PURPOSE: To improve a recovery speed and a recovery efficiency by eliminating a differential pressure between a pressure system and a storage vessel, then sucking it to increase a pressure in the system, reducing a pressure in the vessel, and recovering a low-boiling point medium to the vessel.
CONSTITUTION: After valves 8 to 10 are opened so that a differential pressure between a pressure system 1 and a storage vessel 2 is eliminated, the valve 10 is closed, a compressor 5 is driven, a vapor of a low-boiling point medium is sucked from the vessel 2 via a recurrent conduit 4 to reduce the pressure. And, simultaneously, a pressure in the system 1 is increased. And, when a predetermined differential pressure is obtained, the compressor 5 is stopped, the valve 10 is opened, the medium is again recovered to the vessel 2 via a recovery conduit 3 as liquid until the differential pressure is eliminated. This operation is repeated, and all are recovered. Thus, the recovery speed and efficiency of the medium can be increased with a light-weight apparatus.
FURANTEISHIEKU YANDA
KARERU KOBAJIIKU
IJII SHIYAARA
ANTONIIN TACHIYOUN
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