EP0798527B1 - Spiral heat exchanger - Google Patents
Spiral heat exchanger Download PDFInfo
- 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
Links
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 210000005069 ears Anatomy 0.000 claims 2
- 238000004804 winding Methods 0.000 abstract description 17
- 239000007789 gas Substances 0.000 description 8
- 230000037303 wrinkles Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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- 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
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- 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
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- 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.
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)
Abstract
Description
L'invention concerne un échangeur de chaleur enroulé en spirale, où les fluides arrivent, circulent et débouchent à contrecourant, dans la direction de l'axe d'enroulement.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.
Dans le vaste champ d'application des échangeurs de chaleur, une des applications les plus exigeantes est celle des récupérateurs pour turbines à gaz. En effet, ils doivent être compacts, de haute efficacité, peu chers et fiables. L'efficacité et la compacité peuvent s'obtenir en utilisant le concept de surface primaire, avec des canaux de petit diamètre hydraulique et en faisant circuler les deux fluides à contrecourant.
Le prix de revient sera peu élevé si l'échangeur est constitué par l'assemblage d'un petit nombre d'éléments imprimés et enroulés en continu pour former un rouleau.
Les pertes de charge seront réduites si les sections de passage offertes aux deux fluides sont suffisantes : ceci s'obtient en faisant circuler les fluides axialement et non tangentiellement dans un échangeur spirale. Les échangeurs sont soumis à de fortes charges thermiques et aux chocs thermiques résultant des variations transitoires de fonctionnement de la turbine. La fiabilité est liée à la résistance aux chocs thermiques.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.
Des échangeurs de chaleur constitués d'un enroulement d'une paire de feuillets, entre lesquels les fluides passent à contrecourant, dans le sens axial du rouleau ainsi formé, sont connus : voir pour exemple un brevet récent (1995) de la société Rolls-Royce, où le flux est distribué par des découpes pratiquées dans la feuille et soudées par paires au moment de l'enroulement.
On retrouve, dans les brevets DE 1121090 et DE 3234878, le concept d'échangeur spirale, à flux axial, où les flux entrants et sortants le font par des secteurs angulaires alternés. Dans DE 1121090, ces secteurs sont formés en découpant des ouïes régulièrement espacées dans les rebords de fermeture des côtés d'une paire de feuilles enroulées pour former l'échangeur. Dans DE 3234878, par contre, les secteurs sont formés par collage de segments d'obturation sur les deux faces de l'échangeur enroulé. Une autre variante, FR-A-2 319 868, consiste à fermer les bords par soudage direct des tôles adjacentes.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.
We find, in 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. In DE 1121090, 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. In DE 3234878, on the other hand, 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.
Une difficulté intéressante dans la conception des échangeurs de chaleur est la distribution du flux entrant dans les multiples petits canaux sièges de l'échange de chaleur et ensuite, la collecte de ces nombreux flux en un seul flux sortant. Ce processus doit avoir lieu sans pertes de charge excessives, ni création de contraintes mécaniques excessives dues aux gradients thermiques.An interesting difficulty in the design of heat exchangers is the distribution of the flow entering the multiple small channels which are the seat of the heat exchange and then, the collection of these numerous flows in a single outgoing flow. This process must take place without excessive pressure drops, or creation of excessive mechanical stresses due to thermal gradients.
La distribution et la collecte des flux s'effectuent dans les échangeurs à plaques empilées par des découpes pratiquées dans les plaques. Les rebords de ces découpes sont brasées ou soudées lors de l'empilement [ voir brevet US 4 073340 ] ou garnis d'un joint d'étanchéité, comme dans les échangeurs à plaque de la société Alfa-Laval bien connus.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.
D'autres échangeurs à plaques empilées n'ont pas ces découpes [ voir SAE 851254 : Development, Fabrication and application of a Primary Surface Gas Turbine Recuperator, E.L.Parsons], mais les côtés des plaques sont alors garnies de barrettes de fermeture.Other stacked plate heat exchangers do not have these cutouts [see SAE 851254: Development, Fabrication and application of a Primary Surface Gas Turbine Recuperator, E.L. Parons], but the sides of the plates are then fitted with closing strips.
