Francis Turbine Spiral Case Francis Turbine Spiral Case and Wicket
Gate Control Adjustable Wicket Gate Link Rode Check Window in
Spiral Case Wicket Gate (Guide Vanes) Control Francis
Turbine Generator Unit PLC Autotmatic Governor (Hydraulic Pressure
Unit) Electric Butterfly Valve Francis Turbine Generator
Installation (1000KW + 1600KW ) Francis turbine is suitable for
middle and high water head, from 15 meter to 300 meters. The merits
of this turbine include good operation stability, impacted
structure, and relatively higher average efficiency. Vertical and
horizontal shaft arrangements are both available. It is one of the
most widely used turbines. Sample: HLA551C-WJ-50 Francis Horizontal
Shaft Hydraulic turbine 1. Guaranteed Turbine Performance Output:
At hereunder listed water head and tailwater level, when turbine
run at rated speed 1000rpm, and the Cavitation Erosion is in
permitted range, the output is: Net water head (m) Output (kw) Max.
Output (kw) Designed Water head 33.7 543.3 kW 574.3 Efficiency: At
rated head 33.7 m, rated output 543.3kW, the guaranteed prototype
turbine efficiency is no less than 89%, under the same operation
condition the model turbine efficiency guaranteed value is no less
than 92%. Under all operation range, the prototype turbine max.
Efficiency guaranteed value is no less than 89%, model turbine max.
Efficiency guaranteed value is no less than 92.7%. Regulation
Guarantee At 33.7 m water head, 543.3 KW output, when dump full
load, the maximum speed rise will not exceed 60%. At 33.7 m water
head, 543.3 KW output, when dump full load, the maximum pressure
rise at the spiral case will not exceed 50%. 2. Turbine Technical
Data Details Model HLA551C-WJ-50, Francis Horizontal Shaft Runner
Pitch Diameter D: 60cm Rotation Direction if viewing from the ND
end of the generator: CW Rated Speed 1000rpm Specific Speed at
rated water head 33.7 m with rated output 543.3 m. KW Discharge at
rated water head 33.7 m with rated output 1.84 m3/s Max. Runaway
Speed (guide vane at max. Unit runaway open degree position,
generator with empty load, max. Water head) 1962r/min Turbine Air
Admission Type Natural Air Admission The Noise at 1.0 meter
distance from the spiral case does not exceed 85dB(A) Max. Leakage
when the Guide Vane is Closed 4.5 L/S Weight of Rotary Parts
(Runner) 0.3T Total Weight of the Turbine 6.3 T Max. Lifting part
in the powerhouse for the main crane 4.5T (Spiral case assembly)
Runner Material ZG0Cr13Ni4Mo Main shaft material 20SiMn Main shaft
seal method labyrinth + Water Splash ring Guide Bearing Type
Material Thrust bushing and radial bushingare both Babbit alloy
metal Cooling water consumption 30 L/min Cooling water pressure
0.2~0.3MPa Oil Volume 200 L Oil No. 46# Turbine Oil Spiral Case
Material 16Mn Drainage Equipment Nature drainage Draft tube
material 16Mn Water Distributor Mechanism Material Guide Vane:
ZG0Cr13Ni4Mo Front, back cover: ZG230-450 Guide Vane Shaft Bushing:
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