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

FIELD: power engineering.

SUBSTANCE: heat exhausted from additional steam-gas turbine plant is utilized to generated high pressure steam and additionally low pressure steam. High pressure steam is sent to and expanded in thermal steam turbine. Low pressure steam is sent to additional low pressure combustion chamber of steam-gas turbine plant, to where also additional fuel is directed, temperature of steam-gas mixture is set mainly at level close to 900°C and expanded in low pressure steam-gas turbine. Nutritious water for generation of high pressure steam is taken from high pressure deaerator of main electrical heating line. Into steam-gas mixture, cooled down for generation of low pressure steam, irrigation water is injected, steam component of this steam-gas mixture is condensed, formed condensate is separated and then drained to tank for separated water. 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 up softened nutritious water, which is then deaerated and sent to heating network of open thermal system of main electrical heating line. Irrigation water cooled down during the process is fed for condensation of steam in steam-gas mixture.

EFFECT: higher efficiency.

2 dwg