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    • 11. 发明授权
    • Casings of hydraulic machines
    • 液压机箱
    • US4218182A
    • 1980-08-19
    • US949094
    • 1978-10-06
    • Sachio TsunodaKiyoshi Harada
    • Sachio TsunodaKiyoshi Harada
    • F03B3/16F03B11/02F03B3/02
    • F03B3/16Y02E10/223Y02E10/226
    • In a casing of a hydraulic machine of the type comprising a stay ring including a pair of opposing annular plates and a plurality of stay vanes fixed therebetween to form stay vane flow passages between the stay vanes, and a spiral case disposed on the radially outside of the stay ring, the stay vane passages and the spiral case are proportioned such that the ratio n of the area 2.pi. R.sub.o B of a circle encircling the outer periphery of the stay vanes and the cross-sectional area .pi. R.sub.s.sup.2 of the flow passage in the spiral case is from 1.9 to 2.5, and that the ratio (R-R.sub.o) /R.sub.s =l is larger than 0.75 where R.sub.s represents the radius of the cross-section of the flow passage in the spiral case taken along a plane containing the axis of the shaft of the hydraulic machine and intersecting at right angles with the axis of an inlet to the spiral case, R the distance between the axis of the shaft and the center of the flow passage in the spiral case, R.sub.o the radius of the stay vanes to the outer periphery thereof, and B the height of the stay vane flow passages at the periphery of the stay vanes.
    • 在一种液压机械的壳体中,该液压机械包括一个止动环,该止动环包括一对相对的环形板和固定在它们之间的多个止动叶片,以在支撑叶片之间形成止动叶片流动通道,并且在径向外侧 保持环,撑杆叶片通道和螺旋壳体的比例使得环绕叶片外周的圆的面积2 pi RoB的比率n和流动通道的横截面积pi Rs2在 螺旋壳体为1.9〜2.5,并且比率(R-Ro)/ Rs = 1大于0.75,其中Rs表示沿着包含轴线的平面截取的螺旋状壳体中的流路的横截面的半径 的液压机轴,与螺旋壳体的入口轴线成直角相交,R是轴的轴线与螺旋形壳体中的流道中心之间的距离,Ro为停留半径 叶片到外围 y,B是在叶片的周边处的叶片流路的高度。
    • 12. 发明授权
    • High head pump-turbines
    • 高压泵水轮机
    • US5290148A
    • 1994-03-01
    • US847494
    • 1992-03-12
    • Sachio TsunodaHiroshi TanakaIchiro YamagataShigeto FujikiYoshikazu KobayashiAkira Terasaki
    • Sachio TsunodaHiroshi TanakaIchiro YamagataShigeto FujikiYoshikazu KobayashiAkira Terasaki
    • F03B3/10F03B3/12F03B11/04F01D5/10F04D29/22
    • F03B3/10F03B3/12F05B2200/26F05B2200/262Y02E10/223Y02E10/226
    • When the trigonometric function of the phase lag of the hydraulic excitation of the runner vanes, which varies in accordance with the combination of the number of runner vanes and the number of guide vanes of a high head pump/turbine, is denoted by cos(.theta..sub.R n), the thickness of the crown along a circle of a diameter at a mid point of the diameter of the outermost periphery of the runner is denoted by t.sub.MC, the thickness of the band is denoted by t.sub.MB, the mean thickness of the crown at the outer peripheral portion of the runner is denoted by t.sub.C, the mean thickness of the band is denoted by t.sub.B, and the rigidity ratio of the crown and band to the runner vane is denoted by K.sub.R taking the rigidity of the runner vane as a reference, the moment coefficient C.sub.MO which is a function of cos(.theta..sub.R N) and the rigidity ratio K.sub.R is selected to be less than 0.5 in accordance with the value of cos(.theta..sub.R n), and relations t.sub.C /t.sub.MC .ltoreq.1 and t.sub. B /t.sub.MB .ltoreq.1 are selected when the value of cos(.theta..sub.R m) is positive and relations t.sub.C /t.sub.MC .ltoreq.1 and t.sub.B /t.sub.MB .ltoreq.1 are selected when the value of cos(.theta..sub.R n) is negative.
