Patent ID: 8562716

Claim:
Method for degassing a liquid of a substantially closed liquid circulation system at a working pressure, comprising passing at least a partial flow of the liquid through a restriction into a chamber, allowing the chamber to become partially filled by the partial flow of liquid with a gas head above a level of the liquid accumulated inside the chamber, maintaining a degassing pressure in the chamber, the degassing pressure being higher than atmospheric pressure and lower than the working pressure, separating gas withdrawn from the partial flow of liquid from the partial flow, removing the gas from the chamber, and pumping the degassed partial flow of the liquid back into the substantially closed circulation system, wherein the restriction comprises a nozzle, and the step of passing at least the partial flow of the liquid through the restriction into the chamber comprises spraying at least the partial flow of the liquid through the nozzle into the chamber for obtaining a jet or a mist of the liquid in the chamber, wherein the step of removing the gas from the chamber is effected via a rise pipe having an entry opening allowing escape of gas when the liquid level is below the entry opening and allowing the gas to accumulate in the head when the liquid level is above the entry opening.