EP0274058A2 - Echangeur de chaleur à plaques - Google Patents

Echangeur de chaleur à plaques Download PDF

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Publication number
EP0274058A2
EP0274058A2 EP87117744A EP87117744A EP0274058A2 EP 0274058 A2 EP0274058 A2 EP 0274058A2 EP 87117744 A EP87117744 A EP 87117744A EP 87117744 A EP87117744 A EP 87117744A EP 0274058 A2 EP0274058 A2 EP 0274058A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
exchanger according
plate heat
plates
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.)
Withdrawn
Application number
EP87117744A
Other languages
German (de)
English (en)
Other versions
EP0274058A3 (fr
Inventor
Karl-Heinz Funke
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.)
Funke Warmeaustascher Apparatebau GmbH
Original Assignee
Funke Warmeaustascher Apparatebau GmbH
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 Funke Warmeaustascher Apparatebau GmbH filed Critical Funke Warmeaustascher Apparatebau GmbH
Publication of EP0274058A2 publication Critical patent/EP0274058A2/fr
Publication of EP0274058A3 publication Critical patent/EP0274058A3/fr
Withdrawn legal-status Critical Current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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • 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
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • the invention relates to a plate heat exchanger according to the preamble of claim 1
  • Plate heat exchangers are known in which several thin, embossed individual plates are joined together to form a plate pack with the aid of seals in such a way that the flow gaps formed between the individual plates are flowed through alternately by two media with different temperature levels, so that heat is exchanged via the plate walls.
  • the embossments in the plates determine the flow direction of the media, but also the turbulence and take over the pressure support of the individual plates with each other.
  • Embossed plates with a zigzag pattern are known, which are provided with a one-sided seal glued into a bead and which are placed on top of one another by alternating rotation by 180 degrees in such a way that the embossments intersect.
  • the seals in the area of the openings are arranged so that when the same plate is used, the respective inlet and outlet openings for the two media change from one to the other.
  • An optimal, even flow through the flow gaps is prevented by the fact that the embossments of the plates influence the flow on both media sides, i.e. by crossing the embossments no clear flow direction can be forced and by using the same plates as for economic reasons in which is usually the case is coercive Commonly inlet and outlet opening of a flow gap on the same long side, so that the gaseous or liquid medium always looks for the shortest path between the inlet and outlet opening.
  • the pressure of the individual heat transfer plates is supported by the embossing lying crosswise and is therefore limited in size by the mechanical strength of the material.
  • a seal and a flow gap are alternately arranged in the area of the openings.
  • the back pressure that is necessary for sealing between the media is not 100 percent guaranteed.
  • the safety space created between the two seals is provided with openings to the outside, so that in the event of a leak, the media are prevented from mixing and an outflow is made possible.
  • the area of the security room is lost as a heat exchange area.
  • the material Since the plates have to be embossed in the narrowest possible pattern in order to maintain a certain turbulence, but also to ensure a certain pressure support, the material must not exceed a certain thickness, otherwise cracks will occur in the material. Despite a usually very thin wall thickness for the panels, ongoing crack tests are necessary for safety reasons. In addition, not every material is equally suitable for embossing, and the inevitable embossing tensions could also subsequently lead to material cracks, sometimes under the influence of the flow media.
  • the object of the present invention is to develop a plate heat exchanger which largely eliminates the disadvantages described above.
  • the flow gaps in the plate heat exchanger are each limited by a flat plate and a profiled turbulence plate.
  • This has the advantage that the flow in the flow gap is not influenced by the turbulence profile of the adjacent turbulence plate.
  • the pressure support between the successive plates no longer takes place only at the intersection points of the embossments of adjacent plates, but can be taken into account individually when designing the turbulence plates. This allows higher pressures to be permitted.
  • Any suitable plate material can be used for the heat transfer plates, regardless of the embossing ability, in any thickness.
  • planar heat transfer plate provided according to the invention also has the advantage that replacement plates can be produced in any workshop from commercially available sheet metal plates without any significant effort.
  • the turbulence plates can, as stated in claim 2, be made of metal or plastic.
  • a further optimization of the adaptation to the media used can be achieved by the further development according to claim 4.
  • turbulence plates are designed to support the pressure of the flat heat transfer plates, as stated in claim 5.
  • the further development according to claim 9 can reliably prevent the seal from slipping out of the plate pack.
  • the inlets and outlets are to be arranged on different sides.
  • the turbulence plates can be assembled from several parts. This is particularly advantageous for larger plate heat exchangers for manufacturing and economic reasons. If you want to do without the possibility of cleaning and easy replacement of plates that have failed due to corrosion or the like, a connection of the plates to one another is also possible, as stated in claim 17.
