FR2627265A1 - Compact fluid heat exchanger construction - has array of helical fins in cylindrical tube forming fluid passages between end inlet and outlet assemblies - Google Patents
Compact fluid heat exchanger construction - has array of helical fins in cylindrical tube forming fluid passages between end inlet and outlet assemblies Download PDFInfo
- Publication number
- FR2627265A1 FR2627265A1 FR8801854A FR8801854A FR2627265A1 FR 2627265 A1 FR2627265 A1 FR 2627265A1 FR 8801854 A FR8801854 A FR 8801854A FR 8801854 A FR8801854 A FR 8801854A FR 2627265 A1 FR2627265 A1 FR 2627265A1
- Authority
- FR
- France
- Prior art keywords
- heat exchanger
- cylindrical tube
- collectors
- array
- forming
- 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
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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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
- F28D21/0007—Water heaters
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/06—Hollow fins; fins with internal circuits
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' appareil est un échangeur thermique compact et d'un rendement élevé permettant de transmettre des calories à un fluide liquide à partir d'un fluide gazeux ou éventuellement d'un autre liquide. The device is a compact and high efficiency heat exchanger for transmitting calories to a liquid fluid from a gaseous fluid or possibly another liquid.
I1 peut dans certains cas remplacer une calandre rectangulaire telle qu'on en trouve dans les aérothermes, batteries chaudes ou batteries froides en climatisation, corps de chauffe de chauffe-eau ou de chaudière à gaz. I1 can in some cases replace a rectangular grille such as found in air heaters, hot batteries or cold batteries in air conditioning, water heater or gas boiler body.
I1 peut également servir à récupdrer les calories en provenance d'une cheminée et les transmettre à un circuit de chauffage à eau chaude. It can also be used to recover calories from a chimney and transmit them to a hot water heating circuit.
L'appareil est constitué d'une enveloppe cylindrique (1) à l'intérieur -de laquelle sont rapportés de champ un certain nombre de tubes à ailettes régulièrement espacés (2) et montant le long de la paroi du cylindre selon une hélice faisant un certain angle avec le plan de base (en principe 452). Ces tubes communiquent à leur base et à leur sommet avec deux collecteurs annulaires constituant l'aller et le retour (3) et (4) pour le fluide contenu dans ces éléments. The apparatus consists of a cylindrical casing (1) inside which are brought in the field a number of regularly spaced finned tubes (2) and rising along the wall of the cylinder according to a helix making a certain angle with the base plane (in principle 452). These tubes communicate at their base and at their top with two annular collectors constituting the outward and return (3) and (4) for the fluid contained in these elements.
Les tubes à ailettes peuvent être avantageusement remplacés par des ailettes creuses de forme similaire (2), reliées à deux collecteurs de section rectangulaire (3) et (4) sur la face intérieure desquels sont aménagées des lumières (5) au point de Jonction avec les spires, par 1' intermédiaire d'un point d'étanchéStét Cette disposition permet de réaliser la pièce par moulage, et ce, dans un matériau quelconque ayant les qualités mécaniques et thermiques requises (fonte, céramique, quartz, etc ...). C'est le cas qui est figuré par le dessin. The finned tubes can advantageously be replaced by hollow fins of similar shape (2), connected to two collectors of rectangular section (3) and (4) on the inner face of which lights (5) are arranged at the point of junction with the turns, via a sealing point Stet This arrangement makes it possible to produce the part by molding, and this, in any material having the required mechanical and thermal qualities (cast iron, ceramic, quartz, etc.) . This is the case which is illustrated by the drawing.
Cet agencement permet de disposer d'une surface d'échange importante sous un volume restreint avec une perte de charge relativement faible pour le fluide circulant entre les ailettes.This arrangement makes it possible to have a large exchange surface under a restricted volume with a relatively low pressure drop for the fluid circulating between the fins.
L'arête intérieure des éléments en spirale doit rester en retrait de l'axe du cylindre de manière à laisser un passage suffisant au fluide circulant entre ces ailettes; ces éléments agissant en déflecteurs provoquent un mouvement de tourbillon qui tend à plaquer le fluide contre la paroi et rend par là-même minimes les pertes calorifiques au voisinage de l'axe du cylindre.The inner edge of the spiral elements must remain set back from the axis of the cylinder so as to leave a sufficient passage for the fluid circulating between these fins; these elements acting as deflectors cause a vortex movement which tends to press the fluid against the wall and thereby reduces heat losses in the vicinity of the cylinder axis.
L'enveloppe cylindrique sera bien isolée de manière à maintenir la chaleur à l'intérieur ou éventuellement doublée pour permettre le stockage du fluide réchauffé entre les deux parois. The cylindrical envelope will be well insulated so as to keep the heat inside or possibly doubled to allow the storage of the heated fluid between the two walls.
Pour illustrer le fonctionnement de cet appareil, nous prendrons le cas d'un usage en corps de chauffe de chauffe-eau. Dans ce cas, l'appa- reil est monté verticalement. La chaleur est produite par des brûleurs répartis sur un cercle représentant le diamètre moyen des éléments considérés à la base du cylindre et de façon à produire une flamme sous chaque ailette. Une partie de la chaleur ainsi produite tend à monter le long des spires, créant une aspiration d'air par le bas du cylindre. L'autre partie de cette chaleur va monter verticalement par rayonnement passant ainsi d' un élément à celui qui est Juste au-dessus de lui et ainsi de suite. To illustrate the operation of this device, we will take the case of use as a water heater heater body. In this case, the device is mounted vertically. The heat is produced by burners distributed on a circle representing the average diameter of the elements considered at the base of the cylinder and so as to produce a flame under each fin. Part of the heat thus produced tends to rise along the turns, creating an air intake from the bottom of the cylinder. The other part of this heat will go up vertically by radiation thus passing from an element to that which is Just above it and so on.
