EP2217868A1 - Erdwärmesonde aus vernetztem polymermaterial - Google Patents
Erdwärmesonde aus vernetztem polymermaterialInfo
- Publication number
- EP2217868A1 EP2217868A1 EP08858664A EP08858664A EP2217868A1 EP 2217868 A1 EP2217868 A1 EP 2217868A1 EP 08858664 A EP08858664 A EP 08858664A EP 08858664 A EP08858664 A EP 08858664A EP 2217868 A1 EP2217868 A1 EP 2217868A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- layers
- geothermal probe
- geothermal
- probe according
- 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
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)
- 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)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Thermal Insulation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007017371U DE202007017371U1 (de) | 2007-12-11 | 2007-12-11 | Erdwärmesonde aus vernetztem Polymermaterial |
PCT/EP2008/010434 WO2009074287A1 (de) | 2007-12-11 | 2008-12-09 | Erdwärmesonde aus vernetztem polymermaterial |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2217868A1 true EP2217868A1 (de) | 2010-08-18 |
Family
ID=40545984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08858664A Ceased EP2217868A1 (de) | 2007-12-11 | 2008-12-09 | Erdwärmesonde aus vernetztem polymermaterial |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2217868A1 (de) |
DE (1) | DE202007017371U1 (de) |
WO (1) | WO2009074287A1 (de) |
Families Citing this family (5)
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 |
EP4310413A1 (de) * | 2022-07-20 | 2024-01-24 | Muovitech AB | Kollektor und dessen verwendung |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0632223A1 (de) * | 1993-06-01 | 1995-01-04 | KM Europa Metal Aktiengesellschaft | Kunststoffummanteltes Kupferrohr |
EP0869304A2 (de) * | 1996-12-24 | 1998-10-07 | REHAU AG + Co | Rohr aus thermoplastischem Kunststoff |
WO2001083613A2 (en) * | 2000-04-28 | 2001-11-08 | Golan Plastic Products | Weldable articles made of cross-linked polyolefins |
DE10159311A1 (de) * | 2001-08-03 | 2003-03-06 | 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 |
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 |
Family Cites Families (12)
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 |
FR2606487B1 (fr) * | 1986-11-07 | 1989-03-10 | Silix | Tubes a base de resine polyolefinique pour la realisation de canalisations, manchons pour leur assemblage et procede pour leur fabrication |
AT390069B (de) * | 1988-12-01 | 1990-03-12 | Egger Karl | Verfahren zur herstellung von fuer wasserfuehrende leitungen, insbesondere brauchbzw. heisswasserleitungen, bestimmten rohren oder formstuecken |
EP0582118A1 (de) * | 1992-08-06 | 1994-02-09 | Sacac Hergiswil Ag | Erdsondengebilde, Distanzhalter für Erdsondengebilde, mindestens einteiliger Erdpfahl mit Erdsonde, Erdwärmegewinnungsanlage sowie deren Verfahren |
CH687268A5 (de) * | 1993-06-09 | 1996-10-31 | Haka Ag Fabrik Fur Kunststoff | Sondenfuss fuer eine Erdsonde. |
SE505932C2 (sv) * | 1995-11-30 | 1997-10-27 | Borealis As | Användning av förnätad biaxiellt orienterad polyolefinplast som material i tryckrör |
GB2341435A (en) * | 1998-09-11 | 2000-03-15 | Burley Colin G | A method of installing crosslinked thermoplastics pipelines |
CH697102A5 (de) * | 1999-03-16 | 2008-04-30 | Haka Gerodur Ag | Verbindungsstück aus thermoplastischem Kunststoff für Rohrleitungen einer Erdsondenanlage. |
DE20202578U1 (de) * | 2002-02-19 | 2003-04-10 | Rehau Ag & Co | Erdsondenrohr |
EP1792932B1 (de) * | 2005-12-01 | 2011-06-01 | R. Nussbaum AG | Medienführendes Bauelement |
