| 摘要 |
711,022. Liquid cooling towers. FOSTER WHEELER, Ltd. Oct. 17, 1952 [Nov 6, 1951], No. 26117/52. Class 64(1) Induced-draught liquid cooling towers, having air inlets 12 below the "fill" 10, are provided with alternative air inlets 36 above the " fill " so that this air is brought into direct heat exchange with the hot 'liquid before it has passed through the "fill." Freezing of the droplets at low ambient temperatures is 'thus avoided. Internal partitions 42 with adjustable top plates 48 are provided. For normal temperatures, the louvres 30 of air inlets 12 are adjusted to the open position, the inlets 36 are closed by hinged dampers 37 and the plates 48 are raised. The air from inlets 12 is then drawn upwardly by the fan 16 in contra flow to the water in three parallel streams. For low ambient temperatures, the louvres 30 are closed, the dampers 37 opened and the plates 48 lowered. The air from inlets 36 is then induced by the fan to pass downwardly in compartments 46 and upwardly in compartment 44. |
