EP1176380B1 - Plate heat exchanger with connecting flange - Google Patents
Plate heat exchanger with connecting flange Download PDFInfo
- Publication number
- EP1176380B1 EP1176380B1 EP01110663A EP01110663A EP1176380B1 EP 1176380 B1 EP1176380 B1 EP 1176380B1 EP 01110663 A EP01110663 A EP 01110663A EP 01110663 A EP01110663 A EP 01110663A EP 1176380 B1 EP1176380 B1 EP 1176380B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- plate heat
- connecting flange
- flange
- intermediate piece
- 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.)
- Expired - Lifetime
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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
- 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
- F28D9/0043—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
Definitions
- the invention relates to a plate heat exchanger with a connection flange, with a flow opening and a plurality of bores on one side for fastening the counter flange, the connection flange on its other side being metallically connected to its cover or base plate via an inlet or outlet channel of the plate heat exchanger.
- connecting flanges are extruded parts which, after being separated from the pressed strand, which has approximately the contours of the connecting flange, have to be machined. (DE 196 54 362 A1)
- the mechanical processing is relatively expensive, which is why the entire connecting flange is often the most expensive individual part of the plate heat exchanger.
- Connection flanges are also produced as a die-cast product, for example made of aluminum, which, however, are also expensive and still cause certain difficulties in the metallic connection, for example when soldering, to the cover or base plate. Connection flanges made of aluminum require a comparatively greater thickness than those made of steel in order to have the same durability.
- DE 37 16 087 shows a flange produced as a die-cast product.
- connecting flanges are manufactured using stamping technology or as a stamped and drawn part, which also have to be processed after the plate heat exchanger has been soldered.
- EP 623 798 A2 does not show a connection flange with bores to which the counter flange of a media-carrying line can be connected.
- the object of the invention is to design the plate heat exchanger with a connecting flange more cost-effectively and to provide it with a long service life.
- the connecting flange is a stamped or deep-drawn part with through fastening holes, which is either via an intermediate piece designed as a stamped and drawn part or via a molded on the connecting flange by means of deep drawing with the cover or base plate of the plate heat exchanger is connected.
- Stamped and drawn parts can be manufactured very economically, especially for mass products, which means that the cost per connection flange can be reduced by more than 60%.
- the design of the intermediate piece as a stamped and drawn part or the border formed on the connecting flange allow the use of thinner deck and / or base plates.
- Known connecting flanges designed as a solid block require a certain minimum thickness of the cover or base plate for a quality solder connection. The minimum thickness is reduced by the invention.
- Claims 2 to 5 relate to a variant in which a stamped and drawn part, referred to as an intermediate piece, and a stamped connecting flange are used, while claims 6 and 7 relate to an alternative embodiment of the connecting flange, in which the intermediate piece is dispensed with because the flange itself is designed as a deep-drawn part. Both connection variants could also be used on the same plate heat exchanger.
- Claim 2 provides that the intermediate piece is connected as an individual part to the connecting flange produced as a stamped part and is attached to the base or cover plate by means of soldering via an inlet or outlet channel of the plate heat exchanger.
- Claim 3 describes that the connecting flange consists of aluminum and that threaded bushings made of steel are used in the fastening bores.
- the connecting flange can be made substantially thinner, which saves weight.
- the distance formed by the intermediate piece between the flange and the cover or base plate of the plate heat exchanger is used in such a way that the threaded bushes extend into this distance.
- the thread length that is important for the durability of screw connections can be varied in accordance with the required holding forces by selecting threaded bushings that are optimal for the application.
- the intermediate piece is to be a sheet metal part soldered on both sides, in particular made of aluminum. It is thereby achieved that the top or base plate of the plate heat exchanger does not have to be iotplated on its outside.
- the outer solder plating on the cover or base plate has proven to be disadvantageous in many cases because there are usually contact points of the soldering device which lead to an undesired metallic connection between the soldering device and the plate heat exchanger.
- the connecting flange according to the invention has less overall mass than a solid flange block. The energy consumption during soldering is largely determined by the total mass to be connected.
- the connecting flange according to the invention is prefabricated and assembled as a part with the cover or base plate.
