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EP0953136A2 - Procede de production d'un echangeur thermique - Google Patents

Procede de production d'un echangeur thermique

Info

Publication number
EP0953136A2
EP0953136A2 EP98947458A EP98947458A EP0953136A2 EP 0953136 A2 EP0953136 A2 EP 0953136A2 EP 98947458 A EP98947458 A EP 98947458A EP 98947458 A EP98947458 A EP 98947458A EP 0953136 A2 EP0953136 A2 EP 0953136A2
Authority
EP
European Patent Office
Prior art keywords
spacers
film
heat exchanger
coating
folding
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Withdrawn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
EP98947458A
Other languages
German (de)
English (en)
Inventor
Gerhard Feustle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0953136A2 publication Critical patent/EP0953136A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0025—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by zig-zag bend plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention relates to a method for producing a heat exchanger according to the preamble of claim 1.
  • a heat exchanger which consists of spacers stacked on top of one another and a film which winds in a zigzag pattern around the individual spacers, the film separating the individual spacers from one another by a film layer.
  • the heat exchanger according to FIG. 1 has a stack of many narrow air chambers. These are each formed by two layers of a zigzag-shaped folded film (F), in the folds of which spacers A, B are inserted according to FIG. 2 for the lateral limitation of the air chambers.
  • the spacers A, B consist of a U-shaped spacer AI, Bl and a straight spacer A2, B2. These together form the edges of a rectangle, which has a gap to the spacer AI, Bl at both ends of the spacer A2, B2.
  • These gaps each form two openings a, b at the ends of a long side of the respective air chamber when the spacer is inserted into the film.
  • the openings a, b of the odd-numbered air chamber units of the stack are all on one long side, and those of the even-numbered air chamber units are on the opposite long side.
  • FIG 3 shows an overall arrangement of the heat exchanger device.
  • the heat exchanger stack is located in a housing G.
  • the housing G has an inlet opening with a pollen filter 18 and an outlet opening.
  • Electronics E is also provided, which is accommodated in the housing G.
  • Small fan motors 15 are arranged in front of the openings a, b of the heat exchanger stack.
  • the fan motors force air flows through the chambers.
  • the streams of some Side then flow along the chamber walls of the air chambers on the other side, in which air flows move in the opposite direction
  • the chamber walls are made of thin metal foil (e.g. 12 ⁇ m), there is very good heat coupling between the chambers on two sides, with the exception of the first and last chamber, which each have only one neighboring chamber.
  • the height of the air chamber is determined by the height of the spacers A, B. The smaller their thickness, the more air chambers can be formed for a certain stack height.
  • the heat exchanger described can be operated highly efficiently in countercurrent and can therefore be used in particular to recover the thermal energy which is contained in used room air and escapes when ventilated outdoors.
  • Fig. 5 cross section through the heat exchanger in the inlet / outlet area of the heat exchanger
  • the heat exchanger described is manufactured as follows:
  • spacers of arrangement A or B are alternately placed on top of one another and welded point by point, whereby after each spacer A, B the metal foil F around the long, closed side of the U-shaped spacer AI or Bl is folded and comes to rest between the spacers A and B, or between B and A.
  • the film should be wrapped tightly so that the air chambers are as uniform as possible across the entire width of the stack.
  • the winding process is repeated as often as necessary up to the intended stack height and is completed with a further rectangular plate, the film F being cut off before this end plate is applied.
  • the finished stack can be wrapped with a suitable adhesive tape next to the openings.
  • the respective air chambers are clearly and reliably separated from each other by the winding method, so that no losses occur due to leaks.
  • Aluminum foil is preferably used as the foil material.
  • the spacer frames can be punched out of plastic film tapes, preferably from recycling material.
  • thermoplastics are sprayed directly onto the film layer as a thin and uniform material application in the arrangement forms A and B. After coating, the unit moves into a temporary resting position so that the film roll can be tilted onto the opposite shelf. The film F is folded over the coating just created. A press plate then presses the film firmly onto the still sticky coating. The plate is removed and the next coating can begin, now with the mirror-image arrangement of spacers to the previous position etc. until the final stack height is reached. The stack is also started here with a rectangular base plate made of plastic and completed with a similar one.
  • thermoplastic material a suspension of multicomponent thermosets and a suitable filler material can also be used, the suspension being adjusted so that it does not flow away. Hardening takes place very slowly at normal temperature. It can be accelerated by heating the controllable injection unit or by heating the finished heat exchanger stack in the furnace. The manufacturing procedure for the stack is analogous to alternative 1.
