| 摘要 |
<p>PURPOSE:To diminish the energy loss in a gas purifying apparatus of a refrigeration adsorption method by constituting the apparatus of a double structure consisting of the internal and external cylinders, and incorporating both an adsorption cylinder into the internal cylinder and a sheathed heater into the adsorption cylinder. CONSTITUTION:A gaseous raw material is introduced into a feed pipe of the gaseous raw material and cooled via a heat exchanger 13 plus a hose 18 and flowed into the adsorption cylinder 9 which is incorporated in the inside of the internal cylindrical vessel to remove the impure gases and discharged from a drawing-out pipe 15 as the purified gas through the heat exchanger. At this time, liquid nitrogen is fed into the inside of the internal cylindrical vessel from a feed pipe 16 for liquid nitrogen to cool the adsorption cylinder. In case of regenerating the adsorbent, liquid nitrogen is drawn out of the internal cylindrical vessel though a drawing-out pipe 17 for liquid nitrogen and furthermore the vessel is evacuated with a vacuum pump and electricity is conducted to a sheathed heater 5 to heat the adsorbent and the impure gases are desorbed and removed by flowing the regeneration gas reversely to the case of the purification.</p> |
