FAQ

Issues to be noted in the cooling process of fiberglass cooling towers

Author： Views: Time:2025-10-11

　　Fiberglass cooling towers are mainly used in large-scale industrial circulating water systems, and are mainly applied in industries such as refineries, chemical and chemical industries, coking, pharmaceutical and chemical industries, metallurgical and steel industries, etc. Its main function is to dissipate the waste heat generated by operating equipment in industry or refrigeration air conditioning to reduce water temperature as a circulating cooling device.

　　Issues to be noted in the cooling process of fiberglass cooling towers

　　1. The selection of temperature transition point for the cooling method of fiberglass cooling tower is directly related to the cooling hours of the system. Assuming that the required supply water and moist air terminal at this time is calculated and determined to be 12.7 ℃, the cooling amplitude of the cooling tower, the heat loss water temperature of the pipeline and heat exchanger are 4.5 ℃, and the outdoor wet bulb temperature can reach or be less than 8.2 ℃. You can switch to cooling tower and cooling mode.

　　2. After selecting the cooling tower based on the summer cooling load and outdoor wet bulb temperature, the cooling capacity of the cooling tower in the cooling mode should also be checked.

　　3. Plate heat exchangers should be selected for indirect heat exchange systems. Compared with traditional shell and tube heat exchangers, plate heat exchangers have higher efficiency.

　　4. In a direct cooling system, a bypass should be installed in the cooling water circuit for the cooling water pump. When the cooling water pump is turned off, the cooling water side passes through the cooling water pump, and the circulating water power is provided by the cooling water pump. Therefore, the conversion of cooling pumps should be considered in system design.

　　5. In the design of direct cooling systems, attention should be paid to disinfection and filtration of cooling water to prevent end coil blockage.

　　6. Considering the specific outdoor wet bulb temperature and the cooling tower's decrease in cooling load (cooling water temperature and outdoor wet bulb temperature difference) as the size of the cooling packing increases, it can be used for cooling tower systems with multiple connected CO units. Adopting the ridge tower method to improve the cooling effect, increasing the transition temperature between the cooling tower and outdoor cooling methods, thereby increasing the cooling time.

　　7. Due to the fact that the cooling of the cooling tower mainly operates during the filtration season and winter, anti freezing facilities should be installed in the cooling water system in areas with lower temperatures in winter, such as side pipes and additional heaters.

　　Reasons and solutions for poor cooling effect of fiberglass cooling tower

　　1. As an essential equipment for cooling circulating water, fiberglass cooling towers have brought huge energy-saving effects to users in industrial and civilian fields, protecting water resources from waste and achieving energy-saving and emission reduction effects. However, cooling towers also have many problems, such as unsatisfactory cooling effects.

　　2. The cooling tower cannot achieve any cooling effect, etc; The main reason for the unsatisfactory cooling effect of the cooling tower is that during long-term use, due to the turbidity and high hardness of the circulating water, the packing is soaked in high-temperature water for a long time, causing scaling and blockage of the cooling tower packing. Over time, the texture of the packing is blocked, resulting in unsatisfactory cooling effect.

　　2. It is due to improper selection of cooling towers. Therefore, the improper selection of cooling towers is due to the lack of matching of cooling towers based on their own flow rate and inlet water temperature. Using standard cooling towers as industrial cooling towers, small horses pull large trucks, so the cooling effect is definitely not good;

　　3. The sealing around the fiberglass cooling tower is too good, the ventilation type is too poor, and the air cannot circulate, resulting in poor cooling effect of the cooling tower.

　　Solution: For one point, the packing of the fiberglass cooling tower can be replaced; 2、 It is possible to reduce the inlet flow rate of the cooling tower by halving the flow rate on the basis of the original flow rate, which will greatly improve the cooling effect; Thirdly, placing the cooling tower in a shaded and ventilated area greatly improves its cooling effect.

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