| 摘要 |
A heat-recovery unit includes an outer housing 2 and a heat-recovery cell 1 with two separate air passages 11 and 12 therethrough opening on faces 13, 15, 16, 18 of the cell. The upstream face 13, 15 of each passage is adjacent and inclined at 90 DEG to the downstream face 16, 18 of the other passage. A turret 33, 35, 36, 38 on the housing 2 at each inlet 3, 4 and outlet 5, 6 is rotatable about its axis and has an angled coupling 43 rotatable on the turret about an axis at right-angles to the axis of the turret. The inlet, upstream turrets 33, 35 each contain a filter 133, 135 and the outlet, downstream turrets 36, 38 each contain a centrifugal fan 136, 138. <IMAGE> |
