| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet irradiation device which can reduce resistance of a flow of water to be treated due to a thermometer. SOLUTION: An ultraviolet irradiation device 1 is used which includes a thermometer 100 provided on an outer periphery inside a lamp housing 4 and at a position where the lamp housing 4 and a cylinder 3 through which water to be treated 2 flows intersect with each other so as to be along a flow of the water to be treated 2. COPYRIGHT: (C)2011,JPO&INPIT |