  • Fig. 1 of the drawing shows a plate pack 2 of a plate heat exchanger consisting of alternately arranged heat transfer plates 4, which are designed as flat plates, and turbulence plates 6, the turbulence profiles on both sides and on both sides at the edge 9 and partially in the area of the flow openings 11 seals 10.
  • end-side pressure plates (not shown) which also accommodate the usual connections (not shown)
  • the turbulence plates 6 become closed the plate pack 2 put together.
  • the turbulence plates 6 are made of meal or plastic. Flow gaps 12 are formed between the heat transfer plates 4 and the turbulence plates 6.
  • the turbulence profile of successive turbulence plates influences only one flow gap by interleaving the flat heat transfer plates 4. This makes it possible to achieve an individual and optimal heat transfer through different turbulence plates adapted to the media.
  • the turbulence plate can be individually designed for the mutual pressure support of the heat transfer plate and the turbulence plate. It is easiest to press the intended turbulence profiles firmly onto the heat transfer plates to support the pressure. As a result, the pressure support takes place over a relatively large area, which enables the use of higher pressures; in addition, this increases the heat exchange area.
  • Fig. 2 shows a single turbulence plate in the view.
  • the turbulence plate 6 is provided with a peripheral seal 10, which is also provided on two diagonally arranged flow openings 11.
  • a profile seal 14 can also be provided, which is pulled over the edge 9 of the turbulence plate.
  • This profile seal 14 can also be vulcanized.
  • the turbulence plate preferably has a bead, groove or tongue in the area of the profile seal 14, as a result of which a positive connection with the profile seal 14 is achieved and the seal is reliably prevented from slipping out.
  • the seals are designed as one-piece seals 13 molded onto the turbulence plates, cf. 4 and 5. This molded seal is provided both at the edge and in the area of the flow openings. To achieve a secure fit, the molded seal 13 has a protruding edge 15 which engages in the flow opening of the flat heat transfer plate 4 to support the turbulence plate in the flow opening of the heat transfer plate.
  • support ribs can be provided or the turbulence profile can be designed to extend into the area of the seal or up to the seal in order to achieve good pressure on the seal.
  • a groove 22 can also be provided in the center of the seal, as shown in FIGS 3 and 5 is drawn, which is guided to the outside and reliably prevents mixing of the media when the media escapes.
  • the plates can also be welded, soldered or glued for connection.
  • the plates have a rectangular shape; but they can also be square or of another suitable shape.
  • DieFig. 6 shows a particularly advantageous flat heat transfer plate 30. From the edge of the plate, individual projections 32 extend approximately perpendicular to the plane of the plate for the positive and / or frictional reception of a sealing strip 34.
  • the projections have the shape of individual, preferably equally dimensioned, spaced bends, which are rectangular in the drawing. Other shapes are possible.
  • the sealing strip 34 preferably has recesses 36 which are designed to be complementary to the projections and which receive the projections. This ensures a particularly good and stable fit of the seal.
  • the flow openings 38, 40 provided in the corners of the heat transfer plate 30 are triangular. To increase the stability, they preferably consist of individually spaced elongated holes 42, the outline 43 of which forms a triangle.
  • the base side 44 of the opening 40 which is not connected to the flow gap, pointing approximately in the direction of the plate diagonal has, like the edge of the plate, projections 46 for the positive and / or frictional reception of a sealing strip (not shown) which is designed like the sealing strip 34 .
  • the projections 46 like the edge projections 32, have the shape of angled portions and are preferably of the same size formed like the projections 32, even if in the drawing the projections 46 are shown smaller than the projections 32 for a clearer illustration.
  • Fig. 7 shows part of a special embodiment of a turbulence plate 50, in which a plurality of individual sheet metal parts 52 are punched out and alternately pressed out of the plane of the plate, such that the sheet metal parts 52 remain connected to the plate 50 at two opposite ends 54, 56 .
  • the sheet metal parts 52 preferably have the shape of narrow, rectangular or trapezoidal bent strips, which are arranged in uniform rows, such that interconnected flow channels 58, 59 and 60 are formed between the rows of strips on both sides of the plate and by the mutually arranged sheet metal strips 52.
  • FIG. 8 shows part of another embodiment of a turbulence plate, which is designed here as a cross grating, the grating bars or grating wires 58, 70 of which are interwoven in a wave shape.
  • Each rod or wire has alternately successively arranged, relatively short, curved sections 72 and relatively long, straight sections 74, which are used in particular for pressure support.
  • FIGS. 9 and 10 show a tensioning device 80 for pressing together the heat exchanger plates 86 located between the pressure plates 82, 84 (only indicated schematically).
  • the tensioning device has at least one rectangular press frame 88 surrounding the plate pack 82, 84, 86, in one side of which at least one pressure screw 90 is arranged, by means of which pressure can be exerted on the pressure plate 84.
  • the press frame 88 consists for example of welded U-profiles.
  • the frame also forms a guide for the plates 82, 84, 86, so that special guide measures as in the prior art can be omitted.
  • a uniform pressure can be exerted on the pressure plate 84, so that the risk of bending and warping of the plates of the heat exchanger is avoided, since the pressure plate 82 on the opposite side of the plate package is also extensively supported by one side of the press frame.
  • the above-mentioned risk exists with the clamping screws previously used which are arranged outside the plate package.

