Fossil-fuel burning gas and steam-turbine installation for power generation

摘要

A gas- and steam-turbine installation includes a waste-heat steam generator connected on the exhaust-gas-side behind the gas-turbine (2) and having its heating surfaces connected in the water-steam circulation (24) of a steam turbine (20). A fuel (B)gasification device (132)is connected upstream of the gas turbine combustion chamber via a fuel line (130), the latter containing a saturator (150) in which the gasified fuel (SG) is carried in counter-flow to water (W) circulated through the saturator. A saturator water heat-exchanger (24) for heating the flow of water (W) is connected on the secondary-side into the saturator circulation (152) and receives on the primary side the feed-water extracted from the water-steam circulation (24) of the steam turbine (20).