Rinsing membrane of water purifier by reverse osmosis, by storing purified water produced by revers

文件类型：PDF文档
文件大小：179K
This invention is more especially adapted to the purifiers by opposite osmosis without water rejection of domestic use which do not have a circuit of setting to the sewer. It is intended to enable them to function durably with strongly mineral-bearing water thanks to the rinsing with pure water and in closed circuit of the membrane of osmosis after each cycle of production of water. The osmoseurs who do not produce a water rejection do not have circuit of rejection with the sewer, it is thus difficult to carry out a rinsing of their membrane. The device described here accumulates water osmosée in a compartment of variable volume at the beginning of each cycle of production of purified water. At the end of the cycle, this pure water comes to replace that which surrounded the membrane of osmosis previously. Replaced water is recovered in another compartment - he also of variable volume. Recovered water is re-used at the beginning of the cycle of production of pure water according to. Mechanical energy necessary to the transfer of the water of one compartment to the other is accumulated in a suitable elastic system : arises, elastic wall, compressible gas, etc This device can also be used in the osmoseurs with water rejection, in order not to increase the water losses when one wishes to carry out rinsings of the membrane. The goal of the invention is to allow to the osmoseurs small size - and more especially those not producing, or little, of water rejection - to function with strongly mineral-bearing water without risk of scaling of the membrane, that thanks to a rinsing of this membrane to pure water after each cycle of production of water.