- the intermediate piece is punched out of sheet metal soldered on both sides and formed into a pot-like shape by deep drawing.
- the intermediate piece In the bottom of the pot-like shape there is an opening which correlates with the flow opening in the flange and which is surrounded by a circumferential collar.
- the intermediate piece With this collar, the intermediate piece is inserted into the flow opening of the flange and by reshaping the collar, in particular by turning the projecting collar outward, the connecting flange and the intermediate piece are connected to one another.
- the connection flange can already be provided with the threaded inserts after punching out, i.e. before joining with the intermediate piece.
- the threaded inserts are "provisionally" attached, for example by riveting, pressing or the like in the holes in the flange plate.
- connection flange which is prefabricated as described, is then also “provisionally”, ie pre-fixed for soldering, fastened in the cover and / or the base plate via an inflow or outflow channel.
- the plate heat exchanger is then assembled in a known and not relevant manner with the addition of the base plate and / or cover plate provided with connections, in order then to be soldered as a compact block. Both the solder connection between the flange and the intermediate piece, between the threaded bushing and the bore and between the cover and / or base plate and the intermediate piece are produced.
- connection flange with the border is formed either from the base or cover plate or as an individual part like a pot by means of deep drawing. If the connection flange is manufactured as a single part, an edge or the like is formed on the edge. With this edge, the connection flange is soldered over a channel in the cover or base plate. A steel insert with through openings, into which a thread is formed, is soldered to the underside of the flange in such a position and / or mechanically fastened that the fastening bores match the through openings. Of course, both flow openings also match.
- the contours of the steel insert preferably correspond approximately to those of the connecting flange. They can have an oval or similar shape. To reduce the weight, however, it is possible to optimize the steel insert in terms of thickness and circumferential design.
- connection flange 1 is arranged relatively close to the edge of the plate heat exchanger, so that the connection flange 1 projects beyond the edge of the plate heat exchanger. Such positioning of the connection is necessary in some cases because it is determined by the installation requirements or connection conditions. It can be achieved particularly cheaply and easily by the embodiment of the connection shown in FIG. 2.
- the connection flange 1 has been punched out of an aluminum sheet. It has two continuous fastening openings 2. A threaded insert 10 made of steel was inserted into each of these fastening bores 2 and fastened by caulking. The flange 1 has a flow opening 7 .
- the intermediate piece 3 was punched out of an aluminum sheet soldered on both sides and shaped like a pot by deep drawing.
- the bottom of the pot-like intermediate piece 3 has an opening which is surrounded by a collar 15 .
- This collar 15 fits exactly into the flow opening 7 of the connecting flange 1 and was used there.
- the upper edge of the collar 15 has been folded outwards so that it bears positively on the edge of the flow opening 7 .
- Opposite the floor is the large opening of the pot-like intermediate piece 3, which is also surrounded by an edge.
- the connection prefabricated as described so far is placed with the edge of the large opening of the intermediate piece 3 or the pot on the channel 11 in the cover plate 4 of the plate heat exchanger and provisionally fixed in a suitable manner so that the position does not change until the soldering process is complete can. It can also be seen from FIG.
- connection conditions of the plate heat exchanger allow it the connector can be positioned as shown in FIG. 5. He is lying closer to the center of the plate heat exchanger than the connection from FIG. 1.
- connection flange 1 is a deep-drawn part made of solder-coated aluminum sheet, with a border 33 and a folded edge at the border 33. With this edge, the connection flange 1 is placed over the channel 11 on the cover plate 4 and soldered as described.
- the connecting flange 1 is formed in one piece by deep drawing from the cover plate 4 .
- the steel insert 13 is inserted and fastened as described before the cover plate 4 is placed on the heat exchanger.
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- 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)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
Die Erfindung betrifft einen Plattenwärmetauscher mit Anschlussflansch, mit
einer Strömungsöffnung und mehreren Bohrungen an seiner einen Seite zur
Befestigung des Gegenflansches, wobei der Anschlussflansch an seiner
anderen Seite über einen Ein - oder Austrittskanal des Plattenwärmetauschers
mit dessen Deck - oder Grundplatte metallisch verbunden ist.
