EP1053065B1 - Verfahren zur herstellung von rohren zum verbinden in einem doppelwandigen rohrsystem und vorrichtung zur herstellung - Google Patents

Verfahren zur herstellung von rohren zum verbinden in einem doppelwandigen rohrsystem und vorrichtung zur herstellung Download PDF

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Publication number
EP1053065B1
EP1053065B1 EP99958278A EP99958278A EP1053065B1 EP 1053065 B1 EP1053065 B1 EP 1053065B1 EP 99958278 A EP99958278 A EP 99958278A EP 99958278 A EP99958278 A EP 99958278A EP 1053065 B1 EP1053065 B1 EP 1053065B1
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EP
European Patent Office
Prior art keywords
bars
outer tube
pipe
machine according
ring
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Expired - Lifetime
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EP99958278A
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English (en)
French (fr)
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EP1053065A1 (de
Inventor
Philippe Marchal
Mathieu Rivier
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ITP
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ITP
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49879—Spaced wall tube or receptacle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49909—Securing cup or tube between axially extending concentric annuli
    • Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit

Definitions

  • the invention is essentially related to the manufacture of pipes called double-walled or double envelope, that is to say pipes that are made of current part by two coaxial tubes, namely a tube internal and an outer tube.
  • double-walled or double envelope that is to say pipes that are made of current part by two coaxial tubes, namely a tube internal and an outer tube.
  • the about such a double wall is to spare a space ring between the two tubes.
  • the invention aims more particularly at facilitate the realization of the ends of such pipes when this annular space between the two tubes must be closed at the ends of the pipe, for a reason or other. This is particularly so when the annular space intermediate of the double wall serves as an envelope thermal insulation for a circulating fluid the inside of the inner tube.
  • the invention lends itself particularly well to the conditions of manufacture and implementation of such pipes when they are intended to constitute the successive sections of a continuous pipeline.
  • pipelines of petroleum products, commonly referred to as pipelines.
  • This case represents an example characteristic of long pipelines, which in more are often placed in open sea.
  • we are leads to making the pipes in the factory, producing them in series from individual tubes, before assemble by connecting them end to end to form the pipeline see for example US-A-1,818,435.
  • the present invention makes it possible to simplify dramatically the manufacturing operations by avoiding recourse to such an intermediate part, and without lose the functions it provides when we consider the pipe as a whole, and without harming the qualities that this one must globally present. It also allows reduce manufacturing costs and increase the pace of production.
  • this deformation can in accordance with the invention, so that that we maintain a precise and regular set of welding for the subsequent sealing of the annular space subsisting in the running part of the pipe as thermal insulation envelope.
  • the invention is concretized according to different forms, which express themselves in particular in terms of a process of manufacture of double wall pipes by deformation of a end part of an outer tube around a part end of an inner tube to bring them closer together. the other in closing of the annular space that they spare between them in the current part of the pipe, or who express themselves in terms of device considering a machine with means specific to the implementation of this process. It also concerns an installation of manufacture of double wall pipes in series integrating a such machine.
  • the subject of the invention is therefore a production method of pipes to be connected in a double wall pipe, characterized in that after bringing an inner tube and an outer tube in a coaxial relative arrangement between them an annular space up to a zone of connection at the end of the pipe where the outer tube present back of the inner tube longitudinally, one deforms the wall of an end part of the outer tube into restriction of its diameter to bring its end joined with the inner tube closing said space annular, acting concentrically by pressure progressive on its wall via a series of bars which are distributed annularly around said connection area and whose switchover is caused by radial direction from a fixed ring relative to to the outer tube on which they are articulated.
  • the tilting of said bars is caused by admitting a progressive fluidic pressure in an annular chamber with a flexible wall and volume variable surrounding all of said bars.
