US 11,945,735 B2
Ultraviolet irradiation of a flowing fluid
Maxim S. Shatalov, Columbia, SC (US); and Alexander Dobrinsky, Vienna, VA (US)
Assigned to Sensor Electronic Technology, Inc., Columbia, SC (US)
Filed by Sensor Electronic Technology, Inc., Columbia, SC (US)
Filed on Nov. 15, 2021, as Appl. No. 17/526,227.
Application 17/526,227 is a continuation of application No. 16/369,525, filed on Mar. 29, 2019, granted, now 11,174,174.
Claims priority of provisional application 62/651,157, filed on Mar. 31, 2018.
Prior Publication US 2022/0073377 A1, Mar. 10, 2022
Int. Cl. C02F 1/32 (2023.01)
CPC C02F 1/325 (2013.01) [C02F 2201/005 (2013.01); C02F 2201/3227 (2013.01); C02F 2201/3228 (2013.01); C02F 2201/326 (2013.01); C02F 2209/36 (2013.01); C02F 2209/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a first channel for fluid to flow there through;
a valve located adjacent to the first channel for controlling a flow rate of the fluid flowing through the first channel, wherein controlling the flow rate includes allowing the fluid to flow, varying a rate of flowing fluid, and stopping the fluid from flowing;
a set of ultraviolet radiation sources configured to irradiate an interior of the first channel and the flowing fluid within the first channel or the interior of the first channel without the flowing fluid with ultraviolet radiation, the set of ultraviolet radiation sources configured to operate in a UV-C wavelength range;
a light guide configured to uniformly distribute the ultraviolet radiation, wherein the light guide includes a reflective region;
a second channel separate from the first channel, wherein the flowing fluid flows through the second channel when the fluid does not need to be irradiated with ultraviolet radiation;
a power supply connected to the set of ultraviolet radiation sources;
a filter fluidly connected to the first channel, the filter configured to filter the fluid prior to irradiation, wherein the set of ultraviolet radiation sources are not located in the filter;
a control system including a set of processors configured to control and adjust the flow rate of the fluid flowing through the first channel using the valve and the ultraviolet radiation generated by the set of ultraviolet radiation sources based on a set of current conditions, wherein the set of current conditions affect disinfection of the flowing fluid when the fluid is flowing or affect disinfection of the interior of the first channel when the fluid is not flowing; and
a user input component configured to receive a user input for the control system to adjust the ultraviolet radiation generated by the set of ultraviolet radiation sources.