LU86894A1 - IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE - Google Patents
IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE Download PDFInfo
- Publication number
- LU86894A1 LU86894A1 LU86894A LU86894A LU86894A1 LU 86894 A1 LU86894 A1 LU 86894A1 LU 86894 A LU86894 A LU 86894A LU 86894 A LU86894 A LU 86894A LU 86894 A1 LU86894 A1 LU 86894A1
- Authority
- LU
- Luxembourg
- Prior art keywords
- heat exchanger
- tube
- particularly suitable
- domestic use
- improved heat
- Prior art date
Links
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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/026—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Iψ~~ I * \Iψ ~~ I * \
Echangeur de chaleur perfectionné, convenant particulièrement aux chaudières à gaz à usage domestique.Improved heat exchanger, particularly suitable for gas boilers for domestic use.
La présente invention se rapporte à un type nouveau d'échangeur 5 de chaleur qui est extrêmement compact, efficace, sûr, économique et qui peut être démonté facilement et rapidement en vue de l'entretien et du nettoyage, et qui convient donc particulièrement à une utilisation dans les chaudières à gaz à usage domestique, notamment pour la production d'eau chaude.The present invention relates to a new type of heat exchanger which is extremely compact, efficient, safe, economical and which can be disassembled easily and quickly for maintenance and cleaning, and which is therefore particularly suitable for a use in gas boilers for domestic use, in particular for the production of hot water.
10 Comme il est bien connu de l'homme de l'art, dans ces chaudiè res, l'eau chaude est chauffée par l'intermédiaire d'un échangeur de chaleur.As is well known to those skilled in the art, in these boilers, the hot water is heated by means of a heat exchanger.
Dans l'état actuel de la technique, divers types d'échangeurs de chaleur appropriés sont déjà connus.In the current state of the art, various types of suitable heat exchangers are already known.
15 L'échangeur de chaleur le plus largement utilisé est celui qui comporte un serpentin dans lequel s'écoule l'eau chaude, et qui est enveloppé extérieurement par l'eau du système de chauffage. Cependant, un échangeur de chaleur de ce type présente l'inconvénient important de n'être pas facilement accessible, de sorte que les dépôts calcaires 20 restant dans le serpentin contenant l'eau chaude, qui est généralement une eau dure, ne peuvent être enlevés si ce n'est par des moyens chimiques et, par conséquent, d'une manière qui n'est ni sûre ni contrôlable.The most widely used heat exchanger is that which has a coil in which hot water flows, and which is enveloped externally by water from the heating system. However, a heat exchanger of this type has the significant drawback of not being easily accessible, so that the lime deposits remaining in the coil containing the hot water, which is generally hard water, cannot be removed. if not by chemical means and therefore in a manner that is neither safe nor controllable.
D'autres types connus d'échangeur de chaleur, tels que les 25 types à plateaux ou ceux qui comportent plusieurs serpentins amovibles, éliminent la difficulté mentionnée ci-dessus mais cependant sont défavorablement affectés par la présence nécessaire de joints d'étanchéité qui, en cas de rupture, n'empêchent pas le transfert des liquides, c'est-à-dire le mélange de l'eau chaude avec l'eau du système de chauf-30 fage. En outre, du fait qu'ils font appel à des techniques plus compliquées de fabrication, ces joints augmentent le coût de l'appareil.Other known types of heat exchanger, such as the plate types or those which have several removable coils, eliminate the difficulty mentioned above but are however adversely affected by the necessary presence of seals which, in in case of rupture, do not prevent the transfer of liquids, that is to say the mixing of hot water with water from the heating system. In addition, because they use more complicated manufacturing techniques, these seals increase the cost of the device.
