EP1492984A1 - Echangeur thermique et module collecteur plat heliothermique et son procede de production - Google Patents

Echangeur thermique et module collecteur plat heliothermique et son procede de production

Info

Publication number
EP1492984A1
EP1492984A1 EP03717277A EP03717277A EP1492984A1 EP 1492984 A1 EP1492984 A1 EP 1492984A1 EP 03717277 A EP03717277 A EP 03717277A EP 03717277 A EP03717277 A EP 03717277A EP 1492984 A1 EP1492984 A1 EP 1492984A1
Authority
EP
European Patent Office
Prior art keywords
solder
zinc
layer
difficult
adhesive layer
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.)
Withdrawn
Application number
EP03717277A
Other languages
German (de)
English (en)
Inventor
Jochen Spriestersbach
Frank Prenger
Jürgen Wisniewski
Sabine Kurowski
Armin Melzer
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.)
Grillo Werke AG
Original Assignee
Grillo Werke AG
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
Priority claimed from DE10215901A external-priority patent/DE10215901A1/de
Application filed by Grillo Werke AG filed Critical Grillo Werke AG
Publication of EP1492984A1 publication Critical patent/EP1492984A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
    • F24S10/755—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being otherwise bent, e.g. zig-zag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/6011—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the present invention relates to heat exchangers and heliothermal flat-collector modules consisting of carrier panels made of zinc, copper or aluminum and capillary tubes made of another, not or only difficult to solder, connected by soldering.
  • Conventional heat exchangers and flat collector modules generally consist of a carrier panel and capillary tube coils attached to it. These capillary tubes are located on the back of the metal sheet panel facing away from the radiation and a liquid medium flows through them.
  • capillary tubes made of plastics cannot be soldered to metal sheets.
  • Adhesives also have the disadvantage that they have low thermal conductivity.
  • the soldering of metallic capillary tubes to the panels is also so expensive that this process would be a significant cost factor.
  • the present invention is based on the object of providing a heat exchanger which can be produced in a simple manner and of specifying a method which simplifies and reduces the cost of connecting the tubes of heat exchangers and heliothermal flat collector modules to the sheet metal panels.
  • pipes made of stainless steel, copper or plastic are to be soldered directly to carrier panels made of zinc, copper or aluminum.
  • a heat exchanger and heliothermal flat-collector module with support panels (1) made of zinc, copper or aluminum and at least over partial areas by capillary tubes (2) connected therewith by soldering from another material that is not or only difficult to solder, which thereby characterized in that at least the interconnected subregions made of material which is difficult or difficult to solder have one or more adhesive layers (3), one of the adhesive layers forms an uppermost layer and at least the uppermost layer of the adhesive layers can be soldered.
  • the solderable layer consists of zinc with up to 30% by weight of aluminum.
  • the aluminum content is in particular 5 to 25% by weight or 10 to 20% by weight.
  • the heat exchanger and heliothermal flat collector module according to the present invention has capillary tubes (2) which are made of stainless steel, copper or plastic.
  • the invention also relates to a method for producing heat exchangers and heliothermal flat collector modules of the present invention, the method being characterized in that a metallic adhesive layer (3) and the parts are applied at least to the subregions to be connected from materials that are difficult or impossible to solder then be connected together by soldering.
  • the metallic adhesive layer (3) consists in particular of zinc or a zinc alloy.
  • zinc aluminum is particularly suitable as zinc alloy.
  • the zinc layer is applied either by immersion in liquid zinc, but preferably by thermal spraying on the heat exchangers or flat collector modules. In the case of temperature-sensitive materials such as plastic in particular, this zinc layer can be applied by thermal spraying.
  • the soldering then takes place with a suitable solder. Tin base solder, for example SnCu 3 , SnZn30 or SnAg, is suitable. If the material of the panels cannot be directly soldered well, this material can also be coated beforehand with a solderable adhesive layer, for example made of zinc or a zinc-aluminum alloy.
  • solder required for soldering can in turn be sprayed onto the adhesive layer as a thin layer. If the material is temperature-resistant, the solder can also be applied in liquid form by dipping or electroplating.
  • the mechanical strength of the solder joint can be increased in some cases by rolling the layer system after application.
  • connection of the capillary tubes to the carrier panels can then be carried out in a particularly simple manner by heating the panels to temperatures above the melting point of the solder and bringing them together with the capillary tubes precoated with zinc or zinc alloy. When it cools down, the permanent solder connection is created immediately.
  • Tin base solder is particularly suitable as a solder. According to the invention, however, tin-zinc alloys with up to 50% zinc or tin-copper alloys with up to 14% copper can be used as solder.
  • the flux suitable for the respective solder can also be used. For example, the "ZD-Pro" soldering water from Felder Löttechnik is suitable.
  • Figure 2 shows schematically in part A the application of an adhesive layer and in part B additionally the application of a solder layer on a capillary tube.
  • Figure 3 shows an enlarged view of the connection between the capillary tube and the support panels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur thermique et un module collecteur plat héliothermique comprenant des panneaux support (1) en zinc, cuivre ou aluminium et, au moins sur des zones partielles, des tuyaux capillaires (2), réalisés dans un autre matériau impossible ou difficile à souder, sont reliés aux panneaux par brasage. L'invention est caractérisée en ce qu'au moins les zones partielles reliées entre elles et réalisées dans un matériau impossible ou difficile à souder présentent au moins une couche d'adhérence (3). Une des couches d'adhérence (3) est une couche d'adhérence supérieure et au moins la couche supérieure peut être soudée.
EP03717277A 2002-04-11 2003-04-07 Echangeur thermique et module collecteur plat heliothermique et son procede de production Withdrawn EP1492984A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10215901 2002-04-11
DE10215901A DE10215901A1 (de) 2002-04-11 2002-04-11 Wärmetauscher und heliothermische Flachkollektormodule und Verfahren zur Herstellung derselben
DE10219236 2002-04-30
DE10219236 2002-04-30
PCT/EP2003/003576 WO2003085330A1 (fr) 2002-04-11 2003-04-07 Echangeur thermique et module collecteur plat heliothermique et son procede de production

