Heat recovery process particularly for combined cycles and apparatus for carrying out the process.

摘要

The present invention relates to a heat recovery process particularly for a combined-cycle gas turbine/steam turbine using, at the outlet from a gas turbine a recuperation boiler in which the water is firstly processed in a degasser (5) connected to a first evaporator and comprising a certain number of pieces of heat exchange apparatus. In this boiler an ultrasupercritical steam cycle is next used with four pressure levels (P1, P2, P3, P4) with intermediate stages of vaporising subcritical fluids.