Water Treatment

▲Caution

predict the corrosive tendencies of the tower water toward concrete. An explanation and method of calculating the Langelier index can be found in all books on water treatment. Maintaining a positive Langelier index provides excellent protection of concrete.

Slime, a gelatinous organic growth, and algae, a green or brown plant growth, may grow in the cooling tower or heat exchangers. Their presence can interfere with cooling efficiencies. Proprietary compounds are avail- able from water treating companies for the control of slime and/or algae; however, compounds which contain copper are not recommended.

Chlorine, if used, should be introduced at a point in the circulating water system that will promote rapid dispersal, and residual chlorine should not exceed one part per million parts water (1 ppm).

Scaling

Scale can be caused by the uncontrolled presence of sulfates, silicates, carbonates, or oxides, and their effect can be accentuated by the presence of suspended muds. Some suggestions and limitations follow:

•Calcium sulfate may be introduced in the make-up water stream and/or produced by the use of sulfuric acid for pH adjustment. The concentration of calcium sulfate should be kept below 1000 ppm, ex-

pressed as CaCO .

3

•Calcium carbonate generally will not form scale in the cooling tower if carbonate scaling does not occur in the condenser. However, if make-up water contains surplus free carbon dioxide, scaling may be inhibited in the condenser but may occur in the fill because of CO stripping.

2

•Silica scale is virtually impossible to remove. However, silica scale is unlikely if concentrations of SiO are held below 150 ppm.

2

•Oxides, such as iron oxide, can coat all parts of the system if soluble iron is present in concentrations above 0.5 ppm. Iron oxides do not usually develop into thick scales but, like mud, can accentuate the development of other scales.

Foaming

Heavy foaming sometimes occurs when a new tower is put into opera- tion. This type of foaming generally subsides after a relatively short period of operation. Persistent foaming can be caused by the concentrations of certain combinations of dissolved solids or by contamination of the circulating water with foam-causing compounds. This type of foaming can sometimes be minimized by increasing the blowdown, but in some cases foam depressant chemicals must be added to the system. Foam depressants are available from a number of chemical companies.

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SPX Cooling Technologies 800 user manual Scaling, Foaming
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800 specifications

SPX Cooling Technologies 800 is a highly advanced cooling tower designed for commercial and industrial applications. This state-of-the-art equipment is recognized for its efficiency, reliability, and robust construction. The 800 model is engineered to meet the demanding needs of modern cooling processes, ensuring optimal performance in various settings.

One of the main features of the SPX Cooling Technologies 800 is its innovative design which contributes to superior heat transfer capabilities. The large surface area of the cooling fill maximizes the interaction between air and water, enhancing cooling efficiency while reducing operational costs. This design also supports effective thermal performance with lower water consumption, making it an environmentally friendly option for businesses.

The unit's fan technology is another standout characteristic. The SPX Cooling Technologies 800 employs low-noise, high-efficiency axial fans that optimize airflow while minimizing sound levels. This consideration for noise reduction makes it ideal for installation in noise-sensitive environments without compromising on performance.

Moreover, the 800 model incorporates a corrosion-resistant casing, fabricated from high-quality materials like fiberglass-reinforced plastic. This durability ensures a long service life and reduces the need for frequent maintenance, which in turn lowers operating costs. The design also allows for easy access to internal components, streamlining servicing and inspection processes.

SPX Cooling Technologies has also integrated advanced automation features into the 800 unit. With intelligent control systems, operators can easily monitor and adjust performance parameters remotely. This capability enhances operational efficiency and allows for predictive maintenance, ultimately extending the equipment's lifespan.

This model is suitable for a variety of applications, including industrial manufacturing, commercial HVAC systems, and process cooling. The flexible design options and customizable configurations allow it to meet specific site requirements, ensuring compatibility with existing infrastructure.

In summary, the SPX Cooling Technologies 800 stands out in the market for its combination of high performance, durability, and efficiency. With features such as advanced fan technology, corrosion-resistant materials, and intelligent automation, it offers a comprehensive solution for modern cooling needs, catering to a diverse range of industries while promoting sustainability and cost-effectiveness.
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