WO1991002186A1 - Dispositif d'insertion pour l'assemblage de conduites - Google Patents

Dispositif d'insertion pour l'assemblage de conduites Download PDF

Info

Publication number
WO1991002186A1
WO1991002186A1 PCT/GB1990/001235 GB9001235W WO9102186A1 WO 1991002186 A1 WO1991002186 A1 WO 1991002186A1 GB 9001235 W GB9001235 W GB 9001235W WO 9102186 A1 WO9102186 A1 WO 9102186A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
recesses
elongate
portions
members
Prior art date
Application number
PCT/GB1990/001235
Other languages
English (en)
Inventor
Colin Waterhouse
Original Assignee
Just-A-Spool Limited
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 GB898918081A external-priority patent/GB8918081D0/en
Priority claimed from GB909006806A external-priority patent/GB9006806D0/en
Application filed by Just-A-Spool Limited filed Critical Just-A-Spool Limited
Publication of WO1991002186A1 publication Critical patent/WO1991002186A1/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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
    • F16L27/1274—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of a swivel nut
    • 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

Definitions

  • the invention is concerned with insert devices suitable for use in the construction and/or maintenance of an arrangement of pipes involving the provision of a fluid path through a series of pipe lengths.
  • a problem which frequently arises is to provide, say, a valve, either a flow control valve or a relief valve, in a pipeline so as to be positioned between the adjacent ends of two lengths of pipe, that is, intervening between two pipe portions. It may frequently happen that in the construction of a pipeline, the required valve or flow meter to be inserted is not immediately available. Delay therefore arises, whether of hours or days, before the pipeline can be continued beyond the site of the valve with any certainty that when the valve is eventually inserted in position, the gap left for it will prove to be dimensioned to receive it accurately.
  • an insert device for use in the construction and/or maintenance of an arrangement of pipes, comprising a body portion having at least two recesses each adapted adjustably to receive an elongate member extending therefrom, each of said elongate members including a head portion extending radially of the elongate member, at an outer free end portion thereof, said head portion being apertured to receive fastening members and adapted to be secured to open ends of pipe portions.
  • the recesses are internally screw threaded to receive said elongate members in the form of threaded rods.
  • the elongate members may comprise portions capable of telescopic movement with respect to the body portion.
  • each head portion is provided with a reference point co-axial with a longitudinal axis of the associated elongate member.
  • the head portions may be provided with at least two elongate apertures to provide tolerances for alignment with bolt-receiving bores in an abutment flange of the pipe portion.
  • the head portions may be in the form of a circular disc or plate member provided with a series of apertures in a circular array and adapted to align with bolts received in an abutment flange of the pipe portion.
  • each said circular disc or plate member may be provided with a nipple adapted to receive, when uncapped, a pressure-measuring device or manometer, or alternatively, a bypass passage in the form of a tube.
  • a bypass tube will permit the pipe to remain in service during the time the valve is removed, if desired. Alternatively, it enables a pipe to be pressure-tested in the absence of the valve.
  • an insert device as described in the fifth paragraph of the present specification may be provided head portions which comprise annular disc or plate members provided with a series of apertures in a circular array and adapted to align with bolts received in an abutment flange of a pipe portion, in which said elongate members comprise hollow tubular rods and in which each of said recesses are in communication with the or each other recess to form a passage through the body portion and the elongate members, sealing means being provided to ensure a fluid-tight fit between the elongate members and the passage-forming recesses of the body portion.
  • the hollow tubular elongate members may be initially slidably received in the passage-forming recesses, 'lip portions of the recesses being adapted to be clamped by an annular sealing device, for example a metal olive, including a securing nut.
  • an annular sealing device for example a metal olive, including a securing nut.
  • Fig. 1 is a perspective view of a first device according to the invention
  • Figs. 2,3,4,5 and 6 are perspective views of a second, third, fourth, fifth and sixth device respectively;
  • Fig. 7 shows two pipe portions having open ends to be bridged by the first device of Fig. 1;
  • Fig. 8 shows the first device in the course of use
  • Figs. 9-13 show various ways of mounting pipes and devices according to the invention.
  • Figure 14 shows a longitudinal section through a -5 -
  • the first device shown in Fig. 1, comprises a body portion 2 having a generally L-shaped side view, end portions of the body portion being provided with recesses 4 which are screw-threaded to receive elongate members in the form of threaded rods 6. Mounted on each rod is a lock nut 8.
  • Each rod 6 is provided with a fixed head portion 10 comprising a cross member provided with elongate slots 12.
  • a centrally disposed reference point 14 On an outwardly facing surface of each head portion 10 is a centrally disposed reference point 14 arranged co-axially with a longitudinal axis of the associated rod 6. The purpose of the reference point will be explained below.
  • Fig. 2 shows a second, device similar to that of Fig. 1, but differing in that the second device comprises a body portion 16 which is adapted to accept a third rod 6 with its associated head portion 10.
