Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
  • F24F13/02—Ducting arrangements
  • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
• • 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
  • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling

Definitions

• the invention relates to an air conditioning device of a room that can operate in a closed circuit. More specifically, the invention relates to an air conditioning device such that treated air is diffused uniformly in an air-conditioned volume of the room provided with said device.
• Treated air means air whose temperature has been modified, that is to say increased or decreased, with respect to the temperature of the untreated air, and / or the air which has been treated from a bacteriological, odorant or other point of view.
• Per room means a room delimited by at least three vertical walls, or walls, a ceiling and a floor, said room being able to communicate with the outside by means of one or more doors and possibly by means of one or more windows .
• a room air conditioning device an air conditioner housing secured to a vertical wall of said room. Air to be treated by the air conditioner is drawn through suction ports of the air conditioner housing into a volume of the room. The air, once treated, is exhaled by blow holes of the air conditioner box in the total volume of the room. Thus, the air contained in the volume of the room is treated continuously.
• the suction holes on the air conditioner housing are located at the top of the housing, while the blow holes are located at the bottom of the housing of said air conditioner.
• Upper part means the part located towards the ceiling of the room and the lower part, the part located towards the ground.
• the case of the air conditioner is fixed in height on the wall, so that the blowing holes are located at the head height of the users of the local, or about 1.60 meters from the ground, plus or minus 1 meter.
• the suction holes are located about 2 meters above the ground, plus or minus 1 meter.
• Such an air conditioning device poses several problems. Indeed, because of the position of the air conditioner housing and the orientation of the blowing holes, the air is exhaled by the blowing ports unidirectionally, causing a cold shower, or a hot shower near the housing of air conditioner. Moreover, because of this exhalation unidirectional treated air is not distributed evenly throughout the volume of the room. The treated air is located mainly near the air conditioner box. In addition, the blow holes and the suction holes are close to each other on the housing. Thus, it may happen that the treated air exhaled blowing orifices is immediately sucked by the suction orifices to be treated again. The air conditioning of the premises is almost nil.
• an air conditioner housing located outside the room to be air conditioned.
• the room is equipped with a false ceiling, so as to provide an intermediate volume between the ceiling and the false ceiling and an air-conditioned volume between the false ceiling and the ground.
• the air to be treated is taken by the air conditioner box outside the room and is exhaled, once treated, in the intermediate volume of the room.
• Spacers arranged between an outer contour of the false ceiling and the vertical walls of the room, provide spaces for the treated air to diffuse from the intermediate volume to the volume air-conditioned by radiating along the vertical walls.
• the establishment of such an air conditioning device is complex. Indeed, the air conditioner housing being located outside the room, it is necessary to provide at least one communication port in a wall of the room, in order to get blow holes of the air conditioner housing in the intermediate volume.
• the air conditioner does not allow optimum air conditioning of the room. For example, when the air conditioner is used to reduce a room temperature, the suction orifices take hot air outside the room, then the blowing holes exhale air previously cooled. However, the air-conditioned volume of the room contains hot air. Thus, the hot air of the room will be mixed with cold air from the air conditioner. Instead of cooling the hot air contained in the conditioned volume of the room, such an air conditioning device provides external cold air which is mixed with the hot air contained in the conditioned volume of the room.
• an air conditioning device in a closed circuit of a room does not have the disadvantages of the state of the art.
• the room to be air conditioned an air conditioning unit, attached to a wall of the room or placed on the ground, and a false ceiling.
• the air conditioner housing is disposed with respect to a wall such that a blower portion of the air conditioner housing exhales treated air into an intermediate space between the ceiling and a false ceiling.
• An aspirating portion of the air conditioner housing is located in the conditioned volume, ie under the blower portion. The air to be treated by the air conditioner box can be taken from the air-conditioned volume.
• the air contained in the intermediate volume is distributed in said intermediate volume, before diffusing uniformly throughout the air-conditioned volume of the room, by diffusion means.
• the air conditioner casing although ejecting a unidirectional jet of treated air, does not cause hot or cold shower on the users of the room.
• the air to be treated by the air conditioner housing is taken from the conditioned volume of the room, cooling, heating or other, the air contained in the room is fast, since it can be do at constant volume, that is to say without outside air supply.
• the subject of the invention is therefore an air conditioning device for a room comprising
• a false ceiling arranged so as to provide an intermediate volume between a ceiling and the false ceiling, and an air-conditioned volume between the false ceiling and a floor of the premises,
• an air conditioner housing located in a total volume of the room, said housing comprising suction orifices drawing air in the conditioned volume of the room and blowing orifices exhaling air treated in the intermediate volume, and
• the air conditioning device according to the invention can therefore operate in a closed circuit.
• Total volume means a volume of the room between the vertical walls, the floor and the ceiling of said room.
