DE102020119973A1 - Process for manufacturing at least one microchannel bundle heat exchanger - Google Patents
Process for manufacturing at least one microchannel bundle heat exchanger Download PDFInfo
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- DE102020119973A1 DE102020119973A1 DE102020119973.2A DE102020119973A DE102020119973A1 DE 102020119973 A1 DE102020119973 A1 DE 102020119973A1 DE 102020119973 A DE102020119973 A DE 102020119973A DE 102020119973 A1 DE102020119973 A1 DE 102020119973A1
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
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- 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
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
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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
- 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
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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
- 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
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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
- 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
- F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
- F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0137—Auxiliary supports for elements for tubes or tube-assemblies formed by wires, e.g. helically coiled
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
- B29C2045/14557—Coating rod-like, wire-like or belt-like articles coating spliced fibres or cables, e.g. optical fiber splices or junctions
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14385—Coating a portion of a bundle of inserts, e.g. making brushes
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
- B29C45/14565—Coating rod-like, wire-like or belt-like articles at spaced locations, e.g. coaxial-cable wires
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D2001/0253—Particular components
- F28D2001/026—Cores
- F28D2001/0273—Cores having special shape, e.g. curved, annular
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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
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
- F28F2255/146—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded overmolded
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Herstellung zumindest eines Mikrokanalbündel-Wärmetauschers (1), der einen Wärmetauscherkern (6) aufweist, umfassend die Schrittea) Erzeugen zumindest eines flächigen Wärmetauscherelements (3) durch Bereitstellen einer Vielzahl von Mikrokanälen (2), wobei die Mikrokanäle (2) in einer ersten Richtung parallel beziehungsweise im Wesentlichen parallel zueinander angeordnet werden und durch ein formgebendes Verfahren durch eine Mehrzahl von Verbindungsmitteln (4) miteinander verbunden werden,b) Formen eines Wärmetauscherpakets (5) aus dem zumindest einen Wärmetauscherelement (3),c) Beschichten des Wärmetauscherpakets (5) mit einer galvanischen Beschichtung (8a, 8b), undd) Entformen des Wärmetauscherpakets (5) und Erzeugen zumindest eines Wärmetauscherkerns (6) aus dem Wärmetauscherpaket (5).The invention relates to a method for producing at least one microchannel bundle heat exchanger (1), which has a heat exchanger core (6), comprising the steps a) producing at least one flat heat exchanger element (3) by providing a large number of microchannels (2), the microchannels ( 2) are arranged parallel or essentially parallel to one another in a first direction and are connected to one another by a shaping process using a plurality of connecting means (4),b) shaping a heat exchanger package (5) from the at least one heat exchanger element (3),c) Coating the heat exchanger pack (5) with a galvanic coating (8a, 8b), andd) demolding the heat exchanger pack (5) and producing at least one heat exchanger core (6) from the heat exchanger pack (5).
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung zumindest eines Mikrokanalbündel-Wärmetauschers.The present invention relates to a method for producing at least one microchannel bundle heat exchanger.
Mikrokanalbündel-Wärmetauscher sind als Hochleistungswärmetauscher aus dem Stand der Technik in unterschiedlichen Ausführungsformen bekannt. Diese Mikrokanalbündel-Wärmetauscher zeichnen sich durch eine Vielzahl rohrförmiger Mikrokanäle aus, so dass die mechanischen Spannungen in den Wänden der Mikrokanäle gering sind und geringe Wandstärken realisiert werden können. Ferner weisen derartige Mikrokanalbündel-Wärmetauscher eine geringe Masse sowie eine große Wärmetauscheroberfläche auf, die eine gute Wärmeübertragung zwischen einem heißen Medium und einem Kühlmedium ermöglichen. Mikrokanalbündel-Wärmetauscher bestehen häufig aus mehr als 1000 rohrförmigen Mikrokanälen, die sehr kleine Querschnitte, die typischerweise < 1 mm sind, und geringe Wandstärken im Bereich von etwa 1/10 mm aufweisen.Microchannel bundle heat exchangers are known as high-performance heat exchangers from the prior art in various embodiments. These microchannel bundle heat exchangers are characterized by a large number of tubular microchannels, so that the mechanical stresses in the walls of the microchannels are low and low wall thicknesses can be implemented. Furthermore, such micro-channel bundle heat exchangers have a low mass and a large heat exchanger surface, which enable good heat transfer between a hot medium and a cooling medium. Microchannel bundle heat exchangers often consist of more than 1000 tubular microchannels, which have very small cross sections, which are typically <1 mm, and low wall thicknesses in the range of around 1/10 mm.
