• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A building ventilation device 1, comprising a distribution plenum 4 arranged downstream of an air inlet duct 3 and provided with a plurality of air outlets, each air outlet comprising a plurality of air ducts. air diffusion 5, each air diffusion duct 5 comprising a perforated duct area, at least one pressure sensor 7, at least one controlled shutter register (8) disposed in each air outlet and mounted in upstream of the corresponding pressure sensor 7, and a control unit configured to receive pressure information from at least one pressure sensor 7 and to send a setpoint to the at least one shutter register (8).
    公开号:BE1027656B1
    申请号:E20200108
    申请日:2020-10-12
    公开日:2021-05-11
    发明作者:Ludovic Boulanger；Guillaume Vedy
    申请人:Ludovic Boulanger；Guillaume Vedy；
    IPC主号:
    专利说明:

    Building ventilation device The invention relates to the ventilation of premises with human or animal presence. In such premises, the air is renewed frequently to ensure quality ambient air. The human or animal presence can be permanent, temporary, occasional or repeated.
    Some applications provide for heating by the ventilation air. For reasons of comfort and safety, the temperature difference between the ambient air and the introduced air which is warmer than the ambient air is a significant parameter. In an application with ventilation air cooling, the temperature difference between the ambient air and the supply air cooler than the ambient air is a significant parameter. Condensation phenomena can also occur.
    From another point of view, a small difference in temperature between the ambient air and the introduced air is desired by the users called upon to be present or to enter the premises concerned. However, a small temperature difference between the ambient air and the introduced air requires high air flow rates. The flow speed is limited to avoid turbulence harmful to the flow and generating significant energy losses. Furthermore, the diameter of the sheath is limited by the size constraints within the building, the mass to be supported by the building structure, the mass of each part to be handled and assembled, the transport jig and the machine. manufacturing.
    One difficulty with ventilation systems is the complexity of airflow. There is sometimes a difference between the flow modeled on a computer in the design office and the actual flow measured. It has been proposed to add a manually adjustable leak to a sheath, cf. EP 2 224 183. This amounts to correcting a design, manufacturing or installation defect by static means. However, the effect of the fault is likely to vary depending on factors such as the ambient temperature, the temperature of the injected air, atmospheric pressure, air flow, etc. In addition, the Applicant noticed during modeling of such installations that the effect of the leak was also variable depending on several factors. In short, the defect is much more complex to correct. Indeed, the aeration system is supposed to provide an air flow at a speed at man's height at any point of the room within a determined range, the lower limit of which guarantees sufficient renewal and the upper limit guarantees the comfort of users. people or animals. A peculiarity of air flows is their non-linearity. Thus an increase in the flow rate of a ventilation system can result in a stagnation of the air speed at a first point of the room at human height, a decrease in the air speed at a second point room at breast height, and an increase in air speed at a third point in the room at ground level. A static correction is therefore outdated today.
    A method has also been proposed for regulating an air flow in an air conditioning installation according to EP 2 557 368. A pressure or flow detector is placed in a zone situated between a conditioning unit. air and a flow interruption element. However, this process, analyzed by the Applicant, does not make it possible to remedy the above defects, nor to homogenize the air in the room, nor to effectively reduce the air temperature differences between the floor and the top of the room. , neither to guarantee optimal operation at start-up and in steady state, nor to reduce regulation errors.
    The Applicant considers that the remediation of some of these drawbacks depends on the quality of the modeling of the premises and of the ventilation system, of the manufacture and installation of the ventilation system. While other of these drawbacks require an aeration system to correct, avoid or structurally overcome them.
    Continuing its research, the Applicant discovered that the positioning of the flow interruption elements and the positioning of the pressure or flow detector were faulty and did not allow proper regulation.
    There is a need to provide at any point of a building within a range of heights used by people or animals a calorific / cooling power, surface or volume, determined with a controlled temperature difference and an ambient air speed. in the building controlled, with dynamic adjustments of temperature, flow rate and interruption of a particular distribution duct.
    The invention satisfies such requirements which are at least in part contradictory.
    The Applicant has developed a building ventilation device with great flexibility of use, allowing a homogeneous distribution of the air in the zones of the building, a rapid mixing of cold air and hot air in the event of stratification. thermal, comfort of use of the building and adaptation to different uses of building areas.
