Cyclone separator for the phase separation of a multiphase fluid stream, steam turbine system having a cyclone separator and associated operating method

A cyclone separator for the phase separation of a multiphase fluid stream, comprising:

• a housing configured substantially with rotational symmetry about a central axis and enclosing a hollow chamber;
• at least one feed line for the fluid stream, configured for feeding in the fluid stream substantially tangentially to an inner wall of said housing;
• at least one discharge line for a gaseous fraction separated out of the fluid stream;
• said hollow chamber, as viewed in a radial direction from said central axis, having an outflow chamber that is substantially circular in cross section and, following said outflow chamber in sequence, a heating chamber, an intermediate chamber, a dryer chamber, and an inflow chamber, each having a substantially annular cross section;
• said inflow chamber being delimited in an outward direction by said housing;
• said heating chamber containing heating elements for heating the gaseous fraction;
• at least one fine separator and at least one assigned condensate-collecting trough being disposed in said dryer chamber;
• at least one condensate discharge pipe connected to said at least one condensate-collecting trough, said at least one condensate discharge pipe being arranged in said intermediate chamber and discharging from said hollow chamber condensate forming in said at least one fine separator during operation thereof;
• and
• wherein a first plane is provided with a first ring of said condensate-collecting troughs and at least a second plane is provided with a second ring of said condensate-collecting troughs, wherein said first ring of said condensate-collecting troughs is assigned a first group of said condensate discharge pipes and said second ring of said condensate-collecting troughs is assigned a second group of said condensate discharge pipes.