| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce cost and to save resources by sharing one cleaning apparatus and effectively regenerating a cleaning object hose, and to efficiently clean or remove dirt. <P>SOLUTION: The cleaning method for removing dirts D attached to inner walls of hoses (cleaning object hoses) Ha, Hb, ..., for liquid state material feed, includes a rough cleaning process Sf of circulating for coarse cleaning over a first cleaning time T1 a cleaning solvent Lc at a first pressure P1 forming a flow passage Wf allowing a given amount or more of the cleaning solvent Lc to flow through the cleaning object hoses Ha, etc.; and a main cleaning process Sm of circulating over a second cleaning time T2 the cleaning solvent Lc at a second pressure P2 lower than the first pressure P1 to the cleaning object hoses Ha, etc. subjected to the coarse cleaning, for cleaning the cleaning object hoses Ha, etc. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
