| 摘要 |
The invention concerns a seawater desalination system comprising a reverse osmosis cell (12) containing a semi-permeable membrane for performing desalination of the water by passing seawater under pressure through the membrane, a pump (20) for forcing the pressurized seawater through said membrane and a mechanism driving the pump shaft comprising a direct current motor (22) and an alternating current motor (24), the two motors being mounted in position for driving the pump shaft with a belt, and also comprising clutch means for preventing one of the motors from being driven in rotation while the other motor is activated and drives the pump shaft in rotation. |
