Modular centrifugal separator for cleaning gas

A centrifugal separator for cleaning gas containing contaminants comprising:

• a stationary casing module the stationary casing module comprising:
• a surrounding side wall enclosing a separation space through which a gas flow is permitted;
• a gas outlet for cleaned gas;
• and
• at least one drainage opening for draining separated liquid contaminants from a lower portion of the stationary casing module;
• a rotating module comprising a plurality of separation members arranged in said separation space and being arranged to rotate around an axis of rotation;
• a drive member arranged for rotating the rotating module around the axis of rotation;
• an inlet module arranged axially above said stationary casing module, the inlet module comprising an inlet pipe for supply of gas to be cleaned to said inlet module, wherein the inlet module is in fluid contact with said separation space;
• and
• a liquid outlet module arranged axially below said stationary casing module and configured to permit discharge of liquid contaminants drained from said stationary casing module,
• wherein the liquid outlet module comprises a lower base portion and at least one upwardly extending portion from said lower base portion,
• wherein said at least one upwardly extending portion extends axially along the surrounding side wall of the stationary casing module such that the liquid outlet module forms an open container into which the stationary casing module is arranged, and
• wherein the liquid outlet module is attached to said stationary casing module via said at least one upwardly extending portion, wherein the liquid outlet module forms the open container into which the stationary casing module is axially inserted from an open side of the open container, and wherein the liquid outlet module is attached to said stationary casing module via said at least one upwardly extending portion, the upwardly extending portion being positioned radially outward of the surrounding side wall of the stationary casing module in a portion that directly and radially overlap with plurality of separation members of the rotating module.