FR2774747A1 - Warm or cool air blower - Google Patents
Warm or cool air blower Download PDFInfo
- Publication number
- FR2774747A1 FR2774747A1 FR9801536A FR9801536A FR2774747A1 FR 2774747 A1 FR2774747 A1 FR 2774747A1 FR 9801536 A FR9801536 A FR 9801536A FR 9801536 A FR9801536 A FR 9801536A FR 2774747 A1 FR2774747 A1 FR 2774747A1
- Authority
- FR
- France
- Prior art keywords
- heat exchanger
- fan
- air
- emitter
- front face
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0097—Indoor units, e.g. fan coil units characterised by heating arrangements using thermoelectric or thermomagnetic means, e.g. Peltier elements
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
ÉMETTEUR DE CHAUD ET DE FROID À REJET D'AIR PAR TROIS
FACES LATÉRALES
DESCRIPTION
L'invention exposée ici concerne un émetteur à rejet d'air par trois faces latérales, l'entrée d'air s'effectuant par la face frontale.THREE AIR RELEASE HOT AND COLD EMITTER
SIDE FACES
DESCRIPTION
The invention presented here relates to an air rejection transmitter by three lateral faces, the air intake being effected by the front face.
Les émetteurs destinés au chauffage ou au refroidissement de l'atmosphère d'une pièce d'habitation ou de bureau doivent satisfaire à diverses exigences difficiles à concilier. Leur débit d'air doit être suffisant mais leur encombrement réduit, de même que le bruit qu'ils font. I1 est ainsi fréquent d'utiliser des ventilateurs tangentiels dans des dispositifs de climatisation à cause de leur débit important, mais ces machines sont bruyantes. I1 existe aussi des dispositifs où le tirage naturel de l'air est exploité : l'émetteur consiste en une cheminée verticale que l'air parcourt sans l'action d'aucun organe mécanique grâce à sa densité différente de celle de l'air ambiant, selon la variation de température qui lui a été imposée dans la cheminée, mais la cheminée doit être d'assez grande section et le débit n'est pas très élevé. The transmitters intended for heating or cooling the atmosphere of a residential or office room must meet various requirements which are difficult to reconcile. Their air flow must be sufficient but their size reduced, as well as the noise they make. It is thus common to use tangential fans in air conditioning devices because of their high flow rate, but these machines are noisy. I1 also exist devices where the natural draft of the air is exploited: the emitter consists of a vertical chimney which the air traverses without the action of any mechanical organ thanks to its density different from that of the ambient air , according to the variation of temperature which was imposed to him in the chimney, but the chimney must be of rather large section and the flow is not very high.
L'invention représente un compromis satisfaisant entre ces diverses exigences. Sous sa rorme la plus générale, on peut la définir comme un émetteur comprenant un échangeur de chaleur à une face frontale et couvrant un ventilateur centrifuge à réaction dont l'axe de rotation est dirigé vers la ace frontale, et qui est entouré par irons faces de côté par lesquelles l'air sort de l'émetteur (en général, deux faces latérales et une face de sommet). The invention represents a satisfactory compromise between these various requirements. In its most general form, it can be defined as an emitter comprising a heat exchanger with a front face and covering a centrifugal jet fan whose axis of rotation is directed towards the front ace, and which is surrounded by irons faces from the side by which the air leaves the emitter (in general, two side faces and one top face).
