| 摘要 |
PURPOSE: An air drying device is provided to prevent leakage of the air by comprising operation valves and regeneration inflow valves to dual valves, and to maximize drying efficiency of the air by controlling the temperature of the air. CONSTITUTION: An air drying device comprises the following: a first and a second dehumidification tanks(100,300) in which a dehumidifying agent is received and a regeneration and a dehumidification processes are alternatively performed; a valve blocking or discharging the dehumidified press air; other valves supply or blocking the air to the first and the second dehumidification tanks; and a controller controlling the valves.
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