COMBINED AIR PURIFICATION AND COOLING SYSTEM

Abstract

The invention relates to an apparatus (1) for treating the air of a room, making it possible to purify and / or refresh the air, comprising a rigid structure (2) in which a suction system is arranged, the rigid structure (2) comprising at least one suction opening (3) for the ambient air and at least one discharge orifice (4) for the treated air, said at least one suction opening (3) being covered with an evaporative panel (5) permeable to air and located above a water reservoir (6) arranged in the lower part of the rigid structure (2), a pump (7) making it possible to supply water from the reservoir (6) to a water distribution system (8) located above the evaporative panel (8), the water flowing by gravity onto and into the evaporative panel (5).According to the invention, the rigid structure (2) comprises at least three suction openings (3) distributed around a centrifugal fan (9), each of said suction openings (3) being covered by an evaporative panel (5) and a filter, the apparatus comprising a control unit for controlling the pump (7) and the fan (9). Figure for abstract: [Fig 1].

Description

Title of the invention: COMBINED AIR PURIFICATION AND COOLING SYSTEM Technical field

[0001] The present invention relates to the general technical field of air treatment, particularly in industrial premises. The air in such work environments can be highly laden with more or less coarse dust and fine particles and can thus be the cause of illnesses, particularly pulmonary or cardiac illnesses, in employees working in said environments. Solutions for reducing the exposure of employees to these dusts and / or fine particles as much as possible are therefore constantly being sought.

[0002] Furthermore, it may prove advantageous and economical in certain situations to lower the ambient temperature in an industrial premises by avoiding the use of an air conditioning system involving the circulation of a refrigerant fluid.

[0003] The invention relates more particularly to air purification systems and air cooling systems, used more particularly in work areas, industrial or logistics halls. Prior art

[0004] Air purifiers are known which allow air to be drawn from a room through filter elements and the air thus filtered to be discharged into said room. These known purifiers, however, have the disadvantage of being very bulky, especially if a large volume of air must be treated continuously. In addition, these purifiers are often associated with evaporative air cooling systems, further increasing the size of the air treatment means.

[0005] Air cooling systems are also known, which draw ambient air through cooling panels formed from a network of holes. These cooling panels, called evaporative panels (or honeycomb panels), are permanently humidified using a water distribution system. The air passing through these evaporative panels becomes charged with humidity and thus sees its temperature drop, due to the partial evaporation of the water. These systems comprise a submerged pump for recovering the water flowing over the evaporative panels in a reservoir. This water is distributed over the evaporative panels and the reservoir is located under said panels. The water flowing by gravity over and / or into the evaporative panels is then recovered in a reservoir or tank, for the fraction of water not evaporated and not entrained by the air flow.

[0006] These known systems have the disadvantage of being too sensitive to air quality. In fact, the dust and particles contained in the sucked air are deposited on the evaporative panels and are carried by runoff into the reservoir or tank. This results in the formation of sludge in the tank, which causes heating and ultimately premature deterioration of the pump. In addition, the sludge sedimented in the tank must be regularly evacuated. This results in the need to regularly drain the tank of the devices. This emptying requires stopping the device and moving the device to an area for draining the water from the tank. This dirty water must be evacuated and treated if the pollutants it contains are dangerous. Statement of the invention

[0007] The object of the invention therefore aims to overcome the drawbacks of the prior art by proposing a new air treatment device combining air purification and cooling.

[0008] Another object of the invention is to propose a new combined air purification and cooling system whose air purification function can be implemented with or without the air cooling function.

[0009] Another object of the invention is to propose a new combined air purification and cooling device which is efficient, reliable, economical and ecological.

[0010] The objects assigned to the invention are achieved using an apparatus for treating the ambient air of a room making it possible to purify and / or refresh the air, comprising a rigid structure in which is arranged a suction system driven by an electric motor, the rigid structure comprising at least one opening for suction of the ambient air and at least one orifice for discharging the treated air, said at least one suction opening being covered with an evaporative panel permeable to air and located above a water tank arranged in the lower part of the rigid structure, a pump making it possible to supply water from the tank to a water distribution system located above the evaporative panel, the water flowing by gravity onto and into the evaporative panel and a fraction of said water being collected in the tank,characterized in that the rigid structure comprises at least three substantially vertical suction openings distributed around the suction system comprising a centrifugal fan, each of said suction openings being covered upstream of the corresponding evaporative panel with a filtration device, the treatment apparatus also comprising a control unit for controlling the pump and the centrifugal fan.

[0011] According to an exemplary embodiment, the rigid structure comprises four suction openings.

[0012] According to an exemplary embodiment, the filtration device comprises at least one filtration member associated with at least one pre-filtration member.

[0013] According to an exemplary embodiment, the filtration device comprises four filtration members each associated with a pre-filtration member.

[0014] According to an exemplary embodiment, the filtration and pre-filtration members are integrated into a removable filtration box.

