| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning structure of a distributor in which a treatment performance of a settling tank can be improved during cleaning of the distributor.SOLUTION: A cleaning structure of a distributor includes a takeoff connection part for taking-off treatment water in a tank, and a cleaning part for supplying the treatment water taken-off from the takeoff connection part into the distributor as a cleaning fluid, and further includes a cleaning liquid line for connecting the takeoff connection part and the cleaning part to each other. Thus a temperature difference between the treatment water in the tank and the cleaning fluid is reduced by connection of the takeoff connection part and the cleaning part with the cleaning liquid line directly, therefore, a disturbance of water flow in the tank can be further reduced. In addition, the takeoff connection part takes-off the treatment water in the tank from a position between a first flow outlet on a water surface side of the treatment water and the distributor in a vertical direction, whereby an increasing speed of upflow of the treatment water in the tank can be suppressed. |
