The general heat rejection selection of closed cooling towers is mainly determined according to the climate, because in winter, the weather is relatively cold, and the heat rejection may be too large. In the process of working, even if the ambient temperature is higher than zero, Closed cooling towers can also drop the water in the pipe to zero degrees, and even cause icing. The closed cooling tower mainly puts the tubular heat exchanger in the tower, and then achieves the effect of cooling through forced ventilation, exchange of spray water and circulating water. A notable feature of the closed cooling tower is that it can ensure low water consumption, free from any pollution in water quality, ensure the operation of the main equipment, and extend the service life of the equipment.
The internal water collection tank and spray pipes of the closed cooling tower are composed of various combinations, so we need to clean them in time to prevent scale from blocking the pipes, and timely check whether there is dirt in the packing part. If dirt is found, it must be cleaned up in time to ensure that the heat exchange environment is clean, clean the dirt on the surface of the fan blade in time, and make timely adjustments.
In addition, we must also check whether the floating ball on the copper ball valve in the sump of the closed cooling tower can work normally, check whether the sump, tower foot, etc. are leaking, and if there is water leakage, make up the glue immediately.
Check whether the sound is abnormal when the motor is rolling, whether the screw fixing the motor is loose, and check whether the rolling of the cooling tower reducer is abnormal in time. If abnormal noise occurs, you need to replace the reducer bearing immediately and check whether the fan blades are uniform in time distributed.
In fact, for tube-fin heat exchange equipment such as closed cooling towers, in order to prevent the tube slices from freezing at low temperature in winter, the circulating water in the tube slices is generally cleaned in time when it is out of service. However, the current cross-flow closed cooling tower still has the problem of slow water discharge or dirty discharge, which leads to freezing and cracking of the tube slices.
If the water drain in the closed cooling tower is not clean, even if there is no frost cracking, and there is partial icing in the pipe, it may still cause the appearance of the tube burst after the start, so we need to pay more attention to these problems.
As a combination of evaporative cooling tower and closed cooling tower, the effect of evenly distributed spray water in the later stage is still good. Many factories now also use closed cooling towers in order to make the role of waste heat treatment more prominent.
Guangdong Teling Air Conditioning contracted major brands of cooling tower filler replacement, cooling tower sound insulation and noise reduction, cooling tower maintenance, cooling tower energy-saving transformation, cooling tower removal and replacement, cooling tower parts replacement, cooling tower anti-corrosion and waterproof plugging, circulating water Cooling system engineering, etc. The scope of services includes Dongguan, Shenzhen, Guangzhou, Huizhou, Foshan, Zhuhai, Zhongshan, Shantou and other places. Welcome to call to discuss business.
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