WO2004087338A2 - Echangeur thermique et procede de traitement de surface d'un tel echangeur thermique - Google Patents

Echangeur thermique et procede de traitement de surface d'un tel echangeur thermique Download PDF

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Publication number
WO2004087338A2
WO2004087338A2 PCT/EP2004/002336 EP2004002336W WO2004087338A2 WO 2004087338 A2 WO2004087338 A2 WO 2004087338A2 EP 2004002336 W EP2004002336 W EP 2004002336W WO 2004087338 A2 WO2004087338 A2 WO 2004087338A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
exchanger according
nanoparticles
coating
surface 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.)
Ceased
Application number
PCT/EP2004/002336
Other languages
German (de)
English (en)
Other versions
WO2004087338A3 (fr
Inventor
Snjezana Boger
Peter Englert
Klaus Fischle
Oliver Mamber
Sabine Sedlmeir
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Priority to US10/551,183 priority Critical patent/US20060196644A1/en
Priority to EP04718303A priority patent/EP1611407A2/fr
Priority to JP2006504576A priority patent/JP2006522303A/ja
Publication of WO2004087338A2 publication Critical patent/WO2004087338A2/fr
Publication of WO2004087338A3 publication Critical patent/WO2004087338A3/fr
Anticipated expiration legal-status Critical
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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic

Definitions

  • the invention relates to a heat exchanger, in particular for a motor vehicle, according to the preamble of claim 1 and a method for surface treatment of such.
  • the drainage of the condensate from the surface can be supported by a hydrophilic configuration of the surface of the heat exchanger, whereby a thin film of liquid is formed as a result of the hydrophilicity, which can continuously drain off the corrugated fin surface.
  • the corrugated fin surface dries faster. There- the overall performance of the heat exchanger is maintained or improved.
  • EP 115 40 42 A1 discloses an agent for chemical surface treatment and of heat exchangers, silicate particles with an average diameter of 5 to 1000 nm and polyvinyl alcohol in aqueous solution being applied to the surface of heat exchangers. To pre-treat the surface, it is first subjected to acid cleaning and then a conversion layer containing chrome or zirconium is built up. The heat exchanger prepared in this way is connected to the above. coated hydrophilic chemicals so that the surface treated accordingly has hydrophilic properties.
  • the preferably hydrophilic surface coating in particular in the case of a heat exchanger for a motor vehicle, has a gel, the gel advantageously being applied in the case of a sol-gel coating.
  • the gel can contain nanoparticles, coated nanoparticles and / or grafted nanoparticles.
  • a hydrophilic surface coating ensures that a thin, closed liquid film forms on the surface, which can flow continuously from the corrugated fin surface or from the washers / tubes of the heat exchanger. This results in a self-cleaning effect or rinsing effect, as a result of which a permanent accumulation of dust and dirt, and a colonization of microorganisms on the surface of the heat exchanger can be avoided.
  • the corrugated fin surface dries faster.
  • the surface coating has, in addition to or instead of the hydrophilic effect, one or more other advantageous effects, such as, for example, a corrosion-inhibiting or preventing effect.
  • Preferred starting materials in the sol-gel process are alkoxy compounds of elements of main group 3, e.g. Aluminum, boron, indium, and / or elements of the 4th main group, e.g. Silicon, tin, and / or transition metals, preferably the IV subgroup, such as titanium, zirconium, hafnium and / or the V subgroup, such as vanadium, Niobium, tantalum, are used.
  • elements of main group 3 e.g. Aluminum, boron, indium, and / or elements of the 4th main group, e.g. Silicon, tin, and / or transition metals, preferably the IV subgroup, such as titanium, zirconium, hafnium and / or the V subgroup, such as vanadium, Niobium, tantalum, are used.
  • alkoxy compounds part of the hydrolyzable alkoxy radicals is preferably replaced by alkyl and / or aryl radicals, or a mixture of pure alkoxy compounds and alkoxy compounds which partly contain alkyl and / or aryl radicals is provided.
  • These compounds are preferably halogenated, particularly preferably fluorinated.
  • the hydrophilic surface coating preferably has nanoparticles.
  • the nanoparticles preferably consist approximately of 100% or completely of oxides.
  • coated nanoparticles instead of or in addition to oxides, which are provided at least in the core of the coated nanoparticles, other compounds can also be present in the coating.
  • the coating of the nanoparticles can include organic and / or inorganic components, as well as antimicrobial organic and / or inorganic components.
  • the grafted-on nanoparticles are nanoparticles with a core with or made of oxides, which carry side groups. These side groups are chemically bound to the surface of the nanoparticle core, for example via oxygen or nitrogen bridges.
  • bifunctional compounds for example diamines and / or dialcohols, are used. This allows the surface properties properties of a nanoparticle can be varied (eg hydrophobic, hydrophilic, stabilization in the dispersion or solution).
  • a polymer chain with a reactive side chain which contains, for example, an OH or COOH or OR group, or a reactive group which has not reacted in the polymer network, for example OH or COOH or OR, can be grafted onto the nanoparticle.
  • the nanoparticles preferably contain, for the sake of simplicity, to be understood below as meaning coated and / or grafted-on nanoparticles, unless expressly stated otherwise, oxides and / or oxide hydrates and / or nitrides and / or carbides.
  • Oxides of the elements of the main II group and / or the III main group and / or oxides of germanium, tin, lead and / or oxides of the transition metals, preferably the IV and V subgroup, and / or oxides of zinc and / or are preferably / or provided by cerium.
  • the oxide hydrates, nitrides and carbides preferably consist of elements from the III main group and / or IV main group and / or from transition metals, preferably from the IV and V subgroup, and / or from zinc and / or from cerium.
