WO1987001428A1 - Procede de raccordement de longueurs de tuyaux, raccord ainsi produit, et longueurs de tuyaux fabriquees par ce procede - Google Patents

Procede de raccordement de longueurs de tuyaux, raccord ainsi produit, et longueurs de tuyaux fabriquees par ce procede Download PDF

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Publication number
WO1987001428A1
WO1987001428A1 PCT/NL1986/000029 NL8600029W WO8701428A1 WO 1987001428 A1 WO1987001428 A1 WO 1987001428A1 NL 8600029 W NL8600029 W NL 8600029W WO 8701428 A1 WO8701428 A1 WO 8701428A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
pipe length
lengths
wall
length
Prior art date
Application number
PCT/NL1986/000029
Other languages
English (en)
Inventor
Franciscus Cornelis Terhoeve
Original Assignee
Allseas Engineering B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL8502610A external-priority patent/NL8502610A/nl
Application filed by Allseas Engineering B.V. filed Critical Allseas Engineering B.V.
Priority to GB08710512A priority Critical patent/GB2189562B/en
Publication of WO1987001428A1 publication Critical patent/WO1987001428A1/fr

Links

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
    • F16L55/1608—Devices for covering leaks in pipes or hoses, e.g. hose-menders by replacement of the damaged part of the pipe
    • 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
    • B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
    • B21D39/066—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in using explosives
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars

Definitions

  • the invention relates to a method in accordance with the preamble of claim 1.
  • Connecting pipe lengths with flanges requires the presence of these flanges at the pipe length ends and lying precisely within the scope of the objective of the current invention is the attachment, for example, of a pipe length provided with a flange to a flangeless pipe length, following which the previously flangeless pipe length with the flange fitted onto it can be coupled to a flange of an existing pipeline.
  • the invention has for its purpose to provide a method of the type referred to in the preamble which can be performed with tooling that is small in bulk and weight in places difficult of access and of which the manufactured join, if required, permits a considerable axial tensile force between the pipe lengths and which does not lead to fatigue cracks in one or both of the connected pipe lengths and/or to damaging of the coatings.
  • the invention also relates to and provides a join ; and pipe lengths manufactured as in the method according to the invention which are constructed for application in the method according to the invention.
  • the current invention does not exclude the plastic deformation of a first (thick) wall part by an explosion in accordance with the essential insight of the current invention, nor does it exclude the melting of a second (thin) wall part by explosion of a charge of the same order of magnitude for welding onto another pipe length.
  • the charge used for the welding with respect to the small wall thickness is of another order of magnitude than the charge * used for the plastic deformation with respect to the large wall thickness.
  • fig. la, lb and lc and 2a, 2b and 2c show three successive situations in the application of the two different methods according to the invention
  • fig. 3a, 4 and 6 each show a variant of fig. la
  • fig. 3b is a section corresponding with fig. 3a in the situation after performing the method according to the invention
  • fig. 5 shows on a larger scale a variant of a longitudinal section through a fraction of a join according to the invention.
  • the outer diameter of pipe length 1 is the same as the inner diameter of pipe length 2 which amounts to e 2 > this value e 2 being essentially greater than the diameter e j _, since the wall 12 of pipe length 2 is elastically deformed through the pressure applied to it by the wall 11 of pipe length 1. Under the influence of the explosion the- wall 11 is however deformed (expanded) not only over a diameter increase of e 2 -e 1 but also over the diameter increase e j -d ⁇ , this deformation being too great for an elastic deformation so that due to excessive deforming the state of plastic deformation of the wall 11 in fig. lb results.
  • the coating layer 51 of pipe length 1 has on its inner side a thin walled, axially extending bridging ring of the same coating material.
  • this bridging ring 5 because it is thin walled, is
  • a cylindrical cartridge 24 with explosive material built up of for example three segments is arranged inside a robust housing 25 around a pipe length 21 which is placed around a pipe leng-th 22 with a clearance g i ⁇ f i. '
  • the pipe lengths 21 and 22 each have an interior coating layer 51.
  • the end of the pipe length 22 is moreover provided inside and outside with a vapour deposited layer which forms a bridging ring 23.
  • the practical embodiment variant of fig. 3a shows a first pipe length 41, which is for example the end of a long underwater pipe, and which has to be provided with a flange 10.
  • a pre-processed pipe length 42 according to the invention is provided with the required flange 10 for coupling to for example another pipe (not drawn).
  • This pipe length 42 is placed onto the pipe length 41 whereby interior ribs 45 having little clearance grip round the outer diameter of pipe length 41.
  • Accommodated in a groove 46 is an elastic sealing ring 47 and between the head end 52 of the pipe length 41 and a bulge 48 of pipe length 41 is accommodated a radial bridging ring 54 of easily deformable metal, for example copper.
  • Both pipe lengths 41 and 42 have an anti-corrosive layer 51, for example copper.
  • the pipe lengths 41 and 42 are each provided with an anti-corrosive layer 51 which is vapour deposited for example or applied in another way. It is interesting to note here that the bridging ring 54, because of the plastic deformation of pipe length 41, which as a result is also extended axially, is gripped rigidly and close fitting.
  • the cartridge 4 with explosive material can consist of a cord 4 of explosive material wound round a core 13 of plastic, around which cord is arranged a supporting bush 15 of plastic.
  • a detonator 16 is located at the left-hand end as shown In fig.
  • a wall thickness is preferably chosen for the pipe length 42 which is markedly greater, for example 50%, than that of pipe length 41, so that this extra wall thi-ckness serves as extra mass and also as reinforcement of the pipe length 42.
  • Shown in fig. 5 is a fraction of a pipe length 61 that is. plastically deformed according to the Invention, whereby the material of the wall 71 is forced into the spaces 50 between the ribs 45.
  • the ribs 45 and/or the space surfaces 74 have annular grooves 75 which improve the sealing and gripping between the pipe lengths 61 and 62.
  • an elastic sealing ring 76 is further present between pipe lengths 61 and 62.
  • Bridging ring 77 is a protruding piece of a coating 83 which is welded to coating 84 of pipe length 62. In fig. 5 the material of bridging ring 77 has melted together with the adjoining coating material 84 of pipe length 62.
  • Fig. 6 shows a pipe length 82 in the form of a sleeve, which connects together two pipe lengths 81 after application of the method according to the invention with use of a radial bridging ring 54.
  • the method according to the invention can be performed underwater.
  • the method according to the invention can be particularly applied underwater in a space filled with air and bounded by a habitat.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Des tuyaux revêtus intérieurement sont joints par déformation élastique et plastique des extrémités (1, 2) des tuyaux suite à la détonation d'une charge explosive (4). Lors de l'explosion, les revêtements des deux extrémités de tuyaux sont joints par un anneau intercalaire.
PCT/NL1986/000029 1985-09-04 1986-09-04 Procede de raccordement de longueurs de tuyaux, raccord ainsi produit, et longueurs de tuyaux fabriquees par ce procede WO1987001428A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08710512A GB2189562B (en) 1985-09-04 1986-09-04 Method for connecting together lengths of pipe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL8502420 1985-09-04
NL8502420 1985-09-04
NL8502610 1985-09-24
NL8502610A NL8502610A (nl) 1985-09-24 1985-09-24 Werkwijze voor het onderling verbinden van buisstukken alsmede bij die werkwijze vervaardigde verbinding en buisstukken daarvoor.

