DE10215059A1 - Pipe for transport of aggressive liquids comprises joint surfaces which are coated with a chemically resistant material from the pipe liner to the zone of an elastic sealing element - Google Patents
Pipe for transport of aggressive liquids comprises joint surfaces which are coated with a chemically resistant material from the pipe liner to the zone of an elastic sealing elementInfo
- Publication number
- DE10215059A1 DE10215059A1 DE2002115059 DE10215059A DE10215059A1 DE 10215059 A1 DE10215059 A1 DE 10215059A1 DE 2002115059 DE2002115059 DE 2002115059 DE 10215059 A DE10215059 A DE 10215059A DE 10215059 A1 DE10215059 A1 DE 10215059A1
- Authority
- DE
- Germany
- Prior art keywords
- polymer
- pipe
- joint surface
- concrete
- chemical
- 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- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 title claims abstract description 8
- 239000003251 chemically resistant material Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims description 33
- 239000004567 concrete Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 15
- 239000002986 polymer concrete Substances 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 239000013013 elastic material Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000003960 organic solvent Substances 0.000 claims 1
- 239000003566 sealing material Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 description 7
- 150000007513 acids Chemical class 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/0027—Joints for pipes made of reinforced concrete
-
- 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
- F16L21/035—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 around the spigot end 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
Die Erfindung betrifft Rohre für den Transport aggressiver Flüssigkeiten. The invention relates to pipes for the transport of aggressive liquids.
Aus der DE 37 13 207 C2 sind für den Transport aggressiver Flüssigkeiten Rohre bekannt, deren innen mit einer chemikalienbeständigen Auskleidung (Inliner) versehener Schaft aus Zementbeton und dessen Endteile zumindest in den Bereichen der Fugenflächen aus einem chemikalienbeständigen Beton mit organischem Bindemittel (Polymerbeton) bestehen. Diese Rohre sind speziell für den Transport von Säuren gedacht. From DE 37 13 207 C2 are for the transport of aggressive liquids Pipes are known whose inside with a chemical resistant lining (Inliner) provided cement concrete shaft and its end parts at least in the areas of joint surfaces made of a chemical resistant concrete consist with organic binder (polymer concrete). These pipes are specially designed for the transport of acids.
Polymerbeton hat jedoch den Nachteil, daß nur das bindende Polymer wirklich säurebeständig ist. Vor allem kalkhaltige Zuschlagstoffe beziehungsweise kalkhaltige Verunreinigungen in Zuschlagstoffen werden jedoch von der Säure angegriffen, so daß ein, wenn auch langsamer, Angriff der Endteile des Rohres stattfindet. Wegen der Berührungsflächen der Körner der Zuschlagstoffe untereinander (Perkolation) kann die Säure allein schon aufgrund von Kapillarkräften über Mikrorisse zwischen Zuschlagstoffen und Polymer in Bereiche weit hinter der Oberfläche vordringen. However, polymer concrete has the disadvantage that only the binding polymer really acid resistant. Especially calcareous aggregates or However, lime-containing impurities in aggregates are caused by the acid attacked, so that, albeit slower, attack the end parts of the Pipe takes place. Because of the contact surfaces of the grains of aggregates with each other (percolation), the acid alone may be due to Capillary forces over microcracks between aggregates and polymer in areas far beyond the surface.
Weiterhin dringt auch Säure durch den feinen Spalt zwischen Inliner und Polymerbeton bis zum gewöhnlichen Zementbeton vor und führt dort mit der Zeit zu Zerstörungen. Furthermore, acid also penetrates through the fine gap between inliner and Polymer concrete to ordinary cement concrete and leads there over time to destruction.
Aufgabe der Erfindung ist es, ein Rohr anzugeben, welches gegen aggressive Flüssigkeiten, speziell Säuren, längerfristig stabil ist und zudem in der Lage ist, auch Flüssigkeiten sehr hoher Aggressivität (zum Beispiel sehr starke Säuren) zu transportieren. Aufgabe ist auch ein Verfahren zur Herstellung. The object of the invention is to provide a pipe which is resistant to aggressive Liquids, especially acids, is stable in the longer term and also able to is, even liquids very high aggressiveness (for example, very strong Acids). Task is also a method of manufacture.
