| 摘要 |
<p>PURPOSE:To enhance the heat efficiency of a regeneration apparatus, by at first performing the heat exchange of steam generated in a first regenerator with the dilute aqueous solution sent to the first regenerator and utilizing a part of condensed steam after heat exchange as the heating source of a second regenerator. CONSTITUTION:A dilute aqueous solution 2 of LiCl in a tank 1 is sent to a first regenerator 6 having a heating source 5 such as a heater by a pump 3 and the steam 7 generating by the heating source 5 in the regenerator 6 is sent to the heat exchanger 11 in a second regenerator 10 through the heat exchanger 9 on the way of a steam pipeline 8. The dilute solution 2 is heated by the heat exchangers 9, 13 and conc. in the first regenerator 6 to be sent to the second regenerator 10 through a conc. solution pipeline 12 and scattered on the heat exchanger 11 from a nozzle 14 to be contacted with the open air guided by a fan 15. Because the saturation steam pressure of the conc. solution is higher than the steam partial pressure of the open air in the second regenerator 10, evaporation is succeeded and the aqueous solution is conc. The conc. aqueous solution is returned to the tank 1 from a conc. solution pipeline 17.</p> |