  • Another subject of the invention is a machine for implementation of the process referred to above, characterized in that that it comprises on the one hand a mobile rigid structure to be engaged around an end connection area of a pipe where an outer tube ends in withdrawal of a inner tube, said tubes providing a space between them annular, on the other hand active organs comprising a series of bars distributed annularly and mounted articulated at a rear end on a fixed crown of that structure which is common to them, as well as means of simultaneous tilting of the various bars in radial direction to tilt them closer to their opposite front ends towards the longitudinal axis of the annular distribution.
  • said means for tilting said bars have an inflatable annular chamber with a wall flexible and variable volume, surrounding all of said bars, and means for admitting a fluid pressure progressive in said chamber.
  • the rigid structure may comprise means for confinement of said chamber in the inflated state, comprising especially an outer envelope, and preferably also an inner flank to this envelope the opposite of said crown on which said bars are articulated.
  • said rigid structure is equipped with means of lifting and transport to engage him around the connection area through the free end of the pipe, or to release it at the end of the operation, when said bars are brought back into the inactive position away from the wall of the outer tube.
  • said structure comprises means for guiding its movements along the pipe cooperating with the outer tube in the main part of the pipe to ensure its longitudinal and radial centering by relative to the axis of the pipe, said means comprising preferably at the back of a cantilever beam extending longitudinally away from the pipe, symmetrical rollers tending further to maintain said beam in orientation along a top generatrix said pipe.
  • each of said bars is active pressure on the end part of the outer tube through a shoe that she wears, which presents advantageously a portion inclined longitudinal profile relative to said bar.
  • said shoe has a profile cross-section with a radius of curvature of preferably of the same order of magnitude as that of the tube internal.
  • said rigid structure has radial guide rods of different bars, said rods being fixed on a central ring, and there is provided on each of said rods a spring of recall of the corresponding bar to its inactive position away from the wall of the outer tube.
  • each of said bars a slat oriented perpendicular to it and sliding on a finger attached to the rigid structure during tilting operations of the bars.
  • annular wedge Provision of a weld game between the end of the external tube and the wall of the inner tube at the end of the operation of the machine is provided.
  • a layer is provided intermediate of relatively constant thickness around said bars, in particular for protecting the wall an inflatable annular chamber.
  • the invention also relates to an installation of series production of pipes to be connected end to end in a double wall pipe, characterized in that comprises a machine as described above for the chain treatment of the ends of successive pipes.
  • Each pipe 1 is essentially constituted, as already indicated, from an outer tube 20 and an inner tube 10. It is conventional to seek to report on the latter various constraints such as those which are generated during the operations manufacturing required to close the space ring 31 between the two tubes and welding end-to-end successive pipes constituting a continuous pipeline.
  • the tubes are in steel, that the rigid connections between different parts are made by welding, that the annular space 31 is advantageously occupied by an insulating material used in the form of plates that are wrapped around the tube internal, that the thermal insulation capacity can be improved by providing reduced pressure in this annular space, once two internal tubes welded end to end the continuity of a pipeline between pipes successively at the level of the external tubes and that of the insulating annular space can, at best, be provided in involving an intermediate piece forming a cylindrical coupling sleeve between the two tubes external pipes.
  • the inner tube 10 is longer than the outer tube 20, so that at each end of the running part, so left on the figure, the inner tube protrudes from the outer tube.
  • the respective end portions of the two tubes define there a connection zone 2 with the opposite end of a another identical pipe.
  • the end of the tube 3 external 20 is longitudinally indented with respect to the free end of that 4 of the inner tube 10.
  • connection zone 2 The machine used to complete the realization of the connection zone 2 is shown schematically in its whole on this same figure 1.
  • This machine is mobile for use in processing chain of different pipe ends.
  • a system of lifting 32 to suspend it to a rudder of transport which system is illustrated by a cable 33 clinging to ears with rings 34 welded to the rigid structure of the machine.
  • the structure supporting the organs active in deformation of the outer tube is prolonged by a beam 35 which, in the functional position, is placed along the upper generatrix of the current part of the pipe. At its end, to the right of the figure, it rests on the outer tube 20, on which it is guided in longitudinal displacement of the machine by rollers bearing 36.
  • assets On the opposite side, on the left in FIG. called assets, on the grounds that they serve the purpose of realization of the connection zone 2, respect a geometry with symmetry of revolution.
