STEAM TURBINE POWER PLANT WITH SUPERCRITICAL EXPANSION OF WORKING STEAM Russian patent published in 2021 - IPC F01K11/02 F01K7/32 

FIELD: ship power engineering.

SUBSTANCE: invention relates to the field of ship power engineering and relates to the design of a ship's power plant with electric propulsion and a steam turbine power plant (STPP). Steam turbine plant with supercritical expansion of working steam, containing a steam boiler with an economizer, a steam turbine, a condenser, a feed pump, a steam regenerative air heater, an electric generator, while the steam turbine is made in the form of a single-row speed stage without a guide vane with axial steam supply to the channels of the rotor blades from a control valve in the form of a Laval nozzle with a variable throat section, and the expanding part of the nozzle is formed by the annular cross-section of two identical circular cones with axial displacement relative to each other so that the outer cone mates with the outer diameter of the turbine blades and with the valve seat, and the inner cone rests on the diameter at the base of the turbine blades, while the flow path of the turbine is docked to the flow path of the duct air heater, the steam from which is fed to the condenser, and the condensate from the condenser is fed by the feed pump to the boiler economizer, and the air into the air heater is fed tangentially into the annular space and tangentially removed from it into the boiler furnace volume.

EFFECT: invention allows simplifying the design, control and regulation, increasing efficiency of the STPP.

1 cl, 1 dwg