| 摘要 |
A modular (10,11) reverse osmosis water treatment assembly has a water inlet (13) with a concentrate outlet (14) and a treated water outlet (15). Water is supplied to the treatment module by a pump (16) with especially a regulator (9) which maintains the water pressure at a level proportional to the water outlet pressure. Water outlet pressure can be adapted in accordance with consumer demand. The pressure regulator has a frequency converter regulating pump pressure in the range 1 to 80 bar. The outlet pressure is monitored by a sensor (24). Water hardness is monitored (1) at the inlet (12). The supply of incoming water is stopped if hardness exceeds a given value. The modules may be operated jointly or separately.
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