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    • 1. 发明授权
    • Method of controlling operation of multistage hydraulic machines
    • 多级液压机械运行控制方法
    • US4255078A
    • 1981-03-10
    • US9928
    • 1979-02-05
    • Sachio TsunodaMasaharu Nonaka
    • Sachio TsunodaMasaharu Nonaka
    • F04D15/02F03B15/02F03B15/04F03B15/18F01D17/00F01D21/00
    • F03B15/02Y02E10/226
    • In a method of controlling guide vanes of a multistage hydraulic machine including a plurality of stages interconnected by return passages of the type wherein under an abnormal condition which occurs when the operation of a water wheel or a pump is stopped or when the load of the water wheel is interrupted or the input of the pump is interrupted due to a fault of the machine, the guide vanes are closed such that the degree of opening of the guide vanes of a higher pressure stage is maintained to be always equal to or smaller than the degree of opening of the guide vanes of a lower pressure stage, the guide vanes of the lower pressure stage are not completely closed and maintains a predetermined small degree of opening when the guide vanes of the higher pressure stage are completely closed.
    • 一种用于控制多级液压机械的引导叶片的方法,该多级液压机械包括多个级联,所述多级通过这种类型的返回通道相互连接,其中在水轮或泵的操作停止时或在水的负载下发生的异常情况下 由于机器的故障,车轮被中断或泵的输入中断,导向叶片被关闭,使得较高压力级的导向叶片的打开程度保持等于或小于 低压级的导向叶片的打开程度,当高压级的导向叶片完全关闭时,低压级的导叶不完全关闭并保持预定的小的开度。
    • 4. 发明授权
    • Method for operating pumps
    • 操作泵的方法
    • US4406578A
    • 1983-09-27
    • US221332
    • 1980-12-29
    • Sachio TsunodaKatsunori Shirasu
    • Sachio TsunodaKatsunori Shirasu
    • F03B15/04F03B3/10F03B15/00
    • F03B15/005F03B3/103Y02E10/223Y02E10/226
    • A method for operating pumps in a pumping-up power plant having a single speed reversible pump turbine and a booster pump, the booster pump being provided in a branch pipe which is provided in parallel with a portion of a draft tunnel between the pump turbine and a lower reservoir, is disclosed. The method includes the steps of initiating the closing of a first inlet valve at the discharge side of the pump turbine, disconnecting the pump turbine and the booster pump simultaneously from an outer electric power system to which the pump turbine and the booster pump are connected, after an opening of the first inlet valve is closed to a predetermined value, and then closing the first inlet valve completely.
    • 一种用于在具有单速可逆泵涡轮机和增压泵的泵送发电厂中操作泵的方法,所述增压泵设置在分支管中,所述分支管与所述泵涡轮机和所述泵涡轮机之间的通风通道的一部分平行设置 公开了一个较低的水库。 该方法包括以下步骤:启动在泵涡轮机的排放侧处关闭第一入口阀,同时从泵涡轮机和增压泵连接的外部电力系统断开泵涡轮机和增压泵, 在第一入口阀的打开闭合到预定值之后,然后完全关闭第一入口阀。
    • 6. 发明授权
    • Multistage hydraulic machines and methods of controlling operations
thereof
    • 多级液压机及其操作方法
    • US4472103A
    • 1984-09-18
    • US387368
    • 1982-06-11
    • Ichiro YamagataSachio Tsunoda
    • Ichiro YamagataSachio Tsunoda
    • F03B15/04F03B3/18F03B15/06F01D17/00
    • F03B3/18F03B15/06F03B3/183Y02E10/223Y02E10/226Y10S415/91
    • A multistage hydraulic machine such as a pump/turbine having at least three pressure stages in which the highest and lowest pressure stages are provided with movable guide vanes the degree of opening of which are variable, and the other intermediate pressure stages are provided with stationary guide vanes the degree of opening of which are not variable. The movable and stationary guide vanes are simultaneously or independently controlled in accordance with a change of an operational condition at the time of steady operation in a manner such that the degree of opening of the movable guide vanes of the lowest pressure stage becomes relatively larger or smaller than that of the stationary guide vanes in a high flow-rate range or in a low flow-rate range, respectively, while maintaining the degree of opening of the movable guide vanes of the lowest pressure stage to be equal to or smaller than that of the highest pressure stage.
    • 具有至少三个压力级的多级液压机例如泵/涡轮机,其中最高和最低压力级设置有可移动的导向叶片,其开度是可变的,而另一个中间压力级设置有静止导轨 叶片的开度是不变的。 根据稳定运行时的运行状态的变化,可动和固定的导叶同时或独立地进行控制,使得最低压级的可移动导向叶片的开度变得相对较大或更小 分别在高流量范围或低流量范围内的固定导向叶片的压力等于或小于最低压力级的可移动导向叶片的打开程度等于或小于 最高压力阶段。
    • 9. 发明授权
    • Method for operating pumps
    • 操作泵的方法
    • US4363597A
    • 1982-12-14
    • US213231
    • 1980-12-05
    • Sachio TsunodaKatsunori Shirasu
    • Sachio TsunodaKatsunori Shirasu
    • F03B15/04F03B3/10F03B15/00
    • F03B15/005F03B3/103Y02E10/223Y02E10/226Y10S415/91
    • A method for operating pumps in a pumping-up power plant having a single speed reversible pump turbine and a booster pump, the booster pump being provided in a branch pipe which is provided in parallel with a portion of a draft tunnel between the pump turbine and a lower reservoir, is disclosed. The method for operating the pumps comprises the steps of, closing an inlet valve at the discharge side of the pump turbine, closing a portion of the draft tunnel which is in parallel with the branch pipe, opening the branch pipe, starting the pump turbine in air as a pump, starting exhaustion of the air remaining inside the pump turbine when the rotation speed thereof reaches a predetermined value, starting the booster pump after the exhaustion is started, and opening the inlet valve at the discharge side of the pump turbine after the rotation speed of the booster pump reaches a predetermined value.
    • 一种用于在具有单速可逆泵涡轮机和增压泵的泵送发电厂中操作泵的方法,所述增压泵设置在分支管中,所述分支管与所述泵涡轮机和所述泵涡轮机之间的通风通道的一部分平行设置 公开了一个较低的水库。 用于操作泵的方法包括以下步骤:关闭泵涡轮机排放侧的入口阀,关闭与分支管平行的通风管道的一部分,打开分支管,启动泵涡轮机 空气作为泵,当其旋转速度达到预定值时开始剩余在泵涡轮内部的空气,在排气开始之后启动增压泵,并在泵涡轮机的排出侧之后打开入口阀 增压泵的转速达到预定值。
    • 10. 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。