EP1555500A2 - Wärmetauscher - Google Patents
Wärmetauscher Download PDFInfo
- Publication number
- EP1555500A2 EP1555500A2 EP05450002A EP05450002A EP1555500A2 EP 1555500 A2 EP1555500 A2 EP 1555500A2 EP 05450002 A EP05450002 A EP 05450002A EP 05450002 A EP05450002 A EP 05450002A EP 1555500 A2 EP1555500 A2 EP 1555500A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- plate elements
- exchanger according
- heat
- air
- 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- Withdrawn
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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
- 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
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- 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
- F28D9/0031—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 for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—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 for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
Definitions
- the present invention relates to a heat exchanger according to the preamble of claim 1.
- Such heat exchangers are especially for capacitors used in tumble driers.
- Another field of application is for example, the recovery of the heat content of room exhaust air, which is used for heating the fresh air or for the recovery of the Heat content of gases or liquids from technical processes in general.
- the heat exchanger according to the invention for all applications can be used in which the heat content of a gaseous medium in another gaseous medium transmitted via thermally conductive partitions becomes. But it is also conceivable that one or both media in liquid form available.
- Heat exchangers are in numerous embodiments, in particular as capacitors known in tumble driers. Here they serve the purpose of the moist process air coming through a process air duct to a dry room while communicating with ambient airflows through cooling air ducts. or room air to cool.
- the heat exchangers act as capacitors for the process air, wherein the condensed from this process air water in a collecting vessel drips off.
- the dried process air is renewed after Heating again introduced into the drying room.
- the process air and cooling air channels are usually perpendicular to each other, so that the heat exchanger in Cross-flow is flowed through by the process air and the cooling air.
- slats or baffles are provided, which heat exchanging Increase surfaces of the cooling air ducts.
- heat exchangers made entirely of plastic can comparatively are made cheap, but disturbing here are the comparative poorer thermal conductivity of plastics, or the consequent poor heat transfer, especially on the cooling air side.
- EP 1 203 923 A2 describes a heat exchanger which comprises thermally conductive plastic pipes and metallic michleitmaschinen exists.
- a heat exchanger which comprises thermally conductive plastic pipes and metallic michleitmaschinen exists.
- This lies a combination of metallic and non-metallic elements before, on the one hand a large heat exchange surface and thus a high heat transfer coefficient and on the other hand to achieve a low-cost system.
- the Thermal connection of the two systems is achieved by pressing.
- GB 1 336 448 A A similar embodiment is shown in GB 1 336 448 A.
- she describes an embodiment for an air-to-air heat exchanger, wherein a plurality of plates are arranged crosswise one above the other, with hemispherical shapes are present on equally hemispherical forms of the adjacent Hit plates.
- Another heat exchanger with profiled plates is described in WO 99/67591 A.
- a plate heat exchanger consisting of in Spaced apart hollow aluminum single plates, wherein a first medium - such as moist process air - through the spaces between the hollow single plates and a second medium - cooling air through the Hollow element is passed.
- the single plates have to increase the Stability continuous webs and increase the surface between the Webs lying additional half-bridges on.
- a particularly recycling friendly heat exchanger further discloses the DE 198 38 525 A, wherein between flat plate-shaped sheets ribbed plates are arranged. The process air flows through the flat plates, the cooling air is guided through plate plates corrugated with the ribbed plates.
- the ribbed plates are made of thin aluminum foil with thicknesses of 0.15 mm.
- the present invention has as its object to a heat exchanger create an almost 100% free air intake surface on the primary and Secondary side and has a low internal air resistance.
- the used in the heat exchanger devices almost completely on the heat exchanger process be involved in order to get the required volume and that To be able to reduce weight compared to the known systems.
- the heat exchanger according to the invention can be used universally and with minimal Production costs can be produced.
- the same heat exchanger should also for the recovery of the heat content of room exhaust air, which is used for heating the fresh air or for recovering the heat content of gases or liquids be generally usable in technical processes.
- the invention is expressly not limited to the form of a shown here Limited plate element.
