TAFR series, designed for maximum corrosion resistance, offers open circuit cooling towers, with a wide range of thermal potentials from hundreds of kW to very respectable sizes over 10 MW. All models apply a modular concept and are fully factory pre-assembled to minimize on-site installation costs. Each model can be customized with dimensions and characteristics based on project needs and in order to respect environmental constraints with reduced acoustic and visual impact. Regarding this, special executions are provided for ATEX environments (“EX” versions), for low temperature environments (“SN” versions), or for low noise emissions (“LN” version).
This series is used in all sectors in civil and industrial field in presence of corrosive environments (for metallurgy and beyond) with excellent results, thus being able to avoid the use of expensive materials such as stainless steel for structures. The main features of these open circuit evaporative towers are the following:
STRUCTURE / MONOLITHIC ENCLOSURE (body, fan stack and collection basin).
The tower exoskeleton is characterized by profiles made of hot-dip galvanized steel in accordance with UNI EN ISO 1461: 1999. The side cover panels are made with a multilayer fiberglass matrix (fiberglass FRP).
Each diffuser can be walked on, and has a truncated pyramid shape to uniform the air crossing speeds in the lower section of the tower, improving the overall efficiency of the machines.
The tower body can be inspected thanks to the inspection doors and removable FRP walls (one for each cell), allowing the operator an easy entry.
An important feature is the presence of a particular coating called “SCAM / SHIELD”, consisting of a FRP sheet fixed with stainless steel bolts along the internal structural walls, wrapping the dispersion elements. In this way, the internal metal structure is completely isolated from the process water, and the phenomenon called “by-pass on wall” is also reduced. With the expression “by-pass on wall” we mean the water that, being nebulized on the internal walls of the tower, does not meet the air rising in against the current, (with consequent loss of efficiency). The perfect internal and external insulation therefore allows the meticulous elimination of any water leaks from the walls of the tower.
The collection basin is made of fiberglass, it is supplied with an external HDGS structure. The collection basin is molded with high thickness self-supporting fiberglass. The basin is supplied complete with all the connections necessary for normal use, its “self draining” design prevents any water stagnation and eliminates parts of the internal water weight. Thanks to these guidelines, the basin is in line with current European anti-legionella indications, being equipped with chutes shaped on the internal edges of the tank so as not to allow contaminants to accumulate in these areas. The inner surface of the basin has a very low degree of roughness, allowing contaminants to flow out easily. An important feature, unique on the market, is determined by the bottom of the basin, which is made up of an internal layer of expanded polyurethane covered with two external layers of fibreglass; this makes it very mechanically resistant and in the event of accidental impacts, the watertightness of the basin would not be compromised.
The combination of these design elements makes our product unique on the package evaporative towers market.