WO1991006801A1 - Procede et dispositif permettant le montage etanche de dispositifs sur un tube sous pression - Google Patents

Procede et dispositif permettant le montage etanche de dispositifs sur un tube sous pression Download PDF

Info

Publication number
WO1991006801A1
WO1991006801A1 PCT/SE1990/000662 SE9000662W WO9106801A1 WO 1991006801 A1 WO1991006801 A1 WO 1991006801A1 SE 9000662 W SE9000662 W SE 9000662W WO 9106801 A1 WO9106801 A1 WO 9106801A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
tube
channel
mounting unit
expandable
Prior art date
Application number
PCT/SE1990/000662
Other languages
English (en)
Inventor
Kai Heed
Anne WIKENGÅRD-HEED
Original Assignee
Kai Heed
Wikengaard Heed Anne
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
Application filed by Kai Heed, Wikengaard Heed Anne filed Critical Kai Heed
Publication of WO1991006801A1 publication Critical patent/WO1991006801A1/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
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • 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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
    • F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe

Definitions

  • the present invention relates to a method to be able to arrange an object in a pressurized tube and means for carrying out the method according to the preamble of the following claims.
  • a method for arranging a body in a tube containing fluid comprises the following steps; arranging a mounting unit on a tube at a location where the arrangement of said body is wanted in such a way that a first sealing means brings about a sealing between the tube and the mounting unit with relation to the surroundings and an area where a hole shall be made in said tube; inserting a drill in .said mounting unit through a channel comprising a second sealing means, that shall seal said channel against the surroundings when the drill or the like has been inserted in the channel; inserting the drill through said channel whereby a flap is opened in a closable valve arrangement that is arranged between the inner end of said channel and a space; making the hole by means of said drill; after having made the hole taking out the drill, whereby after the drill has reached completely into the channel the closeable flap returns to its closed position either by means of its own elasticity or the pressure in the tube; inserting said body into said channel and arranging it in the hole.
  • a disadvantage with such a method is that the mounting unit cannot be de-mounted without occurrence of leakage.
  • the object with the present invention is to attain a method which eliminates the above said disadvantage so that the mounting unit can be de-mounted without occurrence of any leakage.
  • Said object is obtained by means of a method i.e. characterized in that said body is taken out of the hole and out of the mounting unit and that an expandable sealing body by means of a tool sealingly is mounted in said hole, whereupon the mounting unit can be de-mounted without risk for leakage.
  • a further object of the invention is to obtain a method by which it is possible to simply arrange a desired body in pressurized tubes provided with holes, in which holes expandable sealing elements are arranged.
  • fig. 1 partly in section shows a mounting unit comprised in a blocking arrangement according to the invention
  • figs. 2-5 show parts, which are contained in the blocking arrangement according to the invention
  • fig. 6 shows an end-view of the mounting unit according to the invention corresponding to the embodiment in fig. 1
  • fig. 7 shows a longitudinal section through the mounting unit in a stage at hole making of a tube
  • fig. 8 shows a preferred expandable element according to the invention
  • fig. 9 shows said expandable element mounted in a hole in a tube
  • fig. 10 partly in sections shows a mounting unit and one there above arranged expandable sealing arrangement and a preferred mounting tool
  • fig. 11 shows said expandable element at a stage when this is mounted by means of the mounting tool.
  • Figs. 1-6 describe the construction of and the parts of a blocking arrangement according to the invention.
  • the blocking arrangement consists of a mounting unit 1, which consists of two mounting halves 2, 3 which together are intended to enclose a tube 4, that contains a fluid under pressure, for example water or some other fluid, gas or the like.
  • the two mounting halves 2, 3 form a substantially cylindrical unit, where the two mounting halves have flanges 4, 5, 6, 7 for connecting element in the shape of screws, i.e. in the example shown four screws 8, which are intended to be inserted through holes in one flange 4 and to be screwed in threaded holes in the other flange 6.
  • the two mounting halves are intended to sealingly abut against the cylindrical surface 9 of the tube and is therefore provided with inner cylindrical concave inner surfaces 10 intended to delimit a substantially cylindrical space and to sealingly abut against the tube.
