| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for cleaning a pipe capable of uniformly removing contamination in a pipe over the whole length of the pipe even if the pipe is relatively long. <P>SOLUTION: For the removal of the contamination in a cleaning pipe 8, workers turn a lever 7A in a direction of an arrow A beforehand to flush water from a water supply pipe 9 in a direction of an arrow B toward into the cleaning pipe 8. Next, by turning an unillustrated power source on, a timer operates, a solenoid valve 5 opens and closes, for example, every one second interval by an output signal from the timer and nitrogen gas 10 from a nitrogen cylinder 2 is intermittently injected into the cleaning pipe 8 through a nitrogen supply pipe 3. As a result of this, numberless foams of nitrogen gas 10 flow in the direction of the arrow B with water while moving about in the cleaning pipe 8 (while storming), and the contamination on the inner surface of the cleaning pipe 8 is removed by the flow of the foam of this nitrogen gas 10 and water. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
