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    • 3. 发明授权
    • Method and system for effecting control governing of a steam turbine
    • 实现蒸汽轮机控制控制的方法和系统
    • US4187685A
    • 1980-02-12
    • US876944
    • 1978-02-10
    • Kunio TsujiKatsukuni HisanoAkira SakaiShozo Nakamura
    • Kunio TsujiKatsukuni HisanoAkira SakaiShozo Nakamura
    • F01D17/24F01K13/02
    • F01K13/02
    • A method and system for effecting control governing of a steam turbine wherein the steam chamber of a first stage nozzle is divided into a plurality of steam compartments, control valves each connected to one of the steam compartments are individually operated for controlling the flow rate of steam introduced into the turbine, and the governing of the nozzle is effected by adjusting the flow rate of steam in accordance with a load. At low load, the degree of opening of the control valves is kept constant and the turbine is driven by steam of a reduced pressure by reducing the pressure of the steam at the inlet of the turbine so as to maintain, in a low load region, the volume flow rate of steam for a high load region. To cope with a change in the value of the load, the degree of opening corresponding to a predetermined change in the value of the load is set beforehand for each control valve. When the change in the value of the load is smaller than the predetermined change in the value of the load, the degree of opening of the control valve involved is adjusted. Conversely, when the change in the value of the load is greater than the predetermined change in the value of the load, the pressure of the steam at the inlet of the turbine is controlled.
    • 一种用于实现蒸汽轮机的控制控制的方法和系统,其中第一级喷嘴的蒸汽室被分成多个蒸汽隔间,各自连接到一个蒸汽隔间的控制阀被单独操作以控制蒸汽的流量 引入涡轮机,并且通过根据负载调节蒸汽的流量来实现喷嘴的调节。 在低负载下,控制阀的开度保持恒定,并且通过减小涡轮入口处的蒸汽的压力使涡轮由减压蒸汽驱动,以便在低负荷区域中保持, 高负荷区域的蒸汽体积流量。 为了应对负载值的变化,对于每个控制阀,预先设定对应于负载值的预定变化的开度。 当负载值的变化小于负载值的预定变化时,调节所涉及的控制阀的开度。 相反,当负载值的变化大于负载值的预定变化时,控制涡轮入口处的蒸汽的压力。
    • 9. 发明授权
    • Turbine rotorconstructions
    • 涡轮转子结构
    • US4245950A
    • 1981-01-20
    • US879737
    • 1978-02-21
    • Koki ShiohataMasaharu OhnoFumio FujisawaKazuo SatoSho KusumotoKatsukuni Hisano
    • Koki ShiohataMasaharu OhnoFumio FujisawaKazuo SatoSho KusumotoKatsukuni Hisano
    • F01D5/06F01D3/02F01D5/02F01C3/02
    • F01D3/02F01D5/025Y10T403/7021
    • Steam introduced into a turbine casing from a steam inlet is longitudinally divided and each divided steam portion flows in respective first stages which are disposed on the shaft adjacent to each other. The shaft and a plurality of disks which are manufactured independently are made integral by a thermal shrink. In order to reduce the thermal distortion effects on the shaft caused by keys interconnecting the disks and shaft, first key grooves formed on an outer surface of the shaft and an inner surface of the disks of one first stage and a first key closely disposed in the first key grooves are arranged in symmetry with respect to the center of the shaft, to second key grooves formed on an inner surface of the disk of the other first stage with a second key closely disposed in the second grooves. Other preferred embodiments include dummy grooves and keys to balance the thermal distortion effects of the keys interconnecting the disks and shaft.
    • 从蒸汽入口引入涡轮机壳体的蒸汽被纵向地分开,并且每个分开的蒸汽部分流动在彼此相邻设置在轴上的相应的第一级中。 独立制造的轴和多个盘通过热收缩而成为一体。 为了减少由连接盘和轴的键引起的对轴的热变形影响,形成在轴的外表面上的第一键槽和一个第一级的盘的内表面和紧密地设置在该第一键的第一键 第一键槽相对于轴的中心对称地布置成形成在另一个第一平台的盘的内表面上的第二键槽,具有紧密地布置在第二凹槽中的第二键。 其他优选实施例包括虚拟凹槽和键,以平衡互连盘和轴的键的热变形效应。