FR3082288A1 - VENTILATION DEVICE FOR VENTILATION AND HEATING OR AIR CONDITIONING OF THE INTERIOR SPACE OF A CONSTRUCTION - Google Patents

Abstract

Device (1) for ventilating the interior space of a construction comprising a box (2) housing a generator (4) of an air flow dividing the inside of the box (2) into an upstream zone (5) and a zone (6) downstream of the zone (6) downstream of the box comprising two air outlet vents (7) and a partition (8) dividing said zone (6) downstream into a first chamber (9) equipped with at least part of an air heating and / or cooling system (25) and a second chamber (10), the first and second chambers (9; 10) each comprising at least two outlets (11; 12) closable air, at least one of the air outlets (11) of the first chamber (9) and at least one of the air outlets (12) of the second chamber (10) opening into the same air outlet opening (7). The box (2) is equipped at the upstream zone (5) with at least one outside air inlet (13) and one inside air inlet (14) each provided with a member (15, 16) controllable shutter.

Description

The invention relates to a ventilation device for the ventilation and heating or air conditioning of the interior space of a building.

It relates more particularly to a ventilation device for ventilation and heating or air conditioning of the interior space of a construction comprising a multiplicity of spaces to be ventilated, this device comprising a box delimited by walls, said box housing a generator an air flow, such as a fan, delimiting inside the box an area extending upstream of the air flow generator and an area extending downstream of the air flow generator taken with respect to the direction of circulation of the air flow inside the box, said box comprising at the level of the downstream zone at least two so-called ductable air blowing outlets, that is to say connectable by a duct with a space to be ventilated and at least one partition dividing said downstream zone into a first chamber equipped with at least part of an air heating and / or cooling system and a second chamber ; the first and second chambers each comprising at least two closable air outlets, at least one of the air outlets of the first chamber and at least one of the air outlets of the second chamber opening into the same mouth blowing.

PRIOR ART

Indoor air quality, its effect on human health and its economic and social costs are of increasing concern to the public. Several studies have shown that it is essential to ventilate closed rooms, by providing fresh air from outside, in order to ensure a healthy atmosphere.

On the other hand, buildings are becoming more and more insulated and airtight. This results in an increasingly lower consumption of heating. This has enabled, in recent years, the democratization of air heating systems. Air heating systems are supplied with air inside the building. This air is heated or cooled before being reinjected into the construction.

The increase in insulation and airtightness of buildings has at the same time contributed to increasing the risk of indoor pollution and its effects on the health of occupants and housing, since construction does not breathe more, as was the case for less airtight buildings.

In this context, the most conventional system consists in treating the ventilation of fresh air by a system independent of the air conditioning / heating system. The fresh air ventilation is then treated with a conventional VMC (controlled mechanical ventilation) single flow system, comprising fresh air inlets in the main room or rooms and stale air extraction outlets in the technical parts. However, this solution is not very effective. In fact, the combination of a single-flow VMC with a duct type air conditioning system can generate aeraulic disturbances with the air inlets located in each main room.

For these reasons, the main solution proposed at present is to use dual-flow VMC systems. The extraction is carried out as a simple flow in the service rooms and the supply of fresh air is done from a single entry, most often located under the eaves or on the roof, up to the main rooms, through a network of ducts connected to a fan motor. However, this solution turns out to present a significant cost price, because of the need to multiply the groups and the ventilation ducts.

To date, there is no simple and combined solution to provide heating and ventilation independently, that is to say by adjusting the air quality and temperature in each of the spaces to ventilate to heat from a single device.

An object of the invention is to propose a ventilation device of simplified design without harming the ventilation and heating capacities of several spaces by adjusting for each space the fresh air and heating needs.

Another object of the invention is to provide a ventilation device, the design of which requires only a single air flow generator to provide the heating and ventilation functions individualized by space.

Another object of the invention is to provide a ventilation device whose design allows a compact embodiment in the form of a box that can integrate all of the control elements of the device.

To this end, the subject of the invention is a ventilation device for ventilation and heating or air conditioning of the interior space of a construction, said device comprising a box delimited by walls, said box housing a generator. an air flow, such as a fan, delimiting inside the box an area extending upstream of the air flow generator and an area extending downstream of the air flow generator taken by relative to the direction of circulation of the air flow inside the box, said box comprising at the level of the downstream zone at least two so-called ductable air outlet openings and at least one partition dividing said downstream zone into a first chamber equipped with at least part of an air heating and / or cooling system and a second chamber, the first and second chambers each comprising at least two closable air outlets, at least one of the s air nettings from the first chamber and at least one of the air outlets from the second chamber opening into the same air outlet mouth, characterized in that the box is equipped at the upstream zone with at least two closable air inlets, capable of being supplied, one, called outside air inlet, with air taken from outside the building, the other, said inside air inlet, with taken air inside the construction, these air inlets each being provided with at least one shutter member and at least one drive control member for moving said at least one shutter member between a position open and a closed position.

