| 摘要 |
A diffusion membrane unit (10) comprises a plurality of capillary membrane fluid flow tubes (12). An elongated flow guide member (14) is positioned within the capillary membrane tubes, with the flow guide member defining at least one radial fin (18) positioned longitudinally along the axes of the flow tubes. The radial fin defines a helical relation along its length, whereby fluid passing through the capillary membrane tubes is impelled to flow in a helical path, for increased mixing of the liquid in the capillary membrane tubes. |
