EXTREMELY LOW DEW POINT AIR GENERATOR

摘要

PURPOSE:To enhance safety and to reduce the running cost by providing a regenerative dehumidifier to dehumidify the introduced air to an intermediate dew point temp. and a non-regenerative dehumidifier set in series on the downstream side of the former dehumidifier and used to dehumidify the intermediately dehumidified air to the final dew point temp. CONSTITUTION:This generator is provided with one or plural-stage regenerative dehumidifiers 3 and 4 to dehumidify the introduced air to the intermediate dew point temp. and a non-regenerative dehumidier 12 set in series on the downstream side of the dehumidifiers 3 and 4 and used to dehumidify the intermediately dehumidified air to the final dew-point temp. The intermediate dew-point temp is set at -70 to -75 deg.C and the final dew point at <=-90 deg.C, and zeolite is filled in the dehumidifer 12 as a desiccant. Consequently, an extremely low dew point air generator with the safety improved and running cost reduced and capable of generating dry air having <=-90 deg.C dew point temp. is obtained.