The division, using the air flow generator, of the interior space of the box into an upstream zone and a downstream zone makes it possible to use the upstream zone provided with at least two air inlets in a mixing zone. air to ensure the supply of fresh air necessary for air quality and the downstream area for the thermal treatment of the air, this heat treatment can be individualized according to the spaces to be ventilated thanks to the design of air outlets allowing the use of the distribution ducts connectable to said outlets as a zone for mixing the heat treated air and the air not heat treated. The result is a compact device in the form of a simple box with centralized management of the heating and ventilation functions.

According to one embodiment of the invention, the shutter member of at least one of the air inlets is a butterfly valve and the drive control member in movement of said shutter member, a engine.

According to one embodiment of the invention, the upstream zone is internally equipped with at least one filter interposed between the air inlets and the air flow generator.

According to one embodiment of the invention, the closable air outlets of the first chamber and the second chamber which open into the same air outlet mouth are each provided with at least one shutter member and d a drive control member for moving said shutter member between an open position and a closed position.

Preferably, said shutter member is an individual shutter member. The presence of an independent movable shutter member moving at the outlet of each room makes it possible to adjust the air flow rate necessary for thermal comfort in each of the spaces to be treated while offering fine adjustment.

According to one embodiment of the invention, the shutter member of at least one of the air outlets is a butterfly valve and the drive control member in movement of said shutter member, a engine.

According to one embodiment of the invention, the heating and / or cooling system comprises an air / air heat exchanger and / or an air / liquid exchanger and / or a heat pump and / or at least one electrical resistance . This heating and / or cooling system can be partially or totally housed inside the box, depending on its embodiment.

According to one embodiment of the invention, at least one of the air outlet vents extends externally projecting from the wall of the box to form a section of duct. The duct section is able to cooperate by interlocking with a sheath. This results in easy positioning of the sheath on the outlet mouth by simple interlocking.

According to one embodiment of the invention, the ventilation device comprises a control unit configured to control at least the drive control members in movement of the shutters of the air inlets. This control unit allows automatic positioning of the shutter members by automatic actuation of the drive control members in displacement of the shutter members.

According to one embodiment of the invention, the ventilation device comprises means for supplying data to said control unit, and the control unit is configured to control at least the drive control members in movement of the members closing the air inlets according to said data.

According to one embodiment of the invention, the means for supplying data to said control unit comprise at least one temperature sensor and one air quality sensor.

BRIEF DESCRIPTION OF THE FIGURES

The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:

- Figure 1 shows a schematic view of a construction equipped with a ventilation device according to the invention.

- Figure 2 shows a principle view of a ventilation device according to the invention.

- Figure 3 shows a partial perspective view of the box of a ventilation device according to the invention, some parts having been removed to better visualize the inside of the box.

- Figures 4 and 5 each represent, taken from another angle, a view of the ventilation device of Figure 3.

- Figure 6 shows a schematic view of the face of a box equipped with two air inlets.

- Figure 7 shows a schematic view of the face of a box equipped with two air outlet vents.

DETAILED DESCRIPTION

As mentioned above, the subject of the invention is a ventilation device 1 for ventilating and heating or air conditioning the interior space of a construction 30 comprising a multiplicity of spaces 31, such as parts of the construction 30 to ventilate. In particular, such a ventilation device 1 allows the production of an air flow capable of putting the interior space of the construction 30 in slight overpressure relative to the exterior atmosphere.

This ventilation device 1 can be installed in the attic of construction 30, as illustrated in FIG. 1.

This device 1 comprises a box 2 comprising at least two air inlets 13, 14 and at least two air outlet openings 7. The number of air outlet vents is a function of the number of zones 31 of the construction to be ventilated, each so-called ductable air outlet opening 7 being connectable via a sheath 32 to the area 31 to be ventilated.

This sheath 32 is generally provided, at its end, with an air diffuser as shown.

