| 摘要 |
PROBLEM TO BE SOLVED: To provide a humidifier, which is capable of improving the amount of water recovery by making the flow turbulent, when a dry gas is fed outside a bulk hollow fiber membrane which is housed in a housing of a hollow fiber membrane module. SOLUTION: In a humidifier 2, a large number of water permeable hollow fiber membranes arranged along the longitudinal direction of a housing are housed in a housing, a moisture is exchanged between gases through feeding the gases having different moisture content inside and outside the hollow fiber membrane, respectively, and a dry gas having less moisture content is humidified. The inner wall of the housing 21a has a structure for generating turbulence. |
