• 专利附录
  • 专利说明
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    • 专利摘要:
    The device (1) for producing an air flow (F ') comprises an enclosure (10), which is intended to contain a volume of liquid (V), and which comprises at least one discharge opening of air (101), air injection means (12) for creating and passing an incoming airflow (F) from outside the enclosure into a liquid volume (V) ) contained in the chamber, by introducing said flow of air (F) entering said liquid volume (V) below the surface of said liquid volume (V), so that an air flow (F ') outgoing, treated by direct contact with the volume of liquid, is discharged outside said chamber through the air outlet opening (101) of the enclosure. The enclosure comprises one or more baffles (14; 14 '; 14 ") which are interposed between the liquid volume (V) and the said discharge opening (101) and which make it possible to circulate the flow of air ( F ') exiting the volume of liquid to the discharge opening (101), causing it to undergo one or more changes of direction, so as to prevent liquid spilling through the air outlet opening (101).
    公开号:FR3014549A1
    申请号:FR1460141
    申请日:2014-10-22
    公开日:2015-06-12
    发明作者:Jaouad Zemmouri
    申请人:Starklab SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to the production of a flow of air through a volume of liquid. It finds its application in various fields such as, for example, and non-exhaustively, the production of a flow of air that is heated or cooled by passing through said volume of liquid, the production of an air flow of which the temperature is controlled and / or the absolute humidity of which is controlled, the humidification or the dehumidification of an air flow, the depollution or the filtering of an air flow, the heating or air conditioning of greenhouses , the heating or the air-conditioning of a local or industrial, tertiary, or domestic buildings, the control of the hygrometry of a local or industrial buildings, tertiary, or domestic. The product air stream can also be used to cool, heat, humidify or dehumidify any type of surface. PRIOR ART The use of the thermal conductivity and the latent heat of a liquid, such as for example water, for heating or cooling an air flow by heat exchange between the liquid and the air flow, With a direct contact of the air flow and the liquid, is an old technique, which has the advantage of being environmentally friendly, because it avoids including the use of coolants refrigerants type fluids. The heating or cooling of the air flow may, for example, be aimed at producing a flow of air having a controlled temperature and / or having the objective of producing an air flow having a controlled absolute humidity. A first known solution for implementing this technique is to pass the air flow through a curtain of fine droplets of the liquid or through an exchange surface permeable to air and containing this liquid, such as for example a textile material impregnated with water. The main drawback of this type of solution lies in the very low energy efficiency of the heat exchange between the liquid and the air flow, and in the low airflows that can be obtained. A second known solution is to pass the flow of air directly through a volume of liquid contained in an enclosure, by injecting the flow of air into the liquid volume, below the surface 5 of said volume of liquid. This type of solution is described for example in international patent application WO 2006/138287 and in US Pat. Nos. 4,697,735 (FIG. 3) and US Pat. No. 7,549,418. This second technical solution has the advantage of making it possible to achieve energy efficiencies of the heat exchange between the liquid and the higher airflow. OBJECT OF THE INVENTION An object of the invention is to propose a new technical solution for improving the production of an air flow through a volume of liquid contained in an enclosure. SUMMARY OF THE INVENTION According to a first aspect, the invention thus relates to a device for producing an air flow comprising an enclosure, which is intended to contain a volume of liquid, and which comprises at least one opening air discharge means, air injection means for creating and passing a flow of air entering from the outside of the enclosure in a volume of liquid contained in the enclosure by introducing said flow of air into said liquid volume below the surface of said liquid volume, such that an outgoing air flow, treated by direct contact with the liquid volume, is evacuated by outside said enclosure passing through the air evacuation opening of the enclosure. The enclosure comprises one or more baffles which are interposed between the volume of liquid and said discharge opening, and which make it possible to circulate the flow of air leaving the volume of liquid to the discharge opening, in causing it to undergo one or more changes of direction, so as to prevent liquid spilling through the air exhaust opening. When the flow of air passes through the volume of liquid, depending in particular on the manner in which the air is introduced into the volume of liquid, and depending on the air flow and the volume of liquid, it occurs in the volume liquid turbulence more or less significant likely to cause drops projections that are driven by the air flow. The baffles of the device of the invention form an obstacle on the path of these drops and reduce the risk that these drops are caused by the flow of air to the discharge opening. This advantageously results in that the flow rate of the air flow can be very high and / or that the volume of the chamber can be small, which reduces the size of the device, while avoiding the projection of drops of liquid in outside the device enclosure. More particularly, the device of the invention may comprise the following additional and optional features, taken alone, or in combination with each other: each baffle is a plate which is fixed inside the enclosure while being in sealing contact over its entire periphery with the enclosure, and which has at least one through opening for the passage of the outgoing air flow through the plate. - The device comprises several baffles whose through openings 20 are not aligned with the air evacuation opening of the enclosure. the enclosure comprises an upper wall, a bottom wall and a lateral wall connecting the upper wall and the bottom wall, and in which the inlet opening and the discharge opening are made in the upper wall; of the enclosure. - The device comprises temperature control means which automatically maintain the temperature of said liquid volume in the chamber at a preset temperature (Tliquide). - The temperature control means allow a renewal of the liquid in the chamber so as to automatically maintain in the chamber a predefined volume of liquid at a preset temperature (Thquide). the air injection means comprise a tube which is positioned inside the enclosure, which is connected to the air intake opening, and which has an air outlet immersed in the volume of liquid. - Each baffle has a through opening for the passage of the tube, and the tube is passed through said through opening of each baffle, being in sealing contact over its entire outer periphery with the baffle at each through opening. the air injection means make it possible to introduce the flow of air entering the volume of liquid at a depth of between 20 mm and 80 mm. - The air injection means comprise an air compressor, which is outside the enclosure, and whose output can be connected or is connected to the air inlet opening of the pregnant. - The air injection means comprise an air compressor, which is outside the enclosure, and whose inlet can be connected or is connected to the air outlet opening of the 'pregnant. the air injection means comprise a single air compressor, which is outside the enclosure, and the device has two modes of operation: a first mode of operation in which the compressor output can be connected or connected to the air intake opening of the enclosure, and a second mode of operation in which the compressor inlet can be connected or connected to the exhaust air opening of the 'pregnant. - The air compressor is centrifugal type. the air compressor allows heating of the air passing through the air compressor with a temperature gradient AT of at least 2 ° C. the air injection means make it possible to create and introduce said flow of air with an air flow rate of at least 100 m 3 / h. the device comprises means for controlling the temperature of the liquid volume, which make it possible to adjust the temperature of the volume of liquid contained in the enclosure (10) as a function of at least a predetermined hygrometry setpoint (HRcons) so as to automatically adjust the absolute humidity of said air flow (F ') leaving the enclosure. The device comprises at least one humidity sensor, the means for controlling the temperature of the liquid volume make it possible to adjust the temperature of the volume of liquid contained in the chamber as a function of the humidity measured by the sensor; humidity and at least a predefined hygrometry setpoint (HRcons). The invention also relates to a method for producing an air flow by means of the aforementioned device and wherein the enclosure of the device contains a volume of liquid, and in particular a volume of water.
