EP2084465A1 - Agencement de tuyaux - Google Patents

Agencement de tuyaux

Info

Publication number
EP2084465A1
EP2084465A1 EP08734670A EP08734670A EP2084465A1 EP 2084465 A1 EP2084465 A1 EP 2084465A1 EP 08734670 A EP08734670 A EP 08734670A EP 08734670 A EP08734670 A EP 08734670A EP 2084465 A1 EP2084465 A1 EP 2084465A1
Authority
EP
European Patent Office
Prior art keywords
layer
pipe
tubes
connecting element
tube
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.)
Ceased
Application number
EP08734670A
Other languages
German (de)
English (en)
Inventor
Volker Liebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38650881&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2084465(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rehau AG and Co filed Critical Rehau AG and Co
Publication of EP2084465A1 publication Critical patent/EP2084465A1/fr
Ceased legal-status Critical Current

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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • 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 pipe arrangement for geothermal probes according to the preamble of claim 1.
  • DE 202004007567 U1 describes a geothermal probe for introduction into a borehole in the ground.
  • This geothermal probe comprises an outer wall of the geothermal probe forming outer tube which is closed at its lower end and extending inside the outer tube inner tube, wherein the annular space between the outer tube and the inner tube and the interior of the inner tube form lines for a heat transfer medium.
  • the outer tube is formed at least over a major part of its longitudinal extent as a corrugated pipe.
  • EP 05821 18 A1 a pipe arrangement of long, parallel plastic pipes is known, which are connected at the lower end.
  • at least one head part is connected in a liquid-tight manner to at least two straight, parallel long pipes by welding or bonding and is described by at least one bottom part, which is connected in a liquid-tight manner to at least one of the straight pipes by welding or gluing.
  • DE 20202578 U1 a pipe arrangement is known, for the production of tubes made of cross-linked polyethylene are required.
  • pipe arrangements for geothermal probes are known in which a pipe section helical formed.
  • the helix can have constant or variable diameters.
  • Pipe arrangements for geothermal probes of cross-linked polymeric materials are resistant to point loads and do not have slow crack growth, but there is the problem that when attaching the connecting elements of pipe pairs they can not be butt welded, so that the production of such a pipe arrangement for geothermal probes material- and costly.
  • FNCT Frell Notched Creep Test
  • a pipe arrangement for geothermal probes is proposed from at least two tubes having at least one, a lumen-surrounding layer having at one end at least one, at least one layer exhibiting, connecting element, wherein at least one of the tubes at least partially from an unver- polymer material, wherein the polymeric material of the at least one layer of the tubes and / or the connecting element has a FNCT (Fill Emergency Creep Test) according to ISO 16770 of at least 3000 hours.
  • FNCT Fall Emergency Creep Test
  • geothermal probes are proposed in which a pipe is designed to be helical.
  • the helix can have constant or variable diameters.
  • the invention provides to perform the non-helical tube with thermal insulation.
  • a further advantage of the pipe arrangement according to the invention for geothermal probes is seen in that the polymeric material of the at least one layer of the pipes and / or of the connecting element has an FNCT value (Füll Notched Creep Test) according to ISO 16770 of at least 5000 hours.
  • FNCT value Frell Notched Creep Test
  • This advantageous embodiment of the pipe arrangement according to the invention for geothermal probes a further increased point load resistance and in continuous operation a significantly reduced growth of grooves and notches is achieved.
  • a point load resistance is achieved up to a temperature of 40 C C, whereby a permanent safety of the pipe arrangements for geothermal probes can be ensured with correspondingly high flow temperatures.
  • the polymeric material of the at least one layer of the pipes and / or the connecting element has an MRS value (minimum required strength) of at least 10 MPa at 20 ° C. over 50 years.
  • MRS value minimum required strength
  • the polymeric material of at least one layer of the tubes and / or the connecting element has an MRS value (minimum required strength) of at least 12.5 MPa at 20 0 C over 50 years.
  • MRS value minimum required strength
  • the polymeric material of the at least one layer of the tubes and / or the connecting element at least one UV resistance-increasing aggregate, with which the allowable periods for outdoor storage of the invention Rohran- orders are increased for geothermal probes can.
  • the polymeric material of the at least one layer of the tubes and / or the connecting element have at least one the mechanical resistance increasing additive or reinforcing material.
  • a pipe arrangement according to the invention for geothermal probes can be made available, which can be dimensioned according to the legal requirements or standards easily and inexpensively.
  • the pipe arrangement according to the invention for borehole heat exchangers is advantageously designed such that the polymeric material of the at least one layer of the pipes and / or of the connecting element has at least one additive which increases the diffusion resistance.
  • These additives can be added in additions of about 1% to 30% and thus allow optimal dimensionable mechanical properties of the pipe assembly according to the invention for geothermal probes.
