FR3078087A1 - AERATION SYSTEM FOR A BUILDING - Google Patents

Abstract

The invention relates to a ventilation system (150) for a building and comprising: - a flexible ply (156) having two longitudinal edges (158a-b) parallel to one another and each having a first attachment system (160a-b); ), and - two rails (152a-b) parallel and intended to be fixed to the walls (104) of the building, each rail (152a-b) having a second fixing system (162a-b), where each second system of attachment (162a-b) cooperates with a first fastening system (160a-b) to provide a removable attachment of the longitudinal edge (158a-b) corresponding to the corresponding rail (152a-b), and wherein at least one of the two rails (152a-b) is pierced by at least one window (154a-b) which provides fluid communication between the interior of the flexible web (156) and the outside of the flexible web (156).

Description

VENTILATION SYSTEM FOR A BUILDING

TECHNICAL AREA

The present invention relates to a ventilation system for a building, in particular a livestock building, as well as a building comprising such a ventilation system.

STATE OF THE PRIOR ART

In each building, in particular a livestock building, it is necessary to install a ventilation system that allows to renew the air inside the building.

Some of these installations include a rigid pipe, for example of concrete, plastic or metal which is mounted on the ceiling and which is equipped with openings which allow the passage of air from the pipe to the interior of the building.

The air in the pipeline comes from outside and is driven by a fan.

While this type of installation is simple and inexpensive, it does not provide easy maintenance. Dust can collect in the pipeline and there is no simple procedure to clean the pipeline.

STATEMENT OF THE INVENTION

An object of the present invention is to provide a ventilation system for a building which is easy to maintain, and in particular easy to clean.

To this end, a ventilation system is proposed for a building and comprising:

a flexible sheet having two longitudinal edges which are parallel to each other and where each has a first fixing system, and

- two parallel rails intended to be fixed to the walls of the building, each rail comprising a second fixing system, where each second fixing system cooperates with a first fixing system in order to ensure a removable fixing of the longitudinal edge corresponding to the rail corresponding, and where at least one of the two rails is pierced with at least one window which ensures fluid communication between the interior of the flexible sheet and the outside of the flexible sheet.

Advantageously, for each window, the ventilation system comprises a shutter which is movably mounted on the rail between an open position in which the shutter leaves the window open and a closed position in which the shutter closes the window, a control unit, and an actuation system controlled by the control unit and intended to ensure the passage of each flap from the open position to the closed position and vice versa.

Advantageously, each flap is mounted mobile in rotation on the rail by its lower edge.

Advantageously, each rail has, above the windows, an inclined plane which extends from bottom to top, moving away towards the outside.

Advantageously, the rail takes the form of a hollow profile delimited in part by the inclined plane.

Advantageously, the ventilation system comprises arches which are distributed over the length of the flexible sheet.

The invention also provides a building comprising walls, a ventilation system according to one of the preceding variants, each rail of which is fixed to a wall, and means of movement which ensure movement of the air from the exterior of the building to the inside of the flexible sheet, then to the inside of the building through the windows, then to the outside of the building.

According to a particular embodiment, the means for setting in motion comprise a duct having a first end which opens out to the outside of the building and a second end which opens out inside the flexible sheet, a fan which is mounted at the level from the duct for sucking in the outside air and blowing it into the interior of the flexible sheet, and a hole made in a wall of the building.

According to a particular embodiment, the means for setting in motion comprise a duct having a first end which opens out to the outside of the building and a second end which opens out into the interior of the flexible sheet, a hole made in a wall of the building, and a fan that is mounted at the hole to draw air inside the building.

Advantageously, for each window, the ventilation system comprises a shutter which is movably mounted on the rail between an open position in which the shutter leaves the window open and a closed position in which the shutter closes the window, a control unit, and an actuation system controlled by the control unit and intended to ensure the passage of each flap from the open position to the closed position and vice versa, the building comprises a probe measuring a characteristic of the air in the building and connected to the control unit, and the control unit controls the actuation system and the means of setting in motion according to the value recorded by the probe.

BRIEF DESCRIPTION OF THE DRAWINGS

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:

Fig. 1 shows a schematic sectional view of a building according to a first embodiment of the invention, FIG. 2 shows a schematic sectional view of a building according to a second embodiment of the invention, and FIG. 3 is a perspective view of a portion of an aeration system according to the invention.