Gewöhnlich sind Anschlussflansche Strangpressteile, die, nach dem Abtrennen
von dem gepressten Strang, der etwa die Konturen des Anschlussflansches
aufweist, mechanisch bearbeitet werden müssen. ( DE 196 54 362 A1) Die
mechanische Bearbeitung ist relativ teuer, weshalb der gesamte
Anschlussflansch oft das teuerste Einzelteil des Plattenwärmetauschers darstellt.
Anschlussflansche werden auch als Druckgusserzeugnis, z.B. aus Aluminium,
hergestellt, die jedoch ebenfalls kostenaufwendig sind und immer noch gewisse
Schwierigkeiten bei der metallischen Verbindung, beispielsweise beim Löten, mit
der Deck - oder Grundplatte verursachen. Anschlussflansche aus Aluminium
benötigen eine vergleichsweise größere Dicke als solche aus Stahl, um die
gleiche Haltbarkeit zu besitzen. Die DE 37 16 087 zeigt einen als
Druckgusserzeugnis hergestellten Flansch. Ferner werden Anschlussflansche
umformtechnisch als Stanzteil oder als Stanz - und Ziehteil hergestellt, die nach
der löttechnischen Herstellung des Plattenwärmetauschers ebenfalls noch
bearbeitet werden müssen.
Das EP 623 798 A2 zeigt keinen Anschlussflansch mit Bohrungen, an dem der
Gegenflansch einer medienführenden Leitung anschließbar ist. Dort ist jedoch
der innere Aufbau eines Plattenwärmetauschers mit Anschlussstrukturen des
Plattenwärmetauschers selbst beschrieben und abgebildet worden.
Die Aufgabe der Erfindung besteht darin, den Plattenwärmetauscher mit
Anschlussflansch kostengünstiger zu gestalten und ihn mit einer hohen
Haltbarkeit auszustatten.The invention relates to a plate heat exchanger with a connection flange, with a flow opening and a plurality of bores on one side for fastening the counter flange, the connection flange on its other side being metallically connected to its cover or base plate via an inlet or outlet channel of the plate heat exchanger.
Usually connecting flanges are extruded parts which, after being separated from the pressed strand, which has approximately the contours of the connecting flange, have to be machined. (DE 196 54 362 A1) The mechanical processing is relatively expensive, which is why the entire connecting flange is often the most expensive individual part of the plate heat exchanger. Connection flanges are also produced as a die-cast product, for example made of aluminum, which, however, are also expensive and still cause certain difficulties in the metallic connection, for example when soldering, to the cover or base plate. Connection flanges made of aluminum require a comparatively greater thickness than those made of steel in order to have the same durability. DE 37 16 087 shows a flange produced as a die-cast product. In addition, connecting flanges are manufactured using stamping technology or as a stamped and drawn part, which also have to be processed after the plate heat exchanger has been soldered.
EP 623 798 A2 does not show a connection flange with bores to which the counter flange of a media-carrying line can be connected. However, the internal structure of a plate heat exchanger with connection structures of the plate heat exchanger itself has been described and illustrated there.
The object of the invention is to design the plate heat exchanger with a connecting flange more cost-effectively and to provide it with a long service life.
Die erfindungsgemäße Lösung sieht vor, daß der Anschlussflansch ein Stanz- oder Tiefziehteil mit durchgehenden Befestigungsbohrungen ist, der entweder über ein als Stanz - und Ziehteil ausgebildetes Zwischenstück oder über eine am Anschlussflansch mittels Tiefziehen angeformte Umrandung mit der Deck- oder Grundplatte des Plattenwärmetauschers verbunden ist. The solution according to the invention provides that the connecting flange is a stamped or deep-drawn part with through fastening holes, which is either via an intermediate piece designed as a stamped and drawn part or via a molded on the connecting flange by means of deep drawing with the cover or base plate of the plate heat exchanger is connected.
