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7509794 |
Waste heat steam generator
The invention relates to a waste heat steam generator of a gas fired and steam powered generator. Said generator comprises a waste heat boiler to which exhaust gas of a gas turbine can be supplied....
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7237383 |
Method and device for extracting water in a power plant
A method according to the invention and a corresponding device ( 1 ) designed to cool the exhaust gas ( 15 ) of a gas turbine to below its dew point. Water ( 25 ) accumulating hereby can be used...
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7191598 |
Gas turbine by-pass system
A gas turbine by-pass system is used between a gas turbine generator outlet nozzle and the inlet of a heat recovery steam generator (HRSG). The system allows operators to divert gasses from the...
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7107774 |
Method and apparatus for combined cycle power plant operation
Methods and apparatus are disclosed for starting up a combined cycle plant using a startup duct to connect an auxiliary engine to the inlet of a plurality of HRSGs or other heat recovery systems....
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6966172 |
Gas turbine exhaust passage and damper system for same
A gas turbine exhaust passage is realized which may suppress the radiation of strong ultra low frequency noise to the outside without amplifying the turbulence of an high speed exhaust gas flow...
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6945052 |
Methods and apparatus for starting up emission-free gas-turbine power stations
In a power generation plant having at least one gas turbine cycle with heat-recovery boiler ( 4 ) and at least one steam turbine cycle operated via the heat-recovery boiler ( 4 ), the gas turbine...
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6877320 |
Turbine arrangement and a method of operating a turbine arrangement
The invention concerns a turbine arrangement comprising a gas turbine unit with a compressor ( 10 ), a combustion chamber ( 12 ) and a turbine expander ( 14 ). The turbine arrangement also has a...
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6851265 |
Steam cooling control for a combined cycle power plant
A component cooling steam flow control scheme for a combined cycle power plant ( 12 ). Steam pressure in the steam drum ( 40 ) of a waste heat recovery steam generator ( 36 ) is controlled by...
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6829898 |
Gas turbine combined plant and method of operating the same
A piping guides exhaust gas of a gas turbine to a heat recovery steam generator (HRSG). The piping is provided at an outlet of the exhaust gas and is branched into two portions at a branch portion...
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6606848 |
High power density combined cycle power plant system
A system and method for increasing the specific output of a combined cycle power plant and providing flexibility in the power plant rating, both without a commensurate increase in the plant heat...
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6598399 |
Integrated power plant and method of operating such an integrated power plant
An integrated power plant comprises a gas-turbine set with a compressor, a combustion chamber and a gas turbine, a heat-recover boiler arranged downstream of the gas turbine, and a water/steam...
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6422022 |
Apparatus and methods for supplying auxiliary steam in a combined cycle system
To provide auxiliary steam, a low pressure valve is opened in a combined cycle system to divert low pressure steam from the heat recovery steam generator to a header for supplying steam to a second...
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6269626 |
Regenerative fuel heating system
A combined cycle cogeneration power plant includes a combustion turbine formed by an inlet for receiving fuel, an inlet for receiving air, a combustor for burning the combustion fuel and the air,...
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6266953 |
Method of operating a gas and steam turbine plant
A method of operating a gas and steam turbine plant includes operating a gas turbine with a fuel to produce an expanded working medium and generating steam for a steam turbine from heat contained...
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6263662 |
Combined cycle power generation plant and cooling steam supply method thereof
A combined cycle power generation plant includes a gas turbine plant, a steam turbine plant operatively connected to the gas turbine plant, an exhaust gas heat recovery boiler for generating steam...
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5992138 |
Method for operating a gas and steam-turbine plant and plant working according to the method
A gas and steam-turbine plant includes a waste-heat steam generator downstream of a gas turbine on the exhaust-gas side. The waste-heat steam generator has a high-pressure preheater connected into...
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5881551 |
Heat recovery steam generator
A heat recovery steam generator system which includes a plurality of side waterwalls defining an enclosure and a waterwall divider extending within the enclosure to define first and second chambers...
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5640842 |
Seasonally configurable combined cycle cogeneration plant with an organic bottoming cycle
A seasonally configurable combined cycle cogeneration plant of the type having a gas turbine unit for producing power and hot exhaust gases, includes a heat recovery water heater for receiving the...
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5628183 |
Split stream boiler for combined cycle power plants
A process and equipment for generating useful power comprising a special split stream heat recovery boiler 108 in combination with a gas turbine 20 and a steam turbine 80 to form a combined cycle....
