| 摘要 |
1,156,635. Ventilating buildings. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. 7 Oct., 1966 [14 Oct., 1965], No. 45022/66. Heading F4V. In a building for the production of aluminium by electrolysis comprising a sloping roof 110, 310, outer walls 120, 320 and a central passageway 2, fresh air is introduced through louvred openings 123, 323 at the bottom of the outside walls and polluted air is withdrawn by a common fan 223 above the passageway through apertures 142, 342 in baffles 141, 341 defining triangular section passages 140, 340 in the top inner corners of the rooms 1, 3. The polluted air is purified by a water spray before being exhausted through a chimney 225. |
