METHOD FOR OPERATING A GAS TURBINE COMBINED HEAT POWER PLANT AND A GAS TURBINE COMBINED HEAT POWER PLANT

摘要

1. A method of operating a gas-turbine combined heat and power plant comprising a compressor unit (2) and a turbine unit (1), wherein at least one device (4) that is present in the station that produces flue gases by a combustion chamber (5) produces useful work installed in front of the turbine unit (1), in which water and / or steam is injected by heat exchange with a hot gas stream after the turbine unit (1) and / or in the compressor channel (13), and water and / or steam is directed into the gas stream in front of the chamber (5) combustion and / or sludge and in the combustion chamber (5) in such quantities that at least 80% of the oxygen contained in the air in the flow is consumed during combustion in the combustion chamber (5), and in which the heat carrier used in the heating device (11) is heated heat selected by the flue gas condenser (9) located in the flue gas stream (7) after the turbine installation (1), characterized in that the fuel gas stream after the turbine installation (1) is supplemented with flue gases from the additional combustion chamber (16), while oxygen for combustion for this additional combustion chamber is supplied from the inlet air humidifier (18), and water and heat are taken from the flue gas stream (7) after the flue gas condenser (9) using an additional condenser (17), as a result of which the flue stream (7) gas is additionally dried, and water and heat taken from this stream are sent to the air entering the compressor unit (2) by means of a humidifier (18) of the inlet air. 2. The method according to claim 1, wherein the gaseous products of combustion are fed to the turbine unit (1) under a pressure of 50-300