| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cleaning method for a water-discharge pipe capable of easily removing a contaminant deposited and fixed to an inner peripheral wall of the water-discharge pipe, and an apparatus. <P>SOLUTION: Cleaning in the water-discharge pipe is performed by the step for intruding a bulk of ice 21 into the water-discharge pipe 2 and the step for conveying the bulk of ice 21 intruded into the water-discharge pipe 2 to the downstream of the water-discharge pipe 2 by high pressure cleaning water 31 and peeling off/destroying the contaminant fixed to the inside of the water-discharge pipe 2 by the bulk of ice 21. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