L'eau circule en sens inverse,. arrivant dans l'anneau supérieur, descendant le long des spires et collectée par l'anneau inférieur.Water flows in the opposite direction. arriving in the upper ring, descending along the turns and collected by the lower ring.
La forme de l'appareil, cylindrique dans la précédente description, peut varier en fonction de l'usage demandé. I1 peut, par exemple, être conique pour s'adapter à la hotte d'une cheminée et récupérer ainsi la partie des calories qui n'est pas rayonnée dans la pièce, dans un chauffage à circuit d'eau chaude, seul ou en relève d'une chaudière. The shape of the device, cylindrical in the previous description, may vary depending on the use requested. I1 can, for example, be conical to adapt to the hood of a chimney and thus recover the part of the calories which is not radiated in the room, in a heating with hot water circuit, alone or in relief of a boiler.
Pour certaines applications, on utilisera un cylindre de faible hauteur et d'un grand diamètre pour offrir une large prise à l'air. For certain applications, a cylinder of small height and a large diameter will be used to provide a large air intake.
Dans ce cas, les ailettes très courtes peuvent alors être droites et disposées avec un certain angle, comme dans une hdlice d'éolienne. In this case, the very short fins can then be straight and arranged at a certain angle, as in a wind turbine unit.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8801854A FR2627265B1 (en) | 1988-02-17 | 1988-02-17 | COMPACT HEAT EXCHANGER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8801854A FR2627265B1 (en) | 1988-02-17 | 1988-02-17 | COMPACT HEAT EXCHANGER |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2627265A1 true FR2627265A1 (en) | 1989-08-18 |
FR2627265B1 FR2627265B1 (en) | 1990-04-27 |
Family
ID=9363325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8801854A Expired - Lifetime FR2627265B1 (en) | 1988-02-17 | 1988-02-17 | COMPACT HEAT EXCHANGER |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2627265B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH699393A1 (en) * | 2008-08-20 | 2010-02-26 | Eugen Gwerder | Heat exchanger for flue gas duct i.e. chimney, of heater in building, has flue gas distributor formed for circulation of heat-exchanging medium to which heat of channelized flue gas is discharged during operation of heat exchanger |
WO2023093287A1 (en) * | 2021-11-24 | 2023-06-01 | 广东美的白色家电技术创新中心有限公司 | Heat exchanger, heat pump system and dishwasher |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR345941A (en) * | 1903-09-01 | 1904-12-22 | Oscar Gerhardt | Heating or cooling tube |
CH178471A (en) * | 1934-11-16 | 1935-07-31 | Cipag S A Compagnie Ind Pour L | Process for indirectly heating the contents of a boiler, and installation for implementing this process. |
FR983300A (en) * | 1948-03-20 | 1951-06-21 | heat exchanger | |
GB2025599A (en) * | 1978-05-04 | 1980-01-23 | Long P W | Waste-heat recovery method and apparatus |
US4407237A (en) * | 1981-02-18 | 1983-10-04 | Applied Engineering Co., Inc. | Economizer with soot blower |
EP0230982A2 (en) * | 1986-01-27 | 1987-08-05 | Tüzeléstechnikai Kutato és Fejlesztö Vállalat | Cylindrical heat exchanger manufactured from prefabricated components, in particular a chimney recuperator |
-
1988
- 1988-02-17 FR FR8801854A patent/FR2627265B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR345941A (en) * | 1903-09-01 | 1904-12-22 | Oscar Gerhardt | Heating or cooling tube |
CH178471A (en) * | 1934-11-16 | 1935-07-31 | Cipag S A Compagnie Ind Pour L | Process for indirectly heating the contents of a boiler, and installation for implementing this process. |
FR983300A (en) * | 1948-03-20 | 1951-06-21 | heat exchanger | |
GB2025599A (en) * | 1978-05-04 | 1980-01-23 | Long P W | Waste-heat recovery method and apparatus |
US4407237A (en) * | 1981-02-18 | 1983-10-04 | Applied Engineering Co., Inc. | Economizer with soot blower |
EP0230982A2 (en) * | 1986-01-27 | 1987-08-05 | Tüzeléstechnikai Kutato és Fejlesztö Vállalat | Cylindrical heat exchanger manufactured from prefabricated components, in particular a chimney recuperator |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH699393A1 (en) * | 2008-08-20 | 2010-02-26 | Eugen Gwerder | Heat exchanger for flue gas duct i.e. chimney, of heater in building, has flue gas distributor formed for circulation of heat-exchanging medium to which heat of channelized flue gas is discharged during operation of heat exchanger |
WO2023093287A1 (en) * | 2021-11-24 | 2023-06-01 | 广东美的白色家电技术创新中心有限公司 | Heat exchanger, heat pump system and dishwasher |
Also Published As
Publication number | Publication date |
---|---|
FR2627265B1 (en) | 1990-04-27 |
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ST | Notification of lapse |