Rotary valve for two bed vacuum pressure swing adsorption system

摘要

A dual-chambered, four-ported rotary valve with a rotatable drum having peripheral openings is used to selectively connect vacuum and/or air sources and a vent to absorption chambers in a two-bed VPSA (vacuum pressure swing absorption) system to replace separate valves and produce low cost enriched oxygen, via reduced power, increased reliability, and reduced complexity and cost. <IMAGE>