Stanz - und Ziehteile sind insbesondere für Massenprodukte sehr kostengünstig
herstellbar, wodurch die Kosten pro Anschlussflansch um mehr als 60% gesenkt
werden können. Die Ausbildung des Zwischenstücks als Stanz - und Ziehteil
oder die am Anschlussflansch angeformte Umrandung erlauben den Einsatz
dünnerer Deck und/oder Grundplatten. Als Massivblock ausgebildete bekannte
Anschlussflansche erfordern für eine qualitätsgerechte Lötverbindung eine
gewisse Mindestdicke der Deck - oder Grundplatte. Durch die Erfindung wird die
Mindestdicke reduziert.
Die Ansprüche 2 bis 5 beziehen sich auf eine Variante, in der ein als
Zwischenstück bezeichnetes Stanz - und Ziehteil und ein gestanzter
Anschlussflansch verwendet wird, während die Ansprüche 6 und 7 eine
alternative Ausführung des Anschlussflansches betreffen, in der auf das
Zwischenstück verzichtet wird, weil der Flansch selbst als Tiefziehteil ausgeführt
ist. Beide Anschlussvarianten könnten auch an ein und demselben
Plattenwärmetauscher verwendet werden.
Anspruch 2 sieht vor, dass das Zwischenstück als Einzelteil mit dem als Stanzteil
hergestellten Anschlussflansch verbunden und über einem Ein-oder
Austrittskanal des Plattenwärmetauschers an der Grund-oder Deckplatte mittels
Löten befestigt ist.Stamped and drawn parts can be manufactured very economically, especially for mass products, which means that the cost per connection flange can be reduced by more than 60%. The design of the intermediate piece as a stamped and drawn part or the border formed on the connecting flange allow the use of thinner deck and / or base plates. Known connecting flanges designed as a solid block require a certain minimum thickness of the cover or base plate for a quality solder connection. The minimum thickness is reduced by the invention.
Anspruch 3 beschreibt, dass der Anschlussflansch aus Aluminium besteht und
dass in den Befestigungsbohrungen Gewindebuchsen aus Stahl eingesetzt sind.
Dadurch kann der Anschlussflansch wesentlich dünner ausgebildet sein,
wodurch Gewicht gespart wird. Durch den Einsatz von standardisierten
Gewindebuchsen aus Stahl können bei gleicher Einschraubtiefe höhere
Drehmomente realisiert bzw. höhere Befestigungskräfte übertragen werden.
Der durch das Zwischenstück gebildete Abstand zwischen dem Flansch und der
Deck - oder Grundplatte des Plattenwärmetauschers wird in der Form genutzt,
dass sich die Gewindebuchsen in diesen Abstand hinein erstrecken. Dadurch
kann die für die Haltbarkeit von Schraubverbindungen wichtige Gewindelänge
entsprechend den geforderten Haltekräften variiert werden, indem
Gewindebuchsen ausgewählt werden, die für den Einsatzfall optimal sind.
Das Zwischenstück soll in einer bevorzugten Variante ein beidseitig lotplattiertes
Blechteil, insbesondere aus Aluminium sein. Dadurch wird erreicht, dass die
Deck - oder Grundplatte des Plattenwärmetauschers an ihrer Außenseite nicht
Iotplattiert ausgeführt sein muß. Die äußere Lotplattierung an der Deck - oder
Grundplatte hat sich in vielen Fällen als nachteilig herausgestellt, weil dort
gewöhnlich Anlagepunkte der Lötvorrichtung vorhanden sind, die zu einer nicht
gewünschten metallischen Verbindung zwischen der Lötvorrichtung und dem
Plattenwärmetauscher führen.
Der erfindungsgemäße Anschlussflansch besitzt insgesamt weniger Masse als
ein massiver Flanschblock. Der Energieverbrauch beim Löten wird wesentlich
von der zu verbindenden Gesamtmasse bestimmt.
