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WO2002090859A1 - Dispositif echangeur de chaleur pourvu d'une paroi revetue superficiellement et separant le fluide 1 du fluide 2 - Google Patents

Dispositif echangeur de chaleur pourvu d'une paroi revetue superficiellement et separant le fluide 1 du fluide 2 Download PDF

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Publication number
WO2002090859A1
WO2002090859A1 PCT/DE2002/001669 DE0201669W WO02090859A1 WO 2002090859 A1 WO2002090859 A1 WO 2002090859A1 DE 0201669 W DE0201669 W DE 0201669W WO 02090859 A1 WO02090859 A1 WO 02090859A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
wall
exchanger device
coated
compound
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/DE2002/001669
Other languages
German (de)
English (en)
Inventor
Milan Lazarov
Isabella Mayer
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.)
TINOX GmbH
Original Assignee
TINOX GmbH
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 TINOX GmbH filed Critical TINOX GmbH
Publication of WO2002090859A1 publication Critical patent/WO2002090859A1/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • 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
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic
    • 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
    • F28F2245/04—Coatings; Surface treatments hydrophobic

Definitions

  • the present invention relates to a heat exchanger device having a surface-coated wall which separates medium 1 from medium 2, the surface of the wall being at least partially coated with a thin layer which comprises at least one compound of the elements titanium, zirconium and / or hafnium and / or alloys thereof with nitrogen and / or oxygen and / or carbon and / or fluorine.
  • the present invention further relates to a method for producing the surface-coated heat exchanger wall and the use of the heat exchanger device.
  • the invention relates essentially to a surface-coated heat exchanger wall of a heat exchanger device for transferring heat from a warmer medium to a colder one.
  • a medium is understood to be any gas or liquid.
  • the heat exchanger wall is, for example, the walls of a plate which is connected to a heat transfer tube and is used, for example, in condensers of refrigeration systems, air separation systems, drying or humidification systems or moist air stills.
  • the object of the present invention is to provide a heat exchanger whose surface is modified in such a way that the efficiency of the heat exchanger is improved, corrosion problems when using corrosive media are reduced and the surface for use in the production of drinking water is food-safe.
  • the present invention relates to a heat exchanger device with a surface-coated wall which separates medium 1 from medium 2, the surface of the wall being at least partially coated with a thin layer which comprises at least one compound of the elements titanium, zirconium and / or hafnium and / or alloys thereof with nitrogen and / or oxygen and / or carbon and / or fluorine contains.
  • fluorine is also present in the compound for the surface coating, the ratio of the fluorine atoms to the carbon atoms contained therein being 0.05 to 2.05.
  • Very preferred compounds are TiNO t ICQ, 5 F 0, 01 , TiNOi, 1C0, 5F0, 1 / TiNOi, ⁇ C 0 , 5 ⁇ 0, 15 / TiNOi, ⁇ C 0 , 5 ⁇ 0, 3, TiNOa., ⁇ C 0 , 5F0,, and TiOi, 4 C 0 , 5F0, 5 •
  • the hydrophilicity / hydrophobicity of the surface coating can be controlled particularly easily by means of the fluorine content.
  • a higher fluorine content thus creates a more hydrophobic surface, which can be advantageous for applications in refrigeration technology.
  • more hydrophilic surfaces are more advantageous, which can be caused by a low fluorine content or the omission of fluorine.
  • the fluorine-containing layers preferably have CF and / or CF2 groups which in the ESCA spectrum lead to maxima at 290 ⁇ 1 eV
  • the surface coating contains CF and CF2 groups, which lead to an intensity ratio of the two maxima (at 290 and 293 eV) of 0.5 to 8 in the ESCA spectrum.
  • the coating is located as a thin layer on a substrate suitable as a heat exchanger wall.
  • a substrate suitable as a heat exchanger wall.
  • This can be made of plastic, e.g. Polypropylene, polyester, polyamide, polyurethane, polyethylene, polytetrafluoroethylene or from a metal such as copper, aluminum, nickel, chromium, titanium, vanadium, niobium, iron or their mixtures or alloys.
  • the coating formed as a thin layer is preferably applied to a structured surface.
  • the thickness of the coating is preferably in the range from 20 nm to 2 mm, more preferably in the range from 200 nm to 1.5 mm and very preferably in the range from 500 nm to 1 mm.
  • the coating can completely or partially cover the surface of the heat exchanger wall.
  • the heat exchanger wall is preferably coated with at least 85% of the coating.
  • an intermediate layer is provided between the heat exchanger wall and the coating, which brings about a higher adhesive strength.
  • This intermediate layer preferably consists of a thermally conductive metal, preferably chromium, nickel, titanium, molybdenum or vanadium.
  • the heat exchanger wall is preferably coated in a vacuum coating chamber, in which titanium, zirconium and / or hafnium are evaporated by means of electron beam evaporation and the elements nitrogen, oxygen, carbon and / or fluorine are added in gaseous form by means of “mass flow controler”.
  • a particularly preferred method is the introduction of the base material of the heat exchanger (plastic or metal) in the form of tape material, which is in rolls, in a vacuum chamber.
  • This vacuum chamber (Fig. 11) consists of a winding mechanism through which the strip material can be rewound from one roll to another in a vacuum.
  • the winding mechanism has at least one, preferably two, deflection rollers through which the strip material can be heated or cooled.
  • the heating rollers are preferably heated by infrared emitters, the cooling rollers are preferably cooled by thermal oil.