In the examples shown, the box 2 is each equipped with two air outlet openings 7. The box 2 is delimited by walls 3 and each air outlet mouth 7 extends externally projecting from a wall 3 of the box to form a section of conduit. This results in ease of fitting of the sheath 32 onto the air outlet mouth 7 by fitting the sheath 32 onto the air outlet mouth 7.

The air inlets of the box 2 include at least one outside air inlet 13 capable of being supplied with air taken from outside the building 30.

To this end, in the example shown, a sheath connects an opening formed in the roof of the construction to the inlet 13 for outside air from the box.

This external air inlet 13 of the box 2 is equipped with a shutter member 15 and with a member 17 for controlling the movement of the shutter member 15 between a closed position and an open position.

In the example shown, the shutter member 15 is a butterfly valve and the movement control member 17 of the shutter member 15 is a motor.

The air inlets of the box 2 also include one or more interior air inlets 14. In the examples shown other than in FIG. 1, the box 2 is each time equipped with a single interior air inlet 14 capable of being supplied with air taken from inside the construction. In Figure 1, a second interior air inlet is shown in dotted lines. Thus, a first interior air inlet 14 is connected by a sheath to a zone of the construction taken at the level of the building floor, while a second interior air inlet 14 could be connected by a sheath to a construction area taken at the ground floor of the construction.

It should be noted that each interior air inlet 14 is equipped with a shutter member 16 and with a member 18 for controlling the movement of said shutter member 16 between a closed position and an open position. Again, the shutter member 16 is a butterfly valve and the control member 18 for moving the shutter member 16 a motor.

In the examples shown, the air inlets 13, 14 and the air outlet openings 7 are arranged on two opposite faces of the box 2. This box 2 is in the form of a hollow body shown here in a generally parallelepiped shape . This box 2 houses a generator 4 of an air flow formed here by a fan or a fan motor. This air flow generator 4 is here inserted into an interior partition of the box and divides the box 2 into two zones, namely a zone 5 extending upstream of the air flow generator 4 and called the upstream zone and a zone 6 extending downstream of the air flow generator, called the downstream zone, relative to the direction of circulation of the air flow inside the box, this air flow circulating from the air inlets of the box in the direction of the outlet openings 7. In fact, as mentioned above, the box 2 comprises at the level of the downstream zone 6 at least two air outlet openings 7, called ducts, that is to say on which a sheath is able to be connected . The air outlet openings 7, also called air supply vents, are formed in a wall of the box at the level of the downstream zone 6 while the air inlets are made in a wall of the box 2 at zone 5 upstream. Thus, the air circulates inside the box from the air inlets to the air outlet openings 7. To allow the diffusion of clean air, the upstream zone 5 is internally equipped with a filter 19 interposed between the air inlets 13 and 14 and the air flow generator 4.

The box 2 also comprises, at the level of the downstream zone 6, at least one partition 8 dividing this downstream zone 6 into a first chamber 9 equipped with at least part of a heating and / or cooling system 25 air and a second chamber 10. These first and second chambers are, in the examples shown, arranged one above the other and the wall 8 which separates them is a horizontal wall. These first and second rooms can potentially communicate with each other. These chambers are crossed in parallel by the air flow generated by the air flow generator 4. Indeed, the partition 8 separates the air flow from the air flow generator 4 into two flows, one passing through the first chamber 9, the other passing through the second chamber 10. The first chamber 9 is equipped with at least part of an air heating and / or cooling system 25 so that the air which circulates through this first chamber 9 can be heat treated. The heating and / or cooling system 25 equipping this first chamber can be formed by a simple electrical resistance capable of being supplied with current. This heating and / or cooling system 25 can be formed by an air-air or air-water heat exchanger, as shown in FIG. 3. In the case of an air-water exchanger, the circulating water in the exchanger is cooled in air conditioning mode or heated in heating mode and the air in the air flow from the flow generator cools or heats up by conduction in contact with the water circulation conduits.

This heating and cooling system 25 can also be a heat pump, as in the example shown in FIG. 1. This heating and / or cooling system 25 can comprise an internal heat exchanger 251 housed in the box and an external heat exchanger 252, said to be external, said internal and external heat exchangers being connected by a heat transfer fluid connection, the two heat exchangers playing one, the role of an evaporator, the other, the role of condenser.

In this case, the remote heat exchanger acts as a condenser in summer when the device is used in air conditioner mode and as an evaporator in winter when the device is used in heat pump mode, for building heating.

Means of forced circulation of air are also provided, such as a fan, making it possible to circulate the outside air through the remote heat exchanger and a compressor making it possible to circulate the heat transfer fluid in the fluid connection between indoor and outdoor heat exchangers.