    • 当流道叶片的液压激励的相位滞后的三角函数根据流道叶片的数量与高压头泵/涡轮机的导向叶片的数量的组合而变化时,由cos(( θ)Rn)中,以流道的最外周直径的中点处的直径圆的顶部的厚度由tMC表示,带的厚度由tMB表示,平均厚度 流道外周部的冠部由tC表示,带的平均厚度由tB表示,并且以流道叶片的刚度为基准的KR表示冠和带与流轮叶片的刚度比 作为参考,根据cos((θ)Rn)的值,将cos((θ)RN)和刚度比KR的函数的力矩系数CMO选择为小于0.5,以及关系tC / tMC 当cos((θ)Rm)的值为pos时,选择<= 1和t B / tMB <= 1 当cos((θ)Rn)的值为负时,选择tC / tMC <= 1和tB / tMB <= 1的关系。
    • 15. 发明授权
    • Control method for multi-stage hydraulic machine
    • 多级液压机控制方式
    • US4412779A
    • 1983-11-01
    • US343215
    • 1982-01-27
    • Sachio TsunodaShinsaku Sato
    • Sachio TsunodaShinsaku Sato
    • F03B15/04F03B3/10F03B15/00F01D17/00
    • F03B3/10F03B15/005Y02E10/223Y02E10/226Y10S415/91
    • A multi-stage hydraulic machine comprises a rotatable shaft; a plurality of runners fixed to the shaft and arranged from a highest-pressure stage to a lowest-pressure stage; runner chambers in which are respectively housing the runners; a return channel for connecting adjacent ones of said runner chambers with each other; movable wicket gates provided at least in the highest-pressure stage and capable of moving between a position in which the movable wicket gates block the channel and a position in which the movable wicket gates open the channel; and a casing connected to the highest-pressure stage. In a control method for the hydraulic machine, the wicket gates are closed and highly pressurized water is fed through a feed pipe in an outer circumferential portion of the runner chamber of the highest-pressure stage defined inside of the movable wicket gates, said water sequentially reaching the lower pressure stages through the return channels. The air at the central portion of each of the stages is then exhausted in a sequential manner from the highest-pressure stage to the lowest-pressure stage.
    • 多级液压机包括可旋转的轴; 固定在所述轴上并从最高压级到最低压级的多个流道; 分别容纳跑步者的跑道室; 用于将相邻的所述流道室彼此连接的返回通道; 至少在最高压力级设置的移动检票口门能够在可移动检票口门挡住通道的位置与可移动检票口门打开通道的位置之间移动; 以及连接到最高压级的壳体。 在液压机的控制方法中,小门关闭,高压水通过限定在可移动小门口内部的最高压级的流道室的外圆周部分中的进料管进给,所述水依次 通过返回通道到达较低的压力级。 然后每个级的中心部分的空气以从最高压级到最低压级的顺序排出。
    • 16. 发明授权
    • Method of controlling operation of Francis type pump turbines
    • 弗朗西斯型水轮机的运行控制方法
    • US4346304A
    • 1982-08-24
    • US210238
    • 1980-11-25
    • Sachio TsunodaKaneo Sugishita
    • Sachio TsunodaKaneo Sugishita
    • F03B15/00F01D15/10
    • F03B15/00Y02E10/226Y10S415/91
    • In a Francis type pump turbine, for the purpose of switching the operation of a synchronous dynamoelectric machine from synchronous condenser operation wherein compressed air is admitted into a runner chamber to force down water level therein so as to cause a runner to rotate in air, to a synchronous generator operation, the air is released from the runner chamber and an inlet valve and guide vanes are completely or nearly completely closed. Then the inlet valve and guide vanes are gradually opened until a predetermined degree of opening is reached while maintaining the degree of opening of the guide vanes to be larger than that of the inlet valve. After the predetermined degree of opening, both the inlet valve and the guide vanes are gradually opened. But at this time the degree of opening of the inlet valve is maintained to be larger than that of the guide vanes. To switch from the generator operation to the condenser operation the same characteristic curves are traced in the opposite direction.
    • 在弗朗西斯型泵式水轮机中,为了将同步电动机的运行从同步冷凝器运行切换到目的,其中压缩空气进入流道室以迫使其中的水位下降,从而使流道在空气中转动, 同步发电机操作,空气从流道室释放,入口阀和导叶完全或几乎完全关闭。 然后,进口阀和导向叶片逐渐打开直到达到预定开度,同时保持导向叶片的开度大于入口阀的开度。 在预定开度之后,入口阀和引导叶片都逐渐打开。 但此时入口阀的开度保持大于导向叶片的开度。 为了从发电机操作切换到冷凝器运行,相反的特性曲线在相反方向上进行跟踪。