WO2002023070A1 - Sealing system - Google Patents

Sealing system Download PDF

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Publication number
WO2002023070A1
WO2002023070A1 PCT/EP2001/008977 EP0108977W WO0223070A1 WO 2002023070 A1 WO2002023070 A1 WO 2002023070A1 EP 0108977 W EP0108977 W EP 0108977W WO 0223070 A1 WO0223070 A1 WO 0223070A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
sealing
swelling
sealing system
swellable
Prior art date
Application number
PCT/EP2001/008977
Other languages
German (de)
French (fr)
Inventor
Werner Berger
Holger Wack
Original Assignee
Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H.
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 Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. filed Critical Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H.
Priority to AU2001282062A priority Critical patent/AU2001282062A1/en
Publication of WO2002023070A1 publication Critical patent/WO2002023070A1/en

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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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/068—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing swelling under working conditions
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks

Definitions

  • the invention relates to a sealing system for socket pipes that is characterized by the ability to independently restore the sealing function in the event of a leak or independently of it by swelling of one or more swellable material strands located within the seal, and simultaneously monitors the sealing function.
  • the seal is usually a circular elastomer body adapted to the tube shape as a combined lip or pressure seal with a wide variety of geometric shapes.
  • the seals can be firmly installed in the pipe socket as well as at the tip end of the pipe. When assembling, the actual sealing part, the so-called ring collar, is pressed against the component to be inserted.
  • Sealing systems are known from GB 2273537, US 5172919 and PCT / EP98 / 07030, in which a combination of conventional seals (lip seal etc.) and swellable materials is present.
  • a combination of conventional seals lip seal etc.
  • swellable materials With the use of swellable polymers, the conventionally used seal is followed by a swellable seal or the swellable seal is integrated into the conventional seal. Only when a leak occurs - both from the inside out and from the outside in - is this swellable seal activated and leads to a permanent sealing of the system in a short time.
  • DE 19601652 AI provides the option of expanding the mechanical seal by means of a special compression material.
  • This compression material is conveyed from the pipe interior into the seal, for example, and is intended to restore the sealing function by increasing the volume of the seal. If the volume increase of the seal is not sufficient, the sealing function is ensured by flowing around the entire sleeve area by further increasing the pressure and opening correspondingly prepared areas by means of pressing material emerging from the seal.
  • a disadvantage of this system is the risk of the grouting material penetrating into possible channels in the pipe wall or into the pipe interior.
  • the disadvantages of the systems mentioned are to be overcome by a swellable sealing system from which the source material cannot escape and which, as an additional function, is monitored by appropriate sensors that monitor the tightness of the system.
  • a certain porosity of areas of the outer seal ensures that the medium that triggers the swelling process reaches the swellable area and provokes the swelling process as uniformly as possible in the entire swellable area.
  • the porosity can be achieved by the sealing material itself or by the installation of special additional materials such.
  • B. fibers or hollow fibers can be achieved.
  • media which trigger the swelling process can also be used in the swellable areas.
  • B. moisture distributing materials, e.g. B. fibers are installed.
  • the design of the sealing system can fall back on two basic functional principles.
  • the first embodiment consists in that the swelling process in the seal is only provoked in the event of a leak.
  • the second variant is that the swelling process of the seal is provoked during or after the pipe connection is made.
  • the first variant consists of a pressure sensor system. This principle enables the pressure increase within the source material or other sealing elements to be detected.
  • the second principle is a moisture sensor system. If appropriate moisture penetrates to the source material, this process would be detected by the sensors.
  • the function monitoring of the swellable area closest to the source medium can be carried out by connecting at least two swellable areas in series.
  • a further embodiment of the invention is that a separate test room is created between the swellable areas and this is monitored by sensors.
  • Figure 1 is a schematic representation of a sleeve area of a pipe with a seal.
  • FIG. 2 shows a first embodiment of a seal with integrated swelling material and a sensor system
  • Fig. 3 shows a second embodiment of a seal with integrated source material and sensors.
  • the reference numeral 1 here in each case a seal or a sealing material
  • the reference numeral 2 show a pipe-side or a socket-side end of pipes to be connected or to be sealed.
  • Figure 1 shows the usual arrangement of seals in the area of the end faces and on the circumferential side in the socket area for a pipe connection.
  • swelling materials 4 are introduced within the seal 1, which are in contact with the outside of the seal or the sleeve area or the pipe wall with a fiber-offset sealing material 3.
  • the swelling material 4 is caused to swell step by step via the fiber-offset sealing material 3, with the result that the volume is increased and the sealing properties are restored.
  • the sensors 5 arranged in the source material 4 according to FIGS. 2 and 3 can detect the substance triggering the swelling process or else the reaction, namely the change in volume of the source material.
  • the sealing function is only provided during or after the production of the pipe connection, in that the substance that triggers the swelling process is granted corresponding access to the areas in which the fiber-offset sealing material 3 is located, which in turn contains the source material 4 itself is connected. In this way, pipe connections can be created without the otherwise required force-intensive pressing in and existing tolerances can be compensated.
  • the sealing function is then produced when a substance triggering the swelling process comes into contact for the first time.

