METHOD TO START STEAM TURBINE PLANT Russian patent published in 2009 - IPC F01K13/02 

FIELD: machine building.

SUBSTANCE: steam turbine plant comprises at least one steam turbine and at least one steam generator to generate steam to actuate steam turbine. Steam turbine plant incorporates at least one bearing structural component that features starting temperature exceeding 250°C. Temperature of steam and aforesaid structural component is continuously measured. Steam is fed into aforesaid structural component after starting the turbine. Steam starting temperature is lower than that of structural component, steam temperature being increased with respect to initial transition value. Starting and initial transition temperatures are selected so that structural component temperature change per unit time is lower than preset limiting value. Structural component temperature is, first, decreased to minimum, then it goes up.

EFFECT: fast preparation for starting, reduced thermal structural strain.

12 cl, 3 dwg