    The invention provides a building ventilation device, comprising an air inlet pipe for receiving air downstream of a fan, a distribution plenum disposed downstream of the air inlet pipe and provided with a plurality of air outlets, each air outlet comprising a cylindrical skirt, a plurality of air diffusion ducts, each fluidly connected to one of the outlets, each air diffusion duct comprising a zone of perforated sheath, at least one pressure sensor arranged in one of the air outlets and fixed to the skirt of said air outlet, at least one controlled shutter register disposed in each air outlet equipped with said at least one sensor pressure, the shutter register being mounted upstream of the corresponding pressure sensor, and a control unit configured to receive pressure information from the at least one pressure sensor and to send a setpoint to the at least one register shutter.
    In one embodiment, the building ventilation device includes a plurality of pressure sensors each disposed in one of the air outlets and attached to the skirt of the corresponding air outlet. Each air outlet can be fitted with a pressure sensor. Alternatively, each air outlet except one can be fitted with a pressure sensor.
    In one embodiment, the distribution plenum has a rectangular parallelepiped shape, with at least one side connected to the air duct to receive air downstream of the fan, at least one side provided with at least one outlet. air, and at least one solid side, the plenum having walls each forming one of the sides outside the air outlets or air inlet, said walls comprising several layers.
    In one embodiment, the distribution plenum is made of sheet metal lined with insulating material. The distribution plenum may comprise two sheets and an insulator, mineral or organic, disposed in a sealed manner between said sheets.
    In one embodiment, the building ventilation device comprises said fan downstream of which the air inlet duct is disposed.
    In one embodiment, the building ventilation device comprises a plurality of distribution plenums disposed downstream of the air inlet duct, a first distribution plenum being connected to the air inlet duct and supplying power. the other distribution plenums. The first distribution plenum or master plenum supplies the others or subordinate plenums. The subordinate plenums can be of rank 1 supplied by the master plenum, of rank 2 supplied by a subordinate plenum of rank 1, etc.
    In one embodiment, the building ventilation device comprises a plurality of distribution plenums each disposed downstream of an air inlet duct, downstream of the fan. The ventilator supplies several air intake ducts, each of which can supply at least one distribution plenum.
    Other characteristics and advantages of the invention will emerge on reading the detailed description which follows, with reference to the appended figures, which illustrate: FIG. 1: a schematic view of the device according to one aspect of the invention: FIG. 2: a perspective view of a plenum of the device according to one aspect of the invention; Figure 3: a sectional view of the plenum of Figure 2; Figure 4: a top view of the plenum of Figure 2: Figure 5: a front view of the plenum of Figure 2; Figure 6: a perspective view of a plenum of a device according to another aspect of the invention.
    In general, a building to be ventilated comprises a floor, walls or closed walls and an upper surface formed by a ceiling, a lower face of a roof, etc. Partitions and floors can demarcate an interior space of the building into zones. In terms of ventilation, each zone is described by a certain number of characteristics: height, width, length, openings, space occupied by furniture or machines, duration of occupation - permanent, passage, intermittent or exceptional - type of occupation - human or animal, standing or sitting, etc., air leaks, insulation, sun exposure. The needs of each zone in terms of air renewal, heating and / or cooling are thus estimated by calculation. However, predicting the precise operating conditions of a ventilation installation is difficult. The quality of the components and the installation of the installation greatly contributes to this.
    The need is to provide energy-saving ventilation while offering high comfort to building users, which means avoiding excessively high local air movement speeds generating feelings of drafts, or even inconvenience. physical or medical problems, but also to avoid too low local air movement speeds unsatisfactory from a health point of view and which may be unpleasant for some people. Ensuring rapid mixing of the air is also desirable at the end of the night before or on the arrival of the first users in an area whereas the night shutdown desirable to save energy, could have led to an air concentration. heavier cold at the bottom of the zone and less cold lighter air at the top of the zone, called thermal stratification. Such a mixture in a zone having a height of several meters requires high local air movement speeds in the upper part of said zone. These objectives are largely contradictory.
    As illustrated in Figure 1, the ventilation device 1 of the building to be ventilated comprises a fan 2 and an air inlet duct 3 for receiving air from the fan 2. The air inlet duct 3 is arranged downstream of the fan 2. Upstream of the fan can be provided, an air heating / cooling member 11. The air inlet duct 3 in the building forms an outlet for the fan 2. The air duct. air inlet 3 may have a rectangular section with a width of the order of 0.5 to 1.5 m and a height of the order of 0.5 to 1 m. The ventilation device 1 includes a distribution plenum 4 to distribute the air downstream.