Les ventilateurs centrifuges à réaction ont pour propriété d'aspirer l'air en direction de l'axe de rotation de leur roue et de le rejeter en le dispersant tout autour de la roue, perpendiculairement à l'axe de rotation. Cet écoulement est facile à distinguer de celui des ventilateurs tangentiels, qui demeure dans un plan perpendiculaire à l'axe de rotation de la roue et reste uniforme, sans se disperser en passant dans la volute de sortie. Un ventilateur centrifuge à réaction a donc l'avantage de rejeter un panache d'air à grand angle d'ouverture, ce qui conduit à une homogénéisation plus facile de la température ambiante. Son encombrement est modéré en raison de l'omission de la volute et de la disposition favorable des organes du convecteur qu'il autorise. Enfin, s'il est loin d'être silencieux, il l'est plus qu'un ventilateur tangentiel, et son bruit est amorti dans l'émetteur proposé par d'autres organes qui le cachent. Centrifugal jet fans have the property of sucking air in the direction of the axis of rotation of their wheel and of rejecting it by dispersing it all around the wheel, perpendicular to the axis of rotation. This flow is easy to distinguish from that of the tangential fans, which remains in a plane perpendicular to the axis of rotation of the wheel and remains uniform, without dispersing when passing through the outlet volute. A centrifugal jet fan therefore has the advantage of rejecting an air plume with a wide opening angle, which leads to easier homogenization of the ambient temperature. Its size is moderate due to the omission of the volute and the favorable arrangement of the convector organs which it authorizes. Finally, if it is far from being silent, it is more than a tangential fan, and its noise is damped in the transmitter proposed by other organs which hide it.
Ces caractéristiques, ainsi que d'autres, seront décrites plus en détail à l'aide des figures suivantes qui représentent une réalisation préférée de l'invention
o la figure 1 est une coupe verticale de
l'émetteur,
la figure 2 une coupe horizontale,
et la figure 3 est une vue de côté du capotage
couvrant l'émetteur.These characteristics, as well as others, will be described in more detail with the aid of the following figures which represent a preferred embodiment of the invention.
o Figure 1 is a vertical section of
the transmitter,
FIG. 2 a horizontal section,
and Figure 3 is a side view of the rollover
covering the transmitter.
L'appareil comprend donc un échangeur de chaleur 1 disposé dans une enveloppe 2 et composé d'un réseau de tubes parallèles 3 disposés verticalement, et raccordés à deux conduits G qui s'éloignent de l'échangeur 1 vers le bas et vers l'arrière, jusqu'à se raccorder à un réseau d'alimentation en liquide, de refroidissement ou de chauffage selon le cas, qui se prolonge derrière un mur auquel l'émetteur est accroché par des pitons 5. L'enveloppe 2 couvre les conduits 4 par un bord fuyant 6 terminé en bas par un bac à condensats 7 qui recueille les produits de condensation de l'humidité de l'air sur l'échangeur de chaleur 4 le cas échéant. Un conduit de purge 8 permet de faire la vidange de ce bac 7 à volonté. The apparatus therefore comprises a heat exchanger 1 arranged in an envelope 2 and composed of a network of parallel tubes 3 arranged vertically, and connected to two conduits G which move away from the exchanger 1 downwards and towards the rear, until it is connected to a liquid supply, cooling or heating network as the case may be, which extends behind a wall to which the emitter is hung by studs 5. The casing 2 covers the conduits 4 by a leaky edge 6 terminated at the bottom by a condensate pan 7 which collects the condensation products of the air humidity on the heat exchanger 4 if necessary. A purge duct 8 makes it possible to empty this tank 7 at will.
L'échangeur de chaleur 1, disposé à la face frontale de l'appareil, cache un ventilateur centrifuge à réaction 9 placé derrière lui, contre le mur. Un ventilateur centrifuge à réaction comprend un moteur 10 et un moyeu 11 assez large et porteur d'aubes 12 placées sur lui et disposées de façon à envoyer autour d'elles et du ventilateur 9 l'air qui arrive devant le moyeu 11. L'air aspiré s'écoule donc vers le ventilateur 9 en direction de l'axe de rotation du moyeu 11 puis s'éloigne du ventilateur 9 dans toutes les directions perpendiculaires à l'axe de rotation 11. The heat exchanger 1, placed on the front face of the device, hides a centrifugal jet fan 9 placed behind it, against the wall. A centrifugal jet fan comprises a motor 10 and a fairly large hub 11 carrying blades 12 placed on it and arranged so as to send around them and the fan 9 the air which arrives in front of the hub 11. The sucked air therefore flows towards the fan 9 in the direction of the axis of rotation of the hub 11 and then moves away from the fan 9 in all directions perpendicular to the axis of rotation 11.