  • the polymeric material of the at least one layer of the tube and / or the connecting element have at least one coloring additive, so that, for example, in piping arrangements for geothermal probes, which are interleaved, by different coloring additives of the Flow and the return are kenn Schweizerbar.
  • the polymeric material of the at least one layer of the tubes and / or the connecting element has an admixture of at least one antistatic additive, wherein the surface resistance of the tube and / or the connecting element at most 10 "10
  • the invention further teaches a pipe arrangement for borehole heat exchangers in which the polymeric material of the at least one layer of the pipes and / or the connecting element has an admixture of at least one electrically conductive aggregate, wherein the surface resistance of the pipes and / or the connecting element is at most 10 6 ohms / cm.
  • These additives can be added to the poly- mers material is generally between about 1% to about 20%, depending on the legal requirements as well as the dimensioning standards.
  • this multilayer pipe has an inner layer made of a polyethylene with a wall thickness of about 0.7 mm, with a FNCT of about 6,000 h, at 80 0 C, 4.0 MPa and in the presence of 2% wetting agent Arkopal®.
  • Figure 1 shows a schematic sectional view of a pipe arrangement according to the invention for geothermal probes
  • Figure 2 shows a schematic sectional view of another pipe arrangement according to the invention for geothermal probes
  • Figure 3 shows a schematic side view with a partial section of another pipe arrangement according to the invention for geothermal probes
  • Figure 4 shows a schematic side view with a partial section of another pipe arrangement according to the invention for geothermal probes.
  • FIG. 1 shows a tube arrangement according to the invention which has two tubes 1, 2 which have at least one layer surrounding a lumen 3.
  • a connecting element 4 is arranged, which is liquid-tightly connected to the tubes 1, 2.
  • the tubes 1, 2 and the connecting element 4 are made of an uncrosslinked polymeric material, for example polyethylene.
  • the polymeric material of at least one layer of the tubes 1, 2 and the connecting element 4 in this embodiment has a FNCT value of 3550 hours.
  • the polymeric material of the at least one layer of the tubes 1, 2 and the connecting element 4 is formed so that it has an MRS value of 11, 1 MPa at 20 0 C over 50 years.
  • FIG. 2 shows a further schematic representation of a pipe arrangement according to the invention for geothermal probes from two tubes 1, 2 shown.
  • the tube 2 is inserted concentrically into the lumen 3 of the tube 1.
  • a plurality of tubes 2 can be introduced into the lumen 3 of the tube 1, which can be arranged both concentrically and eccentrically.
  • a connecting element 4 is arranged, which is connected via a cohesive connection such as welding liquid-tight manner with the free end 10 of the tube 1.
  • the tube 1 and the tube 2 have approximately the same length, so that between the free end 20 of the tube 2 and the opposite connecting element 4 creates a free space in which the liquid transported through the lumen 3 of the tube 2 via the lumen 3 of the Tube 1 is traceable again.
  • the polymeric material of the at least one layer of the tube 1 in this embodiment has a FNCT of 5550 hours and an MRS of 13.1 MPa.
  • the polymeric material of the at least one layer of the tube 2 in this embodiment has a FNCT value of 3100 hours and an MRS value of 10.5 MPa at 20 0 C over 50 years.
  • FIG. 3 shows, in a further schematic representation, that the tube 1, which forms the supply line of the pipe arrangement for borehole heat exchangers, is arranged in a helical shape.
  • the helix has a constant diameter.
  • the tube 2 shown is the return of the tube assembly.
  • FIG. 4 shows, in a further schematic representation, that the tube 1, which is arranged helically, is connected to the tube 2 by means of the connecting element 4.
  • Tube 2 is used in this arrangement as a return.
  • the tube 2 is provided with a thermal insulation 21, which reduces heat loss of the guided or stored in the tube 2 fluid.
  • a foam layer or a layer which has a reduced heat transfer due to structure, choice of materials, additives, etc. can be provided as thermal insulation 21.
  • the connecting element 4 of the pipe arrangement according to the invention for geothermal probes can be designed in many ways, in particular, the teaching of the invention also known per se means to liquid-tight connection of the connecting means 4 with the tube 1, 2 in the form of one or more parts plug or welding fittings made of any materials , which can also be designed as a locking sleeve, sliding sleeve, locking element, electric welding sleeve and the like.
  • connection means 4 is replaced by additional components, such as e.g. comprehensive half-shells, a foam or encapsulation is mechanically protected.
  • the teachings of the invention also include a geothermal heat recovery or storage device having a tube assembly according to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'agencement de tuyaux pour sondes géothermiques selon cette invention se compose d'au moins deux tuyaux (1, 2), qui présentent au moins une couche entourant un lumen (3), un des tuyaux (1, 2) servant d'entrée et l'autre de retour, et au moins un des tuyaux (1, 2) étant fabriqué au moins partiellement dans un matériau polymère non réticulé. L'agencement de tuyaux se caractérise en ce que le matériau polymère de la ou des couches des tuyaux (1, 2) présente une valeur FNCT (Full Notched Creep Test) selon ISO 16670 d'au moins 3000 h.
EP08734670A 2007-03-21 2008-03-19 Agencement de tuyaux Ceased EP2084465A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007004346U DE202007004346U1 (de) 2007-03-21 2007-03-21 Rohranordnung
PCT/EP2008/002194 WO2008113569A1 (fr) 2007-03-21 2008-03-19 Agencement de tuyaux

