| 摘要 |
<p>PURPOSE: To improve the efficiency of enrichment of air with oxygen by cooling a portion of an gas or a production gas and re-pressurizing adsorbers by using the gas after cooled in an adsorptive alternating pressure process for the enrichment of air with oxygen using a molecular sieve zeolite in the adsorbers. CONSTITUTION: Air is made to flow into the adsorber A by being passed through a valve 11A and a product O2 is taken out via a valve 14A and a blower R. Further, the adsorber B is deaerated by the operation of a pump V via a valve 12B, and simultaneously, the adsorber C is filled with the product O2 via valves 15, 13C. Subsequently, the enrichment of air with oxygen is executed by successively proceeding to a deaerating process and a filling process for the adsorber A, the filling process and an oxygen producing process for the adsorber B and the oxygen producing process and the deaerating process for the adsorber C. In such a process for the enrichment of air with oxygen, a piping L14 between the blower R and the valve 15 is provided with a cooling unit device C, thereby cooling a fixed quantity of O2 flowing into the adsorber deaerated through the piping L14, thus efficiency is improved.</p> |
