| 摘要 |
The invention concerns a motor-driven inverse-osmosis pumping device having a double piston cylinder arrangement (11, 12), that can be operated externally by bars connected to at least one motor (13). The first arrangement (11) is allocated to a valve arrangement (21) to selectively connect it to an outlet pipe (19) of the solution and to a discharge pipe (36) of the concentrated solution. Both piston cylinder arrangements are connected by pressure and suction valves to an inverse osmosis module (16) with an osmosis membrane (17) allowing the pure liquid to pass through and delivering to a pipe (18) for the purified liquid or the permeate. |
