| 摘要 |
The invention relates to a method and device for continuously desalinating water by reverse osmosis, particularly for desalinating sea water, according to which: salt water (10) is introduced by a delivery pump (1) into a pressu re compensation device (2) while under a first pressure (p1); from the pressure compensation device (2), salt water (11) is continuously introduced into a membrane module (3) while under a second increased pressure (p2) and, inside of the membrane module, the salt water is separated by a membrane (6) into desalinated water (12) and concentrated salt water (13); the concentrated sa lt water (13) discharged from the membrane module (3) is continuously introduce d into the pressure compensation device (2) while under appropriately the seco nd pressure (p2) and is used therein for increasing the pressure of the salt water (10) introduced into the pressure compensation device (2) up to approximately the second pressure (p2) and for introducing the salt water (1 1) into the membrane module (3). In order to prevent malfunctions in the operation of and, possibly, damages to the membrane (6) caused by a reduced flow over the membrane surface, the invention provides that a continuous flo w of the salt water (11) introduced into the membrane module (3) is maintained over the membrane surface of the membrane (6) by means of water discharged from a reservoir (15; 403; 20).
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