    [0002] More particularly, the method of the invention may comprise the following additional and optional features, taken separately, or in combination with each other: the height (H + H1) of the liquid volume is less than 200 mm, and preferably of the order of 100mm. - The temperature of the liquid volume is maintained at a preset temperature (Thquide) which is different from the temperature (Tinitiale) of the air flow (F) entering the chamber. - The method allows the production of a heated air flow, and the temperature (Thquide) of the liquid in the chamber is greater than the temperature (Tinitiale) of the air flow entering the chamber. the temperature of the heated air flow is substantially equal to or slightly greater than the temperature (liquid) of the liquid. - The process allows the production of a cooled air flow and the liquid temperature (Thquide) is lower than the temperature (Tinitiale) of the air flow entering the chamber. the temperature of the cooled air flow is substantially equal to the temperature (Thquide) of the liquid. - The flow rate of the air flow entering the chamber is at least 100m3 / h. the ratio between the flow rate of air entering the chamber and the volume of liquid contained in the chamber is greater than 104 h -1. the flow of air coming from outside the enclosure and entering the enclosure comprises particles and / or pollutants, and at least part of these particles and / or pollutant is captured in the liquid contained in the 'pregnant.
    [0003] The invention also relates to a use of one or more devices referred to above, for heating a room or for cooling a room and / or for humidifying and / or dehumidifying a room, and in particular a greenhouse. The installation comprises at least one aforementioned device, which is arranged in such a way that the air which is introduced into the chamber of the device is air coming from outside the room. More particularly, the installation of the invention may comprise the following additional and optional features, taken alone, or in combination with each other: the installation allows the heating or humidification of a room, and further comprises a heat exchanger connected to the enclosure of the device, so that the heated air from the enclosure passes through said heat exchanger, before being introduced into the room, and air recirculation means that can feed the room. heat exchanger with recirculated air from the local interior, such that air from the device and passing through the heat exchanger is heated by said recycled air from within the local. - The installation further comprises an air heating device interposed between the heat exchanger and the local interior, so as to preheat the air from the device and passing through the heat exchanger before its introduction into the room. the installation makes it possible to cool or dehumidify a room, and furthermore comprises a heat exchanger connected to the enclosure of the device, and air recycling means which make it possible to feed the heat exchanger with water. recycled air from the local interior, so that the air introduced into the enclosure of the device is previously cooled, through the heat exchanger, by said recycled air from the interior of the room. The invention also relates to a use of one or more devices referred to above to heat a room or to cool a room, or to humidify a room or to dehumidify a room. BRIEF DESCRIPTION OF THE FIGURES The characteristics and advantages of the invention will appear more clearly on reading the following detailed description of several particular embodiments of the invention, which particular embodiments are described by way of non-limiting examples. and non-exhaustive of the invention, and with reference to the accompanying drawings in which: - Figure 1 shows schematically an alternative embodiment of a device of the invention for the production of an air flow to through a volume of liquid. FIG. 2 is an isometric view of the device of FIG. 1, without the means for replacing the liquid in the enclosure. - Figure 3 schematically shows another alternative embodiment of the device of Figure 1. - Figure 4 is an isometric view of the device of Figure 3, without the liquid renewal means in the chamber. - Figure 5 schematically shows a heating system of a room. - Figure 6 schematically shows a cooling installation of a room. - Figure 7 shows an installation for controlling the humidity of a room. DETAILED DESCRIPTION With reference to the particular variant embodiment of FIGS. 1 to 10 4, the device 1 for producing an air flow comprises a closed enclosure 10, which comprises an upper wall 10a, a bottom wall 10b and a wall 10c side connecting the upper wall 10a to the bottom wall 10b. In this particular example, the side wall 10c of the enclosure 10 is tubular in shape, but could within the scope of the invention have any other shape. The chamber 10 contains in the bottom a liquid volume V, of height H, whose temperature is controlled. This liquid is preferably water, but in the context of the invention it is possible to use any type of liquid. The enclosure 10 also comprises an air intake opening 100 and an air evacuation opening 101 positioned outside the volume of liquid V. In this variant of FIGS. 1 to 4, but in a nonlimiting manner, the invention, the air inlet opening 100 and the air outlet opening 101 are formed in the upper wall 10a of the enclosure 10. The device 1 comprises means for renewal 11 of the liquid contained in the enclosure. These renewal means 11 have the function of automatically feeding the chamber 10 with liquid, so as to maintain in the chamber 10 a predefined volume of liquid V at a predetermined