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    • 9. 发明授权
    • Spiral reverse osmosis membrane element, method of manufacturing the same, and its use method
    • 螺旋反渗透膜元件及其制造方法及其使用方法
    • US08608964B2
    • 2013-12-17
    • US11216051
    • 2005-09-01
    • Atsushi HiroHiroki FujiokaAtsuhito Koumoto
    • Atsushi HiroHiroki FujiokaAtsuhito Koumoto
    • B01D63/00B01D63/10
    • B01D63/10B01D65/003
    • A spiral reverse osmosis membrane element that improves impregnation property of a sealing resin at edges of a membrane leaf and can effectively prevent micro-leaks. The spiral reverse osmosis membrane element comprises a cylindrically wound body comprising a perforated core tube and, spirally wound therearound, a separation membrane, a feed-side passage material and a permeation-side passage material in a laminated state, and a sealing portion for preventing a feed-side liquid and a permeation-side liquid from being mixed together, wherein the separation membrane facing the permeation-side passage material has a structure that a porous support and a skin layer are successively laminated on a non-woven fabric layer, and the sealing portion sealed with a sealing resin is provided at the edges of the separation membrane, wherein the separation membrane is impregnated with the sealing resin at least up to the vicinity of the skin layer through the porous support.
    • 一种提高密封树脂在膜片边缘的浸渍性能的螺旋反渗透膜元件,可有效防止微漏。 所述螺旋反渗透膜元件包括圆筒形卷绕体,所述圆筒形卷绕体包括穿孔芯管,并且在其周围螺旋地缠绕有层压状态的分离膜,进料侧通道材料和渗透侧通道材料,以及用于防止 进料侧液体和渗透侧液体混合在一起,其中面向渗透侧通道材料的分离膜具有多孔载体和表皮层依次层压在无纺布层上的结构,以及 在分离膜的边缘处设置用密封树脂密封的密封部分,其中分离膜通过多孔载体至少直到皮肤层附近浸渍密封树脂。