| 摘要 |
<p>PURPOSE:To provide an automatic feeding/draining device to perform control prevented from the occurrence of a water hammer during automatic feed drainage. CONSTITUTION:When a feed valve 6 is closed, water is once fed in a tank 11 in a state of full. By closing the feed valve 6 after a feed route 8 is cut off by a ball tap 9, a water hammer is prevented from occurring. In this case, cut-off of the feed route 8 is detected by any one of a timer 17, a priming detecting sensor 18, and a water flow sensor 20.</p> |