Aus der
Neben zahlreichen Vorteilen weisen derartige Mikrokanalbündel-Wärmetauscher jedoch auch einige Nachteile auf. So ist die Herstellung der Mikrokanalbündel-Wärmetauscher ein vollständig manueller und daher zeitaufwändiger und fehleranfälliger Prozess. Dieses hat zur Folge, dass der praktische Einsatz von Mikrokanalbündel-Wärmetauschern auf wenige spezielle Anwendungen beschränkt ist.In addition to numerous advantages, however, such microchannel bundle heat exchangers also have some disadvantages. Thus, the manufacture of the microchannel bundle heat exchangers is a completely manual and therefore time-consuming and error-prone process. As a result, the practical use of microchannel bundle heat exchangers is limited to a few special applications.
Die vorliegende Erfindung macht es sich zur Aufgabe, ein Verfahren zur Herstellung eines Mikrokanalbündel-Wärmetauschers vorzuschlagen, welches weitgehend automatisiert durchgeführt werden kann und dadurch wesentlich einfacher und damit auch kostengünstiger ist.The present invention sets itself the task of proposing a method for producing a microchannel bundle heat exchanger which can be carried out largely automatically and is therefore significantly simpler and therefore also more cost-effective.
Die Lösung dieser Aufgabe liefert ein Verfahren zur Herstellung zumindest eines Mikrokanalbündel-Wärmetauschers mit den Merkmalen des Anspruchs 1. Die Unteransprüche betreffen vorteilhafte Weiterbildungen der Erfindung.The solution to this problem is provided by a method for producing at least one microchannel bundle heat exchanger with the features of
Ein erfindungsgemäßes Verfahren zur Herstellung zumindest eines Mikrokanalbündel-Wärmetauschers, der einen Wärmetauscherkern aufweist, umfasst die Schritte
- a) Erzeugen zumindest eines flächigen Wärmetauscherelements durch Bereitstellen einer Vielzahl von Mikrokanälen, wobei die Mikrokanäle in einer ersten Richtung parallel beziehungsweise im Wesentlichen parallel zueinander angeordnet werden und durch ein formgebendes Verfahren durch eine Mehrzahl von Verbindungsmitteln miteinander verbunden werden,
- b) Formen eines Wärmetauscherpakets aus dem zumindest einen Wärmetauscherelement,
- c) Beschichten des Wärmetauscherpakets mit einer galvanischen Beschichtung und
- d) Entformen des Wärmetauscherpakets und Erzeugen zumindest eines Wärmetauscherkerns aus dem Wärmetauscherpaket.
- a) producing at least one flat heat exchanger element by providing a multiplicity of microchannels, the microchannels being arranged parallel or substantially parallel to one another in a first direction and being connected to one another by a shaping process by means of a multiplicity of connecting means,
- b) forming a heat exchanger package from the at least one heat exchanger element,
- c) coating the heat exchanger pack with a galvanic coating and
- d) Demoulding of the heat exchanger pack and production of at least one heat exchanger core from the heat exchanger pack.
Das erfindungsgemäße Verfahren ermöglicht in vorteilhafter Weise eine zumindest weitgehend automatisierte Herstellung zumindest eines Mikrokanalbündel-Wärmetauschers, der einen Wärmetauscherkern aufweist. Im Vergleich zu einem manuellen Herstellungsprozess des Wärmetauschers können die Herstellungskosten dadurch deutlich verringert werden.The method according to the invention advantageously enables at least largely automated production of at least one microchannel bundle heat exchanger which has a heat exchanger core. In comparison to a manual manufacturing process for the heat exchanger, the manufacturing costs can be significantly reduced as a result.
