CYLINDRICAL POROUS FILM MODULE

To provide a cylindrical porous film module, sealing both peripheral zones of a cylindrical porous film as one set of large and small O-rings and capable of fluid- and air-tightly partitioning it into two chambers.SOLUTION: In a cylindrical porous film module 1a, a cylindrical porous film 1 is inserted on a central x-axis of a cylindrical member 6 being a main body of the above module. An O-ring support part 6a of an inward-looking step is provided at the inside of the cylindrical member 6 so that a small O-ring 2 where an inner peripheral face of an O-ring is pressure-bonded to an outside face 2a of the cylindrical porous film 1 or the inner peripheral face of the O-ring is pressure-bonded with a pressing force of a pressing adapter 5 by screwing of a screw cap 7 between the outside face 2a of the cylindrical porous film 1 and an inside face 3a of the cylindrical member 6 is disposed, and a large O-ring 3 where the outer peripheral face of the O-ring is pressure-bonded to the inside face 3a of the member 6 or the outer peripheral face of the O-ring is pressure-bonded by pressing of the pressing adapter 5 by screwing of the screw cap 7 is disposed to radially align in both peripheral zones of the cylindrical porous film 1.SELECTED DRAWING: Figure 1 【課題】円筒状多孔質膜の両辺縁部を大小二Ｏリング一組として封し、円筒状多孔質膜により液密・気密に二つの室に区画可能な、円筒状多孔質膜モジュールの提供。【解決手段】円筒状多孔質膜モジュール１ａの本体となる円筒部材６の中心ｘ軸上に、円筒状多孔質膜１が挿入されており、円筒状多孔質膜１の両辺縁部には、円筒状多孔質膜１の外側面２ａと円筒部材６の内側面３ａとの間に、円筒状多孔質膜１の外側面２ａにＯリング内周面が当接圧着、あるいはねじキャップ７の螺合による押さえアダプター５の押圧でＯリングの内周面が当接圧着する小Ｏリング２が配置されており、更に円筒部材６の内側面３ａにＯリングの外周面が当接圧着、あるいはねじキャップ７の螺合による押さえアダプター５の押圧でＯリングの外周面が当接圧着する大Ｏリング３が放射状にそれぞれ整列して配置されるよう当該円筒部材６の内部に内向き段のＯリング支え部６ａが設けられている。【選択図】図１