| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a trap device capable of securely recovering a substance having low solidification temperature and liquefaction temperature in a gas stream and preventing evaporation of cooling medium to reduce maintenance cost. <P>SOLUTION: This trap device is provided with an outer tank 2 provided with a gas flow-in port 4 in a side wall part on one side and a gas flow-out port 5 in a side wall part on the other side, an inner tank 10 in which a support shaft part 12 provided protrudedly in an upper part of a bottomed cylindrical vessel part 11 arranged in the outer tank 2 to store cooling medium C is rotatably supported, a rotary driving device 20 rotating and driving the support shaft part 12, a heat exchanger 30 immersed in the cooling medium C stored in the vessel part 11, a discharge passage 32 discharging heat absorbing refrigerant which flows out of a supply passage 31 supplying refrigerant R into the heat exchanger 30 and the heat exchanger, and a supply port supplying cooling medium C into the vessel part 11, and a liquid layer 17 composed of liquid D floating on a liquid surface of the cooling medium C to suppress evaporation of the cooling medium. <P>COPYRIGHT: (C)2004,JPO</p> |