L'invention telle que définie dans la revendication 1 se rapporte à un échangeur de chaleur formé par enroulement d'une paire de feuilles où les fluides circulent à contrecourant dans le sens de l'axe de l'enroulement et arrivent et débouchent sur les faces opposées du rouleau cylindrique constitué par l'enroulement des feuilles. On évite ainsi de créer des découpes de distribution à l'intérieur de l'échangeur, ce qui élimine à la fois les concentrations de contraintes, les problèmes de soudage, d'inspection et de réparation de ces rebords noyés dans la masse de l'échangeur. Il en résulte une plus grande liberté dans le choix des dimensions et des formes des distributeurs-collecteurs, car ils sont extérieurs à l'échangeur proprement dit. Le concept d'échangeur enroulé permet de se passer des barrettes de fermeture, puisqu'il n'y a plus de bord à fermer. La formation des ouïes d'arrivée-sortie des fluides se fait très simplement lors de l'enroulement des feuilles.The invention as defined in
L'invention est décrite ci-après à l'aide d'un exemple avec référence aux dessins joints, dans lesquels :The invention is described below using an example with reference to the accompanying drawings, in which:
La figure 1 est une vue en perspective de l'échangeur montrant les flux des fluides (air et gaz), entrant et sortant de l'échangeur.Figure 1 is a perspective view of the exchanger showing the flow of fluids (air and gas) entering and leaving the exchanger.
La figure 2 est une vue partielle des ouïes de distribution d'air et de gaz sur une des faces de l'échangeur.FIG. 2 is a partial view of the air and gas distribution openings on one of the faces of the exchanger.
La figure 3 montre un secteur d'amenée d'air coiffé de son écope de distribution, en vue éclatée.Figure 3 shows an air supply sector capped with its distribution scoop, in exploded view.
La figure 4 montre un des deux feuillets, avant enroulement, en vue partielle plane.Figure 4 shows one of the two sheets, before winding, in partial plan view.
La figure 5 montre l'autre feuillet, avant enroulement, en vue partielle plane.Figure 5 shows the other sheet, before winding, in partial plan view.
La figure 6 représente une paire de feuillets accolés dans l'échangeur, en section radiale.FIG. 6 represents a pair of sheets placed side by side in the exchanger, in radial section.
La figure 7 fait apparaître le trajet de l'air et du gaz, entre une paire de feuillets, d'une face de l'échangeur à l'autre, en vue partielle.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.
L'échangeur est constitué d'un noyau 1 auquel sont fixés des écopes 8 d'amenée et d'évacuation d'air 2, figures 1 et 3.The exchanger consists of a
Sur une face du noyau, l'air pénètre par des secteurs angulaires 5 régulièrement espacés et alternant avec des secteurs angulaires 6 de sortie des gaz.On one face of the core, the air penetrates by
Sur la face opposée du noyau, l'air sort par des secteurs angulaires 3 régulièrement espacés et alternant avec des secteurs angulaires 4 d'entrée des gaz (figure 1).
Le noyau est constitué d'un enroulement d'une paire de feuillets a et b autour d'un axe z, figure 1.On the opposite face of the core, the air exits through
The core consists of a winding of a pair of sheets a and b around a z axis, Figure 1.
Le feuillet a est ridé longitudinalement, c'est-à-dire selon l'axe d'enroulement z, tandis que le feuillet b l'est transversalement, c'est-à-dire selon la direction tangentielle d'enroulement (figures 4 et 5).
Le feuillet a possède trois zones axiales de rides : les zones II et IV près des bords et la zone III centrale (figure 4).
Le feuillet b est ridé sur ces mêmes trois zones et comporte également, sur les zones I et V d'entrée-sortie, des rebords 7 déportés alternativement pour former les ouïes d'arrivée-sortie des fluides (figures 5 et 2).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,
Les rebords déportés de b viennent contre le rebord de a et vice versa, lors de l'enroulement. Ils sont définitivement brasés ensemble, une fois l'enroulement du noyau terminé (figure 2).
Le déport alternatif des rebords de b doit se faire lors de l'enroulement et en synchronisation avec celui-ci. Il faut en effet que les ouïes ainsi formées soient de longueur croissante à chaque tour d'enroulement et en phase angulaire pour former des secteurs angulaires bien réguliers. Les écopes 8 sont ensuite brasées sur les faces du noyau 1, avec leurs bords 9 brasés sur les bords 10 des secteurs angulaires, comme indiqué figure 3.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
La somme des hauteurs des rides de a et de b est constante sur toutes les zones ; elle vaut le déport de b sur les zones I et V et permet l'enroulement sans déformation radiale de la paire ab, car elle est d'épaisseur constante équivalant à la somme des hauteurs des rides de a et de b, comme illustré par la figure 6.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.
