EP0111459A2 - Plattenwärmetauscher - Google Patents

Plattenwärmetauscher Download PDF

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Publication number
EP0111459A2
EP0111459A2 EP83830245A EP83830245A EP0111459A2 EP 0111459 A2 EP0111459 A2 EP 0111459A2 EP 83830245 A EP83830245 A EP 83830245A EP 83830245 A EP83830245 A EP 83830245A EP 0111459 A2 EP0111459 A2 EP 0111459A2
Authority
EP
European Patent Office
Prior art keywords
plates
heat exchanger
interspace
exchanger according
fluid
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Withdrawn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
EP83830245A
Other languages
English (en)
French (fr)
Other versions
EP0111459A3 (de
Inventor
Tamara Pucci
Oretta Mandorlini
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0111459A2 publication Critical patent/EP0111459A2/de
Publication of EP0111459A3 publication Critical patent/EP0111459A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins
    • 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

Definitions

  • the present invention refers,in general,to heat exchanger apparatus for heat transfer, and more in particular it refers to an improved plate-type exchanger.
  • plate-type exchangers are composed of a series of parallel plates held firmly together between substantial head frames.
  • the plates are one-piece pressings, frequently of stainless steel, and are spaced by rubber sealing gaskets cemented into a channel around the edge of each plate.
  • Each plate has a number of troughs pressed out at right angles to the direction of flow and arranged so that they interlink with each other to form a channel of constantly changing direction and section.
  • the gap between adjacent plates is normally quite small. The hot fluid and the cold fluid flow in alternate spaces and a large surface can be obtained in a small volume.
  • the plate-type exchangers are, as is known, quite costly; this mainly depends on the expensive processing required to produce corrugated plates.
  • the purpose of the present invention is to provide a plate-type exchanger that, being equal heat duty, pressure drops and other mechanical features, is characterized by a lesser cost than those presently available.
  • a heat exchanger with a fluid which must absorb calories or frigories - comprising at least two plates set apart to define an interspace into which the fluid is channelled, with gaskets or seals which delimit the interspace and with openings to provide passages for the circulating fluid - is characterized by the fact that the plates are flat and that a discontinuous baffle is set between the plates in the interspace to induce a certain turbulence in the flow.
  • Said discontinuous baffle advantageously consists of a screen element, in particular metallic. Said screen element is in contact with the facing surfaces of the adjacent plates which define the interspace where said element is housed, said element being shaped like the internal perimeter of the gasket.
  • the baffle can in practice be of woven wire net, in particular metallic, or of stretched metal sheet, or be of any other suitable material.
  • the discontinuous baffle is replaceable and can be made of more or less closely-woven netting in order to create the desired pressure drop in the flow of fluid in the interspace.
  • the exchanger can have multiple interspaces for liquids heat exchange, or have a single interspace which may be part of a solar energy panel, or other.
  • a heat exchanger for liquids of the stacked plate type, comprises flat plates 1 simply sheared off, indicated in particular as 1, instead of corrugated plates used with the known plate-type exchangers.
  • flat plates 1 are clearly less expensive (with regard to the equipment for their production) than the pressed corrugated plates.
  • flat plates 1 can be made of less expensive materials.
  • the plates may be completed with rigid spacers 3, in order to assure tightening with a fixed spacing between the plates. In this way the reaction to the tightening is not exclusively left to the gaskets.