The indoor heat exchanger plays the reverse role of the outdoor exchanger, i.e. the role of an evaporator in device cooling mode and a condenser in heating mode.

Each chamber 9, 10 of the box is equipped with at least two air outlets. Generally, the number of air outlets in each chamber is equal to the number of air outlet outlets 7 in the box.

The device here comprising two air outlet openings 7, two air outlets per chamber are provided. The air outlets of the first chamber 9 are shown at 11, while the air outlets of the second chamber 10 are shown at 12. Each time, an air outlet 11 from the first chamber 9 and an outlet 12 of air from the second chamber 10 open out and in this case are formed in the same air outlet mouth 7.

These air outlets are, at the level of the air outlet mouth 7, separated from each other by the compartment partitioning system which also serves to delimit the first and second chambers 9 and 10. Thus , when a sheath 32 is attached to the air outlet mouth 7, it can be supplied with both air from the first chamber 9 and air from the second chamber 10 of the box 2. The mixture between the air flow takes place in the sheath 32.

Each outlet 11, 12 of the same air outlet mouth 7 is provided with a shutter member. Thus, the air outlet 11 of the first chamber 9 is provided with a shutter member 21, while the air outlet 12 of the second chamber 10 is provided with a shutter member 22.

Thanks to these shutter members, the sheath 32 attached to the air outlet mouth 7 can be supplied only with air from the first chamber or only with air from the second chamber or a mixture of the two.

These shutter members 21 and 22 are individual shutter members, that is to say independent in movement and each shutter member 21, 22 is equipped with its drive drive control member 23, 24. . Thus, the member 21 for closing the air outlet 11 of the first chamber 9 is a butterfly valve and the displacement drive control member, shown at 23 in the figures, is a motor.

Likewise, the member 22 for shutting off the air outlet 12 from the second chamber 10 is a butterfly valve whose displacement drive control member, shown at 24 in the figures, is a motor.

The motors are arranged diametrically opposite each other, on the section of conduit projecting from the wall, and the butterfly valves pivot around aligned axes as illustrated in FIG. 7.

Each obturation member takes the form of a portion of a disc pivoting around a tree.

The shaft extends between the compartment partitioning system and the drive shaft, coaxially with said drive shaft, this pivot shaft forming an extension of the drive shaft.

Thus, the movement of each shutter member between the closed position and the open position is effected by simply driving the motor shaft in rotation. Due to the presence of a shutter member at the outlet, this results in the possibility of supplying the duct which can be connected to the air blowing mouth 7, that is to say solely from the air, possibly heat treated, originating from the first chamber, either only from air not heat treated from the second chamber, or from air from the two chambers, the mixture taking place in the sheath.

To complete the assembly, the ventilation device 1 comprises a control unit 26 configured to control at least the members 17, 18 for controlling the movement of the members 15, 16 for closing the air inlets 13, 14 and the members 23, 24 for controlling the movement of the members 21, 22 for closing the air outlets 11, 12 of the first and second chambers 9 and 10.

This control unit 26 includes electronic and / or computerized data processing means, such as a processor associated with a working memory. When the expression control unit is configured for is used, it means that the processor understands instructions to perform the action. This control unit 26 is therefore also configured to control the air flow generator, and in particular to control the electronic power circuit which supplies electrical energy to the air flow generator 4. This control unit 26 is also configured to control the heating and / or cooling system 25. As mentioned above, this heating and / or cooling system can be formed by a simple electrical resistance. In this case, the heating and / or cooling system 25 can be entirely disposed in the box 2 and the control unit is configured to control the electronic and / or electrical power circuit which supplies electrical energy to the electrical resistance.

To allow such control, the ventilation device 1 comprises means 27 for supplying data to said control unit 26. The control unit 26 is configured to control at least the members 17, 18 for controlling the movement of the members 15, 16 for closing the air inlets 13 and 14 according to said data, but also the generator 4 of air flow and the heating and / or cooling system 25 and the members 23 and 24 for controlling the movement of the members 21 and 22 for closing the outputs 11 and 12 of the first and second chambers 9 and 10 at least according to said data.

The means 27 for supplying data can take a large number of forms. These means 27 for supplying data to said control unit 26 comprise at least one temperature sensor 271 and an air quality sensor 272 whose signals are transmitted to said unit 26.

