# US 8,541,758 B1 · Ultraviolet reactor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,541,758 B1 - Document ID: US8541758B1 - Status: Granted - Kind: B1 - Application number: 13/525,968 - Filed: 2012-06-18 - Granted: 2013-09-24 - Earliest claimed: 2011-06-17 - Assignees: Aqua Treatment Services, Inc. - Applicants: John R. Filson, II; Jesse Rodriguez - Inventors: John R. Filson, II; Jesse Rodriguez - Web page: https://patentgrep.com/patent/US8541758B1 ## CPC - C02F 1/325: {Irradiation devices or lamp constructions} - A61L 9/20: Ultraviolet radiation - C02F 1/32: with ultraviolet light - C02F 2201/3227: Units with two or more lamps - C02F 2201/328: Having flow diverters (baffles) - C02F 2301/024: Turbulent - C02F 2301/026: Spiral, helicoidal, radial - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) ## Abstract An ultraviolet reactor for irradiating a flow of fluid includes a set of UV lamps and baffles spaced along the ramps. The baffles generate helical flow of the fluid flowing along the lamps to enhance exposure of microorganisms carried in the fluid to UV radiation. ## Claims ### Claim 1 An ultraviolet reactor for irradiating a flow of fluid with ultraviolet light, the reactor comprising: a chamber comprising a tubular housing and an end wall, the housing defining an interior and extending along a longitudinal axis between upper and lower ends, the end wall closing the lower end of the housing, an inlet opening adjacent the lower end of the housing and a discharge opening adjacent the upper end the housing, the housing axis defining a radial direction perpendicular to the axis; a plurality of ultraviolet lamps and a plurality of elongate rods in the housing, each lamp and each rod extending along a respective axis parallel with the housing axis; a plurality of baffles in the housing, the baffles longitudinally spaced apart from one another and attached to the rods, the baffles comprising a lowermost baffle closest to the end wall, the rods extending through the other one or more baffles to the lowermost baffle; each baffle comprising an annular body disposed generally transverse to the longitudinal axis and a plurality of blades extending in the radial direction away from the body, the blades circumferentially spaced apart around the body, each blade inclined or twisted with respect to the body; each baffle body comprising a first set of through-holes extending through the baffle body, the lamps extending through and closely received in the first set of holes whereby the baffle body resists radial motion of the lamps passing therethrough, and the blades of each baffle cooperating with one another to urge rotational flow of fluid flowing in the longitudinal direction from the inlet opening towards the upper end of the housing that impinges the blades. ### Claim 2 (depends on 1) The ultraviolet reactor of claim 1 wherein each baffle body defines a plane transverse to the longitudinal axis and the blades of the baffle are inclined at an angle of about 25 degrees with respect to the plane. ### Claim 3 (depends on 1) The ultraviolet reactor of claim 1 wherein the plurality of baffles comprises an uppermost baffle closest to the upper end of the housing, the discharge opening between the uppermost baffle and the upper end of the housing. ### Claim 4 (depends on 1) The ultraviolet reactor of claim 1 wherein the inlet opening extends through the end wall, and the reactor further comprises a conical flow diverter attached to the lowermost baffle and opposite the inlet opening. ### Claim 5 (depends on 4) The ultraviolet reactor of claim 4 wherein the conical flow diverter blocks the opening surrounded by the lowermost baffle. ### Claim 6 (depends on 1) The ultraviolet reactor of claim 1 wherein the axes of the rods and lamps are arranged along a common circle. ### Claim 7 (depends on 6) The ultraviolet reactor of claim 6 wherein the rods and lamps alternate with one another around the common circle. ### Claim 8 (depends on 1) The ultraviolet reactor of claim 1 comprising a removable end plate closing the upper end of the housing, the rods and lamps fixed to the end plate for conjoint movement with the end plate when removing the end plate from the housing. ### Claim 9 (depends on 1) The ultraviolet reactor of claim 1 wherein the baffles are longitudinally spaced at an equal pitch. ### Claim 10 (depends on 1) The ultraviolet reactor of claim 1 wherein the ultraviolet lamps are arranged around the longitudinal axis of the housing, the lamps disposed closer to the axis than to the housing. ### Claim 11 (depends on 1) The ultraviolet reactor of claim 1 wherein there is clearance between the blades of each baffle and the housing. ### Claim 12 (depends on 1) The ultraviolet reactor of claim 1 wherein the blades of each baffle extend towards the upper end of the housing as they extend away from the baffle body. ### Claim 13 (depends on 1) The ultraviolet reactor of claim 1 wherein the body of each baffle includes a second set of holes, the rods extending through the second set of holes. ### Claim 14 (depends on 1) The ultraviolet reactor of claim 1 wherein the baffles are welded to the rods.