EP0186592B1 - Plattenwärmetauscher - Google Patents

Plattenwärmetauscher Download PDF

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Publication number
EP0186592B1
EP0186592B1 EP85402573A EP85402573A EP0186592B1 EP 0186592 B1 EP0186592 B1 EP 0186592B1 EP 85402573 A EP85402573 A EP 85402573A EP 85402573 A EP85402573 A EP 85402573A EP 0186592 B1 EP0186592 B1 EP 0186592B1
Authority
EP
European Patent Office
Prior art keywords
plates
welding
pairs
plate
exchanger according
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
EP85402573A
Other languages
English (en)
French (fr)
Other versions
EP0186592A1 (de
Inventor
André Peze
Henry Fechner
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.)
Barriquand SA
Original Assignee
Barriquand SA
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 Barriquand SA filed Critical Barriquand SA
Publication of EP0186592A1 publication Critical patent/EP0186592A1/de
Application granted granted Critical
Publication of EP0186592B1 publication Critical patent/EP0186592B1/de
Expired 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
    • F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/373—Adjacent heat exchange plates having joined bent edge flanges for forming flow channels therebetween
    • Y10S165/384—Thermally bonded side edges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49366—Sheet joined to sheet

Definitions

  • the invention relates to a plate heat exchanger and particularly relates to a heat exchanger comprising a multiplicity of metal plates juxtaposed and separated by successive intervals which are intended for the circulation of a first fluid and a second fluid parallel to the first, the term fluid encompassing here all types of liquids and gases, the two fluids exchanging energy through the plates during their course in the intervals between plates.
  • the invention relates to such an exchanger in which the plates are assembled together by welding at their periphery.
  • Document DE-A-2 163 731 also discloses a technique of linear seam welding of two plates along their edge in order to make the interval which separates them sealed vis-à-vis the outside.
  • the object of the invention is to produce an exchanger in which the plates are first assembled in pairs, then the pairs are then assembled together without it being necessary to enclose the assembly thus obtained in a calender.
  • the plates are assembled in pairs by linear welding in their four end zones and have wings connected to an upper zone and a lower zone opposite to each other and folded back to the square, and the pairs are assembled side by side so that the wings of a first pair are assembled by linear welding with the wings of the plate opposite the neighboring pair, inlet and outlet ports fluids to the intervals being provided in the form of interruptions in the upper and lower linear welds.
  • the exchanger according to the invention consists of a stack of juxtaposed metal plates of substantially rectangular shape and there is shown in Figure 1, six of these plates 10, 11, 12, 13, 14 and 15 some of which have been cut transversely so as to highlight the particularities of assembly.
  • the first pair, 10-11 is shown to its anterior edge while the other two pairs have been sectioned along different transverse vertical planes.
  • the plates of the same pair define between them an interval designated by the reference A, and the pairs define between them intervals designated by the reference B.
  • the intervals A are intended for the circulation of a first fluid and the intervals B are intended for the circulation of a second fluid, with the aim of ensuring a heat exchange between them through the plates.
  • the intervals A and B are closed, at least at the top and bottom by the fact that each plate is connected at its periphery to the two adjacent plates, in a sealed manner.
  • the plates of the same pair for example 14-15, are welded together by linear welds 16 and 17 in their upper and lower end zones.
  • these welds can be produced, for example, by electrical welding with a thumbwheel, as will be explained below.
  • the plates comprise wings 18, 19, 20, 21 connected to their upper and lower end zones, and folded substantially at right angles, which makes it possible to assemble the pairs of plates together.
  • the pairs are assembled side by side, so that the wings 20, 21 of a plate (14) of a first pair (14-15) are arranged edge to edge relative to the wings ( 22, 23) of the plate 13 facing the neighboring pair (12-13) and the wings are welded to each other (20 and 22, 21 and 23) by a linear weld bead, by example by arc welding.
  • the plates of the same pair (10-11) are also welded to each other along their anterior extreme zone 24, either by electrical welding with a thumbwheel, or by cord arc welding.
  • Fluid inlet and outlet openings to the intervals A are provided in the form of interruptions in the upper linear welds 16 and lower 17.
  • a single orifice 25 has been illustrated in FIG. 1, at the level of the upper weld 16, and in the vicinity of the anterior end zone 24.
  • the other orifice, not shown, is arranged in the vicinity of the posterior end zone, optionally at the level of the upper weld 16 or the lower weld 17.
