Air purification wall
AssigneeArcelorMittal France
InventorsLaurent Geron, René Winand, Leila Dehbi
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Abstract
The invention relates to an appliance for the continuous photocatalytic purification of the air in a room, said appliance preferably being in the form of a wall (1) and comprising an external steel structure, an opening (11) for the admission of the air to be processed, an internal metallic framework (4) to which a plurality of UVA lamps (3) are fixed, a photocatalytic filter (2), and an opening (12) for discharging the purified air. The inventive appliance is characterised in that the photocatalytic filter comprises at least one metal grating (2) covered by a film containing titanium dioxide (TiO2), mainly in an anatase phase, in order to maximise the surface of the photocatalyst illuminated by the UVA light.
Claims20
Device for the continuous photocatalytic purification of the air of an inhabited room, in the form of a wall element (1), comprising:
- an external metal structure, preferably made of steel;
- an opening (11) for the intake of air to be treated, located at the bottom of the front part (10) of the wall element (1);
- an internal metal frame (4) to which a series of UVA lamps (3) are attached;
- a filter (2) comprising a grate covered by a film with photocatalytic titanium dioxide (TiO2);
- an opening (12) for the outlet of the purified air, located at the top of the front part (10) of the wall element (1), the airflow inside the device being ensured by natural circulation or forced circulation with at least one fan (5);
- characterised in that said device comprises at least one grate made of expanded metal covered by a film with titanium dioxide (TiO2) mainly in the anatase phase, so as to maximise the surface of the photocatalyst illuminated by the UVA light;
- wherein the at least one grate is arranged vertically, substantially parallel to the external metal structure, and supported only by fixings on the perimeter of the at least one grate.
Dependencies are inferred from the claim text.