| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pure water production apparatus which can automatically control a constant flow rate at any time regardless of changes in water temperature and back pressure. Ž<P>SOLUTION: The pure water production apparatus includes a desalting chamber inflow line 3 for allowing inflow of water to be treated into a desalting chamber 2a formed within a pair of electrodes, a concentration chamber inflow line 5 for allowing inflow of the water to be treated into a concentration chamber 2b, a feed water pump 14 for supplying the water to be treated to the desalting chamber inflow line 3 and the concentration chamber inflow line 5, a treated water outflow line 4 for allowing outflow of treated water from which ions have been removed in the desalting chamber 2a, a concentrated water discharge line 6 for discharging concentrated water in which ions have been concentrated in the concentration chamber 2b, a flow rate sensor 11 installed in the treated water outflow line 4 to detect the flow rate of the treated water flowing through the treated water outflow line 4, and a control portion for controlling the speed of the feed water pump 14 based on flow rate detection signals of the flow rate sensor 11. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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