La présente invention a expressément pour objet d'éliminer les inconvénients mentionnés ci-dessus, en fournissant donc un échangeur de chaleur qui permette d'accéder facilement à la surface d'échange de 35 chaleur exposée à l'eau chaude et qui permette, par conséquent, 2The object of the present invention is expressly to eliminate the drawbacks mentioned above, by therefore providing a heat exchanger which allows easy access to the heat exchange surface exposed to hot water and which allows, by therefore 2
* X* X
d'éliminer complètement tous les dépôts calcaires de cette surface ; qui soit simple, compact et donc économique et qui assure également une sécurité constante de fonctionnement sans possibilité de transfert des fluides.completely remove all lime deposits from this surface; which is simple, compact and therefore economical and which also ensures constant operating safety without the possibility of transferring fluids.
5 Cet objet est sensiblement atteint par un tube de forme appro priée qui, présentant un renflement torsadé en hélice et obtenu par moulage hydraulique, détermine respectivement au moyen d'un tube coaxial intérieur et d'un tube extérieur, également coaxial, les deux trajets hélicoïdaux d'écoulement utilisés pour le retour d'eau chaude 10 du système de chauffage, qui s'élève dans le tube intérieur, et pour l'eau à chauffer.5 This object is substantially achieved by a tube of suitable shape which, having a helically twisted bulge and obtained by hydraulic molding, determines respectively by means of an inner coaxial tube and an outer tube, also coaxial, the two paths. helical flow used for the return of hot water from the heating system, which rises in the inner tube, and for the water to be heated.
De cette manière, l'échangeur de chaleur dans son ensemble est formé de trois tubes simplement emboîtés coaxialement les uns dans les autres et formant un système qui est compact et facile à démonter et 15 est donc d'accès aisé. En outre, toute possibilité de transfert de fluides est empêchée par un double joint torique étanche, prévu à chaque extrémité de l'échangeur de chaleur. L'économie du système est évidente en raison du fait que le renflement en hélice du tube principal est obtenu simplement par moulage hydraulique.In this way, the heat exchanger as a whole is formed by three tubes simply interlocked coaxially with one another and forming a system which is compact and easy to dismantle and is therefore easy to access. In addition, any possibility of transferring fluids is prevented by a tight double O-ring, provided at each end of the heat exchanger. The economy of the system is evident due to the fact that the helical bulge of the main tube is obtained simply by hydraulic molding.
20 La présente invention sera bien comprise à la lecture de la description suivante faite en relation avec les dessins ci-joints, dans lesquels : - la figure 1 représente une vue en perspective, partiellement écorchée, d'un échangeur de chaleur réalisé suivant la présente inven- 25 tion ; et - la figure 2 est une vue partiellement écorchée, à une échelle' différente, des trois éléments séparés qui forment l'échangeur de chaleur.The present invention will be clearly understood on reading the following description made in relation to the attached drawings, in which: - Figure 1 shows a perspective view, partially cut away, of a heat exchanger produced according to the present invention; and - Figure 2 is a partially cut away view, on a different scale, of the three separate elements which form the heat exchanger.
On se reportera maintenant aux figures. La référence numérique 30 1 désigne un tube présentant un renflement torsadé en hélice et obtenu par moulage hyraulique ; ce tube est introduit coaxialement, de manière à se trouver intercalé entre un tube intérieur 2 et un tube extérieur 3.We will now refer to the figures. The reference numeral 30 1 designates a tube having a swelling twisted in a helix and obtained by hydraulic molding; this tube is introduced coaxially, so as to be interposed between an inner tube 2 and an outer tube 3.
Ce tube torsadé comporte, à son extrémité de base 4, deux 35 joints toriques 5 et 6 qui constituent des joints étanches entre le ' i » 3 tube 1 et le tube extérieur 3, et un tube 7 de support qui est simplement fixé par une bride sur l'extrémité du tube 3. L'extrémité du tube torsadé 1 se termine, par contre, par un col 8 qui est fermé hermétiquement, par l'intermédiaire des joints toriques étanches 10 et 11, par 5 un bouchon 9 de mise à l'air libre. Le même joint 11, pressé contre le rebord intérieur 12 formé à l'extrémité supérieure du tube extérieur 3, crée également un joint hermétique d'étanchéité entre le tube 1 et le tube 3. Enfin, le tube intérieur 2 se termine à sa base par un rétrécissement 13 en forme d'entonnoir, de sorte qu'il se crée une chambre 10 collectrice d'eau 14'.This twisted tube has, at its base end 4, two O-rings 5 and 6 which constitute tight seals between the tube 3 and the outer tube 3, and a support tube 7 which is simply fixed by a flange on the end of the tube 3. The end of the twisted tube 1 ends, on the other hand, by a neck 8 which is hermetically closed, by means of the sealed O-rings 10 and 11, by 5 a stopper 9 outdoors. The same seal 11, pressed against the inner rim 12 formed at the upper end of the outer tube 3, also creates a hermetic seal between the tube 1 and the tube 3. Finally, the inner tube 2 ends at its base by a narrowing 13 in the form of a funnel, so that a water collecting chamber 10 14 'is created.
