OPERATION METHOD FOR A PUMPING-EJECTION APPARATUS AND PUMPING-EJECTION APPARATUS FOR REALISING THIS METHOD

摘要

The present invention pertains to the field of jet-generation techniques and essentially relates to a method that first involves pumping a gaseous medium using a gas-vapour ejector and feeding said medium into a counter-current condenser-separator in which a condensing liquid medium is supplied simultaneously. The pressure of the liquid-medium saturated vapours is lower than the pressure of saturated water vapours. In the condenser-separator, the liquid medium is used for condensing the water vapour as well as the easily-condensable components. A portion of the vapour condensate is removed from the latter. The remaining portion of the vapour condensate as well as the condensed components as then removed and supplied to an inlet separator. The non-condensed components of the vaporous and gaseous medium are pumped out of the condenser-separator using a first-stage ejector. The water from the inlet separator is removed through a water discharge duct, while the condensate is removed towards a first-stage separator. In the latter, the aqueous residue is separated from the liquid medium, and the liquid medium mixed with the condensate is further fed towards the inlet of a pump while the water is discharged through the duct. The apparatus of the present invention comprises a gas-vapour ejector, a barometric counter-current condenser-separator as well as an inlet separator. The ejector nozzle is connected to a vapour source. The ejector outlet is connected to the condenser-separator which is in turn connected to the gas inlet of the first-stage ejector as well as to the inlet separator. The condenser separator comprises condensed-water outlets as well as a liquid-medium supply device. The inlet separator is connected to the first-stage separator.