  • the space extends through the hole mounting unit 1 and includes two circular openings, through which the pipe 4 can extend through the cavity.
  • a seal 11 has been arranged which is applied between a part of the cylinder shaped inner surface 10 and one of the mounting halves 2 and the tube 4.
  • a pipe socket 12 is located, the appearance of which appears best from fig. 1. This shows a for example perpendicular to the tube 4 directed straight channel 13, which in an opening 14 ends in the cylinder shaped surface 10 of one of the mounting halves 2.
  • the channel 13 has a circular section and shows an outer end having an opening 15, which is adapted to normally be closed by means of a plug, sealing cover 16 or the like, which is intended to be threaded around the outer end of the pipe socket 12.
  • the mounting unit is advantageously in its one end shaped with connecting devices for direct connecting to a pipe coupling, valve or the like, as is shown in fig. 1.
  • the mounting halves 2, 3 have together an attaching flange 17 having inner threads for connection to a valve 18 having an outer threaded part 19 in at least one of its ends.
  • Fig. 2 shows a protection sleeve 20 in the shape of a cone of for example plastics or steel, the object of which shall be described more in detail below.
  • Fig. 3 shows a bellow 21 made in a highly elastic material, for example rubber and due to that it is easily changeable as to the shape.
  • the bladder 21 is longitudinal and has preferably a circular section with one in the neutral position shown in fig. 3 substantially cylindrical surface 22 and also one substantially cylindrical cavity 23.
  • the bladder 21 is closed in its one end 24 and has an opening 25 in its opposite end, around which opening an edge flange 26 has been arranged.
  • the bladder 21 is intended to be connected by means of its opening 25 to a source for pressurized air or a source for a pressurized liquid to expand to a body for blocking the tube 4 in a way which shall be described further below.
  • Fig. 4 shows a special drill 27 having a drill edge 28 and a cutting edge 29, the length of which is adapted to the thickness of the material that is to be penetrated.
  • the drill 27 has further a stop flange 30, which stops the drill when the material has been penetrated.
  • the upper end 31 of the drill is an attachment end which is intended to be attached to a chuck of a conventional electric drilling machine.
  • valve 5 shows a valve 32 having a nut 33, by means of which the valve is intended to be screwed to the threaded part of the upper end of the pipe socket 12.
  • the valve has an inner through going channel 34, which in the upper end of the valve via an opening 60 is intended to be connected to a pressurized fluid conduit.
  • the channel 34 ends downwardly in at least one opening 35 in a part 36, on which the bellow 21 is intended to be put.
  • the valve has further a seat 37 in the shape of a neck which makes the fastening organ for the bellow by forming a support for its edge flange 26.
  • the valve 32 has further advantageously one clack valve not shown for maintaining an overpressure in the bladder, when this has been put under pressure and the connecting pressurized tube has been removed.
  • this returnable tongue 40 can be a separate part which accordingly is not a part of a membrane, which separate part 40 consists of a sealing element having a diameter that exceeds the diameter of the channel 13 and that via an elastic attaching part is arranged in the cavity 14.
  • a shaft seal 39 is arranged to form a sealing around the drill 27 when it is working.
  • the shaft sealing has accordingly a central hole adapted by its diameter for sealingly abutting against for example the walls of the drill.
  • Mounting of a body 21, 32 in a tube for pressurized fluids by means of the arrangement according to the invention occurs in the following way.
  • the mounting unit 1 is mounted around the tube 4 at such a place where it is wanted.
  • a mounting unit is chosen having a diameter which is adapted for the outer diameter of the actual tube.
  • the two mounting halves 2, 3 of the mounting unit are separated and are put on the tube from two opposite sides thereof turned against each other and are fastened to each other by means of the screws 8 which are tightened relatively strongly so that the seal 11 is clamped and seals an area between the mounting unit 2 and the surface 4 of the pipe.
  • a sealing cap is screwed on.
  • the sealing cap 16 is removed by screwing this off so that the opening 15 to the channel 13 is free.
  • the stage when making the hole is commenced by attaching the drill 27 at its attaching end 31 in the chuck of a drilling machine and put down in the channel 13 and pressed against the membrane 38 (fig. 4) or the sealing organ 40 (fig. 11), so that the tongue 40 is swung down and makes an opening 41, see fig. 7.
