| 摘要 |
A fluid disinfection apparatus 10 comprises a disinfection chamber 12 through which fluid to be disinfected flows, and an ultra-violet (UV) lamp 14 , operable to output UV light at a germicidal wavelength. First and second fluid inlets 18, 20 and first and second fluid outlets 22, 24 are selectively opened to define a fluid flow path through the disinfection chamber 12 . Cleaning apparatus 16 is provided on the UV lamp 14 and comprises a cleaning head 42 , a drive plate 46 and four vanes 48 . To clean the UV lamp 14 , a fluid flow path from the first fluid inlet 18 , through the disinfection chamber 12 to the second fluid outlet 24 is defined. Fluid entering the disinfection chamber 12 engages the drive plate 16 and vanes 48 , thereby driving the cleaning apparatus 16 along the UV lamp 14 and cleaning the UV lamp 14.
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