Cooling tower cooling technology design requirements - Database & Sql Blog Articles

In cold and severe cold areas, it is essential to implement antifreeze measures to protect the system from damage due to freezing temperatures. When designing a cooling tower system for winter conditions, several key factors must be taken into account to ensure optimal performance and efficiency. First, the cooling capacity of the terminal coil should be sufficient to meet the winter heating load requirements, especially under the highest calculated water supply temperature and the specified temperature difference between the supply and return water. To maximize efficiency, the water supply temperature should be as high as possible, which can extend the operating time of the cooling tower during colder periods. Second, the maximum cooling tower capacity should be determined based on the required cold water temperature, temperature difference, and the number of units used for cooling in winter. This calculation should take into consideration the cooling load demand, the air conditioning cold water temperature, the cooling tower’s capacity under outdoor winter conditions (as provided by the manufacturer), and other relevant parameters such as heat exchanger temperature differences. Third, if an open cooling tower is used, it should be equipped with a plate heat exchanger. A heat exchange temperature difference of 1–2°C is typically recommended. For closed cooling towers, direct water supply can be used without the need for additional heat exchange equipment. Fourth, the specifications and number of circulating pumps for winter air conditioning and plate heat exchangers should be carefully matched to the winter cooling conditions. This ensures that the system can maintain stable operation even in low-temperature environments. These guidelines are compiled based on common issues faced by professionals in real-world applications. They are intended for reference only. If you encounter any discrepancies or have further questions, please feel free to communicate and correct them promptly. Always consult with experienced engineers or manufacturers to ensure accurate and safe implementation.

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