WO1999023401A1 - Garniture d'etancheite pour empecher la fuite ou la penetration de liquide hors de ou dans des systemes, et son utilisation - Google Patents

Garniture d'etancheite pour empecher la fuite ou la penetration de liquide hors de ou dans des systemes, et son utilisation Download PDF

Info

Publication number
WO1999023401A1
WO1999023401A1 PCT/EP1998/007030 EP9807030W WO9923401A1 WO 1999023401 A1 WO1999023401 A1 WO 1999023401A1 EP 9807030 W EP9807030 W EP 9807030W WO 9923401 A1 WO9923401 A1 WO 9923401A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
polymer
seal according
systems
sealing
Prior art date
Application number
PCT/EP1998/007030
Other languages
German (de)
English (en)
Inventor
Holger Wack
Hans-Jürgen GROSS
Wilhelm Althaus
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to AU15600/99A priority Critical patent/AU1560099A/en
Publication of WO1999023401A1 publication Critical patent/WO1999023401A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • 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
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers

Definitions

  • plastic films have been used for the closure or sealing of landfills, the mechanical strength of which is known to be limited. There is therefore a risk that such a film is mechanically torn open and contaminated liquids can escape from the landfill into the soil below. Damage to such a film that has been used to seal a landfill can lead to the undesired occurrence of e.g. Rainwater comes, so that the chemical activity in the closed landfill is increased accordingly, and the gas formation is increased due to the additionally supplied water.
  • a non-biodegradable polymer which is swellable by absorbing liquid is used, which is accommodated in a space formed in the systems to be separated from one another.
  • a polymer can be produced from at least one monomer of an acrylamide, an acrylate or their derivatives. It is expedient to use such a monomer as the base monomer in conjunction with a suitable crosslinking monomer.
  • the properties of such a polymer can additionally be influenced in a targeted manner by using a further comonomer.
  • Such polymers can be manufactured using conventional manufacturing methods such as e.g. by A. Echte in the "Handbook of Technical Polymer Chemistry”; VCH-Verlaggesellschaft mbH; Weinheim; 1993 have been obtained. Possible examples of components which lead to the obtaining of such polymers are also mentioned in Table 1.
  • the biological non-degradability enables use for a wide variety of liquids, such as Wastewater is in which biologically active components are contained as well as an underground use in pipes and landfills.
  • the seal according to the invention can also be used in 4 redundant shape can be used in conjunction with conventional seals as an additional inherent safety seal.
  • Enclosing polymer in an elastically stretchable, porous material and thus providing a structure which is relatively dimensionally stable for assembly e.g. can be provided as a ring for sealing pipes.
  • the fixation on the pipes can e.g. can be achieved with fixing rings or with elevations or depressions on the pipes.
  • it can also be wound one or more times around a tube in the form of a winding element, it being possible to use a tube containing polymer or a fabric, knitted fabric or fleece applied with the polymer.
  • the polymers can be used in powder form, e.g. can be installed and installed in a biodegradable hose (e.g. paper hose). After the hose material has been dissolved or destroyed, e.g. through the installation process, the polymer powder is then available for sealing.
  • a biodegradable hose e.g. paper hose
  • a liquid-soluble material such as e.g. is the case with materials containing starch or starch.
  • Another possibility is to apply the polymer to fibers, so that a woven fabric, knitted fabric or nonwoven fabric with a corresponding polymer can be used as a seal.
  • the swelling pressure that occurs when the polymer swells does not impair the materials, 5 ensures a permanent seal.
  • Figure 1 shows an example of a seal according to the invention in a pipe sleeve for connecting two pipes
  • FIG. 2 shows schematically the effect of a seal according to the invention in a pipe socket according to FIG. 1, in the case of an embrittled conventional seal;
  • FIG. 3 shows an example of a safety seal integrated in a primary seal
  • FIG. 4 shows an example of a conventional seal with an integrated safety seal formed from two chambers
  • Figure 5 is a landfill seal with a conventional landfill film made of plastic
  • FIG. 6 shows a landfill film modified according to the invention.
  • a conventional seal 2 here a rubber ring with a circular cross-section in connection with an additional seal according to the invention
  • the one 6 contains swellable polymer used.
  • the non-biodegradable and swellable polymer 1 by liquid absorption is enclosed here by an expandable, porous material, so that the seal 1 also represents a ring which is arranged in a space 3 of the pipe sleeve and fixed there.
  • the lower left illustration shows the normal case, i.e. the entire sealing function is maintained with the conventional rubber seal 2.
  • the sealing function of the conventional seal 2 is reduced due to material aging and embrittlement and how liquid reaches the polymer 1 through the porous material encapsulating the polymer 1 and begins to swell, the entire space 3 ultimately is filled with the swollen polymer 1 and the sealing function is now performed almost exclusively by the seal 1 according to the invention.
  • FIG. 1 The example of a seal according to the invention shown in FIG. 1 can be modified in a simple form, as shown in FIG. 2. It is thus possible, if necessary, to dispense with the conventional seal 2 and to provide an opening 15 through which polymer which is not biodegradable from the outside and which swells by absorbing liquid can be introduced into the space 3. If the space 3 is completely filled with the polymer, the opening 15 can be closed. Now gets liquid 7 through the gap to the polymer, this swells and seals the gap.