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5595059 |
Combined cycle power plant with thermochemical recuperation and flue gas recirculation
Combined cycle power plants are disclosed that utilize a stream of compressed flue gas and fuel that has been passed through a reformer (a thermochemical recuperator) to increase its thermal and...
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5461853 |
HRSG boiler design with air staging and gas reburn
A heat recovery steam generator receives combustion gas from a gas turbine exhaust. A duct burner spans an inlet plenum of the heat recovery steam generator and staged exhaust gas is branched from...
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5419284 |
Exhaust-gas fully fired type boiler and method of waste heat recovery using the same
A waste heat recovery method can provide heat recovery from exhaust gases, full firing of exhaust gases, and auxiliary burning, either simultaneously or independently. Such method is carried out by...
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5365730 |
Combined gas and steam turbine system
A combined gas and steam turbine system includes a steam turbine having a water/steam loop and a high-pressure stage in the water/steam loop. The high-pressure stage has a preheater and a...
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5174107 |
Combined power generating plant
The present invention has been realized in order to treat noxious and combustible gases, which are exhausted during the start-up operation of a composite coal gasification-power plant and/or...
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5101772 |
Heat recovery system
There is disclosed an apparatus for burning a waste gaseous stream having a residual heating value represented by a heat of combustion of from 50 to 900 BTU/SCF. to heat an intermediate heat...
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4998408 |
Apparatus for generating electrical and/or mechanical energy from at least a low grade fuel
An apparatus for generating electrical and/or mechanical energy from at least a low-grade fuel comprises a closed circuit in which steam is formed in a steam boiler fired with low-grade fuel, the...
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4578944 |
Heat recovery steam generator outlet temperature control system for a combined cycle power plant
In a combined cycle plant boiler an inlet temperature is adjusted or controlled while concurrently modulating the IGV's and the load of the gas turbine and the attemperator of the boiler, and...
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4532413 |
Steam generator heated by combination of electric heat and condensation of contaminated process steam
A steam generator assembly, particularly for use in connection with the mechanical preparation of pulp, for generating pure steam required in a subsequent process, such as drying of proper in a...
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4453323 |
Method and system for recovering energy from hot pressurized waste
Disclosed is a method, a system and an improved butterfly valve usable therein for recovering energy from a continuous supply of hot pressurized particulate-laden flue gas. This gas is conducted to...
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4353207 |
Apparatus for removing NOx and for providing better plant efficiency in simple cycle combustion turbine plants
In a single cycle combustion turbine power plant, a dry catalytic NOx removal module is disposed in the turbine exhaust stack. A waste heat exchanger system includes an economizer coil and a pair...
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4184324 |
Combined cycle electric power plant with coordinated plural feedback turbine control
A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat...
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4136643 |
Waste heat steam generator
The waste heat steam generator employs two parallel channels for receiving flows of exhaust gas from a gas turbine. In one channel, the exhaust gas flow is heated by a supplemental burner to a...
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4109613 |
Steam boilers
There is always a danger of slagging on and/or corrosion of the tubes of the highest temperature superheater bank and, if present, reheater bank when burning heavy bunker fuel oil. Therefore a...
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4085708 |
Steam boilers
Described herein is a waste heat steam boiler which is capable of using as secondary combustion air, the exhaust gases from a steam turbine. The boiler has burners which are fed with primary...
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4055151 |
Waste heat boiler
The invention is a valve especially a divertor valve for diverting hot gas to a boiler or to a duct by-passing the boiler and for controlling the amount of gas flowing through the boiler. The valve...
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4054107 |
Marine waste heat steam generator
A stem generator with its sections arranged for the limited space available in a marine installation. The heated surfaces are exposed to both the products of combustion of original fuels and the...
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3974644 |
Combined cycle electric power plant and heat recovery steam generator having improved multi-loop temperature control of the steam generated
A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat...
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3934553 |
Combined wall burner and flameholder for HRSG
In a combined cycle power plant, gas turbine exhaust gas is passed through a heat recovery steam generator (HRSG) wherein it may be reheated upstream from a boiler tube section prior to passing...
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3153402 |
Steam generator
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3001513 |
Method of production and arrangement of steam boilers heated by highly aggressive gases
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2926493 |
Gas turbine with waste heat steam generator
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2825311 |
Waste-heat boiler
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