FR2509022A1 - Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents - Google Patents
Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents Download PDFInfo
- Publication number
- FR2509022A1 FR2509022A1 FR8113363A FR8113363A FR2509022A1 FR 2509022 A1 FR2509022 A1 FR 2509022A1 FR 8113363 A FR8113363 A FR 8113363A FR 8113363 A FR8113363 A FR 8113363A FR 2509022 A1 FR2509022 A1 FR 2509022A1
- Authority
- FR
- France
- Prior art keywords
- air
- air flow
- heat exchanger
- fan
- close
- 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.)
- Pending
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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
- F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
- F24F1/035—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air characterised by the mounting or arrangement of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
La combinaison d'une ventilation alternante avec une récupération de l'énergie est en principe une méthode bien qualifiee pour des unités d'un immeuble. En utilisant selon cette méthode un dispositif pour chaque unité (ou groupe d'unités) on évite des canalisations complexes et on obtient une climatisation réglable individuellement. Cependant, les dispositifs connus sont en général trop encombrants pour s'adapter dans ces petits espaces et leur effet utile de la récupération est trop bas. The combination of alternating ventilation with energy recovery is in principle a well-qualified method for units in a building. Using this method a device for each unit (or group of units) avoids complex pipes and we obtain individually adjustable air conditioning. However, the known devices are generally too bulky to fit in these small spaces and their useful effect of recovery is too low.
La presente invention utilise une combinaison très compacte composée d'un ventilateur hélicoidal, plat et électriquement réversible, commandé par un programmateur, et d'un échangeur de chaleur plat, dont la dimension radiale (perpendiculaire au courant d'air provoqué par le ventilateur) est plus grande que sa dimension axiale. Une telle combinaison est convenable pour les espaces concernes. The present invention uses a very compact combination composed of a helical fan, flat and electrically reversible, controlled by a programmer, and a flat heat exchanger, whose radial dimension (perpendicular to the air flow caused by the fan) is larger than its axial dimension. Such a combination is suitable for the spaces concerned.
En cherchant a utiliser cette combinaison, on trouve que, dans le cas où le courant d'air est soufflé vers l'é- changeur par le ventilateur, ce courant est très hétérogène. In seeking to use this combination, it is found that, in the case where the air flow is blown towards the exchanger by the fan, this flow is very heterogeneous.
En quittant le ventilateur, l'air a un mouvement rotatoire et la vitesse de l'air proche de la péripherie du courant est beaucoup plus grande que la vitesse proche du centre où on peut même trouver une aspiration en sens opposé. Quand le ventilateur, après un renversement, aspire de l'air par l'e- changeur, on trouve que la vitesse de l'air est mieux repartie, mais qu'elle est, dans ce cas la, contrairement au cas précédent, plus grande vers le centre que vers la pheriphérie. Cette différence entre les deux courants d'air en sens inverse est très nuisible a la récupération de l'énergie. Leaving the fan, the air has a rotary movement and the speed of the air close to the periphery of the current is much greater than the speed near the center where one can even find a suction in opposite direction. When the fan, after a reversal, sucks in air through the exchanger, we find that the air speed is better distributed, but that it is, in this case, unlike the previous case, more larger towards the center than towards the periphery. This difference between the two air currents in opposite directions is very detrimental to energy recovery.
Dans un échangeur, ordinaire pour des courants d'air alternants composé de canaux parallèles arrangés axialement, on obtient ainsi que vers la périphérie, une beaucoup plus grande quantite d'air est soufflée -dans une direction que la quantité d'air qui est aspirée dans l'autre direction, pendant la periode suivante, tandis que c'est 1 inverse vers le centre. In an exchanger, ordinary for alternating air currents composed of parallel channels arranged axially, one thus obtains that towards the periphery, a much greater quantity of air is blown in one direction than the quantity of air which is sucked in the other direction, during the next period, while it is 1 reverse towards the center.
Cependant, pour un bon échange de chaleur, il est fondamental que la quantité d'air soufflée a travers une partie de l'échangeur soit autant que possible égale a la quantité de l'air aspiré à travers la même partie. Si on se sert d'un arrangement plus spacieux et moins plat dans la direction axiale qu'indiqué ici, et spécialement si on utilise un long canal entre le ventilateur et l'échangeur, il est possible de réduire considérablement l'effet nuisible de l'heterogenite de ces courants d'air produits par le ventilateur hélicoidal. Un tel arrangement, pourtant, devient beaucoup trop encombrant pour le but vise. However, for a good heat exchange, it is fundamental that the quantity of air blown through a part of the exchanger is as much as possible equal to the quantity of air sucked through the same part. If you use a more spacious and less flat arrangement in the axial direction than indicated here, and especially if you use a long channel between the fan and the exchanger, it is possible to considerably reduce the harmful effect of the heterogeneity of these air currents produced by the helical fan. Such an arrangement, however, becomes far too cumbersome for the intended purpose.
