EP0943876B1 - Emetteur de chaud ou de froid ou pompe à chaleur à ventilateur tangentiel - Google Patents
Emetteur de chaud ou de froid ou pompe à chaleur à ventilateur tangentiel Download PDFInfo
- Publication number
- EP0943876B1 EP0943876B1 EP99400642A EP99400642A EP0943876B1 EP 0943876 B1 EP0943876 B1 EP 0943876B1 EP 99400642 A EP99400642 A EP 99400642A EP 99400642 A EP99400642 A EP 99400642A EP 0943876 B1 EP0943876 B1 EP 0943876B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- wheel
- heat pump
- air
- pump according
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
-
- 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
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
-
- 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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
-
- 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
- F24F1/0025—Cross-flow or tangential fans
-
- 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
-
- 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
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
Definitions
- This invention relates to a machine for heating or cooling the atmosphere, such than a hot or cold transmitter or a heat pump heat including a tangential fan.
- Lacrosse beak porous protrusion A group of measures is proposed in combination to achieve this result.
- One of them is to make a piece of glass porous protrusion, called lacrosse beak, which partially forms a chamber in which the wheel turns and which points to a wheel generator.
- Lacrosse beak porous has already been proposed in US-3 patent 695,775 A, but this is considered to be insufficient for the application envisaged here, where the requirements are strict.
- the fan does not have a nozzle scroll at the entrance, and the fan wheel is fitted with blades with pitch angle greater than 50 °.
- Other provisions, particularly favorable for improve flow, have been adopted in the emitter as the heat pump and are offered at incidental title.
- a transmitter according to the invention is attached to a wall and its envelope has a triangle-shaped section irregular whose longest rear side is side of the wall, the upper side, slightly tilted towards the bottom from the wall, is the shortest and the side lower, oblique, connects to the previous one by a tip 1.
- the lower side has an opening air inlet 2 veiled by a filter grid 3 and, above this entry 2 but just below tip 1, a first air outlet 4; a second air outlet 5 is arranged across the side top of the envelope, slightly above the tip 1.
- These air outlets 4 and 5 are furnished with fins 6 and 7, directed downwards and outwards for the first exit 4 and up and out for the second outlet 5.
- a heat exchanger 8 is arranged in the envelope, behind the grid 3; he consists of a network of tubes 9 of circular section which lead to two conduits 10 assigned to the supply and return of a liquid, refrigerant or circulating as the case may be.
- the conduits 10 extend side of the envelope and out of it before join an appropriate facility that is part of the building in which the transmitter is installed.
- a tray 11 is located under the tubes 9 for if necessary collect the humidity of the air which has condensed on them.
- a purge duct which can be open at will and not shown, allows you to empty it.
- the centerpiece of the aircraft is a tangential fan 12 placed in an envelope 13 internal to the outer sectional enclosure triangular.
- This internal envelope 13 includes a entrance pavilion 14 ending in front of the heat 8, an outlet volute 15 ending in front of the air outlets 4 and 5 (which converge) and a chamber 16 intermediate to the previous ones and which houses the wheel 17 of the fan 12.
- a flap 18 is articulated to the outer envelope of the transmitter and oscillates between two extreme positions where it closes one or other of the air outlets 4 and 5 while directing the air coming out of volute 15, up to which it extends towards the other air outlets 4 and 5.
- This arrangement optimizes the dissemination air in the ambient atmosphere according to its temperature: hot air tends to rise, it is the first air outlet 4 which will be opened for heat the building so that the air is first blown down before rising; the second air outlet 5 will be open when using the device as an air conditioner to blow cold air to the high before it falls.
- FIG. 2 Another view of the transmitter is constituted by FIG. 2, where we further distinguishes motor 26 from fan 12.
- the impeller 17 is possibly quite long, depending on the flow of air and the heating or cooling power requested.
- FIG. 3 shows in more detail the fan 12. Aerodynamic studies show that the air is blown out locally by taking a vortex aspect in the extent of a vortex V. This vortex V would be located in the center of the wheel 17 if it was in the center of a circular chamber but the resulting flow would then be zero. So that the fan 12 works, chamber 16 is therefore asymmetrical, and the internal envelope 13 present at particular an inward projection, which is called traditionally a butt stock 19 and which extends almost to wheel 17 where it runs towards the entrance pavilion 14: the air which accompanies the wheel 17 around it is stopped and disperses either towards exit 15, i.e.
- the mouthpiece butt 19 is porous.