    The distribution plenum 4 is arranged downstream of the air inlet duct 3. The distribution plenum 4 is in the form of a rectangular parallelepiped. The distribution plenum 4 is connected on one side to the air inlet duct 3. The distribution plenum 4 can be made of sheet metal. It is possible to provide two thicknesses of galvanized steel sheet surrounding an insulating material, mineral or organic, forming an insulating lining, to constitute a flat panel. The panels can be assembled together by folding or welding. The distribution plenum 4 is provided with a plurality of air outlets. The air outlets are arranged on other sides of the distribution plenum 4, here on other lateral sides. Each air outlet comprises a cylindrical skirt and a plurality of air diffusion ducts 5. The cylindrical skirt is integral with the distribution plenum 4. The skirt is made of sheet metal. The skirt has the shape of a cylinder of revolution with a diameter greater than the length of said cylinder.
    Each air diffusion duct 5 is fluidly connected to one of the outlets. The connection between the air distribution duct 5 and the outlet is sealed to prevent flow losses.
    Each air diffusion duct 5 comprises an air diffusion portion provided with at least one vent 6 forming a perforated duct area. The vent 6 may be in the form of a perforation in a perforated wall. Vent 6 can also be in the form of a diffusion grid. The vents 6 are shown in thick lines in Figure 1. In the air diffusion duct 5 can be provided at least one tight-walled connecting portion to conduct the air flow from upstream to downstream.
    At least one pressure sensor 7 is arranged in one of the air outlets. More generally, a pressure sensor 7 is arranged in each of the air outlets, see FIG. 6, or in each of the air outlets except one, see FIGS. 2 to 5, insofar as the pressure in an outlet of air only without a pressure sensor 7 can be determined from the pressures measured by the pressure sensors arranged in the other air outlets.
    Each pressure sensor 7 is attached to the skirt of said air outlet supporting said pressure sensor 7. Each pressure sensor 7 can be screwed into or glued by adhesive to said air outlet. Each pressure sensor 7 is provided with a wired or wireless communication output. In the distribution plenum 4 is disposed at least one shutter register 8. Each shutter register 8 is disposed at least in each air outlet equipped with said at least one pressure sensor 7. The shutter register 8 can appear in the form of a parallelepipedal organ. The shutter register 8 may include a rectangular frame forming a central passage and a plurality of flaps movable between an open position and a closed position. The shutter register 8 is fixed in the distribution plenum 4 to an outer wall. The shutter register 8 is arranged across the opening of the air outlet. The shutter register 8 is mounted in contact with a vertical wall of the distribution plenum 4.
    The shutters can be tilting. The shutters can be sliding relative to fixed shutters. In the closed position, the shutters prevent air movement through the shutter register 8. In the open position, the shutters allow air movement through the shutter register 8 with low losses. The shutter register 8 includes an active actuator on the shutters to move the shutters between the open position and the closed position and vice versa. Here, the shutter register 8 is mounted on the inner side of the distribution plenum 4. The shutter register 8 is mounted upstream of the pressure sensor 7 of the corresponding air outlet. Thus, the operation of the shutter register 8 is controlled for each air outlet equipped with said at least one pressure sensor 7. The building ventilation device 1 comprises a control unit. The control unit is configured to receive pressure information from the at least one pressure sensor 7. The pressure information from the pressure sensor 7 can be transmitted by a wired or wireless link to the control unit. . The control unit is configured to send a setpoint to at least one shutter register 8. The setpoint information from the control unit can be transmitted over a wired or microwave link to the shutter register
    8. The communication link may be common to a pressure sensor 7 and a neighboring shutter register 8 or to pressure sensors and shutter registers of the same distribution plenum
    4. The control unit and fan 2 are connected by a control link to control fan 2.
    In a first embodiment, the fan 2 delivers an air flow in the air inlet duct 3 bringing the air flow into the distribution plenum 4 distributing the air flow between several diffusion ducts d air 5 by means of the registers controlled by the control unit. The pressure is measured in the air distribution ducts 5 by the pressure sensors. The control unit has information on the pressure in each air distribution duct 5 and is thus able to control the shutter registers to obtain a dynamic distribution of the air.
    In a second embodiment, there are provided a plurality of distribution plenums 4 arranged downstream of the air inlet pipe 3. A first distribution plenum 4 is connected to the air inlet pipe 3 and supplies other distribution plenums 4 and so on, the number of distribution plenum stages 4 being limited only by the pressure drops. One of the air outlets of the first distribution plenum 4 can be connected to a downstream pipe 9 leading to at least one other distribution plenum 10, shown in dashed lines in FIG. 1. The first distribution plenum 4 can be from type illustrated in FIG. 6, in particular with an open face towards the downstream pipe.
