| 摘要 |
The filter device for filtering liquids comprises a filter membrane (2), a main body which is arranged upstream from the filter membrane (2),and which has a feed channel (3) perpendicular to the surface of the filter membrane (3), a gap (5) extending between the filter membrane (2) and the main body forming a tangentially directed cross-flow, and a return channel (6) which is used to return the tangential flow to the feed channel. Said flow is primarily returned thereto by means of a contraction (3') in the feed channel (3) at the mouth of the return channel (6). Preferably, a solid separator (20) is disposed in the return channel. At least one chicane element (7, 8, 9) is arranged in the feed channel in order to create a turbulent flow. The tangential flow along the filter membrane is used to clean said membrane.
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