EP1176380B1 - Echangeur de chaleur à plaques avec raccord - Google Patents

Echangeur de chaleur à plaques avec raccord Download PDF

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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
Application number
EP01110663A
Other languages
German (de)
English (en)
Other versions
EP1176380A2 (fr
EP1176380A3 (fr
Inventor
Klaus Kalbacher
Karl Schütterle
Hans-Dieter Härtel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Modine Manufacturing Co
Original Assignee
Modine Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1176380A2 publication Critical patent/EP1176380A2/fr
Publication of EP1176380A3 publication Critical patent/EP1176380A3/fr
Application granted granted Critical
Publication of EP1176380B1 publication Critical patent/EP1176380B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (7)

  1. Echangeur de chaleur à plaques comprenant une bride de raccordement (1), avec une ouverture d'écoulement (7) et avec plusieurs alésages (8) sur l'un de ses côtés, pour la fixation de la bride conjuguée, la bride de raccordement (1) étant connectée, au niveau de son autre côté, par le biais d'un conduit d'entrée ou de sortie (11) de l'échangeur de chaleur à plaques à sa plaque de recouvrement ou de base (4),
    caractérisé en ce que
    la bride de raccordement (1) est une pièce estampée ou emboutie avec des alésages de fixation traversants (8), qui est connectée soit par le biais d'une pièce intermédiaire (3) réalisée sous forme de pièce estampée et emboutie, soit par le biais d'une bordure (33) formée sur la bride de raccordement (1) par emboutissage, à la plaque de recouvrement ou de base (4) de l'échangeur de chaleur à plaques.
  2. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que la pièce intermédiaire (3) est connectée sous forme de pièce individuelle à la bride de raccordement (1) fabriquée sous forme de pièce estampée et est fixée par brasage au-dessus d'un canal d'entrée ou de sortie (11) de l'échangeur de chaleur à plaques sur la plaque de base ou de recouvrement (4).
  3. Echangeur de chaleur à plaques selon les revendications 1 et 2, caractérisé en ce que la bride de raccordement (1) se compose d'aluminium et en ce que des douilles filetées (10) en acier sont insérées dans les alésages de fixation (8), lesquelles s'étendent dans l'espace (a) formé par la pièce intermédiaire (3) entre la bride de raccordement (1) et la plaque de recouvrement ou de base (4) de l'échangeur de chaleur à plaques.
  4. Echangeur de chaleur à plaques selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce intermédiaire (3) se compose de tôle d'aluminium plaquée des deux côtés avec un agent à braser.
  5. Echangeur de chaleur à plaques selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce intermédiaire (3) est réalisée en forme de pot, avec une ouverture dans le fond du pot, laquelle est entourée par un col (15), le col (15) passant dans l'ouverture d'écoulement (7) de la bride (1), dans laquelle il est brasé et en ce que l'ouverture plus grande disposée en face du fond possède un bord avec lequel la pièce intermédiaire est brasée sur la plaque de base ou de recouvrement (4).
  6. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que la bride de raccordement (1) est formé avec la bordure (33) soit d'une pièce à partir de la plaque de base ou de recouvrement (4), soit sous forme de pièce individuelle en forme de pot par emboutissage.
  7. Echangeur de chaleur à plaques selon les revendications 1 et 6, caractérisé en ce qu'un insert en acier (13) avec une ouverture d'écoulement (7) et avec des ouvertures de passage (12), dans lesquelles est formé un filetage, est brasé et/ou fixé mécaniquement à la face inférieure de la bride de raccordement (1) dans une position telle que les alésages de fixation (8) coïncident avec les ouvertures de passage (12) et les ouvertures d'écoulement (7) dans la bride de raccordement (1) et dans l'insert en acier (13).
EP01110663A 2000-07-27 2001-05-02 Echangeur de chaleur à plaques avec raccord Expired - Lifetime EP1176380B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10036583 2000-07-27
DE10036583A DE10036583A1 (de) 2000-07-27 2000-07-27 Anschluß für Plattenwärmetauscher

Publications (3)

Publication Number Publication Date
EP1176380A2 EP1176380A2 (fr) 2002-01-30
EP1176380A3 EP1176380A3 (fr) 2002-08-07
EP1176380B1 true EP1176380B1 (fr) 2004-03-03

Family

ID=7650394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110663A Expired - Lifetime EP1176380B1 (fr) 2000-07-27 2001-05-02 Echangeur de chaleur à plaques avec raccord

Country Status (4)

Country Link
EP (1) EP1176380B1 (fr)
AT (1) ATE261101T1 (fr)
DE (2) DE10036583A1 (fr)
ES (1) ES2217053T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049988A1 (de) * 2004-10-14 2006-04-20 Modine Manufacturing Co., Racine Plattenwärmetauscher

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7134106U (de) * 1972-02-10 Schulz W Anschweißflansch für Doppelmantel -Rohrleitungen
DE2807444A1 (de) * 1978-02-22 1979-08-23 Schulz Wilhelm Rohrleitungsflansch
EP0025070B1 (fr) * 1979-09-07 1984-01-18 Wilhelm Schulz Apparate- und Rohrleitungsbau Edelstahl-Press- und Stanzwerk GmbH Raccord à brides
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 (ja) * 1992-05-22 1996-02-28 昭和アルミニウム株式会社 熱交換器
DE4314808C2 (de) * 1993-05-05 2003-10-30 Behr Gmbh & Co Plattenwärmetauscher, insbesondere Öl/Kühlmittel-Kühler
DE19628561C1 (de) * 1996-07-16 1997-09-04 Laengerer & Reich Gmbh & Co Plattenwärmetauscher
DE19654362B4 (de) * 1996-12-24 2007-12-06 Behr Gmbh & Co. Kg Wärmeübertrageranordnung
SE9702420L (sv) * 1997-06-25 1998-12-26 Alfa Laval Ab Plattvärmeväxlare

Also Published As

Publication number Publication date
ATE261101T1 (de) 2004-03-15
EP1176380A2 (fr) 2002-01-30
DE10036583A1 (de) 2002-02-07
DE50101583D1 (de) 2004-04-08
ES2217053T3 (es) 2004-11-01
EP1176380A3 (fr) 2002-08-07

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