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US06966171B2 Combined cycle gas turbine system 失效
联合循环燃气轮机系统

Combined cycle gas turbine system
摘要：
A combined cycle gas turbine system is improved to enhance a gas turbine efficiency and a combined efficiency by effecting steam-cooling of a combustor transition piece and a turbine blade. The combined cycle system has a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4) and a turbine (6), a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22) and a low pressure turbine (23), and a waste heat recovery boiler (9). Saturated water of a high pressure pump (27) is partially led into a demineralizer (118) and a water sprayer (116) for cooling steam to be supplied into a moving blade (52). The steam, after being used for cooling, is recovered into a reheater (20). Outlet steam of the high pressure turbine (21) is led into a stationary blade (53) for cooling thereof and the steam is then recovered into an inlet of the intermediate pressure turbine (22). Also, steam of an intermediate pressure superheater (16) is led into a combustor transition piece (54) for cooling thereof and the steam is recovered into the inlet of the intermediate pressure turbine (22). Thus, moving blade cooling steam is reduced and the combined efficiency is enhanced.
摘要（中）：

改进了联合循环燃气轮机系统以通过实现燃烧器过渡件和涡轮叶片的蒸汽冷却来提高燃气轮机效率和组合效率。 联合循环系统具有燃气轮机（8），其具有发电机（1），压缩机（2），燃烧器（3），叶片冷却空气冷却器（4）和涡轮机（6），汽轮机 ）具有高压涡轮（21），中压涡轮机（22）和低压涡轮机（23）和废热回收锅炉（9）。 高压泵（27）的饱和水部分地被引入软化器（118）和用于冷却蒸汽的水喷雾器（116）以供应到动叶片（52）中。 用于冷却后的蒸汽被回收到再热器（20）中。 高压涡轮机（21）的出口蒸汽被引入固定叶片（53）以进行冷却，然后将蒸汽回收到中压涡轮机（22）的入口。 此外，中压过热器（16）的蒸汽被引入燃烧器过渡件（54）以进行冷却，并且蒸汽被回收到中压涡轮机（22）的入口中。 因此，移动叶片冷却蒸汽减少并且组合效率提高。

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