Method and device for starting pump

Details Method and device for starting pump Method and device for starting pump

1975-08-15

1977-03-29

Husar, C. J.

Rotary kinetic fluid motors or pumps

Method of operation

415500, 290 1R, F01D 1700

Patent

active

040146243

ABSTRACT:
There is disclosed a method for starting a pump, wherein when a pump runner effects the idle running in a runner chamber which is filled with compressed air, a water-pumping-up starting instruction is given, then a drain valve is first closed according to the water-pumping-up starting instruction, the aforesaid drain valve being provided in a draft tube for discharging pressurized water from a runner band chamber of the runner chamber; then compressed air in the runner chamber is discharged therefrom; subequently water is charged into the runner chamber; and after water pressure at the adjacent portion of the runner periphery in the runner chamber has been raised to a given level, a by-pass valve and a main valve in a discharge tube and guide vanes are sequentially opened; and a device for automatically substantiating the method.

REFERENCES:
patent: 3238534 (1966-03-01), Hartland
patent: 3309057 (1957-03-01), Tonooka
patent: 3658436 (1972-04-01), Oishi
patent: 3890059 (1975-06-01), Takase

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