  • the diameter of the drill with relation to its outer diameter corresponds mainly to the inner diameter of the channel 13 so that the drill thereby gets a good guidance in the channel at the same time as the drill sealingly abuts against the shaft seal 39. Then the drill 27 is rotated while its drilling edge 28 is pressed against the surface of the tube 4 to drill a hole in the pipe.
  • the stopping flange 30 will, when the drill has penetrated the wall of the tube, abut against the upper end of the pipe socket and prevent further penetration of the drill or the drilling chuck comes into contact with the shaft seal 39. Thereafter the drill 27 is removed and the lip 40 returns to its sealing position by its elasticity and by support of the overpressure in the interior of the tube.
  • the cracking grooves (fig. 7) is so obliquely made that the surfaces seal against each other at the same time as the lip 40 gets support against an abutting surface 58 at the transition between an enlarged part 42 of the hole 13 to a more narrowed part which corresponds to the diameter of the drill.
  • a period follows when a desired body can be applied in the hole 47, for example a bladder 21 for blocking of the flow in the tube or a thermometer.
  • a sealing arrangement 70 as shown in fig. 8 in the hole 47, the mounting unit thereafter can be de ⁇ mounted.
  • a sealing arrangement consists of an expandable part 71.
  • This expandable part is suitably an elastomer.
  • At its one end which is thought to be applied at the outer side of the tube 4 is a supporting surface 73.
  • This supporting surface 73 consists of a relatively rigid material and has preferably a completely plane shape, but it can also be arced as shown in fig. 8.
  • a screw 72 is inserted through a hole.
  • This screw 72 co-operates with a threaded element 74 which is arranged suitably moulded in the expandable body 71.
  • the threaded element 74 is completely included in the expandable part 71. This is a measure which in combination with a blunt tip of the screw 72 assures absolutely sealing function of the element 70.
  • the diameter of the lower part 71 of the seal 70 is smaller in its non- expanded shape than the diameter of the drill edge 29 and also the hole 47. The outer diameter of the supporting body 73, however, exceeds the diameter of the hole 47.
  • a sealing element 70 is shown arranged at a tube 4 sealingly in a hole 47.
  • the screw 72 has been screwed in into the threaded element 74 and how then the expandable part 71 of the body has expanded and therethrough been arranged sealingly in the hole 47. Due to the fact that the material is an elastomer the material is expanded at the blunt tip of the screw so that no hole is made, which assures the sealing function of the arrangemen .
  • a mounting tool 80 preferably a screw driver, is used for applying the seal 70.
  • This screw driver 80 has a handle 83 at which there is a shaft 81 the diameter of which to a substantial extent is adapted to sealingly co ⁇ operate with the sealing element 39 in the channel 13.
  • the diameter of the shaft 81 is somewhat greater than the smallest diameter of the seal 39.
  • a blade shaped organ 82 which shall co-operate with a groove in the screw 72.
  • the screw driver and screw 72 are suitably made in ferro-magnetic material.
  • the sealing element 70 is thereafter mounted by simply pushing it in by means of the mounting tool 80 and thereafter letting it expand by means of a turn in for example in veer direction if it is a right-threaded screw. In the same way as when drilling or introduction of other bodies in the channel 13 the sealing element 39 and the flap element 40 seal against the surrounding. After complete expansion, i.e. sealingly arranging of the expandable element 70, the mounting unit 1 can be demounted. The method results in a saving as a mounting unit can be used for a number of holes. By application of the mounting unit 1 on a tube 4 where an expandable element 70 already has been arranged it is required that the channel 13 is mounted co-axially with the sealing element 70.
  • tube parts having a plurality of expandable elements 70 it may be preferable to pre-mount tube parts having a plurality of expandable elements 70.
  • a pre- mounting occurs then before the tube has been put under pressure suitably already in connection with the production of the tube. In this way one can prepare a tube having a plurality of possibilities for later inspection and control.
  • the invention is not limited to the above described and to the embodiment examples shown in the drawings, but can be varied within the scope of following claims. It is for example thinkable as is shown in fig. 11 that the socket 12 of the mounting unit 1 is divided in two sections. Further it is of course possible to use that form of known co ⁇ operation per se between the screw 72 and the mounting element 1 which is judged to be most suitable, for example a socket head cap screw or a cross-slotted screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Measuring Fluid Pressure (AREA)
  • Prostheses (AREA)