Ceci permet aussi de joindre, par brasage par exemple, les feuilles a et b aux points de contact 11 des lignes de crête des rides. Ces points forment un quadrillage, intersection des lignes de crête des rides.This also makes it possible to join, by soldering for example, the sheets a and b to the
En ne brasant ainsi entre elles que les paires de feuilles entre lesquelles circule le fluide de pression supérieure à l'autre, on assure ainsi une rétention locale de la surpression de ce fluide, sans avoir besoin d'une enceinte de pressurisation. Les paires de feuilles ainsi jointes sont rigides en flexion, tout en étant souples en cisaillement, ce qui réduit les contraintes dues aux inévitables gradients thermiquesBy thus brazing together only the pairs of sheets between which circulates the fluid of higher pressure than the other, this ensures local retention of the overpressure of this fluid, without the need for a pressurization chamber. The pairs of sheets thus joined are rigid in bending, while being flexible in shearing, which reduces the stresses due to the inevitable thermal gradients
Dans les zones II et IV, les rides de a et de b ont des hauteurs comparables : étant perpendiculaires et en contact par leurs crêtes, elles permettent le passage de l'air et du gaz dans les deux directions, axiale et tangentielle : ces zones sont des zones de distribution du flux à partir des secteurs d'entrée vers la zone III ; ce sont des zones à flux croisés, comme indiqué sur la figure 7
Dans la zone III, les flux sont essentiellement parallèles et opposés , c'est-à-dire à contrecourant (figure 7), car les rides tangentielles de b sont minimes et celles de a, axiales, sont grandes (figure 6).In 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
In 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).
Ce type d'échangeur peut aussi être réalisé en remplaçant les rides imprimées en relief par des ailettes de même hauteur, garnissant des feuilles planesThis type of exchanger can also be produced by replacing the wrinkles printed in relief by fins of the same height, lining flat sheets.
Claims (5)
- Cylindrical heat exchanger made by coiling a pair of sheets, with both fluids circulating counterflow wise along the axis of the coil, between the adjacent pairs of sheets, in which both fluids arrive and exit on the opposite faces of the coil, through evenly spaced angular sectors; said angular sectors being formed by the juxtaposition of ears made by alternative abutting of the edge of one sheet on the other.
- Heat exchanger in accordance with claim 1 having one sheet formed with substantially longitudinal ripples and the other one with substantially transversal ripples, so that the sum of the height of the ripples is a constant equal to the abuttment that forms the ears on both faces.
- Heat exchanger in accordance with claim 2 having the pair of sheets joined or brazed at the contact points of the crests of their ripples.
- Heat exchanger in accordance with claim 1, in which one sheet has longitudinal fins and the other transverse ones.
- Heat exchanger in accordance with claim 4 in wich the pair of sheets are joined or brazed at the contact points of the crest lines of the fins.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96202200A EP0798527B1 (en) | 1996-08-05 | 1996-08-05 | Spiral heat exchanger |
| DE69600073T DE69600073T2 (en) | 1996-08-05 | 1996-08-05 | Spiral heat exchanger |
| ES96202200T ES2111410T3 (en) | 1996-08-05 | 1996-08-05 | SPIRAL HEAT EXCHANGER. |
| AT96202200T ATE159097T1 (en) | 1996-08-05 | 1996-08-05 | SPIRAL HEAT EXCHANGER |
| 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 |
| PCT/BE1997/000088 WO1998005916A1 (en) | 1996-08-05 | 1997-07-28 | Spiral heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96202200A EP0798527B1 (en) | 1996-08-05 | 1996-08-05 | Spiral heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0798527A1 EP0798527A1 (en) | 1997-10-01 |