Die Erfindung wird durch die im Kennzeichen der Ansprüche 1, 8 und 14 angegebenen Merkmale gelöst. The invention is characterized by that in the characterizing part of claims 1, 8 and 14 specified characteristics solved.
Hierzu besteht ein Rohr zumindest in den Bereichen, an denen die Fugenflächen gebildet sind, aus einem homogenen, gegenüber der aggressiven Substanz unempfindlichen linearen oder verzweigten organischen Polymer (z. B. PE, PP, PU) oder einem Polymer mit anorganischer Hauptkette aber organischen Seitengruppen (zum Beispiel einem Polysiloxan). For this purpose, there is a pipe at least in the areas where the Joint surfaces are formed, from a homogeneous, to the aggressive Substance insensitive linear or branched organic polymer (eg. PE, PP, PU) or a polymer having an inorganic backbone, however organic side groups (for example, a polysiloxane).
In einer der möglichen Ausführungen der Erfindung besteht das Endteil des Rohres aus Polymerbeton (ähnlich dem in der DE 37 13 207 C2 beschriebenen Rohr) und die Fugenflächen aus homogenem Polymer. In einer anderen möglichen Ausführung besteht das Endteil des Rohres aus dem gleichen Material wie der Schaft des Rohres und die Fugenflächen sind aus homogenem Polymer gebildet. In one of the possible embodiments of the invention, the end part of the Polymer concrete pipe (similar to that in DE 37 13 207 C2 described tube) and the joint surfaces of homogeneous polymer. In another possible embodiment, the end part of the tube consists of the same Material such as the shaft of the pipe and the joint surfaces are made of homogeneous Polymer formed.
Die Dicke der Polymerschicht der Fugenflächen sollte bevorzugt einen Wert von etwa einem Millimeter nicht unterschreiten, um gegen Kratzer und andere für den Bau typische Verletzungen unempfindlich zu sein und eine sichere Diffusionssperre auch gegen kleine Ionen wie das Wasserstoffion H+ darzustellen. The thickness of the polymer layer of the joint surfaces should preferably not fall below a value of about one millimeter in order to be insensitive to scratches and other injuries typical of the construction and to provide a secure diffusion barrier even against small ions such as the hydrogen ion H + .
Als Polymer für die Fugenfläche eignet sich bevorzugt das gleiche Material, aus dem der Inliner besteht, denn dann läßt sich ein fester und spaltfreier Verbund zwischen dem Polymer der Fugenfläche und dem Inliner erzielen. Oder man wählt das Polymer des im Endteil eventuell verwendeten Polymerbetons als Beschichtungsmaterial. The polymer used for the joint surface is preferably the same material, from which the inliner consists, because then can be a solid and gap-free Achieve bond between the polymer of the joint surface and the inliner. Or you can choose the polymer of the final part possibly used Polymer concrete as a coating material.
Bevorzugt sind auch Polymere, die sich in gelöstem oder geschmolzenem Zustand oder in noch weicher, nicht durchpolymerisierter Form nachträglich auf erhärteten Beton oder Polymerbeton auftragen lassen. Also preferred are polymers which are dissolved or molten Condition or in even softer, not durchpolymerisierter form subsequently on apply hardened concrete or polymer concrete.
Ebenfalls bevorzugt sind Polymere, aus denen sich im Spritzgußverfahren Kunststoffertigteile herstellen lassen, die später mindestens die Fugenflächen bilden, sich aber auch über das Rohrende bis auf die Rohraußenseite oder Rohrinnenseite erstrecken können. Also preferred are polymers which are made by injection molding Make plastic finished parts, which later at least the joint surfaces form, but also on the pipe end to the outside of the pipe or Can extend inside pipe.