DETAILED DESCRIPTION OF EMBODIMENTS

Although the invention applies to all types of buildings requiring ventilation, the invention is more particularly described in the context of a livestock building.

Fig. 1 shows a breeding building 100 according to a first embodiment and which is here a pigsty but which could contain other animals. The building 100 has a floor 102, a ceiling 104 and walls 106.

In the embodiment of the invention presented here, the floor 102 is full, but it could be perforated to allow the discharge of the manure produced by the animals in a recovery channel.

Building 100 also has a ventilation system 150 that allows outside air to enter Building 100.

Fig. 2 shows a building 200 according to a second embodiment and which also comprises a floor 102, a ceiling 104 and walls 106. The building 200 also comprises the ventilation system 150 which makes it possible to introduce air coming from the outside in building 200.

Fig. 3 shows an example of the ventilation system 150 which is fixed to the ceiling 104. The ventilation system 150 comprises two rails 152a-b which are fixed to the ceiling 104 and which are parallel to each other. The two rails 152a-b are rigid and are made for example of rigid plastic or metal.

The ventilation system 150 also comprises a flexible sheet 156 having two longitudinal edges 158a-b which are parallel to each other and where each of them has a first fixing system 160a-b. The flexible sheet 156 is made of a flexible material such as for example a textile.

Each rail 152a-b has a second fixing system 162a-b which cooperates with a first fixing system 160a-b in order to ensure the removable fixing of the longitudinal edge 158a-b corresponding to the first fixing system 160a-b to the rail 152a -b corresponding to the second fixing system 162a-b.

Thus, one of the longitudinal edges 158a is removably fixed to one of the rails 152a by means of the removable fixing between the first fixing system 160a and the corresponding second fixing system 162a, and the other edge longitudinal 158b is removably fixed to the other rail 152b by means of the removable fixing between the first fixing system 160b and the corresponding second fixing system 162b.

A fixing is said to be removable, if it is possible to separate the first fixing system 160a-b from the second fixing system 162a-b without destroying or damaging either the first fixing system 160a-b or the second fixing system 162a -b, and if it is possible to fix the first fixing system 160a-b again to the second fixing system 162a-b.

In the embodiment of the invention presented here, each first fixing system 160a-b takes the form of an interlocking profile which is here a female part which extends along the longitudinal edge 158a-b and each second fastening system 162a-b takes the form of a complementary interlocking profile which is here a male part and which allows the female part to be interlocked on the male part.

The particular shape of the T-shaped male part allows the female part to be threaded in the shape of a T-groove along the male part. Of course, it is possible to reverse the positions of the male and female parts. Of course, other fastening systems are possible, such as hook systems or lever clasps.

The rails 152a-b and the flexible sheet 156 define, with the ceiling 104 to which they are fixed, a pipe 180 in which air is present.

At least one of the two rails 152a-b is pierced with at least one window 154a-b which ensures fluid communication between the interior of the pipe 180, that is to say the interior of the flexible sheet 156, and l outside of the flexible sheet 156, that is to say the inside of the building 100, 200. The air present in the pipe 180 can thus diffuse inside the building 100, 200 through each window 154a-b .

The removable tablecloth 156 allows it to be dismantled so that it can be cleaned and replaced easily.

In the embodiment of the invention presented in FIG. 3, the flexible sheet 156 extends over 180 ° because the two rails 152a-b are fixed to the ceiling 104, but as required, it is possible to fix the ventilation system 100 in a corner of the building 100 , 200 between the ceiling 104 and a wall 106. In this case, one rail is fixed to the ceiling 104 and the other rail is fixed to the wall 106 and the flexible sheet extends over 90 °. Thus, in general, the two rails 152a-b are fixed to the walls 104, 106 of the building 100, 200 where the walls are among the ceiling 104 or the walls 106.

In addition, as required, the spacing between the two rails 152a-b makes it possible to adjust the volume of air in the pipe 180.

Each end of the pipe 180 is closed by flanks 112a-b in order to delimit a volume of air. Depending on the layout, at least one of these sides 112a-b may be a wall 106 of the building 100, 200.

So that the air outside the building 100, 200 enters the pipe 180, the inside of the pipe 180 is in fluid communication with the outside of the building 100, 200, for example by a duct 114 which crosses the wall 106, where the conduit 114 has a first end which opens outside the building 100, 200 and a second end which opens into the pipe 180 by crossing here one of the sides 112a, that is to say here inside the flexible sheet 156.