- the beak of butt 19 is a piece of perforated sheet metal whose pores occupy 32% of the surface.
- a return current towards the entrance pavilion 14 is therefore tolerated through the pores, but the air flow supplied by the fan 12 is still good enough, and it is moreover possible to lengthen the butt end 19 compared to previous solutions for it to come closer to wheel 17 (at ten millimeters per example); we also have it more downstream than it is not usual, in order to increase the flow.
- blades 23 of the wheel 17 A good design, that of a prototype built, anticipates that they are at number thirty and range between diameters of 60 mm and 49.44 mm from wheel 17; their rope C (distance taken on a straight line between their ends) is 6.3 mm, their camber angle ⁇ of 72.55 ° and their setting angle ⁇ (between chord C and tangent wheel 17 taken at the inside diameter) is 53.18 °.
- the flow is even easier if the volute 15 folds towards the entrance pavilion 14, and more precisely if the lower surface 24 and 25 of the internal envelope 13 forms an angle ⁇ acute on either side of the butt 19: this angle is obtuse in existing fans. This particularity is only exploited here when part 18 directs the flow to the first air outlet 4, whose lower surface 25 delimits the duct.
- An auxiliary provision consists of place the blades 23 in a spin along the wheel 12, to prevent them from passing periodically in front the butt end 19, which would produce beats and sound peaks at these frequencies.
- Such a pale 23 twisted is illustrated in Figure 2.
- a characteristic of tangential fans 12 is to raise the air pressure more strongly than other kinds of fans, so that 8 thicker heat exchangers or longer tubes tight, and therefore more temperature variations large for the air passing through the device, are possible.
- Such a device extracts heat from a cold source and brings it to a hot source by a fluid traversing a closed circuit which makes it pass alternately by two heat exchangers located at thermal sources, and in which, in general, vaporizes and condenses respectively; a compressor and a regulator are placed respectively on the two branches of the circuit which connect the exchangers.
- a another aspect of the invention does not, however, relate to the organization of a heat pump but on the provision of ventilation means which facilitate air circulation in the room to be heated or cool through the heat exchanger correspondent: these means can be placed from the as shown in figure 4, in a fan unit 30 seen from above and comprising a section wall 31 rectangular enclosing two compartments 32 housing each a heat exchanger 33, diagonally in the compartment, and a fan 34 in a corner of the compartment; exchangers 33 form an open vee towards a suction face 35, screened, from the block fan 30 and the fans 34 are still arranged at two corners of the fan unit 30: the air flow enters block 30 from the face suction 35 in a uniform flow before fork towards the fans 34 by crossing the exchangers 33 by their smallest dimension; he leaves the fan unit 30 through openings mesh 36 which occupy part of its faces lateral; a partition 37 separating the compartments 32 ensures the symmetry of the flow.
- the fans 34 are analogous to the fans 12 of the previous embodiment and include in particular a porous butt end 38, analogous to the butt end 19 already encountered. All other improvements concerning the wheel, its arrangement in fan casing and shape of this envelope can be adopted or not. However, the requirements for acoustic discretion may be smaller for heat pumps, which have always been noisy.
- the fan unit 30 is isolated from the rest of the pump, which belongs to a compressor block 41 placed in another room, not devoted to the house, so that we don't have to hear its noise, which comes mainly from a compressor 42 attached to a motor not shown; the compressor block 41 also includes a heat exchanger 43 communicating with the cold source (if the room in which is the fan block 30 must be heated) and a regulator 44. All of these are interconnected by a circuit of conduits 45 which also passes through exchangers 33, where it branches off.
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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Description
- la figure 1 est une coupe de côté d'un émetteur de chaud et de froid conforme à l'invention,
- la figure 2 est une vue de face de ce même émetteur,
- la figure 3 illustre plus précisément son ventilateur,
- et la figure 4 est une vue d'une pompe à chaleur conforme à l'invention.
Claims (8)
- Emetteur d'air ou pompe à chaleur, comprenant un échangeur de chaleur (8, 33), un ventilateur tangentiel (12, 34) logé dans une chambre (16) précédant une volute (15) de sortie d'air, la chambre étant formée en partie par un bec de crosse poreux (19, 38) pointant vers une génératrice de roue du ventilateur, caractérisé en ce que le ventilateur est dépourvu de bec de volute (21) et en ce que la roue du ventilateur est munie de pales (23) à angle de calage (γ) supérieur à 50°.