In einer bevorzugten Ausführungsform wird vorgeschlagen, dass die Mikrokanäle durch ein Webverfahren, ein Spritzverfahren, ein Walzverfahren oder ein Druckverfahren miteinander verbunden werden. Wenn als formgebendes Verfahren zur Verbindung der Mikrokanäle ein Webverfahren gewählt wird, werden die Mikrokanäle in eine Webvorrichtung eingespannt und mittels einer Mehrzahl von Schussdrähten oder Schussfäden, welche die Verbindungsmittel bilden, miteinander verbunden. Wenn als formgebendes Verfahren zur Verbindung der Mikrokanäle ein Spritzverfahren gewählt wird, werden die Mikrokanäle durch mehrere Umspritzungen miteinander verbunden, welche die Verbindungsmittel bilden. Sowohl die Schussdrähte beziehungsweise Schussfäden als auch die Umspritzungen erstrecken sich vorzugsweise in einer zweiten Richtung, die orthogonal zur ersten Richtung orientiert ist, in der die Mikrokanäle nebeneinander angeordnet sind.In a preferred embodiment it is proposed that the microchannels are connected to one another by a weaving process, an injection molding process, a rolling process or a printing process. If a weaving process is chosen as the shaping process for connecting the microchannels, the microchannels are clamped in a weaving device and connected to one another by means of a plurality of weft wires or weft threads, which form the connecting means. If an injection molding method is selected as the shaping method for connecting the microchannels, the microchannels are connected to one another by a plurality of overmoldings, which form the connecting means. Both the weft wires or weft threads and the encapsulations preferably extend in a second direction, which is oriented orthogonally to the first direction, in which the microchannels are arranged next to one another.
In einer besonders bevorzugten Ausführungsform wird vorgeschlagen, dass das Formen des Wärmetauscherpakets aus dem zumindest einen Wärmetauscherelement durch Aufwickeln oder Falten eines Wärmetauscherelements oder durch Stapeln einer Mehrzahl von Wärmetauscherelementen erfolgt. Dadurch kann die Formung des Wärmetauscherpakets relativ einfach, insbesondere auch in einem automatisiert durchführbaren Verfahrensschritt erfolgen.In a particularly preferred embodiment, it is proposed that the heat exchanger package is formed from the at least one heat exchanger element by winding or folding a heat exchanger element or by stacking a plurality of heat exchanger elements. As a result, the heat exchanger package can be formed relatively easily, in particular in a method step that can be carried out automatically.
In einer vorteilhaften Ausführungsform besteht die Möglichkeit, dass die galvanische Beschichtung des Wärmetauscherpakets durch ein Elektroforming- oder Elektroplating-Verfahren erzeugt wird.In an advantageous embodiment, there is the possibility that the galvanic coating of the heat exchanger package is produced by an electroforming or electroplating process.
In einer besonders vorteilhaften Ausführungsform besteht die Möglichkeit, dass das Entformen des Wärmetauscherpakets zur Erzeugung des zumindest einen Wärmetauscherkerns durch Pyrolyse, Ausschmelzen oder Ätzen erfolgt. Dieser Entformungsschritt kann vorzugsweise ebenfalls automatisiert durchgeführt werden.In a particularly advantageous embodiment, there is the possibility that the Entfor men of the heat exchanger package to produce the at least one heat exchanger core by pyrolysis, melting or etching. This demolding step can preferably also be carried out automatically.
In einer bevorzugten Ausführungsform kann vorgesehen sein, dass durch eine Formgebung des Wärmetauscherkerns oder des Wärmetauscherkernmaterials Stützstrukturen für den Wärmetauscherkern erzeugt werden. Durch diese Maßnahme ist es nicht erforderlich, nachträglich und somit in einem zusätzlichen Fertigungsschritt entsprechende Stützstrukturen in den Wärmetauscherkern einzubringen.In a preferred embodiment, it can be provided that support structures for the heat exchanger core are produced by shaping the heat exchanger core or the heat exchanger core material. As a result of this measure, it is not necessary to introduce corresponding support structures into the heat exchanger core subsequently and thus in an additional production step.
In einer weiteren bevorzugten Ausführungsform wird vorgeschlagen, dass durch eine Formgebung des Wärmetauscherkerns oder des Wärmetauscherkernmaterials Anbindungs- und/oder Integrationsstrukturen für den Wärmetauscherkern erzeugt werden. Dadurch ist es ebenfalls nicht erforderlich, nachträglich und somit in einem zusätzlichen Fertigungsschritt entsprechende Anbindungs- und/oder Integrationsstrukturen in den Wärmetauscherkern einzubringen. Diese Anbindungs- beziehungsweise Integrationsstrukturen ermöglichen in vorteilhafter Weise insbesondere eine Anbindung beziehungsweise Integration in ein Fluidleitungssystem beziehungsweise ein zu kühlendes Bauteil.In a further preferred embodiment, it is proposed that connection and/or integration structures for the heat exchanger core be produced by shaping the heat exchanger core or the heat exchanger core material. As a result, it is also not necessary to introduce corresponding connection and/or integration structures into the heat exchanger core subsequently and thus in an additional production step. These connection or integration structures advantageously allow in particular a connection or integration into a fluid line system or a component to be cooled.