DE102007002606A1 (de) * | 2007-01-12 | 2008-07-17 | Ludwig Heinloth | Sondenfuß für eine Erdwärmesonde |
DE202007004346U1 (de) * | 2007-03-21 | 2007-10-31 | Rehau Ag + Co | Rohranordnung |
-
2007
- 2007-12-11 DE DE202007017371U patent/DE202007017371U1/de not_active Expired - Lifetime
-
2008
- 2008-12-09 EP EP08858664A patent/EP2217868A1/de not_active Ceased
- 2008-12-09 WO PCT/EP2008/010434 patent/WO2009074287A1/de active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0632223A1 (de) * | 1993-06-01 | 1995-01-04 | KM Europa Metal Aktiengesellschaft | Kunststoffummanteltes Kupferrohr |
EP0869304A2 (de) * | 1996-12-24 | 1998-10-07 | REHAU AG + Co | Rohr aus thermoplastischem Kunststoff |
WO2001083613A2 (en) * | 2000-04-28 | 2001-11-08 | Golan Plastic Products | Weldable articles made of cross-linked polyolefins |
DE10159311A1 (de) * | 2001-08-03 | 2003-03-06 | 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 |
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 |
Non-Patent Citations (2)
Title |
---|
DATABASE EPODOC [online] EUROPEAN PATENT OFFICE, THE HAGUE, NL; Database accession no. CN-01247978-U * |
See also references of WO2009074287A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE202007017371U1 (de) | 2009-04-16 |
WO2009074287A1 (de) | 2009-06-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3103305C2 (de) | Elektrisch schweißbare Muffe zum Verbinden von Leitungselementen | |
EP2340929B2 (de) | Verfahren zur herstellung eines kunststoffmantelrohres | |
WO2009074287A1 (de) | Erdwärmesonde aus vernetztem polymermaterial | |
DE102006056568A1 (de) | Kernstruktur und Verfahren zur Herstellung einer Kernstruktur | |
DE102012110265A1 (de) | Rohrinnenbeschichtungsmaterial sowie Verfahren zur Sanierung defekter Abwasserkanäle | |
WO1997043576A1 (de) | Verfahren zur herstellung einzelner leitunsabschnitte einer rohrleitung sowie eine solchermassen hergestellte rohrleitung | |
EP2966333A1 (de) | Anordnung mit zumindest einem verbundrohr | |
WO2003078905A1 (de) | Erdsondenrohr | |
WO2007054350A1 (de) | Einlegeschlauch zum auskleiden von rohrleitungen und kanälen insbesondere von abwasserkanälen | |
EP0531790A2 (de) | Verbundrohr, Verfahren zu seiner Herstellung und Rohrleitungsverbindung aus dem Verbundrohr | |
CH683026A5 (de) | Schweissmuffe für Kunststoffrohre. | |
DE102018003436A1 (de) | Rohrheizsystem für ein Flugzeug | |
EP0446314A1 (de) | Schweissmuffe und ein verfahren zu deren herstellung | |
WO2014079551A1 (de) | Verwendung eines ersten und eines zweiten polymermaterials | |
DE102012112280A1 (de) | Verfahren zum Herstellen eines Isolierverbundrohrs | |
DE102015204926A1 (de) | Umhüllung einer Mantelfläche eines Rohrs | |
EP1036643B1 (de) | Verfahren zur Herstellung wärmegedämmter Rohrleitungen | |
DE69101273T2 (de) | Mehrlagiges Rohr, Leitung aus mehreren solchen Rohren und Verfahren zur fluiddichten Verbindung zweier solcher Rohre. | |
EP2636520A1 (de) | Verwendung eines Polymermaterials | |
DE10201501C1 (de) | Verfahren zur Reparatur defekter/undichter Kunststoffrohre oder -schläuche | |
CH718489B9 (de) | Thermisch gedämmtes Rohr. | |
EP1307680B1 (de) | Verfahren zum sanieren von rohren | |
EP1815965A1 (de) | Verfahren zur Herstellung eines Hohlkörpers | |
WO2013020784A1 (de) | Verfahren für die beschichtung eines isolationsbauteils und isolationsbauteil | |
EP1322888B1 (de) | Rohrartige leitung oder behälter zum transport bzw. zum aufbewahren kryogener medien und verfahren zur herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20100329 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170412 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20190124 |