WO2009074287A1 - Sonde géothermique en matériau polymère réticulé - Google Patents

Sonde géothermique en matériau polymère réticulé Download PDF

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Publication number
WO2009074287A1
WO2009074287A1 PCT/EP2008/010434 EP2008010434W WO2009074287A1 WO 2009074287 A1 WO2009074287 A1 WO 2009074287A1 EP 2008010434 W EP2008010434 W EP 2008010434W WO 2009074287 A1 WO2009074287 A1 WO 2009074287A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
layers
geothermal probe
geothermal
probe according
Prior art date
Application number
PCT/EP2008/010434
Other languages
German (de)
English (en)
Inventor
Volker Liebel
Original Assignee
Rehau Ag + Co
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 Rehau Ag + Co filed Critical Rehau Ag + Co
Priority to EP08858664A priority Critical patent/EP2217868A1/fr
Publication of WO2009074287A1 publication Critical patent/WO2009074287A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73753—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized
    • B29C66/73754—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized the to-be-joined areas of both parts to be joined being partially cured
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/17—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0691—PEX, i.e. crosslinked polyethylene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the invention relates to a geothermal probe made of a crosslinked polymer material and a device for geothermal energy production with such a geothermal probe, and a device for geothermal energy storage with such a geothermal probe.
  • Geothermal probes made of uncrosslinked polyethylene e.g. made of PE100, PE-RT or PE-RC, and of cross-linked polyethylene (PE-Xa).
  • Geothermal probes made of PE100 can be operated only up to temperatures of about 40 0 C and are only limited stress cracking and thus not pressure resistant puncture resistant, ie they are mandatory to lay in a sand bed.
  • geothermal probes made of PE-RT can be operated at temperatures up to about 80 C C, but are limited stress cracking and thus as a pressure tube also not point load resistance.
  • Geothermal probes made of PE-RC can only be operated up to temperatures of about 40 "C.
  • Geothermal probes made of PE-Xa can indeed be operated up to temperatures of about 95 0 C and are fully stress cracking resistant and thus puncture resistant as a pressure tube, but can not be welded with a polymeric probe foot.
  • the object of the present invention is therefore to provide a geothermal probe which overcomes the disadvantages of the known prior art and in particular allows a molded part to be welded to a tube as a probe foot, the crosslinking of the polymer material ensuring the outstanding mechanical and thermal properties should.
  • geothermal probes which consist of at least two approximately mutually parallel extending polymeric tubes which are provided at one end with a welded molded part, wherein at least one tube and the molded part are crosslinked.
  • Such tubes can be produced, for example, by forming silane-crosslinkable polymer material, in particular polyethylene, into tubes and molded parts. They crosslink slowly after production and are welded together before reaching a critical degree of crosslinking.
  • the critical degree of crosslinking is in the range of max. 35%.
  • the still to be carried out after the welding of pipes and So ⁇ denfuß networking can be carried out or accelerated by means of elevated temperature under the influence of water vapor.
  • the resulting so-called silane-crosslinked polyethylene (PE-Xb) is particularly resistant and therefore preferably suitable for the production of geothermal probes.
  • geothermal probes according to the invention can be prepared by first geothermal probes are made of uncrosslinked polyethylene pipes and fittings with each other by means of welding, and this assembly is then crosslinked by radiation.
  • the radiation cross-linked polyethylene (PE-Xc) is particularly well suited for the production of geothermal probes.
  • geothermal probes Two types of such geothermal probes are possible:
  • Tube with a lumen whose diameter is greater than the diameter of a second tube is provided, and the second tube is positioned in the lumen of the first tube.
  • the geothermal probe, the molded part and the first tube are grounded.
  • Such a geothermal probe has a higher heat transfer performance, but is more expensive in the production and installation.
  • the invention also relates to an embodiment in which the tube and / or the molded part has layer-shaped walls, in particular with inner, outer or intermediate layers.
  • These layers can include primer layers, scuff layers, heat conducting layers, heat insulating layers, diffusion barrier layers, marking layers, slip layers, inspection layers, leakage detection layers, and others.
  • the tube which is not earthed, may be at least partially foamed.
  • the tube, which is not earthed, is crosslinked.
  • Fig. 1 shows a cross section through a geothermal probe with two approximately parallel tubes, which are connected by a molding at one end;
  • Fig. 2 shows a cross section through a geothermal probe with two tubes arranged approximately parallel, with an inner tube positioned in the outer tube, with a molding closing the outer tube at one end.
  • a geothermal probe (1) which consists of two parallel to each other duri fenden pipes (2.1, 2.2), at the lower end of a two parts (3.1, 3.2) joined molded part is welded.
  • the tubes and the molded parts consist of silane-crosslinked polyethylene (PE-Xb).
  • the two tubes (2.1, 2.2) can optionally be used as each forward and return a geothermal heat recovery device.
  • a geothermal probe (1) is shown, which also consists of two parallel to each other extending tubes (2.1, 2.2), wherein the tube (2.2) in the interior of the tube (2.1) is arranged.
  • a molded part (3) is welded.
  • the tube (2.1) and the molded part (3) consist of radiation-crosslinked polyethylene (PE-Xc).
  • the tube (2.2) consist of cross-linked polyethylene.
  • the tube can be used as a flow or in the heat removal, the pipe 2.2 as a flow during the heat input advantageous.
  • the geothermal heat generating device is characterized in that it comprises at least one geothermal probe according to the aforementioned disclosure.
  • the geothermal storage device is characterized in that it comprises at least one geothermal probe according to the aforementioned disclosure.
  • heat energy is introduced into the environment of the built-in probe by means of the geothermal probe according to the invention in order to store it there locally and for a limited time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Thermal Insulation (AREA)

