OXYGEN CONCENTRATOR Russian patent published in 1998 - IPC

FIELD: chemical engineering. SUBSTANCE: concentrator has compressor, pneumatic distributor, and two adsorbers. Adsorber outlets are connected to throttle outlets and oxygen collector inlets. Concentrator is also provided with control unit whose outputs are connected with controlling inputs of pneumatic distributor and normally closed pneumatic valve. Effective operation of adsorbers is chosen from following relationships: , h_ef-20r, Q^k ≥ 25Q, and P₁ > P₂, where Q^k is airflow in compressor outlet, l/min; h_ef effective height of adsorbers, dm; Q specified productivity of oxygen concentrator, l/min; α sorbent nature-related coefficient varying within the range 0.048 to 0.058; P₁ gage pressure in adsorber outlet, atm; P₂ gage pressure in compressor, atm; r adsorber radius, dm; c specified oxygen concentration in adsorber outlet, vol %; K₁ and K₂ exponents of power meeting inequalities: 0.41 < K₁< 0.58 and Ц0.37 < K₂ < -0.26. EFFECT: increased productivity of concentrator and decreased its dimensions. 6 cl, 6 dwg