| EP0798527B1 true EP0798527B1 (en) | 1997-10-08 |
Family
ID=8224260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96202200A Expired - Lifetime EP0798527B1 (en) | 1996-08-05 | 1996-08-05 | Spiral heat exchanger |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6263961B1 (en) |
| EP (1) | EP0798527B1 (en) |
| AT (1) | ATE159097T1 (en) |
| AU (1) | AU3934897A (en) |
| DE (1) | DE69600073T2 (en) |
| ES (1) | ES2111410T3 (en) |
| WO (1) | WO1998005916A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011595A3 (en) * | 1997-12-09 | 1999-11-09 | Ewa Nova Bvba Besloten Vennoot | Improved heat exchanger and method to realise such a heat exchanger |
| FR2785666A1 (en) * | 1998-11-09 | 2000-05-12 | Victor Sorokine | TRANSFORMER OF ROTATORY GAS ENERGY IN ORDINARY THERMAL ENERGY |
| JP3090915B1 (en) * | 1999-04-16 | 2000-09-25 | 株式会社カンキョー | Heat exchanger, method of manufacturing the same, and dehumidifier including the same |
| 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 |
| EP1308684B1 (en) * | 2000-08-10 | 2007-10-10 | Kankyo Co., Ltd. | Heat exchanger, method of manufacturing the heat exchanger, and dehumidification machine including the heat exchanger |
| 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 (en) * | 2014-12-18 | 2020-09-28 | Zehnder Group Int Ag | Heat exchanger and air conditioning apparatus therewith |
| CA3027050C (en) * | 2016-06-09 | 2021-08-17 | Fluid Handling Llc | 3d spiral heat exchanger |
| CN111197937A (en) * | 2018-11-16 | 2020-05-26 | 中国科学院工程热物理研究所 | Heat exchanger and manufacturing method thereof |
| BE1026824B1 (en) | 2018-12-03 | 2020-07-07 | Luc Prieels | Heat exchange body |
Family Cites Families (13)
| 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 (en) * | 1952-06-06 | 1954-03-12 | Yacco S A | Improvements made to exchangers, in particular to engine oil exchangers |
| DE1121090B (en) * | 1956-03-27 | 1962-01-04 | Parsons C A & Co Ltd | Heat exchange element as well as heat exchanger built up from this |
| 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 (en) * | 1975-06-05 | 1976-12-31 | Bertin & Cie | COMPACT HEAT EXCHANGER FOR FLUIDS |
| DE2534442A1 (en) * | 1975-08-01 | 1977-02-10 | Linde Ag | HEAT EXCHANGER IN SPIRAL SHEET METAL DESIGN |
| DE3234878A1 (en) * | 1982-09-21 | 1984-03-22 | Rudolf 6101 Gross-Bieberau Peschke | Counterflow heat exchanger with spiral surfaces |
| DE3404374A1 (en) * | 1984-02-08 | 1985-08-14 | W. Schmidt GmbH & Co KG, 7518 Bretten | SPIRAL HEAT EXCHANGER |
| DE4221528A1 (en) * | 1992-07-01 | 1994-01-05 | Hans Dr Viesmann | Post-heat exchanger for installation in the boiler housing and process for its manufacture |
| US5273106A (en) | 1992-07-21 | 1993-12-28 | Mechanical Technology Inc. | Self-defrosting recuperative air-to-air heat exchanger |
| EP0753712B1 (en) | 1995-07-12 | 2000-10-11 | ROLLS-ROYCE plc | A heat exchanger |
-
1996
- 1996-08-05 ES ES96202200T patent/ES2111410T3/en not_active Expired - Lifetime
- 1996-08-05 EP EP96202200A patent/EP0798527B1/en not_active Expired - Lifetime
- 1996-08-05 AT AT96202200T patent/ATE159097T1/en not_active IP Right Cessation
- 1996-08-05 DE DE69600073T patent/DE69600073T2/en not_active Expired - Fee Related
-
1997
- 1997-07-28 WO PCT/BE1997/000088 patent/WO1998005916A1/en active Application Filing
- 1997-07-28 AU AU39348/97A patent/AU3934897A/en not_active Abandoned
- 1997-07-28 US US09/308,647 patent/US6263961B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE159097T1 (en) | 1997-10-15 |
| ES2111410T3 (en) | 1998-03-01 |
| EP0798527A1 (en) | 1997-10-01 |
| WO1998005916A1 (en) | 1998-02-12 |
| AU3934897A (en) | 1998-02-25 |
| DE69600073T2 (en) | 1998-04-16 |
| DE69600073D1 (en) | 1997-12-11 |
| US6263961B1 (en) | 2001-07-24 |
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