De cette manière, entre les trois tubes coaxiaux 1, 2 et 3 sont formées deux chambres de forme hélicoïdale dont la chambre intérieure 14, située entre le tube intérieur 2 et le tube torsadé 1, constitue le trajet d'écoulement de retour, dans le sens indiqué par les flèches 15, 15 de l'eau chaude du système de chauffage introduite dans le tube intérieur 2 dans le sens indiqué par la flèche 16. L'autre chambre 17 en forme d'hélice est située, par contre, entre le tube torsadé 1 et le tube extérieur 3, et est traversée par l'eau à chauffer qui est introduite froide dans la chambre par l'entrée 18 prévue à la base du tube 20 extérieur 3 et qui est évacuée chaude par la sortie 19 également prévue à l'extrémité du tube extérieur 3. Le trajet suivi par l'eau chaude dans la chambre 17 est indiqué par les flèches 20 à la figure 1.In this way, between the three coaxial tubes 1, 2 and 3 are formed two helically shaped chambers, the inner chamber 14, located between the inner tube 2 and the twisted tube 1, constitutes the return flow path, in the direction indicated by the arrows 15, 15 of the hot water from the heating system introduced into the inner tube 2 in the direction indicated by the arrow 16. The other chamber 17 in the form of a helix is, on the other hand, located between the twisted tube 1 and the outer tube 3, and is crossed by the water to be heated which is introduced cold into the chamber by the inlet 18 provided at the base of the outer tube 3 and which is discharged hot through the outlet 19 also provided at the end of the outer tube 3. The path followed by the hot water in the chamber 17 is indicated by the arrows 20 in FIG. 1.
La présente invention n'est pas limitée aux exemples de réalisation qui viennent d'être décrits, elle est au contraire susceptible 25 de variantes et de modifications qui apparaîtront à l'homme de l'art.The present invention is not limited to the exemplary embodiments which have just been described, it is on the contrary susceptible of variants and modifications which will appear to those skilled in the art.
Claims (3)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8711495A GB2204945B (en) | 1987-05-22 | 1987-05-15 | Heat exchanger for the domestic heating of water |
| LU86894A LU86894A1 (en) | 1987-05-22 | 1987-05-22 | IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE |
| NL8701232A NL193121C (en) | 1987-05-22 | 1987-05-22 | Heat exchanger and use of such a heat exchanger in a gas heating unit. |
| FR8707260A FR2615608B1 (en) | 1987-05-22 | 1987-05-22 | IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE |
| AT131887A AT388445B (en) | 1987-05-22 | 1987-05-22 | HEAT EXCHANGER |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU86894A LU86894A1 (en) | 1987-05-22 | 1987-05-22 | IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE |
| LU86894 | 1987-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU86894A1 true LU86894A1 (en) | 1987-12-16 |
Family
ID=19730927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU86894A LU86894A1 (en) | 1987-05-22 | 1987-05-22 | IMPROVED HEAT EXCHANGER, PARTICULARLY SUITABLE FOR GAS BOILERS FOR DOMESTIC USE |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT388445B (en) |
| FR (1) | FR2615608B1 (en) |
| GB (1) | GB2204945B (en) |
| LU (1) | LU86894A1 (en) |