Publications (1)

Publication Number Publication Date
WO1987001428A1 true WO1987001428A1 (fr) 1987-03-12

Family

ID=26646068

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1986/000029 WO1987001428A1 (fr) 1985-09-04 1986-09-04 Procede de raccordement de longueurs de tuyaux, raccord ainsi produit, et longueurs de tuyaux fabriquees par ce procede

Country Status (2)

Country Link
GB (1) GB2189562B (fr)
WO (1) WO1987001428A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002494A1 (de) * 1990-01-29 1991-08-08 Airbus Gmbh Rohrverschraubung
US5992897A (en) * 1995-02-23 1999-11-30 Bg Plc Joining lined pipe items
WO2006037722A1 (fr) * 2004-10-05 2006-04-13 Endress+Hauser Flowtec Ag Systeme composite, procede de fabrication associe et capteur de mesure dote d'un systeme composite de ce type
US7299699B2 (en) 2004-10-05 2007-11-27 Endress + Hauser Flowtec Ag Composite system, method for its manufacture, and measurement pickup using such a composite system
DE102007059182A1 (de) * 2007-12-06 2009-06-10 Viega Gmbh & Co. Kg Verfahren zum Herstellen einer unlösbaren Verbindung sowie unlösbare Verbindung zwischen einem Fitting und einem Rohr, Fitting für ein Rohr mit einem vorgegebenen Innendurchmesser und lösbare Verbindung zwischen mindestens einem Fitting und einem Fittinggrundkörper