Der erfindungsgemäße Anschlussflansch wird vorgefertigt und als ein Teil mit
der Deck - oder Grundplatte zusammengefügt. Dazu wird das Zwischenstück
aus beidseitig lotplattiertem Blech ausgestanzt und zu einer topfartigen Gestalt
mittels Tiefziehen geformt. Im Boden der topfartigen Gestalt befindet sich eine
mit der Strömungsöffnung in dem Flansch korrelierende Öffnung, die von einem
umlaufenden Kragen umgeben ist. Mit diesem Kragen wird das Zwischenstück in
die Strömungsöffnung des Flansches gesteckt und durch Umformung des
Kragens, insbesondere durch Umlegen des überstehenden Kragens nach
außen, werden der Anschlussflansch und das Zwischenstück miteinander
verbunden. Der Anschlussflansch kann bereits nach dem Ausstanzen, also vor
dem Zusammenfügen mit dem Zwischenstück, mit den Gewindeeinsätzen
versehen werden. Dabei werden die Gewindeeinsätze "provisorisch"
beispielsweise durch Einnieten, Einpressen oder dergleichen in den Bohrungen
der Flanschplatte befestigt. In der Massenproduktion können solche Anschlüsse
nahezu vollautomatisch und deshalb kostengünstig hergestellt und angeboten
werden.
Der wie beschrieben vorgefertigte Anschlussflansch wird dann ebenfalls
"provisorisch", d. h. zum Löten vorfixiert, über einem Ein - oder Ausströmkanal in
der Deck - und/oder der Grundplatte befestigt. Anschließend wird der
Plattenwärmetauscher in bekannter und hier nicht relevanter Weise unter
Hinzufügung der mit Anschlüssen versehenen Grund - und/oder Deckplatte
zusammengefügt, um danach als kompakter Block verlötet zu werden. Dabei
wird sowohl die Lötverbindung zwischen dem Flansch und dem Zwischenstück,
zwischen Gewindebuchse und Bohrung und zwischen Deck-und/oder
Grundplatte und dem Zwischenstück hergestellt.
The distance formed by the intermediate piece between the flange and the cover or base plate of the plate heat exchanger is used in such a way that the threaded bushes extend into this distance. As a result, the thread length that is important for the durability of screw connections can be varied in accordance with the required holding forces by selecting threaded bushings that are optimal for the application.
In a preferred variant, the intermediate piece is to be a sheet metal part soldered on both sides, in particular made of aluminum. It is thereby achieved that the top or base plate of the plate heat exchanger does not have to be iotplated on its outside. The outer solder plating on the cover or base plate has proven to be disadvantageous in many cases because there are usually contact points of the soldering device which lead to an undesired metallic connection between the soldering device and the plate heat exchanger.
The connecting flange according to the invention has less overall mass than a solid flange block. The energy consumption during soldering is largely determined by the total mass to be connected.
The connecting flange according to the invention is prefabricated and assembled as a part with the cover or base plate. For this purpose, the intermediate piece is punched out of sheet metal soldered on both sides and formed into a pot-like shape by deep drawing. In the bottom of the pot-like shape there is an opening which correlates with the flow opening in the flange and which is surrounded by a circumferential collar. With this collar, the intermediate piece is inserted into the flow opening of the flange and by reshaping the collar, in particular by turning the projecting collar outward, the connecting flange and the intermediate piece are connected to one another. The connection flange can already be provided with the threaded inserts after punching out, i.e. before joining with the intermediate piece. The threaded inserts are "provisionally" attached, for example by riveting, pressing or the like in the holes in the flange plate. In mass production, such connections can be manufactured and offered almost fully automatically and therefore inexpensively.
The connection flange, which is prefabricated as described, is then also “provisionally”, ie pre-fixed for soldering, fastened in the cover and / or the base plate via an inflow or outflow channel. The plate heat exchanger is then assembled in a known and not relevant manner with the addition of the base plate and / or cover plate provided with connections, in order then to be soldered as a compact block. Both the solder connection between the flange and the intermediate piece, between the threaded bushing and the bore and between the cover and / or base plate and the intermediate piece are produced.
Die bereits erwähnte alternative Lösung sieht gemäß den Ansprüchen 6 und 7
vor, dass der Anschlussflansch mit der Umrandung entweder aus der Grund-
oder Deckplatte oder als Einzelteil topfartig mittels Tiefziehen ausgeformt ist.
Wenn der Anschlussflansch als Einzelteil hergestellt ist, ist an der Umrandung
ein Rand oder dgl. angeformt. Mit diesem Rand wird der Anschlussflansch über
einem Kanal in der Deck-oder Grundplatte angelötet.
