PROCEDURE FOR TREATING THE GAS FLOW, OPERATING IN THE FINAL PART OF THE STEAM TURBINES AND THE EQUIPMENT FOR PERFORMING THIS PROCEDURE

摘要

The invention "Procedure for treating the steam flow operating in the final part of steam-turbines and the equipment performing this procedure" applied in the field of thermo power-plants with condensation and of the nuclear power plants. The aim of this invention consists in the implementation of the final part of steam turbines in a reduced number of turbine parts, by transferring a part of the flow, 40 DIVIDED 60 %, preferably 50 %, from upstreams the final part, respectively the last 2 or 3 stages, into a secondary turbine which drives the boiler feed water supply pump, with the final part producing more power by the increase of the air extraction efficiency from the condenser by means of an additional assembly for reduction of the steam amount in the air-steam mixture, extracted therefrom, as well as by reducing the humidity in the steam passing through the final part, especially through the last stage, by a separator assembly placed between two successive stages, passed through by the whole steam flow which reduces the effect of braking and corrosion of the drops on the rotoric blades.