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    • 6. 发明授权
    • Spiral wound type membrane module, spiral wound type membrane element and running method thereof
    • 螺旋缠绕型膜组件,螺旋缠绕型膜元件及其运行方法
    • US06168648A
    • 2001-01-02
    • US09382937
    • 1999-08-25
    • Akira OotaniHideki HayamaYoshihiko Kondou
    • Akira OotaniHideki HayamaYoshihiko Kondou
    • B01D5322
    • B01D61/00B01D19/0031B01D63/10
    • A spiral wound type membrane element is formed by superposing gas-liquid contact membranes on both surfaces of a first fluid passage forming member, superposing a second fluid passage forming member on the surface of one of the gas-liquid contact membranes and spirally winding the gas-liquid contact membranes around a second fluid supply pipe along with the first fluid passage forming member and the second fluid passage forming member. A side portion on the inner peripheral side and a side portion on the outer peripheral side of a first fluid passage formed by the first fluid passage forming member between the gas-liquid contact membranes are sealed. Both end portions of a second fluid passage formed by the second fluid passage forming member between the gas-liquid contact membranes are sealed. The spiral wound type membrane element is stored inside a cylindrical container. The gas-liquid contact membranes are formed by PTFE (polytetrafluoroethylene) porous membranes having hydrophobicity. First fluid is supplied from a first fluid inlet of the cylindrical container, passes through the first fluid passage of the spiral wound type membrane element and is taken outward from a first fluid outlet of the cylindrical container. Second fluid is supplied into the second fluid supply pipe from a second fluid inlet of the cylindrical container, passes through the second fluid passage of the spiral wound type membrane element and is taken outward from a second fluid outlet of the cylindrical container.
    • 螺旋缠绕型膜元件通过在第一流体通道形成构件的两个表面上重叠气液接触膜而形成,将第二流体通道形成构件叠置在一个气液接触膜的表面上并螺旋地缠绕气体 - 液体接触膜与第一流体通道形成构件和第二流体通道形成构件一起在第二流体供给管周围。 在气液接触膜之间由第一流体通道形成部件形成的第一流体通道的内周侧的侧部和外周侧的侧部被密封。 由气液接触膜之间的第二流体通道形成构件形成的第二流体通道的两端部被密封。 螺旋缠绕型膜元件储存在圆筒形容器内。 气液接触膜由具有疏水性的PTFE(聚四氟乙烯)多孔膜形成。 第一流体从圆筒形容器的第一流体入口供应,通过螺旋卷绕型膜元件的第一流体通道,并从圆柱形容器的第一流体出口向外取出。 第二流体从圆柱形容器的第二流体入口供应到第二流体供给管中,通过螺旋缠绕型膜元件的第二流体通道,并从圆筒形容器的第二流体出口向外取出。