[0015] According to an exemplary embodiment, the evaporative panel is integrated or fixed to the removable filtration box.

[0016] According to an exemplary embodiment, the rigid structure comprises in the upper part a fixed or orientable turret, provided with at least one discharge orifice.

[0017] According to an exemplary embodiment, the pump is arranged in a submerged position in the tank.

[0018] The treatment apparatus comprises, for example, a system for treating the water from the tank drawn in by the pump using UV light.

[0019] According to an exemplary embodiment, the rigid structure comprises casters so as to facilitate its movement in the room.

[0020] The treatment apparatus advantageously comprises means for measuring the clogging rate of the filtration device.

[0021] The air treatment device according to the invention has the advantage of being able to implement a function of refreshing the air in a room, without generating sludge in its water tank. Thanks to effective filtration of the sucked air, there is very little dust and particles which accumulate in the tank following the water running over the evaporative panels. The service life and efficiency of the pump are therefore substantially increased. The optimal operation of the treatment device is therefore prolonged, which is particularly advantageous for use in environments with a high level of dust and particles. In addition, it is no longer necessary to frequently empty the water tank.

[0022] The increased reliability of the treatment apparatus according to the invention makes it particularly suitable for use in a controlled atmosphere environment, for example in the food industry, foundries, steelworks, forges, surface treatment industries, the paper, cardboard, packaging and pharmaceutical or electronics industries.

[0023] The treatment apparatus according to the invention is also suitable for continuously treating very large volumes of air, thanks to its construction and thanks to the use of a high-performance centrifugal fan.

[0024] In addition, such a mobile treatment device consumes up to ten times less energy than comparable fixed technology requiring the deployment of a network of air suction and distribution piping.

[0025] The treatment device is also compact and mobile, which makes it perfectly adaptable to all types of premises. The device can advantageously be moved very easily from one area to another or from one room to another.

[0026] The treatment apparatus according to the invention can also be used in cooling-purifying mode, for example in summer, or in purifying mode alone (without cooling the air) during cooler periods. Brief description of the drawings

[0027] Other characteristics and advantages of the present invention will appear more clearly on reading the description which follows, given with reference to the appended drawings, given as non-limiting examples, in which:

[0028] [Fig. 1] is a side view of an exemplary embodiment of a treatment apparatus of air in accordance with the invention,

[0029] [Fig.2] is another side view of an exemplary embodiment of a device for air treatment according to the invention,

[0030] [Fig.3] is a front view of an exemplary embodiment of a treatment apparatus of air in accordance with the invention,

[0031] [Fig.4] is a partial exploded view of an exemplary embodiment of a device for air treatment according to the invention, and

[0032] [Fig.5] is an exploded view of an exemplary embodiment of a facade panel of a air treatment device according to the invention.

[0033] Embodiments of the invention

[0034] Structurally and functionally identical elements present in several distinct figures are assigned the same numerical or alphanumeric reference.

[0035] [Fig. 1] is a side view of an exemplary embodiment of an air treatment apparatus 1 according to the invention constituting a combined air purification and cooling system.

[0036] The treatment apparatus 1 thus makes it possible to treat the ambient air of a room to purify and / or refresh it. The treatment apparatus 1 comprises a rigid structure 2 in which a suction system is arranged.

[0037] The rigid structure 2 comprises at least one suction opening 3 for the ambient air and at least one discharge orifice 4 for the treated air.

[0038] Each suction opening 3 is covered with an evaporative panel 5, permeable to air and located above a water tank 6 arranged in the lower part of the structure. rigid 2. The evaporative panel 5 is for example made up of several layers of treated cellulose which form a network of holes.

[0039] [Fig.2] is another side view of an exemplary embodiment of the treatment apparatus 1 and [Fig.3] is a front view of said treatment apparatus 1.

[0040] [Fig. 4] is a partial exploded view of an exemplary embodiment of the treatment apparatus 1. The latter comprises a pump 7 for supplying water from the water tank 6, a water distribution system 8, of the distribution ramp type, located above the evaporative panel 5. This supply is carried out via pipes 7a and a distributor / connector 7b. The evaporative panel 5 is thus continuously humidified and crossed by an air flow generated by the suction system and whose humidity increases and whose temperature decreases.

[0041] The water thus flows by gravity onto and into the evaporative panel 5 and a fraction of said water is collected again in the water tank 6.

[0042] The rigid structure 2 comprises at least three suction openings 3 or advantageously 4 suction openings 3 which are substantially vertical and distributed around the suction system.

[0043] The suction system comprises a centrifugal fan 9, with a horizontal axis and driven by an electric motor 10.

[0044] Each of the suction openings 3 being covered, upstream in the direction of circulation of the sucked air, by the corresponding evaporative panel 5 of a filtration device 11.

