| 摘要 |
PURPOSE:To enhance the durable reliability of a hollow yarn filter module, by enhancing the bonding strength between a ring shaped member and the fixing member provided to the opening end of a hollow yarn filter membrane, by providing recessed parts and/or protruded parts to the inner surface of the ring shaped member. CONSTITUTION:In arranging a hollow yarn filter module in a water purifier, recessed parts and/or protruded parts are provided to the inner surface of a ring shaped member 1 functioning as a support member for supporting the whole of the module. The end parts of hollow yarn filter membranes 3 are fixed to the inner surface of the ring shaped member 1 and, in order to allow said membranes 3 to function as filter membranes, a fixing member 2, which functions as the partition member of water to be purified and purified water, is adhered to the hollow yarn filter membranes 3. A large number of the hollow yarn membranes 3 are fixed to the fixing member 2 in a state bundled in a U-shape while the opening ends thereof are held under an open state. By providing the recessed and protruded parts to the inner surface of the ring shaped member 1, the bonding strength between the ring shaped member 1 and the fixing member 2 is enhanced to a large extent by anchor effect or physical inlay effect.
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