Ein Stahleinsatz mit Durchgangsöffnungen, in die ein Gewinde eingeformt ist, ist
an der Unterseite des Flansches in einer solchen Position angelötet und/oder
mechanisch befestigt, dass die Befestigungsbohrungen mit den
Durchgangsöffnungen übereinstimmen. Selbstverständlich stimmen auch beide
Strömungsöffnungen überein. Vorzugsweise entsprechen die Konturen des
Stahleinsatzes etwa denen des Anschlussflansches. Sie können eine ovale oder
eine ähnliche Form besitzen. Zur Reduzierung des Gewichts ist es jedoch
möglich, den Stahleinsatz hinsichtlich Dicke und Gestaltung des Umfangs zu
optimieren.The alternative solution already mentioned provides according to
A steel insert with through openings, into which a thread is formed, is soldered to the underside of the flange in such a position and / or mechanically fastened that the fastening bores match the through openings. Of course, both flow openings also match. The contours of the steel insert preferably correspond approximately to those of the connecting flange. They can have an oval or similar shape. To reduce the weight, however, it is possible to optimize the steel insert in terms of thickness and circumferential design.
Die Erfindung wird nachfolgend in zwei Ausführungsbeispielen anhand der
beigefügten Zeichnungen beschrieben.
Die anderen Kanäle 11 sind ebenfalls mit (nicht gezeigten) Anschlüssen
ausgestattet. Der Anschlussflansch 1 ist relativ dicht am Rand des
Plattenwärmetauschers angeordnet, so dass der Anschlussflansch 1 den Rand
des Plattenwärmetauschers überragt. Eine solche Positionierung des
Anschlusses ist in manchen Fällen erforderlich, weil sie durch die
Einbauforderungen bzw. Anschlussbedingungen bestimmt wird. Sie kann
besonders günstig und einfach durch die in Fig. 2 gezeigte Ausführung des
Anschlusses erreicht werden. Der Anschlussflansch 1 ist aus einem
Aluminiumblech ausgestanzt worden. Er besitzt zwei durchgehende
Befestigungsöffnungen 2. In diese Befestigungsbohrungen 2 wurde je ein
Gewindeeinsatz 10 aus Stahl eingefügt und durch Verstemmen befestigt. Der
Flansch 1 weist eine Strömungsöffnung 7 auf. Aus einem beidseitig lotplattierten
Aluminiumblech wurde das Zwischenstück 3 ausgestanzt und mittels Tiefziehen
topfartig umgeformt. Der Boden des topfartigen Zwischenstücks 3 besitzt eine
Öffnung, die von einem Kragen 15 umgeben ist. Dieser Kragen 15 passt exakt in
die Strömungsöffnung 7 des Anschlussflansches 1 und wurde dort eingesetzt.
Der obere Rand des Kragens 15 wurde nach außen umgelegt, so dass er
formschlüssig an dem Rand der Strömungsöffnung 7 anliegt. Gegenüber dem
Boden befindet sich die große Öffnung des topfartigen Zwischenstücks 3, die
ebenfalls von einem Rand umgeben ist. Der bis hierher wie beschrieben
vorgefertigte Anschluss wird mit dem Rand der großen Öffnung des
Zwischenstücks 3 bzw. des Topfes auf den Kanal 11 in der Deckplatte 4 des
Plattenwärmetauschers aufgesetzt und in geeigneter Weise provisorisch fixiert,
damit sich die Position bis zum Abschluss des Lötvorgangs nicht verändern
kann. Aus Fig. 2 ist auch zu erkennen, dass zwischen dem Anschlussflansch 1
und der Deckplatte 4 ein Abstand a vorhanden ist, dessen Größe durch die
Dimensionierung des Zwischenstücks 3 bestimmt ist. Dadurch wurde Raum zur
Verfügung gestellt, in den sich die Gewindeeinsätze 10 erstrecken. Es ist also
möglich, die für den jeweiligen Anwendungsfall passenden Gewindeeinsätze 10
auszuwählen, wobei stets der gleiche Flansch 1 verwendet werden kann.The
Wenn die Anschlussbedingungen des Plattenwärmetauschers es zulassen, kann der Anschluss so positioniert werden, wie es in der Fig. 5 gezeigt ist. Er liegt näher zum Zentrum des Plattenwärmetauschers als der Anschluss aus Fig. 1. If the connection conditions of the plate heat exchanger allow it the connector can be positioned as shown in FIG. 5. He is lying closer to the center of the plate heat exchanger than the connection from FIG. 1.
