CHEVRON RIBBED FILL UNIT FOR WATER COOLING TOWER

摘要

A thin, self-sustaining, corrugated plate of polyvinyl chloride is strengthened against bending along its lines of weakness by stiffening structure extending vertically of the plate within the thickness confines of the corrugations to minimize airflow impedance. One embodiment utilizes rovings of fiber glass strands saturated with polyester resin which are placed within troughs cut through the corrugations, the resin then hardening to stiffen the roving and bond it to the plate. A second embodiment has sets of side-by-side stiffening channels integrally formed into the body of the plate. A third embodiment employs a wood brace complementally received within each channel of a series of single stiffening channels to augment the strengthening properties of the channels and to support the plate when the braces are suspended from above or stood on a flat, underlying surface. A fourth embodiment uses a transversely U-shaped metal brace in place of the rectangular wood brace of the third embodiment.