Selon l'invention, on evite cet inconvénient en posant entre le ventilateur et l'échangeur tout près du ventilateur une couche de matière perméable par laquelle l'air passe, soufflé ou aspiré par le ventilateur, et dans laquelle la rotation d'air est neutralisée, et en arrangeant entre cette couche et l'échangeur un espace où les différentes vitesses qui existent dans le courant d'air sont réparties et égalisées. On transforme ainsi les courants d'air très hetéroge- nes en une structure beaucoup plus homogène avec des vitesses presque égales dans les deux directions, ce qui fait que le rendement de la récupération de l'énergie est radicalement amélioré. According to the invention, this disadvantage is avoided by placing between the fan and the exchanger very close to the fan a layer of permeable material through which the air passes, blown or sucked in by the fan, and in which the air rotation is neutralized, and by arranging between this layer and the exchanger a space where the different speeds which exist in the air stream are distributed and equalized. The very heterogeneous air currents are thus transformed into a much more homogeneous structure with almost equal speeds in the two directions, which means that the efficiency of energy recovery is radically improved.
La couche antirotatoire peut être composée d'un grand nombre de petits canaux axiaux et paralleles ou d'une matiere filtrante, par exemple un filtre a air, dont les passages servent de canaux. L'espace pour égaliser les vitesses d'air peut être vide et il ne doit pas etre trop mince, la dimension axiale doit être au moins un dixieme ou préférablement deux dixièmes de la dimension radiale. Cet espace peut être totalement ou partiellement rempli de matériaux qui permettent que l'air courant se déplace aisèment de côté dans ledit courant. Ces matériaux peuvent etre composés de granules ou de petits objets d'une forme adaptée à constituer dans la couche suffisamment de cavités et des évents pour permettre les mouvements d'air mentionnés ci-dessus. The anti-rotation layer may be composed of a large number of small axial and parallel channels or of a filter material, for example an air filter, the passages of which serve as channels. The space for equalizing the air speeds can be empty and it must not be too thin, the axial dimension must be at least one tenth or preferably two tenths of the radial dimension. This space can be totally or partially filled with materials which allow the current air to move easily sideways in said current. These materials can be composed of granules or small objects of a shape adapted to constitute in the layer enough cavities and vents to allow the air movements mentioned above.
La forme peut être hélicoidale (type spirale) ou tordue. On peut aussi disposer dans cet espace des plaques perfores placées perpendiculairement à la direction principale du courant principal de l'air et espacées pour permettre les mouvements d'air de côté. Au lieu de plaques perforées, on peut utiliser des grilles ou des grillages. Les granules, les spirales, les plaques et les grillages peuvent être en aluminium, en carton ou en plastique
Par ces moyens, on peut influencer d'une manière souhaitable les mouvements d'air entre la couche antirotatoire et l'échangeur. En même temps, les matériaux utilisés fonction; nent comme des changeurs de chaleur complémentaires.The shape can be helical (spiral type) or twisted. It is also possible to have in this space perforated plates placed perpendicular to the main direction of the main air flow and spaced to allow side air movements. Instead of perforated plates, grids or grids can be used. The granules, the spirals, the plates and the gratings can be made of aluminum, cardboard or plastic
By these means, air movements between the anti-rotation layer and the exchanger can be influenced in a desirable manner. At the same time, the materials used function; like complementary heat changers.
L'échangeur de chaleur principale peut, par exemple, etre constitué de carton ondulé disposé de sorte que les ondes forment des canaux orientés axialement dans la direction genérale du courant d'air qui va passer par ces canaux dans un va-et-vient. Au lieu du carton, on peut utiliser de l'aluminium, des matieres plastiques ... On peut naturellement aussi se servir d'autres types d'echangeur de chaleur connus. The main heat exchanger can, for example, be made of corrugated cardboard arranged so that the waves form channels oriented axially in the general direction of the air flow which will pass through these channels in a back and forth. Instead of cardboard, you can use aluminum, plastics ... You can of course also use other types of known heat exchangers.
