| 摘要 |
<p>The present invention relates to a piping cleaning device for cleaning the inside of piping (3) installed in building, residence, fountain, structure, etc., in a piping system for transferring liquids such as clean water, cooling water, solution, chemical solution, water liquid, liquid raw material, etc. A liquid storing tank (6), in which is stored a prescribed volume of cleaning solution, is connected to one end of the piping (3), and the other end is connected to a sealed tank (7) for storing the cleaning solution discharged from that end. A liquid feed means (10, 11, 12, 13) is provided for feeding a flow of cleaning solution between the two tanks (6,7) through the inside of the piping (3), so as to clean the piping (3) by alternately repeating the action of feeding and flowing the cleaning solution to the liquid storing tank (6) and the sealed tank (7) through the inside of the piping (3) to make the cleaning solution pass to the entire areas of the piping (3) up to the small pipes (5) at the terminals. <IMAGE></p> |