temperature. The device 1 also comprises air injection means 12, 3014 54 9 9 which make it possible to create and introduce into the volume V of liquid contained in the enclosure 10, an incoming air flow F coming from from the outside of the enclosure 10. In the particular variant illustrated in FIGS. 1 to 4, these air injection means 12 more particularly comprise an air compressor 120, for example of fan type and a tube 121. The injection tube 121 is open at its two upper ends 121a and lower 121b. The upper open end 121a of the tube 121 is connected to the air inlet opening 100 of the enclosure 10. The lower open end 121b of the tube 121 forms an air outlet and is immersed in the air volume. V liquid, being positioned at a depth Hi, which corresponds to the distance between the surface of the liquid volume V and the air outlet 121b of the tube 121. In this embodiment, depending on the operating mode of the device ( by air blowing / Figures 1 and 2, by air suction / Figures 3 and 4), the air compressor 120 is connected to the air inlet opening 100 of the enclosure 10 or the air evacuation opening 101 of the enclosure 10. The device 1 also comprises a plurality of plates 14, 14 ', 14 "function of baffles, which are interposed between the volume of liquid V and the discharge opening 101 of the enclosure 10. These plates 14, 14 ', 14 "are fixed inside the enclosure 10, one above the other, with a space between plates 14, so as to form several superimposed chambers E1, E2, E3 and E4. Each plate 14, 14 ', 14 "is in sealing contact over its entire periphery with the side wall 10c of the enclosure 10. The first chamber E1 is delimited by the surface of the liquid volume V and the bottom plate 14. The second E2 chamber is delimited by the lower plate 14 and the intermediate plate 14 'The third chamber E3 is delimited by the intermediate plate 14' and the upper plate 14 ". The third chamber E4 is delimited by the upper plate 14 "and the upper wall 10a of the enclosure 10.
    [0004] The number of plates 14, 14 ', 14 "and chambers E1, E2, E3 and E4 are not limiting of the invention, the device 1 may comprise a single plate 14 defining two or more chambers of three plates defining more than four bedrooms.
    [0005] Each plate 14, 14, 14 "has a through opening 140 having substantially the same section as the injection tube 121. These through openings 140 are aligned vertically, and the injection tube 121 is passed through these openings 140, the tube 121 being in sealing contact over its entire outer periphery with each plate 14, 14 ', 14 "at each opening 140 for passage of the tube. Each plate 14, 14 ', 14 "also comprises at least one through opening 141 making it possible to communicate two adjacent chambers with each other, and thus allowing the passage of a flow of air F' coming out of the volume of liquid V, and which for example, has been cooled or heated by the liquid, from one chamber to another from the lower chamber E1 to the discharge opening 101. These openings 141 are offset vertically relative to one another and are not not aligned with the air evacuation opening 101 of the enclosure 10, so as to cause several changes of direction to said air flow F 'In the particular variant of FIGS. renewal 11 of the liquid in the enclosure 10 comprise: a liquid inlet opening 110 made in the side wall 10c of the enclosure 10 close to the bottom wall 10b of the enclosure 10; of the evacuation of the liquid 111 carried out in the bottom wall 10b of the enclosure; a liquid outlet pipe 112 which is connected at one end to the discharge opening 111 of the enclosure 10, and which in this particular example is connected at its other end to a source of liquid S; pump means 113, of the hydraulic pump type, which are connected to the source of liquid S and to the inlet opening 110 of the enclosure, and which make it possible to pump liquid into the source of liquid S and introducing it into the enclosure 10 through the inlet opening 110, so as to renew the liquid in the enclosure. In the context of the invention, the outlet pipe 112 of the liquid is not necessarily connected to the source of liquid S. The renewal means 11 of the liquid in the enclosure 10 comprise for example: - at least one sensor temperature 114 for measuring the temperature of the liquid volume V in the chamber 10; at least one low level sensor 115a and a high level sensor 115b making it possible to measure the level H of liquid in the chamber; electronic processing means 116, for example of the industrial programmable logic controller type or electronic control / command card, which are connected to the temperature sensor 114 and to the level sensors 115a and 115b, and which output a control signal 113a for controlling the pumping means 113. The electronic processing means 116 are designed, and more particularly are for example programmed, to control the pumping means 113 by means of the control signal 113a, from the measurement signals delivered by the temperature sensor 114 and the level sensors 115a and 115b, and as a function of minimum temperature setpoints Tmin and maximum Tmax, and minimum liquid volume (or level) setpoints Vmin and maximum Vmax, so as to maintain constantly in the enclosure 10 a volume of liquid V, between said minimum setpoint volume (Vmin) and said maximum setpoint volume (Vmax), and maintained at a the temperature Tiiquide which is between said minimum setpoint temperature (Tmin) and said maximum setpoint temperature (Tmax). FIGS. 1 and 2 illustrate a first mode of implementation and operation of the device 1, in which the air flow F at the inlet of the enclosure 10 is created by blowing air into the tube 121.
