GAS TURBINE, METHOD FOR OPERATING THE SAME, AND GAS TURBINE COMBINED ELECTRIC POWER PLANT

PROBLEM TO BE SOLVED: To minimize trip of a gas turbine in switching over coolant. SOLUTION: Steam temperature Ts and rotor chamber air temperature Ta are measured with thermometers 40, 41 (step S1). The measurement results are acquired by measuring apparatuses 131, 132 and are converted to electric...

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Bibliographische Detailangaben
Hauptverfasser:	MOMOTAKE CHIKANORI, FUJITA YASUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	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 NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To minimize trip of a gas turbine in switching over coolant. SOLUTION: Steam temperature Ts and rotor chamber air temperature Ta are measured with thermometers 40, 41 (step S1). The measurement results are acquired by measuring apparatuses 131, 132 and are converted to electric signals. The electric signals are sent to a controlling device 100 after the same are A/D converted by the measuring apparatuses 131, 132, and a difference of both signals is calculated by a subtracter 111 of a processing part 110 provided in the controlling device 100. When an absolute value of the difference ΔT=\|Ta-Ts\| is kept at 10 deg.C or less for 10 continuous times, a control signal is sent from a computing element 112 to a controller 120 as the controlling part (step S2) to control a pressure regulating valve or the like for switching over coolant to steam (step 4).