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

Abstract

The invention relates to a sealing system (1) for socket pipes (2). Said system is characterised by the capacity, in the event of leakage or independently thereof, to produce the sealing function autonomously by means of the swelling of at least one swellable area (4) situated inside the seal. Said system simultaneously monitors the sealing function and the swelling process by means of corresponding sensory mechanisms (5) which are arranged inside or outside the swellable areas (4).

Description

Dichtungssystem sealing system
Beschreibungdescription
Die Erfindung betrifft ein Dichtungssystem für Muffenrohre, dass sich durch die Fähigkeit auszeichnet, im Leckagefall oder unabhängig davon durch Quellen von einem oder mehreren quellfähigen, innerhalb der Dichtung befindlichen Materialsträngen selbständig die Dichtfunktion wieder herzustellen, und die Dichtfunktion gleichzeitig überwacht.The invention relates to a sealing system for socket pipes that is characterized by the ability to independently restore the sealing function in the event of a leak or independently of it by swelling of one or more swellable material strands located within the seal, and simultaneously monitors the sealing function.
Die Dichtung ist in der Regel ein kreisrunder, der Rohrform angepaßter Elastomerkörper als kombinierte Lippen oder Anpreß- dichtung mit den unterschiedlichsten geometrischen Formen. Die Dichtungen können sowohl in der Rohrmuffe als auch am Spitzende des Rohres fest montiert werden. Beim Zusammenfügen wird das eigentliche Dichtungsteil, der sogenannte Ringkragen gegen das einzuführende Bauteil gepreßt.The seal is usually a circular elastomer body adapted to the tube shape as a combined lip or pressure seal with a wide variety of geometric shapes. The seals can be firmly installed in the pipe socket as well as at the tip end of the pipe. When assembling, the actual sealing part, the so-called ring collar, is pressed against the component to be inserted.
Aus den GB 2273537, US 5172919 und PCT/EP98/07030 sind Dichtungssysteme bekannt, bei denen eine Kombination von konventionellen Dichtungen (Lippendichtung etc.) und quellfähigen Materialien vorliegt. Unter Einsatz von quellfähigen Polymeren wird der konventionell eingesetzten Dichtung eine quellfähige Dichtung nachgeschaltet bzw. die quellfähige Dichtung in die konventionelle Dichtung integriert. Erst bei Entstehung einer Leckage - sowohl von innen nach außen, als auch von außen nach innen - wird diese quellfähige Dichtung aktiviert und führt in kurzer Zeit zu einer dauerhaften Abdichtung des Systems. Die Aufqellung der Dichtung erfolgt dabei jedoch nur punktuell an der jeweils entstandenen Schadstelle und setzt sich nicht umlaufend innerhalb des quellfähigen Bereichs fort, wodurch eine inhomogene Volumenvergrößerung stattfindet, die in ungünstigen Fällen das Rohr- und Dichtungsmaterial mechanisch stark belastet. Die DE 19601652 AI sieht im Leckagefall die Möglichkeit der Aufweitung der Gleitringdichtung durch ein spezielles Ver- press aterial vor. Dieses Verpressrαaterial wird z.B. vom Rohrinnenraum in die Dichtung befördert und soll durch die Volu- menvergrößerung der Dichtung die Dichtfunktion wieder herstellen. Reicht die Volumenvergrößerung der Dichtung nicht aus, wird durch weitere Druckerhöhung und Öffnen von entsprechend preparierten Bereichen mittels aus der Dichtung austretendem Verpressmaterial die Dichtfunktion durch Umfließen des gesamten Muffenbereiches sichergestellt.Sealing systems are known from GB 2273537, US 5172919 and PCT / EP98 / 07030, in which a combination of conventional seals (lip seal etc.) and swellable materials is present. With the use of swellable polymers, the conventionally used seal is followed by a swellable seal or the swellable seal is integrated into the conventional seal. Only when a leak occurs - both from the inside out and from the outside in - is this swellable seal activated and leads to a permanent sealing of the system in a short time. However, the seal swells only selectively at the respective damaged area and does not continue all the way within the swellable area, which leads to an inhomogeneous increase in volume, which in unfavorable cases places a heavy mechanical load on the pipe and sealing material. In the event of a leak, DE 19601652 AI provides the option of expanding the mechanical seal by means of a special compression material. This compression material is conveyed from the pipe interior into the seal, for example, and is intended to restore the sealing function by increasing the volume of the seal. If the volume increase of the seal is not sufficient, the sealing function is ensured by flowing around the entire sleeve area by further increasing the pressure and opening correspondingly prepared areas by means of pressing material emerging from the seal.