  • thermoplastic powder is spread onto the respective film layer, then the powder is irradiated using a highly concentrated heat source (eg laser beam) in a raster process according to the arrangement A or B, so that the powder melts at these points and becomes intimately associated with the film F. connects.
  • a highly concentrated heat source eg laser beam
  • the non-liquefied powder is sucked off again.
  • the film is folded as for I and II.
  • Production method III can be combined with version II in such a way that a suspension according to II is applied and immediately thereafter with a concentrated heat source, for example a laser beam, is heated with the aid of a deflection system and thus experiences faster curing.
  • a concentrated heat source for example a laser beam
  • Another type of production of the heat exchanger stack can be carried out using the screen printing method.
  • a paste-like suspension of heat-hardening components provided with suitable filling materials, is applied to the film which runs endlessly between the rollers.
  • a matching folding mechanism causes the film, which is coated with the paste on each side, to bend at the right place, so that a Z-Z fold is created.
  • the film sections are lightly pressed from the uncoated side onto the stack growing in this way.
  • the film is separated on a folded edge, the finished stack is covered with a cover plate, the stack is transported further to a hardening furnace and the next stack is restarted by inserting a base plate.
  • FIG. 4 shows the flow conditions in a heat exchanger according to FIG. 1 in its inlet / outlet area.
  • the air flows according to the flow lines L from the inlet opening a in a semicircular flow into the fuselage W of the heat exchanger.
  • the air of the counterflow flows along the flow lines L 'in the heat exchanger chamber underneath from the fuselage W of the heat exchanger in a semicircular flow out of the outlet opening b.
  • the heat exchanger operates over its predominant length as a counterflow heat exchanger, there is rather a crossflow in the inlet / outlet area according to FIG. 3, since the flows are deflected here by an angle of 90 °.
  • Cross-flow heat exchangers have poorer efficiencies than counter-flow heat exchangers.
  • the efficiency of the heat exchanger is therefore impaired in the deflection area. The loss that occurs in this area can no longer be compensated.
  • the area on the film F, which forms the inflow / outflow area of the heat exchanger is covered on at least one side of the film F with a heat insulator.
  • the insulator can be a plastic film, for example, which is applied to one side or to both sides of the metal film. Self-adhesive film can be useful for the production. A coating of the metal foil with paint or the like is also possible for thermal insulation.
  • the heat exchanger With a heat exchanger, the flow resistance increases with decreasing height of the air chambers.
  • the heat exchanger therefore advantageously has the cross section shown in FIG. 5 in the inflow / outflow area.
  • the solid lines, the film F runs here zigzag-fb 'RMIG with sharp, acute-angled creases at folded edges.
  • the individual film layers connect the folded edges opposite one another in a substantially straight line.
  • a stack of alternately stacked acute angles is formed, so that the longitudinal edges 11 of the inlet / outlet openings a, b are flattened at an acute angle.
  • the foil layers of foil F run parallel to one another in accordance with the dashed lines.
  • the sharp crease is no longer available here.
  • the heat exchanger stack is used in semi or fully automatic ventilation devices to largely avoid thermal energy losses when exchanging air, for example in living rooms and at workplaces.
  • a device does not only have a positive effect during the cold seasons, but also in summer, living rooms and work rooms can be kept cool for a long time, provided the outer walls and windows are designed for low thermal conductivities and sufficient cooling is possible at night.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Procédé pour la production d'un échangeur thermique (WT) servant à récupérer l'énergie thermique lors de l'échange d'air dans des locaux d'habitation ou professionnels. L'échangeur thermique selon l'invention comprend un empilement de chambres à air étroites similaires qui sont constituées d'écarteurs (A, B) et d'un film métallique (F) entourant les écarteurs. Le procédé selon l'invention comporte les étapes suivantes: a) application, directement sur le film (F), d'un thermoplaste liquéfié chauffé selon la forme des écarteurs (A, B); b) pliage du film (F) sur le revêtement créé, le long de l'arête longitudinale externe des écarteurs (A1, B1); c) pressage du film (F) sur le revêtement justement créé; d) application du revêtement suivant avec agencement inversé des écarteurs (A, B) par rapport à la couche précédente; e) répétition des étapes de pliage et d'enduction avec des couches alternées des écarteurs (A, B), et ce jusqu'à la hauteur d'empilement finale.
EP98947458A 1997-08-26 1998-08-26 Procede de production d'un echangeur thermique Withdrawn EP0953136A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19737158A DE19737158A1 (de) 1997-08-26 1997-08-26 Hocheffizienter Wärmetauscher zur Anwendung in Sensor- oder zeitgesteuerter Stoßbelüftung mit Wärmerückgewinnung
DE19737158 1997-08-26
PCT/EP1998/005418 WO1999010694A2 (fr) 1997-08-26 1998-08-26 Procede de production d'un echangeur thermique

