Centrifugal separator

A centrifugal separator for cleaning of a gas containing liquid impurities, wherein the centrifugal separator comprises:

• a stationary casing, which encloses a separation space and has an inner wall surface which faces the separation space, wherein the separation space permits flowing of the gas therethrough;
• an inlet for the gas to be cleaned;
• a rotating member, which is provided in the separation space downstream the inlet with respect to the gas flow and arranged to rotate in a direction (r) of rotation around an axis (x) of rotation, wherein the rotating member is adapted to bring the gas to rotation in the direction (r) of rotation for separating, by means of centrifugal forces, at least a main part of the liquid impurities from the gas;
• a gas outlet, which with respect to the gas flow is provided downstream the rotating member for discharge of the cleaned gas;
• and
• a first liquid outlet, which is provided for discharge of the separated liquid impurities, wherein the separating space comprises an annular surface, which extends between the rotating member and the inner wall surface, and where the annular surface is configured to transport liquid impurities radially outwardly to the first liquid outlet.