Patent ID: 8293185
Filing Date: 2012-10-23
Classification: B01F,B01J,C02F

Abstract:
1. An ultraviolet irradiation apparatus comprising: a conduit having a central axis and adapted to conduct a fluid through its interior along its length from an inlet port to an outlet port downstream of the inlet port; an array of static mixer elements located within the conduit, each static mixer element comprising one or more deflection surfaces adapted to split and rotate said fluid's flow, at least four elongate ultraviolet radiation sources located within the conduit and mutually spaced from each other and from the conduit's inner wall and substantially symmetrically arranged around the central axis of the conduit, the elongate ultraviolet radiation sources extending through apertures in the deflection surfaces of the static mixer elements, and the elongate ultraviolet radiation sources further being mutually spaced and arranged so that fluid may pass through a region located between each adjacent pair of the four ultraviolet radiation sources, wherein the array of static mixer elements and the elongate ultraviolet radiation sources are arranged for relative motion therebetween along longitudinal axes of the ultraviolet radiation sources, whereby the relative motion wipes surfaces of the elongate ultraviolet radiation sources.