Turgo Turbine Generator Set(Hydro Turbine)

Turgo Turbine is a kind of impulse turbine suitable for head from 20 to 300 meters. An angle of 22.5o is formed between the center line of the nozzle and the rotational plane of runner. Turgo type is characterized not only by higher flow, even efficiency curve, but also by simple construction, reliable operation, easy maintenance and low cost.
 

I. Turbine Instruction

XJA-W-63/2X14 Francis Horizontal Shaft Hydraulic Turbine
1. Turbine Technical Data List
2. Turbine Technical Data Details

1. Model                                        Turgo Horizontal  XJA-W-63A/2X14
2. Runner Pitch Diameter D:                       63 cm
3. Rotary direction of the generator if viewing from the generator collection ring  Clockwise
4. Rated Speed                       750 rpm
5. Jet speed                          52.43
6. Specific Speed at rated water head 140 m with rated output      125.5 m.kW
7. Discharge at rated water head 140 m and rated output         1.4 m3/s
8. Max. Rated Runaway Speed (nozzle at max. unit runaway open degree position, generator with empty load, max. water head)                         985 rpm
9. Number of nozzle                                   02
10. Runner arrangement                            Hang over the generator shaft end
11. The Noise at 1.0 meter above the spiral case foot pad does not exceed  85dB(A)
12. Weight of Rotary Parts (Runner)                     0.7 T
13. Total Weight of the Turbine                          8.0 T
14. Max. Lifting part in the powerhouse for the main crane    5.5T (turbine case)
15. Runner

1. Bucket Material                       ZG0Cr13Ni4Mo
2. Runner band material                  Cast steel
3. Number of bucket                    16
4. Max. External Diameter × Height       650×320

1. Main Shaft                          share shaft with generator
2. Guiding Bearing                     (Share same bearing with generator)

1. Type                                Sliding, oil cooling
2. Material                            Thrust shell, Radial shell are of Babbitt metal
3. Cooling water consumption            250 L/min
4. Cooling water pressure              0.2~0.3MPa
5. Oil Volume                         150 L
6. Oil No.                             46# Turbine Oil

1. Turbine Case

1. Material                           Q235
2. Size                               5400*3150*1650
3. Inlet Section Area                   0.57 m²
4. Inlet section flow speed              3.6 m/s
5. Drainage Equipment                 Nature drainage

1. Nozzle Mechanics

1. Material
2. Nozzle tip                      :      2Cr13
3. Needle stem                           Q235
4. Quantity                               2 sets

1.  Turbine Weight

1. Total weight of the turbine body           8.0 T
2. Weight of main parts:

Runner                                0.56 T
Turbine Case                            5.5 T
Other                                  1.94 T

1.  Max. Transportation Size

1. Name                                Turbine Case
2. Weight                                5.5T
3. Size (L×W×H)                         2500*1500*1500

1.   Reliability index

Overhaul Interval                          5 years
Total Service Life                          40 years

3. Guaranteed Turbine Performance
(1) Output: At hereunder listed water head and tail water level, when turbine run at rated speed 750 rpm, the Cavitations Erosion is in permitted range, the output is:(2) Efficiency
a. At rated head 140m, rated output 1624 kW, the guaranteed prototype turbine efficiency is no less than 84.5%, under the same operation condition the model turbine efficiency guaranteed value is no less than 84.5%.
b. Under all operation range, the prototype turbine max. efficiency guaranteed value is no less than 84.5%, model turbine max. efficiency guaranteed value is no less than 84.5%.
Table 5.2.05-1    Efficiency Guaranteed Value at different water head and output
(3) Cavitations Erosion Guarantee
Within the warranty period, under the following condition, for 8000 hour operation, the turbine runner metal weight loss due to cavitations erosion will not exceed 0.25 kg.
Within the warranty period, under the following specified minimum output, for no more than 500 hour operation.
Within the warranty period, under the following specified maximum output, for no more than 50 hour operation.
(4) Regulation Guarantee

1. At 140 m water head, 1624 KW output, when dump full load, the maximum speed rise will not exceed 50%.
2. At 140 m water head, 1624 KW output, when dump full load, the maximum pressure rise at the spiral case will not exceed 50%.