[0045] The treatment apparatus 1 also comprises a control unit for controlling on the one hand the pump 7 and on the other hand the centrifugal fan 9 via the electric motor 10.

[0046] [Fig. 5] is an exploded view of an exemplary embodiment of a front panel 12 of the treatment apparatus 1 intended to cover the suction opening 3. The front panel 12 comprises the filtration device 11 and the evaporative panel 5.

[0047] The filtration device 11 comprises at least one filtration member 11a associated with at least one pre-filtration member 11b. The filtration member 11a is for example a polyester filter of quality F7 (ISO PM 1 60%) to HEPA H14.

[0048] The prefiltration member 11b is for example a polyester filter G3 (ISO Coarse 50% to F7 (ISO PMI 60%).

[0049] According to another exemplary embodiment, the filtration 11a and pre-filtration 11b members are integrated into a removable filtration box 11c. The evaporative panel 5 is for example mounted on a support structure 13 integrated or fixed to the removable filtration box 11c.

[0050] According to an exemplary embodiment of the treatment apparatus 1, the rigid structure 2 comprises in the upper part a turret 14, fixed or orientable, provided with at least one discharge orifice 4.

[0051] Advantageously, the pump 7 is arranged in a submerged position in the tank 6.

[0052] According to an exemplary embodiment, the treatment apparatus comprises a system for UV treatment of the water from the reservoir 6 sucked in by the pump 7.

[0053] The water level in the tank 6 is for example controlled by a level detector 15, which controls the water supply from a connection 16 to a water network as soon as the water level falls below a determined threshold.

[0054] According to an exemplary embodiment, the rigid structure 2 comprises casters 17 so as to facilitate its movement and / or its orientation in the room.

[0055] According to an exemplary embodiment, the apparatus 1 comprises a means for measuring the clogging rate of the filtration device 11. Such a measurement of the clogging is for example implemented by a differential pressure measurement using pressure sensors arranged upstream and downstream of the filtration device 11.

[0056] The treatment apparatus according to the invention can, for example, be sized to provide a maximum flow rate of 15,000 m3 / h, which makes it possible to treat premises with a surface area ranging from 70 m2 to 400 m2 and whose atmosphere contains dust, particles and / or fumes.

[0057] It is obvious that the present description is not limited to the examples explicitly described, but also includes other embodiments and / or implementations. Thus, a described technical characteristic is likely to be replaced by an equivalent technical characteristic, without departing from the scope of the present invention as defined by the claims.

[0058] .

Claims

Claims

1. Apparatus (1) for treating the ambient air of a room, making it possible to purify and / or refresh the air, comprising a rigid structure (2) in which is arranged a suction system driven by an electric motor (10), the rigid structure (2) comprising at least one suction opening (3) for the ambient air and at least one discharge orifice (4) for the treated air, said at least one suction opening (3) being covered with an evaporative panel (5) permeable to air and located above a water tank (6) arranged in the lower part of the rigid structure (2), a pump (7) making it possible to supply water from the tank (6) to a water distribution system (8) located above the evaporative panel (5), the water flowing by gravity onto and into the evaporative panel (5) and a fraction of said water being collected in the tank (6),characterized in that the rigid structure (2) comprises at least three suction openings (3) which are substantially vertical and distributed around the suction system comprising a centrifugal fan (9), each of said suction openings (3) being covered upstream of the corresponding evaporative panel (5) with a filtration device (11), the treatment apparatus (1) also comprising a control unit for controlling the pump (7) and the centrifugal fan (9).,

2. Air treatment apparatus (1) according to claim 1, characterized in that the rigid structure (2) comprises four suction openings (3).

3. Air treatment apparatus (1) according to claim 1 or 2, characterized in that the or each filtration device (11) comprises at least one filtration member (11a) associated with at least one pre-filtration member (11b).

4. Air treatment apparatus (1) according to claim 3, characterized in that the filtration (11a) and pre-filtration (11b) members are integrated into a removable filtration box (11c).

5. Air treatment apparatus (1) according to claim 4, characterized in that the evaporative panel (5) is integrated or fixed to the removable filtration box (11c).

6. Air treatment apparatus (1) according to any one of claims 1 to 5, characterized in that the rigid structure (2) comprises in the upper part a fixed or adjustable turret (14), provided with at least one discharge orifice (4).

7. Air treatment apparatus (1) according to any one of claims 1 to 6, characterized in that the pump (7) is arranged in a submerged position in the tank (6).

8. Air treatment apparatus (1) according to any one of claims 1 to 7, characterized in that it comprises a UV treatment system for the water in the tank (6) drawn in by the pump (7).

9. Air treatment apparatus (1) according to any one of claims 1 to 8, characterized in that the rigid structure (2) comprises casters (17) so as to facilitate its movement in the room.

10. Air treatment apparatus (1) according to any one of claims 1 to 9, characterized in that it comprises means for measuring the clogging rate of the filtration device (11).

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