    [0006] In this embodiment, the air evacuation opening 101 of the enclosure 10 is in the open air. The outlet of the air compressor 120 is connected to the air inlet opening 100 of the enclosure 10, and the intake of the air compressor 120 is in the open air. When the air compressor 120 is operating, it draws air from the outside of the enclosure 1 and pushes this air into the injection tube 121 through the air inlet opening 100, in the form of an incoming air flow F, which is at an initial initial temperature substantially corresponding to the temperature of the ambient air outside the enclosure 10, or possibly at an initial initial temperature which may be slightly greater than the temperature of the ambient air 15 outside the chamber 10 due to the passage of air in the compressor 120. This air flow F entering at the initial temperature Tinitiale is injected, at the outlet of the tube 121, directly in the volume of liquid V, below the surface of the volume of liquid, V, and passes through this volume of liquid V which is at a liquid temperature (between Tmin and Tmax) different from the initial Tinitial temperature. During the passage of this air flow in the liquid volume V, there is a heat exchange by direct contact between the air and the liquid, so that air (cooled or heated as appropriate) the volume of liquid and a flow of air F 'cooled or heated up in the chamber 10 to be discharged through the discharge opening 101. This air flow F' at the exit of the The enclosure has a final temperature TFinale close to, and preferably substantially identical to, the liquid temperature of the liquid volume V contained in the enclosure. When the temperature of the liquid liquid is less than the initial initial temperature, the air flow F 'after passage of air in the liquid volume V has been cooled. It follows at the same time that the air flow F 'leaving the device 1 has been dehumidified with respect to the incoming air flow F, the absolute humidity (weight of water per volume of air) in the air flow F outgoing being lower than the absolute humidity of the incoming air flow F. Conversely, when the temperature of the liquid Tuquide is higher than the initial temperature Tinitiale, the air flow F 'after passage of air in the liquid volume V has been heated. It follows at the same time that the flow of air F 'leaving the device 1 has been moistened with respect to the incoming air flow F, the absolute humidity (weight of water per volume of air) in the air flow F outgoing being greater than the absolute humidity of the incoming airflow F.
    [0007] The flow of air F 'cooled or heated to a final final temperature TFinale, and preferably substantially identical to the Tuquide temperature of the liquid volume V, goes up inside the chamber 10 while circulating through the baffles 14 , 14 ', 14 ", and undergoing several changes of successive directions, then is evacuated outside the chamber 10 through the discharge opening 101. FIGS. 3 and 4 illustrate a second mode of implementation and operating mode of the device 1, in which the air flow F at the inlet of the enclosure 10 is created by suction In this embodiment, the air intake opening 100 of the enclosure The intake of the air compressor 120 is connected to the air exhaust opening 101 of the enclosure 10, and the outlet of the air compressor 120 is in the open air. When the air compressor 120 is operating, a flow of air F coming from outside the enclosure 1 is created by asp. in the injection tube 121 through the air inlet opening 110. The initial initial temperature of this air flow F corresponds to the temperature of the ambient air outside the enclosure 10 The flow of air F ', cooled or heated after passage of the air in the volume of liquid V, rises in the chamber through the baffles 14, 14', 14 "and then passes through the compressor 120 and is blown out of the enclosure 10 in the form of a stream of air cooled or heated to a final final temperature TFinale, and preferably substantially identical or slightly higher than the Tuquide temperature of the liquid volume V. In the two operating modes referred to above, the flow rate of air entering the chamber 10 is equal to the flow of air leaving the chamber 10. In the volume of the liquid V turbulences can occur that are significant, and which are likely to cause splashes of liquid drops, which are driven by the air flow F 'heated or cooled. The baffles 14, 14 ', 14 "of the device of the invention form an obstacle on the path of these drops and make it possible, thanks to the successive changes of direction of the air imposed by the baffles, to prevent liquid 10 The flow opening 101 is thrown out of the enclosure at the same time by the flow of air F. The baffles 14, 14 ', 14', no liquid drop is projected. This advantageously results in that the flow rates of the airflows F and F 'can be very high and / or that the volume of the enclosure can be small, which reduces the space requirement of the device. while preventing the projection of drops of liquid outside the enclosure of the device During the operation of the device 1, the inert and / or living particles, and especially the dust, in the surrounding air of the device 1 are advantageously aspirated in the device 1 and are filtered by being sensed in the e volume V of liquid contained in the chamber 10, which allows the output of the device 1 to obtain a cleaner air. Typically, all the particles greater than 2 μm can be filtered by the device 1. In another variant embodiment, the device 1 of the invention can be used to filter or depollute the incoming airflow F by passing through a volume of liquid. In this application, the temperature of the liquid volume may be higher or lower than the temperature of the incoming airflow F, or be substantially equal to the temperature of the incoming airflow F. When the temperature of the liquid volume is substantially 30 equal to the temperature of the incoming air flow F, there is produced at the outlet of the device 1 an outgoing air flow F 'filtered or depolluted, which has not been heated or cooled, but which is substantially at the same temperature In another alternative embodiment, the liquid renewal means 11 may be replaced by means for heating or cooling the liquid volume V, which make it possible to maintain the temperature of the liquid volume without necessarily achieve a renewal of the liquid in the enclosure. The invention advantageously makes it possible to work with an air flow at the outlet of the compressor 120 which may be large and in particular greater than 100 m 3 / h. In a particular embodiment, the volume of the enclosure 10 was of the order of 5 liters. The volume of liquid V in the chamber 10 was less than 3 liters. The invention is however not limited to these particular values of air flow and volumes. More particularly, in the context of the invention, the ratio between the flow rate of air entering the chamber and the volume V of liquid present in the chamber 10 may advantageously be 104 h -1. a low liquid consumption and advantageously allows to maintain the required temperature a small volume of liquid in the chamber 10, which requires less energy compared to a volume that would be larger. During operation, because of the heat exchanges between the air and the liquid, the liquid cools (if liquid) or warms up (if liquid The liquid renewal means 11 allow to renew the liquid in the chamber with The depth H1 of the air outlet of the injection tube 121 must be large enough so that the liquid is new to the temperature required in the chamber 10 at a predefined liquid volume V. treatment of the air flow by passing through the volume of liquid V, and more particularly so that, if appropriate, the heat transfer between the liquid and the air injected into the liquid volume V, is efficient and sufficient, and If necessary, the flow of air F 'cooled or heated by the liquid to be at a temperature close to and preferably substantially identical to that of the liquid, conversely, this depth H1 should not be too important to avoid oversizing of the air compressor 121. The depth H1 is thus preferably between 20mm and 80mm. Similarly for better efficiency, the height (H + H1) of the liquid volume V should preferably not be too large, and will preferably be less than 200mm, and more particularly of the order of 100mm. The invention is however not limited to these particular values.
