| 摘要 |
<p>1. A fluid circulating pump intended for equiping a treatment vat composed of a material having a constitution permeable to a fluid, especially but not exclusively a dyeing vat, comprising a cylindrical duct (12) in which a turbine (14) is disposed coaxially to the duct, one of the ends (16) of the duct opening inside a material-holder tray (6), the other and being in communication, on the one hand, with a piping (7) joined to a circuit outside the vat (1) and, on the other hand, with the inside of the vat (1) on a level with an aperture (18) defining a seat (23) on which comes applying oneself a removable obturator (22), characterized in that the seat (23) of the obturator belongs to a conical surface coaxial to the duct (12) and that the obturator (22) is movable according to a direction parallel with the axis (2) of the turbine (14).</p> |
