the lining device is being inserted into the branch line
• Fig. 5 corresponds to Fig. 4, but where the lining device is placed in the branch line with the sleeve-shaped reinforcing member pressed against the inner side of said branch line by means of compressed air, and where a train of UV-lamps are being pulled into said lining device,
• Fig. 6 corresponds to Fig. 5, but where the train of UV-lamps are switched on while being pulled out of the everted lining device
• Fig. 7 corresponds to Fig. 6, but where the expandable film is being pulled out of the cured reinforcing member
• Fig. 8 corresponds to Fig. 7, but where the expandable film has been completely removed from the mounted sleeve-shaped reinforcing member.
• the lining device shown in Figs. 1, 2 and 3 includes an outer hose-shaped, expandable film 1 and an inner sleeve-shaped, expandable reinforcing member 2.
• One first end 3 of the expandable film 1 is adapted to be mounted on the outer side of an inserting pipe 4, cf. the Figures.
• the inserting pipe 4 forms a front part of a mounting apparatus 5 of a conventionally known type.
• This mounting apparatus 5 is adapted to receive the lining device in the interior thereof in order to allow a mounting of said lining device by way of eversion and by means of compressed air, said apparatus being air-tightly sealed in a conventionally known manner and being connected to means (not shown) for feeding compressed air.
• the end of the sleeve-shaped, ex- pandable reinforcing member 2 adjacent the first end of the expandable film 1 is secured to said outer expandable film 1 by means of a plurality of plastic clips 6, 7.
• These clips can be of the same type as the one used for fastening price tags to clothes in clothes shops, i.e. H or I-shaped plastic means.
• a closing member 9 is provided at the opposite end of the expandable film 1, said closing member 9 closing the end in question in a conventionally known manner so that the connection is completely sealing.
• the closing member 9 includes a roller or pulley 10 adapted to co-operate with a cord 11.
• This cord 11 is connected to a train of UV-lamps designated the general reference numeral 12, and the cord 11 leaves the mounting apparatus 5 in a sealing man- ner so as to be handled from the outside.
• the cord 11 is connected to a cable 13 also sealingly leaving the mounting apparatus and communicating with a source of energy in a manner not shown in greater detail.
• the mounting apparatus 5 with the lining device mounted as shown in Fig. 1 is moved forwards inside a main pipeline 14 to the inlet of a branch line 15 by means of a remote-controlled robot including a camera in a conventionally known manner.
• the mounting apparatus is fixed and the mounting procedure is initiated by compressed air being fed into the interior of said mounting apparatus 5.
• the mounting procedure continues as illustrated in Figs. 4 and 5, viz. the lining device passes into said branch line and the inner side of said lining device is everted until the entire sleeve-shaped mounting member has been everted.
• the sleeve-shaped reinforcing member is pressed outwards so as to abut the inner side of the branch line 15 by a feeding of additional compressed air, cf. in particular Fig. 5.
• additional compressed air cf. in particular Fig. 5.
• the end of the sleeve-shaped reinforcing member 2 ul- timately positioned adjacent the main pipeline 14 is obliquely cut in accordance with the inclination of the branch line relative to the main pipeline 14.
• the lamps of the row 12 are switched on, cf. Fig. 6, and while said lamps are switched on, the row 12 of lamps is pulled backwards out of the branch line 15 again at a suitable speed by means of the cable 13.
• the sleeve- shaped expanded reinforcing member is subjected to a curing which implies that said reinforcing member remains secured to the inner wall of the branch line 15 in a conventionally known manner.
• Fig. 7 shows the row 12 of lamps in the completely retracted position inside the mounting apparatus 5 while the expandable film 1 is in the process of being pulled off the sleeve-shaped reinforcing member 2 by means of the cord 11.
• the expandable film 1 has been completely removed from the sleeve- shaped reinforcing member 2.
• the mounting apparatus can be removed from the main pipeline, and possible projecting portions of the sleeve-shaped mounting member 2 can be cut off by means of remote-controlled robots.
• the described lining device is suited for mounting in branch lines which extend both perpendicular to the main pipeline and at a relatively acute angle from said main pipeline because the inserting pipe 4 can be placed at such a distance from the inlet to the branch line 15 that the sleeve-shaped reinforcing member 2 is always arranged at the transition between the branch line 15 and the main pipeline 14.
• the plastic clips 6 and 7 used are of such a type that they can easily be torn loose of the expand- able film 1 during the removal of said film 1 from the mounted reinforcing member 2. However, they must be arranged in such a manner that they ensure that the sleeve- shaped reinforcing member 2 follows the everting process.
• a releasable adhesive layer can optionally be placed between the outer expandable film 1 and the sleeve-shaped expandable reinforcing member 2, said adhesive layer facilitating the control of the everting procedure and in addition also the handling of the lining device during the mounting procedure inside the mounting apparatus.
• a suitable adhesive layer can be placed on the inner side of the sleeve- shaped reinforcing member 2, said adhesive layer allowing a particularly good re- taining of the sleeve-shaped member 2 on the inner side of the branch line 15 after the everting procedure.

Applications Claiming Priority (2)

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• 2004
  • 2004-05-26 WO PCT/DK2004/000366 patent/WO2004104469A1/en not_active Application Discontinuation
  • 2004-05-26 EP EP04734813A patent/EP1631766A1/de not_active Withdrawn

Non-Patent Citations (1)

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