Nachteilig bei diesem System ist die Gefahr des Eindringens des Verpressmaterials in mögliche in der Rohrwandung befindliche Kanäle oder in den Rohrinnenraum.A disadvantage of this system is the risk of the grouting material penetrating into possible channels in the pipe wall or into the pipe interior.
Die Nachteile der genannten Systeme sollen gemäß der Aufgabe der Erfindung durch ein quellfähiges Dichtsystem aus dem das Quellmaterial nicht austreten kann und das als Zusatzfunktion durch entsprechende Sensorik, die Dichtigkeit des System überwacht, überwunden werden.According to the object of the invention, the disadvantages of the systems mentioned are to be overcome by a swellable sealing system from which the source material cannot escape and which, as an additional function, is monitored by appropriate sensors that monitor the tightness of the system.
Erfindungsgemäß ist durch eine gewisse Porosität von Bereichen der Außendichtung sicherzustellen, dass das den Quellvorgang auslösende Medium an den quellfähigen Bereich gelangt und dort den Quellvorgang möglichst gleichmäßig im gesamten quellfähigen Bereich provoziert.According to the invention, a certain porosity of areas of the outer seal ensures that the medium that triggers the swelling process reaches the swellable area and provokes the swelling process as uniformly as possible in the entire swellable area.
Die Porosität kann durch das Dichtungsmaterial selber oder durch den Einbau von speziellen Zusatzmaterialien wie z. B. Fasern oder Hohlfasern erreicht werden. Um die Gleichmäßigkeit der Volumenvergrößerung des quellfähigen Bereiches abzusichern, können auch in den quellfähigen Bereichen den Quellvorgang auslösende Medien wie z. B. Feuchtigkeit verteilende Materialien, z. B. Fasern, eingebaut werden.The porosity can be achieved by the sealing material itself or by the installation of special additional materials such. B. fibers or hollow fibers can be achieved. In order to ensure the uniformity of the volume increase of the swellable area, media which trigger the swelling process can also be used in the swellable areas. B. moisture distributing materials, e.g. B. fibers are installed.
Die Ausbildung des Dichtungssystems kann auf zwei prinzipielle Funktionsprinzipien zurückgreifen. Die erste Ausführungsform besteht darin, dass der Quellvorgang in der Dichtung nur im Leckagefall provoziert wird. Die zweite Variante besteht darin, dass der Quellvorgang der Dichtung während oder nach der Herstellung der Rohrverbindung provoziert wird.The design of the sealing system can fall back on two basic functional principles. The first embodiment consists in that the swelling process in the seal is only provoked in the event of a leak. The second variant is that the swelling process of the seal is provoked during or after the pipe connection is made.
Neben der Nachdichtfunktion durch das Aufquellen der Dichtung ist die Überwachung der Quellfunktion durch intelligente Senso- rik als Zusatzfunktion möglich. Dabei können mindestens zwei sensorische Prinzipien eingesetzt werden. Die erste Variante besteht in einer Drucksensorik. Durch dieses Prinzip ist die Druckerhöhung innerhalb des Quellmaterials oder anderer Dich- tungselemente erfassbar. Das zweite Prinzip besteht in einer Feuchtesensorik. Sollte entsprechende Feuchtigkeit bis zu dem Quellmaterial vordringen, würde dieser Vorgang durch die Senso- rik erfasst werden.In addition to the post-sealing function due to the swelling of the seal, monitoring of the source function by means of intelligent sensors is possible as an additional function. At least two sensory principles can be used. The first variant consists of a pressure sensor system. This principle enables the pressure increase within the source material or other sealing elements to be detected. The second principle is a moisture sensor system. If appropriate moisture penetrates to the source material, this process would be detected by the sensors.
Neben dem direkten Einbau der Sensorik in die quellfähigen Bereiche kann durch die Hintereinanderschaltung von mindestens zwei quellfähigen Bereichen die Funktionsüberwachung des dem Quellmedium am nahesten liegenden quellfähigen Bereiches erfolgen. Eine weitere Ausgestaltung der Erfindung besteht darin, dass zwischen den quellfähigen Bereichen ein separater Prüfraum geschaffen und dieser sensorisch überwacht wird.In addition to the direct installation of the sensors in the swellable areas, the function monitoring of the swellable area closest to the source medium can be carried out by connecting at least two swellable areas in series. A further embodiment of the invention is that a separate test room is created between the swellable areas and this is monitored by sensors.
Durch eine entsprechende Staffelung des Quellvolumens der einzelnen hintereinander liegenden Stränge kann die Sicherheit der Funktionsübernahme der Dichtung weiter erhöht werden.By appropriately staggering the swelling volume of the individual strands one behind the other, the security of the function of the seal can be increased further.