Solche Kunststoffertigteile können vor dem Betonieren des Rohres in die Schalung eingelegt und anschließend, wie der Inliner auch, mit einbetoniert werden. (In diesem Falle tragen sie bevorzugt an ihrer betonzugewandten Seite, ähnlich dem Inliner, Fortsätze für eine festere Einbindung in den Beton.) Sie können aber auch erst nachträglich in bzw. auf ein bereits erhärtetes Rohr ein- bzw. aufgeschoben und z. B. durch Kleben fixiert werden. Vorteilhaft ist es bei dieser Ausführung, das Kunststoffertigteil mit Spiel herzustellen, so daß es immer trotz Fertigungstoleranzen des Rohres auf das Rohr paßt. Festen Halt erhält das Kunststoffertigteil durch Kleber, welcher das Spiel zwischen Fertigteil und Betonrohr ausfüllt. Such plastic finished parts can before concreting the pipe in the Formwork inserted and then, as the inliner too, with concrete become. (In this case, they prefer to wear on their concrete facing Side, similar to the inliner, extensions for a firmer integration into the concrete.) But you can also only later in or on an already hardened tube on or postponed and z. B. be fixed by gluing. Is advantageous it in this embodiment to produce the plastic part with game, so that it always fits on the pipe despite manufacturing tolerances of the pipe. Firm Holds the plastic part by adhesive, which is the game between Prefilled part and concrete pipe fills.
Der Übergang vom Inliner zum Kunststoffertigteil kann durch Schweißen oder Kleben abgedichtet werden. The transition from inliner to plastic part can be done by welding or Bonding to be sealed.
Im Falle des Auftragens des Polymers in gelöster oder geschmolzener Form oder im Falle eines Aufklebens wird die zu beschichtende Fläche vor dem Auftragen vorbereitet, z. B. durch Sandstrahlen, Schleifen oder Behandlung mit einem Lösungsmittel. In the case of applying the polymer in dissolved or molten form or in the case of sticking, the area to be coated is before the Application prepared, z. B. by sandblasting, grinding or treatment with a solvent.
Bei Herstellung oder Klebung der Fugenfläche aus chemikalienbeständigem organischem Polymer auf einem Endteil aus Polymerbeton besteht gegenüber der Herstellung oder Klebung der Fugenfläche auf einem Endteil aus Zementbeton der Vorteil, daß der Verbund zwischen Polymerbeton und organischem Polymer bzw. Polymerbeton/Kleber/Polymer deutlich stärker ist als zwischen anorganischem Zementbeton und einem organischen Polymer bzw. Zementbeton/Kleber/Polymer. When manufacturing or bonding the joint surface made of chemical resistant material organic polymer on an end portion of polymer concrete is opposite the production or adhesion of the joint surface on an end part Cement concrete has the advantage that the bond between polymer concrete and organic Polymer or polymer concrete / adhesive / polymer is significantly stronger than between inorganic cement concrete and an organic polymer or Cement concrete / adhesive / polymer.
Auch am Übergang zwischen dem Inliner des Schaftes und einem aufgetragenen, angeklebten oder angeschweißten Polymer der Fugenfläche findet ein guter Verbund statt, so daß kein Spalt vorhanden ist, durch den aggressive Flüssigkeit an empfindliche Teile des Rohres gelangen kann. In einer besonderen Ausführungsform überlappt das Polymer des Endteils den Inliner sogar etwas. Also at the transition between the inliner of the shaft and a applied, glued or welded polymer of the joint surface finds good bond instead, so that no gap is present, by the aggressive Liquid can get to sensitive parts of the pipe. In a particular embodiment, the polymer of the end part even overlaps the inliner something.
Die Figuren zeigen schematisch die Erfindung am Beispiel von Muffenrohren, deren Endteile aus Polymerbeton mit Fugenflächen aus homogenem Polymer bestehen. Andere Rohrarten sind aber ebenfalls möglich. The figures show schematically the invention using the example of socket pipes, their end parts made of polymer concrete with joint surfaces made of homogeneous polymer consist. Other types of pipe are also possible.
Die Fig. 1 zeigt erfindungsgemäße aneinandergesetzte Muffenrohre. Fig. 1 shows juxtaposed sleeve pipes.
Fig. 2 zeigt schematisch einen vergrößerten Ausschnitt an der Muffe. Polymer
der Fugenfläche und Inliner überlappen in dieser Ausführungsvariante etwas.
