Flowing-water sterilization system
AssigneeNikkiso Co., Ltd.
InventorsTetsumi Ochi, Shinya Watanabe, Jin Takano, Takashi Okamoto
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Abstract
Provided is a flowing-water sterilization system that includes a flow channel for passing seawater to be sterilized, and a light source emitting ultraviolet light to irradiate the seawater passing through the flow channel, wherein the light source includes a light-emitting diode that emits light not including infrared light. The light-emitting diode may emit ultraviolet light that has a wavelength of not less than 250 nm and not more than 350 nm and does not include light with a wavelength of not more than 200 nm. The system may further include a cooling unit for cooling the light source.
Claims1
A flowing-water sterilization system, comprising:
- a flow channel for passing seawater to be sterilized comprising a straight pipe;
- a light source provided downstream of the straight pipe, emitting ultraviolet light to irradiate the seawater passing through the flow channel, the light source comprising a light-emitting diode that emits light not including infrared light in the axial direction of the straight pipe;
- a flow rate-detecting unit for detecting a flow rate of the seawater flowing through the flow channel;
- and
- a light output controller that controls light output of the light source according to the flow rate of the seawater detected by the flow rate-detecting unit,
- wherein the light output controller controls the light source to reduce light output with the flow rate of the seawater decreasing, and maintains light output of the light source at a preset minimum value when the flow rate of the seawater is zero.
Dependencies are inferred from the claim text.