| 摘要 |
PURPOSE:To provide a pipe inside cleaning method and its apparatus by which foreign substances adhering to the pipe inside are removed satisfactorily and economically. CONSTITUTION:At least one end of a liquid circulating route 2 is joined by a coupler 1 to the end part of a pipe 6 to be cleaned and a cleaning liquid is circulated by a pump 3 in liquid circulating routes 2, 5 and the pipe 6 to be cleaned. Foreign substances in the cleaning liquid are separated by a filter 4 installed in the liquid circulating route 2. |
