| 摘要 |
A system for treating comparatively hot and damp gases and comparatively dry and fresh or cool gases, in particular smoke and comburant gases of a hearth, to recover the heat and if applicable the condensates from one gas and to heat and humidify the other gas comprises two enclosures 1, 4 of which enclosure 1 is traversed upwards from below by hot and damp gases and enclosure 4 is traversed downwards from above by the comparatively dry and cool gases. The bases 7 and 8 of the enclosures form collectors for the condensates, the base 7 being connected to the upper portion 6, 11 of enclosure 4 by means of a device 9, 10 for withdrawing condensates for infeed of the condensates and liquid into the upper portion of the second enclosure 4 and placing them in contact with the comparatively dry and cool gases flowing thereinto, and the base 8 being connected to the upper portion of the enclosure 1 by means 13, 14 for withdrawing condensate to draw the condensates from the base 8 and feed these into the upper portion of enclosure 1 traversed by the hot and damp gases, said withdrawal means being formed by pipes 9, 13, provided with circulator pumps 10, 14, and the bases 7 and 8 of the two enclosures being connected by a linking and balancing pipe 16. Enclosures 1, 4 may be adjacent or concentric, and may be packed, e.g. with Raschig rings, or may be open columns. <IMAGE> |