• a thickness of the vertical walls belongs to the total volume.
• the thickness of the vertical walls means the dimensions of said walls parallel to the ceiling.
• the blowing holes are located at the top of the air conditioner housing, the suction ports being located at the lower part of the housing of said air conditioner.
• the air conditioning device comprises a flue pipe located at the location of an upper part of the air conditioner housing, the blowing ports being formed on said flue.
• the air conditioner box is located in a wall thickness of the room.
• the diffusion means comprise spaces disposed on a periphery of the room between the vertical walls of said room and the outer contour of the false ceiling. - The treated air exhaled by the blowing holes is cooled air.
• the air conditioner housing is located in the intermediate volume, a lower face of the housing being provided with suction orifices and the housing having blowing ports opening into the conditioned volume.
• the underside of the housing is provided with a suction grille, and at least one blow slot, each blow slot can be individually clogged at least partially by a movable flap.
• At least one blowing slot is irreversibly blocked by a flap.
• An upper face of the housing is provided with at least one blowing orifice.
• At least one lateral face of the housing is provided with at least one blowing orifice
• the air conditioner housing is located substantially equidistant from the vertical walls of the room.
• the air conditioning device comprises a suspension device of the air conditioner box on the ceiling of the room.
• the air conditioner box is flush with the false ceiling.
• the false ceiling has an opening wider than the size of the air conditioner housing.
• the invention also relates to a method of air conditioning a room provided with an air conditioner housing, characterized in that it comprises the steps of: - placing a false ceiling in the room, so as to provide an intermediate volume between the false ceiling and a ceiling of the room and an air-conditioned volume between the false ceiling and a floor,
• the air conditioner housing can be located on the ground or hung in height on a wall. In some cases it may be necessary to use a flue in addition to the air conditioner box.
• the flue pipe is arranged between the air conditioner box and the ceiling, so as to bring the treated air from the top of the air conditioner box to the intermediate volume.
• the air conditioning device of the invention can make it possible to implement the air conditioning method of the invention.
• FIG. 1a to 1c Sectional views in a vertical plane of a room provided with an air conditioning device according to embodiments of the invention
• FIG. 1 A sectional view, from above, in a horizontal plane of the local of Figure 1;
• FIG. 3 A schematic representation of an air conditioner case according to an exemplary embodiment of the air conditioning device of the invention.
• FIGs 1a, 1b and 1c a local 1 with vertical walls 2, or walls, (two vertical walls are visible in Figures 1a, 1b and 1c), a floor 3 and a ceiling 4.
• a false ceiling 8 is arranged parallel to the ceiling 4 so that an intermediate volume Vi is formed between the false ceiling 8 and the ceiling 4.
• An air-conditioned volume Vc is formed between the false ceiling 8 and the floor 3 of the room 1.
• a total volume Vt of the room comprises the intermediate volume Vi and the conditioned volume Vc.
• the false ceiling 8 is fixed to the walls 2 by fixing means.
• the fixing means can also serve as spacers to provide spaces 1 1 between the walls 2 and the false ceiling 8.
• an air conditioner housing 5 is secured to a vertical wall 2 of said room 1, by any means.
• the air conditioner box 5 is fixed to the wall 2 by screws, rivets or other removable hooking means. It is also possible to irreversibly attach the air conditioner housing 5 to the wall 2.
• the air conditioner housing can be fixed to the ceiling.
• a lower part 6 of the air conditioning unit 5, directed towards the ground 3, is provided with suction orifices 7, through which untreated air located in the conditioned volume Vc is brought inside the air conditioner housing 5.
• An upper part 9 of the air conditioning unit 5, directed towards the ceiling 4, has blowing orifices 10 through which the treated air will be exhaled out of the air conditioner box 5.
• the upper part 9 of the air conditioner box 5 is housed in the intermediate volume Vi, so that the blowing ports 10 open into the intermediate volume Vi.
• the air conditioner box 5 is fixed at a high height on the wall 2, so that the upper part 9 of said housing 5 is located 2.5 meters from the ground 3, facing the vloume Vi, more or less 1 meter, according to the ceiling height of the room.
• it can be provided that the upper part 9 is located in the conditioned volume Vc of the room 1, the blowing orifices 10 being directed upwardly so that an air jet exiting through the orifices blowing 10 arrives in the intermediate volume Vi.
• the room 1 is provided with an air conditioner housing 20 located on the floor 3.
• the air conditioner housing 20 can be secured to the ground 3 by any medium, or simply be placed on said floor 3.
• a lower portion 21 of the air conditioner housing 20 is provided with suction ports 22 through which the air to be treated enters the air conditioner housing 20.
• Primary blow holes 23 are located on an upper portion 24 of the air conditioner housing 20, so that the treated air is exhaled out of the air conditioner housing 20, in a flue 25.
