Patent ID: 6312328
Filing Date: 2001-11-06
Classification: B01D,F24F,H01L,Y10S

Abstract:
A system for producing and supplying a clean dry air in a clean dry air producing apparatus equipped essentially with an air compressor, a catalytic purification unit and an adsorptive purification unit, and supplying the clean dry air into a clean room of a semiconductor, high-density recording medium or liquid crystal manufacturing plant; the system comprising:a transportation system having a storage, a conveyor, and an equipment, which are located in the clean room;a supply passage for supplying the clean dry air to the transportation system and/or the equipment;a recycling passage for recycling a used clean dry air in the transportation system and/or the equipment to the transportation system and/or the equipment; anda used clean dry air recycling apparatus having a fan-driving expansion turbine for expanding the clean dry air, being located on the supply passage; and a recycling fan located on the recycling passage, the recycling fan being driven by a power generated by the expansion turbine.