Für solche Anschlusspositionen bieten sich die in Fig. 3 oder 4 gezeigten
Ausführungen an. Es sei jedoch noch einmal betont, dass z. B. zwei Anschlüsse
des Plattenwärmetauschers gemäß Fig. 2 ausgebildet sein könnten und die
anderen zwei gemäß den nachfolgend beschriebenen Varianten. Genauso gut
könnte lediglich ein einziger Anschluss erfindungsgemäß ausgebildet und alle
anderen Anschlüsse könnten anders gestaltet sein. In Fig. 3 ist der
Anschlussflansch 1 ein Tiefziehteil aus lotbeschichtetem Aluminiumblech, mit
einer Umrandung 33 und einem umgelegten Rand an der Umrandung 33. Mit
diesem Rand wird der Anschlussflansch 1 über dem Kanal 11 auf der Deckplatte
4 aufgesetzt und wie beschrieben verlötet. Zuvor jedoch wurde an der Innenseite
des Flansches 1 ein etwa die Form des Flansches 1 aufweisender Stahleinsatz
13 mit Gewindeöffnungen 12 mechanisch befestigt und zwar so, daß die
Gewindeöffnungen 12 des Stahleinsatzes 13 und selbstverständlich auch die
Strömungsöffnung 7 im Stahleinsatz 13 mit den entsprechenden Öffnungen 7; 8
im Anschlussflansch 1 übereinstimmen.
Im Unterschied zu Fig. 3 wurde in Fig. 4 vorgesehen, dass der Anschlussflansch
1 einstückig mittels Tiefziehen aus der Deckplatte 4 ausgebildet ist. Der
Stahleinsatz 13 wird in diesem Fall wie beschrieben eingesetzt und befestigt,
bevor die Deckplatte 4 auf den Wärmetauscher aufgesetzt wird.The designs shown in FIG. 3 or 4 lend themselves to such connection positions. However, it should be emphasized again that e.g. B. two connections of the plate heat exchanger according to FIG. 2 could be formed and the other two according to the variants described below. Just one connection could equally well be designed according to the invention and all other connections could be designed differently. In Fig. 3, the
In contrast to FIG. 3, it was provided in FIG. 4 that the connecting
Claims (7)
- Plate heat exchanger with a connecting flange (1), with a flow orifice (7) and with a plurality of bores (8) on one of its sides, for fastening the counterflange, the connecting flange (1) being connected on its other side, above an inlet or outlet duct (11) of the plate heat exchanger, to the cover plate or baseplate (4) of the latter, characterized in that the connecting flange (1) is a stamped or deep-drawn part with continuous fastening bores (8), which is connected to the cover plate or baseplate (4) of the plate heat exchanger either via an intermediate piece (3) produced as a stamped or deep-drawn part or via a border (33) integrally formed on the connecting flange (1) by means of deep-drawing.
- Plate heat exchanger according to Claim 1, characterized in that the intermediate piece (3) is connected as an individual part to the connecting flange (1) produced as a stamped part and is fastened to the baseplate or cover plate (4), above an inlet or outlet duct (11), by means of soldering.
- Plate heat exchanger according to Claims 1 and 2, characterized in that the connecting flange (1) consists of aluminium, and the fastening bores (8) have inserted in them steel threaded bushes (10) which extend into the clearance (a), formed by the intermediate piece (3), between the connecting flange (1) and the cover plate or baseplate (4) of the plate heat exchanger.
- Plate heat exchanger according to one of the preceding claims, characterized in that the intermediate piece (3) consists of sheet aluminium solder-plated on both sides.