• the flue 25 is integral, at one end, with the upper end 24 of the air conditioner housing 20.
• the junction between the flue 25 and the air conditioner housing 20 may be sealed, so that the treated air can not escape to the air conditioner housing 20. location of the junction towards the air-conditioned volume Vc.
• a body of the flue 25 runs along a wall 2 of the room 1, so that a second end 27 of said flue 25 is located in the intermediate volume Vi.
• the flue 25 may be secured by any means to the wall 2.
• the flue 25 may be hermetic between the two ends, so that the treated air flowing in the flue 25 does not can escape into the conditioned volume Vc.
• the second end 27 of the flue 25, or upper part, is provided with secondary blowing orifices 26 through which the treated air is exhaled in the intermediate volume Vi.
• the air conditioner box 20 is not at ground level 3, but secured to the wall 2, at a height insufficient for the upper part 23 of said air conditioner housing 20 to be located in the intermediate volume Vi .
• Dimensions of the flue 25 depend on the dimensions of the air conditioner housing 20 and a distance between the top 24 of the air conditioner housing 20 and the false ceiling 8.
• the air conditioning device is formed by an air conditioner housing 20 located in the intermediate volume Vi, a lower face 21 of the housing 20 being provided with the orifices 22 suction.
• the face 21 opens into the conditioned volume Vc.
• the lower face 21 of the housing 20, in the case where a commercial air conditioner is used, is provided with a suction grille 22 and at least one blowing slot.
• each blow slot can be individually clogged at least partially by a movable flap. In this case, the blowing windows are obstructed.
• the air conditioner can not blow anymore.
• holes 23 or 24 are otherwise made in a lateral wall 25 or greater 26 of the housing 20. These holes 23 and 24 open into the intermediate volume Vi.
• the false ceiling is a suspended false ceiling (in a sheet stretched on the walls of the room)
• the casing 20 is suspended from the ceiling by a support 29 adjustable in height so that the suction grille 22 is flush with the underside. 27 of the false ceiling 8.
• the suspension device 29 also allows an offset adjustment in the plane of the false ceiling so that the position of the grid corresponds more exactly to an opening in the false ceiling.
• the housing can be supported by the false ceiling, especially if it is of the type supported by dies.
• the air conditioner is a commercial air conditioner
• the blowing slots of the face 21 are obstructed in the invention irreversibly, at least partially, for example by a flap blocked in the closed position.
• the air conditioner housing already has holes 23 and 24, it is not necessary to make them. Otherwise, this result is easily obtained by drilling the housing 20 in places, for example using a hole saw, if necessary by having previously removed before reassembly on the air conditioner, and before mounting the air conditioner, for example flush with its underside 21 with the underside 27 of the false ceiling.
• the holes 23 and 24 are made where they have a certain efficiency, where they open without a mask in the volume Vi. With such a configuration, the air is sucked by the pin 22 and is discharged through the holes 23 and 24.
• the casing 20 In order to balance the diffusion distribution of conditioned air by the different lateral slots 1 1, it is possible to move the casing 20 in a direction 28 so that the casing 20 of the air conditioner is located substantially equidistant from the vertical walls of the room 1. By acting in this way, it is possible to regulate in another way, with blades 14 obstructing the spaces 1 1, the diffusion of heated or cooled air.
• the false ceiling is of prefabricated type with standardized plates, typically 600mm by 600mm, the size of the case will also be standardized, also 600mm by 600mm size, to fit well in a free space between two false ceiling brackets.
• the false ceiling has an opening wider than the size of the air conditioner housing.
• an air conditioner box 30 is contained in a thickness E of a wall 2 of the room 1.
• the wall 2 is thus at least partially hollow, so as to provide an internal volume able to receive the air conditioner box. 30.
• Suction orifices 31 are formed on a lower part 32 of the air conditioner housing 30. The suction orifices open into the conditioned volume Vc, so that said suction orifices 31 can take air to be treated in the conditioned volume Vc.
• An upper portion 34 of the air conditioner box 30 has primary blow-off orifices 33 through which the treated air is exhaled in the internal volume of the hollow wall 2 towards the ceiling 4. The treated air passes through the internal volume of the hollow wall 2, which thus serves as a flue 36.
• the hollow wall 2 is provided at the intermediate volume Vi with secondary blowing holes 35 allowing the treated air to escape into the volume. intermediate Vi.
• the treated air exiting through the blowing ports 10, 23, 24, 27 or 35 diffuses at first into the intermediate volume Vi, then escapes into the conditioned volume Vc, that is to say say towards the ground 3 by means of diffusions 11, 14.
• the diffusion means 1 1, 14 comprise spacers 14 disposed on a periphery of the false ceiling 8 or walls 2, between said false ceiling 8 and the said walls 2.
