WO2007031262A1 - Echangeur thermique, en particulier echangeur thermique pour gaz d'echappement - Google Patents
Echangeur thermique, en particulier echangeur thermique pour gaz d'echappement Download PDFInfo
- Publication number
- WO2007031262A1 WO2007031262A1 PCT/EP2006/008851 EP2006008851W WO2007031262A1 WO 2007031262 A1 WO2007031262 A1 WO 2007031262A1 EP 2006008851 W EP2006008851 W EP 2006008851W WO 2007031262 A1 WO2007031262 A1 WO 2007031262A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- coating
- exhaust gas
- sol
- gas heat
- Prior art date
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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
Definitions
- Heat exchanger in particular exhaust gas heat exchanger
- the invention relates to a heat exchanger, in particular an exhaust gas heat exchanger, with at least one of a medium, in particular exhaust gas, acted upon surface of metal, in particular of aluminum or stainless steel, which is provided with a coating.
- the invention also relates to a method for producing a heat exchanger described above.
- Exhaust gas mainly from diesel engines, leads in exhaust gas heat exchangers together with moisture and temperature to corrosion attacks on the metallic materials used.
- temperature-resistant coatings can be used.
- the object of the invention is to provide a heat exchanger, in particular an exhaust gas heat exchanger, with at least one of a medium, in particular of exhaust gas, acted upon surface of metal, in particular of aluminum or stainless steel, which is provided with a coating, the coating better Has properties as conventional paints and the production is safe to produce.
- the object is in a heat exchanger, in particular an exhaust gas heat exchanger, with at least one of a medium, in particular of Exhaust gas, applied surface of metal, in particular of aluminum or stainless steel, which is provided with a coating, achieved in that the coating comprises a coating material based on nanotechnology.
- the coating material comprises at least one nanomaterial or a nanostructure.
- the coating is vitreous and has a very good chemical resistance.
- a preferred embodiment of the heat exchanger is characterized in that the coating comprises a main component which is composed of an organic and an inorganic portion. Via the crosslinking temperature, the properties of the coating can be defined or varied over wide limits.
- the heat exchanger is characterized in that the coating contains silicon.
- organo (alkoxy) silanes are selectively hydrolyzed by using suitable catalysts with elimination of alcohols.
- the heat exchanger is characterized in that the coating contains titanium, zirconium, aluminum, magnesium, zinc and / or calcium. Due to the different substances, the inorganic network can be selectively modified.
- the above-mentioned object is achieved in that the coating is produced in a sol-gel process.
- a sol for the production of nanomaterials is converted into a gel.
- Hydrolysis and condensation reactions generate a three-dimensional network of molecules stored together in a liquid.
- thermal process steps the gels are processed into nanomaterials or nanostructures.
- a preferred embodiment of the method is characterized in that at least one sol is deposited on the surface to be coated. is brought.
- the surface to be coated can be wetted with the sol in any manner.
- Another preferred embodiment of the method is characterized in that the sol is cured to form a crosslinked polymer layer.
- the curing is preferably carried out under the influence of temperature.
- a heat exchanger to be coated is flooded with the coating material and emptied; the emptied heat exchanger is heated in a drying oven.
- the heat exchanger to be coated is forcibly flooded by the coating material and then emptied. Thereafter, the heat exchanger is preferably hung so that excess coating material can completely leak without forming unwanted accumulations of coating material inside the heat exchanger. Drops adhering to the outlet of the heat exchanger are removed in a suitable manner, for example by means of compressed air or with the aid of an electrostatic precipitator.
- the invention relates to an exhaust gas heat exchanger made of aluminum or stainless steel.
- the exhaust gas heat exchanger has a cavity which is traversed by exhaust gas during operation of the exhaust gas heat exchanger.
- the cavity is coated with a coating material based on nanotechnology.
- the main component of the coating material is composed of an organic and an inorganic portion.
- Via the crosslinking temperature the properties of the coating can be defined over wide limits. At high baking temperatures, a higher proportion The organic ingredients expelled, that is, the degree of crosslinking is higher. As a result, the corrosion resistance of the layer increases. At low stoving temperatures, the proportion of organic ingredients is higher, that is, the ductility of the coating is greater.
- An exhaust gas heat exchanger to be coated is forcibly flooded with the coating material according to one aspect of the present invention and then emptied. Thereafter, the exhaust gas heat exchanger is suspended so that excess coating material can completely leak without forming accumulations in the interior. Adhesive drops at the outlet are removed in a suitable manner, for example by compressed air or with the aid of an electrostatic droplet stripper. Subsequently, the exhaust gas heat exchanger then passes through a drying oven.
