Routine Maintenance Of Enclosed Cooling Tower Fans And Water Pumps
Fans and spray pumps are key components of fluid cooling towers. Daily maintenance of closed cooling towers is not difficult, but we must pay attention to the following points.
Details of inspection and maintenance of closed cooling tower fans
Check for deformed or damaged blades, or dust, dirt, and other attachments. In addition, confirm that the clearance between the inner surface of the wind tower and the blades is uniform in roundness. Also, is there any exception. The frequent start and stop of the cooling tower fan motor will lead to failure. Pay attention to the operation method and control the number of starts to be less than 4 times/hour.
When checking the pump of a closed circuit cooling tower, be sure to cut off the power supply to the pump. Sometimes it is very dangerous to start the pump suddenly due to automatic operation etc. When pressure, flow, current, vibration and noise are very different from normal, they are precursors to failure and it is important to deal with them. When the fluid cooling tower vibrates greatly, please check whether the pipe installation or foundation bolts are loose. Sometimes it is caused by the vibration of circulating water. When fabricating piping, consideration should be given to installing flexible joints, pressure vibrations, or absorbing devices. If the outlet valve is closed and operated for a long time, it will burn out the inside, so be careful.
Frequent starts and stops will burn out the motor very quickly. Please install the following standard to control the number of startups. Motor power starts 6 times/hour when the power is below 75kw, start 4 times/hour below 11kw. If the water inside the pump is out of operation or maintenance for a long time in winter, if the pump freezes, the pump will freeze. The pump must be insulated or the water inside must be drained.
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