  • body portion 18 having a generally T-shaped configuration is shown in Fig. 3.
  • the head portions 10 of the devices shown in Figs. 1 - 3 are elongate in shape and adapted to span the open mouth of a pipe portion 20, shown in Fig. 2 in dotted line.
  • Bolts 22 secure a flange 24 to the pipe portion 20 with respect to the head portion 10, passing through the slots 12. It will be appreciated that because the slots are elongated, a range of diameters of pipe 20 may be accommodated.
  • Fig. 4 shows a fourth device similar in many respect to that of Fig. 1, with the exception that one of the rods 6 has a head portion 26 comprising a disc-like plate provided with bores 28 corresponding in layout with the bolt receiving apertures in a pipe portion flange.
  • the plate 26 may therefore be used as an end cap for a pipe portion, to blank off the mouth thereof.
  • a nipple 30 is provided to receive a pressure testing or monitoring device (not shown) as required, the nipple having a cap 32 when not in use.
  • Fig. 5 shows an arrangement in which a fifth device is provided with a linear body portion 34 having two opposite rods 6 extending therefrom, each having a disc-like plate 26 as its head portion. Nipples 30' of the two plates are linked by a flexible pipe 36 which, in use, enables the full lengtl ⁇ of pipework to be checked for leaks even though an intervening valve is absent and a device according to the invention is inserted.
  • Such a linear body portion 34 may of course also be used with head portions 10' (Fig. 6), which are similar to the head portions 10 shown in Figs. 1 - 3. With each type of head portion, an intervening gasket may be used if required, e.g. for blanking off the partially open pipe end.
  • FIG. 7 shows a typical situation in which the present invention finds particular use.
  • pipe network a pipe section 38 is placed in position leading to a bend in the path of the pipework at which a valve (not shown) is to be inserted.
  • a second length of pipe section 40 is to be connected to the valve so as to continue the fluid.
  • valve may not be available for some reason.
  • substitute spacer devices may be fabricated to simulate the dimensions of the valve. Where as in the present instance, an angled bend needs to be taken into consideration, it is not easy accurately to make such a fabricated spacer nor to attach it to a flange 42 of the pipe 38 in such a way that the second pipe 40 can be accurately positioned with respect to the absent valve. Inaccuracies almost inevitably arise and when attempts are made to position the valve itself in due in place of the spacer, the gap is found to be wrongly dimensioned.
  • Two dimensions a and b are critical in the situation illustrated in Fig. 7.
  • Dimension a is taken between the centre line of pipe portion 40 and the contact face of the flange 42.
  • Dimension b is taken between the centre line of pipe portion 38 and the contact face of a flange 44 of the pipe 40. If these two dimensions are accurately taken from the technical specification data of the valve and reproduced in the manner explained below, the valve will fit exactly.
  • the operator will therefore take a first device of the kind shown in Fig. 1 and will rotate the head portion 10a, see Fig. 8, until the distance between the centre line of head portion 10b, identified visually by the reference point 14, and the plane of the outer face of head portion 10a is exactly as dimension a.
  • the lock nut 8 is screwed tight and the operator then rotates the head portion 10b which moves outwardly of the body portion 2 (arrow A) until the distance between the centre line of head portion 10a (reference point 14) and the plane of the outer face of the head portion 10b is exactly as dimension b.
  • the second lock nut is then tightened.
  • the device is secured to the pipe portion 38 by means of two bolts 46 and the second pipe portion 40 may then be secured in a similar manner to the head portion 10b. Construction of the pipework may then continue. When the valve is available, the device may be removed and the valve will be found to fit accurately in place.
  • Fig. 9 shows a floor mountable support bracket 48 adapted to engage a device similar to that shown in Fig. 6.
  • the bracket 48 has a clamp 49 and a screw-threaded insert 50 hich permit accurate heightwise adjustment. This type of bracket may also be used to support the -9 -
  • an expandible T-shaped support 52 such as is shown in Fig. 11 may be used to span a space between joists or to engage with the I-shaped flanges thereof by means of right-angle brackets 54 (Fig. 12) , a clamp 56 extending from the support adapted to engage a body portion such as portion 34 of Fig. 6.
  • the T-shaped support 52 may be vertically or horizontally (Fig. 13) orientated.
  • the seventh device shown in Fig. 14, comprises a body portion 60 in the form of a length of heavy duty hollow pipe having an internal thread 62. Lip portions 64 of the pipe body portion 60 are provided with an external thread 66 and an inturned flange 68 having a frusto-conical surface 70.
  • a hollow elongate member 72 is received in each of the two end portions of the pipe body portion 60. Inner end portions of each member are provided with an annular member 74 which has an external thread engaging the thread 62 so as to permit adjustment of the distance by which the member 72 extends from the body portion 60. At the opposite end of each member 72 is a head portion 76 in the form of an annular pipe flange, sealingly secured at 78 to the member 72 to provide passage for fluid.
  • the device may therefore be introduced between open pipe ends to replace a valve-containing section as before. During the time the device is in place the main pipework may be returned to normal use to carry liquid therethrough.
  • a stop-valve or alternatively a pressure-measuring device, may be provided at a location 84 indicated by chain-dot lines at an intermediate zone of the body portion 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipeline Systems (AREA)

