Can clear nanofiltration membrane system

The utility model relates to a receive the filter membrane field, can clear nanofiltration membrane system is disclosed, it includes a nanofiltration membrane module (1) and the 2nd nanofiltration membrane module (2), all be connected with on an inlet line (11) and the 2nd inlet line (21) waste pipe (5), first drain pipe (12) and second drain pipe (22) are connected with cleaning tubing (6), be equipped with first inflate ring (7) on the inner wall of an inlet line (11), it inflates ring (8) to be equipped with the second on the inner wall of the 2nd inlet line (21), still include controller (9) and cleaning water tank (10). The utility model discloses a two sets of nanofiltration membrane module's in turn work, guarantee normal filterable condition under, also wash nanofiltration membranemodule, simultaneously, combines the first setting of aerifing circle and second and aerifing the circle, make the production of cleanness rivers to nanofiltration membrane module's impulsive force,increased clean effect, si