In order to ensure the movement of the air, movement means 190, 290 are provided in the building 100, 200 to ensure movement of the air from the outside of the building 100, 200, up to inside the flexible sheet 156, then up to the inside of the building 100, 200 through the windows 154a-b, then up to the outside of the building 100, 200.

In the embodiment of FIG. 1, the means for setting in motion 190 comprise the conduit 114 and a fan 192 which is mounted at the level of the conduit 114 for sucking in the outside air and blowing it inside the conduit 114 as far as the interior of the pipe. 180, that is to say flexible ply 156.

The movement means 190 also include a hole 194 made in one of the walls 104, 106 of the building 100 to ensure the passage of air from the inside of the building 100 to the outside of the building 100.

In this embodiment, the air circulation takes place by overpressure in the building 100.

In the embodiment of FIG. 2, the moving means 290 comprise the conduit 114, a hole 294 made in one of the walls 104, 106 of the building 100 to ensure the passage of air from the interior of the building 100 to the exterior of the building 100, and a fan 292 which is mounted at the level of hole 294 to suck in the air which is inside building 200 and blow it outside building 200.

In this embodiment, the air circulation takes place by vacuum in the building 200 and the air enters through the conduit 114, then inside the flexible sheet 156, exits through the windows 154a-b, then through hole 294.

The hole 194, 294 can be extended inside the building 100, 200 by a chimney which opens out inside the building 100, 200. In the case where the floor 102 is perforated, the chimney can also be extended below the floor to create an air circulation.

In order to regulate the flow of fresh air entering the building 100, 200, the ventilation system 150 comprises, for each window 154a-b, a shutter 164a-b which is movably mounted on the rail 152a-b between an open position and a closed position. In the closed position, the shutter 164a-b closes the window 154a-b and in the open position, the shutter 164a-b leaves the window 154a-b open.

To ensure the passage of each flap 164a-b from the open position to the closed position and vice versa, the ventilation system 150 comprises an actuation system 166 controlled by a control unit 167.

The movement of each flap 164a-b can be a rotation or a translation. In the embodiment of the invention, each flap 164a-b is mounted movable in rotation around its lower edge.

The actuation system 166 can be associated with one or more flaps 164a-b and it comprises an actuator such as for example a jack or a motor and a transmission system which transmits the movement of the actuator to the flap 164a-b.

In the embodiment of the invention presented in FIG. 3, the actuator is a motor and the transmission system is the rotating axis of the motor which causes the shutter 164a-b to rotate around its lower edge in one direction or the other depending on the direction of rotation of the engine.

Of course, other installations are possible, such as, for example, a motor or a cylinder with rods. In addition, each flap 164a-b can take any intermediate position between the open position and the closed position.

To direct the air coming from the pipe 180 towards the ceiling 104 of the building 100, 200 and thus prevent the fresh air falling directly on the animals, each shutter 164a-b is mounted so as to rotate on the rail 152a-b by its lower edge, that is to say its edge which is on the side of the ground. When open, the shutter 164a-b then acts as a guide for the air leaving through the window 154a-b and directs it upwards.

To direct the air exiting through the windows 154a as far as possible on the sides, each rail 152a-b has, above the windows 154a-b, an inclined plane 168a-b which extends from bottom to top in s moving away from the outside with respect to the pipe 180. Thus, the air directed upwards by the flaps 164a-b is diverted towards the outside by the inclined planes 168a-b which thus serve as deflectors for directing the flow air to the room to be ventilated.

In addition, in the embodiment presented here, the rail 152a-b takes the form of a hollow profile delimited in part by the inclined plane 168a-b, and the hollow thus delimited can serve as a technical sheath.

To control the opening of the shutters 164a-b, as well as the speed of the fan 192, 292, the building 100, 200 is equipped with a probe 202 which measures an air characteristic of the building 100, 200. The probe 202 is for example a temperature probe which measures the temperature inside the building 100, 200.

The probe 202 is in communication with the control unit 167 which controls the actuation system 166 and the means of setting in motion 190, 290, and more particularly the fan 192, 292 according to the value recorded by the probe 202 in order to automatically regulate the temperature inside the building 100, 200. For example if the temperature is too high, the control unit 167 will command an acceleration of the fan 192, 292 and a greater opening of the shutters 164a-b. if the temperature is too low, the control unit 167 will command a slowing down of the fan 192, 292 and a smaller opening of the shutters 164a-b, or even a closing.

