| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide hydroponics facilities promoting cleaning of the inside of piping systems while clearing clogging of a supplying nozzle through devising the arrangement of respective piping systems for supplying nutritious liquid in the hydroponics facilities. <P>SOLUTION: The hydroponics facilities have the following structure: a nutritious-liquid supplying pipe 7 is provided with a firsts flow-volume control valve 10 supplying the nutritious liquid by a set amount, and a filter 11 removing foreign matters in the nutritious liquid during a post-process of the first flow-volume control valve 10; the pre-process side of the first flow-volume control valve 10 and the post-process side of the filter 11 are connected to each other via bypasses 12; and the bypass 12 is provided with a second flow-volume control valve 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