    [0008] The compressor 120 may be any known type of air compressor for creating an air flow (centrifugal fan, axial fan, pump, ...). Nevertheless, the air compressor 120 is preferably a centrifugal air compressor, because this type of compressor advantageously makes it possible to obtain high air flow rates, and also to obtain a significant difference in temperature AT of the air between the output of the compressor 120 and the inlet of the compressor, compared for example with an axial compressor. In practice, this difference in temperature AT for a centrifugal air compressor is at least 2 ° C. and can reach 4 ° C., the air leaving the compressor being at a temperature higher than the air temperature at the compressor inlet. Preferably, the operating mode of FIGS. 1 and 2 may be used in summer to provide an air-conditioning or dehumidification of a room, by producing one or more air streams F 'cooled by means of one or more devices 1 , from the hot air taken outside the room. The source of liquid S may advantageously be a water table or a cold water tank buried in depth or cooled by any known cooling system. Conversely, the mode of operation of FIGS. 3 and 4 is preferably used in winter to heat or humidify a room, producing one or more air streams F 'heated by means of one or more devices 1, from cold air taken outside the room. The source of liquid S is in this case a source of hot water, such as for example a heated water tank, a heated outdoor water basin, for example by solar energy, a water table or a water tank. hot. In this case, the use of a centrifugal type air compressor 120 advantageously makes it possible to use the temperature differential AT to increase the temperature of the air so that the compressor 120 with respect to the temperature of the air at the discharge opening 101 of the enclosure 10, which improves the energy efficiency.
    [0009] In both modes of operation, the invention applies to any type of premises. The room can be of industrial, domestic or tertiary type. The room can also be a greenhouse or a shed. In both modes of operation, the invention advantageously allows a continuous renewal of the air inside the room.
    [0010] The device 1 of the invention can also produce a flow of hot air or cooled and / or humidified or dehumidified directed on any type of surface to heat or cool and / or moisten or dry this surface. FIG. 5 shows schematically a heating and / or humidification installation of a room 2. This installation comprises one or more devices 1 for producing a heated air flow, of the type for example of device of Figure 1 operating by blowing. In another variant, it is nevertheless also possible to implement devices 1 of Figure 4 operating by suction. The number of devices 1 for producing a heated air flow will depend in particular on the air flows of the devices 1 and the volume of the room 2. The devices 1 will be judiciously distributed in the volume of the room 2. Each device 1 is arranged in the room 2 so that the air that is introduced into the chamber 10 of the device 1 is cold air from outside the room. The enclosure 10 of each device 1 is further connected at the output to a heat exchanger 3, so that the heated air leaving the device 1 passes through said heat exchanger 3 and is then outputted into an air heating device , for example comprising electric heating resistors or plate heat exchangers. The air preheated by the air heating device 4 is then introduced inside the room 2.
    [0011] The installation also comprises recycling means 5 for renewing the air in the room by sucking and pushing it outside the room 2, so as to maintain the temperature of the air in the room to a minimum. preset setpoint temperature. Part of this hot air from room 2 (FIG. 5 / branch 50) is recycled by being reintroduced inside room 2 downstream of heat exchanger 3. Another part of this hot air from room 2 ( FIG. 5 / branch 51) is sent into the heat exchanger 3, and passes through said heat exchanger 3, so that the air coming from the device 1 is heated by this hot air coming from the room 2. In this installation, the temperature the liquid in the chamber 10 of each device 1 is less than the temperature of the hot air coming from the room 2. The heat exchanger 3 can be any known type of heat exchanger allowing a heat exchange between two fluids, in particular without bringing the two fluids into direct contact.
    [0012] The use of this heat exchanger 3 advantageously allows heating of the air at the outlet of the devices 1 with hot air from the room, and thus makes it possible to reuse a portion of the calories of this hot air and operate with a liquid temperature in the devices 1 which is lower. This reduces the energy consumption. By way of non-limiting example, in a particular variant embodiment, the temperature of the air introduced into the chamber 10 was less than 15 ° C., and for example less than 0 ° C., and the rate of relative humidity of this air was for example about 90% -100%. The temperature of the liquid in the enclosure 10 was maintained at about 15 ° C. The temperature of the air at the outlet of each device 1 was thus about 15 ° C. The temperature of the air at the outlet of the air heater 4 and at the entrance to room 2 was about 22 ° C. The temperature of room 2 was maintained at about 19 ° C with a relative humidity of this air for example of about 60%. FIG. 6 schematically shows a cooling (air-conditioning) and / or dehumidification installation of a room 2. This installation comprises one or more devices 1 for producing a cooled air flow, of the type described in FIG. example of the device of Figure 1 operating by blowing. In another variant, it is nevertheless also possible to implement devices 1 of the type 10 of Figure 4 operating by suction. The number of devices 1 for producing a cooled air flow will depend in particular on the air flows of the devices 1 and the volume of the room 2. The devices 1 will be judiciously distributed in the volume of the room 2. Each device 1 is arranged in the room 2 so that the air 15 which is introduced into the chamber 10 of the device 1 is hot air from outside the room. The installation further comprises a heat exchanger 3 'which is interposed between the air compressor 120 of each device and the enclosure 10 of each device 1, such that the hot air coming from outside the room 2 crosses said heat exchanger 3 ', 20 and is introduced into the chamber 10 of each device 1. The installation also comprises air recycling means 5 for renewing the air in the room by sucking and the pushing outside the room 2, so as to maintain the temperature of the air in the room at a preset set temperature. This recycled cold air 25 from room 2 (FIG. 6 / branch 51) is sent into the heat exchanger 3 ', and passes through said heat exchanger 3, so that the hot air coming from outside, before its introduction in the chamber 10 of each device 1, is cooled by this recycled cold air from the room 2. In this installation, the temperature of the liquid in the chamber 10 of each device 1 is lower than the temperature of the cold air from local 2.