The air quality sensor can be a CO- sensor, a humidity sensor or the like. The signals generated by said sensors are capable of being transmitted to the control unit by wired or wireless link. The data supply means 27 can also include a man / machine interface and / or a memory for storing predefined data, configured to send a temperature setpoint and an air quality setpoint by zone to the control unit. to be broken down or data capable of allowing the calculation of said setpoints.

The man / machine interface can be formed by a remote control, a keyboard, a thermostat 273, a programmer 274 or the like.

The control unit is configured to generate control signals from the data measured by the sensors and the temperature and air quality setpoints received or stored or calculated:

-members for controlling the movement of the members 5 for closing the air inlets and outlets of the box,

-the air flow generator,

-the heating and / or cooling system.

Thanks to this possibility of acting on a large number of actuators, this results in fine control of the air circulating in the construction.

By producing the device in the form of a box incorporating all of the elements to be controlled, this results in simplicity of manufacture and installation of the device.

Claims (11)

1. Ventilation device (1) for ventilating and heating or air conditioning the interior space of a building (30), said device (1) comprising a box (2) delimited by walls (3), said box (2) housing a generator (4) of an air flow, such as a fan, delimiting inside the box (2) an area (5) extending upstream of the generator (4) of air flow and a zone (6) extending downstream of the air flow generator (4) taken with respect to the direction of circulation of the air flow inside the box (2), said box ( 2) comprising at the level of the downstream zone (6) at least two air outlet vents (7) said to be ductable and at least one partition (8) dividing said downstream zone (6) into a first chamber (9) equipped with '' at least part of an air heating and / or cooling system (25) and a second chamber (10), the first and second chambers (9; 10) each comprising at least ns two closable air outlets (11; 12), at least one of the air outlets (11) of the first chamber (9) and at least one of the air outlets (12) of the second chamber (10) opening into the same air outlet mouth (7), characterized in that the box (2) is equipped at the level of the zone (5) upstream with at least two inlets (13, 14) d closable air capable of being supplied, one, known as the outside air inlet (13), with air taken from outside the building (30), the other, called the indoor air inlet (14) , in air taken inside the building (30), these air inlets (13, 14) being each provided with at least one shutter member (15, 16) and at least one member ( 17, 18) for controlling the movement of said at least one shutter member (15, 16) between an open position and a closed position. 2. Ventilation device (1) according to claim 1, characterized in that the member (15, 16) for closing at least one of the air inlets (13, 14) is a butterfly valve and the member (17, 18) for driving the displacement of said shutter member (15, 16), a motor 3. Ventilation device (1) according to one of claims 1 or 2, characterized in that the upstream zone (5) is equipped internally with at least one filter (19) interposed between the inlets (13, 14) d and the air flow generator (4). 4. Ventilation device (1) according to one of claims 1 to 3, characterized in that the closable air outlets (11; 12) of the first chamber (9) and the second chamber (10) which open out in the same air outlet mouth (7) are each provided at least with a shutter member (21, 22) and with a member (23, 24) for controlling the movement of said member (21 , 22) shutter between an open position and a closed position. 5. Device (1) for ventilation according to claim 4, characterized in that said shutter member (21, 22) is an individual shutter member. 6. Device (1) for ventilation according to one of claims 4 or 5, characterized in that the member (21, 22) for closing at least one of the air outlets (11, 12) is a butterfly valve and the member (23, 24) for controlling the displacement movement of said shutter member (21, 22), a motor. 7. Ventilation device (1) according to one of claims 1 to 6, characterized in that the heating and / or cooling system (25) comprises an air / air heat exchanger and / or an air / liquid exchanger and / or a heat pump and / or at least one electrical resistance. 8. Device (1) for ventilation according to one of claims 1 to 7, characterized in that at least one of the air outlet vents (7) extends externally projecting from the wall (3) of the box (2) to form a section of conduit. 9. Device (1) for ventilation according to one of claims 1 to 8, characterized in that it comprises a control unit (26) configured to control at least the organs (17, 18) of drive control in displacement of the members (15, 16) for closing the air inlets (13, 14). 10. Device (1) for ventilation according to claim 9, characterized in that it comprises means (27) for supplying data to said control unit (26), and in that the control unit (26) is configured to control at 5 minus the members (17, 18) for controlling the movement of the members (15, 16) for closing the air inlets (13, 14) as a function of said data. 11. Device (1) for ventilation according to claim 10, characterized in that ίο the means (27) of supplying data to said control unit (26) comprise at least one temperature sensor (271) and one sensor (272 ) of the air quality.