Abstract

L'invention se rapporte à des dispositifs d'insertion conçus pour être utilisés dans la construction ou la maintenance d'un assemblage en série de tubes formant une conduite. Lors de l'insertion de vannes dans les espaces de séparation des tubes de la conduite, soit pendant le montage soit après la réparation, la distance correcte entre les extrémités de tubes adjacents est maintenue au moyen d'un dispositif comprenant une partie de corps (2; 34) présentant au moins deux évidements (4) conçus réglables de façon à recevoir un élément allongé (6; 60) comportant des parties de tête (17; 76) lesquelles permettent la fixation du dispositif aux extrémités ouvertes des parties de tubes (20; 38). Un passage de dérivation temporaire approprié peut être assuré soit par un tube de dérivation (36) soit par des éléments allongés creux (60). Un point de référence (14) situé sur la partie de tête d'un dispositif destiné à être utilisé selon un angle droit dans la conduite contribue à assurer un maintien précis de l'espacement entre les vannes.
PCT/GB1990/001235 1989-08-08 1990-08-08 Dispositif d'insertion pour l'assemblage de conduites WO1991002186A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8918081.4 1989-08-08
GB898918081A GB8918081D0 (en) 1989-08-08 1989-08-08 Pipework insert device
GB909006806A GB9006806D0 (en) 1990-03-27 1990-03-27 Pipework insert device
GB9006806.5 1990-03-27

Publications (1)

Publication Number Publication Date
WO1991002186A1 true WO1991002186A1 (fr) 1991-02-21

Family

ID=26295718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/001235 WO1991002186A1 (fr) 1989-08-08 1990-08-08 Dispositif d'insertion pour l'assemblage de conduites

Country Status (1)

Country Link
WO (1) WO1991002186A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29514818U1 (de) * 1995-09-15 1995-11-09 Vieregge Uwe Teleskoprohranordnung
WO2001075413A1 (fr) * 2000-04-03 2001-10-11 In Sync Mechanical Contracting Ltd. Dispositifs de controle de plomberie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB136456A (en) * 1919-05-13 1919-12-18 Walter Ernest Goodwin Means for Effecting the Ready Repair or Joining of Fluid Conveying Pipes and for other Coupling Purposes.
US1363974A (en) * 1920-12-28 Expansion pipe-joint
US3865410A (en) * 1972-09-29 1975-02-11 Norton Mcmurray Manufacturing Compression joint or coupling for pipes
DE2536837A1 (de) * 1975-08-19 1977-03-10 Kraftanlagen Ag Passtueck

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1363974A (en) * 1920-12-28 Expansion pipe-joint
GB136456A (en) * 1919-05-13 1919-12-18 Walter Ernest Goodwin Means for Effecting the Ready Repair or Joining of Fluid Conveying Pipes and for other Coupling Purposes.
US3865410A (en) * 1972-09-29 1975-02-11 Norton Mcmurray Manufacturing Compression joint or coupling for pipes
DE2536837A1 (de) * 1975-08-19 1977-03-10 Kraftanlagen Ag Passtueck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29514818U1 (de) * 1995-09-15 1995-11-09 Vieregge Uwe Teleskoprohranordnung
WO2001075413A1 (fr) * 2000-04-03 2001-10-11 In Sync Mechanical Contracting Ltd. Dispositifs de controle de plomberie
US6840090B2 (en) * 2000-04-03 2005-01-11 In Sync Mechanical Contracting Ltd. Plumbing testing devices

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