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Its heat-resistant steel with a gas turbine compressor rotor shaft and combined cycle power generation system and compressor and its gas turbines for power generation
Its heat-resistant steel with a gas turbine compressor rotor shaft and combined cycle power generation system and compressor and its gas turbines for power generation
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机译：带有燃气轮机压缩机转子轴和联合循环发电系统的耐热钢以及压缩机和用于发电的燃气轮机
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PROBLEM TO BE SOLVED: To obtain a dynamo gas turbine with high efficiency and high reliability by constituting the integrated rotor shaft for a compressor, in which blades are to be planted, by using an Ni-Cr-Mo-V low alloy steel. ;SOLUTION: Air is compressed by a compressor and supplied to a combustor, and an integrally connected gas turbine is rotated at high speed by the generated combustion gas to drive a dynamo. An integrated rotor shaft 6 for the compressor and the dynamo gas turbine is constituted of an Ni-Cr-Mo-V low alloy steel, where compressor blades 12 of 12 or more stages and turbine blades 3 of about 3 stages are planted. Moreover, this low alloy steel has a composition consisting of, by weight, 0.15-0.40% C, ≤0.1% Si, ≤0.5% Mn, 1.5-2.5% Ni, 0.8-2.5% Cr, 0.8-2.0% Mo, 0.1-0.35% V, and the balance Fe and further containing, if necessary, 0.01-0.1% of either or both of Nb and Ta. Further, in this low alloy steel, 50% fracture appearance transition temperature and 475°C, 105hr creep rupture strength are regulated to ≤20°C and ≥30kg/mm2, respectively.;COPYRIGHT: (C)1998,JPO
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机译：解决的问题：通过使用Ni-Cr-Mo-V低合金钢构成用于压缩机的集成转子轴，从而获得具有高效率和高可靠性的发电机燃气轮机，其中将要植入叶片。 ;解决方案：空气被压缩机压缩并供给燃烧室，并且一体式燃气轮机通过产生的燃烧气体高速旋转，以驱动发电机。用于压缩机和发电机燃气轮机的一体的转子轴6由Ni-Cr-Mo-V低合金钢构成，其中植入了12级或更多级的压缩机叶片12和约3级的涡轮机叶片3。而且，该低合金钢的组成按重量计包括0.15-0.40％的C，0.1％的Si，0.5％的Mn，1.5-2.5％的Ni，0.8-2.5％的Cr，0.8-2.0％的Mo ，0.1-0.35％的V和余量的Fe，并且如果需要，进一步包含0.01-0.1％的Nb和Ta中的任一个或两者。此外，在这种低合金钢中，将50％的断裂外观转变温度和475℃，10 5 hr的蠕变断裂强度调节为≤20℃和≤30kg/ mm 2。 。.版权所有：（C）1998，JPO
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