Legende
1 Muffenende des Rohres
2 Spitzende des Rohres
3 Dichtungsring
4 Polymerbeton
5 Zementbeton
6 Polymer der Fugenfläche
7 Bewehrung
8 Inliner
Fig. 2 shows schematically an enlarged detail of the sleeve. Polymer of the joint surface and inliner overlap something in this embodiment. Legend 1 socket end of the pipe
2 spigots of the pipe
3 sealing ring
4 polymer concrete
5 cement concrete
6 Polymer of the joint surface
7 reinforcement
8 inliners
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002115059 DE10215059A1 (en) | 2002-04-05 | 2002-04-05 | Pipe for transport of aggressive liquids comprises joint surfaces which are coated with a chemically resistant material from the pipe liner to the zone of an elastic sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002115059 DE10215059A1 (en) | 2002-04-05 | 2002-04-05 | Pipe for transport of aggressive liquids comprises joint surfaces which are coated with a chemically resistant material from the pipe liner to the zone of an elastic sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10215059A1 true DE10215059A1 (en) | 2003-02-13 |
Family
ID=7714295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002115059 Withdrawn DE10215059A1 (en) | 2002-04-05 | 2002-04-05 | Pipe for transport of aggressive liquids comprises joint surfaces which are coated with a chemically resistant material from the pipe liner to the zone of an elastic sealing element |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10215059A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004003139U1 (en) * | 2004-03-01 | 2005-07-28 | Gebr. Fasel Betonwerk Gmbh | Concrete pipe with corrosion-resistant inner lining |
| DE202007005696U1 (en) * | 2007-04-18 | 2008-08-21 | Dw Betonrohre Gmbh | Tubular component for the production of lines, shafts, fittings and the like. |
| WO2015175368A1 (en) * | 2014-05-12 | 2015-11-19 | Hawkeye Concrete Products Co. | Reinforced concrete pipe |
| DE102016103278A1 (en) * | 2016-02-24 | 2017-08-24 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Device for guiding fluid and manufacturing process |
| US20200370685A1 (en) * | 2018-02-05 | 2020-11-26 | Ulrich Schlüsselbauer | Plug connection between two tubular workpieces made of concrete, each workpiece having an inner liner made of plastic |
| EP3832040A1 (en) * | 2019-12-06 | 2021-06-09 | Predl GmbH | Prefabricated part with a concrete body |
-
2002
- 2002-04-05 DE DE2002115059 patent/DE10215059A1/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004003139U1 (en) * | 2004-03-01 | 2005-07-28 | Gebr. Fasel Betonwerk Gmbh | Concrete pipe with corrosion-resistant inner lining |
| US7334820B2 (en) | 2004-03-01 | 2008-02-26 | Gebr. Fasel Betonwerk Gmbh | Concrete pipe with a corrosion-resistant inner lining |
| DE202007005696U1 (en) * | 2007-04-18 | 2008-08-21 | Dw Betonrohre Gmbh | Tubular component for the production of lines, shafts, fittings and the like. |
| DE102008019799B4 (en) | 2007-04-18 | 2018-09-20 | Berding Beton Gmbh | Tubular component for the production of lines, shafts, fittings and the like |
| WO2015175368A1 (en) * | 2014-05-12 | 2015-11-19 | Hawkeye Concrete Products Co. | Reinforced concrete pipe |
| US10563794B2 (en) | 2014-05-12 | 2020-02-18 | Fsc Technologies, Llc | Reinforced concrete pipe |
| DE102016103278A1 (en) * | 2016-02-24 | 2017-08-24 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Device for guiding fluid and manufacturing process |
| US10801648B2 (en) | 2016-02-24 | 2020-10-13 | ACO Severin Ahlmann GmbH & Co. Kommanditgesellschaft | Device for guiding liquid and production method |
| US20200370685A1 (en) * | 2018-02-05 | 2020-11-26 | Ulrich Schlüsselbauer | Plug connection between two tubular workpieces made of concrete, each workpiece having an inner liner made of plastic |
| US11796093B2 (en) * | 2018-02-05 | 2023-10-24 | Ulrich Schlüsselbauer | Plug connection between two tubular workpieces made of concrete, each workpiece having an inner liner made of plastic |
| EP3832040A1 (en) * | 2019-12-06 | 2021-06-09 | Predl GmbH | Prefabricated part with a concrete body |
| US11639595B2 (en) | 2019-12-06 | 2023-05-02 | Predl Gmbh | Prefabricated part with a concrete body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
| 8139 | Disposal/non-payment of the annual fee |