FR2468094A2 - Heat exchanger made from spirally wound plate - has integral tubes with one fluid in tube and one flowing over spiral plate - Google Patents
Heat exchanger made from spirally wound plate - has integral tubes with one fluid in tube and one flowing over spiral plate Download PDFInfo
- Publication number
- FR2468094A2 FR2468094A2 FR7926525A FR7926525A FR2468094A2 FR 2468094 A2 FR2468094 A2 FR 2468094A2 FR 7926525 A FR7926525 A FR 7926525A FR 7926525 A FR7926525 A FR 7926525A FR 2468094 A2 FR2468094 A2 FR 2468094A2
- Authority
- FR
- France
- Prior art keywords
- heat exchanger
- discontinuities
- exchanger according
- wall
- spiral
- 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.)
- Granted
Links
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
- F28D9/04—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
- F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
On a décrit dans le brevet principal un échangeur de chaleur à deux fluides comportant un réseau de tubes pour la circulation de l'un des fluides, lesdits tubes étant solidaires d'une paroi commune, de forme développable, en contact avec ces tubes par leurs gén8ratrices,ladite paroi étant conformée en spirale et rendue solidaire de moyens d'obturation disposés perpendiculairement à cette paroi de façon à ménager un espace continu, c'est-à-dire une enceinte communiquant avec l'extérieur pour la circulation de l'autre fluide. The main patent describes a heat exchanger with two fluids comprising a network of tubes for the circulation of one of the fluids, said tubes being integral with a common wall, of developable shape, in contact with these tubes by their gener8ratrices, said wall being shaped in a spiral and made integral with shutter means arranged perpendicular to this wall so as to provide a continuous space, that is to say an enclosure communicating with the outside for the circulation of the other fluid.
Cet échangeur fonctionne parfaitement mais la présente invention y apporte une amélioration notable. This exchanger works perfectly but the present invention provides a significant improvement.
A cet effet la présente invention a pour objet des perfectionnements à l'échangeur de chaleur selon la brevet principal caractérisés par au moins I'un des points ci-dessous. To this end, the present invention relates to improvements to the heat exchanger according to the main patent, characterized by at least one of the points below.
a) La paroi conformée en spirale présente sur sa surface qui n'est pas en contact avec l'extérieur des discontinuités en creux ou en saillie de forme quelconque afin de constituer des bords d'attaque pour la circulation du fluide dans l'enceinte en spirale. a) The spiral shaped wall present on its surface which is not in contact with the outside with hollow discontinuities or projecting in any shape in order to constitute leading edges for the circulation of the fluid in the enclosure. spiral.
Les bords d'attaque multiplient le coefficient d'échan ge par rupture des couches limites. The leading edges multiply the exchange coefficient by breaking the boundary layers.
Les discontinuités peuvent présenter les formes suivantes
b) Les discontinuités sont des crevés ou perforations.The discontinuities can take the following forms
b) The discontinuities are punctures or perforations.
Dans ce cas la perte de charge globale due à la circulation du fluide dans l'enceinte en spirale est notablement diminuée. In this case, the overall pressure drop due to the circulation of the fluid in the spiral enclosure is notably reduced.
c) Les discontinuités sont des creusures sur une partie de l'épaisseur de la paroi. c) The discontinuities are hollows over part of the thickness of the wall.
d) Les discontituités sont des saillies rapportées sur la paroi, par exemple par soudage. d) The discontinuities are projections attached to the wall, for example by welding.
e) Les discontinuités sont une association de crevés et de saillies. e) The discontinuities are a combination of punctures and projections.
f) Les discontinuités sont une association de creusures et de saillies. f) The discontinuities are a combination of hollows and projections.
g) Les discontinuités se trouvent sur toute la surface de la paroi qui n'est pas en contact avec l'extérieur. g) The discontinuities are found on the entire surface of the wall which is not in contact with the outside.
h) Les discontinuités se trouvent sur une partie de la paroi qui n'est pas en contact avec l'extérieur. h) The discontinuities are on a part of the wall which is not in contact with the outside.