  • the nanoparticles coated nanoparticles and the grafted nanoparticles Preferably have an average diameter of 1 to 1000 nm, in particular between 50 and 500 nm.
  • the surface coating preferably has antimicrobial components. These can be part of the nanoparticles, for example in the case of grafted or coated nanoparticles, or they can be contained in the remaining part of the surface coating. Such additives improve the antimicrobial effect of the surface coating and prevent a settlement of microorganisms on the surface of the heat exchanger or at least hinder such.
  • the surface coating is preferably applied by dipping, flooding or spraying.
  • Pre-treatment is preferably carried out by means of acidic or alkaline pickling with subsequent pickling and / or conversion treatment. This pretreatment is also preferably carried out by dipping, flooding or spraying.
  • the conversion treatment serves to build up passivation layers that form a very firm bond with the surface, for example by forming mixed oxides. Such a passivation layer prevents corrosion attack, among other things.
  • Drying can take place after the pretreatment and a drying process is necessary after the actual surface coating.
  • Fig. 1 shows a section through the near-surface area of a
  • Fig. 2 shows a section through the near-surface area of a
  • Heat exchanger with a B ⁇ 7 layering according to the invention according to a second embodiment.
  • FIG. 1 shows the near-surface area of a corrugated fin plate 1 of an aluminum heat exchanger according to a first exemplary embodiment, which is provided with a hydrophilic surface coating 2.
  • This surface coating 2 is formed from a sol which contains nanoparticles 3 made of essentially pure aluminum oxide.
  • the nanoparticles 3 have an average diameter of between 10 and 100 nm and are relatively evenly distributed in the entire surface coating 2.
  • the sol has alkoxy compounds of aluminum, a mixture of series alkoxy compounds and alkoxy compounds in which part of the hydrolyzable alkoxy radicals has been replaced by alkyl radicals being used.
  • the surface coating 2 is applied after surface cleaning with an acidic stain by immersion in a colloidal sol solution in which aluminum oxide nanoparticles are dispersed. A drying process is then carried out.
  • FIG. 2 shows a region near the surface of a corrugated rib plate 11 of a heat exchanger according to a second exemplary embodiment.
  • a conversion layer 14 is provided between a hydrophilic surface coating 12, which contains nanoparticles 13.
  • the conversion layer 14 has, inter alia, mixed oxides of aluminum and zirconium.
  • the nanoparticles 13 are so-called grafted nanoparticles which carry side groups.
  • Is 13 contain the nanoparticle 'kel an oxide-containing core of bifunctional organic compounds which are chemically bonded on the surface of the nanoparticle core, surrounded.
  • the bifunctional organic compounds have, among other things, antimicrobial side groups.
  • the actual surface coating 12 consists, as in the first embodiment, of a gel.
  • the oxide-containing core of the grafted-on nanoparticles 13 essentially consists of zirconium dioxide and titanium dioxide.
  • the surface for the application of the actual surface coating 13 this is provided with the mixed oxides of aluminum and zirconium-containing conversion layer 14.
  • a chemical containing zirconium is applied by means of dipping, and mixed oxides of aluminum and zirconium are formed, so that a very firm bond is formed with the surface.
  • the surface coating 12 is applied by dipping with a sol-nanoparticle dispersion containing the nanoparticles 13. Another drying process is then carried out.
  • the surface is coated with a sol which contains no nanoparticles.
  • the sol has alkoxy compounds of silicon, a mixture of pure alkoxy compounds and alkoxy compounds in which some of the hydrolyzable alkoxy radicals have been replaced by alkyl radicals being used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un échangeur thermique comportant un revêtement de surface hydrophile (12) contenant un gel fabriqué au moyen d'un procédé sol-gel.
PCT/EP2004/002336 2003-03-31 2004-03-08 Echangeur thermique et procede de traitement de surface d'un tel echangeur thermique Ceased WO2004087338A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/551,183 US20060196644A1 (en) 2003-03-31 2004-03-08 Heat exchanger and method for treating the surface of said heat exchanger
EP04718303A EP1611407A2 (fr) 2003-03-31 2004-03-08 Echangeur thermique et procede de traitement de surface d'un tel echangeur thermique
JP2006504576A JP2006522303A (ja) 2003-03-31 2004-03-08 熱交換機およびその表面処理方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314775 2003-03-31
DE10314775.6 2003-03-31

