REVERSE OSMOSIS MEMBRANE FILTER

摘要

PROBLEM TO BE SOLVED: To provide a reverse osmosis membrane filter that can reduce dispersion of the amount of permeable water in an axial direction of a water collecting pipe, regardless of the number and length of the water collecting pipe.SOLUTION: A reverse osmosis membrane filter comprises: a water collecting member that has at least one water collecting pipe and a plurality of sections each of which has a plurality of water collecting holes; at least one filter assembly that is arranged around a plurality of the sections and has a filter material made of a reverse osmosis membrane; at least one insertion pipe that is disposed in the water collecting member and forms a plurality of permeable water passages corresponding to the plurality of sections inside the water collecting member, in cooperation with at least one seal member; and a pressure controller for making a pressure of at least one permeable water passage among the plurality of permeable water passages higher than the pressure of another water permeable passage.