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US 12,083,255 B2Granted
Photocatalytic sanitizing reactor
AssigneesEarth & Sea Group S.r.l., Inpigest S.r.l.
InventorsMichele De Campo, Giuseppe Bavestrello
Life of this patent
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Abstract
A sanitizing photocatalytic reactor suitable for air liquid or liquid fluids includes a reaction region containing a photocatalyst selected from nanotechnological materials of natural light photocatalyst type, which is supported on an inert support or mixed with a plastic material, and an illumination region having white color LED lights, the reaction region further having one or more channels through which the fluids to be sanitized flow.
Claims19
A sanitizing photocatalytic reactor suitable for gaseous or liquid fluids, comprising:
- a reaction region containing a photocatalyst that is a photocatalytic material activated with sunlight, the photocatalyst being distributed on one or more supports made of an inert material or mixed with a matrix made from a plastic material;
- and
- an illumination source oriented so as to emit light radiation beams incident on said photocatalyst distributed on said support, the illumination source being constituted by one or more white color LED lights;
- wherein said reaction region comprises one or more channels through which said fluids to be sanitized flow, said one or more channels being delimited and/or containing said one or more supports for the photocatalyst,
- wherein the sanitizing photocatalytic reactor is shaped as tubular element having a tubular segment, through which a liquid fluid is passing, and inside which the one or more supports for the photocatalyst are provided, the illumination source being provided internally or externally to said tubular element, the tubular element being transparent at least when the illumination source is arranged externally to the tubular element,
- wherein the tubular segment comprises two coaxial tubes of different diameters arranged one inside the other so as to form a channel through which a fluid flow is passing, the channel having an annular section being delimited by the tube having a smaller diameter and by the tube having a larger diameter,
- the tube having the larger diameter being made of the inert material partially or completely covered on an inner surface of the tube by a layer of the photocatalytic material activated by light radiation with a spectrum corresponding to sunlight,
- the tube having the smaller diameter being made of a material transparent to the light radiation that actives the photocatalyst, the tube having the smaller diameter housing in its inside at least one strip of LED lamps placed parallel to a longitudinal extent of the tube having the smaller diameter and adjacent to or on an inner or outer surface of said tube having the smaller diameter,
- wherein the sanitizing photocatalytic reactor is provided in combination with a filtering unit of a liquid fluid, the filtering unit comprising a tubular container, inside which a tubular cylindrical filtering cartridge is provided that comprises mantle walls constituted by a grid, an inner surface of said grid being covered by synthetic fabric with micro-holes, said grid and said synthetic fabric providing supporting surfaces for the photocatalyst,
- wherein inside said filtering cartridge a supporting element is housed for the photocatalyst, the supporting element being coaxial to said filtering cartridge,
- wherein one end of said filtering cartridge is closed and another end of said filtering cartridge is linked to a fluid inlet union,
- wherein the tubular container is closed at one end and is linked to an outlet union at an opposite end, and
- wherein one or more illumination sources are provided that comprise a set of LED lamps that radiate an activating light radiation on surfaces, provided with the photocatalyst of the filtering cartridge, of the support for the photocatalyst provided inside the filtering cartridge and of a layer of the synthetic fabric which covers internally said grid.
10 more elements
A sanitizing photocatalytic reactor suitable for air liquid or liquid fluids, comprising:
- a reaction region containing a plurality of sheets of an inert support, the sheets being placed parallel to one another and equally spaced at a minimum distance from one another of 7.5 mm, thus forming several substantially uniform channels,
- said sheets being covered by a layer of photocatalytic material structured to be activated by solar light radiation and/or by a light radiation generated by a lighting lamp emitting a white color light;
- and
- a supporting region of an illumination source with LED lights emitting a white color light radiation with an opening and a propagation direction of a beam incident against walls of said sheets so as to illuminate said sheets,
- said illumination source being constituted by at least one LED lamp for each channel laterally delimited by two adjacent sheets, said at least one LED lamp being distributed along the illumination source in such a position so as to coincide with a corresponding channel,
- wherein the plurality of sheets comprises at least one first layer of sheets parallel to each other and having sides oriented in a direction of fluid flow and at least one second layer of sheets parallel to each other and having sides oriented in the direction of the fluid flow, the sheets of the first layer having longitudinal axes oriented in anon-parallel direction to longitudinal axes of the sheets in the second layer of sheets, and wherein, for the first layer of sheets and the second layer of sheets, a dedicated illumination source is provided that comprises at least one line or strip of LED lamps, which is oriented in a direction perpendicular to the longitudinal axes of the sheets of the first and the second layer of sheets, said illumination source contributing to an activation of the photocatalytic material.
3 more elements
Dependencies are inferred from the claim text.