STEAM TURBINE PLANT Russian patent published in 2008 - IPC F01K17/04 

FIELD: power engineering.

SUBSTANCE: proposed steam turbine plane includes steam generator, steam turbine with high and intermediate pressure cylinders connected to steam generator by live steam pipe. The latter are provided with rotors and stators with spaces for cooling their high temperature sections. Plant is provided also with steam-to-steam heat exchanger connected by heating medium input with live steam pipeline and by output, with spaces to cool high pressure cylinder. Steam-to-steam heat exchanger is connected by heated medium input with cold reheat steam pipeline on section after check valve and by output, with hot reheat pipeline before stop valve. Moreover, heated medium channels in steam-to-steam heat exchanger are combined by manifold connected with spaces for cooling high temperature sections of intermediate pressure cylinder. Invention makes it possible to generate steam of required parameters for cooling heat-stressed units of turbine under all operating conditions without constant additional control of steam flow rate.

EFFECT: provision of steam of required parameters for cooling heat stressed units of turbine under all operating conditions without constant additional control of flow rates.

2 cl, 1 dwg