Dehumidifying element and dehumidifying device with it

摘要

[Object] To prevent deterioration of dehumidification efficiency by suppressing uneven distribution of hollow fiber membranes in an outer casing.[Solution] A dehumidifying element 1 includes a dehumidification space 7 that are formed between a pair of potting material portions 5 and 6 and that accommodates hollow fiber membranes 3 through which highly humid dehumidification-target air is circulated. The dehumidifying element 1 also includes an air supply hole 35 for supplying purging air having a humidity lower than the dehumidification-target air to the dehumidification space 7 and an air discharge hole 36 for discharging the purging air supplied to the dehumidification space 7. In the dehumidification space 7, a guide member 47 is disposed so as to form a plurality of regions in a cylindrical casing 2 as viewed in the axis-L direction, and the hollow fiber membranes 3 are accommodated in the dehumidification space 7 so as to be distributed into the plurality of regions.