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    • 8. 发明公开
    • MEMBRANE ELEMENT SEALING MATERIAL HOLDING MEMBER AND MEMBRANE ELEMENT
    • 薄膜薄膜薄膜 - 薄膜薄膜
    • EP2025389A1
    • 2009-02-18
    • EP07742074.3
    • 2007-04-20
    • Nitto Denko Corporation
    • UDA, YasuhiroBEPPU, MasashiFUJIOKA, HirokiNISHIDA, YuujiCHIKURA, ShinichiMATSUDA, HidekiISHII, Katsumi
    • B01D63/00B01D63/10
    • B01D63/106B01D2313/04Y02A20/131
    • A membrane element sealing material holding member that even when the dimension of outer diameter of center tube varies, enables holding of the center tube in the center and further enables easy insertion of the center tube; and a membrane element utilizing the same. The membrane element sealing material holding member comprises central opening (19) for insertion of a center tube of spiral membrane element, peripheral orifice (15a) for flowing of a raw liquid into a membrane end portion of membrane element and outer circumferential part (18) for holding of circular sealing material, wherein the central opening (19) has inner circumferential surface (16a) of cylindrical form with a diameter larger than the outer diameter of the inserted center tube, and wherein at three or more positions on the inner circumferential surface (16a), there is provided projection (21) that has sloping face (21 a) on its side of center tube (6) insertion and is deformable at the time of insertion of center tube (6) with an outer diameter larger than that of incircle.
    • 一种膜元件密封材料保持构件,即使当中心管的外径的尺寸变化时,能够使中心管保持在中心,并且还能够容易地插入中心管; 和利用该膜元件的膜元件。 膜元件密封材料保持构件包括用于插入螺旋膜元件的中心管的中心开口(19),用于使原液流入膜元件的膜端部和外周部(18)的外围孔(15a) 用于保持圆形密封材料,其中中心开口(19)具有直径大于插入的中心管的外径的圆柱形形状的内圆周表面(16a),并且其中在内周表面上的三个或更多个位置 (16a)中,设置有在中心管(6)的侧面上具有倾斜面(21a)的突起(21a)插入,并且在中心管(6)的插入时可变形,外径大于 的圆圈。