i) L'écartement entre les spires de l'enceinte en spirale diminue progressivement vers la sortie des gaz brillées afin d'augmenter le rendement. i) The spacing between the turns of the spiral enclosure decreases progressively towards the outlet of the bright gases in order to increase the efficiency.
j) L'échangeur de chaleur comporte des moyens pour faire passer les gaz brûlés après la sortie de l'enceinte en spirale sur l'obturation à l'extrémité de la spirale éloignée de l'entrée des gaz chauds afin de sécher complètement les gaz halés. j) The heat exchanger includes means for passing the burnt gases after leaving the enclosure in a spiral over the closure at the end of the spiral away from the inlet of the hot gases in order to completely dry the gases. hauled.
Afin de mieux faire comprendre l'invention on en décrira ci-dessous quelques modes de réalisation donnés à titre d'exemples nullement limitatifs en se référant au dessin annexé dans lequel
La Fig. 1 représente une vue en perspective avec arrachement d'un échangeur de chaleur suivant l'invention présentant différentes formes de crevés;
La Fig. 2 est une vue en perspective de la paroi constitutive de l'échangeur; et
La Fig; 3 est une vue en perspective représentant très schématiquement un dispositif pour réchauffer les gaz brillées. In order to better understand the invention, a few embodiments will be described below, given by way of non-limiting examples with reference to the appended drawing in which
Fig. 1 shows a perspective view with cutaway of a heat exchanger according to the invention having different forms of punctures;
Fig. 2 is a perspective view of the wall constituting the exchanger; and
Fig; 3 is a perspective view very schematically showing a device for heating the bright gases.
On voit sur la Fig. 1 un échangeur de chaleur à deux fluides, chacun des fluides étant respectivement signalé par les repères A et B, et le sens de circulation des fluides étant indiqué par des flèches. L'échangeur comprend un réseau de tubes 1 pour la circulation du fluide B, ces tubes étant solidaires d'une paroi 2 en contact avec lesdits tubes par leurs génératrices. We see in Fig. 1 a heat exchanger with two fluids, each of the fluids being respectively indicated by the marks A and B, and the direction of circulation of the fluids being indicated by arrows. The exchanger comprises a network of tubes 1 for the circulation of the fluid B, these tubes being integral with a wall 2 in contact with said tubes by their generatrices.
Comme on l'a déjà expliqué dans le brevet principal la paroi 2 a été obtenue en soudant partiellement deux tales a et b (Fig. 2) en alliage d'aluminium ou en alliage inoxydable et en gonflant aux endroits non soudés pour obtenir les régions tubulaires c. As already explained in the main patent, the wall 2 was obtained by partially welding two sheets a and b (Fig. 2) of aluminum alloy or stainless alloy and inflating at the non-welded places to obtain the regions tubular c.
La paroi 2 a été ensuite conformée en spirale de fa çon à constituer entre les spires successives un espace 3 dans lequel circule le fluide A, des couvercles 4 et 5 obligeant le fluide à entrer en 6 et à sortir en 7, et des collecteurs 8, interrompus en 9 obligeant'le fluide à se diriger d'un collecteur vers le suivant. The wall 2 was then shaped in a spiral so as to constitute between the successive turns a space 3 in which the fluid A circulates, covers 4 and 5 forcing the fluid to enter at 6 and to exit at 7, and collectors 8 , interrupted at 9 forcing the fluid to go from one collector to the next.
Sur la surface de la paroi 2 qui n'est pas en contact avec l'extérieur on a prévu des discontinuités constituées par des crevés 10a, lOb, lOc qui traversent toute la paroi comme on le voit sir la Fig. 2. Ces crevés peuvent être de petites dimensions comme les crevés lOa, de forme allongée et situés près d'une extrémité du dispositif comme les crevés lOb; ou de forme encore plus allongée comme les crevés lOc. On the surface of the wall 2 which is not in contact with the outside, there are provided discontinuities constituted by punctures 10a, 10b, 10c which cross the whole wall as seen in FIG. 2. These punctures can be of small dimensions like the punctures 10a, of elongated shape and located near one end of the device like the punctures 10b; or even more elongated like the punctured lOc.
