EXHAUST RE-CIRCULATION TYPE GAS TURBINE SYSTEM AND COMBINED CYCLE GENERATOR FACILITY WITH THE GAS TURBINE SYSTEM

• Main Authors: MATSUO HITOSHI, KUBO YOSHIFUMI, TATEISHI AKITAKA, TAJIMA KATSUHIKO
• Format: Patent
• Language: English
• Published: 23.01.2001
• Edition: 7
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; 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; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To contrive stable operation of an exhaust re-circulation type gas turbine system with a simple structure by uniformly mixing the exhaust gas and fresh air so as to be supplied to a compressor without increasing the size of the facility for re-circulating the exhaust air. SOLUTION: This gas turbine system is provided with a compressor 1 for compressing air for combustion introduced through a filter 11, a combustion device 20 for igniting air compressed by the compressor 1 in the presence of a fuel and for supplying the high-temperature and high-pressure gas to the gas turbine, and an exhaust re-circulation duct 10 for taking a part of the exhaust gas after driving the gas turbine such that a part of the exhaust gas is mixed with fresh air so as to be used as the air for combustion. In this case, the exhaust port of the exhaust re-circulation duct 10 is connected to the upstream side of the filter 11.