Cooling Tower Water Treatment System

Why is cooling tower water treatment system and water quality important？

1.Prevent equipment corrosion and scaling

During the circulation of cooling water, the concentration of salts may increase due to evaporation and concentration. If not treated in a timely manner, abnormal pH values can accelerate metal corrosion; At the same time, excessive hardness can form scale (such as calcium carbonate, calcium phosphate, etc.), reduce heat transfer efficiency, and increase energy consumption.  ‌

2.Inhibit microbial growth

The sufficient oxygen and nutrients in the cooling tower water provide breeding conditions for microorganisms such as algae and bacteria. If not controlled, sludge will deposit inside the heat exchanger and cooling tower, causing equipment blockage, decreased heat transfer efficiency, and corrosion risk.

3.Meets environmental and energy-saving requirements

Water quality control can reduce equipment maintenance costs caused by corrosion and scaling, while avoiding production accidents caused by water quality issues, indirectly reducing energy waste, and meeting sustainable development requirements.

Equipment and component maintenance

(a) Maintenance of water pump and fan

The water pump and fan are the core equipment for the operation of the cooling tower, and any component failure can lead to a decrease in cooling efficiency. If the pump malfunctions and the water flow is insufficient, the heat exchange efficiency of the cooling tower will significantly decrease.

Solution: Regularly check the motor, power supply, and fan blades of the water pump to maintain cleanliness and lubrication, ensuring smooth operation of the equipment.

(b) Cleaning of cooling tower filler and nozzles

Filler (also known as heat dissipation filler) is the heat exchange surface of a cooling tower, which is easily clogged by dirt, debris, and microorganisms. If the packing is contaminated, the water flow decreases and the heat exchange efficiency decreases.

Solution: Regularly clean the filler and nozzle to ensure even distribution of water flow and avoid stagnant or stagnant areas.

(c) Tower structure and protection

The shell and support of cooling towers are easily affected by the environment, especially in humid and windy areas. Long term exposure may lead to corrosion or structural loosening, affecting its service life.

Solution: Use anti-corrosion materials and regularly check whether the tower structure is intact.

External environmental factors

(a) Environmental temperature and humidity

In high temperature and humidity environments, water evaporates faster, and substances dissolved in the water are more likely to concentrate, leading to an increase in pressure in the cooling tower system. Especially in tropical regions such as Singapore, environmental factors impose a significant load on cooling tower systems.

Solution: Adopt an efficient heat dissipation system, such as using dry cooling towers or hybrid cooling technology to reduce evaporation burden.

(b) Air quality and dust pollution

Dust, leaves, bird droppings and other substances in the air may enter the cooling tower water system, causing biological pollution or exacerbating scaling.

Solution: Use equipment such as air filters and dust covers to reduce the impact of external debris on the cooling tower.