Plastic cooling towers

Figure 8.1 Modular constructed plastic cooling towers (courtesy of Delta Cooling Towers, Carborundum Corp., Fairfield, NJ).

Plastic Cooling Tower Saves Space and Weight Whirlcool Inc. [Pg.322]

Packaged, Fiberglass-Reinforced Plastic Cooling Towers... [Pg.7]

Organophosphoms compounds, primarily phosphonic acids, are used as sequestrants, scale inhibitors, deflocculants, or ion-control agents in oil wells, cooling-tower waters, and boiler-feed waters. Organophosphates are also used as plasticizers and flame retardants in plastics and elastomers, which accounted for 22% of PCl consumed. Phosphites, in conjunction with Hquid mixed metals, such as calcium—zinc and barium—cadmium heat stabilizers, function as antioxidants and stabilizer adjutants. In 1992, such phosphoms-based chemicals amounted to slightly more than 6% of all such plastic additives and represented 8500 t of phosphoms. Because PVC production is expected to increase, the use of phosphoms additive should increase 3% aimually through 1999. [Pg.383]

Plastic packing of very low pressure drop, developed for water-air cooling tower applications. [Pg.86]

Glutaraldehyde foam plastics for wallcoverings, floor coverings, insulation and packaging materials Hospitals, laboratories, cooling tower systems and... [Pg.76]

The wet deck or surface, is the heart of most cooling towers. Generally, it takes the form of PVC (polyvinyl chloride) plastic film type surface. Water is made to spread out on this surface maximizing it s contact area with air to encourage evaporation. It consists of individual vacuum formed sheets with proprietary patterns of ridges. [Pg.77]

Wood or plastic filled towers for cooling water by using air are quite economical for certain heat loads and geo-... [Pg.379]

The fill illustrated in Figures 9-1 lOA and B is typical of many cooling tower heat transfer evaporative cooling surfaces. The wooden splash type is the oldest in terms of length of usage, while the film types (some fabricated of plastic) have been in service about 40 years [148]. [Pg.388]

Figure 9-130. Atmospheric cooling tower water loss for various wind velocities. Used by permission of Plastics Technical Service, The Dow Chemical Co., Midland Mich, with data added from Fuller, A. L, et al. Chemical Engineering Progress, V. 53, No. 10 (1957) p. 501 all rights reserved.

Materials of construction must he corrosion resistant. Steel should he hot galvanized, although some resin coatings may suffice. GRP casings are used hy some manufacturers. The water-dispersal packing of a cooling tower is made of treated timber or corrugated plastic sheet. [Pg.72]

Cooling tower packing (plastic plate or wooden lath)... [Pg.764]

Grid packings, which are relatively easy to fabricate, are usually used in columns of square section, and frequently in cooling towers which are described in Volume 1, Chapter 13. They may be made from wood, plastics, carbon, or ceramic materials, and, because of the relatively large spaces between the individual grids, they give low pressure drops. Further advantages lie in their ease of assembly, their ability to accept fluids with... [Pg.218]

Some manufacturers of internal cooling tower components, specifically fill material and drift eliminators, have products produced from less easily ignited plastic that have been tested by a nationally recognized testing laboratory and determined to have sufficient fire resistance or reduced flame spread ratings that when, and only when, used in an otherwise noncombustible cooling tower, do not require fixed automatic fire protection. [Pg.321]

Fans shall be of a design that has operated satisfactorily in cooling tower service for at least five years. The fans shall have a minimum of four blades of aluminum alloy, stainless steel, monel or equivalent. Plastic blades are not acceptable. Blades shall be adjustable for degree of pitch and shall be individually fastened to a hub of welded steel or cast iron (stainless steel optional at extra cost). [Pg.174]

The shells of the cooling towers shown in Figure 8.1 are constructed of polyethylene. Table 8.3 summarizes some of the properties of high-impact polyethylene. This plastic is also employed in constructing fill packing. Table 8.4 also gives chemical resistance information on various plastic resins. [Pg.199]

Drop size measurements were made on water sensitive papers exposed inside cooling towers at various levels. Results are given for samples taken under eliminators, over eliminators and high in towers. Design and operational factors which affect the values are discussed. Droplet removal efficiencies are given for conventional louvre eliminators and for louvre eliminators modified with plastic meshes. [Pg.291]

Petrosar Ltd. Will Use Reinforced Plastic Mortar (RPM) Pipe in a Cooling Tower)... [Pg.311]

The method of addition is not conducive to good control, and therefore this oxidizer is suitable only for the smallest cooling systems. Due to the high chlorine content and rapid solubility, care should be exercised to ensure that the materials of construction can tolerate this biocide. (Often some galvanized packaged towers and plastic bottle towers are unsuitable.) Peak free chlorine reserves can easily exceed 2 to 3 ppm CI2 unless good control is exercised. [Pg.189]

Refurbishment of cooling tower structures to include replacement of wood with plastic or metal, fitting of new drift eliminators, or fill-packs, and epoxy painting of exposed metal surfaces. [Pg.322]

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