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technical article

Reasons affecting the heat transfer efficiency of the [cooling tower nozzle]

发布时间:2019-04-24 17:15:46 浏览次数:369次 Source: admin Release time: 2019-04-24 17:15:46 Views: 369 times
The factors affecting the heat transfer efficiency of the cooling tower nozzles are related to the water distribution of the water tower, aerodynamic characteristics, and filler performance. Under other conditions, improving the water distribution of the cooling tower will improve the cooling tower replacement. Thermal efficiency.

The main problems that affect the heat transfer efficiency of the cooling water tower are uneven water distribution and clogging of the filler, which is reflected in the poor uniformity of the spray water of the spraying device. The thickness of the water film formed on the filler is not much different. The water film formed in the filler is thick, heat exchange is slow, the heat taken away by the air during the same falling time is small, when it reaches the critical water film thickness, it loses stability, forms fluctuations, and is prone to blockage, which increases the airflow resistance.

Generally, the air entering the cooling tower is dry air with low humidity bulb temperature. There is obviously a difference in the concentration of water molecules and a pressure difference in kinetic energy between the water and the air. When the fan is running, the role of static pressure in the tower Under this condition, water molecules continuously evaporate into the air and become water vapor molecules. The average kinetic energy of the remaining water molecules will decrease, thereby reducing the temperature of the circulating water. It can be seen from the above analysis.

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