Sätt och anordning för kontinuerlig avluftning av partikelfri vätska

摘要

Particle free liquid as water is continuously deaerated in a vacuum vessel. The liquid is divided into thin films in the upper part of the vacuum vessel over a packing material which completely fills the cross section of the vessel to the largest part of its extension vertically. The formed liquid films are diverted and reformed during the passage through the packing material in such a way that there is available an incessantly newly shaped exposure area towards the surrounding vapour space in the vessel during a necessary contact time. The deaerated liquid is withdrawn from the lower part of the vessel. The vessel is during the deaeration keept at or close to absolute vacuum.