DE10300417A1 - Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe - Google Patents

Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe Download PDF

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Publication number
DE10300417A1
DE10300417A1 DE2003100417 DE10300417A DE10300417A1 DE 10300417 A1 DE10300417 A1 DE 10300417A1 DE 2003100417 DE2003100417 DE 2003100417 DE 10300417 A DE10300417 A DE 10300417A DE 10300417 A1 DE10300417 A1 DE 10300417A1
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DE
Germany
Prior art keywords
ring
outer pipe
inner tube
fitting
pipes
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE2003100417
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German (de)
Inventor
Jörn Dipl.-Ing. Homann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brugg Rohr AG Holding
Original Assignee
Brugg Rohr AG Holding
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 Brugg Rohr AG Holding filed Critical Brugg Rohr AG Holding
Priority to DE2003100417 priority Critical patent/DE10300417A1/en
Publication of DE10300417A1 publication Critical patent/DE10300417A1/en
Withdrawn legal-status Critical Current

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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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
    • 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
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036—Joints for corrugated pipes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

The fitting for pipes has a threaded sleeve (11) screwed onto the end of the outer pipe (2) which is offset relative to the inner pipe (1). The threaded sleeve has a smooth cylindrical shoulder (11a) which is larger in relation to the outer pipe diameter. A cone ring (7) with a flanged section is fitted on the end of the inner pipe and its shoulder penetrating the smooth cylindrical shoulder. The threaded sleeve and cone ring are clamped by a threaded bolt (9) and form a cavity in which is fitted a sealing ring (10). A compression ring (6) is screwed onto the inner pipe, and a support ring (5) is screwed into the inner pipe.

Description

Die Erfindung betrifft eine Armatur für Leitungsrohre, die aus zwei koaxialen schraubenlinienförmig gewellten Leitungsrohren bestehen.The invention relates to a fitting for conduits, the two coaxial, helically corrugated conduits consist.

Aus dem DE-U-73 14 756 ist eine Armatur für Rohrleitungen bekannt, die aus zwei koaxialen gewellten Metallrohren bestehen und bei denen das Innenrohr mit einer wendelförmig aufgebrachten Armierung aus einem oder mehreren Metallbändern versehen ist, wobei der Zwischenraum zwischen den Rohren mit einem Druck beaufschlagt ist, der vom normalen Atmosphärendruck abweicht. Auf das gegenüber dem Innenrohr abgesetzte Ende des Außenrohres ist eine mit einem Flansch versehene Buchse aufgeschraubt. Die Buchse weist eine Durchgangsbohrung zur Verbindung des Zwischenraums mit einem Druck- oder Unterdruckerzeuger und/oder einer Kontrolleinrichtung auf. Das Ende des Innenrohres ist im Bereich des Flansches mit der Buchse stirnseitig verlötet. Die Buchse weist eine weitere Öffnung auf, in welche ein Lot einfüllbar ist, welches die Armierungslage mit der Buchse verbindet.From the DE-U-73 14 756 A fitting for pipelines is known which consists of two coaxial corrugated metal pipes and in which the inner pipe is provided with a helically applied reinforcement made of one or more metal strips, the space between the pipes being pressurized to a pressure which deviates from normal atmospheric pressure. A flange-provided bushing is screwed onto the end of the outer tube opposite the inner tube. The socket has a through hole for connecting the intermediate space to a pressure or vacuum generator and / or a control device. The end of the inner tube is soldered to the end of the flange in the area of the flange. The socket has a further opening, into which a solder can be filled, which connects the reinforcement layer to the socket.

Diese Armatur hat sich für auf dem Markt unter dem Handelsnamen bekanntgewordene Flexwell-Sicherheitsrohre bzw. Flexwell-Sicherheitsleitungen bewährt.This tap has been designed for the Marketed Flexwell safety tubes known under the trade name or Flexwell safety cables have proven their worth.

Der Nachteil dieser Armatur besteht darin, daß diese nicht in der Nähe von explosionsgefährdeten Anlagen montiert werden kann.The disadvantage of this valve is in that this not nearby of explosive Plants can be assembled.

