device for cooling the cooling water by natural ventilation or air force.

摘要

1517724 Direct-contact heat exchangers GEA KUHLTURMBAU UND SYSTEMTECHNIK GmbH and HAMON-SOBELCO SA 15 July 1975 [16 July 1974] 29712/75 Heading F4K The floor of an apparatus such as a cooling tower, in which water droplets falling from a trickling structure (9, Fig. 1) spaced entirely above the floor are cooled by contact with an air stream, is subdivided into areas by one or more drainage channels (e.g. 17, Fig. 7; or 20, Fig. 9), said floor being horizontal or slightly sloped to cause water falling thereon to drain into said channel or channels. For reduction of noise caused by the falling water droplets, at least the floor surface may be of a resilient and/or flexible material such as ashphalt/concrete, rubber or plastics. Sound reducing means may comprise also netting on or spaced slightly above the floor surface. The floor surface may be formed with boss-like projections. The drainage channels may in cross-section be tubular (Fig. 14), semicircular (Fig. 13), triangular (Fig. 12), rectangular (Fig. 16) or trapezium shaped, and may have covers thereon. The channel may be formed of or lined with steel, plastics, concrete ashphalt or natural stone.