- the heat exchanger 1 consists of stacked, similarly profiled Plate elements 2 without intermediate inserts, webs or spacers, so that an unhindered passage of the heat transfer media can take place. If the plate elements 2 are made of aluminum profiles, then they have one Thickness of 0.2 to 0.4 mm, preferably from 0.25 to 0.3 mm and are for example produced in a deep drawing process.
- the plate elements 2 have a profiling 3, approximately as in FIGS to 4 exemplified a longitudinally extending triangular Zig-zag pattern, bordering on the 4 sections on a horizontal stretch can converge.
- the zigzag pattern may vary depending on the heat exchange process And application as a sinusoidal or sectionally rectilinear and be formed curved line. But there are also other profiles conceivable, which even when using smaller wall thicknesses a high dimensional stability secure the plate element.
- Adjacent, similarly profiled and identically aligned plate elements 2 are connected to each other only at their outer edge 5 or 6 in the way that separate flow channels 7 for the primary medium and flow channels 8 for the secondary medium in the cross-flow, in the DC or in the Countercurrent form.
- the stack of plate elements is held together by frame elements 9, wherein the transverse webs 10, which at the edges 6 of the plate elements 2 abut, either part of the frame member 9 may be, or separate Are components which are connected only to the edges 6.
- the frame members 9, the transverse webs 10 and the plate members 2 of the same or different materials be made.
- the body for heat exchange apart from the frame 9 only one single component, namely the plate element 2 is used, which due to its profiling even with small wall thicknesses, aluminum sheet for example, from 0.2 to 0, 4 mm, no distortion by the occurring Subject to media forces.
- the lower wall thickness of the material causes a reduction of the weight of the entire component compared to comparable Heat exchangers by up to 40%.
- the top and bottom layer can also Covering, protection or baffles other profiling be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- Fig. 1
- den Wärmetauscher in Schrägansicht;
- Fig. 2
- eine Stirnansicht von zwei übereinander angeordneten Plattenelementen;
- Fig. 3
- die Plattenelemente aus Fig. 2 in Seitenansicht;
- Fig. 4
- eine Schrägansicht der Plattenelemente aus Fig. 2.
Claims (11)
- Wärmetauscher zum Wärmetausch zwischen gasförmigen und/oder flüssigen Medien unterschiedlichen Wärmeinhaltes, welcher sich aus übereinander angeordneten, im Wesentlichen rechteckigen Plattenelementen (2) zusammensetzt, wobei die Strömungskanäle (7, 8) für das Primär- und das Sekundärmedium abwechselnd aufeinander folgen, dadurch gekennzeichnet, dass der Strömungsquerschnitt über die Plattenfläche im Wesentlichen gleichbleibend ist und benachbarte, profilierte und gleich ausgerichtete Plattenelemente (2) jeweils an zwei aneinander gegenüberliegenden parallelen Rändern (5) verbunden sind, und dass diese Verbindung abwechselnd an jeweils zueinander rechtwinkeligen Rändern (6) vorliegt.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Plattenelemente (2) aus einem thermisch gut leitfähigen Material, bevorzugt aus einem Aluminium-, Kupfer- oder Edelstahlblech oder aus einer Legierung aus Aluminium, Kupfer, Magnesium, Silizium oder Eisen oder einem anderen leitfähigen Material bestehen und durch spanlose Metallformung, insbesondere durch Tiefzieh- oder Pressvorgang hergestellt sind.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Plattenelemente (2) durch Kunststoffspritz- oder Kunststoffpressvorgang aus einem thermisch gut leitfähigen Kunststoff wie etwa einem Acrylnitril-Butadien-Styrol-Polymerisat, Polypropylen, Polystyrol, Polyethylen oder Polycarbonat bevorzugt glasfaserverstärkt, hergestellt sind.
- Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Plattenelemente (2) gleichförmig profiliert sind, wobei die Profilierung ein quer zur Durchtrittsrichtung des Primärmediums verlaufendes dreieckförmiges Zick-Zack Muster (3) ist, oder aus sinusförmigen oder abschnittsweise geradlinigen und gebogenen Linienzügen besteht, welche im Randbereich (4) bevorzugt eben auslaufend ausgebildet sind.
- Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Profilierung der Plattenelemente (2) aus über die Innenfläche gleichmäßig verteilten Prägungen besteht und die Profilierung im Randbereich (4) bevorzugt eben auslaufend ausgebildet ist.
