| 摘要 |
<p>A spiral module primarily for separating liquids and gases, comprises a functional membrane bag (1,2), for example of porous expanded polytetrafluoroethylene, provided with a tube (5) defining a first fluid inlet (7) and a first fluid outlet (8) for the passage of a fluid into and out of the bag respectively, the bag having an interior partition (4) which causes fluid entering the bag through the inlet to follow a substantially U-shaped flow path (10) over the interior surface of the bag to the outlet, and a spacer layer consisting of a fluid-permeable material on the outside surface of the functional membrane bag, the bag and the spacer layer being wound spirally around the tube (5) to form a substantially cylindrical body, and the module being provided with a second fluid inlet (A) and a second fluid outlet (B) at opposite ends of the spacer layer.</p> |