Abstract

L'invention concerne une sonde géothermique (1) comprenant au moins deux tubes (2.1, 2.2) polymères, parallèles au moins par endroits, et une pièce façonnée (3) en une ou plusieurs parties réalisée dans un matériau de même type, cette pièce étant située à une extrémité d'au moins un tube. Cette sonde géothermique se caractérise en ce qu'au moins le tube en contact avec la terre est soudé à la pièce façonnée et lié à celle-ci par réticulation.
PCT/EP2008/010434 2007-12-11 2008-12-09 Sonde géothermique en matériau polymère réticulé WO2009074287A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08858664A EP2217868A1 (fr) 2007-12-11 2008-12-09 Sonde géothermique en matériau polymère réticulé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007017371U DE202007017371U1 (de) 2007-12-11 2007-12-11 Erdwärmesonde aus vernetztem Polymermaterial
DE202007017371.7 2007-12-11

Publications (1)

Publication Number Publication Date
WO2009074287A1 true WO2009074287A1 (fr) 2009-06-18

Family

ID=40545984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/010434 WO2009074287A1 (fr) 2007-12-11 2008-12-09 Sonde géothermique en matériau polymère réticulé

Country Status (3)

Country Link
EP (1) EP2217868A1 (fr)
DE (1) DE202007017371U1 (fr)
WO (1) WO2009074287A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4310413A1 (fr) * 2022-07-20 2024-01-24 Muovitech AB Collecteur et son utilisation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009036325A1 (de) * 2009-08-06 2011-02-10 Rehau Ag + Co. Einbauvorrichtung für eine Erdwärmesonde
DE102009036324A1 (de) * 2009-08-06 2011-02-10 Rehau Ag + Co. Erdwärmesondeneinbauvorrichtung
DE102012005048A1 (de) * 2012-03-15 2013-09-19 Daldrup & Söhne AG Förderverrohrung zur Verwendung bei einer Erdwärmesonde zur Gewinnung geothermischer Energie und Verfahren zum Einbau einer solchen Förderverrohrung
DE202012104337U1 (de) * 2012-11-12 2014-02-17 Rehau Ag + Co. Lasttragendes Element mit einem Rohr

Citations (9)