- Wärmetauscher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die übereinander gestapelten Plattenelemente (2) von Rahmenelementen (9) eingefasst sind, welche aus Kunststoff oder Metall gefertigt sind und aus einem umlaufend geschlossenen Rahmen bestehen.
- Wärmetauscher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Ränder (6) je zweier übereinander liegender Plattenelemente (2) von strömungsmäßig günstig geformten Querstegen (10) abgeschlossen und mit diesen luft- und wasserdicht verbunden sind.
- Wärmetauscher nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass das Rahmenelement (9) insbesondere horizontal verlaufende Querstege (10) besitzt, welche die Ränder (6) der Plattenelemente (2) abschließen und mit diesen luft- und wasserdicht verbunden sind.
- Wärmetauscher nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine linienförmige Profilierung (3) bezogen auf die Strömungsrichtung des Primärmediums in einen Winkel von -45° bis +45° ausgerichtet ist.
- Wärmetauscher nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Plattenelemente (2) entsprechend der Art der durchgeleiteten Medien aus unbehandeltem Metall oder emailliert, eloxiert oder lackiert sind und/oder zur Erhöhung des Turbulenzverhaltens eine aufgeraute oder chemisch angeätzte Oberfläche besitzen.
- Wärmetauscher nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass Abstandshalter zwischen den Plattenelementen (2) vorgesehen sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT172004 | 2004-01-13 | ||
AT172004U | 2004-01-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1555500A2 true EP1555500A2 (de) | 2005-07-20 |
EP1555500A3 EP1555500A3 (de) | 2007-03-28 |
Family
ID=34596324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05450002A Withdrawn EP1555500A3 (de) | 2004-01-13 | 2005-01-12 | Wärmetauscher |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1555500A3 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959401A (en) * | 1957-11-27 | 1960-11-08 | Modine Mfg Co | Plate-fin type heat exchanger and method of making the same |
EP0044561A2 (de) * | 1980-07-21 | 1982-01-27 | MüANYAGIPARI KUTATO INTEZET | Wärmetauscher, insbesondere zum Wärmeaustausch zwischen gasförmigen Medien |
EP0566208A1 (de) * | 1992-04-16 | 1993-10-20 | Abb Lummus Heat Transfer B.V. | Plattenwärmetauscher und Verfahren zu dessen Herstellung |
US5785117A (en) * | 1997-02-10 | 1998-07-28 | Nutech Energy Systems Inc. | Air-to-air heat exchanger core |
WO1999067591A1 (de) * | 1998-06-24 | 1999-12-29 | Fischer Maschinen- Und Apparatebau Ag | Plattenwärmetauscher |
WO2001071268A1 (fr) * | 2000-03-20 | 2001-09-27 | Packinox | Procede d'assemblage des plaques d'un faisceau de plaques et faisceau de plaques realise par un tel procede |
-
2005
- 2005-01-12 EP EP05450002A patent/EP1555500A3/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959401A (en) * | 1957-11-27 | 1960-11-08 | Modine Mfg Co | Plate-fin type heat exchanger and method of making the same |
EP0044561A2 (de) * | 1980-07-21 | 1982-01-27 | MüANYAGIPARI KUTATO INTEZET | Wärmetauscher, insbesondere zum Wärmeaustausch zwischen gasförmigen Medien |
EP0566208A1 (de) * | 1992-04-16 | 1993-10-20 | Abb Lummus Heat Transfer B.V. | Plattenwärmetauscher und Verfahren zu dessen Herstellung |
US5785117A (en) * | 1997-02-10 | 1998-07-28 | Nutech Energy Systems Inc. | Air-to-air heat exchanger core |
WO1999067591A1 (de) * | 1998-06-24 | 1999-12-29 | Fischer Maschinen- Und Apparatebau Ag | Plattenwärmetauscher |
WO2001071268A1 (fr) * | 2000-03-20 | 2001-09-27 | Packinox | Procede d'assemblage des plaques d'un faisceau de plaques et faisceau de plaques realise par un tel procede |
Also Published As
Publication number | Publication date |
---|---|
EP1555500A3 (de) | 2007-03-28 |
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