  • FIG. 2 In the left-hand illustration of FIG. 2 it can be seen how two pipes are inserted into one another and in the process a gap-shaped space 3 is formed between the two pipes, which can be temporarily closed on the outside in the gap area with an assembly aid 17.
  • the space 3 can be filled with a polymer or with components that reactively form a corresponding polymer.
  • the filling can be done with a pressure generating unit, e.g. a suitable pump, it then being expedient to provide a ventilation opening 16 through which the air can escape, so that complete filling, as shown in the middle illustration, can be achieved.
  • the assembly aid 17 can be removed, as can be seen in the illustration on the right in FIG. 2.
  • both the filling opening 15 and the vent opening 16 can be closed.
  • a seal designed in this way can advantageously be used for sealing sewage pipes.
  • a corresponding taper is formed in at least one of two tubes to be connected, into or over which the other tube with a larger or smaller inside diameter is pushed. Then, as already mentioned, the space formed by the taper can be filled with the polymer from the outside.
  • Such an embodiment is particularly useful when using concrete pipes because the required 8 Chen manufacturing tolerances for a secure seal are much smaller than is the case with other seals or sealing systems.
  • FIG. 3 shows a modified example of a seal according to the invention, the seal 1 according to the invention being integrated in a primary seal 4.
  • the polymer is contained in a cavity of the primary seal 4 and this cavity is temporarily closed with a predetermined breaking point 5. If the seal is installed, e.g. installed in a pipe socket, the predetermined breaking point 5 is broken open, as illustrated in the lower left illustration.
  • liquid 6 can reach the polymer through the resulting gap between the primary lip seal 4 and the outer wall of the pipe 7, whereupon the liquid absorption by the polymer leads to its swelling, so that the gap between the lip seal 4 and the pipe 7 closed by the swollen polymer and the escape of the liquid is prevented.
  • FIG. 4 shows a lip seal 4 in which two different chambers A and B are formed, each of which contains a component with which a polymer which is swellable under the influence of liquids can be formed.
  • a predetermined breaking point 5 is present in the partition wall which separates the two chambers A and B from one another. Further predetermined breaking points 5 are formed in the area of the chambers A and B on the actual sealing surface of the lip seal 4. The predetermined breaking points 5 are broken up again during the assembly of the seal 4, whereby it the two components react and the desired polymer is formed. The sealing effect then takes place in the same form as has already been described in the example according to FIG. 3.
  • a seal 4, as shown in FIG. 4 has the advantage that liquid absorption and swelling of the polymer is only possible in the assembled state of such a seal 4 and impairments during transport or storage can be avoided.
  • FIG. 5 schematically shows a sectional view through a landfill 9, which is closed off from the ground 10, 10 'with a conventional landfill film 8 made of a known plastic.
  • the landfill film 8 is to be replaced by a seal modified according to the invention.
  • a seal formed from an upper cover film 11 and a lower film 11 ' is used, a suitable and non-biodegradable polymer which is swellable by liquid absorption being accommodated between the two films 11 and 11'.
  • the films 11 and 11 ' are tightly closed to one another at least at their outer edges, so that the polymer 1 cannot escape.
  • the foils 11 and 11 ' are advantageously connected to support foils 12, so that individual reservoirs 13 for the polymer 1 are formed.
  • the film material can also be reinforced with suitable fibers.
  • Ethylene glycol dimethacrylate Ethylene glycol monomethacrylate
  • CM sodium 2- (2-carboxylbenzoyloxy) ethyl methacrylate sodium acrylate sodium allyl acetate sodium methacrylate sodium styrene sulfonate 12
  • BM N- (2-ethoxyethyl) acrylamide)
  • BM N-3- (methoxypropy1) acrylamide
  • B N- (3-ethoxypropy1) acrylamide
  • BM N-cyclopropylacrylamide
  • BM Nn-propylacrylamide
  • BM N- (tetrahydrofurfuryl) acrylamide
  • BM N-isopropylacrylamide
  • CM 2- (diethylamino) ethyl methacrylate 2- (dimethylamino) ethyl methacrylate 2-acrylamido-2-methyl-l-propanesulfonacrylate acrylic acid acrylamide
  • Methyacrylamidopropyltrimethylammonium chloride n-butyl methacrylate poly (tetrafluoroethylene)
  • CM Methyacrylamidopropyltrimethyl ammonium chloride N-acryloxysuccinimide ester N-tert-butylacrylamide sodium methacrylate
  • CM 2-acrylamido-2-methylpropanesulfonic acid, acrylamide triallylamine
  • BM methyl methacrylate
  • CM divinylbenzene
  • N, N-dimethylaminoethyl methacrylate poly (oxytetramethylene dimethacrylate)
  • BM poly (bis ((a inoethoxy) ethoxy) phosphazene)
  • BM poly (bis ((methoxyethoxy) ethoxy) phosphazene)
  • BM poly (bis ((methoxyethoxy) ethoxy) phosphazene)
  • BM polyethylene oxide
  • BM poly (ethylene-di ethylsiloxane-ethylene oxide)
  • BM poly- (n, n-dimethyl-N- ((methacryloyloxy) -ethyl) - N- (3-sulfopropyl) ammonium betaine)
  • BM polyvinyl alcohol vinyl acetate
  • BM polyvinyl methyl ether
  • CM Maleimide modified poly (n-acetylethylenimine)
  • the polymer (1) is formed from at least one monomer of an acrylamide, an acrylate or their derivatives.
  • seal according to claim 1 or 2 characterized in that the polymer (l) is encapsulated in an expandable, liquid-permeable material.

