METHOD OF OPERATION OF EXTRACTION TURBINE PLANT Russian patent published in 2007 - IPC F01K17/02 

FIELD: heat power engineering.

SUBSTANCE: invention can be used at heat electric generation plants operating with extraction turbines. According to proposed method, steam from power generating boiler is supplied to high-pressure cylinder, and steam from waste-heat recovery boiler of single-circuit steam-gas plant is supplied to following cylinder. Condensate is heated in low-pressure heaters and deaerator. Feed water is heated in high-pressure heaters with extraction of steam to last high-pressure heater in direction of feed water flow from exhaust of high-pressure cylinder. Part of condensate after deaerator is directed to waste-heat recovery boiler. System water is heated in boilers. To increase power, heat load and economy of extraction turbine plant, compartment of staged after steam extraction of corresponding high-pressure heater are removed from following cylinder and stages with higher flow capacity are installed in their place. After deaerator, supply of feed water to waste-heat recovery boiler in amount equal to flow rate of steam to following cylinder from waste-heat recovery boiler is provided.

EFFECT: improved operation of extraction turbine plant.

1 dwg