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    • 4. 发明公开
    • GEOMETRIE DE SUPPORT POUR UNE MEMBRANE DE FILTRATION
    • 基础设施FÜREINE FILTERUNGSMEMBRAN
    • EP2544801A1
    • 2013-01-16
    • EP11713313.2
    • 2011-03-04
    • Technologies Avancées & Membranes Industrielles
    • LESCOCHE, Philippe
    • B01D63/06B01D69/04
    • B01D29/0043B01D29/0056B01D29/009B01D29/035B01D63/066B01D69/04B01D69/046B01D2313/146
    • The present invention relates to a filtration element for filtering a fluid medium, comprising a cylindrical rigid porous substrate having a longitudinal central axis (A) and including a plurality of channels through which the fluid medium to be filtered can flow, in order for a filtrate to be obtained at the periphery of the substrate, said channels being provided in the substrate parallel to the central axis (A) thereof and defining at least three concentric filtration areas separated from one another by a continuous porous area. The invention is characterised in that the mean thickness of the porous area (Z
      1 ) closest to the central axis (A) is less than the mean thickness of the porous area (Z
      n-1 ) closest to the periphery of the substrate (1) and, moving from the central axis (A) of the substrate towards the periphery thereof, the mean thickness of a porous area is either identical to or less than that of the next area.
    • 用于过滤流体介质的过滤元件包括圆柱形形状的刚性多孔载体,其具有纵向中心轴线(A)和多个通道,用于循环待过滤的流体介质并在其周边收集滤液 支持。 通道被布置在平行于其中心轴中心(A)的支撑件中,并且限定至少三个过滤区域,它们被同心地分布并且通过连续多孔区域彼此分离。 最靠近中心轴线(A)的多孔区域(Z1)的平均厚度小于最靠近支撑件(1)周边的多孔区域(Zn-1)的平均厚度,并且在移动的方向 远离支撑体的中心轴线(A)朝向其周边,多孔区域的平均厚度与下一个或更小的相同。