Aus dem DE-U-295 18 712 ist eine flammlose Anschlußverbindung für schraubenlinienförmig gewellte Metallrohre bekannt, bei welcher in das gewellte Rohr ein Stützring eingeschraubt ist und auf das Ende des gewellten Rohres ein Druckring aufgeschraubt ist. Auf das Ende ist ein Anschlußstück aufgesteckt und zwar derart, daß zwischen dem Stützring, dem Ende des Innenrohres, dem Druckring und dem Anschlußstück eine Kammer zur Aufnahme eines Dichtungsrings entsteht. Beim Verspannen des Anschlußstücks mit dem Druckring wird der Dichtungsring, der vorzugsweise aus Graphit besteht, komprimiert und füllt die Kammer vollständig aus. Der Nachteil dieser Armatur ist darin zu sehen, daß diese nicht für Leitungsrohre aus zwei koaxialen Leitungsrohren geeignet ist.From the DE-U-295 18 712 a flameless connection is known for helically corrugated metal pipes, in which a support ring is screwed into the corrugated pipe and a pressure ring is screwed onto the end of the corrugated pipe. A connector is attached to the end in such a way that a chamber for receiving a sealing ring is formed between the support ring, the end of the inner tube, the pressure ring and the connector. When the connection piece is clamped with the pressure ring, the sealing ring, which is preferably made of graphite, is compressed and completely fills the chamber. The disadvantage of this fitting is that it is not suitable for conduits made from two coaxial conduits.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Armatur anzugeben, die für Leitungsrohre aus zwei koaxialen gewellten Metallrohren ohne Verwendung von offenen Flammen herstellbar ist.The present invention lies based on the task of specifying a fitting for line pipes from two coaxial corrugated metal tubes without the use of open ones Flames can be produced.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 erfaßten Merkmale gelöst.This task is performed by the in the indicator of claim 1 recorded Features solved.

Der wesentliche Vorteil der Erfindung ist darin zu sehen, daß die Armatur auch von ungeschultem Personal sicher hergestellt werden kann, indem vorgefertigte Bauteile verwendet werden.The main advantage of the invention can be seen in the fact that Valve can also be manufactured safely by untrained personnel can be used by prefabricated components.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen erfaßt.Further advantageous configurations the invention are covered in the subclaims.

Die Erfindung ist anhand des in der Figur schematisch dargestellten Ausführungsbeispiels näher erläutert.The invention is based on the Figure illustrated schematically illustrated embodiment.

Zur Vorbereitung einer Anschlußverbindung bzw. einer Armatur an dem Ende des Leitungsrohres wird zunächst das Außenrohr 2 gegenüber dem Innenrohr 1 abgesetzt. Zwischen dem Innenrohr 1 und dem Außenrohr 2 befindet sich eine Bandarmierung 12, welche eine mechanische Verklammerung des Innenrohres 1 und des Außenrohres 2 miteinander bewirkt.To prepare a connection or a fitting at the end of the conduit, the outer pipe is first 2 opposite the inner tube 1 discontinued. Between the inner tube 1 and the outer tube 2 there is a band reinforcement 12 , which is a mechanical clamping of the inner tube 1 and the outer tube 2 with each other.

Auf dem Außenrohr 2 kann noch ein nicht näher bezeichneter Kunststoffmantel und eine darunter befindliche Korrosionsschutzschicht vorgesehen sein.On the outer tube 2 a plastic jacket (not specified in more detail) and a corrosion protection layer located underneath can also be provided.

Zunächst wird auf das vom Außenmantel und der Korrosionsschutzschicht befreite Ende des Außenrohres 2 eine Gewindebuchse 11 aufgeschraubt. Die Gewindebuchse 11 weist einen glattzylindrischen Ansatz 11a auf, dessen Innendurchmesser größer ist als der Außendurchmesser des Innenrohres 1 bzw. der Bandarmierung 12.First, the end of the outer tube that has been freed from the outer jacket and the corrosion protection layer 2 a threaded bush 11 screwed. The threaded bush 11 has a smooth cylindrical approach 11a whose inner diameter is larger than the outer diameter of the inner tube 1 or the band reinforcement 12 ,

In den Ringspalt zwischen dem Ansatz 11a und dem Außenrohr 2 wird ein Dichtungsring 10 aus Graphit eingelegt. Anschließend wird ein Konusring 7 auf das Ende des Innenrohres 1 gesteckt und mittels der Spannbolzen 9 mit dem Gewindering 11 verspannt, wobei die Wellung am Ende des Außenrohres 2 gestaucht und der Dichtungsring 10 komprimiert wird und den Ringspalt abdichtet. Durch das Stauchen der Wellung des Außenrohres 2 stützt sich das Ende des Außenrohres 2 auf der Bandarmierung 12 ab.In the annular gap between the approach 11a and the outer tube 2 becomes a sealing ring 10 made of graphite. Then a cone ring 7 on the end of the inner tube 1 inserted and by means of the clamping bolts 9 with the threaded ring 11 braced, the corrugation at the end of the outer tube 2 compressed and the sealing ring 10 is compressed and seals the annular gap. By upsetting the corrugation of the outer tube 2 the end of the outer tube is supported 2 on the band reinforcement 12 from.

