HUMIDIFICATION DEVICE FOR HUMIDIFYING PROCESS GASES AND FUEL CELL ARRANGEMENT COMPRISING SAME

摘要

A humidification device for humidifying process gases, in particular for fuel cells, having a stack of repeating components, including a steam-permeable membrane, a first layer arrangement arranged on a first side of the membrane having a first flow layer for conducting a process gas to be humidified, a multiplicity of flow channels running parallel to the membrane, a second layer arrangement arranged on a second side of the membrane having a second flow layer for conducting a humidified gas including a multiplicity of flow channels running parallel to the membrane, and two protective films which adjoin the second flow layer on both sides and have a multiplicity of through-openings.

主权项

1. A humidification device for humidifying process gases for fuel cells, the humidification device comprising a stack of repeating components comprising:
a water vapor-permeable membrane; a first layer arrangement arranged on a first side of the membrane comprising:
a first flow layer for conducting a process gas to be humidified, comprising a plurality of flow channels running parallel to the membrane; and a second layer arrangement arranged on a second side of the membrane comprising:
a second flow layer for conducting a humidified gas comprising a plurality of flow channels running parallel to the membrane; andtwo protective films that adjoin the second flow layer on both sides and are arranged between the membrane and the second flow layer, and that have a plurality of through-openings and, at least in an active area, have the through-openings, and have a free area in the range of 30 to 80%.