Publications (1)

Publication Number Publication Date
EP2084465A1 true EP2084465A1 (fr) 2009-08-05

Family

ID=38650881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08734670A Ceased EP2084465A1 (fr) 2007-03-21 2008-03-19 Agencement de tuyaux

Country Status (5)

Country Link
US (1) US8167027B2 (fr)
EP (1) EP2084465A1 (fr)
DE (2) DE202007004346U1 (fr)
EA (1) EA022199B1 (fr)
WO (1) WO2008113569A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009053033A2 (fr) 2007-10-26 2009-04-30 Rehau Ag + Co Procédé pour déformer des tubes

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007011565U1 (de) * 2007-08-17 2009-01-02 Rehau Ag + Co Rohranordnung
DE202007017371U1 (de) * 2007-12-11 2009-04-16 Rehau Ag + Co Erdwärmesonde aus vernetztem Polymermaterial
DE202008017556U1 (de) * 2008-01-17 2010-01-07 Tracto-Technik Gmbh & Co. Kg Anlage zur Umwelt-Wärmenutzung
DE202008012453U1 (de) 2008-09-18 2010-02-11 Rehau Ag + Co Erdwärmesonde
DE202008015520U1 (de) * 2008-11-22 2010-04-22 Rehau Ag + Co Kunststoffrohr
CN102265099B (zh) * 2008-12-24 2014-12-10 达克斯制造有限公司 热交换器和合并热交换器的热水器
US20110036112A1 (en) * 2009-08-17 2011-02-17 American Ecothermal, Inc. Turbulence Inducing Heat Exchanger
DE202009011393U1 (de) * 2009-08-24 2010-12-30 Rehau Ag + Co. Transport- und Lagereinheit
DE102009045882A1 (de) * 2009-10-21 2011-04-28 Evonik Degussa Gmbh Erdwärmesonde für eine geotherme Wärmepumpe
US8322092B2 (en) 2009-10-29 2012-12-04 GS Research LLC Geosolar temperature control construction and method thereof
US8595998B2 (en) 2009-10-29 2013-12-03 GE Research LLC Geosolar temperature control construction and method thereof
AU2010202125B1 (en) 2010-05-26 2010-09-02 Takeda Pharmaceutical Company Limited A method to produce an immunoglobulin preparation with improved yield
US8905083B2 (en) 2012-01-27 2014-12-09 Titeflex Corporation Energy dissipative tubes and methods of fabricating and installing the same
GB2498936A (en) * 2012-01-31 2013-08-07 Norner Innovation As Polyethylene with multi-modal molecular weight distribution
DE102012111140A1 (de) * 2012-11-20 2014-05-22 Rehau Ag + Co. Verwendung eines ersten und eines zweiten Polymermaterials
JP6050670B2 (ja) * 2012-12-07 2016-12-21 ダイキン工業株式会社 空気調和装置の施工方法
GB201313937D0 (en) 2013-08-05 2013-09-18 Ineos Europe Ag Polymerisation process
US9777562B2 (en) * 2013-09-05 2017-10-03 Saudi Arabian Oil Company Method of using concentrated solar power (CSP) for thermal gas well deliquification
FI130172B (en) * 2018-02-12 2023-03-27 Fira Group Oy Geothermal heat exchanger, geothermal heating arrangement and method for storing heat energy in the ground