    In a third embodiment, a plurality of distribution plenums 4 are provided, each arranged downstream of an air inlet duct 3, downstream of the fan 2. The fan 2 supplies several air inlet ducts. mounted in parallel.
    In a fourth embodiment, there are provided a plurality of fans 2, for example two, supplying a distribution plenum 4, of the model illustrated in FIG. 6, arranged downstream of several air intake ducts 3, each in downstream of one of the fans 2. Each fan 2 supplies an air inlet pipe opening into the common distribution plenum 4. In general, the pressure sensor 7 disposed downstream of the shutter register 8 makes it possible to have a pressure value corresponding in a realistic manner to the flow rate of the air diffusion duct 5 arranged downstream of said shutter register. 8. A pressure / flow chart, if necessary integrating other parameters, can be established by measurement, by simulation or by learning. Since the measured pressure is the pressure corresponding very directly to the air flow in the air distribution duct 5, the control unit is able to control the distribution of the air flow much more precisely and less. sensitive to faults or errors. The installation is thus more robust in operation and offers increased comfort.
    权利要求:
    Claims (7)
    [1]
    1. Building ventilation device (1), comprising an air inlet pipe (3) for receiving air downstream of a fan (2), a distribution plenum (4) arranged downstream of the air inlet pipe (3) and provided with a plurality of air outlets, each air outlet comprising a cylindrical skirt, a plurality of air distribution ducts (5), each fluidly connected to one of the outlets, each air diffusion duct (5) comprising a perforated duct area, at least one pressure sensor (7) arranged in one of the air outlets and fixed to the skirt of said air outlet, at least one controlled shutter register (8) arranged in each air outlet equipped with said at least one pressure sensor (7), the shutter register (8) being mounted upstream of the corresponding pressure sensor (7) , and a control unit configured to receive pressure information from the at least one pressure sensor (7) and to send an instruction to the at least a shut-off register (8).
    [2]
    2. A building ventilation device (1) according to claim 1, comprising a plurality of pressure sensors each disposed in one of the air outlets and fixed to the skirt of the corresponding air outlet.
    [3]
    3. A building ventilation device (1) according to claim 1 or 2, wherein the distribution plenum (4) has a rectangular parallelepiped shape, with at least one side connected to the air duct to receive air. downstream of the fan (2), at least one side provided with at least one air outlet, and at least one solid side, the plenum having walls each forming one of the sides outside the air outlets or inlet d 'air, said walls comprising several layers.
    [4]
    4. Building ventilation device (1) according to one of the preceding claims, wherein the distribution plenum (4) is made of sheet metal lined with insulating material.
    [5]
    5. Building ventilation device (1) according to one of the preceding claims, comprising said fan (2) downstream of which the air inlet pipe (3) is arranged.
    [6]
    6. Ventilation device (1) for a building according to one of the preceding claims, comprising a plurality of distribution plenums (4) arranged downstream of the air inlet pipe (3), a first distribution plenum ( 4) being connected to the air inlet pipe (3) and supplying the other distribution plenums (4).
    [7]
    7. A ventilation device (1) for a building according to one of claims I] to 5, comprising a plurality of distribution plenums (4) each arranged downstream of an air inlet pipe (3), in downstream of the fan (2).
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    同族专利:
    公开号 | 公开日
    BE1027656A1|2021-05-05|
    FR3101937A1|2021-04-16|
    FR3101937B1|2021-10-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    ITMI20111538A1|2011-08-12|2013-02-13|Marco Zambolin|PROCEDURE FOR ADJUSTING THE AIR FLOW IN A PLANT FOR AIR TREATMENT AND ITS PLANT|
    US9657958B2|2013-07-22|2017-05-23|Ecogate, Inc.|Industrial on-demand exhaust ventilation system with closed-loop regulation of duct air velocities|
    FR3028012B1|2014-10-31|2016-12-23|Aereco|MODULATED NEW AIR DISTRIBUTION HUB|
    CN204902123U|2015-08-28|2015-12-23|张�雄|Fresh air conditioning machine control system|
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    法律状态:
    2021-06-18| FG| Patent granted|Effective date: 20210511 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1911240A|FR3101937B1|2019-10-10|2019-10-10|Building ventilation device|
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