Ein Druckring 6 wird auf das Ende des Innenrohres 1 aufgeschraubt. Dabei wird die Bandarmierung 12 in dem durch die Konusflächen 6a und 7a gebildeten Spalt umgeformt und festgelegt. In das Ende des Innenrohres 1 wird dann ein Stützring 5 eingeschraubt, dessen glattzylindrisches Ende 5a aus dem Ende des Innenrohres 1 herausragt, auf welches ein Dichtungsring 3 aus Graphit aufgeschoben wird.A pressure ring 6 is on the end of the inner tube 1 screwed. The band reinforcement 12 in which through the cone surfaces 6a and 7a formed and formed gap. In the end of the inner tube 1 then becomes a support ring 5 screwed in, the smooth cylindrical end 5a from the end of the inner tube 1 protrudes on which a sealing ring 3 made of graphite.

Anschließend wird ein Anschlußstück 4 auf das Innenrohrende aufgesteckt und mittels der Schraubbolzen 8 gegen den Konusring 7 verschraubt. Dabei wird der Dichtungsring 3 umgeformt und komprimiert, so daß die durch das Ende des Innenrohres 1, den Druckring 6 und das Anschlußstück 4 gebildete Kammer vollständig ausgefüllt wird.Then a connector 4 plugged onto the inner tube end and by means of the screw bolts 8th against the cone ring 7 screwed. The sealing ring 3 reshaped and compressed so that through the end of the inner tube 1 , the pressure ring 6 and the connector 4 formed chamber is completely filled.

An der Stirnseite des Konusrings 7 kann noch eine Kammer mit einem Dichtring 13 vorgesehen sein, welcher den Spalt zwischen der Stirnseite des Konusrings 7 und der Stirnfläche des Anschlußstücks abdichtet.At the front of the cone ring 7 can still have a chamber with a sealing ring 13 be provided which the gap between the end face of the cone ring 7 and the face of the connector seals.

Mit 14 ist noch eine Überwachungsbohrung bezeichnet, welche den Ringspalt zwischen dem Innen- und dem Außenrohr mit einem Drucküberwachungsgerät verbindet.With 14 a monitoring bore is also designated, which connects the annular gap between the inner and the outer tube with a pressure monitoring device.

Claims (4)

