| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a formation water producing apparatus for producing water by an RO (reverse osmosis) method, wherein the increase in the capacity of a storage battery is suppressed even when the supplied electric energy varies. <P>SOLUTION: The formation water producing apparatus is provided with: a first pressurizing part 2A pressurizing raw water; a first reverse osmosis membrane part 3A filtering the pressurized raw water to form intermediate water; a second pressuring part 2B pressurizing the intermediate water; a second reverse osmosis membrane part 3B filtering the pressurized intermediate water to form the formation water; an intermediate water tank 4 disposed between the first reverse osmosis membrane part 3A and second pressuring part 2B and storing the filtered intermediate water; a solar battery panel 5 generating power; a storage battery 7 storing the generated power; and a control part 9 supplying at least a part of the generated power to the storage battery 7, reducing the supply amount of power to any one of the first pressurizing part 2A or second pressuring part 2B when the amount of insolation reduces from a prescribed value, and keeping the supply amount of the power to the other part constant. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