  • the plates 1 are provided with openings for the circulation of the liquid, usually in counter-corrent.
  • diagonally opposed openings 5A and 5B are provided for the first fluid and diagonally opposed openings 7A and 7B are provided for the second fluid.
  • Sheared-off, flat elastic gaskets indicated generally at 9, are placed between contiguous plates, besides the spacers 3 (if any). All gaskets 9 have the same shape, but are employed with alternate positioning: that is, each gasket is turned over with respect to the continguous ones in the stack of plates. Gaskets 9 have a substantially annular shape corresponding to the perimetrical edge of plates 1 and internal expansions 9A, 9B are formed in correspondence of two diagonally opposed angles. Holes 10A, 10B are formed through expansions 9A, 9B.
  • holes 10A and 10B When gasket 9 is placed between a pair of plates 1, holes 10A and 10B will correspond to the pair of holes 5A, 5B or to the pair of holes 7A, 7B, depending on the orientation of the gasket.
  • the pair of holes of the plate not in correspondence to holes 10A, 10B communicate with the space circumscribed by the gasket forming the interspace between the two plates between which the gasket is set and held in place.
  • the interspaces between the plates will communicate alternatively with the line of holes 5A and holes 5B, and, respectively, with the line of holes 7A and holes 7B; thus, alternatively, the heating fluid (for example) flows through the even-numbered interspaces from hole 5A to hole 5B, as indicated by arrows f5 in Fig. 1, while the other fluid flows through the odd-numbered interspaces from hole 7B to 7A according to the arrows f7 in counter- and cross-current.
  • the heating fluid for example
  • the interspaces defined by the continguous plates 1 with a width equal to the thickness of the above mentioned spacers 3 or equal to the residual thickness of the gaskets 9 compressed when coupling plates 1 (the gaskets 9 will always be compressed, even in the presence of spacers 3), are partially filledwithdisconti- nuous baffles which have the following functions: creating turbulence in the flow of liquid in the interspace itself; assuring support and distancing between the central areas of the contiguous plates, in order to maintain uniform widths; and increasing the heat transmission with the plates.
  • non-continuous elements are, in practice, formed by metal wire-nets elements 12 having a shape corresponding to the space defined by the internal perimeter of gaskets 9; these elements are in contact with the plates 1 in order to assure an equal interspace between them and also to provide heat transfer by conduction between the fluid flowing through the wire-net and the plates with which the wire-net is in contact.
  • the passage to turbulent flow conditions occurs in the fluid, these conditions being advisable, as well known, for the most effective heat transfer.
  • the pressure drop in the internal circuits of the above-described plate-type heat exchanger can be modified; this can be useful to obtain particular performance characteristics of the exchanger.
  • the thickness of the plates can be reduced with an appreciable reduction in weight, dimensions and costs.
  • spacers 3 avoids excessive compression of the gaskets, which instead remain compressed in the conditions best suited to assuring the seal, when the stack of plates is tightened down with the rigid spacers 3 in place, therefore not requiring a calibrated tightening.
  • a heat exchange device arranged in a similar way to that previously described, may be used, for instance, in the construction of solar energy panels to induce turbulence in the fluid circulating in the exposed interspace, defined by a flat plate that may be further equipped with flow diverters and/or means for creating a labyrinth.
  • the metal wire-net elements can be formed in various dimensions without incurring high equipment costs, and the plates themselves are cut in the desired dimensions without the use of either pressing or costly materials.