Armatur für Leitungsrohre, die aus zwei koaxialen schraubenlinienförmig gewellten Metallrohren bestehen, gekennzeichnet durch folgende Merkmale: a) auf das gegenüber dem Ende des Innenrohres (1) abgesetzte Ende des Außenrohres (2) ist eine Gewindebuchse (11) mit einem gegenüber dem Außenrohrdruchmesser größeren glattzylindrischen Ansatz (11a) aufgeschraubt, b) auf das Ende des Innenrohres (1) ist ein mit einem Flanschteil versehener Konusring (7) aufgesteckt, dessen Ansatz in den glattzylindrischen Ansatz eindringt, c) Gewindebuchse (11) und Konusring (7) sind miteinander durch Schraubbolzen (9) verspannt und bilden eine Kammer, in welcher ein Dichtungsring (10) angeordnet ist, d) auf das Innenrohr (1) ist ein Druckring (6) aufgeschraubt, e) in das Innenrohr (1) ist ein Stützring (5) eingeschraubt, f) ein mit Flansch versehenes Anschlußstück (4) ist auf das Ende des Leitungsrohres derart aufgeschoben, daß der Flansch den Druckring (6) umgreift, g) zwischen dem aus dem Ende des Innenrohres (1) herausragenden Ende (5a) des Stützrings (5) und dem Flansch ist eine Kammer gebildet, in welcher sich ein Dichtring (3) befindet, der durch Verschrauben des Anschlußstücks (4) mit dem Konusring (7) mittels Spannbolzen (8) komprimiert ist.Fitting for conduit pipes, which consist of two coaxial, helically corrugated metal pipes, characterized by the following features: a) on the opposite of the end of the inner pipe ( 1 ) stepped end of the outer tube ( 2 ) is a threaded bush ( 1 1) with a larger cylindrical approach compared to the outer tube diameter ( 11a ) screwed on, b) on the end of the inner tube ( 1 ) is a cone ring with a flange part ( 7 ) attached, the shoulder of which penetrates the smooth cylindrical shoulder, c) threaded bushing ( 11 ) and cone ring ( 7 ) are connected to each other by bolts ( 9 ) clamped and form a chamber in which a sealing ring ( 10 ) is arranged, d) on the inner tube ( 1 ) is a pressure ring ( 6 ) screwed on, e) in the inner tube ( 1 ) is a support ring ( 5 ) screwed in, f) a flanged connector ( 4 ) is pushed onto the end of the conduit in such a way that the flange 6 ), g) between the end of the inner tube ( 1 ) outstanding end ( 5a ) of the support ring ( 5 ) and the flange, a chamber is formed in which a sealing ring ( 3 ) is located by screwing on the connector ( 4 ) with the cone ring ( 7 ) using clamping bolts ( 8th ) is compressed. Armatur nach Anspruch 1, dadurch gekennzeichnet, daß Konusring (7) und Druckring (6) miteinander korrespondierende Konusflächen (6a, 7a) aufweisen, zwischen denen eine auf dem Innenrohr (1) vorgesehene Armierungslage (12) eingespannt ist.Fitting according to claim 1, characterized in that the conical ring ( 7 ) and pressure ring ( 6 ) corresponding conical surfaces ( 6a . 7a ), between which one on the inner tube ( 1 ) intended reinforcement layer ( 12 ) is clamped. Armatur nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dichtungsringe (3, 10) aus Graphit bestehen.Fitting according to claim 1 or 2, characterized in that the sealing rings ( 3 . 10 ) consist of graphite. Armatur nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zwischen dem Konusring (7) und dem Anschlußstück (4) ein gekammerter Dichtring (13) vorgesehen ist.Fitting according to one of claims 1 to 3, characterized in that between the conical ring ( 7 ) and the connector ( 4 ) a chambered sealing ring ( 13 ) is provided.
DE2003100417 2003-01-09 2003-01-09 Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe Withdrawn DE10300417A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003100417 DE10300417A1 (en) 2003-01-09 2003-01-09 Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003100417 DE10300417A1 (en) 2003-01-09 2003-01-09 Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe

Publications (1)

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DE10300417A1 true DE10300417A1 (en) 2004-07-22

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DE2003100417 Withdrawn DE10300417A1 (en) 2003-01-09 2003-01-09 Fitting for pipes has threaded sleeve screwed onto end of outer pipe and has smooth cylindrical shoulder which is larger in relation to outer pipe diameter, and cone ring with flanged section is fitted on end of inner pipe

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2542812A1 (en) * 2010-03-02 2013-01-09 Omega Flex, Inc. Flanged fitting for use with tubing containment system
EP2933542A1 (en) * 2014-04-17 2015-10-21 Brugg Rohr AG Holding Connection for corrugated pipes
US20150322986A1 (en) * 2013-11-01 2015-11-12 Zhongshan Sirui Photographic Equipment Industry Co Ltd. Quick connection anti-loose apparatus
EP2984378A4 (en) * 2013-04-11 2016-11-30 Omega Flex Inc Fitting for tubing containment system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2542812A1 (en) * 2010-03-02 2013-01-09 Omega Flex, Inc. Flanged fitting for use with tubing containment system
EP2542812A4 (en) * 2010-03-02 2014-07-09 Omega Flex Inc Flanged fitting for use with tubing containment system
US8925976B2 (en) 2010-03-02 2015-01-06 Omega Flex, Inc. Flanged fitting for use with tubing containment system
AU2011223970B2 (en) * 2010-03-02 2015-06-11 Omega Flex, Inc. Flanged fitting for use with tubing containment system
EP2984378A4 (en) * 2013-04-11 2016-11-30 Omega Flex Inc Fitting for tubing containment system
US20150322986A1 (en) * 2013-11-01 2015-11-12 Zhongshan Sirui Photographic Equipment Industry Co Ltd. Quick connection anti-loose apparatus
EP2933542A1 (en) * 2014-04-17 2015-10-21 Brugg Rohr AG Holding Connection for corrugated pipes
US9651177B2 (en) 2014-04-17 2017-05-16 Brugg Rohr Ag Holding Coupling connection for corrugated pipes

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