| 摘要 |
PROBLEM TO BE SOLVED: To provide an economical method for cleaning a pipe channel and an economical device for cleaning a pipe channel, further enhancing cleaning efficiency in the cleaning method and the cleaning device using sherbet-like fluid.SOLUTION: In a method for cleaning a pipe channel cleaning in the pipe channel 40 by sending sherbet-like fluid 26 into a cleaning area 40a in the pipe channel 40 and flowing the same in the cleaning area 40a and discharging the same, the fluid 26 sent into the cleaning area 40a is reciprocated in the cleaning area 40a. The reciprocating motion is carried out by changing an additive pressure to the fluid 26 sent from a sending in side and/or a discharge side in the pipe channel 40 of the fluid 26. Alternatively, the reciprocating motion is carried out by additionally supplying gas to the fluid 26 and sending it in the pipe channel 40 to bring pressure into a pulsation state. |
