EP0798527B1 - Spiral-Wärmetauscher - Google Patents

Spiral-Wärmetauscher Download PDF

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Publication number
EP0798527B1
EP0798527B1 EP96202200A EP96202200A EP0798527B1 EP 0798527 B1 EP0798527 B1 EP 0798527B1 EP 96202200 A EP96202200 A EP 96202200A EP 96202200 A EP96202200 A EP 96202200A EP 0798527 B1 EP0798527 B1 EP 0798527B1
Authority
EP
European Patent Office
Prior art keywords
sheet
heat exchanger
sheets
angular sectors
core
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 - Lifetime
Application number
EP96202200A
Other languages
English (en)
French (fr)
Other versions
EP0798527A1 (de
Inventor
Hubert Antoine
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.)
Antoine Hubert
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
Priority to AT96202200T priority Critical patent/ATE159097T1/de
Application filed by Individual filed Critical Individual
Priority to EP96202200A priority patent/EP0798527B1/de
Priority to ES96202200T priority patent/ES2111410T3/es
Priority to DE69600073T priority patent/DE69600073T2/de
Priority to PCT/BE1997/000088 priority patent/WO1998005916A1/fr
Priority to US09/308,647 priority patent/US6263961B1/en
Priority to AU39348/97A priority patent/AU3934897A/en
Publication of EP0798527A1 publication Critical patent/EP0798527A1/de
Application granted granted Critical
Publication of EP0798527B1 publication Critical patent/EP0798527B1/de
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
    • F28D9/0012—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 apparatus having an annular form
    • F28D9/0018—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 apparatus having an annular form without any annular circulation of the heat exchange media
    • 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
    • F28D9/04—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 being formed by spirally-wound plates or laminae
    • 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
    • Y10S165/398—Spirally bent heat exchange plate

Definitions

  • the invention relates to a heat exchanger wound in a spiral, where the fluids arrive, circulate and open in countercurrent, in the direction of the winding axis.
  • recuperators for gas turbines In the wide field of application of heat exchangers, one of the most demanding applications is that of recuperators for gas turbines. Indeed, they must be compact, high efficiency, inexpensive and reliable. Efficiency and compactness can be obtained by using the concept of primary surface, with channels of small hydraulic diameter and by circulating the two counter-current fluids. The cost price will be low if the exchanger consists of the assembly of a small number of printed elements and continuously wound to form a roll. The pressure drops will be reduced if the passage sections offered to the two fluids are sufficient: this is obtained by circulating the fluids axially and not tangentially in a spiral exchanger. The exchangers are subjected to high thermal loads and thermal shocks resulting from transient variations in the operation of the turbine. Reliability is linked to resistance to thermal shock.
  • Heat exchangers consisting of a winding of a pair of sheets, between which the fluids pass countercurrently, in the axial direction of the roll thus formed, are known: see for example a recent patent (1995) from the company Rolls- Royce, where the flux is distributed by cutouts made in the sheet and welded in pairs at the time of winding.
  • patents DE 1121090 and DE 3234878 the concept of spiral exchanger, with axial flow, where the incoming and outgoing flows make it by alternating angular sectors.
  • these sectors are formed by cutting regularly spaced openings in the closing edges of the sides of a pair of sheets wound to form the exchanger.
  • DE 3234878 the sectors are formed by bonding closure segments on the two faces of the wound exchanger.
  • Another variant, FR-A-2 319 868 consists in closing the edges by direct welding of the adjacent sheets.
  • the distribution and the collection of flows are carried out in plate exchangers stacked by cutouts made in the plates.
  • the edges of these cutouts are brazed or welded during stacking [see US Pat. No. 4,073,340] or lined with a seal, as in the well-known plate exchangers from Alfa-Laval.
  • the invention as defined in claim 1 relates to a heat exchanger formed by winding a pair of sheets in which the fluids circulate in opposite directions in the direction of the axis of the winding and arrive and open on the faces opposite of the cylindrical roller formed by the winding of the sheets.
  • This avoids creating distribution cutouts inside the exchanger, which eliminates both stress concentrations, welding problems, inspection and repair of these flanges embedded in the mass of the exchanger.
  • the wrapped exchanger concept eliminates the need for closing bars, since there is no longer any edge to close.
  • the formation of the inlet-outlet openings of the fluids is very simple during the winding of the sheets.
  • Figure 1 is a perspective view of the exchanger showing the flow of fluids (air and gas) entering and leaving the exchanger.
  • FIG. 2 is a partial view of the air and gas distribution openings on one of the faces of the exchanger.
  • Figure 3 shows an air supply sector capped with its distribution scoop, in exploded view.
  • Figure 4 shows one of the two sheets, before winding, in partial plan view.
  • Figure 5 shows the other sheet, before winding, in partial plan view.
  • FIG. 6 represents a pair of sheets placed side by side in the exchanger, in radial section.
  • Figure 7 shows the path of air and gas, between a pair of sheets, from one side of the exchanger to the other, in partial view.
  • the exchanger consists of a core 1 to which are attached scoops 8 for supplying and discharging air 2, FIGS. 1 and 3.
  • the air penetrates by angular sectors 5 regularly spaced and alternating with angular sectors 6 for the outlet of the gases.
  • the core consists of a winding of a pair of sheets a and b around a z axis, Figure 1.
  • the sheet a is wrinkled longitudinally, that is to say along the winding axis z, while the sheet b is transversely, that is to say along the tangential winding direction ( Figures 4 and 5).
  • the sheet a has three axial zones of wrinkles: zones II and IV near the edges and zone III central (figure 4).
  • the sheet b is wrinkled on these same three zones and also comprises, on the zones I and V of entry-exit, flanges 7 offset alternately to form the gates of arrival-exit of the fluids (FIGS. 5 and 2).
  • the offset edges of b come against the edge of a and vice versa, during winding. They are definitively brazed together, once the core has been wound up ( Figure 2). The alternative offset of the edges of b must be done during winding and in synchronization with it. It is indeed necessary that the gills thus formed are of increasing length at each winding turn and in angular phase to form very regular angular sectors.
  • the scoops 8 are then brazed on the faces of the core 1, with their edges 9 brazed on the edges 10 of the angular sectors, as indicated in FIG. 3.
  • the sum of the heights of the wrinkles of a and b is constant over all areas; it is worth the offset of b on the zones I and V and allows the winding without radial deformation of the pair ab, because it is of constant thickness equivalent to the sum of the heights of the wrinkles of a and b, as illustrated by the figure 6.
  • zones II and IV the wrinkles of a and b have comparable heights: being perpendicular and in contact with their crests, they allow the passage of air and gas in both directions, axial and tangential: these zones are distribution zones of the flow from the entry sectors to zone III; these are cross-flow areas, as shown in Figure 7
  • zone III the flows are essentially parallel and opposite, that is to say against the current (Figure 7), because the tangential wrinkles of b are minimal and those of a, axial, are large ( Figure 6).
  • This type of exchanger can also be produced by replacing the wrinkles printed in relief by fins of the same height, lining flat sheets.

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  • 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 (5)

  1. Zylindrischer Wärmeaustauscher erhalten durch das Aufwickeln eines Paares von Blättern, wobei die zwei Ströme in entgegengesetzter Richtung axial zur Aufrollrichtung zwischen den gegeneinanderliegenden Blätterpaaren fließen, daß sie an den gegen die Aufrollrichtung liegenden Seiten durch gleich große Kreisringsektoren ein- und austreten, dadurch gekennzeichnet, daß die aufeinanderfolgenden Sektoren gebildet werden durch das Aneinanderlegen der Öffnungen die entstehen durch ein abwechselndes Einbuchten des Randes eines der Blätter gegenüber dem anderen.
  2. Der Wärmeaustauscher nach Anspruch 1, dadurch gekennzeichnet, daß eines der Blätter eine Reliefprägung aus längsliegenden Wellungen und das andere Blatt eine Prägung aus querliegenden Wellungen aufweist, so daß von der einen zur anderen Seite des Austauschers die Summe der Höhen der Wellungen der beiden Blätter konstant ist und gleich der Einbuchtung die die Öffnungen auf den beiden Seiten bildet.
  3. Der Wärmeaustauscher nach Anspruch 2, dadurch gekennzeichnet, daß die beiden Blätterpaare an den Kontaktstellen der Scheitelpunkte der Wellungen paarweise entweder aneinandergelötet oder aneinandergefügt sind.
  4. Der Wärmeaustauscher nach Anspruch 1, dadurch gekennzeichnet, daß eines der Blätter mit längsliegenden Lamellen, das andere mit querliegenden Lamellen versehen ist.
  5. Der Wärmeaustauscher nach Anspruch 4, dadurch gekennzeichnet, daß die beiden Blätterpaare an den Kontaktstellen der Scheitelpunkte der Lamellen paarweise entweder aneinandergelötet oder aneinandergefügt sind.
EP96202200A 1996-08-05 1996-08-05 Spiral-Wärmetauscher Expired - Lifetime EP0798527B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP96202200A EP0798527B1 (de) 1996-08-05 1996-08-05 Spiral-Wärmetauscher
ES96202200T ES2111410T3 (es) 1996-08-05 1996-08-05 Intercambiador de calor en espiral.
DE69600073T DE69600073T2 (de) 1996-08-05 1996-08-05 Spiral-Wärmetauscher
AT96202200T ATE159097T1 (de) 1996-08-05 1996-08-05 Spiral-wärmetauscher
PCT/BE1997/000088 WO1998005916A1 (fr) 1996-08-05 1997-07-28 Echangeur de chaleur spirale
US09/308,647 US6263961B1 (en) 1996-08-05 1997-07-28 Spiral heat exchanger
AU39348/97A AU3934897A (en) 1996-08-05 1997-07-28 Spiral heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96202200A EP0798527B1 (de) 1996-08-05 1996-08-05 Spiral-Wärmetauscher

