Changes in water temperature at the bottom of the air cooling tower in the precooling system
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Why is the water temperature at the bottom of the air cooling tower bound to increase after the precooling system changes from open to closed cycle?
Because the open-circulation chilled water enters the lower part of the air-cooling tower, while the closed-cycle chilled water is pumped out from the middle of the air-cooling tower, the water volume in the lower part of the air-cooling tower decreases and the temperature rises, but this can be compensated by increasing the cooling water volume.
It will definitely rise because there is less water. The original chilled water no longer overflows to the air cooling tower, but is returned to the water cooling tower.
The closed cycle extracts water from the middle part of the air cooling tower and enters the water cooling tower, which changes the amount of cooling water in the lower part of the air cooling tower. It is strange that the water temperature in the lower part of the air cooling tower does not increase. It is recommended not to modify it at will. Closed circulation devices are generally used in areas with poor water quality. If you modify it, you cannot increase the empty water volume of the air cooling tower at will. Otherwise, water intrusion accidents may easily occur.