  • the strip material is exposed to steam between the deflection rollers.
  • This steam is generated in a vacuum of approx. 10–5 mBar to which the non-metals of the compound are added as gases, so that the process takes place at a process pressure of approx. 0.1 to 3 * 10 " mBar.
  • the gas mixture the supplied non-metals are preferably controlled by means of a “mass flow controler.” It may be advantageous for the process to add a noble gas, such as argon, for example.
  • the metals are preferably vaporized from crucibles by means of electron beam guns. The metals in these are preferred Crucibles mixed in granular form, in the ratio as they are later present in the connection on the strip material.
  • Preferred strip speeds are 1 to 60 m / min, particularly preferably speeds of 6 to 25 m / min.
  • the strip is heated by means of the heating rollers heated to temperatures of 150 ° C to 450 ° C.
  • temperatures of 150 ° C to 450 ° C For copper, a temperature range of 350 ° C to 420 ° C has proven to be particularly suitable other temperatures in the range of 20 ° C to 80 ° C to choose.
  • the coated heat exchanger wall can be used in the context of a heat exchanger device in condensers of refrigeration systems, air separation systems, drying or humidification systems or moist air stills, the use in moist air stills and refrigeration systems being preferred.
  • the surface coating is corrosion-proof and food-safe and that after evaporation no individual droplets are deposited, but a thin one continuous film is created, which contributes to the efficiency of the still.
  • Hydrophilic surfaces are advantageous, so compounds with little or no fluorine and a low carbon content should preferably be selected.
  • the surface coating is hydrophobic, corrosion-resistant and food-safe has an advantageous effect.
  • warm, often humid air is cooled.
  • the excess water vapor condenses on the heat exchanger surfaces and reduces the efficiency of the heat exchanger.
  • a hydrophobic surface leads to the formation of individual droplets that drip quickly, which is conducive to the efficiency of the air conditioning system, especially in humid climates. This process and the improved efficiency through these connections is e.g. B. can be seen in Figure 10.
  • the condensate does not need to be treated further, since no contamination occurs on the surface.
  • Hydrophobic surfaces are preferably realized using compounds with a high fluorine content.
  • Fig. 1 to Fig. 6 ESCA spectra of various coated heat exchangers.
  • Fig.l heat exchanger coated with i t QOI, ICQ, 5 F 0, 0 1
  • Fig. 2 Heat exchanger coated with TiNi, 0 ° l, l c 0 , 5 F 0, 1
  • Fig. 3 Heat exchanger coated with TiNi, 0 ° 1, l c o, 5 F o, 15
  • Fig. 4 Heat exchanger coated with iN, 0O1, l ⁇ o, 5 o, 3
  • Fig. 5 Heat exchanger coated with TiNi, 0 ° l, l c 0, 5 F o
  • 4 Fig. 6 Heat exchanger coated with OK, 4 C 0 , 5 F 0 , 5
  • Fig. 9 Schematic representation of a humid still
  • Fig. 10 Thermal conductivity of a coated heat exchanger used in an air conditioning system: The graphic shows the quotients of the thermal conductivity of various coated heat exchangers for an uncoated heat exchanger.
  • the operating point of the air conditioning system is the cooling and dehumidification of air with 28 ° C, 95% air humidity on the inlet side and 18 ° C, 20% air humidity on the outlet side.
  • the coating consists of: a) TiNi, 0 O 1 , 1 b) TiNi, 0 O ⁇ , ⁇ C 0f 5 0, 01 C) TiNi, 0 ⁇ , ⁇ C 0 , 5 F 0, 1 d) TiNi, 0 O ⁇ , ⁇ C 0 , 5 F 0, 15 e) ' TiN ⁇ , 0 O ⁇ , ⁇ C 0 , 5 F 0, 3 f) TiNi, 0 O ⁇ , ⁇ C 0 , 5 0 , 4 Fig. 11: Cons drawing of the coating system
  • the heat exchangers are manufactured as follows: 0.3mm thick copper foils are coated in a vacuum coating chamber. Here titanium is evaporated by means of electron beam evaporation and N 2 , O 2 , CH 4 , CO 2 and fluorine are fed into the vacuum chamber. By controlling the composition of the gas supplied, the chemical composition of the coating can be controlled. The titanium and the gases condense to a solid coating on the copper strip. In a subsequent step, the copper strip is cut to the size of the heat exchanger. Two of these blanks are placed on top of each other with the coated side facing outwards. Before that, solder and a tube are inserted between the plates. The almost finished heat exchanger is soldered in a soldering oven.
  • the tape to be coated runs 40 ⁇ 5cm over the electron beam evaporators, in which titanium, zirconium and hafnium are evaporated.
  • Substrate temperature (temperature of the belt): 350 ⁇ 30 ° C total gas pressure: 10 hPa
  • Substrate temperature (temperature of the belt): 350 ⁇ 30 ° C total gas pressure: 10 " hPa Gases supplied: N 2 , CO 2 , F in the ratio N 2 / CO 2 / F:
  • Substrate temperature (temperature of the belt): 350 + 30 ° C
  • Substrate temperature (temperature of the belt): 350 + 30 ° C
  • Substrate temperature (temperature of the belt): 350 ⁇ 30 ° C
  • Substrate temperature (temperature of the belt): 350 ⁇ 30 ° C
  • Heat exchangers with the coatings a-f are measured in FIG. 10.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un dispositif échangeur de chaleur pourvu d'une paroi revêtue superficiellement qui sépare le fluide 1 du fluide 2. La surface de ladite paroi est recouverte, au moins partiellement, d'une couche mince qui contient au moins un composé des éléments titane, zirconium et/ou hafnium et/ou d'alliages de ceux-ci avec de l'azote et/ou de l'oxygène et/ou du carbone et/ou du fluor. L'invention concerne en outre un procédé de production de cette paroi d'échangeur de chaleur revêtue superficiellement, ainsi que l'utilisation du dispositif échangeur de chaleur.
PCT/DE2002/001669 2001-05-08 2002-05-08 Dispositif echangeur de chaleur pourvu d'une paroi revetue superficiellement et separant le fluide 1 du fluide 2 Ceased WO2002090859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10122329.3 2001-05-08
DE2001122329 DE10122329B4 (de) 2001-05-08 2001-05-08 Wärmetauscher-Vorrichtung mit einer oberflächenbeschichteten Wand, die Medium 1 von Medium 2 trennt