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1155464A (fr) * 1954-11-16 1958-05-05 Procédé de liaison définitive de tubes métalliques
US3208757A (en) * 1963-10-23 1965-09-28 Pyramid Ind Inc Joint for plastic pipe
FR1486386A (fr) * 1965-07-15 1967-06-23 Procédé et dispositif d'assemblage d'éléments tubulaires
FR1486657A (fr) * 1966-07-13 1967-06-30 Procédé et dispositif d'assemblage d'éléments tubulaires
US3529856A (en) * 1969-01-08 1970-09-22 Dumont Aviat Associates Coupling and method of forming same
FR2183359A5 (fr) * 1972-05-04 1973-12-14 Bretagne Atel Chantiers
US3868131A (en) * 1973-11-30 1975-02-25 Ultra Centrifuge Nederland Nv Methods and device for welding a metal pipe to a metal body by means of an explosive charge
FR2410203A1 (fr) * 1977-11-24 1979-06-22 Nitro Nobel Ab Procede pour raccorder un tuyau metallique interne avec un tuyau metallique externe l'entourant
GB1551816A (en) * 1976-07-30 1979-09-05 Yorkshire Imperial Metals Ltd Method of forming a seal between a tubular member and another member
FR2537244A1 (fr) * 1982-12-03 1984-06-08 Nitro Nobel Ab Joint entre deux tuyaux de preference metalliques et son procede d'obtention

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1155464A (fr) * 1954-11-16 1958-05-05 Procédé de liaison définitive de tubes métalliques
US3208757A (en) * 1963-10-23 1965-09-28 Pyramid Ind Inc Joint for plastic pipe
FR1486386A (fr) * 1965-07-15 1967-06-23 Procédé et dispositif d'assemblage d'éléments tubulaires
FR1486657A (fr) * 1966-07-13 1967-06-30 Procédé et dispositif d'assemblage d'éléments tubulaires
US3529856A (en) * 1969-01-08 1970-09-22 Dumont Aviat Associates Coupling and method of forming same
FR2183359A5 (fr) * 1972-05-04 1973-12-14 Bretagne Atel Chantiers
US3868131A (en) * 1973-11-30 1975-02-25 Ultra Centrifuge Nederland Nv Methods and device for welding a metal pipe to a metal body by means of an explosive charge
GB1551816A (en) * 1976-07-30 1979-09-05 Yorkshire Imperial Metals Ltd Method of forming a seal between a tubular member and another member
FR2410203A1 (fr) * 1977-11-24 1979-06-22 Nitro Nobel Ab Procede pour raccorder un tuyau metallique interne avec un tuyau metallique externe l'entourant
FR2537244A1 (fr) * 1982-12-03 1984-06-08 Nitro Nobel Ab Joint entre deux tuyaux de preference metalliques et son procede d'obtention

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002494A1 (de) * 1990-01-29 1991-08-08 Airbus Gmbh Rohrverschraubung
US5992897A (en) * 1995-02-23 1999-11-30 Bg Plc Joining lined pipe items
WO2006037722A1 (fr) * 2004-10-05 2006-04-13 Endress+Hauser Flowtec Ag Systeme composite, procede de fabrication associe et capteur de mesure dote d'un systeme composite de ce type
US7299699B2 (en) 2004-10-05 2007-11-27 Endress + Hauser Flowtec Ag Composite system, method for its manufacture, and measurement pickup using such a composite system
CN101072983B (zh) * 2004-10-05 2010-05-05 恩德斯+豪斯流量技术股份有限公司 复合系统，其制造方法，以及具有这种复合系统的测量变送器
DE102007059182A1 (de) * 2007-12-06 2009-06-10 Viega Gmbh & Co. Kg Verfahren zum Herstellen einer unlösbaren Verbindung sowie unlösbare Verbindung zwischen einem Fitting und einem Rohr, Fitting für ein Rohr mit einem vorgegebenen Innendurchmesser und lösbare Verbindung zwischen mindestens einem Fitting und einem Fittinggrundkörper
DE102007059182B4 (de) * 2007-12-06 2017-04-13 Viega Gmbh & Co. Kg Verfahren zum Herstellen einer unlösbaren Verbindung sowie unlösbare Verbindung zwischen einem Fitting und einem Rohr, Fitting für ein Rohr mit einem vorgegebenen Innendurchmesser und lösbare Verbindung zwischen mindestens einem Fitting und einem Fittinggrundkörper

Also Published As

Publication number Publication date
GB2189562A (en) 1987-10-28
GB8710512D0 (en) 1987-06-03
GB2189562B (en) 1989-01-11

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