Rotor turning apparatus for a steam turbine generator
OwnerNaif Ahmed Yahya ALFAIFI, Yahya Mohammed BAYDHI +1inventors
InventorsNaif Ahmed Yahya ALFAIFI, Yahya Mohammed BAYDHI, Jaber Ibrahim ALASMARI
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Abstract
The present disclosure discloses a rotor turning apparatus for turning a rotor of a steam turbine generator comprising a pneumatic motor and a fixture assembly which frictionally engages with an outer surface of a gear assembly of a steam turbine generator, and which frictionally engages with an outer surface of the pneumatic motor. When the fixture assembly is in the clamped configuration, the pneumatic motor is mechanically coupled to the gear assembly of the steam turbine generator, such that the pneumatic motor is able to turn a rotor of the steam turbine generator via the gear assembly
Claims15
A rotor turning apparatus for turning a rotor of a steam turbine generator, the apparatus comprising:
- a pneumatic motor;
- and
- a fixture assembly, the fixture assembly comprising:
- a first clamp, the first clamp comprising a first pair of hemispherical portions;
- and
- a second clamp, the second clamp comprising a second pair of hemispherical portions;
- wherein an inner radius of the first pair of hemispherical portions is sized so that an inner surface of the first clamp is configured to frictionally engage with an outer surface of a gear assembly of a steam turbine generator, when the fixture assembly is in a clamped configuration;
- wherein an inner radius of the second pair of hemispherical portions is sized so that an inner surface of the second clamp is configured to frictionally engage with an outer surface of the pneumatic motor, when the fixture assembly is in the clamped configuration;
- and
- wherein when the fixture assembly is in the clamped configuration, the pneumatic motor is mechanically coupled to the gear assembly of the steam turbine generator, such that the pneumatic motor is able to turn a rotor of the steam turbine generator via the gear assembly.
A method of turning a rotor of a steam turbine generator, the method comprising:
- tightening a first pair of hemispherical portions of a fixture assembly towards frictional engagement with an outer surface of a gear assembly of the steam turbine generator, wherein the gear assembly is coupled to the rotor of the steam turbine generator;
- coupling a pneumatic motor to the gear assembly;
- tightening a second pair of hemispherical portions of the fixture assembly towards frictional engagement with an outer surface of the pneumatic motor, such that the pneumatic motor is spatially fixed relative to the gear assembly;
- and
- feeding compressed air through the pneumatic motor coupled to the gear assembly, thereby causing the rotor of the steam turbine generator to turn.
Dependencies are inferred from the claim text.