| 摘要 |
PROBLEM TO BE SOLVED: To suppress the growth of a bubble in a waste water pipe and to prevent the pipe from being clogged by providing a minute differential pressure detecting means at the right place of the waste water pip and supplying an antifoaming agent into the pipe when a pressure rise in the pipe is detected by the means. SOLUTION: When a bubble is generated in a waste water pipe 1 and the pipe 1 begins to be clogged with the bubble, the pressure in the pipe 1 is slightly increased. The pressure rise is detected by a minute differential pressure detecting means 2, a pump 4 of an antifoaming agent supply means 7 is driven through a control panel 8, and the antifoaming agent stored in a tank 3 is supplied by the pump 4 into the pipe 1 through a pipeline 5. The antifoaming agent conducted to the pipe 1 is jetted into the pipe 1 from plural nozzle holes 6 to eliminate the generated bubble. The antifoaming agent as a surfactant is jetted into the pipe 1 and brought into contact with the generated bubble, hence the bubble is eliminated, and the pipe 1 is never clogged with the bubble.
|