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)
EP87117744A 1986-12-04 1987-12-01 Echangeur de chaleur à plaques Withdrawn EP0274058A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3641458 1986-12-04
DE19863641458 DE3641458A1 (de) 1986-12-04 1986-12-04 Plattenwaermeaustauscher

Publications (2)

Publication Number Publication Date
EP0274058A2 true EP0274058A2 (fr) 1988-07-13
EP0274058A3 EP0274058A3 (fr) 1988-07-20

Family

ID=6315470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117744A Withdrawn EP0274058A3 (fr) 1986-12-04 1987-12-01 Echangeur de chaleur à plaques

Country Status (4)

Country Link
US (1) US4854382A (fr)
EP (1) EP0274058A3 (fr)
JP (1) JPS63197880A (fr)
DE (1) DE3641458A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384305A1 (fr) * 1989-02-18 1990-08-29 BEHRINGWERKE Aktiengesellschaft Module d'échange de chaleur

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008424A1 (fr) * 1989-11-27 1991-06-13 Kievsky Politekhnichesky Institut Imeni 50-Letia Velikoi Oktyabrskoi Sotsialisticheskoi Revoljutsii Element d'echange thermique pour installation de refroidissement evaporatif indirect
US5222745A (en) * 1992-02-28 1993-06-29 Jmk International, Inc. RTV-less gasket assembly
US5494301A (en) * 1993-04-20 1996-02-27 W. L. Gore & Associates, Inc. Wrapped composite gasket material
EP1012524B1 (fr) * 1997-09-19 2001-12-05 Millipore Corporation Appareil d'echange de chaleur
RU2165571C1 (ru) * 1999-08-05 2001-04-20 Христолюбов Роберт Геннадьевич Теплообменник пластинчатый противоточный
US7328886B2 (en) * 2001-10-11 2008-02-12 Spx Cooling Technologies, Inc. Air-to-air atmospheric heat exchanger for condensing cooling tower effluent
US6714412B1 (en) 2002-09-13 2004-03-30 International Business Machines Corporation Scalable coolant conditioning unit with integral plate heat exchanger/expansion tank and method of use
US20040099408A1 (en) * 2002-11-26 2004-05-27 Shabtay Yoram Leon Interconnected microchannel tube
DE10322406A1 (de) 2003-05-16 2004-12-02 Api Schmidt-Bretten Gmbh & Co. Kg Platten-Wärmeübertrager
US7032654B2 (en) * 2003-08-19 2006-04-25 Flatplate, Inc. Plate heat exchanger with enhanced surface features
US7088585B2 (en) * 2003-12-03 2006-08-08 International Business Machines Corporation Cooling system and method employing at least two modular cooling units for ensuring cooling of multiple electronics subsystems
US20090056912A1 (en) * 2007-08-29 2009-03-05 Tom Kerber Thermal device for heat exchange
US8104466B2 (en) * 2007-08-29 2012-01-31 Tom Kerber Solar energy collecting assembly for a solar energy converter
DE102009032370A1 (de) 2009-07-08 2011-01-13 Sartorius Stedim Biotech Gmbh Plattenwärmetauscher
US20160209119A1 (en) * 2015-01-20 2016-07-21 Energy & Environmental Research Center Foundation Polymer film heat exchanger with integral fluid distribution manifolds and method
CN108759530A (zh) * 2018-07-24 2018-11-06 江阴市亚龙换热设备有限公司 高效防漏板式换热器

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DE627749C (de) * 1932-09-02 1936-03-27 Holstein & Kappert Maschf Waermeaustauschvorrichtung mit glatten und gerippten Platten
DE676922C (de) * 1937-07-16 1939-06-15 Bergedorfer Eisenwerk A G Astr Gummiranddichtung fuer die Plattenpakete fuer Waermeaustauscher
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GB1172247A (en) * 1966-04-20 1969-11-26 Apv Co Ltd Improvements in or relating to Plate Heat Exchangers
US3460611A (en) * 1967-10-06 1969-08-12 Gen Motors Corp Heat exchanger of plate fin modules
GB1302516A (fr) * 1970-01-30 1973-01-10
FR2290646A1 (fr) * 1974-11-06 1976-06-04 Commissariat Energie Atomique Echangeur a plaques
JPS5639908Y2 (fr) * 1977-04-23 1981-09-17
GB2075656B (en) * 1980-05-01 1983-12-21 Apv Co Ltd Improved heat transfer apparatus
GB2078926B (en) * 1980-06-18 1983-11-30 Apv Co Ltd Heat transfer plates and gaskets therefor
NZ201673A (en) * 1981-09-11 1986-07-11 R J Pollard Flat plate heat exchanger core with diversion elements to allow several fluid passes through core
SE8106221L (sv) * 1981-10-21 1983-04-22 Reheat Ab Packningsspar hos plattelement for plattvermevexlare
DE3146088A1 (de) * 1981-11-20 1983-05-26 Linde Ag, 6200 Wiesbaden "plattenwaermetauscher"
GB2141814B (en) * 1983-06-20 1986-10-01 Apv Int Ltd Improvements in plate heat exchangers
DE3339932A1 (de) * 1983-11-04 1985-05-15 Bayer Ag, 5090 Leverkusen Spaltwaermetauscher mit stegen
GB2151347A (en) * 1983-12-09 1985-07-17 Apv Int Ltd Plate heat exchangers
AT378603B (de) * 1984-02-08 1985-09-10 Kuprian Systembau Ges M B H Plattenwaermetauscher
JPS60238688A (ja) * 1984-05-11 1985-11-27 Mitsubishi Electric Corp 熱交換器
DE3660604D1 (en) * 1985-05-15 1988-09-29 Showa Aluminum Corp Heat-exchanger of plate fin type
FR2584806B1 (fr) * 1985-07-11 1989-03-24 Chausson Usines Sa Echangeur de chaleur a plaques maintenues separees les unes des autres par des barrettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384305A1 (fr) * 1989-02-18 1990-08-29 BEHRINGWERKE Aktiengesellschaft Module d'échange de chaleur

Also Published As

Publication number Publication date
US4854382A (en) 1989-08-08
DE3641458A1 (de) 1988-06-09
JPS63197880A (ja) 1988-08-16
EP0274058A3 (fr) 1988-07-20
DE3641458C2 (fr) 1991-03-28

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Inventor name: FUNKE, KARL-HEINZ