Pump assembly and method for evacuating a vapor-filled chamber
AssigneeSterling Industry Consult GmbH
InventorsHeiner Kösters, Matthias Tamm, Daniel Schütze
Life of this patent
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Abstract
The invention relates to an assembly comprising a vacuum pump and a chamber, wherein a suction tract extends between the chamber and the vacuum pump. The vacuum pump is a liquid ring machine. According to the invention, a liquid outlet is arranged in the suction tract in order to add liquid to gas sucked in from the chamber. The invention further relates to a method for evacuating a chamber filled with vapor. According to the invention, the vapor is condensed by introducing additional liquid into the suction tract, thus by co-condensation. By supplying liquid selectively only when liquid is required for the condensation of the vapor, water is saved.
Claims17
An assembly produced from a vacuum pump (16) and a chamber (15) comprising an intake tract (17) extending between the chamber (15) and the vacuum pump (16), wherein the vacuum pump (16) is a liquid ring machine and a liquid outlet (18) is incorporated into the vacuum pump (16) in order to mix gas sucked out of the chamber (15) with liquid, and a fresh water connection (20) with a switching valve (19) controlled by a control means (27) is configured for supplying a liquid to one or more of the liquid outlet (18) and an inlet (25) for vacuum pump operating liquid.
A method for evacuating a chamber (15) filled with vapor comprising a vacuum pump (16), which is connected to the chamber (15) by an intake tract (17), said vacuum pump being operated in order to suck the vapor out of the chamber (15), wherein a liquid is supplied through a liquid outlet (18) incorporated into the vacuum pump (16) such that the vapor condenses, and a fresh water connection (20) with a switching valve (19) controlled by a control means (27) is configured for supplying a liquid to one or more of the liquid outlet (18) and an inlet (25) for vacuum pump operating liquid.
Dependencies are inferred from the claim text.