In einer Ausführungsform besteht die Möglichkeit, dass rohrförmige Mikrokanäle verwendet werden, die aus einem Kunststoff, insbesondere aus Polyetheretherketon, Polyetherketonketon oder Polyimid, gefertigt sind. Dadurch ist es möglich, den Mikrokanalbündel-Wärmetauscher besonders gewichtsoptimiert zu gestalten.In one embodiment, it is possible to use tubular microchannels made from a plastic, in particular from polyetheretherketone, polyetherketoneketone or polyimide. This makes it possible to design the microchannel bundle heat exchanger in a particularly weight-optimized manner.
In einer alternativen Ausführungsform kann auch vorgesehen sein, dass rohrförmige Mikrokanäle verwendet werden, die aus einem metallischen Werkstoff, insbesondere aus Edelstahl, Titan oder Aluminium, gefertigt sind.In an alternative embodiment, it can also be provided that tubular microchannels are used, which are made of a metallic material, in particular stainless steel, titanium or aluminum.
In einer besonders vorteilhaften Ausführungsform wird vorgeschlagen, dass durch das Entformen des Wärmetauscherpakets eine Mehrzahl von Wärmetauscherkernen aus dem Wärmetauscherpaket erzeugt wird. Somit ist es in vorteilhafter Weise möglich, insbesondere in einem automatisierten Prozess, aus einem einzelnen Wärmetauscherpaket mehrere Wärmetauscherkerne beziehungsweise Wärmetauscher herzustellen.In a particularly advantageous embodiment, it is proposed that a plurality of heat exchanger cores be produced from the heat exchanger package by demolding the heat exchanger package. It is thus advantageously possible, in particular in an automated process, to produce a plurality of heat exchanger cores or heat exchangers from a single heat exchanger pack.
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden deutlich anhand der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die beiliegenden Abbildungen. Dabei zeigen:
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1 eine perspektivische Ansicht eines flächigen Wärmetauscherelements, das gemäß einer ersten Variante ausgeführt ist, -
2 eine perspektivische Ansicht eines flächigen Wärmetauscherelements, das gemäß einer zweiten Variante ausgeführt ist, -
3 eine perspektivische Ansicht eines durch Zusammenrollen eines Wärmetauscherelements erzeugten Wärmetauscherpakets, -
4 einen Teil des Wärmetauscherpakets nach einer galvanischen Beschichtung, -
5 einen Teil des Wärmetauscherpakets bei einer Entformung eines Wärmetauscherkerns, -
6 eine perspektivische Ansicht eines Teils eines Wärmetauschers mit einem Wärmetauscherkern und integral damit ausgebildeten Anbindungs- und/oder Integrationsstrukturen.
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1 a perspective view of a flat heat exchanger element, which is designed according to a first variant, -
2 a perspective view of a flat heat exchanger element, which is designed according to a second variant, -
3 a perspective view of a heat exchanger package produced by rolling up a heat exchanger element, -
4 part of the heat exchanger package after electroplating, -
5 a part of the heat exchanger package when demoulding a heat exchanger core, -
6 a perspective view of part of a heat exchanger with a heat exchanger core and connection and/or integration structures formed integrally therewith.
