| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To heighten vapor-recovery efficiency in accordance with an amount of a vapor generated in a tank. <P>SOLUTION: A vapor-recovering device 20 is provided with; a vapor-recovering pipe 80; an adsorption tank 100 which is filled with an adsorbent 90; an exhaust valve 114 and a three-way valve 120 which communicate with the adsorption tank 100; and a returning pipe 130 which returns a fuel component desorbed in the adsorption tank 100 to an underground tank 10. Temperature sensors 141-143 measure the temperatures of the adsorbent 90 charged in the adsorption tank 100 and input electrical detection signals corresponding to the detected temperatures to a control device 150. The control device 150 finds temperature variation rates according to the detection signals from the temperature sensors 141-143. If a temperature variation rate is equal to a preliminarily set prescribed value or below, the control device determines that the adsorption process or the desorption process is finished and executes control processing to make a change to the adsorption process or the desorption process on the basis of the result of the determination concerned. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
