METHOD FOR INCREASE OF EFFICIENCY OF COMBINED CYCLE INSTALLATIONS

摘要

The invention relates to heat-power engineering, in particular to increase of efficiency of operation of has-steam turbine plants at heat power stations. A method for increase of efficiency provides for heating of feed water to state close to critical point. In the course of multiple throttling a part of that water after each stage of throttling is transformed to steam. Steam is separated from water and is directed for expansion to turbine directly or after heating in steam superheater. The invention promotes economy of fuel, simplification of design and decrease of cost of the plants.