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29906998U1 (de) * 1999-04-20 1999-07-01 Wavin Bv Zweischichtiges Rohr
EP1036974A1 (fr) 1999-03-16 2000-09-20 HAKA.Gerodur AG Elément de raccordement pour tuyaux d'une installation de sonde souterraine
DE20010111U1 (de) 2000-06-08 2001-10-31 Wavin Bv Mehrschichtiges Rohr

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5706888A (en) * 1995-06-16 1998-01-13 Geofurnace Systems, Inc. Geothermal heat exchanger and heat pump circuit
EP1041113A1 (fr) * 1999-03-30 2000-10-04 Fina Research S.A. Polyolefines et leurs applications
EP1199161A1 (fr) * 2000-10-20 2002-04-24 SOLVAY POLYOLEFINS EUROPE - BELGIUM (Société Anonyme) Tuyau en polyéthylène
EP1201713A1 (fr) * 2000-10-27 2002-05-02 ATOFINA Research Tube en polyéthylène et Procédé de fabrication
DE20202578U1 (de) * 2002-02-19 2003-04-10 Rehau Ag & Co Erdsondenrohr
DE50303122D1 (de) * 2003-10-17 2006-06-01 Geberit Technik Ag Mehrschichtiges Rohr aus thermoplastischem Kunststoff
AT7510U1 (de) * 2004-04-26 2005-04-25 Armin Ing Amann Erdwärmesonde
WO2006002778A1 (fr) * 2004-06-25 2006-01-12 Basell Poliolefine Italia S.R.L. Systemes de canalisation constitues de polymerees aleatoires de propylene et d'alpha-olefines
DE202005004815U1 (de) * 2005-03-22 2005-07-28 Gf-Tec Gmbh Sondenendstück
DE202006012992U1 (de) * 2006-08-15 2006-11-09 Lohrmann, Norbert Wärmeübertragersonde

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1036974A1 (fr) 1999-03-16 2000-09-20 HAKA.Gerodur AG Elément de raccordement pour tuyaux d'une installation de sonde souterraine
DE29906998U1 (de) * 1999-04-20 1999-07-01 Wavin Bv Zweischichtiges Rohr
DE20010111U1 (de) 2000-06-08 2001-10-31 Wavin Bv Mehrschichtiges Rohr

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"PolyPipe(R) EHMW PE3408/PE3608 Pipe", DATENBLATT, February 2006 (2006-02-01), pages 1 - 4, XP003028650
"Total Petrochemicals: High-density polyethylene", TECHNICAL DATA SHEET "HDPE XSC 50 BLUE" PE 100 HIGH PROTECTION, January 2005 (2005-01-01), pages 1 - 2, XP003028652
See also references of WO2008113569A1 *
TOTAL PETROCHEMICALS RESEARCH: "PE-Werkstoff PE 100 konigsblau fur Druckrohre und- Formstucke vom Typ HDPE XSC 50 Blue", ZERTIFIKAT DER DIN CERTO GESELLSCHAFT FUR KONFORMITATSBEWERTUNG MBH, 17 December 2004 (2004-12-17), pages 1, XP003028651
VERSAPIPE HD: "Polyethylene pipes - High density. Manufactured from PE3408 high density polyethylene as per CSA C.448", SPECIFICATION SHEET, 24 April 2006 (2006-04-24), pages 1 - 2, XP003028649

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009053033A2 (fr) 2007-10-26 2009-04-30 Rehau Ag + Co Procédé pour déformer des tubes

Also Published As

Publication number Publication date
WO2008113569A1 (fr) 2008-09-25
US20080236784A1 (en) 2008-10-02
EA200970876A1 (ru) 2010-04-30
DE202007004346U1 (de) 2007-10-31
EA022199B1 (ru) 2015-11-30
US8167027B2 (en) 2012-05-01
DE202008016917U1 (de) 2009-03-05
DE202007004346U9 (de) 2008-04-24

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