  • the pairs of plates are devoid of wings at their anterior and posterior end zones, so that there remain free openings between the pairs of plates, which thus constitute the inlet and outlet orifices for the fluid circulating in intervals B.
  • the plates have depressions 26 distributed substantially regularly over the surface of the plates and whose role is multiple.
  • the plates are welded to each other by points at the bottom of the depressions, this preventing the spacing of the plates when, on the contrary, the fluid pressure prevailing in the intervals A exceeds that which prevails in the intervals B.
  • these depressions create obstacles to the flow of the fluid in the intervals A and the turbulences which result from it improve the heat exchanges between this fluid and the plates.
  • depressions can be arranged in regular rows as illustrated, or in staggered rows or according to any predetermined arrangement.
  • the insulated plate 10 illustrated in Figure 2 was obtained in a conventional manner by stamping the depressions 26 and folding the wings square.
  • This plate is then assembled to a second plate 11 by spot welding at the bottom of the depressions 26 ( Figure 3).
  • Weld beads 16, 17 are then produced in the vicinity of the feet of the wings, by electrical welding using knobs 28, 29 (FIG. 4), it being noted that the plates initially spaced from one another ( Figure 3) are forced to move together under the pressure of the knobs. This is made possible by the small thickness of the plates and their small spacing and avoids a prior drilling operation.
  • a first pair of plates (10-11) is then assembled to a second pair of plates (12-13) constituted in the above manner, by presenting the wings of both in edge-to-edge relationship and then by making a linear weld seam, for example by arc welding.
  • the plates thus assembled form a monobloc assembly to which we associate inlet and outlet manifolds for the fluids circulating in the intervals A and B.
  • a manifold 30 in the form of a rectangular pipe is welded to the perimeter of the front end of the exchanger plates.
  • a similar manifold, not shown, is welded to the perimeter of the rear end of the exchanger plates.
  • a semi-cylindrical manifold 32 is welded transversely to all of the plates, so as to cover all of the orifices 25 for the fluid flowing in the intervals A.
  • the front edge (according to the arrangement of FIG. 8) of the collector 32 is welded to the upper face of the collector 30, and its rear edge is welded to a pseudo-planar and almost continuous surface, formed by the succession of the wings of the plates exchanger. These welds are preferably carried out with the addition of metal so as to provide the required seal.
  • the front edge of the manifold 32 can also be welded to the wings of the exchanger plates, provided that the orifices 25 are formed somewhat behind the front edges 24 of the plates.
  • a wedge 34 in the form of a wedge is introduced between two plates of a pair 10-11 so as to prevent the advance of the welding knobs 28 , 29, in the orifice area.
  • support plates 36, 38 must be provided in the vicinity of the exchanger plates situated at the ends (FIG. 6). These support plates are juxtaposed, without attachment, to the exchanger plates so as to allow differential expansion and are joined to one another by tie rods 40, dimensioned and distributed to absorb the forces due to the pressure of the fluid circulating in the intervals B.
  • the pairs are assembled by welding the wings of a plate directly to the edges of a plate devoid of wings of the neighboring pair.
  • the plates carrying the wings are entirely flat and the plates devoid of wings carry the depressions 26.
  • the plates devoid of wings carry the depressions 26.
  • the plates When assembling in pairs, the plates are placed head to tail, then the pairs are assembled, as before, by welding the edge of the wings to the edge of the facing plates.
  • the wings are extended by a flap 42, and the ends of plates devoid of wings comprising an extension 44.
  • the flaps and the extensions are welded flat by electric welding with a seam.
  • notches can be regularly distributed along the rear edge of the manifold, to receive these projections.
  • the exchanger plates are completely flat and during assembly in pairs, metal spacers 46 are interposed between them which are spot welded to the two plates.
  • the plates are of the corrugation type, the corrugations of one (48) having a different orientation from the corrugations (50) of the adjacent plate.
  • the plates are joined in pairs by seam welding along their edge, as seen above. It is also possible to provide for joining or not joining the two plates by spot welds in the zones where the top of the corrugations of one is in contact with the bottom of the corrugations of the other as illustrated by the points P in the figure.
  • the plates are assembled in pairs by linear welding without the addition of metal in two opposite end zones, and that at least one plate in each pair has a wing located in at least one of these extreme zones and in the vicinity of the linear weld, folded back to the square and connected in its free marginal zone to a plate opposite a neighboring pair, by linear weld.