  • the rigid structure in which they are mounted has a cylindrical shell 41 inside which are a series of tilting bars 42. These bars are illustrated by admitting that they are all identical to each other. They extend longitudinally and are distributed in annular ring around the pipe.
  • the bars 42 are mounted pivoting on an annular ring 43 integral with the beam 35 and therefore also the ferrule 41.
  • the movements of their forward mobile end are guided by rods 44, the latter being rigidly mounted between the ferrule 41 and a central ring 45.
  • a chamber inflatable annular ring 46 When this is brought to the state inflated, by admission of water or other fluid through a connection 47, it fills a whole space between the ferrule 41 and the set of bars 42.
  • the bars 42 are supplemented by pressure pads 48, and that at their movable end, the bars 42 are individually submitted, against pressure coming from the chamber 46, to the return action of a spring helical 49 disposed around the corresponding rod 44 and taking support on the one hand on the inner face of the bar and secondly on the central ring 45.
  • the machine is automatically brought into a stable position and precise when it is engaged longitudinally on the pipe 1, from the free end of the latter, until the pads 48 are placed around the parts end of the two tubes intended to constitute what is called the connection area between two pipes like.
  • the different bars 42 are switched to a so-called inactive position under the sole effect of the return springs 49, and in this position (which is that of Figure 6 in particular), their skates 48 are placed in the immediate vicinity of the end of the outer tube 20, but without pressing above.
  • this chamber When then we admit a fluidic pressure in the room 46, usually by introducing water under pressure through the connection 47, this chamber inflates and fact that the expansion of its variable volume is limited by the ferrule 41 which envelops it externally, the pressure there gradually increases. It increases sufficiently for exercise against the 49 springs and the resistance of the outer tube 20, a thrust force on the bars 42 which tends to tilt them all simultaneously radial direction.
  • the pads 48 act in pressure concentric on the wall of the outer tube 20, causing thus the deformation of this wall in approximation of that of the inner tube.
  • the pressure exerted through the chamber 46 is at all times uniformly distributed over the different bars 42, not only in the radial direction annularly around the pipe, but also in the direction longitudinal along the outer face of the bars.
  • the inclined profile given to the portions 63 of the skates 48 has the consequence that the shrinkage of the tube externally varies from the rear, where it is zero to the junction of the current part of the pipe, up to its free end in the front, where it becomes such that at the end of the operation, the wall of the outer tube arrives joined with that of the inner tube provided with its welding wedge, this last remaining insensitive to deformations. More exactly, the tube wall comes into abutment all over the perimeter of an intermediate hold which will be described more far.
  • the number of bars 42, with their individual organs associated, is variable according to the conditions application. It is particularly in direct relation with the distance that their moving end must travel causes them to tilt, so with the original deviation between the spokes of the two tubes. Moreover, it is calculated so that the clearance between adjacent bars, at the level of their skates coming in pressure on the tube external, be small enough not to induce pinching of the outer tube.
  • crown 43 at about which we did not reveal that she is fixed, welded on the beam 35, as well as the others fixed elements that are the envelope shell 41, welded to the front face 51 of the crown 43, and the stem 44 suitable for the bar 42 shown.
  • this stem 44 is part of integral of the rigid structure. She is committed to through the ferrule 41 to the stop of his head away from the longitudinal axis of the machine. At its opposite end, it is threaded and screwed into the slice outer of the central ring 45. Rigidity of the assembly of the latter is simply the result of the combined effect of different rods 44.
  • each bar 42 forms a fork 55 through which she lets herself go through the corresponding rod 44.
  • the spring 49 which tends to tip the bar 42 to its inactive position by tilting it on the axis longitudinally away from the pipe, is supported on the one hand by the outer edge 56 of the ring 45, on the other hand on the radially inner face 57 of the bar 42, by via a washer 58.
  • a lamella 64 welded to it, which is oriented perpendicular to the bar to the outside. His role main purpose is to facilitate the mounting of the bars on the 43.
  • the blade 64 is associated with a finger 65 which is welded longitudinally on the face external 66 of the crown 43 (or otherwise secured of the rigid structure) and that passes through the end of the slide 64 itself.
  • each slat prevents and that the bar to which it belongs is released from the 43. Subsequently, the slat 64 slides freely on the finger 65 during tilting operations of the bar 42 between two extreme positions, which correspond one to the stop of the lamella 64 on the back side of the 43, the other to its abutment on a nut 67 present in fingertip 65.
