| 摘要 |
<P>PROBLEM TO BE SOLVED: To automatically measure pump characteristics without stopping operation of a water treatment plant facility. <P>SOLUTION: A control device 10 monitors whether a pumping amount q and an average rotation speed n of suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">N</SB>are within prescribed ranges, and then detects average water level differences h<SB POS="POST">1</SB>-h<SB POS="POST">13</SB>when the pumping amount q and the average rotation speed n of the suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">N</SB>are within the prescribed ranges. The control device 10 stores the detected average water level differences h<SB POS="POST">1</SB>-h<SB POS="POST">13</SB>, and pumping amounts q<SB POS="POST">1</SB>-q<SB POS="POST">5</SB>and average rotation speeds n<SB POS="POST">1</SB>-n<SB POS="POST">3</SB>of corresponding suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">3</SB>in association with each other, and calculates a Q-H curve and a load curve of the suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">N</SB>by using the associated and stored average water level differences h<SB POS="POST">1</SB>-h<SB POS="POST">13</SB>and the pumping amounts q1-q5 of the suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">N</SB>and the average rotation speeds n<SB POS="POST">1</SB>-n<SB POS="POST">3</SB>of the suction pumps P<SB POS="POST">1</SB>-P<SB POS="POST">N</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
