METHOD FOR OPERATION OF MAIN ELECTRICAL AND HEATING LINE WITH CLOSED THERMAL SYSTEM Russian patent published in 2005 - IPC

FIELD: power engineering.

SUBSTANCE: method includes utilization of heat exhausted from additional steam-gas turbine plant for generation of high pressure steam and additional low pressure steam. High pressure steam is sent to and expanded in thermal steam turbine. Low pressure steam is fed to additional low pressure combustion chamber of steam-gas turbine plant, additional fuel is sent same way as steam, and temperature of steam-gas mixture is set mainly at level close to 900°C and it is expanded in low pressure steam-gas turbine. Nutritious water for generation of high pressure steam is fed from deaerator of high pressure heating and electrical line. Into steam-gas mixture, cooled down during generation of low pressure steam, irrigation water is injected, steam component of this steam-gas mixture is condensed, formed condensate is separated and drained into tank for separated water, from which cooled down irrigation water is fed for condensation of steam in steam-gas mixture. Least portion of separated water is used as nutritious water for generation of low pressure steam. Heat of most portion of separated water is used to heat a portion of network water from closed thermal system of main electrical and heating line.

EFFECT: higher efficiency.

2 dwg