- ORMOCER harbors a brand of the Fraunhofer Deutschen Republic for the promotion of applied research in Kunststoff.
- organo (alkoxy) silanes are specifically hydrolyzed by using suitable catalysts for splitting off alcohols, for example methanol, ethanol, etc.
- suitable catalysts for splitting off alcohols for example methanol, ethanol, etc.
- Subsequent condensation reactions lead to the formation of organically modified inorganic-oxidic structures.
- silicon can also be partially replaced by other elements, in particular titanium, zirconium or aluminum.
- the elements magnesium, zinc and calcium can be incorporated.
- the aqueous-alcoholic sols are applied by flooding to the heat exchanger to be coated, which is also referred to as a heat exchanger, and thermally cured. This results in a crosslinked polymer layer.
- the aim of the coating is, in addition to the anti-corrosive and / or water-repellent property at the same time to prevent the adhesion of dirt, particles, soot and oil films.
- This oleophobic effect when using ORMOCER layers in a proportion of 0.1 to 10%, preferably 0.5 to 5%, in particular 1 to 2%, of Fluorosilanes can be achieved in the ORMOCER layer.
- the incorporation of a simultaneously hydrophobic and oleophobic character of the layer is achieved by adding an alkoxysilane with highly fluorinated alkyl chains. Particularly favorable effects are achieved with silanes of the type F13 (CF 3 - (CF 2 ) S -) and F16 (CF 2 H- (CF 2 H).
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/066,588 US20080245512A1 (en) | 2005-09-14 | 2006-09-12 | Heat Exchanger, In Particular Exhaust Gas Heat Exchanger |
JP2008530399A JP2009508080A (ja) | 2005-09-14 | 2006-09-12 | 熱交換器、特に排気熱交換器 |
EP06805687A EP1926962A1 (fr) | 2005-09-14 | 2006-09-12 | Echangeur thermique, en particulier echangeur thermique pour gaz d'echappement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005043730A DE102005043730A1 (de) | 2005-09-14 | 2005-09-14 | Wärmetauscher, insbesondere Abgaswärmetauscher |
DE102005043730.3 | 2005-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007031262A1 true WO2007031262A1 (fr) | 2007-03-22 |
Family
ID=37507708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/008851 WO2007031262A1 (fr) | 2005-09-14 | 2006-09-12 | Echangeur thermique, en particulier echangeur thermique pour gaz d'echappement |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080245512A1 (fr) |
EP (1) | EP1926962A1 (fr) |
JP (1) | JP2009508080A (fr) |
CN (1) | CN101305255A (fr) |
DE (1) | DE102005043730A1 (fr) |
RU (1) | RU2430323C2 (fr) |
WO (1) | WO2007031262A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008033222A1 (de) | 2008-07-15 | 2010-01-21 | Behr Gmbh & Co. Kg | Verfahren zur Herstellung eines Wärmeübertragers und Wärmeübertrager, herstellbar nach dem Verfahren |
DE102008062705A1 (de) | 2008-12-18 | 2010-06-24 | Behr Gmbh & Co. Kg | Beschichtungsverfahren und Beschichtungsvorrichtung zum Herstellen eines Bauteils sowie Wärmetauscher und Verwendung des Wärmetauschers |
JP5218525B2 (ja) * | 2010-11-09 | 2013-06-26 | 株式会社デンソー | 熱輸送流体が流通する装置 |
JP5934569B2 (ja) * | 2012-04-27 | 2016-06-15 | 日立Geニュークリア・エナジー株式会社 | 保護部材付熱交換器 |
DE102013215386A1 (de) * | 2013-08-05 | 2015-02-05 | Behr Gmbh & Co. Kg | Wärmeübertrager aus Aluminium und Verfahren zur Erzeugung einer Oberflächenbeschichtung auf einem Wärmeübertrager aus Aluminium |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20018520U1 (de) * | 2000-10-28 | 2001-02-01 | Pucel Markus | Filterfreie Wärmeaustauscher mit Nano-Technologie |
WO2001040545A1 (fr) * | 1999-12-03 | 2001-06-07 | Caterpillar Inc. | Revetement d'oxyde metallique oleophile hydrophile a motif et methode de fabrication |