Die Erfindung soll nachgehend anhand eines Ausführungsbeispieles unter Zuhilfenahme von Figuren näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment with the aid of figures.
Hierbei zeigen:Here show:
Fig. 1 eine prinzipielle Darstellung eines Muffenbereiches einer Rohrleitung mit Dichtung;Figure 1 is a schematic representation of a sleeve area of a pipe with a seal.
Fig. 2 eine erste Ausführungsform einer Dichtung mit integriertem Quellmaterial sowie einer Sensorik; Fig. 3 eine zweite Ausführungsform einer Dichtung mit integriertem Quellmaterial und Sensorik.2 shows a first embodiment of a seal with integrated swelling material and a sensor system; Fig. 3 shows a second embodiment of a seal with integrated source material and sensors.
In den Figuren ist mit dem Bezugszeichen 1, hier jeweils eine Dichtung oder ein Dichtmaterial, und mit dem Bezugszeichen 2 ein röhr- bzw. ein muffenseitiges Ende zu verbindender bzw. abzudichtender Rohre gezeigt.In the figures, the reference numeral 1, here in each case a seal or a sealing material, and the reference numeral 2 show a pipe-side or a socket-side end of pipes to be connected or to be sealed.
Figur 1 macht die übliche Anordnung von Dichtungen im Bereich der Stirnseiten sowie umfangsseitig im Muffenbereich bei einer Rohrverbindung deutlich.Figure 1 shows the usual arrangement of seals in the area of the end faces and on the circumferential side in the socket area for a pipe connection.
Gemäß der Ausführungsform des speziellen Dichtungssystems nach Figur 2 sind innerhalb der Dichtung 1 Quellmaterialien 4 eingebracht, die mit einem faserversetzten Dichtungsmaterial 3 in Kontakt mit der Dichtungsaußenseiten bzw. den Muffenbereich oder der Rohrwandung stehen. Im Falle einer Leckage z.B. durch Poröswerden der Dichtung in einem linksseitigen Bereich gemäß Figur 2 wird über das faserversetzte Dichtungsmaterial 3 das Quellmaterial 4 Zug um Zug zum Aufquellen veranlaßt mit der Folge einer Volumenvergrößerung und Wiederherstellung der Dichteigenschaften. Die gemäß den Figuren 2 und 3 im Quellmaterial 4 angeordnete Sensorik 5 kann den Quellvorgang auslösenden Stoff oder aber auch die Reaktion, nämlich die Volumenveränderung des Quellmaterials erfassen.According to the embodiment of the special sealing system according to FIG. 2, swelling materials 4 are introduced within the seal 1, which are in contact with the outside of the seal or the sleeve area or the pipe wall with a fiber-offset sealing material 3. In the event of a leak e.g. by becoming porous of the seal in a left-hand region according to FIG. 2, the swelling material 4 is caused to swell step by step via the fiber-offset sealing material 3, with the result that the volume is increased and the sealing properties are restored. The sensors 5 arranged in the source material 4 according to FIGS. 2 and 3 can detect the substance triggering the swelling process or else the reaction, namely the change in volume of the source material.
Es besteht alternativ die Möglichkeit in der Dichtung 1 außerhalb des Quellmaterials 4 die Sensorik 5 anzuordnen, um den Quellvorgang auslösenden Stoff oder die Reaktion des Quellmate- rials, z.B. durch Veränderung der Druckverhältnisse zu bestimmen.As an alternative, there is the possibility of arranging the sensor system 5 in the seal 1 outside the swelling material 4 in order to trigger the swelling process or the reaction of the swelling material, e.g. to determine by changing the pressure conditions.
Bei der Ausführungsform nach Figur 3 wird die Dichtfunktion erst während oder nach der Herstellung der Rohrverbindung pro- voziert, indem dem den Quellvorgang auslösenden Stoff entsprechender Zutritt zu den Bereichen gewährt wird, in welchem sich faserversetztes Dichtungsmaterial 3 befindet, das wiederum mit dem Quellmaterial 4 selbst in Verbindung steht. Auf diese Weise lassen sich Rohrverbindungen ohne das ansonsten erforderliche kraftintensive Einpressen erstellen und vorhandene Toleranzen ausgleichen. Mit erstmaligem Inkontaktkommen eines den Quellvorgang auslösenden Stoffes wird dann die Dichtfunktion hergestellt. In the embodiment according to FIG. 3, the sealing function is only provided during or after the production of the pipe connection, in that the substance that triggers the swelling process is granted corresponding access to the areas in which the fiber-offset sealing material 3 is located, which in turn contains the source material 4 itself is connected. In this way, pipe connections can be created without the otherwise required force-intensive pressing in and existing tolerances can be compensated. The sealing function is then produced when a substance triggering the swelling process comes into contact for the first time.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Dichtung1 seal
2 Rohrmaterial bzw. Rohr 3 faserversetztes Dichtungsmaterial2 pipe material or pipe 3 fiber-offset sealing material
4 Quellmaterial4 source material
5 Sensorik 5 sensors