    [0013] The heat exchanger 3 'can be any known type of heat exchanger allowing a heat exchange between two fluids, in particular without direct contact of the two fluids. The implementation of this heat exchanger 3 'advantageously allows a pre-cooling of the air before its introduction into the chamber 10 of each device 1 with air from the room 2, and thus allows reuse a part of the calories of this air. This reduces the energy consumption. By way of nonlimiting example, in a particular variant of implementation, the temperature of the outside air introduced into the exchanger 3 'by the air compressor 120 was greater than 15 ° C., and for example from order of 32 ° C, and the relative humidity of this air was for example about 40%. The temperature of the liquid in the enclosure 10 was maintained at about 15 ° C. The temperature of the air at the outlet of each device 1 was thus about 15 ° C. The temperature of room 2 was maintained at about 22 ° C. Referring to Figure 7, the device 1 of the invention can also be used in an installation for controlling and automatically maintain the relative humidity in a room 2 or equivalent.
    [0014] The incoming air flow F is captured by the device 1 outside the room 2, passes through the device 1, so as to be humidified or dehumidified, and the outgoing air flow F 'moistened or dehumidified is introduced into the room 2, possibly after being mixed with ambient air captured in the room 2 (Figure 7 / Airflow F ").
    [0015] The relative humidity RH in the room is measured by means of at least one hygrostat type humidity sensor 6, which is positioned in the room outside the incoming airflow F 'or F ". The device 1 is equipped with means 11 for controlling the temperature of the liquid volume V in the device 1, which automatically adjust the temperature of the liquid volume V in the device 1 as a function of the relative humidity (RH) measured by the sensor humidity 6 in the room 2 and a humidity setpoint (HRcons) The airflow F 'leaving the device 1 is introduced into the room 2, possibly by being mixed with air A coming from inside the 2. The means for controlling the liquid volume temperature V 5 are designed such that the temperature of the liquid volume V is automatically raised to a value greater than the temperature of the air flow F entering the device 1 , when the relative humidity HR is measured by the sensor 6 is less than the humidity setpoint (HRcons); a more humid air flow F 'is thus produced, the absolute humidity (weight of water per volume of air) being greater than the absolute humidity of the air flow F entering the device 1, and whose temperature is about the temperature of the liquid volume V and is greater than the temperature of the air flow F entering the device 1. The incoming air flow F 'thus allows to humidify the room 2. The means the liquid volume temperature control valve V is furthermore designed so that the temperature of the liquid volume V is automatically brought to a value lower than the temperature of the air flow F entering the device 1, when the relative humidity HR measured by the sensor 6 is greater than the humidity setpoint (HRcons); a less humid air flow F 'is thus produced whose absolute humidity (weight of water per volume of air) is less than the absolute humidity of the air flow F entering the device 1, and of which the temperature is about the temperature of the liquid volume V and is lower than the temperature of the airflow F entering the device 1. Alternatively, it is also possible that the incoming airflow F is 25 in all or Part taken by the device 1 inside the room 2. Alternatively, it is also possible to heat or cool by any means of heating or cooling the air flow (F 'or F ") entering the room 2 without changing its absolute humidity so as to bring it to a preset temperature.
    [0016] It is also possible to replace the sensor 6 of FIG. 7 by a sensor 6 positioned in the air flow (F 'or F ") entering the room 2 and measuring the absolute humidity of said airflow. this case is introduced into the room 2 a flow of air (F 'or F ") whose absolute humidity is automatically controlled with respect to a humidity setpoint by automatically adjusting the temperature of the volume of liquid contained in the device 1.5
    权利要求:
    Claims (4)
    [0001]
    REVENDICATIONS1. Device (1) for producing an air flow (F ') comprising an enclosure (10), which is intended to contain a volume of liquid (V), and which comprises at least one air outlet opening (101), air injection means (12) for creating and passing an incoming airflow (F) from outside the enclosure into a liquid volume (V) contained in the chamber, by introducing said flow of air (F) entering said liquid volume (V) below the surface of said liquid volume (V), so that a flow of air ( F ') exiting, treated by direct contact with the volume of liquid, is discharged outside said chamber through the air evacuation opening (101) of the enclosure, characterized in that the enclosure comprises one or more baffles (14; 14 '; 14 ") which are interposed between the liquid volume (V) and said discharge opening (101), and which make it possible to circulate the flow of air (F') leaving the liquid volume up to the discharge opening (101), by making it undergo one or more changes of direction, so as to prevent the projection of liquid through the air evacuation opening (101).
    [0002]
    2. Device according to claim 1, wherein each baffle (14, 14 ', 14 ") is a plate which is fixed inside the enclosure being in sealing contact over its entire periphery with the enclosure (10). ), and which comprises at least one through opening (141) for the passage of the air flow (F ') out through the plate.
