| 摘要 |
The present invention relates to a multi-stage dehumidification system for local dehumidification of a dry room. The multi-stage dehumidification system divides a main dehumidification unit closed from the outside and having relative humidity of 2-10% and at least one local dehumidification unit having not more than the relative humidity of 1% inside the main dehumidification unit. Therefore, the multi-stage dehumidification system is capable of minimizing a region where the relative humidity is controlled to be less than 1% to be precisely controlled, reducing costs, and blocking the local dehumidification unit from the outside in multiple stages in order to reduce a rapid environmental change when a worker enters the inside and the outside of the local dehumidification unit. |
