EP0169843B1 - Rahmenplatte und/oder druckplatte für einen plattenwärmetauscher - Google Patents

Rahmenplatte und/oder druckplatte für einen plattenwärmetauscher Download PDF

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Publication number
EP0169843B1
EP0169843B1 EP19840901026 EP84901026A EP0169843B1 EP 0169843 B1 EP0169843 B1 EP 0169843B1 EP 19840901026 EP19840901026 EP 19840901026 EP 84901026 A EP84901026 A EP 84901026A EP 0169843 B1 EP0169843 B1 EP 0169843B1
Authority
EP
European Patent Office
Prior art keywords
plate
hole
heat exchanger
pressure
generating line
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
Application number
EP19840901026
Other languages
English (en)
French (fr)
Other versions
EP0169843A1 (de
EP0169843B2 (de
Inventor
Nils-Ake JÖNSSON
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.)
Alfa Laval AB
Original Assignee
Alfa Laval AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20350247&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0169843(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alfa Laval AB filed Critical Alfa Laval AB
Priority to AT84901026T priority Critical patent/ATE28513T1/de
Publication of EP0169843A1 publication Critical patent/EP0169843A1/de
Publication of EP0169843B1 publication Critical patent/EP0169843B1/de
Application granted granted Critical
Publication of EP0169843B2 publication Critical patent/EP0169843B2/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • 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

Definitions

  • This invention relates to plate heat exchangers, and more particularly to a plate heat exchanger frame plate and/or pressure plate having at least one through hole for heat exchange medium.
  • a plate heat exchanger comprises two end plates, namely a frame plate and a pressure plate, and a stack of heat exchanging plates positioned between the end plates.
  • the plate package is clamped together by bolts.
  • Holes or ports are provided in at least the frame plate for connection to the pipe lines conducting the heat exchange media to and from the heat exchanger. There are as a rule four connections, namely an inlet port and an outlet port for each of two media.
  • connection port dimensions which are not in accordance with the standard for which the heat exchanger is designed, and which correspond to the dimensions of the port openings in the plates of the plate package.
  • Such customer wishes can be for smaller or larger dimensions than normal.
  • Such requirements are today in most cases met by expensive external distance pieces which are tapered in either direction and are placed between the frame plate or the pressure plate and the connecting pipeline flange.
  • the present invention provides an alterantive solution to the problem of meeting with these wishes.
  • the invention provides a solution to the problems previously mentioned.
  • a plate heat exchanger frame plate and/or pressure plate according to the invention is characterised in that the wall of the hole has a generating line which is inclined to the plane of the plate around at least part of the hole periphery.
  • FIG. 1 there is shown a frame plate or pressure plate 1 to which are fastened a number of bolts 2 serving to connect a flange 3 against the plate 1.
  • the purpose of the flange 3 is to hold a connecting pipe 4 having a flange 5 against the plate.
  • Each bolt 2 co-operates with a nut 6.
  • the plate 1 has through holes 7 for conducting into and out of the heat exchanger respectively, at least one heat exchanging medium.
  • the wall and the centre axis (C i ) of each hole 7 has an angle to the plane (P) of the plate other than 90°.
  • the generating line at one longitudinal edge 8 of the hole 7 forms an acute angle with one longitudinal edge 10 at the inner side of the plate 1
  • the generating line at the other longitudinal edge 9 of the hole 7 forms an acute angle with the other longitudinal edge 11 at the outer side of the plate.
  • the opening of the hole 7 on the outside of the plate 1 is located further outwards towards the periphery of the plate 1 than is the hole opening on the inside of the plate, whereby the distances between the connection holes 7 on the outer side 12 of the plate are larger than on the inner side 13 of the plate.
  • the cross-section of the hole at the outer side 12 of the plate 1 is preferably circular and the same size as at the inner side 13 of the plate 1.
  • a lining 14 which in this case is made from a sheet of steel.
  • the lining can be made of rubber or plastics material.
  • the lining 14 has a flange 15 located betwen the plate 1 and the flange 5 of the connecting pipe 4.
  • On the inner side 13 of the plate 1 there is a recess 16 into which is fitted a steel ring 17 preferably of circular shape.
  • a gasket 18 which functions as a seal between the plate 1 and the closest heat exchanging plate 19.
  • FIG 2 there is shown an assembly which for the most part is the same as that in Figure 1, but which incorporates a lining 20 of different design.
  • the lining 20 is of one piece rubber construction and includes a part 21 which corresponds to the separately made steel ring 17 and a gasket 18 according to Figure 1.
  • distance elements 26 are inserted in the flange 22, these elements preferably being made of steel.
  • connection ports according to the invention can be used with different types of corrosion-protecting linings and also for plates with wholly unprotected ports.
  • FIG. 3 there is shown a frame plate or pressure plate 30 according to the invention.
  • the plate 30 is provided with four connection holes 31, 32, 33, 34, each having a centre axis which forms an angle with the plane of the plate other than 90°.
  • connection holes in the plate autogenous cutting is preferably used.
  • the gas flame is directed with a certain angle to the plate and is moved to follow a circle.
  • circular hole openings are obtained at the outer surfaces 10 and 11 of the plate, while the cross-section perpendicular to the centre axis of the hole has the shape of an ellipse.
  • FIG 4 is a schematic section through a third embodiment of the invention.
  • the frame plate or pressure plate 40 has a hole 41, and, as seen in the drawing the generating line at one longitudinal edge 42 of the hole 41 forms an acute angel with the longitudinal edge 43 at the inner side face of the plate 40, and the generating line at the opposite longitudinal edge 44 of the hole also forms an acute angle with the longitudinal edge 43 at the inner side face of the plate.
  • the longitudinal edge 44 could form a right angle with the longitudinal edge 43 of the plate.
  • a metal lining or a rubber lining 45 Into the plate hole 41 is inserted a metal lining or a rubber lining 45.
  • This embodiment is particularly advantageous when wishing to comply with requirements concerning dimensioning of the connections and velocity of the heat exchanging media in connection pipes which deviate from those corresponding to the port dimensions of the plate package.
  • the form of the holes in the above described embodiment can be applied to one or only some of the ports in the frame plate and/or the pressure plate as well as all ports.

