Turbine Parts Definitions Flashcards Preview

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Flashcards in Turbine Parts Definitions Deck (31):
1

Provides support for the propeller blades and attachment to the main shaft

Runner hub

1G

2

Curved members on runner which transmit energy from flowing water to the runner hub.

Adjustable runner blades

1H

3

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

4

Conical lowermost extension on the runner which streamlines the turbine

Runner cone

2

5

Changes reciprocating energy to angular force and distributes to wicket gates simultaneously

Gate operating ring

3C

6

Acts as a valve to regulate and equally distribute water flow to the runner blades

Wicket gates

3D

7

The top and bottom wicket gate extension which supports the gate in bearings

Gate stem

3E

8

Member rigidly attached to the gate stem which allows adjustment of wicket gates

Gate lever

3F

9

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

10

Member connecting operating ring to the shear lever

Gate link

3H

11

Weak link connecting shear lever to the gate lever designed to break when and obstruction prevents the gate from closing

Shear pin

3K

12

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

13

Middle circumferential section connecting the inner and outer head covers and providing support for the operating ring

Intermediate head cover

4B

14

Section containing and providing support for the turbine bearing and the packing gland housing

Inner head cover

4C

15

Stationary ring supporting the lower gate stems

Bottom ring

5

16

Stationary upper and lower radiuses sections integral with stay vanes which provide support to the top and bottom turbine structure and direct the water into the gates

Stay ring

6

17

Streamline members which support the stay rings and direct the water through the wicket gate

Stay vanes

6A

18

Stationary ring which surrounds the turbine blades and guides the water past the blades to the draft tube

Discharge ring

8

19

The water passage from the reservoir to the stay ring

Scroll case

9A

20

Metal liner under the discharge ring at the entrance to the draft tube which protects the concrete from erosion

Draft tube liner

18C

21

Metal liner surrounding the wheel pit and lining the concrete wall

Pit liner

19A

22

Platform and supporting structure in the wheel pit above the head cover that facilitates inspections and servicing

Turbine walkway

20

23

Hydraulic cylinder containing a moving piston which converts fluid into force for adjustment of the runner blade angle over the wicket gate position

Servomotor

21

24

Wearing the same boy that is mounted inside the head cover which provides radial loading support for the main shaft

Turbine guide bearing

23

25

Separates the water passage from the atmosphere and restricts water leakage past the shaft into the inner head cover

Packing box

24

26

The member which transmits the power from the runner to the generator

Main shaft

28

27

Connecting flange at either end of the shaft for attachment to the runner or Generator

Coupling flange

28A

28

Protective cover over the coupling bolts or nuts

Nut guard

28B

29

Connects the gate servomotor piston to the operating ring

Connecting rod

35

30

Connects the blade servomotor piston to the crosshead

Operating rod

40

31

Concentric oil pipes passing through the bore of the main shaft transmitting governor oil to the blade servomotor

Oil head pipes or lines

42