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)
  • Separation By Low-Temperature Treatments (AREA)

Claims (7)

1. Plattenwärmetauscher mit einer Vielzahl aneinandergereihter Metallplatten (10-15), die mit Abständen (A, B) beabstandet sind, die für die Zirkulation eines ersten und parallel zu dem ersten eines zweiten Fluids bestimmt sind, wobei die Platten paarweise durch gerade Verschweissung (16, 17, 24) in den vier Randbereichen miteinander verbunden sind und die Flügel (18-23) aufweisen, die am oberen (16) und am unteren (17) Rand gegeneinander und 90 °C gebogen angeordnet sind, wobei die Paare so aneinander zusammengesetzt sind, dass die Flügel einer Platte eines ersten Paares durch geradlinige Verschweissung mit den Flügeln der gegenüberliegenden Platte des benachbarten Paares verbunden ist, wobei Fluid-Einlass- bzw. -Auslassöffnungen dieser Zwischenräume in Form von Unterbrechungen der geradlinigen Verschweissungen am oberen und unteren Rand vorgesehen sind.
2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Platten eines Paares (14-15) durch auf ihrer Oberfläche verteilte Punktschweissungen miteinander verbunden sind.
3. Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, dass die Platten Einbuchtungen (26) aufweisen und die Schweisspunkte auf den Böden dieser Einbuchtungen angeordnet sind.
4. Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, dass die Platten eben sind und die Schweisspunkte auf zwischen den Platten eingefügten Zwischenwände (46) angebracht sind.
5. Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, dass die Platten wellenförmig (48, 50) sind und verschiedene Wellenorientierungen haben.
6. Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die geraden Verschweissungen zwischen den Platten eines Paares mittels Elektroverschweissung mit einer Rollenelektrode (28, 29) hergestellt sind.
7. Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die geradlinigen Verschweissungen zwischen den Flügeln einer Platte und der benachbarten Platte mittels Bogenschweissen hergestellt sind.
EP85402573A 1984-12-21 1985-12-20 Plattenwärmetauscher Expired EP0186592B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8419707 1984-12-21
FR8419707A FR2575279B1 (fr) 1984-12-21 1984-12-21 Echangeur a plaques

Publications (2)

Publication Number Publication Date
EP0186592A1 EP0186592A1 (de) 1986-07-02
EP0186592B1 true EP0186592B1 (de) 1988-10-26

Family

ID=9310913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402573A Expired EP0186592B1 (de) 1984-12-21 1985-12-20 Plattenwärmetauscher

Country Status (5)

Country Link
US (1) US4688631A (de)
EP (1) EP0186592B1 (de)
JP (1) JPH0692877B2 (de)
DE (1) DE3565889D1 (de)
FR (1) FR2575279B1 (de)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
US6289977B1 (en) 1996-10-11 2001-09-18 Ziepack Heat exchanger, and heat exchanging beam, and related welding methods and production
EP3306253A1 (de) 2016-10-07 2018-04-11 Airec Ab Wärmetauscherplatte und wärmetauscher
EP3351886A1 (de) 2017-01-19 2018-07-25 Airec Ab Wärmetauscherplatte und wärmetauscher
EP3447427A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscher
EP3447429A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscherplatte und wärmetauscher
EP3447428A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscherplatte und wärmetauscher
EP3671096A1 (de) 2018-12-21 2020-06-24 InnoHeat Sweden AB Wärmetauscherplatte und wärmetauscher

