CONCENTRATE ENERGY RECOVERY DEVICE IN REVERSE OSMOSIS PLANTS Russian patent published in 2017 - IPC B01D61/06 B01D61/08 B01D61/12 C02F1/44 

FIELD: machine engineering.

SUBSTANCE: device including at least two supply chambers provided with a separating piston and at least two dynamic valves adjusting the incoming water flows and at least two dynamic valves regulating the outgoing water flows, differing in that the supply chambers are made inside one pressure housing and separated by the separating piston; the separating piston is movable along the axis connecting the supply chambers: the dynamic valves adjusting the incoming flows are made in the form of a fixed wheel with a side opening and a rotary wheel, which portion of the side surface is made in form of guide partitions; the dynamic valves adjusting the outcoming water flows are made in form of two discs with through holes, one of which is fixed, and the other one is rotatable and rigidly connected to the rotary wheel of the corresponding dynamic valve adjusting the incoming flow, and configured to rotate together with it. The hole in the rotary wheel and the corresponding rotating disc is rigidly fixed thereto. The through holes of the rotary wheels and the rotating discs rigidly connected to them, each of dynamic valve is offset with respect to the through holes in the fixed discs.

EFFECT: reduced electric power consumption, simplified device design, improved reliability during operation and reduced capital costs of fabrication.

12 cl, 9 dwg