    [0003]
    3. Device according to claim 2, comprising a plurality of baffles (14, 14 ', 14 ") whose through openings (141) are not aligned with the air evacuation opening (101) of the enclosure (10). ).
    [0004]
    4. Device according to any one of the preceding claims, wherein the enclosure (10) comprises an upper wall (10a), a bottom wall (10b) and a side wall (10c) connecting the upper wall (10a) and the bottom wall (10b), and wherein the inlet opening (100) and the discharge opening (101) are formed in the upper wall (10a) of the enclosure (10). Device according to any one of the preceding claims, comprising temperature control means (11) which automatically enable the temperature of said volume of liquid (V) to be maintained in the enclosure (10) at a predefined temperature (). Device according to claim 5, wherein the means (11) of temperature control allow a renewal of the liquid in the chamber (10), so as to automatically maintain in the chamber (10) a predetermined volume of liquid (V) at a preset temperature (). Device according to any one of the preceding claims, wherein the air injection means (12) comprise a tube (121) which is positioned inside the enclosure (10), which is connected to the an air intake opening (100), and which has an air outlet (121b) immersed in the liquid volume. An apparatus according to claim 6, wherein each baffle 20 (14, 14 ', 14 ") has a through opening (140) for passage of the tube (121), and the tube (121) is passed through said through opening ( 140) of each baffle (14, 14 ', 14 ") being in sealing engagement over its entire outer periphery with the baffle at each through aperture. 9. Device according to any one of the preceding claims, wherein the air injection means (12) make it possible to introduce the flow of air (F) entering the volume of liquid to a depth (H1). between 20mm and 80mm. 10. Device according to any one of the preceding claims, wherein the air injection means (12) comprise an air compressor (120), which is outside the chamber (10), and5. 6. 7. 8.wherein the outlet can be connected or connected to the air inlet opening (100) of the enclosure (10). 11. Device according to any one of the preceding claims, wherein the air injection means (12) comprise an air compressor (120), which is outside the enclosure (10), and whose inlet can be connected to or connected to the exhaust air opening (101) of the enclosure (10). 12. Device according to any one of claims 1 to 9, wherein the air injection means (12) comprise a single air compressor (120), which is outside the enclosure (10). ), and the device has two modes of operation: a first mode of operation in which the output of the compressor (120) can be connected to or connected to the air inlet opening (100) of the enclosure (10); ), and a second mode of operation in which the inlet of the compressor (120) can be connected to or connected to the air exhaust opening (101) of the enclosure (10). 13. Device according to any one of claims 10 to 12, wherein the air compressor is centrifugal type. 14. Device according to any one of claims 10 to 13, wherein the air compressor (120) allows heating of the air passing through the air compressor with a temperature gradient AT of at least 2. ° C. 15. Device according to any one of the preceding claims, wherein the air injection means (12) can create and introduce said air flow (F) with an air flow of at least 100m3 / h. 16.Dispositif according to any one of the preceding claims, comprising means (11) for controlling the temperature of the liquid volume (V), which adjust the temperature of the volume of liquid contained in the chamber (10) in function at least a preset hygrometry setpoint (HRcons) so as to automatically adjust the absolute humidity of said airflow (F ') leaving the enclosure (10). 17. Device according to claim 16 comprising at least one humidity sensor (6), and wherein the means (11) for controlling the temperature of the liquid volume (V) make it possible to adjust the temperature of the liquid volume contained in the enclosure (10) as a function of the humidity measured by the humidity sensor (6) and at least a predefined hygrometry setpoint (HRcons). 18. A method of producing an air flow by means of the device (1) referred to in any one of the preceding claims, wherein the enclosure (10) of the device (1) contains a volume of liquid, and in particular a volume of water. 19. The method of claim 18, wherein the height (H + H1) of the liquid volume (V) is less than 200mm, and preferably of the order of 100mm. 20. The method of claim 18 or 19, wherein the temperature of the liquid volume (V) is maintained at a predetermined temperature (Thquide) which is different from the temperature (Tinitiale) of the air flow (F) entering the chamber. enclosure (10). 21. The method of claim 20 for producing a heated air flow (F '), and wherein the temperature (Thquide) of the liquid in the chamber (10) is greater than the temperature (Tinitiaie) of the flow of air (F) entering the enclosure (10). 22. The method of claim 21, wherein the temperature of the heated air flow (F ') is substantially equal to or slightly greater than the liquid temperature (Tliquide). 23. The method of claim 20, for producing a cooled air flow and wherein the liquid temperature (Thquide) is lower than the temperature (Tinitiale) of the air flow (F) entering the enclosure (10) .24. The method of claim 23, wherein the cooled air flow temperature (F ') is substantially equal to the liquid temperature (Tiiquid). 25. A method according to any one of claims 18 to 24, wherein the flow rate of the air flow (F) entering the chamber (10) is at least 100m3 / h. 26. A method according to any one of claims 18 to 25, wherein the ratio between the flow rate of air entering the chamber (10) and the volume (V) of liquid contained in the chamber is greater than 104h- 1. 27. A method according to any one of claims 18 to 26, wherein the air flow (F) from outside the enclosure (10) and entering the enclosure (10) comprises particles and or pollutants, and during which at least part of these particles and / or pollutants is captured in the liquid contained in the chamber (10). 28. Installation for heating and / or cooling and / or humification and / or dehumidification of a room (2), and comprising at least one device (1) which is referred to in any one of claims 1 17, and which is arranged such that the air that is introduced into the chamber (10) of the device (1) is air from outside the room (2). 29. Installation according to claim 28, for heating or humidifying a room (2), further comprising a heat exchanger (3) connected to the enclosure (10) of the device (1), so that the heated air coming from the enclosure (10) passes through said heat exchanger (3), before being introduced inside the room (2), and means (5) for recirculating air which make it possible to supplying the heat exchanger (3) with recycled air from the local interior (2), so that air from the device (1) and passing through the heat exchanger (3) is heated bythis recirculated air from the interior of the room (2). 30. Installation according to claim 29, further comprising an air heating device (4) interposed between the heat exchanger (3) and the local interior (2), so as to preheat the air from the device. (1) and passing through the heat exchanger (3) before its introduction into the room (2). 31. Installation according to claim 28, for cooling or dehumidifying a room (2), further comprising a heat exchanger (3 ') connected to the enclosure (10) of the device (1), and means ( 5) for recycling the air to the heat exchanger (3 ') with recycled air from the local interior (2), so that the air introduced into the chamber ( 10) of the device (1) is previously cooled, through the heat exchanger (3 '), said recycled air from the interior of the room (2). 32. Use of one or more devices (1) according to any one of claims 1 to 17, for heating a room or for cooling a room or for humidifying a room or for dehumidifying a room. 33. Use according to claim 32 wherein the room is a greenhouse.