Claims

Patentansprüche claims
1. Dichtungssystem für Muffenrohre mit mindestens einem in der Dichtung integrierten quellfähigen Bereich, welcher bei Ver- lust der Dichtfunktion durch Volumenvergrößerung diese Dichtfunktion wieder herstellt.1. Sealing system for socket pipes with at least one swellable area integrated in the seal, which restores this sealing function if the sealing function is lost by increasing the volume.
2. Dichtungssystem nach Anspruch 1, dadurch gekennzeichnet, dass das Quellmaterial in mindestens einem Strang in die Dichtung integriert ist.2. Sealing system according to claim 1, characterized in that the source material is integrated in at least one strand in the seal.
3. Dichtungssystem nach Anspruch 1, dadurch gekennzeichnet, dass das Quellmaterial in mindestens zwei Strängen mit unterschiedlichem Quellvolumen in die Dichtung integriert ist.3. Sealing system according to claim 1, characterized in that the source material is integrated into the seal in at least two strands with different source volume.
4. Dichtungssystem nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Quellmaterial durch einen porösen Bereich der Dichtung mit dem den Quellvorgang auslösenden Stoff in Kontakt kommt.4. Sealing system according to one of the preceding claims, characterized in that the swelling material comes into contact with the substance triggering the swelling process through a porous region of the seal.
5. Dichtungssystem nach Anspruch 4, dadurch gekennzeichnet, dass der poröse Bereich durch spezielle Fasern in dem Dichtungsmaterial erzeugt wird.5. Sealing system according to claim 4, characterized in that the porous region is generated by special fibers in the sealing material.
6. Dichtungssystem nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass in dem Quellmaterial ein zusätzliches Material zur Verteilung des den Quellvorgang auslösenden Stoff eingebracht ist.6. Sealing system according to one of the preceding claims, characterized in that an additional material for distributing the substance triggering the swelling process is introduced in the swelling material.
7. Dichtungssystem nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass in dem Quellmaterial eine Sensorik angeordnet ist, die den Quellvorgang auslösenden Stoff oder die Reaktion des Quellmaterials erfasst. ichtungssystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in der Dichtung außerhalb des Quellmaterials eine Sensorik eingebaut ist, die den Quellvorgang auslösenden Stoff oder die Reaktion des Quellmaterials erfasst. 7. Sealing system according to one of the preceding claims, characterized in that a sensor system is arranged in the source material, which detects the substance triggering the swelling process or the reaction of the source material. Sealing system according to one of claims 1 to 6, characterized in that a sensor is installed in the seal outside the source material, which detects the substance triggering the swelling process or the reaction of the source material.
PCT/EP2001/008977 2000-09-13 2001-08-02 Sealing system WO2002023070A1 (en)

