STEAM-GAS INSTALLATION Russian patent published in 2010 - IPC F01K23/10 

FIELD: power industry.

SUBSTANCE: steam-gas installation consists of gas-turbine assembly, steam boiler-utiliser with steam generating circuits of two pressures containing economiser and evaporating surfaces of two pressures, super-heater of high pressure steam (h.p.), and steam turbine assembly with condenser and two steam turbines. A steam inlet of the first of steam turbines is communicated with an outlet of the steam super-heater of h.p. The steam outlet of the second steam turbine is communicated with the steam inlet of the condenser. The condensate outlet of the condenser is connected with the condensate inlet of the boiler-utiliser. An intermediary steam super-heater is connected with its steam inlet to the steam outlet of the first steam turbine, while with its steam outlet it is connected with the steam inlet of the second steam turbine. Also the intermediary steam-super-heater is made as a water steam super-heater and is communicated at its steam inlet with the low pressure (l.p.) steam outlet of the boiler-utiliser, and at its heating water inlet and outlet it is correspondingly communicated with water inlet and outlet of the h.p. economiser of the boiler-utiliser.

EFFECT: increased total heat drop obtained in steam turbines due to reduced pressure losses in circuit of intermediary super-heating and due to reduced temperature of steam before intermediary steam super-heater.

1 dwg