Ces perforations peuvent naturellement n'exister que sur certaines spires. Les bords d'attaque de ces perforations opèrent des ruptures des couches limites ce qui augmente le rendement de l'appareil. En outre les perforations diminuent notablement les pertes de charge dues à la circulation du fluide dans l'espace en spirale. These perforations may naturally only exist on certain turns. The leading edges of these perforations break the boundary layers, which increases the efficiency of the device. In addition, the perforations significantly reduce the pressure losses due to the circulation of the fluid in the spiral space.
Comme on l'a expliqué plus haut les discontinuités peuvent également être constituées par des creusures sur une partie de l'épaisseur de la paroi, ou par des saillies ou par une combinaison de ces trois discontinuités. Elletteuvent aussi n'exister que sur une partie de la surface de la paroi 2 qui n'est pas en contact avec l'extérieur. As explained above, the discontinuities can also be formed by recesses over part of the thickness of the wall, or by projections or by a combination of these three discontinuities. They can also exist only on a part of the surface of the wall 2 which is not in contact with the outside.
Pour augmenter encore le rendement on conforme la paroi en spirale de façon que l'écartement entre les spires diminue progressivement vers la sortie des gaz brillés, de façon à augmenter l'échange de chaleur au fur et à mesure que la température des gaz diminue. To further increase the efficiency, the spiral wall is conformed so that the spacing between the turns decreases progressively towards the outlet of the bright gases, so as to increase the heat exchange as the temperature of the gases decreases.
Enfin un dispositif simple opérant le séchage des gaz brtlés est représenté très schématiquement à la Fig. 3. Finally, a simple device operating the drying of the burnt gases is shown very schematically in FIG. 3.
Sur le couvercle supérieur 4 a été monté un élément 11 en forme de U. Un flux dérivé du fluide A arrive en A1 à une extrémité de l'élément en U et en ressort en A2 ol il vient se mélanger au fluide A pour le sécher. A U-shaped element 11 has been mounted on the upper cover 4. A flow derived from the fluid A arrives at A1 at one end of the U-shaped element and exits at A2 where it mixes with the fluid A to dry it. .
Bien entendu, les modes de réalisation décrits cidessus et représentés sur le dessin ne sont donnés qu'à titre de simples exemples non limitatifs, et il va de soi que l'on pourra modifier de toute façon convenable, la forme, la disposition, la nature, le montage de leurs éléments sans, pour cela, sortir du cadre de l'invention. Of course, the embodiments described above and shown in the drawing are given only by way of nonlimiting examples, and it goes without saying that we can modify in any suitable manner, the shape, the arrangement, the nature, the mounting of their elements without, for this, departing from the scope of the invention.
Claims (11)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7926525A FR2468094B2 (en) | 1979-04-26 | 1979-10-25 | HEAT EXCHANGER WITH SPIRAL WALLS FORMING ASSOCIATED TUBES |
AT0202980A AT369533B (en) | 1979-04-26 | 1980-04-15 | HOT WATER HEATER |
DE3014506A DE3014506C2 (en) | 1979-04-26 | 1980-04-16 | Heat exchanger with a spiral space for heat exchange between at least two media |
GB8012733A GB2048452B (en) | 1979-04-26 | 1980-04-17 | Heat exchanger eg for heating water |
NL8002250A NL8002250A (en) | 1979-04-26 | 1980-04-17 | HEAT EXCHANGER WITH SPIRAL SPACE. |
PT71112A PT71112A (en) | 1979-04-26 | 1980-04-18 | HEAT EXCHANGER WITH SPIRAL SPEAKER |
