| 摘要 |
<p>The throtting arrangement has freely suspended yarns orientated in the flow direction to reduce noise at high flow rates. The throttle also smooths the entry of a liq. flowing into an open container, to prevent splashing. The yarns(3) have a structured surface texture and are plaited from a number of individual yarns. The yarns can have thicker parts along its length. Alternatively the yarn surfaces can be provided with projecting part of the yarn can have helical twist. The yarns are held on a support screen(2).</p> |