Comme le moyeu 11 est dirigé vers l'avant, l'air est aspiré en passant par l'échangeur de chaleur 1.As the hub 11 is directed towards the front, the air is sucked in through the heat exchanger 1.
L'enveloppe 2 comprend un convergent 13 derrière l'échangeur de chaleur 4, dont l'embouchure 14 englobe l'échangeur de chaleur 1 et qui s'amincit en un orifice 15 à l'arrière qui est engagé dans l'ouverture 16 d'un couvercle 17 du ventilateur 9. Le couvercle 17 est joint à un déflecteur 18 incurvé situé derrière lui et avec lequel il forme une chambre de guidage de l'aIr, qui s'en échappe par une ouverture circulaire 19 intermédiaire au couvercle et au déflecteur et qui s'étend tout autour du ventilateur 9 ; cette chambre contient le moyen 11.The casing 2 comprises a convergent 13 behind the heat exchanger 4, the mouth 14 of which includes the heat exchanger 1 and which tapers into an orifice 15 at the rear which is engaged in the opening 16 d 'a cover 17 of the fan 9. The cover 17 is joined to a curved deflector 18 situated behind it and with which it forms an air guide chamber, which escapes therefrom through a circular opening 19 intermediate to the cover and to the deflector and which extends all around the fan 9; this room contains the means 11.
L'air est alors libre de quitter l'émetteur. Il le fait par trois faces de côté, sur les flancs et au sommet, en franchissant un capotage 20 illustré à la figure 3 qui donne une apparence agréable à l'appareil : le capotage 20 est composé en général de surfaces courbes, dont une face avant 21 porteuse d'une grille 22 qui masque l'échangeur de chaleur 1 et dont la partie inférieure fuit vers l'arrière pour suivre le bord 6. Les faces latérales 23 et la face de sommet 24 du capotage 20 sont essentiellement composées d'ailettes 25 arrondies dirigées obliquement vers l'extérieur et vers l'avant et qui délimitent entre elles des fentes ou ouïes 26 continues sur les faces 23 et 24 par lesquelles l'air sort de l'émetteur et se disperse dans l'atmosphère. The air is then free to leave the transmitter. It does this by three sides, on the sides and at the top, by crossing a cowling 20 illustrated in FIG. 3 which gives a pleasant appearance to the device: the cowling 20 is generally composed of curved surfaces, one side of which front 21 carrying a grid 22 which masks the heat exchanger 1 and the lower part of which leaks backwards to follow the edge 6. The side faces 23 and the top face 24 of the cover 20 are essentially composed of 25 rounded fins obliquely directed outward and forward and which delimit between them slots or openings 26 continuous on the faces 23 and 24 by which the air leaves the emitter and disperses in the atmosphere.
Le ventilateur centrifuge à réaction 9 a l'avantage d'aspirer un débit important d'air, et sa puissance permet de ne pas craindre les pertes de charge produites à travers l'échangeur de chaleur 1, le convergent 13, la chambre de guidage et le capotage 20, et qui sont assez importantes à cause des variations de direction de l'écoulement et des variations de section rencontrées. Cet air abondant est cependant facilement évacué grâce à l'importance de la superficie de sortie. The centrifugal jet fan 9 has the advantage of sucking in a large flow of air, and its power makes it possible not to fear the pressure drops produced through the heat exchanger 1, the convergent 13, the guide chamber. and the cowling 20, and which are quite significant because of the variations in the direction of the flow and the variations in section encountered. This abundant air is however easily evacuated thanks to the size of the outlet area.
