High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system
    1.
    发明授权
    High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system 有权
    高低压侧系统涡轮,长叶片和联合循环发电系统

    公开(公告)号:US06182439B2

    公开(公告)日:2001-02-06

    申请号:US09385139

    申请日:1999-08-31

    IPC分类号: F01D528

    摘要: A combined cycle power generation system in which a generator is driven by a steam turbine and a gas turbine includes a steam turbine rotor having a mono-block rotor shaft with blades mounted thereon in multi-stages from a high pressure side to a low pressure side and a casing covering the rotor. An inlet temperature of steam to first stage blades is not less than 530° C. and the rotor shaft is made of a Ni—Cr—Mo—V low alloy steel of bainitic structure having a higher creep rupture strength at the high pressure side than at the low pressure side and a 538° C. and 105 h creep rupture strength not less than 12 kg/mm2 at a central portion, and having mounted thereon at the central portion, first stage blades at the high pressure side or FATT of not more than 20° C. Final stage blades are mounted at the low pressure side having a room temperature V-notch impact value of not less than 4 kg/m, and blades of at least a final stage have a value of blade length in inches times revolution in rpm of not less than 125,000 and are made of martensite stainless steel including 8-13 wt. % Cr.

    摘要翻译: 发电机由蒸汽轮机和燃气轮机驱动的联合循环发电系统包括具有单块转子轴的汽轮机转子,该单块转子轴具有从高压侧到低压侧多级安装的叶片 以及覆盖转子的壳体。 第一级叶片的蒸汽入口温度不低于530℃,转子轴由高压侧具有较高蠕变断裂强度的贝氏体组织的Ni-Cr-Mo-V低合金钢制成, 在低压侧,538℃和105h蠕变断裂强度在中心部分不小于12kg / mm2,并且在中心部分安装在其上,在高压侧的第一级叶片或不是FATT的FATT 超过20℃。最终级叶片安装在低压侧,其室温V形缺口冲击值不小于4kg / m,并且至少最后一级的叶片具有以英寸为单位的叶片长度的值 转速不低于125,000 rpm,由马氏体不锈钢制成,包括8-13wt。 %Cr。

    Steam-turbine power plant and steam turbine
    5.
    发明授权
    Steam-turbine power plant and steam turbine 失效
    蒸汽轮机发电厂和汽轮机

    公开(公告)号:US6123504A

    公开(公告)日:2000-09-26

    申请号:US391945

    申请日:1995-02-21

    摘要: A steam turbine includes a rotor shaft, movable blades assembled on the rotor shaft, fixed blades for guiding inflow of steam to the moving blades, and an inner casing for holding the fixed blades. The rotor shaft and at least a first stage of the movable blades are made of high-strength martensitic steel comprising 0.05-0.20(%) of C, at most 0.15(%) of Si, 0.3-0.7(%) of Mn, 9.5-13(%) of Cr, 0.3-0.7(%) of Ni, 0.05-0.35(%) of V, 0.02-0.15(%) of Nb, 0.01-0.06(%) of N, 0.05-0.5(%) of Mo, 1.0-3.5(%) of W, 2-10(%) of Co and 0.0005-0.03(%) of B and at least 78(%) of Fe (the percentages being given in terms of weight). The inner casings is made of martensitic cast steel comprising 0.06-0.16(%) of C, at most 0.5(%) of Si, at most 1(%) of Mn, 0.2-1.0(%) of Ni, 8-12(%) of Cr, 0.05-0.35(%) of V, 0.01-0.15(%) of Nb, 0.01-0.1(%) of N, at most 1.5% of Mo, 1-4(%) of W and 0.0005-0.03(%) of B and at least 85(%) of Fe (the percentages being given in terms of weight). The rotor shaft has a length of at least 5 (m) and has a minimum diameter of at least 600 (mm) at a portion where the fixed blades are assembled. The first stage of said moving blades has a length of at least 35 (mm) at a blade portion thereof.

    摘要翻译: 蒸汽涡轮机包括转子轴,组装在转子轴上的可动叶片,用于引导蒸汽流入活动叶片的固定叶片以及用于保持固定叶片的内壳体。 转子轴和可动刀片的至少第一级由高强度马氏体钢制成,包括0.05-0.20(%)C,最多0.15(%)的Si,0.3-0.7(%)的Mn,9.5 -13(%)Cr,0.3-0.7(%)Ni,0.05-0.35(%)V,0.02-0.15(%)Nb,0.01-0.06(%)N,0.05-0.5(%) 的Mo,1.0-3.5(%)W,2-10(%)Co和0.0005-0.03(%)B和至少78(%)Fe(百分比以重量计)。 内壳由马氏体铸钢制成,包括C:0.06-0.16(%),最多0.5(%)Si,最多1(%)Mn,0.2-1.0(%)Ni,8-12( %),V 0.05〜0.35(%),Nb:0.01-0.15(%),N:0.01-0.1(%),Mo:1.5%以下,W:1-4(%):0.0005〜 B的0.03(%)和Fe的至少85(%)(以重量计)。 转子轴具有至少5(m)的长度,并且在组装固定叶片的部分处具有至少600(mm)的最小直径。 所述活动叶片的第一阶段在叶片部分处具有至少35(mm)的长度。

