Turbine Parts Definitions Flashcards
Provides support for the propeller blades and attachment to the main shaft
Runner hub
1G
Curved members on runner which transmit energy from flowing water to the runner hub.
Adjustable runner blades
1H
Component inside the hub which changes the angle of the adjustable blades via movement of the operating rod to which it is rigidly attached.
Crosshead
1M
Conical lowermost extension on the runner which streamlines the turbine
Runner cone
2
Changes reciprocating energy to angular force and distributes to wicket gates simultaneously
Gate operating ring
3C
Acts as a valve to regulate and equally distribute water flow to the runner blades
Wicket gates
3D
The top and bottom wicket gate extension which supports the gate in bearings
Gate stem
3E
Member rigidly attached to the gate stem which allows adjustment of wicket gates
Gate lever
3F
Member which floats on the gate stem and transmits energy from One gate link to the gate lever by way of the shear pen
Shear lever
3G
Member connecting operating ring to the shear lever
Gate link
3H
Weak link connecting shear lever to the gate lever designed to break when and obstruction prevents the gate from closing
Shear pin
3K
Outer circumferential section providing support for the upper gate stems containment and channeling of water leakage from around the upper gate stems
Outer head cover
4A
Middle circumferential section connecting the inner and outer head covers and providing support for the operating ring
Intermediate head cover
4B
Section containing and providing support for the turbine bearing and the packing gland housing
Inner head cover
4C
Stationary ring supporting the lower gate stems
Bottom ring
5