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DE10045161 2000-09-13
DE10045161.6 2000-09-13

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770317A2 (en) * 2005-08-05 2007-04-04 DS Dichtungstechnik GmbH Elastomeric protection against roots and sealing arrangement protecting conduit joints from the intrusion of roots
WO2009088505A1 (en) 2008-01-07 2009-07-16 Odyssian Technology L.L.C. Seals with integrated leak progression detection capability
WO2010057606A3 (en) * 2008-11-19 2010-10-07 Sew-Eurodrive Gmbh & Co. Kg Sealing element having a passive activation element
WO2010092348A3 (en) * 2009-02-14 2010-11-04 Swellfix B.V. Connector seal
US8061211B1 (en) 2009-06-19 2011-11-22 Odyssian Technology, Llc Seal with integrated sensor
DE202012008796U1 (en) 2012-09-13 2012-10-17 David Grün Spigot and socket seal
EP2568206A1 (en) * 2011-09-07 2013-03-13 Geberit International AG Connection assembly
GB2524738A (en) * 2014-03-31 2015-10-07 Eaton Ind Ip Gmbh & Co Kg Sealing sleeve with leakage detection

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032199B3 (en) * 2010-07-26 2011-12-15 Gummi- und Kunststofftechnik Fürstenwalde GmbH Sealing ring for screwed connection of left and right sleeve pipes, has outer and inner rings and integrated element made of swellable materials and integrated into rubber parts, so that sealing function is formed due to increase in volume
DE202010010426U1 (en) 2010-07-26 2010-09-30 Gummi- und Kunststofftechnik Fürstenwalde GmbH Sealing ring for threaded sleeve connections
DE202013105306U1 (en) * 2013-11-22 2015-02-27 Rehau Ag + Co. connecting ring
DE202014106004U1 (en) * 2014-12-12 2016-03-17 Rehau Ag + Co sealing element
US11467056B2 (en) * 2019-11-01 2022-10-11 Saudi Arabian Oil Company Sensing leak in a multi-seal sealing assembly with sensors

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166593A5 (en) * 1971-12-30 1973-08-17 Pont A Mousson
DE3539595A1 (en) * 1985-11-08 1987-05-14 Hanseatische Isoliermittel Gmb Sealing rings having an insert of water-swellable plastic
GB2214994A (en) * 1988-02-16 1989-09-13 Charcon Tunnels Ltd Caulking materials
EP0410669A2 (en) * 1989-07-28 1991-01-30 C.I. Kasei Co., Ltd Water-swellable adhesive water stop
WO1991003674A1 (en) * 1989-08-30 1991-03-21 Uponor N.V. A seal ring for a sleeve joint
US5096206A (en) * 1990-06-01 1992-03-17 W. E. Hall Company Pipe joint sealer
US5663230A (en) * 1995-02-15 1997-09-02 Concrete Sealants, Inc. Water stop composition and methods of preparing same
DE19748631A1 (en) * 1997-11-04 1999-05-06 Fraunhofer Ges Forschung Safety seal for liquid systems using swellable polymers
DE19823328C1 (en) * 1998-05-26 1999-09-23 Albrecht Strobel Sewage system with separating line designed respectively between adjacent sewage pipes in which prim. seal is arranged

