Closed type cooling tower working fluid (water, oil or other liquid) in the coil pipe flow and the outer wall of the coil is wrapped in the water spray, heat fluid through the tube wall transfer and saturated with water and air travel of damp and hot steam, heat is discharged into the atmosphere through a fan, spray water in the circulation process is through the PVC heat sink decreased temperature, and the fresh air inlet formed Feng Shui to flow in the same direction, coil is mainly rely on hot and humid heat conduction mode, running principle is an important characteristic of the maximum possible suppression coil is arranged on the outer wall of the scale formation.
Add antifreeze: local minimum ambient dry bulb temperature (temperature) - 10 DEG C or lower than - 10 DEG C, should add 20-30% of the high content of antifreeze, to actual ice freezing as a criterion, the user can master flexibly according to the actual situation.
Second, stop (without) by compressed air to dry the water cooler, the closed type cooling tower water discharge clean, then the compressed air connection into the exhaust hole charge, from the mouth of the drainage will residual moisture excluded.
Three, the use of electric heating treatment: when the environmental temperature only zero degrees Celsius, can consider to add electric heater or other sources of heat in the pipeline and the circulating water tank, to improve the closed type cooling tower of the surface temperature, so as to achieve the antifreeze.