Is it leaking from the bottom up or from the top down? Is there a leak in a local area or is there a uniform leak throughout the circular area?
1. The water pressure is too high and the flow rate is too high (adjust the water inlet valve)
2. The angle of the fixed guide vane is incorrect (re-weld)
3, The angle of the moving guide vane is incorrect (re-adjust the angle of the moving guide vane and accumulate the data)
4. The interior surface of the volute is defective. , causing water flow to slow down (check volute surface and repair)
5. The runner speed is too high, causing water to splash (repair according to water flow and rotor speed)
6. The guide vane clearance is not qualified and the sealing measurements are poor (measure the guide vane clearance again and check the seal, reinstall the seal)
There is several yearsanti-leakage neaux in the turbine of the hydraulic generator 300,000
1 Remove the defective stator coil online.
2. Use an electromagnetic wire with the same specifications as the upper wire of the stator coil to replace the upper wire.
3. Install the replacement upper wire into the stator raceway.
4. Connect the two ends of the replacement top wire and the two disconnected ends of the stator coil top wire, and wrap the insulation to replace the connection between the top wire and the disconnected end.
Two anti-leak rings, upper and lower. The anti-leakage ring of the 300,000 hydraulic generator turbine has two anti-leakage rings, upper and lower. The anti-leakage ring is a replaceable sealing structure installed between the Francis turbine wheel, the upper cover and the lower ring to reduce water leakage. Its function is to reducere the loss of volume of the turbine and protect the upper crown and the lower ring of the. wear runner.