Le bruit du ventilateur 9 est amoindri par les pièces qui le couvrent, et surtout l'échangeur de chaleur 1 et ie capotage 20 à l'avant ; il est d'ailleurs prévu qu'on le fera fonctionner à une vitesse inférieure à sa vitesse normale de fonctionnement au moyen d'une alimentation plus basse que prévu, ce qui réduit encore
Je bruit tout en conservant un débit d'air suffisant. The noise of the fan 9 is reduced by the parts which cover it, and especially the heat exchanger 1 and the cowling 20 at the front; it is moreover provided that it will be operated at a speed lower than its normal operating speed by means of a supply lower than expected, which further reduces
I make noise while maintaining sufficient air flow.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9801536A FR2774747B1 (en) | 1998-02-10 | 1998-02-10 | THREE SIDE SIDE AIR HOT AND COLD EMITTER |
EP99400422A EP1031798A1 (en) | 1998-02-10 | 1999-02-22 | Air conditioning unit with discharge of air on three sides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9801536A FR2774747B1 (en) | 1998-02-10 | 1998-02-10 | THREE SIDE SIDE AIR HOT AND COLD EMITTER |
EP99400422A EP1031798A1 (en) | 1998-02-10 | 1999-02-22 | Air conditioning unit with discharge of air on three sides |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2774747A1 true FR2774747A1 (en) | 1999-08-13 |
FR2774747B1 FR2774747B1 (en) | 2000-03-03 |
Family
ID=26153641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9801536A Expired - Fee Related FR2774747B1 (en) | 1998-02-10 | 1998-02-10 | THREE SIDE SIDE AIR HOT AND COLD EMITTER |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1031798A1 (en) |
FR (1) | FR2774747B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107747763A (en) * | 2017-09-25 | 2018-03-02 | 青岛海尔空调器有限总公司 | Indoor apparatus of air conditioner |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1444260A (en) * | 1965-05-21 | 1966-07-01 | Forced air convector for domestic central heating with hot water | |
DE1295168B (en) * | 1964-01-09 | 1969-05-14 | Eugen Laible Kg Badeapp Fabrik | Cold and warm air convector |
GB2103774A (en) * | 1981-08-11 | 1983-02-23 | Seeley F F Nominees | An evaporative type cooler case construction |
EP0442028A1 (en) * | 1990-02-06 | 1991-08-21 | Delchi/Carrier S.P.A. | Dual installation for an air conditioning unit |
WO1994008144A1 (en) * | 1992-10-01 | 1994-04-14 | ABB Fläkt Aktiebolag | Inlet bell for centrifugal fans |
DE4424881A1 (en) * | 1993-02-26 | 1996-01-18 | Rahmer & Jansen Gmbh | Cooler for liq. and gaseous media for stationary and mobile hydraulic systems |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3137042B2 (en) * | 1997-08-08 | 2001-02-19 | ダイキン工業株式会社 | Airflow control method and airflow control device for indoor unit of air conditioner |
-
1998
- 1998-02-10 FR FR9801536A patent/FR2774747B1/en not_active Expired - Fee Related
-
1999
- 1999-02-22 EP EP99400422A patent/EP1031798A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1295168B (en) * | 1964-01-09 | 1969-05-14 | Eugen Laible Kg Badeapp Fabrik | Cold and warm air convector |
FR1444260A (en) * | 1965-05-21 | 1966-07-01 | Forced air convector for domestic central heating with hot water | |
GB2103774A (en) * | 1981-08-11 | 1983-02-23 | Seeley F F Nominees | An evaporative type cooler case construction |
EP0442028A1 (en) * | 1990-02-06 | 1991-08-21 | Delchi/Carrier S.P.A. | Dual installation for an air conditioning unit |
WO1994008144A1 (en) * | 1992-10-01 | 1994-04-14 | ABB Fläkt Aktiebolag | Inlet bell for centrifugal fans |
DE4424881A1 (en) * | 1993-02-26 | 1996-01-18 | Rahmer & Jansen Gmbh | Cooler for liq. and gaseous media for stationary and mobile hydraulic systems |
Also Published As
Publication number | Publication date |
---|---|
EP1031798A1 (en) | 2000-08-30 |
FR2774747B1 (en) | 2000-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20151030 |