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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||060/772; 060/039.182; 122/007.B|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 4 인용 특허 : 20|
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 selectively positioning a steam bypass valve (54). The flow of steam from the steam drum through a cooling steam flow path (46) is controlled by selectively positioning a steam admission valve (50) in the cooling steam flow path. At power levels below a predetermined crossover power level (72), the cooling steam flow is controlled independently from the steam drum pressur...
1. A method for controlling steam flows in a combined cycle power plant having a heat recovery steam generator, an auxiliary steam circuit including a steam admission valve receiving a first flow of steam from a steam drum of the steam generator, and a steam bypass circuit including a steam bypass valve receiving a second flow of steam from the steam drum, the method comprising controlling pressure in and flow from the steam drum as a function of gas turbine power to a value that results in the steam admission valve being at least partially dosed at powe...