| 摘要 |
Heat and/or mass interchange by direct contact between a liquid, such as water, and a gas, such as air, is effected by causing the gas to bubble through a layer or layers of the liquid, the liquid being caused to flow over a perforated pan or pans and the gas being forced through the perforations by being supplied at a pressure sufficient to overcome the hydrostatic heat of the liquid. Where a number of pans are employed, the liquid can flow over them in series in two or more streams in parallel. The process and apparatus are of particular value for the cooling of coolant water of air conditioning systems with the aid of air, for the cleaning of polluted air, for the scrubbing of gases with water or other liquids, and for the fractionation of mixture of liquids by means of air or other gas.
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