Abstract

L'invention concerne une garniture d'étanchéité destinée à empêcher la fuite ou la pénétration de liquides hors de ou dans des systèmes, ainsi que son utilisation. L'invention vise à créer une garniture d'étanchéité empêchant, avec une grande sécurité et sur une longue durée, que des liquides puissent fuir d'un système ou bien y pénétrer. A cet effet, un polymère non biodégradable susceptible de gonflement par l'absorption de liquide, ou bien au moins deux constituants formant par réaction un tel polymère sont logés dans un espace séparant les deux systèmes l'un de l'autre. La présente invention peut être utilisée avantageusement pour l'étanchéification de conduites ou bien pour l'étanchéification ou la vitrification de décharges de déchets.
PCT/EP1998/007030 1997-11-04 1998-11-04 Garniture d'etancheite pour empecher la fuite ou la penetration de liquide hors de ou dans des systemes, et son utilisation WO1999023401A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15600/99A AU1560099A (en) 1997-11-04 1998-11-04 Seal in order to prevent the exit or entry of liquids out of or into systems andthe application thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748631.2 1997-11-04
DE1997148631 DE19748631A1 (de) 1997-11-04 1997-11-04 Sicherheitsabdichtung für flüssige Systeme unter Einsatz von quellfähigen Polymeren

Publications (1)

Publication Number Publication Date
WO1999023401A1 true WO1999023401A1 (fr) 1999-05-14

Family

ID=7847544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/007030 WO1999023401A1 (fr) 1997-11-04 1998-11-04 Garniture d'etancheite pour empecher la fuite ou la penetration de liquide hors de ou dans des systemes, et son utilisation

Country Status (3)

Country Link
AU (1) AU1560099A (fr)
DE (1) DE19748631A1 (fr)
WO (1) WO1999023401A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837575A1 (fr) 2006-03-20 2007-09-26 R. Nussbaum AG Raccord pour des tuyaux avec un joint d'étanchéité gonflable
US7578354B2 (en) 2001-01-26 2009-08-25 E2Tech Limited Device and method to seal boreholes
US8309669B2 (en) 2007-07-10 2012-11-13 Evonik Röhm Gmbh Use of swellable polymer for sealing

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955839C1 (de) 1999-11-19 2001-03-01 Hilti Ag Verwendung von quellbare Füllstoffe enthaltenden Kunststoffschäumen zur Abdichtung von Mauerdurchführungen
DE19955762C1 (de) * 1999-11-19 2001-02-01 Hilti Ag Hülsenförmiges Abdichtelement zum Abdichten des Ringspalts zwischen einem zylindrischen Gegenstand und einer in einem Bauelement vorhandenen zylindrischen Druchführung
DE10020493A1 (de) * 2000-04-26 2001-11-08 Dsi Rohrleitungsbau Zubehoer Vorrichtung zum Abdichten eines von einem inneren und einem äußeren Körper begrenzten Ringraumes
WO2002023070A1 (fr) * 2000-09-13 2002-03-21 Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. Systeme de joint
DE102004048154A1 (de) * 2004-10-02 2006-04-13 Hauff-Technik Gmbh & Co Kg Vorrichtung zum flüssigkeits- oder gasdichten gegenseitigen Abgrenzen zweier Räume
DE102006044226A1 (de) * 2006-09-15 2008-03-27 Hildener Filz Produktion Gmbh & Co. Kg Abdichtungsbahn
EP2151611A1 (fr) * 2008-08-04 2010-02-10 Carl Freudenberg KG Bague d'étanchéité radiale dotée d'une lèvre d'étanchéité d'urgence
EP2151610A1 (fr) * 2008-08-04 2010-02-10 Carl Freudenberg KG Bague d'étanchéité radiale dotée d'une lèvre d'impuretés susceptible de gonflement
DE102008058087B4 (de) * 2008-11-19 2022-04-28 Sew-Eurodrive Gmbh & Co Kg Dichtungsanordnung
DE102017101307A1 (de) 2017-01-24 2018-07-26 B. Braun Avitum Ag Dialysator mit verbesserter interner Filtration und Verfahren zu dessen Herstellung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1569442A (fr) * 1967-07-12 1969-05-30
US5172919A (en) * 1990-02-22 1992-12-22 C. I. Kasei Co., Ltd. Appliance for preventing water from leaking through joint
GB2273537A (en) * 1992-12-17 1994-06-22 Yong Goo Shin Sealing ring for spigot and socket pipe joints