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)
EP83830245A 1982-12-03 1983-12-02 Plattenwärmetauscher Withdrawn EP0111459A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT09564/82A IT1192543B (it) 1982-12-03 1982-12-03 Scambiatore di calore con lamine parallele ad elemento interposto a rete o simile,per rendere turbolento il moto del fluido
IT956482 1982-12-03

Publications (2)

Publication Number Publication Date
EP0111459A2 true EP0111459A2 (de) 1984-06-20
EP0111459A3 EP0111459A3 (de) 1984-12-27

Family

ID=11132255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83830245A Withdrawn EP0111459A3 (de) 1982-12-03 1983-12-02 Plattenwärmetauscher

Country Status (4)

Country Link
EP (1) EP0111459A3 (de)
JP (1) JPS59142382A (de)
ES (1) ES527746A0 (de)
IT (1) IT1192543B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183008A1 (de) * 1984-10-31 1986-06-04 Rockwell International Corporation Plattenwärmetauscher
WO1999066280A1 (en) * 1998-06-12 1999-12-23 Chart Heat Exchangers Limited Heat exchanger
WO2001040730A1 (de) * 1999-12-02 2001-06-07 Scambia Industrial Developments Aktiengesellschaft Wärmetauscher
WO2001077602A1 (en) * 2000-04-12 2001-10-18 Cheiros (Technology) Ltd. Improvements relating to heat transfer
US7032654B2 (en) * 2003-08-19 2006-04-25 Flatplate, Inc. Plate heat exchanger with enhanced surface features
NL1027640C2 (nl) * 2004-12-01 2006-06-02 Stichting Energie Warmtewisselaarelement, warmtewisselaar en werkwijze voor het wisselen van warmte.
EP2977702A1 (de) * 2014-07-22 2016-01-27 Hamilton Sundstrand Space Systems International, Inc. Wärmeübertragungsplatte
CN105783561A (zh) * 2016-03-28 2016-07-20 中国石油大学(华东) 一种三介质编织式金属丝网材料换热器及制作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516735A (fr) * 1966-01-22 1968-02-05 Snecma Perfectionnements aux échangeurs à plaques
GB1302516A (de) * 1970-01-30 1973-01-10
FR2290646A1 (fr) * 1974-11-06 1976-06-04 Commissariat Energie Atomique Echangeur a plaques
FR2295769A1 (fr) * 1974-12-23 1976-07-23 Micron Eng Inc Appareil de constitution de surfaces travaillantes pour la manutention de fluides
US4088115A (en) * 1976-08-19 1978-05-09 Powell Charles E Solar heating system
EP0000992A1 (de) * 1977-08-11 1979-03-07 United Wire Group Public Limited Company Wärmeaustauschelemente und Herstellungsweise solcher Elemente

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166937U (de) * 1980-04-18 1981-12-10

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516735A (fr) * 1966-01-22 1968-02-05 Snecma Perfectionnements aux échangeurs à plaques
GB1302516A (de) * 1970-01-30 1973-01-10
FR2290646A1 (fr) * 1974-11-06 1976-06-04 Commissariat Energie Atomique Echangeur a plaques
FR2295769A1 (fr) * 1974-12-23 1976-07-23 Micron Eng Inc Appareil de constitution de surfaces travaillantes pour la manutention de fluides
US4088115A (en) * 1976-08-19 1978-05-09 Powell Charles E Solar heating system
EP0000992A1 (de) * 1977-08-11 1979-03-07 United Wire Group Public Limited Company Wärmeaustauschelemente und Herstellungsweise solcher Elemente

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183008A1 (de) * 1984-10-31 1986-06-04 Rockwell International Corporation Plattenwärmetauscher
WO1999066280A1 (en) * 1998-06-12 1999-12-23 Chart Heat Exchangers Limited Heat exchanger
US6968892B1 (en) 1998-06-12 2005-11-29 Chart Heat Exchangers Limited Heat exchanger
WO2001040730A1 (de) * 1999-12-02 2001-06-07 Scambia Industrial Developments Aktiengesellschaft Wärmetauscher
WO2001077602A1 (en) * 2000-04-12 2001-10-18 Cheiros (Technology) Ltd. Improvements relating to heat transfer
US6994155B2 (en) 2000-04-12 2006-02-07 Cheiros (Technology) Ltd. Heat transfer
US7032654B2 (en) * 2003-08-19 2006-04-25 Flatplate, Inc. Plate heat exchanger with enhanced surface features
NL1027640C2 (nl) * 2004-12-01 2006-06-02 Stichting Energie Warmtewisselaarelement, warmtewisselaar en werkwijze voor het wisselen van warmte.
EP2977702A1 (de) * 2014-07-22 2016-01-27 Hamilton Sundstrand Space Systems International, Inc. Wärmeübertragungsplatte
US20160025422A1 (en) * 2014-07-22 2016-01-28 Hamilton Sundstrand Space Systems International, Inc. Heat transfer plate
CN105783561A (zh) * 2016-03-28 2016-07-20 中国石油大学(华东) 一种三介质编织式金属丝网材料换热器及制作方法
CN105783561B (zh) * 2016-03-28 2017-07-11 中国石油大学(华东) 一种三介质编织式金属丝网材料换热器及制作方法

Also Published As

Publication number Publication date
IT1192543B (it) 1988-04-20
EP0111459A3 (de) 1984-12-27
ES8501110A1 (es) 1984-11-01
JPS59142382A (ja) 1984-08-15
IT8209564A0 (it) 1982-12-03
ES527746A0 (es) 1984-11-01

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