When is the refrigerant added to the closed cooling tower? When the ambient temperature is about 0 ° C, it can be considered to add coolant on the pipeline or the circulating water tank, so as to increase the surface temperature of the closed cooling tower, so as to facilitate anti freezing.
When is the refrigerant added to the closed cooling tower?
Add antifreeze: when the local low ambient dry bulb temperature (air temperature) is – 10 ° C or lower than – 10 ° C, 20-30% high content antifreeze should be added, with the actual ice free freezing as the criterion, and the user can grasp it flexibly according to the actual situation.
The working fluid (water, oil or other liquid) of the closed cooling tower flows in the coil, the outer wall of the coil is wrapped by spray water, the heat of the fluid is transferred through the pipe wall, and the water and air are saturated with hot and humid steam. The heat is discharged into the atmosphere by the fan. The spray water is cooled by PVC radiator during the circulation, and flows in the same direction with the fresh air into the air. The coil mainly depends on the wet The important feature of the operation principle is that it is possible to inhibit the formation of scale on the outer wall of the coil.
The closed cooling tower adopts totally closed circulation, without impurities entering and with small pollution; the application of the closed cooling tower can effectively improve the utilization coefficient of the plant, without water pool, directly reduce the occupation of land and save space; the occupied space is relatively small, easy to install, move and arrange, and compact in structure.
The closed cooling tower is easy to operate, stable to operate and highly automated. Low operation cost; wide use, no corrosive medium for heat exchanger, can also be cooled directly; low operation and maintenance cost.
Before shutdown (not used for a long time), use compressed air to dry the water in the cooling tower. First, drain the water in the closed cooling tower, then connect the compressed air to the exhaust hole to fill it, and then remove the residual water from the drainage outlet.