Coal-fired unit and gas turbine combined power generation system
A technology for gas turbines and coal-fired units, which is applied in joint combustion mitigation, machine/engine, mechanical equipment, etc., can solve the problems of low energy utilization efficiency of exhaust flue gas, low thermal cycle efficiency, large heat loss, etc. The effect of energy utilization efficiency, utilization rate improvement, and power generation efficiency improvement
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[0039]The present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] figure 1 The flow chart of the combined cycle sub-system of conventional million coal-fired units and conventional gas turbines without heat and mass exchange is shown. Coal-fired units include generators, coal-fired boilers 3, steam turbines, condensers, low-pressure heater systems, deaerators, high-pressure heater systems, and auxiliary systems such as pumps and pipelines, which are connected in sequence to form a closed cycle system. Gas turbine combined cycle The system includes a gas turbine 7, a generator, and a lower power station. The lower power station includes a waste heat boiler 1, a generator, a lower steam turbine 20, a lower condenser 21, and auxiliary systems such as pumps and pipelines to form a closed circulation system. The waste heat boiler and gas turbine 7 flue gas The outlets are connected, and the flue gas exhausted by the gas turbine 7...
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