NEWS CENTER
Oasis Iceberg
02
2025
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01
Does a closed cooling tower need to be frequently replenished with water during use?
In summary, the makeup water volume of a closed cooling tower is a dynamically changing value influenced by various factors. To ensure the stable operation of the cooling tower and extend its service life, it is necessary to reasonably determine the makeup water volume based on actual conditions and take corresponding control measures.
The water replenishment amount of a closed cooling tower is not a fixed value, but a dynamic range that varies based on multiple factors. The following is a specific explanation of the water replenishment amount for closed cooling towers:
1. Calculation of water replenishment amount
Calculation based on evaporation, splash, and dilution:
Evaporation amount:Typically accounts for about 0.54% of the circulating water volume (assuming a temperature difference of 5°C between inlet and outlet water).
Splash amount:Relatively small, about 0.001% of the circulating water volume, and can sometimes be negligible.
Dilution amount:Affected by various factors such as air pollutant quality, supply water quality, and concentration multiple, approximately 0.08% of the circulating water volume (for air conditioning systems).
By adding these three parts together, you can obtain an approximate range for the water replenishment amount of the closed cooling tower. However, please note that this is only a theoretical calculation value, and the actual water replenishment amount may vary due to different operating conditions and environmental factors.
Calculation based on the percentage of circulating water volume:
The water replenishment amount is usually 0.7% to 1.5% of the circulating water volume. This is a common range for water replenishment, and the specific value depends on the specific model, operating conditions, and environmental factors of the cooling tower.
2. Factors affecting the water replenishment amount
Inlet and outlet water temperature difference:The greater the temperature difference between the inlet and outlet water, the greater the evaporation amount, and thus the water replenishment amount will also increase accordingly.
Air humidity and temperature:Air humidity and temperature will affect the evaporation rate, thereby affecting the water replenishment amount.
Design and structure of the cooling tower:The design and structure of the cooling tower (such as filler type, fan speed, etc.) will also affect the evaporation amount and water replenishment amount.
Water quality and pollutants:The quality of the water and the content of pollutants will affect the dilution amount, thereby affecting the water replenishment amount.
3. Regulation of water replenishment amount
Monitoring and control:By installing water level sensors and control systems, real-time monitoring of water level changes can be achieved, and the water replenishment amount can be adjusted as needed.
Water quality management:Regularly test water quality and take corresponding treatment measures (such as adding chemical agents, cleaning pipes, etc.) to maintain stable water quality and reduce dilution amount.
Maintenance:Regular maintenance of the cooling tower (such as cleaning fillers, checking fans, etc.) is necessary to ensure normal operation and reduce issues such as leaks.
In summary, the water replenishment amount of a closed cooling tower is a dynamically changing value influenced by various factors. To ensure the stable operation of the cooling tower and extend its service life, it is necessary to reasonably determine the water replenishment amount based on actual conditions and take corresponding regulatory measures.
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