| 摘要 |
<p>The interfacial area between the two phases is increased by a multiplicity of film-forming elements (1, 3) which degrade the liquid phase on solid surfaces into liquid films and which consist of two parts, namely on the one hand of vertically or almost vertically arranged film-stabilising elements (1) from which pulse-generating elements (2) project almost perpendicularly which are axially symmetrical and, as viewed from the main direction (4) of the liquid stream, start essentially in a wedge shape and are then also curved downwards in a convex or concave or regular shape and, as a limit, are closed off by a straight end, and on the other hand of a head part (3) which is connected to the upper edge of the film-stabilising elements (1) and, as viewed in a vertical section from the main direction (4) of the liquid stream, starts with a curved convex arc increasing at a constant or uniform rate and continues in a wedge shape up to the film-stabilising element (1).</p> |
