EP1176380A2 - Raccord pour échangeur de chaleur à plaques - Google Patents

Raccord pour échangeur de chaleur à plaques Download PDF

Info

Publication number
EP1176380A2
EP1176380A2 EP01110663A EP01110663A EP1176380A2 EP 1176380 A2 EP1176380 A2 EP 1176380A2 EP 01110663 A EP01110663 A EP 01110663A EP 01110663 A EP01110663 A EP 01110663A EP 1176380 A2 EP1176380 A2 EP 1176380A2
Authority
EP
European Patent Office
Prior art keywords
flange
heat exchanger
plate
intermediate piece
connection
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.)
Granted
Application number
EP01110663A
Other languages
German (de)
English (en)
Other versions
EP1176380A3 (fr
EP1176380B1 (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 connection for plate heat exchangers, consisting of a flange with a flow opening and a plurality of bores on one side for fastening the counter flange, the flange on its other side being metallically connected to the cover or base plate 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.
  • the object of the invention is to make the connection cheaper design and provide it with a high durability.
  • the flange of the connection is a stamped or deep-drawn part with continuous fastening bores, which is connected to the cover or base plate of the plate heat exchanger either via an intermediate piece designed as a stamped and drawn part or via a border formed on the flange by means of partial drawing is.
  • Stamped and drawn parts can be manufactured very inexpensively, especially for mass products, which means that the cost per connection 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 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 and a stamped flange is used, while claims 6 and 7 relate to an alternative embodiment of the connection in which the intermediate part 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 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 flange consists of aluminum and that threaded bushings made of steel are used in the mounting holes. As a result, the flange can be made much thinner, which saves weight. By using standardized steel threaded bushings, higher torques can be achieved or higher fastening forces can be transmitted with the same screw-in depth.
  • 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. This allows the thread length, which is important for the durability of screw connections, to 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 cover or base plate of the plate heat exchanger does not have to be solder-plated on the 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 connection 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 connection 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 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 is inserted into the flow opening of the flange and by reshaping the collar, in particular by turning the projecting collar outward, the flange and intermediate piece are connected to one another.
  • the flange can already be provided with the threaded inserts after punching out, i.e. before joining 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 prefabricated as described is then also “provisionally”, that is to say prefixed 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.
  • the 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 flange is manufactured as a single part, an edge or the like is formed on the edge. With this edge, the 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 attached that the mounting holes with the Through openings match.
  • both are also correct Flow openings.
  • the contours preferably correspond to the Steel insert such as that of the flange. You can choose an oval or a have a similar shape. However, to reduce weight, it is possible to optimize the use of steel in terms of thickness and circumferential design.
  • the plate heat exchanger is a liquid-cooled oil cooler and consists of trough-shaped aluminum sheets 6 which are stacked one inside the other, so that 6 channels 5 for oil and for the cooling liquid are separated between the sheets.
  • the channels 5 are connected in a manner not shown because they are known to the inlet and outlet channels 11 which are arranged in the cover plate 4 of the plate heat exchanger.
  • Two channels 11 serve to supply and discharge the oil.
  • the other two channels 11 are intended for the cooling liquid duct.
  • the channel 11 arranged in the upper right corner of the plate heat exchanger has a connection.
  • the other channels 11 are also equipped with connections (not shown). The connection is arranged relatively close to the edge of the plate heat exchanger, so that the flange 1 projects beyond the edge of the plate heat exchanger.
  • connection has been punched out of an aluminum sheet. It has two through 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 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 onto 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 completion of the soldering process can.
  • Fig. 2 it can also be seen that there is a distance a between the flange 1 and the cover plate 4 , the size of which is determined by the dimensioning of the intermediate piece 3 . This made space available in which the threaded inserts 10 extend. It is therefore possible to select the thread inserts 10 suitable for the respective application, the same flange 1 always being able to be used.
  • connection can be positioned as shown in FIG. 5. It is closer to the center of the plate heat exchanger than the connection from FIG. 1.
  • the designs shown in FIG. 3 or 4 are suitable for such connection positions.
  • two connections of the plate heat exchanger according to FIG. 2 could be formed and the other two according to the variants described below.
  • only a single connection could be designed according to the invention and all other connections could be designed differently.
  • the flange 1 is a deep-drawn part made of solder-coated aluminum sheet, with a border 33 and a folded edge on the border 33 .
  • the flange 1 is placed over the channel 11 on the cover plate 4 and soldered as described.
  • the flange 1 an about the shape of the flange 1 having Direction steel insert mechanically fixed with threaded holes 12 13 at the inside in such a way that the threaded holes 12 of the steel insert 13 and of course the flow opening 7 in the steel insert 13 with the corresponding openings 7; 8 in flange 1 match.
  • the flange 1 is formed in one piece by deep drawing from the cover plate 4 . In this case, 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)
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
DE10036583A DE10036583A1 (de) 2000-07-27 2000-07-27 Anschluß für Plattenwärmetauscher
DE10036583 2000-07-27

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647796A1 (fr) 2004-10-14 2006-04-19 Modine Manufacturing Company échangeur de chaleur à plaques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716087C1 (en) 1987-05-14 1988-07-14 Laengerer & Reich Kuehler Method of making blind tapped holes in connecting flanges of heat exchangers
DE19654362A1 (de) 1996-12-24 1998-06-25 Behr Gmbh & Co Wärmeübertrageranordnung

Family Cites Families (8)

* 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
DE2966553D1 (en) * 1979-09-07 1984-02-23 Wilhelm Schulz Apparate Und Ro Flange
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
SE9702420L (sv) * 1997-06-25 1998-12-26 Alfa Laval Ab Plattvärmeväxlare

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716087C1 (en) 1987-05-14 1988-07-14 Laengerer & Reich Kuehler Method of making blind tapped holes in connecting flanges of heat exchangers
DE19654362A1 (de) 1996-12-24 1998-06-25 Behr Gmbh & Co Wärmeübertrageranordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647796A1 (fr) 2004-10-14 2006-04-19 Modine Manufacturing Company échangeur de chaleur à plaques

Also Published As

Publication number Publication date
ES2217053T3 (es) 2004-11-01
ATE261101T1 (de) 2004-03-15
EP1176380A3 (fr) 2002-08-07
EP1176380B1 (fr) 2004-03-03
DE50101583D1 (de) 2004-04-08
DE10036583A1 (de) 2002-02-07

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