The utility model discloses a kind of gas steam
combined cycle units, comprising: first unit and second unit, respectively equipped with gas
turbine system, form first gas
turbine and second gas
turbine;First gas turbine
water supply pipeline, through first gas turbine shut first valve body and second valve body;Second gas turbine
water supply pipeline, through second gas turbine shut third valve body and fourth valve body;First gas turbine
water supply flow regulating valve, set on first gas turbine water supply pipeline;Second gas turbine water supply flow regulating valve, set on second gas turbine water supply pipeline, including second condenser side regulating valve and second
waste heat boiler side regulating valve, the technical scheme of this gas steam
combined cycle unit can improve FGH
system start-up problem, optimize the FGH water supply
system design of two sets of units, to ensure that under different operating conditions, FGH system can be normally put into operation, improve the efficiency of gas turbine and stabilize
unit load.