Publications (1)

Publication Number Publication Date
EP0953136A2 true EP0953136A2 (fr) 1999-11-03

Family

ID=7840220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98947458A Withdrawn EP0953136A2 (fr) 1997-08-26 1998-08-26 Procede de production d'un echangeur thermique

Country Status (3)

Country Link
EP (1) EP0953136A2 (fr)
DE (2) DE19737158A1 (fr)
WO (1) WO1999010694A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1209596C (zh) * 2000-03-14 2005-07-06 换气控股有限公司 热交换器
CA2573663A1 (fr) * 2004-07-27 2006-02-02 John Francis Urch Echangeur thermique
DE102004055550A1 (de) * 2004-11-17 2006-05-24 Kwm Weisshaar Blechbearbeitung Gmbh Wärmetauscher
DE102006024342A1 (de) * 2006-05-24 2007-11-29 Wantschik, Michael, Dr. Wärmetauscher
JP4877016B2 (ja) * 2007-03-30 2012-02-15 パナソニック株式会社 熱交換素子
IT1399414B1 (it) * 2010-04-12 2013-04-16 Univ Degli Studi Torino Dispositivo di ventilazione e di scambio di calore per scambiare aria interna di un edificio/stanza con aria esterna dell'atmosfera.
DE102012003544A1 (de) 2012-02-22 2013-08-22 Siegfried Mielke flaches Lüftugsmodul
DE102012013162A1 (de) 2012-07-02 2014-01-02 Siegfried Mielke Wärmetauscher - Lüftungsmodul

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US3847211A (en) * 1969-01-28 1974-11-12 Sub Marine Syst Inc Property interchange system for fluids
DE2030766A1 (de) * 1970-06-23 1971-12-30 Masukowitz H Lüftungs-Wärmeaustauscher
NL7203268A (fr) * 1972-03-11 1973-09-13
CH588672A5 (fr) * 1975-07-11 1977-06-15 Alusuisse
US4117049A (en) * 1977-03-14 1978-09-26 Carrico Arnold J Flexible multi-columnar fluid treatment cellular apparatus
FR2412805A1 (fr) * 1977-12-23 1979-07-20 Vironneau Pierre Echangeur de chaleur a plaques et procede de realisation d'un tel echangeur
AU526360B2 (en) * 1978-01-23 1983-01-06 Baxter Travenol Laboratories Inc. Membrane diffusion system
FR2420114A1 (fr) * 1978-03-15 1979-10-12 Vironneau Pierre Procede d'assemblage des elements constitutifs des echangeurs d'energie
NL8002973A (nl) * 1980-05-22 1981-12-16 Aernoud Rudolf Koenings Inrichting voor het behandelen van een fluidum.
DE3102523C2 (de) * 1981-01-27 1985-10-10 Ludwig 8448 Leiblfing Penzkofer Gegenstromwärmetauscher
DE96306T1 (de) * 1982-05-28 1984-05-24 AMF Inc., 10604 White Plains, N.Y. Filterelement mit mikroporoeser ultrafiltrationsmembran.
JPS59202395A (ja) * 1983-05-02 1984-11-16 Toshiba Corp 積層型熱交換器
JPS60238688A (ja) * 1984-05-11 1985-11-27 Mitsubishi Electric Corp 熱交換器
GB8611667D0 (en) * 1986-05-13 1986-06-18 Mckirdy I D Heat exchanger
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CA2131392A1 (fr) * 1992-03-12 1993-09-16 John Francis Urch Echangeur de chaleur a chicanes moulees
GB2273767B (en) * 1992-12-24 1997-06-25 Michael David Rose Improvements in or relating to air ventilating units
DE29607547U1 (de) * 1996-04-26 1996-07-18 SKS-Stakusit-Kunststoff GmbH & Co. KG, 47198 Duisburg Wärmetauscher in Plattenbauweise

Non-Patent Citations (1)

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Title
See references of WO9910694A2 *

Also Published As

Publication number Publication date
DE29823852U1 (de) 2000-01-27
DE19737158A1 (de) 1999-03-04
WO1999010694A3 (fr) 1999-05-27
WO1999010694A2 (fr) 1999-03-04

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