摘要:
In an atomizer constructed to cool inlet air for a gas turbine by spraying fine droplets of water into the inlet air, a spray nozzle (300) is disposed to spray the finely atomized droplets of water from an outer edge of an atomized airstream into a high-speed zone thereof, towards a central region of the airstream. The atomized airstream meets an airstream of a low-speed zone formed at a downstream side, and after the two kinds of airstreams have been mixed and unified, this mixture is supplied to an axisymmetric compressor. Devices such as a feed water pipe (310) and spray nozzle (300) are placed in the low-speed zone so as not to obstruct the airstream.
摘要:
A control system of an oxygen combustion boiler plant comprising a boiler for burning fuel by a burner and an air port to generate steam using gas including oxygen of higher-concentration than that in air and gas including carbon dioxide of higher-concentration than that in air, exhaust gas circulation means for using, as the gas including carbon dioxide, a part of boiler exhaust gas as circulation exhaust gas, and carbon dioxide capture means for capturing the carbon oxide in the boiler exhaust gas, characterized in that, the control system (400) further comprising: burning rate calculation means (500) for calculating a burning rate of the fuel at a pipe for transferring fuel or in a neighborhood of a burner exit, burning temperature calculation means (600) for calculating a burning temperature of a boiler furnace portion, and oxygen flow rate and exhaust gas recirculation flow rate decision means (700) for deciding an exhaust gas recirculation flow rate and an oxygen flow rate to be fed to the burner and the air port so as to make the burning rate and the burning temperature meet the set values.
摘要:
An electric-generating gas turbine includes a compressor (103) configured to compress air, a combustor (112) configured to generate combustion gas by mixing and combusting the air compressed by the compressor (103) and fuel, a turbine (114) configured to be driven by the combustion gas, and an electric generator (116) configured to generate electricity by the rotational force of the turbine (114), further including a fuel pipe (111) configured to supply fuel to the combustor (112), a fuel control valve (108) provided in the fuel pipe (111), a fuel discharge pipe (203) bifurcated from the fuel pipe (111) between the fuel control valve (108) and the combustor (112), and a fuel discharge valve (120) provided in the fuel discharge pipe (203).
摘要:
A two-shaft gas turbine having high operability is provided. The two-shaft gas turbine (17) includes: a gas generator (15) having a compressor (1), a combustor (20) and a high pressure turbine (2); a power turbine (16) having a low pressure turbine (3); a load (5) connected to the power turbine (16); a motor/generator (6) capable of rotatably driving the gas generator (15) and capable of extracting power from the gas generator (15); electric equipment controlling the rotational driving and the power extraction by delivering electric power between the electric equipment and the motor/generator (6); and a control device controlling the electric equipment, wherein the combustor (20) has a plurality of combustion regions (51a-51d) to which a fuel is supplied through fuel adjustment means which are independent from each other, and the control device controls a delivery amount of the electric power delivered by the electric equipment corresponding to the number of combustion regions (51a-51d) to which the fuel is supplied.
摘要:
A thermal power plant is proposed for achieving high reliability, low material cost, and low construction cost by devising the arrangement and structures of a boiler (B), steam turbines (2, 3), and a flue gas treatment apparatus (101, 102, 103) to reduce a usage amount of high-temperature resistance material and further to reduce a thermal elongation of piping. In a thermal power plant including a 2 pass-type boiler (B) having a furnace (14) for burning fuel, a rear heat recovery area (28) for recovering heat from combustion gas exhausted from the furnace (14), steam turbines (2, 3) are arranged near the rear heat recovery area (28).
摘要:
A drive system for a rotary machine includes a rotary machine including two sets of three-phase stator winding wires and two sets of inverters connected to the same direct-current power supply. Alternating-current terminals of the two sets of inverters are respectively connected to the three-phase stator winding wires of the sets. In the rotary machine, stator winding wires are housed in a plurality of slots to form a stator, the two sets of three-phase stator winding wires are provided and the stator winding wires in the same phase of the sets are started to be wound from the slot positions, phases of electric angles of which are different from each other by 180 degrees, among the plurality of slots and finished being wound in the slot positions, phases of electric angles of which are different from each other by 180 degrees, winding end points of the three-phase stator winding wires of the sets are respectively connected in common, and alternating-current voltages having the same magnitude and opposite phases are applied to the two sets of three-phase stator winding wire.
摘要:
A thermal storage system 1 includes: heat transfer medium that absorbs the solar thermal energy; phase-change material 10a6 that is heat exchanged with the heat transfer medium; and first thermal storage tanks (stratified tanks 10a-10c) in which the phase-change material 10a6 is supported and through which the heat transfer medium flows, wherein a plurality of the first thermal storage tanks (stratified tanks 10a-10c) are present, and the first thermal storage tanks (stratified tanks 10a-10c) are connected in parallel for the heat transfer medium flowing through, when storing the solar thermal energy, while the first thermal storage tanks (stratified tanks 10a-10c) are connected in series for the heat transfer medium flowing through, when exploiting the stored solar thermal energy. The thermal storage system is capable of exploiting the solar thermal energy more efficiently than conventional ones, while considering a variation in the amount of solar thermal energy.
摘要:
A two-shaft gas turbine having high operability is provided. The two-shaft gas turbine (17) includes: a gas generator (15) having a compressor (1), a combustor (20) and a high pressure turbine (2); a power turbine (16) having a low pressure turbine (3); a load (5) connected to the power turbine (16); a motor/generator (6) capable of rotatably driving the gas generator (15) and capable of extracting power from the gas generator (15); electric equipment controlling the rotational driving and the power extraction by delivering electric power between the electric equipment and the motor/generator (6); and a control device controlling the electric equipment, wherein the combustor (20) has a plurality of combustion regions (51a-51d) to which a fuel is supplied through fuel adjustment means which are independent from each other, and the control device controls a delivery amount of the electric power delivered by the electric equipment corresponding to the number of combustion regions (51a-51d) to which the fuel is supplied.
摘要:
An electric-generating gas turbine includes a compressor (103) configured to compress air, a combustor (112) configured to generate combustion gas by mixing and combusting the air compressed by the compressor (103) and fuel, a turbine (114) configured to be driven by the combustion gas, and an electric generator (116) configured to generate electricity by the rotational force of the turbine (114), further including a fuel pipe (111) configured to supply fuel to the combustor (112), a fuel control valve (108) provided in the fuel pipe (111), a fuel discharge pipe (203) bifurcated from the fuel pipe (111) between the fuel control valve (108) and the combustor (112), and a fuel discharge valve (120) provided in the fuel discharge pipe (203).