  • the bar 42 is provided with two cleats 60 and 61 which frame the crown 43, in abutment on its faces back and front respectively (reference 51 for the front before in Figure 4). These cleats have for finality to prevent the bar from slipping longitudinally with respect to the crown 43. They therefore participate with the slide 64 associated with the same bar, to maintain this tilting bar around a point fixed hinge.
  • the bars 42 can be mounted more simply in the crown 43 by means of screws through their thickness with game. This game allows you to find the same freedom of inclination on the axis longitudinal.
  • the inner slice of the ring 45 is slightly rounded profile, such as sought to show it in Figures 6 and 7.
  • each pad 48 has a transverse profile curved concave 59.
  • each bar is trapezoidal, with side faces that are inclined correspondence with rays of the machine towards the axis of pipe, the inner face receiving the pad 48, the latter being, he, essentially rectangular section and lower width.
  • the dimensions are calculated to limit at best the gap between adjacent bars as they move from their inactive position to their final active position as and as the deformation of the terminal part of the outer tube. These dimensional conditions apply essentially to the bars considered at their level skates, and mainly according to the inner face of these last.
  • the radius of curvature of the active surface 59 ( Figure 5) in pressure on the outer tube is advantageously of the same order of magnitude as that of the tube internal in its terminal part 2, so lower locally to that of the outer tube. This provision contributes with the dimensional conditions above to preserve a regular surface along the perimeter of the tube, in the to avoid the appearance of alternating dishes with areas of curvature more pronounced.
  • the whole is constructed in such a way that in their inactive position, the bars 42 are inclined on the axis of the pipe 1, to the distance from any contact between the pads and the outer tube 20 not yet deformed, and that in their active position final, they are simply brought back together with the axis of the pipe.
  • the volume that the annular chamber 46 fills in the inflated state is limited by a ring flank 62, disposed opposite the support ring 43.
  • This flank is welded secured to the ferrule 41, perpendicular to on its internal side, this one playing the role of a confinement envelope of the inflated chamber, in combination with the crown 43 and the flank 62.
  • This wedge is of constant thickness, practically insensitive to the pressure of the active organs of the machine of the invention, since it closely follows the outline of the inner tube. That's why we did not take it into account previously, considering that everything is happening as if it was an integral part of the inner tube 10 all at during deformation operations of the outer tube 20. It is easily removed when the bars 42 (plus exactly their skates 48) stop their pressure, because elastic return of the outer tube.
  • the game between the tube and the outer tube is thus constant (at the tolerance near the thickness of the shim), which facilitates subsequent welding operations in closure of the annular space between the two tubes and improves the quality of the weld obtained.
  • the temporary hold 69 shown on the Figure 6 advantageously presents lines of weakness 71, possibly cutting lines, extending longitudinally, at least all around the part of his length that is inserted between the tubes in thus sparing the welding game.
  • the objective is to improve the faculty, which it already offers because of its finesse, to lend itself to the inevitable irregularities of perimeter of the inner tube 10, better than it would by the other part of its length.
  • the bars 48 are significantly longer than their respective pads 42 acting in pressure on the part terminal 3 of the outer tube of the pipe to be treated.
  • Pressure applied to the tube by the profile portion 63 inclined longitudinal is all the stronger compared with at the fluidic pressure prevailing in the inflatable chamber at a determined moment of the progressive pressurization.
  • the machine is easy to move to treat in chain the ends of successive pipes intended to be connected end to end to constitute a continuous ducting, sealing the space ring between inner tube and outer tube, including in the case where an insulating material is placed in this space meanwhile.
  • Welding operations are facilitated by the fact that the play of welding previously by means of the shim described is constant.
  • the operations of welding do not fear the risk of oil leaks and cleaning operations can be performed with a torch.
  • the invention is in no way limited by the precise indications that have been provided about special industrial application conditions industrial application. It extends no only to all variants of implementation where the encrypted dimensional data would be different, but also to all variants using means deviating from those described while completing the same functions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Earth Drilling (AREA)

