PVC cooling tower packings
packing or evaporation surfaces
Evaporation surfaces or packings of cooling towers are considered one of the most important parts for heat exchange, or in other words, as the heart of cooling towers.
Choosing the right type of packing
The exact choice of cooling tower packing depends on factors such as water quality, type of industry and environmental pollution. If the water quality is high (less than 120mm hardness) and the level of environmental pollution is low, Film Fill packing or PVC packing is used.
Film Fill (PVC) packings
In PVC packings, water droplets form a layer or film of water on the surface of the packing sheets. The air that passes through the packing space causes surface evaporation of the upper layer of water film, and the upper layer of water evaporates by taking the energy and latent heat of evaporation from the lower layer and leads to This type of packing is used when the water is not very hard and the surrounding environmental pollution is low, otherwise it will quickly become clogged and the efficiency will drop.
Types of film packing in terms of pitch
- Packing model CF12 with 12mm pitch
- Packing model CF16 with 16mm step
- CF19 model with 19mm pitch
- CF25 model with 25mm pitch
Film packings are used (made in Iran).
The material used is PVC or PP, which is usually made of PVC, which is of lower quality than PP. The packaging is made of PP, made of high-quality and first-class materials, and is black in color with a thickness of 350 to 450 It is micron and can be washed with acid and has a high resistance to sunlight. The thermal resistance of PVC packing is between 60 and 70 degrees Celsius, but in the PP type, it has a thermal resistance of 100 to 110 degrees.