    Gas turbine for power generation, and combined power generation system
    8.
    发明授权
    Gas turbine for power generation, and combined power generation system 失效
    发电用燃气轮机组合发电系统

    公开(公告)号:US06546713B1

    公开(公告)日:2003-04-15

    申请号:US09555882

    申请日:2000-06-08

    IPC分类号: F02C618

    摘要: A gas turbine for power generation operated at a turbine nozzle inlet temperature ranging from 1200 to 1650° C., which is improved to obtain a high heat efficiency by making disk blades and nozzles arranged in first to final stages from optimum materials and optimally cooling these disk blades and nozzles, and to obtain a combined power generation system using the gas turbine. The combined power generation system includes a highly efficient gas turbine operated at a turbine nozzle inlet combustion gas temperature ranging from 1200 to 1650° C., and a high pressure-intermediate pressure-low pressure integral type steam turbine operated at a steam inlet temperature of 530° C. or more, wherein the gas turbine is configured such that turbine blades, nozzles and disks are each cooled, and the blades and nozzles are each made from an Ni-based alloy having a single crystal or columnar crystal structure and disks are made from a martensite steel.

    摘要翻译: 用于发电的燃气轮机在1200至1650℃的涡轮喷嘴入口温度下运行,其通过使盘片和喷嘴从最佳材料的第一到最后阶段排列而最佳地冷却,从而获得高的热效率 磁盘叶片和喷嘴,并且获得使用燃气轮机的组合发电系统。组合发电系统包括在涡轮喷嘴入口燃烧气体温度范围为1200至1650℃的高效燃气轮机和高 在530℃或更高的蒸气入口温度下工作的压力 - 中压低压一体式蒸汽轮机,其中燃气轮机被构造成使得涡轮机叶片,喷嘴和盘都被冷却,并且叶片和喷嘴各自 由具有单晶或柱状晶体结构的Ni基合金制成,圆盘由马氏体钢制成。

    Electron microscope
    9.
    发明授权
    Electron microscope 失效
    电子显微镜

    公开(公告)号:US5898177A

    公开(公告)日:1999-04-27

    申请号:US900001

    申请日:1997-07-24

    IPC分类号: H01J37/20

    CPC分类号: H01J37/20 H01J2237/2001

    摘要: A method of operating an electron microscope under a high temperature and the electron microscope are provided. The electron microscope can stably set and efficiently heat a sample to observe and measure high temperature physical properties such as phase transformation, phase transition and the like required for development of a heat resistant material. In the method of operating the electron microscope and the electron microscope, a sample to be observed is set so as to position at a central hole of a double spiral flat filament, the detachable heating stage is fixed to the heating holder using screws of a pivot, and the heating stage is tilted by vertical movement of a crank-shaped arm. The heating stage and the arm are insulated from each other by an insulating body, and current from a power source is conducted by a conductor wire to heat the filament.

    摘要翻译: 提供了一种在高温和电子显微镜下操作电子显微镜的方法。 电子显微镜可以稳定地设定和有效地加热样品,以观察和测量耐热材料显影所需的相变,相变等高温物理性能。 在操作电子显微镜和电子显微镜的方法中,将待观察的样品设置为位于双螺旋扁平细丝的中​​心孔处,可拆卸加热台使用枢轴的螺钉固定到加热支架 并且通过曲柄形臂的垂直运动使加热台倾斜。 加热台和臂通过绝缘体彼此绝缘,并且来自电源的电流通过导线传导以加热灯丝。

    Gas turbine for power generation
    10.
    发明授权
    Gas turbine for power generation 有权
    用于发电的燃气轮机

    公开(公告)号:US06574966B2

    公开(公告)日:2003-06-10

    申请号:US10124406

    申请日:2002-04-18

    IPC分类号: F02C700

    摘要: A gas turbine for power generation operated at a turbine nozzle inlet temperature ranging from 1200 to 1650° C., which is improved to obtain a high heat efficiency by making disk blades and nozzles arranged in first to final stages from optimum materials and optimally cooling these disk blades and nozzles, and to obtain a combined power generation system using the gas turbine. The combined power generation system includes a highly efficient gas turbine operated at a turbine nozzle inlet combustion gas temperature ranging from 1200 to 1650° C., and a high pressure-intermediate pressure-low pressure integral type steam turbine operated at a steam inlet temperature of 530° C. or more, wherein the gas turbine is configured such that turbine blades, nozzles and disks are each cooled, and the blades and nozzles are each made from an Ni-based alloy having a single crystal or columnar crystal structure and disks are made from a martensite steel.

    摘要翻译: 用于发电的燃气轮机在1200至1650℃的涡轮喷嘴入口温度下运行,其通过使盘片和喷嘴从最佳材料的第一到最后阶段排列而最佳地冷却,从而获得高的热效率 磁盘叶片和喷嘴,并且获得使用燃气轮机的组合发电系统。组合发电系统包括在涡轮喷嘴入口燃烧气体温度范围为1200至1650℃的高效燃气轮机和高 在530℃或更高的蒸气入口温度下工作的压力 - 中压低压一体式蒸汽轮机,其中燃气轮机被构造成使得涡轮机叶片,喷嘴和盘都被冷却,并且叶片和喷嘴各自 由具有单晶或柱状晶体结构的Ni基合金制成,圆盘由马氏体钢制成。