The role of the turbine mechanical overspeed hammer
A steam turbine is a rotating power machine that converts the energy of steam into mechanical work. Steam turbine. The utility model is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors, ships, propellers, etc.. The utility model can also utilize the exhaust steam or the middle exhaust steam of a steam turbine to meet the heating requirements of production and life.
The flying hammer belongs to the mechanical overspeed protection, OPC belongs to the electric overspeed protection, and the two are alternate, which improves the reliability of overspeed protection. If the hammer does not move during speeding, the OPC will act to ensure that the unit is safely shut down.
Is a part of overspeed protection, when the unit reaches the speed of 3270 rpm, the flying hammer under the action of centrifugal force to move fast, hitting speeding lever mechanism of slide valve lever drive spool movement, fast down, open the safety of oil and oil and oil export pulse, close the main valve and control valve and rotary, stop.
When the unit reaches the speed of 3270 rpm, the flying hammer under the action of centrifugal force to move fast, hitting speeding lever mechanism of slide valve lever drive spool movement, fast down, open the safety of oil and oil and oil export pulse, close the main stop valve and control valve and rotary diaphragm, stop.