DE10045606A1 (de) * | 2000-09-15 | 2002-03-28 | Volkswagen Ag | Oligodynamische Oberflächenbeschichtung auf metallischen Werkstücken und Verfahren zur Herstellung der Beschichtung |
DE102004011544A1 (de) * | 2003-03-31 | 2004-10-14 | Behr Gmbh & Co. Kg | Wärmetauscher und Verfahren zur Oberflächenbehandlung eines solchen |
WO2005052489A2 (fr) * | 2003-11-26 | 2005-06-09 | Behr Gmbh & Co. Kg | Echangeur de chaleur |
EP1562018A1 (fr) * | 2004-02-03 | 2005-08-10 | Siemens Aktiengesellschaft | Tube d'échangeur de chaleur, échangeur de chaleur et son utilisation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19813709A1 (de) * | 1998-03-27 | 1999-09-30 | Inst Neue Mat Gemein Gmbh | Verfahren zum Schutz eines metallischen Substrats vor Korrosion |
JP2000329497A (ja) * | 1999-05-19 | 2000-11-30 | Toyobo Co Ltd | 自動車エアコン熱交換器用フィン |
JP2000329495A (ja) * | 1999-05-21 | 2000-11-30 | Nissan Motor Co Ltd | 空気調和装置用熱交換器およびその表面処理方法 |
US6890640B2 (en) * | 1999-12-03 | 2005-05-10 | Caterpillar Inc | Patterned hydrophilic-oleophilic metal oxide coating and method of forming |
JP2001247822A (ja) * | 2000-03-06 | 2001-09-14 | Kansai Paint Co Ltd | 親水化処理用組成物及び親水化処理方法 |
DE10262308B4 (de) * | 2002-01-08 | 2009-02-05 | Aloys Wobben | Vorrichtung zum Handhaben von Stückgütern |
DE10219127A1 (de) * | 2002-04-29 | 2003-11-06 | Inst Neue Mat Gemein Gmbh | Substrate mit Biofilm-hemmender Beschichtung |
US20060191671A1 (en) * | 2003-03-31 | 2006-08-31 | Behr Gmbh & Co. Kg | Heat exchanger and method for treating the surface of said heat exchanger |
DE10323729A1 (de) * | 2003-05-26 | 2004-12-16 | Institut Für Neue Materialien Gem. Gmbh | Zusammensetzung mit Nichtnewtonschem Verhalten |
DE10359806A1 (de) * | 2003-12-19 | 2005-07-14 | Modine Manufacturing Co., Racine | Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr |
-
2005
- 2005-09-14 DE DE102005043730A patent/DE102005043730A1/de not_active Withdrawn
-
2006
- 2006-09-12 EP EP06805687A patent/EP1926962A1/fr not_active Withdrawn
- 2006-09-12 CN CNA2006800420459A patent/CN101305255A/zh active Pending
- 2006-09-12 WO PCT/EP2006/008851 patent/WO2007031262A1/fr active Application Filing
- 2006-09-12 RU RU2008114316/06A patent/RU2430323C2/ru not_active IP Right Cessation
- 2006-09-12 JP JP2008530399A patent/JP2009508080A/ja active Pending
- 2006-09-12 US US12/066,588 patent/US20080245512A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001040545A1 (fr) * | 1999-12-03 | 2001-06-07 | Caterpillar Inc. | Revetement d'oxyde metallique oleophile hydrophile a motif et methode de fabrication |
DE10045606A1 (de) * | 2000-09-15 | 2002-03-28 | Volkswagen Ag | Oligodynamische Oberflächenbeschichtung auf metallischen Werkstücken und Verfahren zur Herstellung der Beschichtung |
DE20018520U1 (de) * | 2000-10-28 | 2001-02-01 | Pucel Markus | Filterfreie Wärmeaustauscher mit Nano-Technologie |
DE102004011544A1 (de) * | 2003-03-31 | 2004-10-14 | Behr Gmbh & Co. Kg | Wärmetauscher und Verfahren zur Oberflächenbehandlung eines solchen |
WO2005052489A2 (fr) * | 2003-11-26 | 2005-06-09 | Behr Gmbh & Co. Kg | Echangeur de chaleur |
EP1562018A1 (fr) * | 2004-02-03 | 2005-08-10 | Siemens Aktiengesellschaft | Tube d'échangeur de chaleur, échangeur de chaleur et son utilisation |
Non-Patent Citations (1)
Title |
---|
See also references of EP1926962A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102005043730A1 (de) | 2007-03-22 |
CN101305255A (zh) | 2008-11-12 |
JP2009508080A (ja) | 2009-02-26 |
US20080245512A1 (en) | 2008-10-09 |
RU2430323C2 (ru) | 2011-09-27 |
RU2008114316A (ru) | 2009-10-20 |
EP1926962A1 (fr) | 2008-06-04 |
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