公开(公告)号：US20080295951A1

公开(公告)日：2008-12-04

申请号：US12173694

申请日：2008-07-15

申请人： Atsushi HIRO ,  Hiroki Fujioka ,  Atsuhito Koumoto

发明人： Atsushi HIRO ,  Hiroki Fujioka ,  Atsuhito Koumoto

IPC分类号： B65H81/06

CPC分类号： B01D63/10 ,  B01D65/003

摘要： 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, by using, for example, a porous support having a structure capable of sufficiently impregnating therein a sealing resin, a method for manufacturing the same, and a use method of the same are disclosed. 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 through 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.

摘要翻译： 一种螺旋反渗透膜元件，其提高密封树脂在膜片边缘的浸渍性能，并且可以通过使用例如具有能够充分浸渍密封树脂的结构的多孔载体来有效地防止微漏泄， 公开了其制造方法及其使用方法。 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，其中通过透过侧通道材料面对的分离膜具有多孔载体和表皮层依次层叠在无纺布层上的结构， 并且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。