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    • 8. 发明授权
    • System and method of gas dispersal and collection for preventing gas
contamination
    • 用于防止气体污染的气体分散和收集系统和方法
    • US6065901A
    • 2000-05-23
    • US809861
    • 1997-04-02
    • Richard StevensPaul NicholsMalcolm Martin
    • Richard StevensPaul NicholsMalcolm Martin
    • E02D31/00E02B13/00
    • E02D31/00Y10S454/909
    • A system for use in preventing a flow of gas from a gas-containing region (20) to an adjacent region (22) and/or for collecting or dispersing gas at the interface between the regions, comprising a composite barrier (10) installed so as to separate the two regions (20, 22), the barrier (10) comprising a gas-impermeable layer (11) and a gas-permeable membrane (12) interconnected so as to define an interspace (16) between them and arranged with the permeable layer (12) facing the region containing gas (20) to be dispersed or collected. A method is also described comprising the steps of connecting an aperture (36) or aperture of the barrier communicating with the interspace (16) thereof to pumping means (37) which, in operation, act to pump gas into or out from the interspace (16) by creating a pressure differential across the permeable membrane such as to cause gas to flow therethrough across a major proportion of its surface area.
    • PCT No.PCT / GB95 / 02364 Sec。 371日期1997年4月2日 102(e)日期1997年4月2日PCT提交1995年10月5日PCT公布。 出版物WO96 / 11304 PCT 日期1996年4月18日一种用于防止气体从含气体区域(20)流动到相邻区域(22)和/或用于在区域之间的界面处收集或分散气体的系统,其包括复合屏障 (10),以分离所述两个区域(20,22),所述阻挡层(10)包括不透气层(11)和气体可渗透膜(12),所述气体可渗透膜互相连接以限定空隙(16) 并且配置有面向包含气体(20)的区域的可渗透层(12)以被分散或收集。 还描述了一种方法,其包括以下步骤:将与所述空间(16)连通的所述屏障的孔(36)或孔连接到泵送装置(37),所述泵装置(37)在作用中用于将气体泵入或从所述空间中排出 16)通过在渗透膜两端产生压差,使得气体在其表面积的主要比例上流过其中。