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GB823951A (en) * 1956-03-27 1959-11-18 Parsons C A & Co Ltd Improvements in and relating to heat exchangers
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US3228464A (en) * 1963-08-09 1966-01-11 Avco Corp Corrugated plate counter flow heat exchanger
FR1389144A (fr) * 1964-03-02 1965-02-12 échangeur de chaleur
DE1455760B2 (de) * 1965-12-23 1976-04-22 Kühlvorrichtung für ein gepanzertes Fahrzeug Dr.Ing.h.c. F. Porsche AG, 7000 Stuttgart Kuehlvorrichtung fuer ein gepanzertes fahrzeug
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SE352724B (de) * 1969-11-10 1973-01-08 Thermovatic Jenssen S
CH524800A (de) * 1971-11-26 1972-06-30 Runtal Holding Co Sa Vorrichtung zur Rollnahtdichtschweissung der Seitenränder von Platten-Radiatoren
JPS5111724Y2 (de) * 1972-07-27 1976-03-30
JPS53137460A (en) * 1977-05-07 1978-11-30 Howa Mach Ltd Parting plate for heat exchanger
JPS5877218A (ja) * 1981-10-31 1983-05-10 Toshiba Corp 油入電気機器用タンクの製造方法
JPS58112874U (ja) * 1982-01-26 1983-08-02 三菱電機株式会社 熱交換装置

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6289977B1 (en) 1996-10-11 2001-09-18 Ziepack Heat exchanger, and heat exchanging beam, and related welding methods and production
EP3306253A1 (de) 2016-10-07 2018-04-11 Airec Ab Wärmetauscherplatte und wärmetauscher
US12044486B2 (en) 2016-10-07 2024-07-23 Alfa Laval Corporate Ab Heat exchanging plate and heat exchanger
US10989482B2 (en) 2017-01-19 2021-04-27 Alfa Laval Corporate Ab Heat exchanging plate and heat exchanger
EP3351886A1 (de) 2017-01-19 2018-07-25 Airec Ab Wärmetauscherplatte und wärmetauscher
WO2018133954A1 (en) 2017-01-19 2018-07-26 Airec Ab Heat exchanging plate and heat exchanger
EP3447427A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscher
WO2019038281A1 (en) 2017-08-22 2019-02-28 Airec Ab HEAT EXCHANGER PLATE AND HEAT EXCHANGER
WO2019038282A1 (en) 2017-08-22 2019-02-28 Airec Ab HEAT EXCHANGER PLATE AND HEAT EXCHANGER
WO2019038279A1 (en) 2017-08-22 2019-02-28 Airec Ab HEAT EXCHANGER
EP3447428A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscherplatte und wärmetauscher
US11105560B2 (en) 2017-08-22 2021-08-31 Innoheat Sweden Ab Heat exchanger
US11105561B2 (en) 2017-08-22 2021-08-31 Innoheat Sweden Ab Heat exchanger plate and heat exchanger
EP3447429A1 (de) 2017-08-22 2019-02-27 Airec AB Wärmetauscherplatte und wärmetauscher
EP3671096A1 (de) 2018-12-21 2020-06-24 InnoHeat Sweden AB Wärmetauscherplatte und wärmetauscher
WO2020127081A1 (en) 2018-12-21 2020-06-25 Innoheat Sweden Ab Heat exchanger plate and heat exchanger

Also Published As

Publication number Publication date
DE3565889D1 (en) 1988-12-01
EP0186592A1 (de) 1986-07-02
US4688631A (en) 1987-08-25
FR2575279B1 (fr) 1989-07-07
JPS61153500A (ja) 1986-07-12
JPH0692877B2 (ja) 1994-11-16
FR2575279A1 (fr) 1986-06-27

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