Les figures ci-jointes donnees à titre d'exemple indicatif et non limitatif permettront aisèment de comprendre l'invention. Elles représentent un mode de réalisation préféré selon l'invention. The attached figures given by way of indicative and non-limiting example will easily allow the invention to be understood. They represent a preferred embodiment according to the invention.
La figure 1 est une vue extérieure du dispositif vue de côté. La figure 2 est une vue en coupe longitudinale dudit dispositif. Figure 1 is an external view of the device seen from the side. Figure 2 is a longitudinal sectional view of said device.
Dans ces figures
1 désigne la vitre ou le mur
2 le ventilateur
3 la couche antirotatoire
4 l'espace pour égaliser les courants d'air
5 l'échangeur de chaleur
6 l'accélérateur
7 le déflecteur. In these figures
1 designates the glass or the wall
2 the fan
3 the anti-rotation layer
4 space to equalize drafts
5 the heat exchanger
6 the accelerator
7 the deflector.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8113363A FR2509022A1 (en) | 1981-07-02 | 1981-07-02 | Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8113363A FR2509022A1 (en) | 1981-07-02 | 1981-07-02 | Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2509022A1 true FR2509022A1 (en) | 1983-01-07 |
Family
ID=9260308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8113363A Pending FR2509022A1 (en) | 1981-07-02 | 1981-07-02 | Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2509022A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434819C (en) * | 2004-06-09 | 2008-11-19 | 乐金电子(天津)电器有限公司 | Ventilator |
DE102016009598A1 (en) * | 2016-08-09 | 2018-02-15 | Stiebel Eltron Gmbh & Co. Kg | Ventilation unit of building technology with a measuring unit |
EP2739913B1 (en) | 2011-08-03 | 2018-12-26 | LUNOS Lüftungstechnik GmbH für Raumluftsysteme | Recessed profile |
DE102018105902A1 (en) * | 2018-03-14 | 2019-09-19 | Vetsmarttubes Gmbh | Device for ventilating a room |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR939335A (en) * | 1942-10-19 | 1948-11-10 | Cie Belge Des Freins Westingho | Improvements to unit heaters |
US3353564A (en) * | 1963-11-01 | 1967-11-21 | American Enka Corp | Laminar flow device |
FR2184564A1 (en) * | 1972-05-19 | 1973-12-28 | Steve Jean Marc | |
DE2403471A1 (en) * | 1974-01-25 | 1975-07-31 | Lwk Luft Waerme Klimatechnik G | Radial fan ventilation appts. - has deflecting hood around fan wheel and axial guide lamellae at hood outlet |
FR2258600A1 (en) * | 1974-01-21 | 1975-08-18 | Serbol 139 Ab | |
US3964519A (en) * | 1974-11-18 | 1976-06-22 | Air Monitor Corporation | Fluid velocity equalizing apparatus |
-
1981
- 1981-07-02 FR FR8113363A patent/FR2509022A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR939335A (en) * | 1942-10-19 | 1948-11-10 | Cie Belge Des Freins Westingho | Improvements to unit heaters |
US3353564A (en) * | 1963-11-01 | 1967-11-21 | American Enka Corp | Laminar flow device |
FR2184564A1 (en) * | 1972-05-19 | 1973-12-28 | Steve Jean Marc | |
FR2258600A1 (en) * | 1974-01-21 | 1975-08-18 | Serbol 139 Ab | |
DE2403471A1 (en) * | 1974-01-25 | 1975-07-31 | Lwk Luft Waerme Klimatechnik G | Radial fan ventilation appts. - has deflecting hood around fan wheel and axial guide lamellae at hood outlet |
US3964519A (en) * | 1974-11-18 | 1976-06-22 | Air Monitor Corporation | Fluid velocity equalizing apparatus |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434819C (en) * | 2004-06-09 | 2008-11-19 | 乐金电子(天津)电器有限公司 | Ventilator |
EP2739913B1 (en) | 2011-08-03 | 2018-12-26 | LUNOS Lüftungstechnik GmbH für Raumluftsysteme | Recessed profile |
DE102016009598A1 (en) * | 2016-08-09 | 2018-02-15 | Stiebel Eltron Gmbh & Co. Kg | Ventilation unit of building technology with a measuring unit |
DE102018105902A1 (en) * | 2018-03-14 | 2019-09-19 | Vetsmarttubes Gmbh | Device for ventilating a room |
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