Answer: When the dryer is working, a large amount of condensate will accumulate in the precooler and evaporator containers. If the condensate is not discharged in time and thoroughly, the dryer will become a water storage tank. The results are: ① A large amount of liquid water is entrained in the exhaust gas, making the operation of the dryer meaningless; ② The liquid water in the machine absorbs a large amount of cold, which increases the load of the dryer; ③ The compressed air circulation area becomes smaller and the air pressure drop increases. Therefore, timely and thorough discharge of condensate from the dryer is an important guarantee for the normal operation of the dryer.