Gas dehumidifier and gas dehumidification process

摘要

A dehumidifying system uses a membrane cartridge (16) to filter water vapor from air or other gas introduced into the membrane cartridge via a main pump or compressor (15). Dehumidified gas from the membrane cartridge (16) is then delivered into a system (20) which requires dry gas. The dehumidifying system further includes valve arrangements (18) or additional compressors which provide gas flow through the membrane cartridge when the main compressor is inactive. Therefore, the membrane cartridge (16) receives a substantially continuous flow of gas which maintains the optimal efficiency of the membrane cartridge. In addition to the arrangements which provide this continuous gas flow, a heating coil wrapped around the membrane cartridge raises the temperature of the fiber membranes within the cartridge. The heated fiber membranes are less susceptible to retain moisture which decreases the efficiency of the membrane cartridge.