Claims (15)

  1. Verfahren zur Herstellung von Rohren zum Anschließen in einer doppelwandigen Kanalisation, dadurch gekennzeichnet, dass, nachdem ein inneres Rohr (10) und ein äußeres Rohr (20) in eine zueinander koaxiale Anordnung gebracht wurden, die bis zu einem Anschlussbereich (2) am Ende des Rohres, wo sich das äußere Rohr in einer in Längsrichtung zum inneren Rohr zurückgezogenen Position befindet, einen ringförmigen Raum (31) zwischen sich anordnen, die Wand eines Endabschnittes (3) des äußeren Rohres (20) unter Einschränkung seines Durchmessers verformt wird, bis sein an das innere Rohr (10) stoßende Ende den genannten ringförmigen Raum (31) verschließt, indem durch zunehmenden Druck mit Hilfe einer Reihe von Stäben (42) konzentrisch auf seine Wand eingewirkt wird, die sich ringförmig um diesen Anschlussbereich (2) verteilen und für die ein Kippen in radialer Richtung von einem in Bezug auf das äußere Rohr festen Kranz (43) aus bewirkt wird, auf dem sie gelenkig angebracht sind.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Kippen der genannten Stäbe (42) dadurch hervorgerufen wird, dass ein zunehmender Druck eines Fluids in einer ringförmigen Kammer (46) mit flexibler Wand (52) und variablem Volumen, die die Gesamtheit der genannten Stäbe (42) umschließt, zugelassen wird.
  3. Maschine zur Durchführung des Verfahrens nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie einerseits eine bewegliche, starre Struktur umfasst, um einen Anschlussbereich herum am Ende eines Rohres (1) angesetzt zu werden, wo ein äußeres Rohr (20) zu einem inneren Rohr (10) zurückgezogen endet, wobei die genannten Rohre (10, 20) zwischen sich einen ringförmigen Raum (31) anordnen, andererseits aktive Bauteile, die eine Reihe von Stäben (42), die ringförmig verteilt sind und an einem hinteren Ende gelenkig an einem zu der genannten ihnen gemeinsamen Struktur festen Krone (43) angebracht sind, sowie Mittel zum gleichzeitigen Kippen der verschiedenen Stäbe (42) in einer radialen Richtung umfasst, um sie zu neigen, indem ihre vorderen Enden, die sich zur Längsachse der ringförmigen Verteilung gegenüber stehen, sich einander näher kommen.
  4. Maschine nach Anspruch 3, dadurch gekennzeichnet, dass die genannten Mittel zum Kippen der genannten Stäbe (42) eine ringförmige, aufblasbare Kammer (46) mit flexibler Wand (52) und variablem Volumen, die die Gesamtheit der genannten Stäbe (42) umgibt, und Mittel zum Erlauben eines zunehmenden Drucks eines Fluids in der Kammer umfassen.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass die genannte starre Struktur Mittel zum Einschluss der genannten Kammer (46) im aufgeblasenen Zustand umfasst, die insbesondere eine äußere Hülle (41) und vorzugsweise auch einen inneren Flansch (62) gegenüber des Kranzes (43), an dem die genannten Stäbe (42) angelenkt sind, an dieser Hülle umfassen.
  6. Maschine nach irgendeinem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die genannte starre Struktur mit Mitteln (32) zum Anheben und zum Transport ausgerüstet ist, um sie um den Anschlussbereich (2) vom freien Ende des Rohres (1) her anzusetzen oder um sie am Ende der Tätigkeit, wenn die genannte Stäbe in die von der Wand des äußeren Rohres (20) beabstandete Ruhestellung gebracht sind, davon zu lösen.