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1569442A (fr) * 1967-07-12 1969-05-30
US5172919A (en) * 1990-02-22 1992-12-22 C. I. Kasei Co., Ltd. Appliance for preventing water from leaking through joint
GB2273537A (en) * 1992-12-17 1994-06-22 Yong Goo Shin Sealing ring for spigot and socket pipe joints

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A. ECHTE.: ""HANDBUCH DER TECHNISCHEN POLYMERCHEMIE"", 1993, VCH-VERLAGSGESELLSCHAFT MBH; WEINHEIM.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7578354B2 (en) 2001-01-26 2009-08-25 E2Tech Limited Device and method to seal boreholes
EP1837575A1 (fr) 2006-03-20 2007-09-26 R. Nussbaum AG Raccord pour des tuyaux avec un joint d'étanchéité gonflable
US8309669B2 (en) 2007-07-10 2012-11-13 Evonik Röhm Gmbh Use of swellable polymer for sealing

Also Published As

Publication number Publication date
DE19748631A1 (de) 1999-05-06
AU1560099A (en) 1999-05-24

Similar Documents

Publication Publication Date Title
WO1999023401A1 (fr) Garniture d'etancheite pour empecher la fuite ou la penetration de liquide hors de ou dans des systemes, et son utilisation
DE2835644C2 (fr)
DE3023681A1 (de) Hohlfiber-diffusionsgeraet und verfahren zur endabdichtung eines hohlfiber- dialysegeraets
EP0536475A1 (fr) Tapis d'étanchéité utilisable en génie civil pour la protection du sol contre des liquides
DE19955766A1 (de) Verfahren und Vorrichtung zur Spaltabdichtung
DE3430789A1 (de) Verfahren zum einbringen und verbinden von membranen in schlitzwaenden und vorrichtung zur durchfuehrung des verfahrens
DE19955765C1 (de) Verfahren zum Abdichten des Spalts zwischen einer in einem Bauelement vorhandenen Durchführung und einem die Durchführung durchragenden Gegenstand sowie Abdichteinrichtung
DE60201292T2 (de) Hydraulische Abdichtung
DE102017110057A1 (de) Fugenschnur
DE4422648C2 (de) Sollriß-Fugenschiene
DE2055638C3 (de) Verfahren und Vorrichtung zum Verschließen einer elektrochemischen Zelle und nach dem Verfahren hergestellte elektrochemische Zelle
DE3742960A1 (de) Entwaesserungsplatte
DE2737873A1 (de) Verfahren und anordnung zum schutz erdverlegter elektrischer einrichtungen
EP0684343A1 (fr) Procédé pour la fabrication de parois étanches
EP0437670B1 (fr) Elément d'étanchéité utilisables dans la construction
DE10057120A1 (de) Überschwemmungsschutzsystem
EP0235353B1 (fr) Protection de rupture pour parafouille
DE102005037890B4 (de) Vorrichtung zum Aufbewahren und Anwenden eines flüssigen Dentalmaterials
DE19945157C1 (de) Dichtungen für Rohrverbindungen
DE19945151C1 (de) Dichtung für Rohrverbindungen
DE2814520C3 (de) Dialysator
DE102013216043A1 (de) Transportvorrichtung für Flüssigkeiten und/oder Gase
DE2128316A1 (de) Poröser Körper mit Randversteifung sowie Verfahren und Vorrichtung zu deren Herstellung
DE3035060C2 (de) Verfahren zur Herstellung einer temporär wasserdichten Baugrubenumschließung sowie Vorrichtung zum Durchführen des Verfahrens
LU102957B1 (de) Formteil zur Bauwerksabdichtung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA CN CZ HU JP MX PL US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA