CN101305255A - Heat exchanger, in particular exhaust gas heat exchanger - Google Patents
Heat exchanger, in particular exhaust gas heat exchanger Download PDFInfo
- Publication number
- CN101305255A CN101305255A CNA2006800420459A CN200680042045A CN101305255A CN 101305255 A CN101305255 A CN 101305255A CN A2006800420459 A CNA2006800420459 A CN A2006800420459A CN 200680042045 A CN200680042045 A CN 200680042045A CN 101305255 A CN101305255 A CN 101305255A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- coating
- manufacture method
- coating comprises
- described coating
- 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.)
- Pending
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
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
The invention relates to a heat exchanger, in particular an exhaust gas heat exchanger, having at least one surface which is impinged on by a medium, in particular exhaust gas, is made from metal, in particular aluminium or stainless steel, and is provided with a coating. In order to improve the properties of the coating, according to the invention, the coating comprises a coating material based on nanotechnology.
Description
Technical field
The present invention relates to a kind of heat exchanger, particularly relate to a kind of heat exchanger that has at least one metal surface, especially aluminium or high-quality steel surface, medium is its surface of backblast especially, and the surface of this heat exchanger has coating.The invention still further relates to a kind of method of making above-mentioned heat exchanger.
Background technology
In exhaust-heat exchanger, mainly come from the waste gas of diesel engine, with moisture and temperature acting in conjunction, make used metal be subjected to corrosion failure.Can adopt heat-resisting paint for preventing corrosion.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of heat exchanger and realize above-mentioned heat exchanger.Particularly a kind of at least one metal surface that has of this heat exchanger, especially the heat exchanger on the surface of aluminium or high-quality steel, medium is its surface of backblast especially, and the surface of this heat exchanger has coating, and described coating has more excellent characteristic than traditional coating.
The object of the present invention is achieved like this: a kind of heat exchanger, particularly a kind of at least one metal surface that has, especially the heat exchanger on the surface of aluminium or high-quality steel, medium is its surface of backblast especially, the surface of this heat exchanger has coating, described coating comprises a kind of coating material based on nanometer technology, and preferred, coating comprises at least a nano material or nanostructured.Coating is transparent, and has extraordinary chemical corrosion resistance.
A preferred embodiment of heat exchanger of the present invention is characterised in that described coating comprises a kind of key component of being made up of organic principle and inorganic constituents.Under the effect of crosslinking temperature, can in relative broad range, define and change the properties of materials of coating.
Another preferred embodiment of heat exchanger of the present invention is characterised in that coating contains silicon.Preferably, by using suitable catalyst, when decomposing ethanol, hydrolysis organic (alkoxyl) silane on purpose.
Another preferred embodiment of heat exchanger of the present invention is characterized in that coating comprises titanium, zirconium, aluminium, magnesium, zinc, and/or calcium.Different materials constitutes specific inorganic network structure.
In the manufacture method of above-mentioned heat exchanger, particularly exhaust-heat exchanger, aforesaid purpose is achieved in that coating is to be produced by the process that colloidal sol and gel state are changed mutually.Change in the process of gel at colloidal sol, produce nano material.By hydrolysis and concentration response, produce a kind of three-dimensional netted thing that the molecule interlayer is arranged in the liquid, heat treatment process makes gel further be converted into nano material or nanostructured.
A preferred embodiment of manufacture method of the present invention is characterised in that at least a colloidal sol is used to the surface that will apply.The surface that applies can impregnated in the colloidal sol in any suitable manner.
Another preferred embodiment of manufacture method of the present invention is characterised in that colloidal sol is treated, and preferred processing method is heat treatment.
Another preferred embodiment of manufacture method of the present invention comprises the steps: to make the heat exchanger that needs to apply to be immersed in the coating material, then it is drained; Heat exchanger after draining heats in a drying oven.The heat exchanger that need apply is forced to be immersed in the coating material, and then drain.Preferably, again heat exchanger is hung,, and can not form undesired accumulation in inside so that all excess coating materials can flow out.The drop matter that sticks to heat exchanger outlet can be removed by suitable mode, for example can remove by compressed air or electrostatic drop removal device.
Describe different embodiment below in detail, further describe advantage of the present invention, feature and detailed description.Here each technical characterictic of mentioning of claim and specification or separately or combination arbitrarily all has essential meaning for purposes of the invention.
The present invention relates to a kind of heat exchanger, make by aluminium or high-quality steel.This heat exchanger has a cavity, and waste gas flows through this cavity when heat exchanger operates.Described cavity scribbles the coating material based on nanometer technology.This coating material main component comprises inorganic constituents and organic principle.Under the effect of crosslinking temperature, can in relative broad range, limit the characteristic of coating.When furnace temperature was high, the more a high proportion of content of organic matter was discharged from, and that is to say to have crosslinkedly greatly, so the erosion resisting of coating is enhanced.When furnace temperature was low, the ratio of the content of organic matter was bigger, that is to say, it is better that the ductility of coating becomes.
According to one aspect of the present invention, the heat exchanger that need apply is forced to be immersed in the coating material, and then drain.Afterwards heat exchanger is hung,, and can not form accumulation in inside so that the excess coating material drains fully.The drop matter that sticks to outlet can be removed by suitable mode, for example can remove by compressed air or electrostatic drop removal device.Exhaust-heat exchanger is by a drying oven then.
Here, coating produces by a sol-gel process, for example, and so-called ORMOCER coating.ORMOCER is meant a trade mark at the Fraunhofer Gesellschaft of Munich development and application research.In order to obtain coating, by using suitable catalyst, make the organosilan hydrolysis, thereby make as methyl alcohol, alcohol such as ethanol decomposes.Concentration response subsequently will cause the organically-modified formation of inorganic oxide structure.For inorganic netted modification, silicon also can the part by other element substitutions, particularly titanium, zirconium or aluminium element.In addition, magnesium, zinc, calcium may be incorporated in together.Water-soluble alcohol colloidal sol is applied on the heat exchanger that will apply in the dip-coating process, again through heat treatment.Form cross-linked polymeric layer like this.
Coating can also prevent dust, particulate, the adhesion of cigarette ash and oil film simultaneously except anticorrosion and waterproof effect.When using " ORMOCER " coating, the composition of fluorosilicone accounts for 0.1 to 10% of ORMOCER coating, and preferably 0.5 to 5%, particularly contain at 1 to 2% o'clock, the effect of this oleophobic just can realize.The alkoxy silane that has a highly fluorinated alkyl chain by interpolation can obtain the binder course of the characteristic of hydrophobic simultaneously and oleophobic.Here by F13 (CF
3-(CF
2)
5-) and F16 (CF
2H-(CF
2)
7-) silane can obtain significantly useful effect.
Claims (9)
1. a heat exchanger comprises a kind of heat exchanger that has at least one metal surface, especially aluminium or high-quality steel surface, the surface of this heat exchanger has coating, the medium that comprises waste gas impacts this surface, it is characterized in that, described coating comprises a kind of coating material based on nanometer technology.
2. heat exchanger as claimed in claim 1 is characterized in that, described coating comprises a kind of main component of being made up of organic component and inorganic composition.
3. heat exchanger as claimed in claim 1 or 2 is characterized in that described coating comprises silicon.
4. the described heat exchanger of each claim as described above is characterized in that described coating comprises titanium, zirconium, and/or aluminium.
5. the described heat exchanger of each claim as described above is characterized in that described coating comprises magnesium, zinc, and/or calcium.
6. an aforementioned manufacture method that comprises the heat exchanger of exhaust-heat exchanger is characterized in that described coating is made by sol-gel process.
7. manufacture method as claimed in claim 6 is characterized in that at least a colloidal sol is coated on surface to be coated.
8. manufacture method as claimed in claim 7 is characterized in that, described colloidal sol is processed and form a kind of cross-linked polymeric layer.
