| 摘要 |
<p>The paint spray booth has a perforated floor so that both washing liquid and ventilating air can be extracted through it. It also includes a noise damping system under the floor. Below the perforated floor is a lower floor with a line of outlet tubes through it for a discharge of air and water. The noise damping system is incorporated between these two floors. The systems uses an inverted cup shaped cover over each discharge tube which has a layer of sound absorbing material inside, retained by a lower perforated sheet. An alternative design uses a stacked and staggered sheets forming channels, with absorbent material each side.</p> |