- Emetteur d'air ou pompe à chaleur selon la revendication 1, caractérisé en ce qu'un angle (λ) dirigé vers l'amont, passant par le bout (20) du bec de crosse et le point d'enveloppe (13) du ventilateur le plus proche de la roue (17) de ventilateur d'un côté d'intrados, et ayant le centre de la roue pour sommet, est supérieur à 180°.
- Emetteur d'air ou pompe à chaleur selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le bec de crosse (19) est une tôle perforée.
- Emetteur d'air ou pompe à chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le ventilateur est logé dans une enveloppe (13) à intrados (24, 25) formant un angle aigu (β) de part et d'autre du bec de crosse (19).
- Emetteur d'air ou pompe à chaleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la roue du ventilateur est munie de pales (23) vrillées.
- Emetteur d'air selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la roue (17) a un axe de rotation horizontal, la volute (15) finit en deux conduits bifurquant et superposés, un volet (18) permet de fermer à volonté sélectivement les conduits, l'un des conduits étant ascendant et l'autre des conduits étant descendant.
- Pompe à chaleur selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le ventilateur (34) est logé dans un coin d'un bloc (30) de ventilateur rectangulaire, l'échangeur de chaleur (33) s'étend sur une diagonale du bloc, l'air entre dans le bloc par une face (35) de grand côté du rectangle donnant sur l'échangeur et sort du bloc par une face (36) de petit côté du rectangle donnant sur la volute.
- Pompe à chaleur selon la revendication 7, caractérisée en ce qu'elle comprend deux blocs de ventilateur, les échangeurs de chaleur forment un vé, les faces d'entrée d'air sont jointives et les faces de sortie d'air sont opposées.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9803369A FR2776369B1 (fr) | 1998-03-19 | 1998-03-19 | Emetteur de chaud ou de froid ou pompe a chaleur a ventilateur tangentiel |
FR9803369 | 1998-03-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0943876A1 EP0943876A1 (fr) | 1999-09-22 |
EP0943876B1 true EP0943876B1 (fr) | 2003-05-28 |
Family
ID=9524224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99400642A Expired - Lifetime EP0943876B1 (fr) | 1998-03-19 | 1999-03-16 | Emetteur de chaud ou de froid ou pompe à chaleur à ventilateur tangentiel |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0943876B1 (fr) |
AT (1) | ATE241784T1 (fr) |
DE (1) | DE69908225D1 (fr) |
FR (1) | FR2776369B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106152280A (zh) * | 2016-08-01 | 2016-11-23 | 珠海格力电器股份有限公司 | 空调装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100826028B1 (ko) * | 2006-05-20 | 2008-04-28 | 엘지전자 주식회사 | 공기 조화기 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1102092A (en) * | 1964-02-05 | 1968-02-07 | Firth Cleveland Ltd | Improvements relating to machines of the cross-flow type for inducing flow of fluid |
DE1941356C3 (de) * | 1969-08-14 | 1979-05-17 | Boehler-Zenkner Gmbh & Co Kg Stroemungstechnik, 4005 Meerbusch | Vorrichtung zum Belüften, Kühlen und Heizen des Innenraumes eines Kraftfahrzeuges |
DE1951115B2 (de) * | 1969-10-10 | 1976-10-21 | Böhler-Zenkner GmbH & Co KG Strömungstechnik, 4005 Meerbusch | Querstromgeblaese |
US4733542A (en) * | 1986-12-05 | 1988-03-29 | Enviromaster International Corporation | Cabinet for air conditioning system |
JP3653144B2 (ja) * | 1996-06-28 | 2005-05-25 | 東芝キヤリア株式会社 | 横流ファン、ファンコマ成形型及びファンコマ成形型製造方法 |
-
1998
- 1998-03-19 FR FR9803369A patent/FR2776369B1/fr not_active Expired - Fee Related
-
1999
- 1999-03-16 DE DE69908225T patent/DE69908225D1/de not_active Expired - Lifetime
- 1999-03-16 EP EP99400642A patent/EP0943876B1/fr not_active Expired - Lifetime
- 1999-03-16 AT AT99400642T patent/ATE241784T1/de not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106152280A (zh) * | 2016-08-01 | 2016-11-23 | 珠海格力电器股份有限公司 | 空调装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2776369A1 (fr) | 1999-09-24 |
FR2776369B1 (fr) | 2000-05-05 |
ATE241784T1 (de) | 2003-06-15 |
EP0943876A1 (fr) | 1999-09-22 |
DE69908225D1 (de) | 2003-07-03 |
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