Improved valving assembly for a pressure swing adsorption apparatus

摘要

Pressure swing adsorption apparatus includes two adsorption vessels 10 and 12 (each having a bed of particulate adsorption material) which are provided with lower conduits 14 and 18 respectively and upper conduits 16 and 20 respectively. The apparatus includes a pressurized gas inlet conduit 48, a product gas conduit 50 and a vent conduit 46. There are an upper valve assembly 24 and a lower valve assembly 22. The upper valve assembly 24 includes a valve housing 26 and a rotary valve controller 28 disposed therein for selectively placing the upper conduits 16 and 20 of adsorption vessels 10 and 12 in fluid flow communication with one another and with the product conduit 50. The lower valve assembly 22 includes a similar valve housing and rotary valve controller for selectively placing the lower conduits 14 and 18 of the adsorption vessels 10 and 12 in fluid flow communication with one another and with the pressurized gas inlet conduit 48 and the vent conduit 46. IMAGE