Publications (1)

Publication Number Publication Date
WO2002090859A1 true WO2002090859A1 (fr) 2002-11-14

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PCT/DE2002/001669 Ceased WO2002090859A1 (fr) 2001-05-08 2002-05-08 Dispositif echangeur de chaleur pourvu d'une paroi revetue superficiellement et separant le fluide 1 du fluide 2

Country Status (2)

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DE (1) DE10122329B4 (fr)
WO (1) WO2002090859A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011065906A3 (fr) * 2009-11-24 2011-07-28 Air To Air Sweden Ab Procédé de fabrication de multiples canaux destinés à être utilisés dans un dispositif pour l'échange de solutés ou de chaleur entre des écoulements de fluide
US9683789B2 (en) 2009-11-24 2017-06-20 Air To Air Sweden Ab Method of producing multiple channels for use in a device for exchange of solutes or heat between fluid flows
EP3222931A1 (fr) * 2016-03-22 2017-09-27 POLYCSP ApS Revêtement sélectif solaire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141525B4 (de) * 2001-08-24 2009-12-31 ZAE Bayern Bayerisches Zentrum für angewandte Energieforschung eV Stoff- und Wärmeaustauschreaktor
DE102004024794B4 (de) * 2004-05-17 2008-12-04 Technaflon Ag Wärmetauschervorrichtung
JP2008514897A (ja) * 2004-09-30 2008-05-08 ベール ゲーエムベーハー ウント コー カーゲー 熱伝達体および過給空気を冷却する方法

