COOLING INSERT FOR EQUIPMENTS CARRYING OUT HEAT AND MATERIAL EXCHANGE BEING BETWEEN GASEOUS MEDIUM AND FLUID PARTICULARLY FOR COOLING TOWERS AND DEGASING UNITS

摘要

A film-flow packing (22) for apparatus performing heat- and material-exchanges between a liquid and a gaseous medium, particularly for cooling towers and degassing units, comprises, in a manner known per se, juxtaposed cooling sheets (20) with fluid conducting channels (e.g. 26a) having parallel medial lines (30) is improved by that the channels (e.g. 26a) are of sinuous shape (e.g. 28a), and mutually opposite channels (e.g. 26a and 26b) are offset with respect to one another while, in a projection at right angle to the cooling sheets (20), the channels (e.g. 26a) intersect and form a system of interconnected passages. The useful surface of the improved packings (22) amounts to 180 to 250 square meters per cubic meter in distinction to the value of 100 to 150 square meters per cubic meter of conventional packings. This is due to crossings (32) of the channels (e.g. 26a) which offer uniformly distributed points of mutual support and bonding of the cooling sheets (20) of a packing (22).