DE3502972A1 - Heat exchanger for the recovery of heat from air and gases - Google Patents
Heat exchanger for the recovery of heat from air and gasesInfo
- Publication number
- DE3502972A1 DE3502972A1 DE19853502972 DE3502972A DE3502972A1 DE 3502972 A1 DE3502972 A1 DE 3502972A1 DE 19853502972 DE19853502972 DE 19853502972 DE 3502972 A DE3502972 A DE 3502972A DE 3502972 A1 DE3502972 A1 DE 3502972A1
- Authority
- DE
- Germany
- Prior art keywords
- heat exchanger
- heat
- fold edges
- air
- plastic plate
- 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
Links
Classifications
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/44—Joining a heated non plastics element to a plastics element
- B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
- F28F21/066—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits for domestic or space-heating systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/18—Heat-exchangers or parts thereof
-
- 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
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)
Abstract
Description
t * am t * on
Dr. Karlheinz RaetzDr. Karlheinz Raetz
Haberweg 4 3502972Haberweg 4 3502972
33 Braunschweig33 Braunschweig
Wärmeaustauscher für die Rückgewinnung von Wärme aus luft und GasenHeat exchanger for the recovery of heat from the air and gases
Strömt luft mit einer Temperatur oberhalb der Umgebungstemperatur in die Umgebung, ist dies immer mit einem Wärmeverlust verbunden.Flows air with a temperature above the ambient temperature into the environment, this is always associated with a loss of heat.
Um diesen Wärmeverlust zu verhindern, sind wirksame Wärmeaustauscher erforderlich, in denen die Wärme aus der Abluft an die kalte Zuluft übertragen wird.To prevent this loss of heat, heat exchangers are effective required, in which the heat from the exhaust air is transferred to the cold supply air.
Anwendung finden solche Wärmeaustauscher in der Klimatechnik, bei der Trocknung von Feuchträumen, der Getreide und Heutrocknung, in der Massenviehhaltung u.a.Such heat exchangers are used in air conditioning, for drying damp rooms, for drying grain and hay, in mass livestock farming, etc.
Hohe Wirkungsgrade bei relativ geringem Materialeinsatz erreichen Wärmeaustauscher, die aus einer fächerartig gefalteten Metallfolie bestehen. Die Metallfolie ist mit eingeprägten Noppen versehen, damit der Spaltabstand konstant ist« Solche gefalteten Wärmeaustauscher müssen an den Faltenkanten abgedichtet werden. Die Luftströme werden an den Faltensätteln an den vier Enden des Wärmeaustauschers zu- bzw. abgeführt. Der mittlere Teil der Faltensättel ist durch eine Platte abgedeckt. Heat exchangers made from a fan-like folded metal foil achieve high levels of efficiency with relatively little use of material exist. The metal foil is provided with embossed knobs so that the gap distance is constant « Such folded heat exchangers must be sealed at the fold edges. The air currents are at the fold saddles supplied and discharged at the four ends of the heat exchanger. The middle part of the folding saddle is covered by a plate.
Problematisch ist die Abdichtung der Faltenkanten. In der DE-OS 24 20 920 sind verschiedene Schweißkonstruktionen beschrieben. In der DE-OS 30 06 988 werden elastische Gummi- oder Kunststoff platten gegen die Faltenkanten gedrückt.Sealing the fold edges is problematic. In DE-OS 24 20 920 various welded constructions are described. In DE-OS 30 06 988 elastic rubber or plastic plates are pressed against the fold edges.
Erfindungsgemäß werden die Folienkanten, die in der Regel aus Metall bestehen, induktiv erhitzt und gleichzeitig gegen eine Kunststoffplatte gedrückt. Die heiße Folienkante erweicht den Kunststoff an der Berührungsstelle und dringt in diesen ein. Ist eine Eindringtiefe von einigen Millimeter erreicht, wird das elektromagnetische Feld abgeschaltet. Die Folie erkaltet und haftet in dem Kunststoff. Für dieses Verfahren ist z.B. Perluran geeignet, ein Kunststoff der Firma BASF auf Polystyrolbasis„According to the invention, the foil edges, which are usually made of metal, are inductively heated and at the same time against a Pressed plastic plate. The hot foil edge softens the plastic at the point of contact and penetrates it. If a penetration depth of a few millimeters is reached, the electromagnetic field is switched off. The foil cools down and sticks in the plastic. Perlurane, for example, a polystyrene-based plastic from BASF, is suitable for this process "
Ein anderes Verfahren sieht vor, den Kunststoff durch EinwirkenAnother method is to act on the plastic
- 2 —- 2 -
von Ultraschall zu erwärmen, so daß die Folienkanten in den ' to be heated by ultrasound, so that the foil edges in the '
Kunststoff eingedrückt werden können. 3 O U /. c) / Z Plastic can be pressed in. 3 O U /. c) / Z
Es ist auch möglich, beide Verfahren gleichzeitig anzuwenden.It is also possible to use both methods at the same time.
