| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cleaning apparatus which prevents a drop in the measurment accuracy of the concentration of residual chlorine and which extends the cycle interval of an inspection maintenance operation to be longer, by a method wherein the apparatus as a whole is maintained to be always clean. SOLUTION: In this cleaning apparatus, a water-collecting device 1 which collects a sample as discharge water from a river water discharge conduit is provided, and a residual chlorine analyzer 2 which measures residual chlorine in the sample as the discharge water collected by the water collecting device 1 is provided. In the cleaning apparatus, a cleaning-water supply means 4 is provided, a measuring-tank cleaning means to which cleaning water is introduced from cleaning-water supply means 4 and by which the inside of a cleaning tank 24 installed at the residual chlorine analyzer 2 and a measuring electrode are cleaned is provided, a sand-filter device cleaning means by which the inside of a sand filtration device 22 installed at the residual chlorine analyzer 2 and sand are cleaned is provided, a container 13 which is installed at the watercollecting device 1 is provided, a water-collecting device cleaning means by which a water collecting pump 14 and pipes in respective parts are cleaned is provided, and a control device 6 which controls the respective cleaning means is provided. |
