Combined cycle system of intercooling combustion gas turbine

• Main Authors: NIE HAIGANG, HU YUNBIAO, WU SEN, GAO FENG
• Format: Patent
• Language: English
• Published: 06.01.2016
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The invention discloses a combined cycle system of an intercooling combustion gas turbine and relates to the technical field of combustion gas turbines. The combined cycle system of the intercooling combustion gas turbine comprises a waste heat boiler, a low-pressure compressor, a high-pressure turbine, a high-pressure compressor, a turbine assembly, an afterburning combustion chamber and an intercooler, wherein the afterburning combustion chamber is arranged between the high-pressure turbine and the turbine assembly; fuel gas exhausted out of the high-pressure turbine is heated again through the afterburning combustion chamber and enters the turbine assembly, and the temperature of exhausted gas of the turbine assembly is increased; the gas exhaust end of the turbine assembly is connected with the air inlet end of the waste heat boiler; the intercooler is located between the low-pressure compressor and the high-pressure compressor. The combined cycle system of the intercooling combustion gas turbine has the advantages that the afterburning combustion chamber is added in the combined cycle system of the intercooling combustion gas turbine, so that the temperature of gas exhausted out of the low-pressure turbine and the power turbine assembly is high, and the efficiency of the waste heat boiler is improved.