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    同族专利:
    公开号 | 公开日
    JP2017503144A|2017-01-26|
    WO2015086979A1|2015-06-18|
    CA2932511A1|2015-06-18|
    SG11201604744TA|2016-07-28|
    AU2014363233B2|2019-03-07|
    CN105934643A|2016-09-07|
    KR20160096106A|2016-08-12|
    DK3080537T3|2020-01-06|
    CN105934643B|2018-06-19|
    ES2763227T3|2020-05-27|
    EP3080537A1|2016-10-19|
    US11035614B2|2021-06-15|
    ES2875876T3|2021-11-11|
    PT3080537T|2020-01-09|
    DK3614085T3|2021-06-21|
    PL3614085T3|2021-10-04|
    EP3080537B1|2019-11-13|
    EP3614085A1|2020-02-26|
    PT3614085T|2021-06-21|
    FR3014549B1|2019-03-22|
    AU2014363233A1|2016-06-23|
    BR112016013051B1|2021-02-09|
    RU2668304C1|2018-09-28|
    FR3014548A1|2015-06-12|
    US20170010044A1|2017-01-12|
    EP3614085B1|2021-05-19|
    FR3014548B1|2018-11-30|
    PL3080537T3|2020-06-01|
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    法律状态:
    2015-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2016-09-27| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-06| CL| Concession to grant licences|Name of requester: DALKIA, FR Effective date: 20161205 |
    2017-09-21| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-17| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-19| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-14| PLFP| Fee payment|Year of fee payment: 7 |
    2021-09-22| PLFP| Fee payment|Year of fee payment: 8 |
    2021-12-17| RL| Termination of a licence|Name of requester: DALKIA, FR Effective date: 20211108 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1362386A|FR3014548B1|2013-12-11|2013-12-11|PROVIDING THE PRODUCTION OF AN AIR FLOW WHOSE TEMPERATURE IS CONTROLLED BY THERMAL EXCHANGE WITH A LIQUID AND WITH DIRECT CONTACT OF THE AIR FLOW AND THE FLUID|
    FR1362386|2013-12-11|
    FR1460141A|FR3014549B1|2013-12-11|2014-10-22|DEVICE FOR PRODUCING AN AIR FLOW THROUGH A VOLUME OF LIQUID|FR1460141A| FR3014549B1|2013-12-11|2014-10-22|DEVICE FOR PRODUCING AN AIR FLOW THROUGH A VOLUME OF LIQUID|
    DK19201479.3T| DK3614085T3|2013-12-11|2014-12-09|DEVICE FOR CREATING AN AIR FLOW THROUGH A LIQUID VOLUME|
    PT148308117T| PT3080537T|2013-12-11|2014-12-09|Method for producing a stream of air|
    PL14830811T| PL3080537T3|2013-12-11|2014-12-09|Method for producing a stream of air|
    CN201480073981.0A| CN105934643B|2013-12-11|2014-12-09|Generate the device across the air stream of liquid volume|
    BR112016013051-0A| BR112016013051B1|2013-12-11|2014-12-09|process of producing an air flow, process for heating or cooling or humidifying or dehumidifying an environment and using the process of producing an air flow|
    JP2016558435A| JP2017503144A|2013-12-11|2014-12-09|Device for generating an air flow through a volume of liquid|
    RU2016127087A| RU2668304C1|2013-12-11|2014-12-09|Device for producing stream of air through volume of liquid|
    SG11201604744TA| SG11201604744TA|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    US15/102,799| US11035614B2|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    ES19201479T| ES2875876T3|2013-12-11|2014-12-09|Device for producing a flow of air through a volume of liquid|
    ES14830811T| ES2763227T3|2013-12-11|2014-12-09|Device to produce a current of air through a volume of liquid|
    PL19201479T| PL3614085T3|2013-12-11|2014-12-09|Device for producing a flow of air through a volume of liquid|
    EP19201479.3A| EP3614085B1|2013-12-11|2014-12-09|Device for producing a flow of air through a volume of liquid|
    KR1020167016309A| KR102369104B1|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    PCT/FR2014/053225| WO2015086979A1|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    AU2014363233A| AU2014363233B2|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    CA2932511A| CA2932511A1|2013-12-11|2014-12-09|Device for producing a stream of air through a volume of liquid|
    PT192014793T| PT3614085T|2013-12-11|2014-12-09|Device for producing a flow of air through a volume of liquid|
    EP14830811.7A| EP3080537B1|2013-12-11|2014-12-09|Method for producing a stream of air|
    DK14830811.7T| DK3080537T3|2013-12-11|2014-12-09|PROCEDURE FOR CREATING AN AIR FLOW|
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