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GB546940A (en) * 1941-04-07 1942-08-06 Foote Mineral Co Improvements in or relating to condensers
DE2600821A1 (de) 1975-01-13 1976-07-15 Hitachi Cable Waermetauscherwand fuer einen kondensator und verfahren zu ihrer herstellung
DE2650565A1 (de) 1975-11-07 1977-05-12 Gyoergy Gusztav Bela Halmos Vorrichtung zum austausch von waerme und/oder stoffen zwischen einer fluessigkeit und einem gas oder dampf
DE2731476A1 (de) 1976-07-13 1978-02-02 Hitachi Cable Dampfkondensierende waermeuebertragungs- wand
US4338140A (en) * 1978-02-21 1982-07-06 Hooker Chemicals & Plastics Corp. Coating composition and method
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EP0136148A2 (fr) 1983-09-19 1985-04-03 Hitachi Cable, Ltd. Paroi de transfert thermique par évaporation
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DE4340745C2 (de) 1993-11-30 1998-10-08 Dietrich Dr Jung Verfahren und Vorrichtung zur Gewinnung von Brauchwasser aus verunreinigten Wässern
US6146697A (en) * 1999-03-02 2000-11-14 Kennametal Inc. MT CVD process
WO2000075397A1 (fr) * 1999-06-04 2000-12-14 Calsonickansei Corp. Echangeur thermique en alliage d'aluminium

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GB546940A (en) * 1941-04-07 1942-08-06 Foote Mineral Co Improvements in or relating to condensers
DE2600821A1 (de) 1975-01-13 1976-07-15 Hitachi Cable Waermetauscherwand fuer einen kondensator und verfahren zu ihrer herstellung
DE2650565A1 (de) 1975-11-07 1977-05-12 Gyoergy Gusztav Bela Halmos Vorrichtung zum austausch von waerme und/oder stoffen zwischen einer fluessigkeit und einem gas oder dampf
DE2731476A1 (de) 1976-07-13 1978-02-02 Hitachi Cable Dampfkondensierende waermeuebertragungs- wand
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US4370177A (en) * 1980-07-03 1983-01-25 Amchem Products, Inc. Coating solution for metal surfaces
EP0136148A2 (fr) 1983-09-19 1985-04-03 Hitachi Cable, Ltd. Paroi de transfert thermique par évaporation
JPH0250948A (ja) * 1988-08-12 1990-02-20 Raimuzu:Kk 複合超硬材料
US5009962A (en) * 1989-01-04 1991-04-23 Nippon Paint Co., Ltd. Surface treatment chemical and bath for forming hydrophilic coatings and method of surface-treating aluminum members
WO1995010642A1 (fr) * 1993-10-15 1995-04-20 Circle-Prosco, Inc. Revetements hydrophiles pour l'aluminium
DE4340745C2 (de) 1993-11-30 1998-10-08 Dietrich Dr Jung Verfahren und Vorrichtung zur Gewinnung von Brauchwasser aus verunreinigten Wässern
WO1995017533A1 (fr) * 1993-12-23 1995-06-29 Mayer, Isabella, Veronika Materiau realise a partir de composes chimiques comportant un metal du groupe iv de la classification periodique des elements, d'azote et d'oxygene et son procede de production
US6146697A (en) * 1999-03-02 2000-11-14 Kennametal Inc. MT CVD process
WO2000075397A1 (fr) * 1999-06-04 2000-12-14 Calsonickansei Corp. Echangeur thermique en alliage d'aluminium
EP1201788A1 (fr) * 1999-06-04 2002-05-02 Calsonickansei Corp. Echangeur thermique en alliage d'aluminium

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011065906A3 (fr) * 2009-11-24 2011-07-28 Air To Air Sweden Ab Procédé de fabrication de multiples canaux destinés à être utilisés dans un dispositif pour l'échange de solutés ou de chaleur entre des écoulements de fluide
CN102686968A (zh) * 2009-11-24 2012-09-19 空对空瑞典股份有限公司 生产供用于在流体流之间进行溶质或热量交换的装置之用的多个通道的方法
AU2010325220B2 (en) * 2009-11-24 2014-06-19 Air To Air Sweden Ab A method of producing multiple channels for use in a device for exchange of solutes or heat between fluid flows
CN102686968B (zh) * 2009-11-24 2015-03-25 空对空瑞典股份有限公司 生产供用于在流体流之间进行溶质或热量交换的装置之用的多个通道的方法
US9683789B2 (en) 2009-11-24 2017-06-20 Air To Air Sweden Ab Method of producing multiple channels for use in a device for exchange of solutes or heat between fluid flows
EP3222931A1 (fr) * 2016-03-22 2017-09-27 POLYCSP ApS Revêtement sélectif solaire
WO2017162247A1 (fr) * 2016-03-22 2017-09-28 Polycsp Aps Revêtement sélectif solaire
US10866013B2 (en) 2016-03-22 2020-12-15 POLYCSP AsP Solar selective coating

Also Published As

Publication number Publication date
DE10122329B4 (de) 2004-06-03
DE10122329A1 (de) 2002-11-21

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