Abstract

L'invention se rapporte à un procédé permettant d'introduire un corps (21, 32) dans un trou (47) ménagé dans un tube sous pression (4). Pour permettre l'implantation de ce corps de façon novatrice on utilise une unité de montage (1) connue en soi. L'invention propose un procédé qui permet de démonter l'unité de montage (1), après que le trou (47) du tube (4) a été utilisé, sans causer de fuites, grâce à l'utilisation d'un élément expansible (70).
PCT/SE1990/000662 1989-10-25 1990-10-17 Procede et dispositif permettant le montage etanche de dispositifs sur un tube sous pression WO1991006801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8903544A SE464727B (sv) 1989-10-25 1989-10-25 Metod och anordning att temporaert anordna en kropp i en trycksatt ledning
SE8903544-8 1989-10-25

Publications (1)

Publication Number Publication Date
WO1991006801A1 true WO1991006801A1 (fr) 1991-05-16

Family

ID=20377276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000662 WO1991006801A1 (fr) 1989-10-25 1990-10-17 Procede et dispositif permettant le montage etanche de dispositifs sur un tube sous pression

Country Status (3)

Country Link
AU (1) AU6632090A (fr)
SE (1) SE464727B (fr)
WO (1) WO1991006801A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671584A1 (fr) * 1994-03-09 1995-09-13 John Derek Guest Raccord de tuyaux
NL1006350C2 (nl) * 1997-06-18 1998-12-21 Gastec Nv Werkwijze voor het afsluiten van de gastoevoer en inrichting voor het uitvoeren van een dergelijke werkwijze.
CN106248490A (zh) * 2016-07-20 2016-12-21 中冶建工集团有限公司 一种压力管道快速试压接头及试压方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501299C2 (sv) * 1993-05-26 1995-01-09 Tigerholm Ab Metod för att blockera rörledningar och anordning för genomförande av metoden

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739529A (en) * 1953-11-23 1955-11-02 Wingfoot Corp Tyre valve assembly
DE3511726A1 (de) * 1985-03-30 1986-10-02 Immanuel 3203 Sarstedt Jeschke Vorrichtung zum absperren von gasrohren
SE460073B (sv) * 1986-12-04 1989-09-04 Anne Wikengaard Heed Anordning foer tillfaellig blockering av fluidumledning

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739529A (en) * 1953-11-23 1955-11-02 Wingfoot Corp Tyre valve assembly
DE3511726A1 (de) * 1985-03-30 1986-10-02 Immanuel 3203 Sarstedt Jeschke Vorrichtung zum absperren von gasrohren
SE460073B (sv) * 1986-12-04 1989-09-04 Anne Wikengaard Heed Anordning foer tillfaellig blockering av fluidumledning

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671584A1 (fr) * 1994-03-09 1995-09-13 John Derek Guest Raccord de tuyaux
NL1006350C2 (nl) * 1997-06-18 1998-12-21 Gastec Nv Werkwijze voor het afsluiten van de gastoevoer en inrichting voor het uitvoeren van een dergelijke werkwijze.
EP0886099A1 (fr) * 1997-06-18 1998-12-23 Gastec N.V. Procédé pour arrêter l'alimentation en gaz et dispositif pour la mise en oeuvre du procédé
CN106248490A (zh) * 2016-07-20 2016-12-21 中冶建工集团有限公司 一种压力管道快速试压接头及试压方法

Also Published As

Publication number Publication date
SE8903544A (fr) 1991-04-26
SE464727B (sv) 1991-06-03
SE8903544D0 (sv) 1989-10-25
AU6632090A (en) 1991-05-31

Similar Documents

Publication Publication Date Title
US4949744A (en) Method and device for mounting a body in a conduit containing fluid
US4242164A (en) Gasket for sealing a pipe in a porthole
US4552170A (en) Line Insertable valve
US20100243090A1 (en) Mechanical clean-out test plug
US5676171A (en) Device for fluid blocking in a pipe line
US5353841A (en) Pneumatic plug for clean-out tees
US5234034A (en) Pneumatic plug device
WO1991006801A1 (fr) Procede et dispositif permettant le montage etanche de dispositifs sur un tube sous pression
JP2650021B2 (ja) パイプをふさぐ方法およびそのための装置
KR100561191B1 (ko) 상수관용 밸브 교체장치
RU2110779C1 (ru) Герметизированное устройство
HU214512B (hu) Elágazó csatlakozó műanyag csővezetékek számára
JPH0697078B2 (ja) 不断水型サドル分水栓の交換並びに拡孔工法およびその止水具
JP2006028946A (ja) 地盤改良用薬液注入装置
US5655283A (en) Corporation stop assembly
JP3806216B2 (ja) 流体の分岐方法
JP7296434B2 (ja) 撤去方法
JPH0236993Y2 (fr)
CS230791A3 (en) Inflatable and expulsion pad and a extensible jack being provided with said pad
JPH0814481A (ja) 水道管防食用密着コア
JPS6339620Y2 (fr)
JPH0351599A (ja) 水道配管等の管体の止水工法及びそれに使用される止水用器具
JP2521392Y2 (ja) 土中埋設管補修用止駒
JPH0115454Y2 (fr)
JP2681728B2 (ja) 配水用管の分岐工法とこれに使用する配水用管

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH DE DK ES FI GB HU JP KR LU NL NO RO SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA