Ultraviolet sterilization apparatus, ultraviolet sterilization method and ultrapure water production system

摘要

The present invention provides an ultraviolet sterilizing apparatus, an ultraviolet sterilizing method and an ultrapure water producing system which can effectively sterilize water in a microspace such as a branch pipe connecting portion, and comprises a main pipe 13a serving as a flow path of water to be treated, A lens 12 which is watertightly mounted at a position facing an opening of a connection portion of the branch pipe 13b of the main pipe 13a and a branch pipe 13b connected to the main pipe 13a, And the ultraviolet light emitting diode 11 has its light emitting surface 11a directed toward the lens 12 side so that the light emitting surface 11a of the ultraviolet light emitting diode 11 faces toward the lens 12 And the lens 12 is disposed on the rear side of the lens 12 so that the ultraviolet ray is diffused or diffused so that a predetermined amount of the ultraviolet ray emitted from the light source of the ultraviolet irradiating apparatus 1 is irradiated into the opening of the branch pipe 13b Have optical properties that converge It relates to a UV sterilizer.