Publications (2)

Publication Number Publication Date
EP0798527A1 EP0798527A1 (de) 1997-10-01
EP0798527B1 true EP0798527B1 (de) 1997-10-08

Family

ID=8224260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96202200A Expired - Lifetime EP0798527B1 (de) 1996-08-05 1996-08-05 Spiral-Wärmetauscher

Country Status (7)

Country Link
US (1) US6263961B1 (de)
EP (1) EP0798527B1 (de)
AT (1) ATE159097T1 (de)
AU (1) AU3934897A (de)
DE (1) DE69600073T2 (de)
ES (1) ES2111410T3 (de)
WO (1) WO1998005916A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011595A3 (nl) * 1997-12-09 1999-11-09 Ewa Nova Bvba Besloten Vennoot Verbeterde warmtewisselaar en werkwijze voor het verwezenlijken van zulke warmtewisselaar.
FR2785666A1 (fr) * 1998-11-09 2000-05-12 Victor Sorokine Transformateur de l'energie rotatoire du gaz en energie thermique ordinaire
JP3090915B1 (ja) * 1999-04-16 2000-09-25 株式会社カンキョー 熱交換器、その製造方法及びそれを含む除湿機
US6289978B1 (en) * 1999-11-09 2001-09-18 Ateliers De Construction De Thermo-Echangeurs Sa Coiled heat exchanger and a method for making a coiled heat exchanger
ATE375491T1 (de) * 2000-08-10 2007-10-15 Kankyo Co Ltd Wärmetauscher, verfahren zur herstellung des wärmetauschers und entfeuchter mit einem solchen wärmetauscher
GB2372559B (en) 2001-02-21 2005-01-05 Rolls Royce Plc A heat exchanger
GB0318838D0 (en) 2003-08-12 2003-09-10 Rolls Royce Plc A heat exchanger and a method of manufacturing a heat exchanger
HUE049624T2 (hu) * 2014-12-18 2020-09-28 Zehnder Group Int Ag Hõcserélõ
WO2017214489A1 (en) * 2016-06-09 2017-12-14 Fluid Handling Llc 3d spiral heat exchanger
CN111197937A (zh) * 2018-11-16 2020-05-26 中国科学院工程热物理研究所 一种换热器及其制造方法
BE1026824B1 (fr) 2018-12-03 2020-07-07 Luc Prieels Corps d’échange thermique

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB291593A (en) * 1927-05-13 1928-06-07 Martyn Clissold Macpherson Improvements in or relating to radiators for effecting heat transference to or from fluids
US2663549A (en) * 1950-07-14 1953-12-22 Griscom Russell Co Spiral heat exchanger
FR1058090A (fr) * 1952-06-06 1954-03-12 Yacco S A Perfectionnements apportés aux échangeurs, notamment aux échangeurs d'huile pour moteurs
DE1121090B (de) * 1956-03-27 1962-01-04 Parsons C A & Co Ltd Waermeaustauschelement sowie aus diesem aufgebauter Waermeaustauscher
US3854530A (en) 1969-12-29 1974-12-17 E Jouet Heat exchanger
CA996923A (en) 1973-04-16 1976-09-14 Kenneth O. Parker Formed plate heat exchanger and method of fabricating
FR2313650A1 (fr) * 1975-06-05 1976-12-31 Bertin & Cie Echangeur de chaleur compact pour fluides
DE2534442A1 (de) * 1975-08-01 1977-02-10 Linde Ag Waermeaustauscher in spiralblechbauart
DE3234878A1 (de) * 1982-09-21 1984-03-22 Rudolf 6101 Gross-Bieberau Peschke Gegenstrom-waermetauscher mit spiralfoermigen flaechen
DE3404374A1 (de) * 1984-02-08 1985-08-14 W. Schmidt GmbH & Co KG, 7518 Bretten Spiralwaermetauscher
DE4221528A1 (de) * 1992-07-01 1994-01-05 Hans Dr Viesmann Nachschaltwärmetauscher für den Einbau in Heizkesselgehäuse und Verfahren zu dessen Herstellung
US5273106A (en) 1992-07-21 1993-12-28 Mechanical Technology Inc. Self-defrosting recuperative air-to-air heat exchanger
DE69610589T2 (de) 1995-07-12 2001-02-08 Rolls Royce Plc Wärmetauscher

Also Published As

Publication number Publication date
US6263961B1 (en) 2001-07-24
EP0798527A1 (de) 1997-10-01
ES2111410T3 (es) 1998-03-01
DE69600073T2 (de) 1998-04-16
ATE159097T1 (de) 1997-10-15
DE69600073D1 (de) 1997-12-11
WO1998005916A1 (fr) 1998-02-12
AU3934897A (en) 1998-02-25

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