Publications (2)

Publication Number Publication Date
WO2004087338A2 true WO2004087338A2 (fr) 2004-10-14
WO2004087338A3 WO2004087338A3 (fr) 2005-06-09

Family

ID=32980909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/002336 Ceased WO2004087338A2 (fr) 2003-03-31 2004-03-08 Echangeur thermique et procede de traitement de surface d'un tel echangeur thermique

Country Status (6)

Country Link
US (1) US20060196644A1 (fr)
EP (1) EP1611407A2 (fr)
JP (1) JP2006522303A (fr)
CN (1) CN1768245A (fr)
DE (1) DE102004011544A1 (fr)
WO (1) WO2004087338A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058644A1 (fr) * 2004-12-01 2006-06-08 Klingenburg Gmbh Procede de production d'une couche de fond sur des feuillards ou des bandes d'aluminium
US20080245512A1 (en) * 2005-09-14 2008-10-09 Behr Gmbh & Co., Kg Heat Exchanger, In Particular Exhaust Gas Heat Exchanger

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1658157B1 (fr) 2003-06-25 2016-03-23 MAHLE Behr GmbH & Co. KG Agent fondant pour souder des elements metalliques
WO2006029616A1 (fr) * 2004-09-17 2006-03-23 Peter Vinz Paroi thermoconductrice a revetements superficiels nanostructures multifonctionnels
DE102005023771A1 (de) * 2005-05-19 2006-11-23 R. Scheuchl Gmbh Wärmeaustauscher
DE102005035704A1 (de) * 2005-07-27 2007-02-01 Behr Gmbh & Co. Kg Zu verlötende Oberfläche
DE102006006770A1 (de) * 2006-02-13 2007-08-23 Behr Gmbh & Co. Kg Leiteinrichtung, insbesondere Wellrippe, für einen Wärmeübertrager
EP1953488A1 (fr) * 2007-02-02 2008-08-06 Siemens Aktiengesellschaft Refroidisseur par évaporation et son utilisation tout comme installation de turbine à gaz dotée d'un refroidisseur par évaporation
CN101556126B (zh) * 2008-04-09 2011-08-17 中国科学院化学研究所 具有高热传导效率和抗垢能力的膜及其制备方法
DE102009013054A1 (de) * 2009-03-16 2010-09-23 Behr Gmbh & Co. Kg Wärmetauscher
US9701177B2 (en) * 2009-04-02 2017-07-11 Henkel Ag & Co. Kgaa Ceramic coated automotive heat exchanger components
KR20120089662A (ko) * 2009-09-02 2012-08-13 바스프 에스이 연접을 이용하여 생성된 다중 에멀젼
US20120211084A1 (en) 2009-09-02 2012-08-23 President And Fellows Of Harvard College Multiple emulsions created using jetting and other techniques
US8993070B2 (en) * 2009-09-28 2015-03-31 Carrier Corporation Dual powder coating method for aluminum substrates
SA111320468B1 (ar) * 2010-05-26 2015-04-01 الفا لافال كوربوريت ايه بي ألواح مبادل حراري ذات خصائص مضادة للانسداد
EP2714254B1 (fr) 2011-05-23 2017-09-06 President and Fellows of Harvard College Génération d'émulsions et, notamment, d'émulsions multiples
BR112014000141A2 (pt) 2011-07-06 2017-06-13 Harvard College emulsões múltiplas e técnicas para a formação de emulsões múltiplas
EP2786086A1 (fr) 2011-11-28 2014-10-08 Alfa Laval Corporate AB Échangeur de chaleur spiral avec propriétés anti-encrassement
EP2597412B1 (fr) 2011-11-28 2014-05-28 Alfa Laval Corporate AB Échangeur thermique à plaques de type bloc doté de propriétés antisalissures
CN104748604B (zh) * 2015-03-26 2016-07-13 中国科学院工程热物理研究所 一种带有疏水带的珠状凝结强化换热表面结构
WO2018067679A1 (fr) * 2016-10-04 2018-04-12 3M Innovative Properties Company Procédés de fabrication et d'utilisation d'échangeurs thermiques
EP3657118B1 (fr) * 2017-07-19 2023-12-06 LG Electronics Inc. Échangeur de chaleur
CN111412768B (zh) * 2019-01-07 2025-02-07 浙江三花智能控制股份有限公司 换热器及其制造方法
CN111692741B (zh) * 2019-08-01 2021-09-28 浙江三花智能控制股份有限公司 换热器及其制备方法、换热系统
CN110763066B (zh) * 2019-10-18 2020-09-29 浙江大学 余热锅炉换热管
JP2021161447A (ja) * 2020-03-30 2021-10-11 三菱アルミニウム株式会社 親水性皮膜の製造方法とプレコートフィンの製造方法と熱交換器の製造方法
DE102020112185A1 (de) 2020-05-06 2021-11-11 Volkswagen Aktiengesellschaft Wärmeübertrager für ein Fahrzeug

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JPH07251130A (ja) * 1994-03-11 1995-10-03 Kansai Paint Co Ltd 撥水性塗膜形成方法
JP3594972B2 (ja) * 1996-03-28 2004-12-02 日本軽金属株式会社 水性親水性皮膜処理剤及びその処理剤を使用する熱交換器用プレコートフィン材の製造方法
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JP3474866B2 (ja) * 2000-05-12 2003-12-08 日本ペイント株式会社 熱交換器の親水化処理方法および親水化処理された熱交換器
DE10039404A1 (de) * 2000-08-06 2002-07-25 Georg Wagner Verfahren zur Herstellung von pigmentierten Zusammensetzungen nach dem Sol-Gel-Verfahren usw.
DE10051486A1 (de) * 2000-10-17 2002-04-25 Henkel Kgaa Haftvermittler für Lacke und Klebstoffe auf Metallen
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058644A1 (fr) * 2004-12-01 2006-06-08 Klingenburg Gmbh Procede de production d'une couche de fond sur des feuillards ou des bandes d'aluminium
US20080245512A1 (en) * 2005-09-14 2008-10-09 Behr Gmbh & Co., Kg Heat Exchanger, In Particular Exhaust Gas Heat Exchanger
JP2009508080A (ja) * 2005-09-14 2009-02-26 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器、特に排気熱交換器

Also Published As

Publication number Publication date
EP1611407A2 (fr) 2006-01-04
US20060196644A1 (en) 2006-09-07
JP2006522303A (ja) 2006-09-28
CN1768245A (zh) 2006-05-03
DE102004011544A1 (de) 2004-10-14
WO2004087338A3 (fr) 2005-06-09

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