| NL (1) | NL193121C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2577031A1 (en) * | 2010-06-01 | 2013-04-10 | Delphi Technologies, Inc. | Exhaust gas heat recovery heat exchanger |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989007230A1 (en) * | 1988-02-05 | 1989-08-10 | Heat Transfer Pty. Ltd. | Heat exchanger |
| US6719784B2 (en) | 2001-11-21 | 2004-04-13 | Scimed Life Systems, Inc. | Counter rotational layering of ePTFE to improve mechanical properties of a prosthesis |
| US7293603B2 (en) | 2004-11-06 | 2007-11-13 | Cox Richard D | Plastic oil cooler |
| DE102005003964B4 (en) * | 2005-01-27 | 2011-07-21 | Ehrfeld Mikrotechnik BTS GmbH, 55234 | Continuous flow through heat exchanger for fluid media |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE569027C (en) * | 1933-01-27 | Bergedorfer Eisenwerk Akt Ges | Closed countercurrent cooler for milk and other liquids, which consists of three concentrically arranged coats | |
| DE78022C (en) * | 1900-01-01 | G. HORN, Braunschweig | Gas cooler with two nested, oppositely wound screw jacket surfaces | |
| GB326278A (en) * | 1928-12-31 | 1930-03-13 | Birmingham Aluminium Casting | A new or improved heat exchanger or condenser |
| US2456775A (en) * | 1944-11-16 | 1948-12-21 | Arthur J Fausek | Heat exchanger |
| DE815805C (en) * | 1948-10-02 | 1951-10-04 | Demag Elektrometallurgie Gmbh | Cooling device |
| BE504831A (en) * | 1950-07-24 | |||
| US2653588A (en) * | 1950-12-21 | 1953-09-29 | Ford Motor Co | Automatic choke air heater |
| FR1169790A (en) * | 1957-03-18 | 1959-01-06 | Heat exchanger tubes | |
| FR1494133A (en) * | 1966-05-16 | 1967-09-08 | Commissariat Energie Atomique | heat exchanger |
| CA925444A (en) * | 1969-09-08 | 1973-05-01 | Spiral Tubing Corporation | Double wall helically corrugated tubing unit and method of forming same |
| DE2013940A1 (en) * | 1970-03-24 | 1971-10-07 | Schmoele Metall R & G | Heat exchanger for liquid and gaseous media |
| AU510518B2 (en) * | 1976-04-08 | 1980-07-03 | Heat Transfer Pty. Ltd. | Seals for concentrically arranged tubes of heat exchangers |
| NL8203928A (en) * | 1981-11-23 | 1983-06-16 | Wieland Werke Ag | TUBE FOR TRANSMISSION OF HEAT WITH LEAKAGE INDICATION. |
| GB2137332B (en) * | 1983-03-29 | 1986-06-18 | Arrenshaw | Improvements in or relating to heat exchangers |
-
1987
- 1987-05-15 GB GB8711495A patent/GB2204945B/en not_active Expired - Fee Related
- 1987-05-22 AT AT131887A patent/AT388445B/en not_active IP Right Cessation
- 1987-05-22 NL NL8701232A patent/NL193121C/en not_active IP Right Cessation
- 1987-05-22 FR FR8707260A patent/FR2615608B1/en not_active Expired - Lifetime
- 1987-05-22 LU LU86894A patent/LU86894A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2577031A1 (en) * | 2010-06-01 | 2013-04-10 | Delphi Technologies, Inc. | Exhaust gas heat recovery heat exchanger |
| EP2577031A4 (en) * | 2010-06-01 | 2014-12-31 | Delphi Tech Inc | Exhaust gas heat recovery heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| NL8701232A (en) | 1988-12-16 |
| GB2204945A (en) | 1988-11-23 |
| AT388445B (en) | 1989-06-26 |
| FR2615608B1 (en) | 1990-08-10 |
| NL193121C (en) | 1998-11-03 |
| GB2204945B (en) | 1991-04-24 |
| GB8711495D0 (en) | 1987-06-17 |
| FR2615608A1 (en) | 1988-11-25 |
| NL193121B (en) | 1998-07-01 |
| ATA131887A (en) | 1988-11-15 |
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