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US 12,576,383 B2Granted
Multi-reflector photoreactor for controlled irradiation of fluid
AssigneeThe University of British Columbia
InventorsFariborz Taghipour, Babak Adeli Koudehi
Life of this patent
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Abstract
A UV reactor comprises a main chamber extending in a generally longitudinal direction. The main chamber may comprise a UV-LED and a reflective wall located at opposing longitudinal ends of the main chamber. Fluid enters main chamber through a fluid inlet and exits main chamber through a fluid outlet. The fluid inlet may be located at the reflective wall end of the main chamber. The fluid outlet may be located at the UV-LED end of the main chamber.
Claims19
A fluid treatment apparatus comprising:
- a main chamber defined by a body, the main chamber extending in a longitudinal direction;
- a radiation emitter located at a first longitudinal end of the main chamber, the radiation emitter further comprising:
- a reflector cone comprising a reflective surface that defines a reflector cone concavity;
- and
- a radiation source located in the reflector cone concavity;
- the reflective surface of the reflector cone shaped to direct radiation from the radiation source into the main chamber in a direction having at least a component oriented in the longitudinal direction;
- and
- a wall shaped to define a plurality of openings in fluid communication with the main chamber, the plurality of openings providing an inlet for conducting fluid into the main chamber;
- and
- an outlet for conducting fluid out of the main chamber;
- wherein the plurality of openings are at least one of shaped and located to provide non-uniform flow of fluid into the main chamber;
- and
- wherein the plurality of openings in the wall have a cross-section per unit area that increases with distance from the outlet over the entire wall as the wall extends across a cross-section of the body.
10 more elements
A fluid treatment apparatus comprising:
- a main chamber defined by a body, the main chamber extending in a longitudinal direction;
- a radiation emitter located at a first longitudinal end of the main chamber, the radiation emitter further comprising:
- a reflector cone comprising a reflective surface that defines a reflector cone concavity;
- and
- a radiation source located in the reflector cone concavity;
- the reflective surface of the reflector cone shaped to direct radiation from the radiation source into the main chamber in a direction having at least a component oriented in the longitudinal direction;
- and
- a wall shaped to define a plurality of openings in fluid communication with the main chamber, the plurality of openings providing an inlet for conducting fluid into the main chamber;
- and
- an outlet for conducting fluid out of the main chamber;
- wherein the plurality of openings are at least one of shaped and located to provide non-uniform flow of fluid into the main chamber;
- and
- wherein the apparatus comprises a plurality of auxiliary reflectors, each of the auxiliary reflectors disposed, relative to the wall, to partially cover at least one of the plurality of openings, the auxiliary reflectors positioned to provide additional reflection of at least some of the radiation emitted by the radiation emitter which would otherwise pass through the one or more openings, while still permitting fluid communication between the main chamber and the one or more openings.
10 more elements
A fluid treatment apparatus comprising:
- a main chamber defined by a body, the main chamber extending in a longitudinal direction;
- a radiation emitter located at a first longitudinal end of the main chamber, the radiation emitter further comprising:
- a reflector cone comprising a reflective surface that defines a reflector cone concavity, the reflective surface shaped to be paraboloidic over a first portion of the reflective surface and ellipsoidal over a second portion of the reflective surface;
- and
- a radiation source located in the reflector cone concavity;
- the reflective surface of the reflector cone shaped to direct radiation from the radiation source into the main chamber in a direction having at least a component oriented in the longitudinal direction.
3 more elements
Dependencies are inferred from the claim text.