ES490766A ES490766A0 (en) | 1979-04-26 | 1980-04-22 | IMPROVEMENTS IN HEAT EXCHANGERS |
BE2/58527A BE882920A (en) | 1979-04-26 | 1980-04-23 | SPIRAL ENCLOSED HEAT EXCHANGER |
LU82393A LU82393A1 (en) | 1979-04-26 | 1980-04-23 | SPIRAL ENCLOSED HEAT EXCHANGER |
IT09414/80A IT1175394B (en) | 1979-04-26 | 1980-04-24 | SPIRAL ROOM HEAT EXCHANGER |
CH316280A CH635922A5 (en) | 1979-04-26 | 1980-04-24 | SPIRAL ENCLOSED HEAT EXCHANGER AND METHODS OF MAKING SAME. |
BR8002561A BR8002561A (en) | 1979-04-26 | 1980-04-25 | HEAT EXCHANGER |
US06/819,617 US4655174A (en) | 1979-04-26 | 1986-01-17 | Hot liquid generator with condensation and installation incorporating this generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7910656A FR2455260B1 (en) | 1979-04-26 | 1979-04-26 | SPIRAL WALL HEAT EXCHANGER FORMING ASSOCIATED TUBES |
FR7926525A FR2468094B2 (en) | 1979-04-26 | 1979-10-25 | HEAT EXCHANGER WITH SPIRAL WALLS FORMING ASSOCIATED TUBES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2468094A2 true FR2468094A2 (en) | 1981-04-30 |
FR2468094B2 FR2468094B2 (en) | 1986-11-21 |
Family
ID=26221129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7926525A Expired FR2468094B2 (en) | 1979-04-26 | 1979-10-25 | HEAT EXCHANGER WITH SPIRAL WALLS FORMING ASSOCIATED TUBES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2468094B2 (en) |
-
1979
- 1979-10-25 FR FR7926525A patent/FR2468094B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2468094B2 (en) | 1986-11-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2955929A1 (en) | CONDENSED HEAT EXCHANGER FOR MULTIPLE FLUIDS AND DEVICE FOR PRODUCING HOT FLUIDS COMPRISING SUCH AN EXCHANGER | |
WO2012056179A2 (en) | Heat recuperation device for an exhaust line | |
FR2526146A1 (en) | HEAT EXCHANGER WITH EXCHANGE ELEMENT PROVIDED WITHIN A BOX | |
LU82393A1 (en) | SPIRAL ENCLOSED HEAT EXCHANGER | |
US7322403B2 (en) | Heat exchanger with modified tube surface feature | |
FR2939187A1 (en) | SPIRE HEAT EXCHANGER AND AIR CONDITIONING DEVICE COMPRISING SUCH A HEAT EXCHANGER | |
EP0133604B1 (en) | Boiler with a helical heat exchanger | |
EP0117829B2 (en) | Tubular heat exchanger | |
EP0481842B1 (en) | Heater for the liquid of a window washing arrangement for motor vehicles | |
FR2982662A1 (en) | SPIRAL-SHAPED EXCHANGER AND METHOD OF MANUFACTURING SUCH EXCHANGER | |
FR2468094A2 (en) | Heat exchanger made from spirally wound plate - has integral tubes with one fluid in tube and one flowing over spiral plate | |
FR2594941A1 (en) | Dry-process condensation boiler | |
EP0051036B1 (en) | Surface heat exchanger for the recuperation of heat | |
EP0110763A1 (en) | Heating plant equipped with an absorption heat pump | |
FR2723632A1 (en) | Low temperature boiler heat exchanger encasing cylindrical boiler furnace | |
EP1593925B1 (en) | Plate heat exchanger | |
EP0097662B1 (en) | Bladed heat exchanger, particularly for a convector | |
EP0086162A1 (en) | High temperature heat exchanger with a metallic pipe bundle | |
FR2846406A1 (en) | Heat exchanger includes central parallelepiped body with two opposed ends covered by convex housings soldered to body, with deformation formed in convex wall near to connection zone | |
FR2462684A1 (en) | Spiral plate heat exchanger - contains parallel tubes joined by end headers with regular perforations | |
FR2521269A1 (en) | Condensation boiler with liquid fuel burner - has circular tubular heat exchanger for water below combustion chamber | |
FR2471571A1 (en) | Heat exchanger for cylindrical burner - has exterior finned vertical water tubes surrounding burner connected by headers | |
BE509170A (en) | ||
BE495796A (en) | ||
BE410582A (en) |