Fan cooling towers
The undoubted advantage of prefabricated fan cooling towers is the speed of their erection on the construction site.
Design features, as well as a method of corrosion protection (hot-dip galvanizing) allow their installation at any time of the year without the use of welding and painting works! Mounting of the cooling tower frame is performed by means of high-strength bolted joints in pre-prepared holes, which allows to preserve the integrity of the protective zinc coating on each individual element of the cooling tower frame.
Advantages of fan cooling towers:
- Compactness in comparison with chimney-type cooling towers of the same capacity (allows for large irrigation densities);
- Ability to calculate the cooling tower directly for the specified process loads and customer requirements (number of sections, section dimensions, fan capacity, fan diameter, sprinkler type);
- Providing deeper water cooling, compared to other types of cooling towers;
- Possibility of smooth adjustment of the cooling capacity (frequency control of the fan operation, shut-off section by section);
- Structure fabrication in factory conditions;
- Application of protective coatings in the factory (galvanizing, composite materials);
- Quick mounting on site.
Ejection cooling towers
The principle of operation of the ejection cooling tower is based on the use of the ejection effect achieved with the help of special ejection nozzles in conjunction with guides for water and air flow.
The effect of ejection is as follows: a high-pressure working substance moving at high speed carries with it a working substance with a lower pressure. An entrained stream is called ejected. The main feature of the physical ejection process is that the mixing of streams occurs at high ejection (active) flow rates, in the case of a cooling tower – the flow of circulating water.
Economic effect:
- Cleaning the nozzles without stopping the operation of the cooling tower;
- Lack of the basin (the underground tank) reduces the construction time and cost estimates;
- Significant reduction in maintenance costs due to the lack of a fan;
- Reduction of energy consumption and costs for maintenance staff due to system automation;
- Reduction of pipeline lengths by placing cooling towers close to production buildings;
- Adding of water to reduce the temperature of the water is not being used;
- Capital costs are 1.5-2 times lower (compared to typical fan cooling towers);
- Operational costs by 40% to 50% lower;
- Payback of the cooling tower by reducing the cost of water consumption and sanitation in the first to third months of operation.