Die Erfindung wird an einem Ausführungsbeispiel erläutert. ■ Es zeigen:The invention is explained using an exemplary embodiment. ■ Show it:
Fig.1: Teil eines Wärmeaustauschers aus gefalteter Metallfolie mit offenen FaltenkantenFig. 1: Part of a heat exchanger made of folded metal foil with open fold edges
Fig.2: Wärmeaustauscher mit in einer Kunststoffplatte induktiv eingeschmolzenen Faltenkanten (Schnitt A-B in Fig.1)Fig. 2: Heat exchanger with inductive in a plastic plate melted fold edges (section A-B in Fig. 1)
Fig.1 zeigt ein Teilstück des Wärmeaustauschers mit der gefalteten Metallfolie 1, den Faltenkanten 2 und den seitlichen Begrenzungsblechen 3, an denen die seitlichen Folienenden dichtend befestigt sind.Fig.1 shows a section of the heat exchanger with the folded Metal foil 1, the fold edges 2 and the side delimitation plates 3, to which the lateral ends of the film are attached in a sealing manner.
Der mittlere Teil des Wärmeaustauschers ist beidseitig mit je ; einer Abdeckplatte 4 abgedeckt, so daß vier Öffnungen 5 entstehen für die Zu- und Abfuhr der Luftströme.The middle part of the heat exchanger is on both sides with each; a cover plate 4 covered so that four openings 5 are created for the supply and discharge of the air streams.
Fig.2 zeigt den Schnitt A-B nach Fig.1, jedoch mit der Kunst- „> stoffplatte 6, in die die Faltenkanten 2 und die Begrenzungs- > bleche 3 durch induktive Erwärmung eingeschmolzen sind. Die Begrenzungsbleche 3 können an den Enden laschenartig ausgebildet sein, so daß sie die Kunststoffplatte 6 durchdringen und umgebogen werden können.Fig.2 shows the section A-B according to Fig.1, but with the art "> fabric plate 6, in which the fold edges 2 and the delimitation> sheets 3 are melted down by inductive heating. The delimitation plates 3 can be designed like a strap at the ends be so that they penetrate the plastic plate 6 and can be bent.
Damit wird verhindert, daß ..die Kunststoffplatte 6 sich bei starker mechanischer und thermischer Beanspruchung von den Fclienkanten 2 löst.This prevents that .. the plastic plate 6 is strong mechanical and thermal stress from the Fclienkanten 2 releases.
- Leerseite -- blank page -
ORIGINAL INSPECTEDORIGINAL INSPECTED
Claims (3)
dadurch gekennzeichnet, daß2) heat exchanger according to claim 1),
characterized in that
dadurch gekennzeichnet, daß3) heat exchanger according to claim 1),
characterized in that
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853502972 DE3502972A1 (en) | 1983-08-01 | 1985-01-30 | Heat exchanger for the recovery of heat from air and gases |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833327685 DE3327685A1 (en) | 1983-08-01 | 1983-08-01 | Ventilator with heat recovery |
DE19853502972 DE3502972A1 (en) | 1983-08-01 | 1985-01-30 | Heat exchanger for the recovery of heat from air and gases |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3502972A1 true DE3502972A1 (en) | 1986-07-31 |
Family
ID=25812795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853502972 Ceased DE3502972A1 (en) | 1983-08-01 | 1985-01-30 | Heat exchanger for the recovery of heat from air and gases |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3502972A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210530C2 (en) * | 1992-03-31 | 2000-07-13 | Karlheinz Raetz | Box-shaped counterflow heat exchanger |
FR2854229A1 (en) * | 2003-04-25 | 2004-10-29 | Realisation Mecaniques Engenee | Heat exchanger for use in gas boiler, has primary and secondary heat exchanger arranged to transverse flow of hot air towards interstice of exchangers, and duct passing another flow of hot air into secondary exchanger |
EP1662223A1 (en) * | 2004-11-24 | 2006-05-31 | Modine Manufacturing Company | Heat exchanger and method of fabrication |
EP2096396A2 (en) | 2008-02-29 | 2009-09-02 | Hochschule Bremen | Heat exchanger for fluid media |
-
1985
- 1985-01-30 DE DE19853502972 patent/DE3502972A1/en not_active Ceased
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210530C2 (en) * | 1992-03-31 | 2000-07-13 | Karlheinz Raetz | Box-shaped counterflow heat exchanger |
FR2854229A1 (en) * | 2003-04-25 | 2004-10-29 | Realisation Mecaniques Engenee | Heat exchanger for use in gas boiler, has primary and secondary heat exchanger arranged to transverse flow of hot air towards interstice of exchangers, and duct passing another flow of hot air into secondary exchanger |
US7302916B2 (en) | 2003-04-25 | 2007-12-04 | Rocco Giannoni | Condensation heat exchanger with a gas/air heat collector |
EP1662223A1 (en) * | 2004-11-24 | 2006-05-31 | Modine Manufacturing Company | Heat exchanger and method of fabrication |
EP2096396A2 (en) | 2008-02-29 | 2009-09-02 | Hochschule Bremen | Heat exchanger for fluid media |
DE102008011970A1 (en) | 2008-02-29 | 2009-09-03 | Hochschule Bremen | Heat exchanger for fluid media |
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Legal Events
Date | Code | Title | Description |
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AF | Is addition to no. |
Ref country code: DE Ref document number: 3327685 Format of ref document f/p: P |
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8131 | Rejection |