Influence and function of heat transfer efficiency of cooling water tower
Release Time:2021-07-20
The cooling water tower is a device for cooling water. It is widely used in air conditioning circulating water systems and industrial circulating water systems. In the case of water treatment, the cooling effect is one of the important performances of the cooling tower. However, when we use the cooling water tower to work, we should also pay attention to the factors that will affect the heat exchange efficiency of our cooling water tower. If we do not handle these problems well, it will seriously affect our work efficiency, therefore, in order to enable everyone to finish the work normally and understand it together.
The factors that affect the heat exchange efficiency of the cooling water tower are related to the water distribution, aerodynamic characteristics, packing performance and other factors of the cooling water tower. Under the condition of other conditions unchanged, improving the water distribution of the cooling water tower will improve the heat exchange efficiency of the water tower. One operation of the cooling water tower does not consider the design and operation factors, the main problems affecting the operation heat exchange efficiency of the cooling water tower are uneven water distribution, packing damage and collapse, deformation of the water collector and sundries on the packing. The main problems affecting the operation heat exchange efficiency of the cooling water tower are uneven water distribution, which is manifested in poor water spraying uniformity of the splashing device, little difference in the thickness of the water film formed on the packing, and the thickness of the water film formed in the thin film packing at the part with large water volume, the heat exchange is slow, and the heat taken away by the air in the same water falling time is small. When the critical water film thickness is reached, the stability is lost, the fluctuation is formed, and the blockage phenomenon is easy to occur, which increases the airflow resistance.
Cooling towers are two main types of cooling water type and air cooling type. These two types of cooling towers include natural ventilation cooling towers and mechanical ventilation cooling towers. Cooling towers consume a lot of water because they are mainly affected by the wet bulb temperature of air and dissipate heat by evaporation and conduction of water. Air cooling towers use conduction to absorb heat to dissipate heat, which is mainly affected by the dry bulb temperature of air, because the air dry bulb temperature is high, the specific heat is small, the heat absorption capacity is limited, and the cooling efficiency is low, therefore, the air cooler needs to have a large surface area, so that the cost of the air cooler is high, and the functions of different types of cooling towers are different. Therefore, when choosing a cooling tower, you should first know what your needs are, and then choose a suitable cooling tower according to your needs.
Precautions for operation of cooling water tower:
1) Foreign matters on the air inlet side or around the wind trunk shall be removed.
2) Make sure that there is enough clearance between the tail of the windmill and the trunk of the windmill to avoid damage when the cooling tower is not running.
3) Check whether the V-belt of the reducer is properly adjusted.
4) The position of the V-shaped pulley must be kept at the same level with each other.
5) After the above inspection is completed, start the switch intermittently to check whether the operation mode of the windmill is correct and whether there is abnormal noise and vibration.
6) Remove the hot water tray and the debris inside the tower body.
7) Remove the dirt and foreign matter in the hot water tray, and then fill the water to the overflow position.
8) Start the circulating water pump intermittently to remove the air in the pipe until the pipe and the cold water tray are filled with circulating water.
9) When the circulating water pump operates normally, the water level in the cold water tray will drop slightly, and the float valve must be adjusted to a certain water level.
10) Circuit system, reconfirm whether the circuit switch, fuse and wiring specifications match the motor load.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures
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