Patent for utility model No. 129994

The utility model relates to the field of heat power engineering and can be used in the development of new and reconstruction of existing cogeneration steam turbine power plants. A cogeneration steam turbine power plant, the low-pressure cylinder of the LPC 4 of which is designed to be disconnected from the steam supply in the autumn-winter period. Difference: TsND 4 is made with a separate rotor 7, to which a separate electric generator EG2 is connected. обеспечение при переводе теплофикационной паровой турбины на режим complete heating of the possibility of excluding the rotation of the rotor of the low-pressure cylinder 4 without weakening its strength and the need to shut down the power plant. 1 independent p. f-ly, 2 ill.

Scope of use

The utility model relates to the field of heat power engineering and can be used in the development of new and reconstruction of existing cogeneration steam turbine power plants.

State of the art

During the operation of cogeneration turbines during operation in the autumn-winter period in the mode of complete heating, when the minimum steam consumption enters the low-pressure cylinder (LPC), and the impellers of the rotating rotor of the LPC, transmitting torque from the common shaft-wire to the electric generator (EG) , do not generate, but, on the contrary, consume power due to large ventilation losses, the rotor and stator of the LPC have to be cooled to prevent their unacceptable heating.