SEPARATING APPARATUS FOR LIQUID
    3.
    发明专利

    公开(公告)号:JPS5431087A

    公开(公告)日:1979-03-07

    申请号:JP9642977

    申请日:1977-08-11

    Abstract: PURPOSE:To prevent decrease in quanitty of permeated water due to breakage of semipermeable membrane and to blockade of concave grooves of flow passage material in a semipermeable membrane-using apparatus described in the title, by installing the flow passage material, having jagged surface, for supporting semipermeable membranes in the permeated liq. flow passage, and by placing a pr porous sheet material interventing between the semipermeable membrane and the passage material.

    SEPARATING UNIT FOR LIQUID
    4.
    发明专利

    公开(公告)号:JPS5417383A

    公开(公告)日:1979-02-08

    申请号:JP8194977

    申请日:1977-07-11

    Abstract: PURPOSE:To provide a separating unit for liq. which shows no decrease in water-making power, and which can make pure water for use in electronics industry, by constituting the material for flow path, through which permeating liq. passes, of cloth of a structure formed by combining skeletons of a kind of polymer with an adhesives of another polymer.

    LIQUID SEPARATOR
    8.
    发明专利

    公开(公告)号:JPS6034702A

    公开(公告)日:1985-02-22

    申请号:JP8368384

    申请日:1984-04-27

    Abstract: PURPOSE:To prevent the deformation of a membrane along the grooves of a passage material when pressed against the passage material with high pressure, and to make the membrane difficult to break by interposing a porous sheet- shaped material between the semipermeable membrane and the uneven passage material in a spiral module. CONSTITUTION:The permeated liquid, after passing through a reverse osmosis membrane 13', is allowed to pass through small holes 22 of a porous sheet- shaped material 11 and further through grooves 21 provided on the surface of a passage material 14, and introduced into a hollow space 8. The reverse osmosis membrane 13' is pressed against the flat surface of the porous sheet-shaped material 11 consisting of a substance having rigidity while the reverse osmosis is carried out. Since the surface of the sheet-shaped material 11 is only scattered with the small holes 22, the reverse osmosis membrane 13' is deformed by compression due to the pressure as the whole body, but not deformed locally and strongly.

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