  7. Maschine nach irgendeinem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass die genannte Struktur Mittel (35, 36) zur Führung ihrer Verschiebungen entlang des Rohres (1) umfasst, die mit dem äußeren Rohr (20) im gängigen Abschnitt des Rohres zusammenwirken, um ihre longitudinale und radiale Zentrierung in Bezug auf die Achse des Rohres zu gewährleisten, wobei die genannten Mittel vorzugsweise am hinteren Teil eines überhängenden Trägers (35), der sich longitudinal vom Rohr beabstandet erstreckt, symmetrische Rollen (37, 38) aufweist, die außerdem die Tendenz haben, den genannten Träger (35) in der Ausrichtung entlang einer oberen Mantellinie des Rohres zu halten.
  8. Maschine nach irgendeinem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass jeder der genannten Stäbe (42) wirksam Druck auf den Endabschnitt (3) des äußeren Rohres (20) mit Hilfe eines Schuhs (48), den er trägt, ausübt, welcher Vorteilhafterweise einen Abschnitt (63) mit geneigtem Längsprofil in Bezug auf den genannten Stab (42) aufweist.
  9. Maschine nach Anspruch 8, dadurch gekennzeichnet, dass, wenigstens was den genannten geneigten Abschnitt (63) betrifft, der genannte Schuh (48) eine konkaves Querprofil aufweist, dessen Krümmungsradius vorzugsweise in der gleichen Größenordnung liegt wie jener des inneren Rohres.
  10. Maschine nach irgendeinem der Ansprüche 3 bis 9, dadurch gekennzeichnet, dass die genannte starre Struktur Stangen (44) zur radialen Führung der verschiedenen Stäbe (42) umfasst, wobei die genannten Stangen auf einem zentralen Ring (45) befestigt sind, und dass an jeder der genannten Stangen (44) eine Feder (49) zum Rückstellen des entsprechenden Stabes (42) in seine von der Wand des äußeren Rohres (20) beabstandeten Ruheposition vorgesehen ist.
  11. Maschine nach irgendeinem der Ansprüche 3 bis 10, dadurch gekennzeichnet, dass jeder der Stäbe (42) durch Nasen (60, 61) an dem genannten Kranz (43) festgehalten werden, welche sich an den radialen Flächen dieses Letzteren abstützen.
  12. Maschine nach irgendeinem der Ansprüche 3 bis 11, dadurch gekennzeichnet, dass an jedem der genannten Stäbe (42) eine Lamelle (64) vorgesehen ist, die senkrecht zu ihm orientiert und an einem, bei den Einwirkungen des Kippens der Stäbe, fest mit der starren Struktur verbundenen Finger (65) verschiebbar ist.
  13. Maschine nach irgendeinem der Ansprüche 3 bis 12, dadurch gekennzeichnet, dass ein ringförmiger, vorläufiger Keil (69) vorgesehen ist, der einen Spielraum für eine Schweißnaht zwischen dem Ende des äußeren Rohres (20) und der Wand des inneren Rohres (10) am Ende der Tätigkeit der Maschine anordnet.
  14. Maschine nach irgendeinem der Ansprüche 3 bis 13, dadurch gekennzeichnet, dass eine Zwischenschicht (68) mit relativ geringer, konstanter Dicke um die genannten Stäbe (42) herum vorgesehen ist, insbesondere zum Schutz der Wand einer ringförmigen, aufblasbaren Kammer (46) nach Anspruch 4.
  15. Einrichtung zur Serienherstellung von Rohren zum stumpfen Anschließen in einer doppelwandigen Kanalisation, dadurch gekennzeichnet, dass sie eine Maschine nach irgendeinem der Ansprüche 3 bis 14 umfasst für die Fließbandbearbeitung der aufeinander folgenden Enden der Rohre.
EP99958278A 1998-12-08 1999-12-08 Verfahren zur herstellung von rohren zum verbinden in einem doppelwandigen rohrsystem und vorrichtung zur herstellung Expired - Lifetime EP1053065B1 (de)