To prevent the flexible sheet 156 from being deformed under the action of the air flows which pass inside and outside, the flexible sheet 156 is equipped with arches 157 which are distributed over the length of the flexible sheet 156 so as to keep the flexible sheet 156 in position and thus prevent it from being crushed.

The hoops 157 can be fixed to the flexible sheet 156, but they can also be separated from the flexible sheet 156 and fixed to the rails 152a-b to facilitate disassembly and cleaning.

In the embodiment of the invention presented in FIG. 3, the hoops 157 are inside the flexible ply 156 which rests on the hoops 157. However, depending on the case, the flexible ply 156 may include sleeves inside or outside, in each of which a hoop 157 is positioned.

Depending on the angular extent of the flexible sheet 156, the arches 157 will extend over a semicircle or a quarter of a circle.

Claims (10)

1) Ventilation system (150) for a building (100, 200) and comprising: a flexible sheet (156) having two longitudinal edges (158a-b) parallel to each other and where each has a first fixing system (160a-b), and - two parallel rails (152a-b) intended to be fixed to the walls (104, 106) of the building (100, 200), each rail (152a-b) comprising a second fixing system (162a-b), where each second fixing system (162a-b) cooperates with a first fixing system (160a-b) in order to ensure a removable fixing of the longitudinal edge (158a-b) corresponding to the rail (152a-b) corresponding, and where at at least one of the two rails (152a-b) is pierced with at least one window (154a- b) which provides fluid communication between the inside of the flexible sheet (156) and the outside of the flexible sheet (156). 2) ventilation system (150) according to claim 1, characterized in that, for each window (154a-b), the ventilation system (150) comprises a flap (164a-b) which is movably mounted on the rail (152a-b) between an open position in which the shutter (164a-b) leaves the window (154a-b) open and a closed position in which the shutter (164a-b) closes the window (154a-b), a control unit (167), and an actuation system (166) controlled by the control unit (167) and intended to ensure the passage of each flap (164a-b) from the open position to the closed position and Conversely. 3) Aeration system (150) according to claim 2, characterized in that each flap (164a-b) is rotatably mounted on the rail (152a-b) by its lower edge. 4) Aeration system (150) according to claim 3, characterized in that each rail (152a-b) has, above the windows (154a-b), an inclined plane (168a-b) which extends from bottom to top, moving outward. 5) Aeration system (150) according to claim 4, characterized in that the rail (152a-b) takes the form of a hollow profile delimited in part by the inclined plane (168a- b). 6) Aeration system (150) according to one of claims 1 to 5, characterized in that it comprises arches (157) which are distributed over the length of the flexible sheet (156). 7) Building (100, 200) comprising walls (104, 106), a ventilation system (150) according to one of claims 1 to 6, each rail (152a-b) is fixed to a wall (104 , 106), and means for setting in motion (190, 290) which ensure a displacement of the air from the outside of the building (100, 200) to the inside of the flexible sheet (156), then to the interior of the building (100, 200) through the windows (154a-b), then to the exterior of the building (100, 200). 8) Building (100) according to claim 7, characterized in that the moving means (190) comprise a conduit (114) having a first end which opens out to the building (100) and a second end which opens out inside the flexible sheet (156), a fan (192) which is mounted at the level of the duct (114) to suck in the outside air and blow it into the inside of the flexible sheet (156) , and a hole (194) made in a wall (104, 106) of the building (100). 9) Building (200) according to claim 7, characterized in that the moving means (290) comprise a conduit (114) having a first end which opens out to the building (100) and a second end which opens inside the flexible sheet (156), a hole (294) made in a wall (104, 106) of the building (200), and a fan (292) which is mounted at the level of the hole (292) for draw air inside the building (200). 10) Building (100, 200) according to one of claims 7 to 9, characterized in that for each window (154a-b), the ventilation system (150) comprises a flap (164a-b) which is mounted movable on the rail (152a-b) between an open position in which the shutter (164a-b) leaves the window (154a-b) open and a closed position in which the shutter (164a-b) closes the window (154a- b), a control unit (167), and an actuation system (166) controlled by the control unit (167) and intended to ensure the passage of each flap (164a-b) from the open position to the closed position and vice versa, in that the building (100, 200) comprises a probe (202) measuring a characteristic of the air in the building (100, 200) and connected to the control unit (167), and in that that the control unit (167) controls the actuation system (166) and the means of setting in motion (190, 290) according to the value recorded by the probe (202).