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)

Claims (7)

1. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte, mit wenigstens einem Durchgangsloch (7; 4) für Wärmetauschermedium, dadurch gekennzeichnet, daß die Wandung des Loches eine erzeugende Linie (8, 9; 42, 44) aufweist, die gegenüber der Ebene (P) der Platte auf wenigstens einem Teil der Peripherie des Loches geneigt ist.
2. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach Anspruch 1, bei der das Loch (7) eine Mittellinie (C,) aufweist, die um einen von 90° abweichenden Winkel gegenüber der Ebene (P) der Platte geneigt ist.
3. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach Anspruch 1 oder 2, bei der die Öffnung des Loches (7) auf der Außenseite der Platte näher an der Peripherie der Plate ist als die Öffnung des Loches auf der Innenseite der Platte.
4. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach einem der voranstehenden Ansprüche, bei der die erzeugende Linie (8) auf einem Teil der Peripherie des Loches einen spitzen Winkel mit einer Seitenfläche (10) der Platte (1) einnimmt, und bei der die erzeugende Linie auf einem anderen Teil der Peripherie des Loches einen spitzen Winkel zu der anderen Seitenfläche (11) der Platte (1) einnimmt.
5. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach Anspruch 1, 2 oder 3, bei der die erzeugende Linie (42) auf einem Teil Der Peripherie des Loches (41) einen spitzen Winkel mit einer Seitenfläche (43) der Platte (40) einnimmt, und bei der die erzeugende Linie (44) auf einem anderen Teil der Peripherie des Loches gegenüber dem einen Teil einen rechten Winkel zu der einen Seitenfläche (43) einnimmt.
6. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach Anspruch 1, bei der das Loch (41) eine Mittellinie (C2) aufweist, die unter einem rechten Winkel zu der Ebene (P) der Platte (40) verläuft.
7. Plattenwärmetauscher-Rahmenplatte und/ oder -Druckplatte nach Anspruch 6, bei der die erzeugende Linie (42) auf einem Teil der Peripherie des Loches einen spitzen Winkel zu einer Seitenfläche (43) der Platte (40) einnimmt, und bei der die erzeugende Linie (44) auf einem anderen Teil der Peripherie des Loches gegenüber dem einen Teil auch einen spitzen Winkel zu der einen Seitenfläche (43) einnimmt.
EP19840901026 1983-03-03 1984-02-28 Rahmenplatte und/oder druckplatte für einen plattenwärmetauscher Expired EP0169843B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84901026T ATE28513T1 (de) 1983-03-03 1984-02-28 Rahmenplatte und/oder druckplatte fuer einen plattenwaermetauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8301177A SE8301177D0 (sv) 1983-03-03 1983-03-03 Stativ- och/eller tryckplatta for plattvermevexlare
SE8301177 1983-03-03

Publications (3)

Publication Number Publication Date
EP0169843A1 EP0169843A1 (de) 1986-02-05
EP0169843B1 true EP0169843B1 (de) 1987-07-22
EP0169843B2 EP0169843B2 (de) 1992-01-08

Family

ID=20350247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840901026 Expired EP0169843B2 (de) 1983-03-03 1984-02-28 Rahmenplatte und/oder druckplatte für einen plattenwärmetauscher

Country Status (6)

Country Link
EP (1) EP0169843B2 (de)
JP (1) JPS60500682A (de)
DE (1) DE3464963D1 (de)
DK (1) DK521484A (de)
SE (1) SE8301177D0 (de)
WO (1) WO1984003555A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8500352D0 (sv) * 1985-01-25 1985-01-25 Alfa Laval Thermal Ab Foder
SE8600127D0 (sv) * 1986-01-13 1986-01-13 Alfa Laval Thermal Ab Anordning vid plattvermevexlare
SE502796C2 (sv) * 1994-05-18 1996-01-15 Tetra Laval Holdings & Finance Plattvärmeväxlare med fodrade anslutningsrör
SE507800C2 (sv) * 1996-11-14 1998-07-13 Alfa Laval Ab Plattvärmeväxlare med foderförsett anslutningsrör samt stödanordning för att motverka utböjning av plattpaketets yttre värmeöverföringsplatta
US7007750B2 (en) 2001-02-28 2006-03-07 Showa Denko K.K. Heat exchanger
US10082337B2 (en) 2015-11-16 2018-09-25 Alfa Laval Corporate Ab Shell-and-tube heat exchanger with seal for isolating shell from tube fluid
EP3333527A1 (de) * 2016-12-08 2018-06-13 Alfa Laval Corporate AB Auskleidungsvorrichtung und wärmetauscher

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2350976A (en) * 1943-01-16 1944-06-06 George A Worn Heat exchanger
US2511084A (en) * 1947-11-07 1950-06-13 Young Radiator Co Heat-exchanger core

Also Published As

Publication number Publication date
WO1984003555A1 (en) 1984-09-13
DE3464963D1 (en) 1987-08-27
DK521484D0 (da) 1984-11-02
SE8301177D0 (sv) 1983-03-03
EP0169843A1 (de) 1986-02-05
JPS60500682A (ja) 1985-05-09
JPH0412398B2 (de) 1992-03-04
EP0169843B2 (de) 1992-01-08
DK521484A (da) 1984-11-02

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