9. as each described manufacture method in the claim 6 to 8, it is characterized in that, comprise the steps:
A) heat exchanger that will apply is immersed in the coating material, drains then;
B) heat exchanger that has drained is heated in drying oven, and/or a thermal current, particularly thermal air current over-heat-exchanger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005043730.3 | 2005-09-14 | ||
| DE102005043730A DE102005043730A1 (en) | 2005-09-14 | 2005-09-14 | Heat exchanger, in particular exhaust gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101305255A true CN101305255A (en) | 2008-11-12 |
Family
ID=37507708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800420459A Pending CN101305255A (en) | 2005-09-14 | 2006-09-12 | Heat exchanger, in particular exhaust gas heat exchanger |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080245512A1 (en) |
| EP (1) | EP1926962A1 (en) |
| JP (1) | JP2009508080A (en) |
| CN (1) | CN101305255A (en) |
| DE (1) | DE102005043730A1 (en) |
| RU (1) | RU2430323C2 (en) |
| WO (1) | WO2007031262A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008033222A1 (en) | 2008-07-15 | 2010-01-21 | Behr Gmbh & Co. Kg | Producing a part of a heat exchanger comprising aluminum and/or aluminum alloy and having a corrosion protected surface, comprises applying zinc or zinc-containing layer to the surface or part of the surface |
| DE102008062705A1 (en) | 2008-12-18 | 2010-06-24 | Behr Gmbh & Co. Kg | Coating method and coating apparatus for manufacturing a component and heat exchangers and use of the heat exchanger |
| JP5218525B2 (en) * | 2010-11-09 | 2013-06-26 | 株式会社デンソー | Equipment through which heat transport fluid flows |
| JP5934569B2 (en) * | 2012-04-27 | 2016-06-15 | 日立Ｇｅニュークリア・エナジー株式会社 | Heat exchanger with protective member |
| DE102013215386A1 (en) * | 2013-08-05 | 2015-02-05 | Behr Gmbh & Co. Kg | Heat exchanger made of aluminum and method for producing a surface coating on a heat exchanger made of aluminum |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813709A1 (en) * | 1998-03-27 | 1999-09-30 | Inst Neue Mat Gemein Gmbh | Process for protecting a metallic substrate from corrosion |
| JP2000329497A (en) * | 1999-05-19 | 2000-11-30 | Toyobo Co Ltd | Fin for heat exchanger in car air conditioner |
| JP2000329495A (en) * | 1999-05-21 | 2000-11-30 | Nissan Motor Co Ltd | Heat exchanger for air conditioner and surface treating method therefor |
| AU1461501A (en) * | 1999-12-03 | 2001-06-12 | Caterpillar Inc. | Patterned hydrophilic-oleophilic metal oxide coating and method of forming |
| US6890640B2 (en) * | 1999-12-03 | 2005-05-10 | Caterpillar Inc | Patterned hydrophilic-oleophilic metal oxide coating and method of forming |
| JP2001247822A (en) * | 2000-03-06 | 2001-09-14 | Kansai Paint Co Ltd | Composition and method for treatment for imparting hydrophilic property |
| DE10045606A1 (en) * | 2000-09-15 | 2002-03-28 | Volkswagen Ag | Oligodynamic coating for the inner metallic surfaces of automobile air conditioners comprises matrix based on (hetero)-polysiloxanes, nano-scale heavy metal particles and an optional corrosion inhibitor |
| DE20018520U1 (en) * | 2000-10-28 | 2001-02-01 | Pucel Markus | Filter-free heat exchangers with nano-technology |
| DE10262308B4 (en) * | 2002-01-08 | 2009-02-05 | Aloys Wobben | Device for handling piece goods |
| DE10219127A1 (en) * | 2002-04-29 | 2003-11-06 | Inst Neue Mat Gemein Gmbh | Substrates with a biofilm-inhibiting coating |
| DE102004011544A1 (en) * | 2003-03-31 | 2004-10-14 | Behr Gmbh & Co. Kg | Heat exchanger for a vehicle comprises a hydrophilic surface coating consisting of a gel produced by a sol-gel method |
| EP1610911B1 (en) * | 2003-03-31 | 2016-05-11 | MAHLE Behr GmbH & Co. KG | Heat exchanger and method for treating the surface of said heat exchanger |
| DE10323729A1 (en) * | 2003-05-26 | 2004-12-16 | Institut Für Neue Materialien Gem. Gmbh | Composition with non-Newtonian behavior |
| DE10355833A1 (en) * | 2003-11-26 | 2005-06-23 | Behr Gmbh & Co. Kg | heat exchangers |
| DE10359806A1 (en) * | 2003-12-19 | 2005-07-14 | Modine Manufacturing Co., Racine | Heat exchanger with flat tubes and flat heat exchanger tube |
| EP1562018A1 (en) * | 2004-02-03 | 2005-08-10 | Siemens Aktiengesellschaft | Heat exchanger tube, heat exchanger and its use |
-
2005
- 2005-09-14 DE DE102005043730A patent/DE102005043730A1/en not_active Withdrawn
-
2006
- 2006-09-12 US US12/066,588 patent/US20080245512A1/en not_active Abandoned
- 2006-09-12 RU RU2008114316/06A patent/RU2430323C2/en not_active IP Right Cessation
- 2006-09-12 WO PCT/EP2006/008851 patent/WO2007031262A1/en active Application Filing
- 2006-09-12 EP EP06805687A patent/EP1926962A1/en not_active Withdrawn
- 2006-09-12 CN CNA2006800420459A patent/CN101305255A/en active Pending
- 2006-09-12 JP JP2008530399A patent/JP2009508080A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1926962A1 (en) | 2008-06-04 |
| RU2430323C2 (en) | 2011-09-27 |
| RU2008114316A (en) | 2009-10-20 |
| WO2007031262A1 (en) | 2007-03-22 |
| JP2009508080A (en) | 2009-02-26 |
| US20080245512A1 (en) | 2008-10-09 |
| DE102005043730A1 (en) | 2007-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081112 |