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Coil is the most expensive component in closed cooling tower. In order to reduce economic loss and prevent freeze-crack damage, timely attention should be paid to circulating fluid temperature and environmental climate effects.
During normal operation in winter, pay attention to monitoring the environment and fluid temperature should avoid close to freezing point temperature. When appropriate, the auxiliary heating device can ensure the safety of operation. If the environment temperature is too low, stable and reliable antifreeze should be added in the coil in the appropriate proportion according to external environment temperature to ensure that the medium will not freeze and solidified.
Long-term shutdown in Winter, it is recommended that stainless steel and copper coil, in time to empty the medium fluid, at the same time to avoid residual fluid ice damage heat exchange coil, compressed air can be used to assist the empty.