Unter Bezugnahme auf
Die rohrförmigen Mikrokanäle 2 bestehen vorzugsweise aus einem flexiblen und elastischen Kunststoffmaterial. Dadurch ist es möglich, den Mikrokanalbündel-Wärmetauscher 1 besonders gewichtsoptimiert zu gestalten. Geeignete Kunststoffe sind insbesondere Polyetheretherketon, Polyetherketonketon oder Polyimid. Das Polyimid kann beispielsweise als Polysuccinimid (PSI) und/oder Polybismaleinimid (PBMI) und/oder Polyoxadiazobenzimidazol (PBO) und/oder Polyimidsulfon (PISO) und/oder Polymethacrylimid (PMI) und/oder als ein anderer Kunststoff mit einer Imidgruppe ausgebildet sein. Beispielsweise können die rohrförmigen Mikrokanäle 2 durch ein Extrusionsverfahren hergestellt werden. Das Extrudieren ist insbesondere dann vorgesehen, wenn die rohrförmigen Mikrokanäle aus PEEK oder PEKK bestehen. Alternativ können die rohrförmigen Mikrokanäle auch tauchgeformt sein. Ein solches Herstellungsverfahren ist vorzugsweise dann vorgesehen, wenn die rohrförmigen Mikrokanäle 2 aus Polyimid bestehen.The
Alternativ können die rohrförmigen Mikrokanäle 2 auch aus einem metallischen Werkstoff, wie zum Beispiel aus Edelstahl, Titan oder Aluminium, hergestellt sein. Ein Mikrokanalbündel-Wärmetauscher 1, bei dem die rohrförmigen Mikrokanäle 2 aus einem metallischen Werkstoff, insbesondere aus Edelstahl, Titan oder Aluminium, hergestellt sind, weist allerdings eine größere Masse als ein Mikrokanalbündel-Wärmetauscher 1 auf, bei dem die rohrförmigen Mikrokanäle 2 aus Kunststoff hergestellt sind.Alternatively, the
Vorzugsweise werden rohrförmige Mikrokanäle 2 verwendet, die einen Außendurchmesser zwischen 0,3 mm und 3 mm, insbesondere zwischen 0,5 mm und 2 mm, haben. Besonders bevorzugt sind Mikrokanäle 2 mit Außendurchmessern, die < 1 mm sind.
Für die Herstellung des Mikrokanalbündel-Wärmetauschers 1 können - insbesondere abhängig vom Durchmesser der rohrförmigen Mikrokanäle 2 - zum Beispiel mehrere hundert rohrförmige Mikrokanäle 2 bereitgestellt werden. Ausgestaltungen des Mikrokanalbündel-Wärmetauschers 1 mit mehr als 1000 rohrförmigen Mikrokanälen 2 sind grundsätzlich ebenfalls möglich. Vorzugsweise werden Mikrokanäle verwendet, die Wandstärken im Bereich von 1/10 mm aufweisen.Several hundred
Das flächige, medienführende Wärmetauscherelement 3 kann auf ganz unterschiedliche Weise durch ein formgebendes Verfahren, wie zum Beispiel durch ein Web-, Druck-, Spritz- oder Walzverfahren, hergestellt werden. Die rohrförmigen Mikrokanäle 2, die sich in einer ersten Richtung im Wesentlichen parallel zueinander erstrecken, werden durch mehrere Verbindungsmittel 4 miteinander verbunden, die sich in einer zweiten Richtung quer zu den rohrförmigen Mikrokanälen 2 erstrecken und in der ersten Richtung voneinander beabstandet sind. Die zweite Richtung, in der sich die Verbindungsmittel 4 erstrecken, ist also orthogonal zur ersten Richtung orientiert.The flat, medium-carrying heat exchanger element 3 can be produced in very different ways by a shaping process, such as a weaving, printing, spraying or rolling process. The
In
Unter weiterer Bezugnahme auf
Unter Bezugnahme auf
Nach diesem galvanischen Beschichtungsprozess des Wärmetauscherpakets 5 können unter Bezugnahme auf
Durch eine entsprechende Formgebung bei der Herstellung des Wärmetauscherkerns 6 können gegebenenfalls erforderliche Stützstrukturen des Wärmetausches 1 miterzeugt beziehungsweise in den Wärmetauscherkern 6 integriert werden.Appropriate shaping during the manufacture of the
Unter Bezugnahme auf
Das hier vorgestellte Verfahren ermöglicht eine einfache und kostengünstige Herstellung eines Mikrokanalbündel-Wärmetauschers 1, welcher zumindest einen Wärmetauscherkern 6 aufweist, in einem zumindest weitgehend automatisierten Prozess.The method presented here enables a simple and cost-effective production of a microchannel
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent Literature Cited
- WO 2010/141123 A2 [0003]WO 2010/141123 A2 [0003]
- WO 2009/089460 A2 [0003]WO 2009/089460 A2 [0003]
- WO 2012/141818 A1 [0003]WO 2012/141818 A1 [0003]
Claims (10)
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