会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明专利
    • FUEL SWITCHING DEVICE FOR GAS TURBINE
    • JPS63159628A
    • 1988-07-02
    • JP30644186
    • 1986-12-24
    • HITACHI LTD
    • NISHIJIMA YASUMASATAKAMI TOSHIJI
    • F02C9/40
    • PURPOSE:To suppress the load fluctuation when multiple fuels are switched by using the electric power generated by a generator as the feedback signal to be compared with the fuel flow preset signal and setting the variation signal to the new fuel flow preset signal. CONSTITUTION:Normally, the B fuel 8 corresponding to the fuel flow preset signal 2 is fed to a combustor 10 via a flow controller 5 and mixed with the air from a compressor 9 for combustion. The combustion gas is fed to a turbine 11 to drive a generator 6. On the other hand, when the B fuel 8 is switched to the A fuel 7, the signal from a distributor 3 is sent to controllers 5 to increase the A fuel 7 and decrease the B fuel 8. In this case, the electric power signal generated by the generator 6 is used as the feedback signal and compared with the load preset signal 1 by a comparator 12. The variation signal from the comparator 12 is fed to the fuel flow preset signal 2, and the new fuel flow preset signal is fed to the distributor 3.
    • 8. 发明专利
    • EXHAUST GAS TEMPERATURE CONTROL METHOD OF GAS TURBINE
    • JPS61286537A
    • 1986-12-17
    • JP12613485
    • 1985-06-12
    • HITACHI LTD
    • TANI YUKISUMIADACHI SHIGEKINISHIJIMA YASUMASA
    • F02C3/30F02C9/28F02C9/48
    • PURPOSE:To increase the output of gas turbine associated with an unit for injecting water or steam to a combuster by employing such setting level of exhaust gas temperature as will be a function of water or steam flow for indirect control of combustion temperature. CONSTITUTION:An operating unit 12 will operate f(MW/MA) on the basis of an output signal MW from an air-flow detector 8 for detecting the intake air- flow of compressor and an output signal MA of an injection flow detector 11 for detecting the water (or steam) flow to be injected to a combuster. On the basis of an output signal P2 from compressor delivery pressure detector 9, an operating unit 13 will perform operation of f(P2) while a multiplier 14 will correct the compressor delivery pressure signal to provide a setting level. Feedback signal T4 of exhaust gas temperature detector 10 arranged in the exhaust system of gas turbine is compared with the output signal A from the multiplier 14 through an adder 15 to produce a differential signal which is passed through a proportional integration operating unit 16 to be used as a control signal of fuel flow regulation valve.