- Plate heat exchanger according to one of the preceding claims, characterized in that the intermediate piece (3) has a pot-like design, with, in the bottom of the pot, an orifice which is surrounded by a collar (15), the collar (15) being fitted into the flow orifice (7) of the flange (1) in which it is soldered, and in that the larger orifice arranged opposite the bottom possesses a rim, by means of which the intermediate piece is soldered to the baseplate or cover plate (4).
- Plate heat exchanger according to Claim 1, characterized in that the connecting flange (1), together with the border (33), is shaped either in one piece out of the baseplate or cover plate (4) or as an individual part in the form of a pot by means of deep-drawing.
- Plate heat exchanger according to Claims 1 and 6, characterized in that a steel insert (13) with a flow orifice (7) and with passage orifices (12), into which a thread is integrally formed, is soldered and/or mechanically fastened to the underside of the connecting flange (1) in such a position that the fastening bores (8) coincide with the passage orifices (12) and the flow orifices (7) in the connecting flange (1) and in the steel insert (13) coincide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10036583 | 2000-07-27 | ||
DE10036583A DE10036583A1 (en) | 2000-07-27 | 2000-07-27 | Connection for plate heat exchangers |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1176380A2 EP1176380A2 (en) | 2002-01-30 |
EP1176380A3 EP1176380A3 (en) | 2002-08-07 |
EP1176380B1 true EP1176380B1 (en) | 2004-03-03 |
Family
ID=7650394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01110663A Expired - Lifetime EP1176380B1 (en) | 2000-07-27 | 2001-05-02 | Plate heat exchanger with connecting flange |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1176380B1 (en) |
AT (1) | ATE261101T1 (en) |
DE (2) | DE10036583A1 (en) |
ES (1) | ES2217053T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004049988A1 (en) * | 2004-10-14 | 2006-04-20 | Modine Manufacturing Co., Racine | Plate heat exchanger |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7134106U (en) * | 1972-02-10 | Schulz W | Weld-on flange for double-jacket pipelines | |
DE2807444A1 (en) * | 1978-02-22 | 1979-08-23 | Schulz Wilhelm | Welded-on pipe flange - has bosses and/or ribs on pressure face to allow water drainage |
EP0025070B1 (en) * | 1979-09-07 | 1984-01-18 | Wilhelm Schulz Apparate- und Rohrleitungsbau Edelstahl-Press- und Stanzwerk GmbH | Flange |
DE3716087C1 (en) * | 1987-05-14 | 1988-07-14 | Laengerer & Reich Kuehler | Method of making blind tapped holes in connecting flanges of heat exchangers |
US4872578A (en) * | 1988-06-20 | 1989-10-10 | Itt Standard Of Itt Corporation | Plate type heat exchanger |
JPH0818124B2 (en) * | 1992-05-22 | 1996-02-28 | 昭和アルミニウム株式会社 | Heat exchanger |
DE4314808C2 (en) * | 1993-05-05 | 2003-10-30 | Behr Gmbh & Co | Plate heat exchanger, in particular oil / coolant cooler |
DE19628561C1 (en) * | 1996-07-16 | 1997-09-04 | Laengerer & Reich Gmbh & Co | Plate heat exchanger for heat exchanging media in separated circuits |
DE19654362B4 (en) * | 1996-12-24 | 2007-12-06 | Behr Gmbh & Co. Kg | The heat exchanger |
SE9702420L (en) * | 1997-06-25 | 1998-12-26 | Alfa Laval Ab | plate heat exchangers |
-
2000
- 2000-07-27 DE DE10036583A patent/DE10036583A1/en not_active Withdrawn
-
2001
- 2001-05-02 EP EP01110663A patent/EP1176380B1/en not_active Expired - Lifetime
- 2001-05-02 DE DE50101583T patent/DE50101583D1/en not_active Expired - Fee Related
- 2001-05-02 ES ES01110663T patent/ES2217053T3/en not_active Expired - Lifetime
- 2001-05-02 AT AT01110663T patent/ATE261101T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE261101T1 (en) | 2004-03-15 |
EP1176380A2 (en) | 2002-01-30 |
DE10036583A1 (en) | 2002-02-07 |
DE50101583D1 (en) | 2004-04-08 |
ES2217053T3 (en) | 2004-11-01 |
EP1176380A3 (en) | 2002-08-07 |
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