GB689805A - Improvements in and relating to liquid cooling towers and the like - Google Patents

Abstract

689,805. Water-cooling tower. FOSTER WHEELER, Ltd. Nov. 22, 1950 [Dec. 31, 1949], No. 28551/50. Class 64 (i) Relates to water-cooling towers having a chamber the bottom of which is spaced from the ground level to provide air inlets, and a water reservoir below the chamber bottom, air, under induced draught, being admitted below and withdrawn above the chamber, after passing through the usual filling. Furthermore, water-distributing means below the air outlet, and water-collecting means leading to the reservoir are also provided. According to the invention, a number of air spaces are provided through the reservoir so that air is free to flow into the tower from any side. In the form shown, a single cell for the tower comprises sides 11, 12 ends 13, 14 and roof 15. The sides and ends are sheathed between level P, Fig. 5, and roof to enclose an openbottomed chamber spaced from the ground level L and in two sections 25', 25" separated by space 26. This space has a rectangular distributing water conduit 34, gutters 38 leading from the conduit across the chamber sections to the sides 11, 12 and draining through spouts 40 on to atomizing splash plates 41 which drop water on to the usual fillings 42, extending downwardly to level D. The water passes through the fillings in heat-exchange relationship with air induced upwardly through openings 19 by a fan 59. The water drops into inclined collecting troughs 44 arranged in staggered formation and drains into the reservoir 45. The reservoir has tapered wooden sides 50,51 and the top, above the level P, extends into the space 26 to receive the discharge from the troughs. Tunnel-like openings for the passage of air traverse the reservoir which discharges into a tank 49 below the level L. The inclined floor 56 has a surface drain 55 leading to a sump 57 from which water reaches the tank 49 by a pump 58. The tower is strengthened against wind load by a reinforced central section comprising vertical columns 28, inclined struts 32, 33, and bracing 31. Air is drawn upwardly through the tower by the fan 59 driven by motor 64 and arranged in a housing 66 in the roof. Water to be cooled enters the conduit 34 through a pipe 65, Fig. 1, and is withdrawn by pipe 65<SP>I</SP>.