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268047A (en) * 1974-12-24 1981-05-19 Interpace Corporation Underground pipe joint with hydratable cement in polyurethane gasket
US4993722A (en) * 1988-12-07 1991-02-19 Npc, Inc. Apparatus and method for improved pipe to manhole sealing
US5090871A (en) * 1991-02-12 1992-02-25 Systems Chemistry, Inc. Junction assembly with leak detection means
DE4124338A1 (en) * 1991-07-23 1993-01-28 Weiss Anneliese Water-swellable sealing materials prodn. - by incorporating water-absorbent cpds. in polyurea matrix obtd. by reaction of hydrophilic isocyanate-prepolymer(s) with chain extenders
DE4236063A1 (en) * 1992-10-27 1994-04-28 Mueller Liewig Gmbh Water swellable sealing material for e.g. expansion joints - prepd. by copolymerising polyvalent metal salts of acrylic acids and ester(s) in presence of polymer latex
DE4405194C1 (en) * 1994-02-18 1995-03-09 Puspas Armaturen Gmbh Masonry-wall lead-through
DE19601652A1 (en) * 1996-01-18 1997-07-24 Sander Karl Heinz Gmbh & Co Kg Concrete, stoneware or cast iron pipe
DE19617437A1 (en) * 1996-05-02 1997-11-06 Hermann Muecher Gmbh Elastomeric ring seal for use e.g. in collar fitting floor hole
DE19945157C1 (en) * 1999-09-21 2001-07-12 Fraunhofer Ges Forschung Seals for pipe connections

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166593A5 (en) * 1971-12-30 1973-08-17 Pont A Mousson
DE3539595A1 (en) * 1985-11-08 1987-05-14 Hanseatische Isoliermittel Gmb Sealing rings having an insert of water-swellable plastic
GB2214994A (en) * 1988-02-16 1989-09-13 Charcon Tunnels Ltd Caulking materials
EP0410669A2 (en) * 1989-07-28 1991-01-30 C.I. Kasei Co., Ltd Water-swellable adhesive water stop
WO1991003674A1 (en) * 1989-08-30 1991-03-21 Uponor N.V. A seal ring for a sleeve joint
US5096206A (en) * 1990-06-01 1992-03-17 W. E. Hall Company Pipe joint sealer
US5663230A (en) * 1995-02-15 1997-09-02 Concrete Sealants, Inc. Water stop composition and methods of preparing same
DE19748631A1 (en) * 1997-11-04 1999-05-06 Fraunhofer Ges Forschung Safety seal for liquid systems using swellable polymers
DE19823328C1 (en) * 1998-05-26 1999-09-23 Albrecht Strobel Sewage system with separating line designed respectively between adjacent sewage pipes in which prim. seal is arranged

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770317A3 (en) * 2005-08-05 2007-06-06 DS Dichtungstechnik GmbH Elastomeric protection against roots and sealing arrangement protecting conduit joints from the intrusion of roots
EP1770317A2 (en) * 2005-08-05 2007-04-04 DS Dichtungstechnik GmbH Elastomeric protection against roots and sealing arrangement protecting conduit joints from the intrusion of roots
WO2009088505A1 (en) 2008-01-07 2009-07-16 Odyssian Technology L.L.C. Seals with integrated leak progression detection capability
CN103994229A (en) * 2008-11-19 2014-08-20 索尤若驱动有限及两合公司 Sealing element with passive activation element
WO2010057606A3 (en) * 2008-11-19 2010-10-07 Sew-Eurodrive Gmbh & Co. Kg Sealing element having a passive activation element
CN102216657A (en) * 2008-11-19 2011-10-12 索尤若驱动有限及两合公司 Sealing element
CN103994229B (en) * 2008-11-19 2016-03-30 索尤若驱动有限及两合公司 There is the sealed member of passive activating part
WO2010092348A3 (en) * 2009-02-14 2010-11-04 Swellfix B.V. Connector seal
CN102317661A (en) * 2009-02-14 2012-01-11 斯维尔非克斯有限公司 Connector seal
US8061211B1 (en) 2009-06-19 2011-11-22 Odyssian Technology, Llc Seal with integrated sensor
EP2568206A1 (en) * 2011-09-07 2013-03-13 Geberit International AG Connection assembly
DE202012008796U1 (en) 2012-09-13 2012-10-17 David Grün Spigot and socket seal
GB2524738A (en) * 2014-03-31 2015-10-07 Eaton Ind Ip Gmbh & Co Kg Sealing sleeve with leakage detection
US10655764B2 (en) 2014-03-31 2020-05-19 Eaton Intelligent Power Limited Sealing sleeve with leakage detection

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