Publications (1)

Publication Number Publication Date
EP1492984A1 true EP1492984A1 (fr) 2005-01-05

Family

ID=28792835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03717277A Withdrawn EP1492984A1 (fr) 2002-04-11 2003-04-07 Echangeur thermique et module collecteur plat heliothermique et son procede de production

Country Status (3)

Country Link
EP (1) EP1492984A1 (fr)
AU (1) AU2003221555A1 (fr)
WO (1) WO2003085330A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110232634A1 (en) * 2010-03-25 2011-09-29 GreenOutlet LLC Solar heating apparatus

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601573A (en) * 1969-10-13 1971-08-24 Chrysler Corp Fluxless argon arc soldering
US3979042A (en) * 1975-01-16 1976-09-07 Raytheon Company Vacuum brazing of nickel to aluminum
US4023557A (en) * 1975-11-05 1977-05-17 Uop Inc. Solar collector utilizing copper lined aluminum tubing and method of making such tubing
US4161212A (en) * 1977-01-28 1979-07-17 Martin Marietta Corporation Pneumatically controlled wide heat load space radiator
GB2010466A (en) * 1977-12-14 1979-06-27 Fulton Ltd Heat Exchanger
GB2064754A (en) * 1979-11-29 1981-06-17 Modine Mfg Co Solar heater
JPS57209773A (en) * 1981-06-18 1982-12-23 Nippon Mining Co Ltd Method for soldering copper or copper alloy fins to titanium tubes for finned heat exchanger
US4615952A (en) * 1982-10-29 1986-10-07 Norsk Hydro A.S. Aluminum shapes coated with brazing material and process of coating
JPS59150662A (ja) * 1983-02-16 1984-08-28 Toyo Radiator Kk 鋼材と銅材との接合方法
JPS60127070A (ja) * 1983-12-15 1985-07-06 Fujitsu Ltd 接合方法
IT1188061B (it) * 1985-11-15 1987-12-30 Armco Spa Scambiatore termico in particolare evaporatore e metodo per la sua fabbricazione
DE8912272U1 (de) * 1989-10-16 1991-02-14 Helmut Lingemann GmbH & Co, 5600 Wuppertal Plattenverflüssiger für eine Kühlmaschine, insbesondere für einen Haushalts-Kühlschrank
US5794611A (en) * 1996-05-24 1998-08-18 Refrigeration Research, Inc. Solar collector
IT1291271B1 (it) * 1997-02-10 1998-12-30 Raco Spa Metodo per la realizzazione di evaporatore per impianti di refrigerazione e rispettivo evaporatore od apparato che lo
DE10017453B4 (de) * 2000-04-07 2004-11-04 Audi Ag Verfahren zur Herstellung einer Schweiß- bzw. Lötverbindung
DE20022009U1 (de) * 2000-12-27 2001-03-01 Rheinzink GmbH & Co. KG, 45711 Datteln Heliothermischer Flachkollektor-Modul

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03085330A1 *

Also Published As

Publication number Publication date
WO2003085330A1 (fr) 2003-10-16
AU2003221555A1 (en) 2003-10-20

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