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Publication number Priority date Publication date Assignee Title
US4452303A (en) * 1980-08-07 1984-06-05 Wavin B. V. Device and a method for recovering heat from the soil
EP0337037A1 (fr) * 1988-04-11 1989-10-18 Societe Alphacan Tubes à base de résine polyoléfinique pour la réalisation de canalisations, manchons pour leur assemblage, et procédé pour leur fabrication
EP0371952A2 (fr) * 1988-12-01 1990-06-06 Karl Egger Méthode de fabrication de tubes ou pièces de conduites d'eaux, spécialement pour canalisations d'eaux industrielles ou chaudes
CH687268A5 (de) * 1993-06-09 1996-10-31 Haka Ag Fabrik Fur Kunststoff Sondenfuss fuer eine Erdsonde.
WO1997019807A1 (fr) * 1995-11-30 1997-06-05 Borealis A/S Utilisation de materiaux polyolefiniques reticules dans des conduites de pression
GB2341435A (en) * 1998-09-11 2000-03-15 Burley Colin G A method of installing crosslinked thermoplastics pipelines
DE20202578U1 (de) * 2002-02-19 2003-04-10 Rehau Ag & Co Erdsondenrohr
EP1792932A1 (fr) * 2005-12-01 2007-06-06 R. Nussbaum AG Elément de transport des substances
DE202007004346U1 (de) * 2007-03-21 2007-10-31 Rehau Ag + Co Rohranordnung

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EP0582118A1 (fr) * 1992-08-06 1994-02-09 Sacac Hergiswil Ag Sonde souterraine, entretoise pour sonde souterraine et pieu monobloc à sonde souterraine, installation géothermique et procédé pour la fabrication d'une installation géothermique
DE9308202U1 (de) * 1993-06-01 1993-07-15 KM-kabelmetal AG, 4500 Osnabrück Kunststoffummanteltes Kupferrohr
EP0869304B1 (fr) * 1996-12-24 2002-06-05 REHAU AG + Co Tuyau en thermoplastique
CH697102A5 (de) * 1999-03-16 2008-04-30 Haka Gerodur Ag Verbindungsstück aus thermoplastischem Kunststoff für Rohrleitungen einer Erdsondenanlage.
IL142083A0 (en) * 2000-04-28 2002-03-10 Golan Plastic Products Polymeric articles with welding-aimed portion
DE10159311B4 (de) * 2001-08-03 2007-02-01 Wolfgang Herr In-situ Verdampfung
CN2586045Y (zh) * 2001-10-26 2003-11-12 甘国工 硅烷交联聚乙烯管道连接件
DE102007002606A1 (de) * 2007-01-12 2008-07-17 Ludwig Heinloth Sondenfuß für eine Erdwärmesonde
DE202007006682U1 (de) * 2007-05-07 2007-08-16 Gerodur Mpm Kunststoffverarbeitung Gmbh & Co. Kg Erdwärmesonde
DE202007008880U1 (de) * 2007-06-22 2007-08-23 Rehau Ag + Co. Wärmeübertragungsrohr

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452303A (en) * 1980-08-07 1984-06-05 Wavin B. V. Device and a method for recovering heat from the soil
EP0337037A1 (fr) * 1988-04-11 1989-10-18 Societe Alphacan Tubes à base de résine polyoléfinique pour la réalisation de canalisations, manchons pour leur assemblage, et procédé pour leur fabrication
EP0371952A2 (fr) * 1988-12-01 1990-06-06 Karl Egger Méthode de fabrication de tubes ou pièces de conduites d'eaux, spécialement pour canalisations d'eaux industrielles ou chaudes
CH687268A5 (de) * 1993-06-09 1996-10-31 Haka Ag Fabrik Fur Kunststoff Sondenfuss fuer eine Erdsonde.
WO1997019807A1 (fr) * 1995-11-30 1997-06-05 Borealis A/S Utilisation de materiaux polyolefiniques reticules dans des conduites de pression
GB2341435A (en) * 1998-09-11 2000-03-15 Burley Colin G A method of installing crosslinked thermoplastics pipelines
DE20202578U1 (de) * 2002-02-19 2003-04-10 Rehau Ag & Co Erdsondenrohr
EP1792932A1 (fr) * 2005-12-01 2007-06-06 R. Nussbaum AG Elément de transport des substances
DE202007004346U1 (de) * 2007-03-21 2007-10-31 Rehau Ag + Co Rohranordnung

Non-Patent Citations (1)

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Title
See also references of EP2217868A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4310413A1 (fr) * 2022-07-20 2024-01-24 Muovitech AB Collecteur et son utilisation

Also Published As

Publication number Publication date
EP2217868A1 (fr) 2010-08-18
DE202007017371U1 (de) 2009-04-16

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