• the spacers 14 make it possible to provide spaces 1 1 between the false ceiling 8 and the walls 2, through which the treated air can diffuse in the conditioned volume Vc.
• the treated air diffuses along the walls 2, to then radiate inside the conditioned volume Vc of the room 1.
• the spacers 14 can be evenly distributed over the entire outer contour 12 of the false ceiling 8, in order to maintain spaces 1 1 between the false ceiling 8 and the walls 2 over the entire periphery 13 of the room 1.
• a false ceiling 8 provided over its entire surface with a plurality of orifices permitting communication between the intermediate volume Vi and the conditioned volume Vc.
• the orifices form the diffusion means through which the treated air will diffuse into the conditioned volume Vc of the room 1.
• the treated air is distributed over the entire area of the room 1, and not at a single location, which allows to uniformly air conditioning the entire air-conditioned volume Vc of said room 1.
• the treated air is distributed over the entire surface of the false ceiling 8.
• the outer contour 12 of the false ceiling 8 follows the perimeter 13 of the room 1.
• the treated air can spread over the entire perimeter 13 of the room 1, along walls 2, before radiating throughout the air-conditioned volume Vc of the local 1.
• a door 16 can enter and / or exit the room 1. Untreated air can also enter the conditioned volume Vc by the door 16 (or by open windows). Thus, all the air contained in the volume of room 1 can be renewed. Once the door 16 (and any windows) closed, the air contained in the conditioned volume Vc of the room 1 is the air that is sucked by the air conditioner housing 5 to provide the treated air to the conditioned volume Vc. It is therefore possible to operate the air conditioner unit 5 with a constant total air volume Vt, which guarantees rapid air conditioning of the room 1. The air contained in the conditioned volume Vc of the room 1 is continuously treated. In the example as illustrated in the figures, the upper part 9 of the air conditioner box 5 or the flue 25 is housed in the intermediate volume Vi.
• the outer contour 12 of the false ceiling 8 follows an outer contour 17 of the air conditioner housing 5 or the flue pipe 25.
• all of the treated air exhaled by the blowing holes 10 of the air conditioner housing 5 or by the blow holes 26, 33 of the flue 25, opens into the intermediate volume Vi.
• the blowing holes 10 are remote from the outer contour 12 of the false ceiling 8
• this fraction of treated air is low, since the treated air is exhaled with an output speed such that the treated air is projected out of the air conditioner housing.
• the false ceiling 8 with shutters 15 mounted on the outer contour 12 of the false ceiling, and / or on the periphery 13 of the space 1, at the location of the spaces 1 in order to reduce a width of said spaces 1 1.
• width of the space 11 is meant the dimension of the space 1 1 in a direction perpendicular to the walls 2.
• flaps 15 may be removable flaps or shutters 15 irreversibly fixed to the false ceiling 8 and / or the walls 2.
• the present invention also proposes a method of air conditioning a room 1 provided with an air conditioner box 5.
• a false ceiling 8 is placed in the room 1.
• the false ceiling 8 is arranged with respect to a ceiling 4 so that an intermediate volume Vi is formed between the false ceiling 8 and the ceiling 4, an air-conditioned volume Vc is formed between the false ceiling 8 and a floor 3 of the room 1.
• the false ceiling 8 may be provided with orifices forming diffusion means 1 1. It is also possible to provide spaces 1 1 between an outer contour 12 of the false ceiling and a periphery 13 of the local 1, so as to form the diffusion means.
• the air conditioner box 5 is moved along the wall 2, generally turned up and raised on said wall 2, so that the blowing holes 10 is located in the upper part, at the intermediate volume Vi and the orifices aspirants 7, in the lower part, at the level of the air-conditioned volume Vc. It is also possible to use a flue 25 disposed between the air conditioner box and the ceiling rather than refitting the air conditioner box on the wall 2.
• the air conditioning method then consists of taking untreated air into the conditioned volume. Vc of the room 1, via the suction orifices 7 and exhaling treated air in the intermediate volume Vi, by means of the blowing ports 10. The treated air diffuses from the intermediate volume Vi to the volume conditioned Vc by diffusion means 1.
• the cooling by the walls according to the invention provides an energy saving compared to the case where the cooling is carried out by central blowing. Indeed, in one example, for a feeling of 24 °, it is equivalent to have, first solution, a layer of air against the walls at 22 ° and a central ambient air at 26 ° C, where second solution, an air layer against the walls at 26 ° C and a central ambient air at 22 ° C.
• the sanitary standards generally provide, and in the context of air conditioning in closed circuit in particular, that 40% of the air in a room is to be changed every hour.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Duct Arrangements (AREA)

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• 2005
  • 2005-10-13 WO PCT/FR2005/050850 patent/WO2006042991A1/fr active Application Filing
  • 2005-10-13 EP EP05810690A patent/EP1807661A1/de not_active Withdrawn

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