FIELD: power engineering. SUBSTANCE: proposed steam-turbine plant contains steam generator connected with steam superheater, high-pressure turbine, condenser, low-pressure turbine whose cooled condensate is delivered is delivered into deaerator by condensate pump and circulating water after deaerator is delivered into steam generator by feed pump. Plant contains also combustion chamber with fitted-in steam superheater consisting of first and secondary reheats, turbine whose condensate after condenser is delivered into deaerator also by condensate pump. Plant is furnished also with head evaporator and evaporators with their own steam superheaters heated by gases from combustion chamber, regenerator in which circulating water after deaerator is heated by exhaust steam of low-pressure turbine with subsequent partial delivery by means of feed pump into head evaporator with subsequent cascade delivery into evaporators and further on, into common flow after deaerator by means of circulating pump. Steam outlet of steam generator is connected with head evaporator. Steam from said evaporator passes through first reheat steam superheater and gets, after division of flow, by one part into high-pressure turbine and into turbine with outlet condenser, and by other part for secondary reheat in steam superheater. Steam from evaporator after head evaporator gets into low-pressure turbine meeting with waste steam of high-pressure turbine, deaerator operating with steam of last evaporator. EFFECT: increased efficiency of plant. 5 cl, 2 dwg