Applications Claiming Priority (3)

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FR9815491A FR2786713B1 (fr) 1998-12-08 1998-12-08 Procede de realisation de tuyaux a raccorder dans une canalisation a double paroi et machine pour sa mise en oeuvre
FR9815491 1998-12-08
PCT/FR1999/003064 WO2000033990A1 (fr) 1998-12-08 1999-12-08 Procede de realisation de tuyaux a raccorder dans une canalisation a double paroi et machine pour sa mise en oeuvre

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EP1053065A1 EP1053065A1 (de) 2000-11-22
EP1053065B1 true EP1053065B1 (de) 2003-07-09

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EP99958278A Expired - Lifetime EP1053065B1 (de) 1998-12-08 1999-12-08 Verfahren zur herstellung von rohren zum verbinden in einem doppelwandigen rohrsystem und vorrichtung zur herstellung

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US (1) US6446321B1 (de)
EP (1) EP1053065B1 (de)
BR (1) BR9907707A (de)
FR (1) FR2786713B1 (de)
NO (1) NO318202B1 (de)
WO (1) WO2000033990A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO335033B1 (no) 2000-05-10 2014-08-25 Itp Rørledning med dobbel rørvegg og stor bøyestivhet
FR2817319B1 (fr) 2000-11-29 2008-12-19 Itp Pipeline double enveloppe a resistance amelioree au flambage
FR2812370B1 (fr) 2000-07-25 2003-08-08 Itp Dispositif de flottaison annele d'un pipeline a grande profondeur
RU2235616C1 (ru) * 2003-03-24 2004-09-10 Открытое акционерное общество "Российский научно-исследовательский институт трубной промышленности" Способ изготовления двухстенных сварных труб
US20050212285A1 (en) * 2004-03-29 2005-09-29 Ope International, L.P. Dual-walled piping system and methods
FR2888327B1 (fr) 2005-07-05 2008-07-04 Saipem S A Sa Procede et dispositif de controle de soudure de raccordement de conduite par sonde a ultrasons
FR2897919B1 (fr) * 2006-02-24 2011-04-01 Saipem Sa Element de conduites coaxiales dont la conduite interne est sous contrainte de traction et procede de fabrication
WO2008053251A2 (en) 2006-11-02 2008-05-08 Acergy France Sa Insulated pipelines and methods of construction and installation thereof
FR2937706B1 (fr) 2008-10-29 2013-02-22 Saipem Sa Ensemble de conduites coaxiales comprenant un manchon d'isolation thermique
FR2948164B1 (fr) * 2009-07-17 2011-06-24 Technip France Methode de fabrication de conduites tubulaires rigides a double enveloppe et installation dediee a la fabrication de ces conduites
US20120155964A1 (en) * 2010-06-25 2012-06-21 George Carter Universal Subsea Oil Containment System and Method
GB2498740B (en) 2012-01-25 2014-09-10 Subsea 7 Ltd Connections for subsea pipe-in-pipe structures
CN108453186B (zh) * 2018-04-03 2024-04-09 扬州市欧亿照明电气有限公司 一种用于路灯杆焊接的胀管装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818435A (en) * 1929-02-20 1931-08-11 Frank H Smith Apparatus for joining pipes
US2311662A (en) * 1937-02-23 1943-02-23 Weatherhead Co Forming method
US2999405A (en) * 1957-12-24 1961-09-12 Smith Corp A O Apparatus for radially compressing articles
GB1342578A (en) * 1970-11-19 1974-01-03 Btr Industries Ltd Swaging apparatus
DE2153054A1 (de) * 1971-10-25 1973-05-10 Kramatorskij Ni I Pt I Mash Keilspannvorrichtung
US3977065A (en) * 1973-03-01 1976-08-31 Wyle Laboratories Crimping machine
GB1569126A (en) * 1976-02-24 1980-06-11 Andrew Hydraulics Int Device for crimping tubular elements
US4019334A (en) * 1976-03-17 1977-04-26 Exxon Production Research Company Method and apparatus for making subsea pipe connections
US4034592A (en) * 1976-03-31 1977-07-12 The Weatherhead Company Crimping machine with automatic hinge open pushers
FI791227A7 (fi) * 1979-04-17 1981-01-01 Jorma Lillbacka Puristinlaite.
US4244091A (en) * 1979-09-21 1981-01-13 The Gates Rubber Company Hose crimping apparatus
US4360290A (en) * 1980-12-17 1982-11-23 Shell Oil Company Internal pipeline plug for deep subsea pipe-to-pipe pull-in connection operations
US4781055A (en) * 1985-11-18 1988-11-01 Stratoflex, Inc. Crimping machine
US4832530A (en) * 1988-02-08 1989-05-23 Andersen Scott F Apparatus and method for joining pipe sections underwater
EP0593838A1 (de) * 1992-10-23 1994-04-27 FORANTE ORAZIO & C. S.n.c. di Orazio Forante Vorrichtung zum Pressen von Rohren, insbesondere die Enden von ölhydraulischen Kautschukrohren zur Gestaltung von Anschlussteilen
FR2700980B1 (fr) * 1993-02-01 1995-04-21 Caillau Ets Bague à rétreindre et son procédé de fabrication.
FR2758872B1 (fr) * 1997-01-30 1999-03-19 Itp Enveloppe d'isolation thermique, notamment pour la construction de canalisations sous-marines vehiculant des produits petroliers

Also Published As

Publication number Publication date
EP1053065A1 (de) 2000-11-22
US6446321B1 (en) 2002-09-10
NO20003982D0 (no) 2000-08-07
BR9907707A (pt) 2000-11-14
WO2000033990A1 (fr) 2000-06-15
FR2786713B1 (fr) 2001-02-16
NO20003982L (no) 2000-08-07
FR2786713A1 (fr) 2000-06-09
NO318202B1 (no) 2005-02-14

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