| 摘要 |
<p>PURPOSE:To improve the durability of a regeneration device, by providing a branch pipe to switch the waste gas from a main heat exchanger to a regeneration heat exchanger for delivery to an adsorber and precooling the regeneration heat exchanger with a small amount of the waste gas before switchover to heating operation. CONSTITUTION:In the regenerating process of an adsorber 10, valves 30 and 31 are opened before switchover to a heating process to partially supply the flow in a waste gas passage to a regeneration heat exchanger 4 and, after precooling, a three-way valve 7 is switched to close the valves 30 and 31 to supply all of the waste gas to the regeneration heat exchanger 4 so as to lessen the thermal shock. A part of waste gas is thereafter heated by a heater 8 and sent to the adsorber 10 for regeneration of an adsorbent.</p> |
