Voith Turbo Basics

Basics

Föttinger Principle Operating Principle of the Voith Turbo Coupling

hydrodynamique coupling

Motor

2 | Basics | 13-10-22

Pump

Turbine

Föttinger Principle

3 | Basics | 13-10-22

Oil flow

Pump impeller

Oil flow

Turbine wheel

Variable Speed Couplings

4 | Basics | 13-10-22

The fill level of operating fluid can be varied during operation between „full“ and drained, thus enabling step-less speed control Benefits - Proven design - Low capital costs - Unsensitive to environmental conditions - Almost maintenance free

Animation scoop tube svtl.exe

5 | Basics | 13-10-22

Variable Speed Coupling Types

SVTL

SVNL

SVTW

SVNLG

SVN

SVL Modular

SVNk

MDC

SVTL

Variable Speed Coupling Type SVTL Selfsupporting design of tunnel construction

7 | Basics | 13-10-22

Compact design Economic solution Field of application: - Combined cycle power station - Marine technology - Iron and steel industry - Raw material technology - Chemical and petro-chemical industry - District heating plants - Power stations

Variable Speed Coupling Type SVTL Simplified longitudinal section

1 2 3 4

8 | Basics | 13-10-22

5 6 7 8

Pump wheel Turbine wheel Shell Scoop tube housing Oil sump Oil circulation pump Scoop tube Working oil cooler

1 2 3

6 8 5

4 7

Variable Speed Coupling Type SVTL

9 | Basics | 13-10-22

Performance characteristics variable-speed turbo coupling type SVTL

SVNL

Variable Speed Coupling Type SVNL

11 | Basics | 13-10-22

Ball and roller bearings - Heavy duty design - High power rating - Easy access through horizontally split housing Field of application: - Iron and steel industry - Raw material technology - Chemical and petrochemical industries - District heating plants - Power stations

Variable Speed Coupling Type SVNL Simplified longitudinal section 1 2 3 4

12 | Basics | 13-10-22

5 6

7 8

Pump wheel Turbine wheel Shell Scoop tube housing Oil sump Oil circulation pump Scoop tube Working oil cooler

1 2

3

7

4

6 8

5

Variable Speed Coupling Type SVNL

13 | Basics | 13-10-22

Performance characteristics variable-speed turbo coupling type SVNL

SVNLG

Variable Speed Coupling Type SVNLG Friction bearings. Housing horizontally split

15 | Basics | 13-10-22

-

Almost no wear Higher power rating Load free start External lube oil supply

Field of application: - Marine technology - Chemical and petrochemical industries - District heating plants - Power stations

Variable Speed Coupling Type SVNLG Simplified longitudinal section

1 2 3 4

16 | Basics | 13-10-22

5 6 7 8

Pump wheel Turbine wheel Shell Scoop tube housing Oil sump Oil circulation pump Scoop tube Working oil cooler

1 2

3

7

4

8

6

5

17 | Basics | 13-10-22

Variable Speed Coupling Type SVNLG P T S 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Pump Impeller Turbine Wheel Scoop Chamber Input Output Oil Tank Scoop Tube Housing Scoop Tube Filling Pump Primary Shaft Secondary Shaft Relative Bearing Collar End Bearing Sleeve Bearing Oil Cooler Double Filter Auxiliary Lube Oil Pump

Variable Speed Coupling Type SVNLG

18 | Basics | 13-10-22

Performance characteristics variable-speed turbo coupling type SVNLG

Hydrodynamic Couplings

19 | Basics | 13-10-22

Operating ranges of adjustable couplings 1 Rising torque 2 Constant torque 3 Decreasing torque 4 Parabolic torque 5 Decreasing torque

I, IV II III

Starting range Control range Overload range

Integration of the Variable Speed Coupling into a control circuit Position control circuit

20 | Basics | 13-10-22

Components: - Position controller - Actuator for continuous control - Position feedback

driven machine

motor

scoop tube adjustment

position controller set value 4-20 mA

actual value

actual scoop tube setting value 4-20 mA

Integration of the Variable Speed Coupling into a control circuit pole wheel with pick-up

Process control circuit Components: - Position controller - Process controller

driven machine

motor

speed measurements converter

position controller set value

actual value

actual scoop tube setting value

21 | Basics | 13-10-22

actual value

process controller

set value 4-20 mA actual process value

speed indicator

nominal value 4-20 mA

Geared Variable Speed Couplings

Geared Variable Speed Couplings Principle

Motor

Start Animation

Gear box Variable Speed Coupling

23 | Basics | 13-10-22

Motor

Geared VariableSpeed Coupling

Driven Machine

Driven Machine

Geared Variable Speed Coupling Types

RK Modular R...KGS

R...GS

24 | Basics | 13-10-22

R...A

R...B

Geared Variable Speed Couplings For stepless speed control of various driven machines up to highest powers:

25 | Basics | 13-10-22

Units : over 4 000 Power : up to 18 202 kW Speed : up to 14 822 rpm Applications: Compressors, Boiler feed pumps, Pipeline pumps, Injection pumps, etc.

Geared Variable Speed Couplings Working Principle

26 | Basics | 13-10-22

1 2

Gear stage Hydrodynamic variable speed coupling 3 Scoop tube 4 Electro-hydraulic positioning control (VEHS) 5 Working oil cooler 6 Lube oil cooler 7 Main lube oil pump 8 Oil circulation control valve 9 Working oil pump 10 Auxiliary lube oil pump 11 Duplex filter 12 Oil reservoir

11 6

10

7 1 12

9 2

5 8

3 4

A Proven Principle Numerous Improvements Gearbox Double helical gearing with large tooth width in order to reduce gear center distances. Gears are designed as single-piece forging. The pinion is integral with the shaft and the gear wheel shrink fitted. Coupling Runners made from high alloy steels for highest circumferential speeds.

27 | Basics | 13-10-22

Scoop tube Scoop tube operated by an electro-hydraulic actuator (VEHS) or Pneumatic or Electrical Oil circuit Separate oil circuits with coolers for working oil and lube oil. Closed working oil circuit with mechanically operated oil flow control valve Pumps Mechanically driven working oil and lube oil pump. Electrically driven AOP

28 | Basics | 13-10-22

A Proven Principle Numerous Improvements Clear advantages • Higher technical flexibility • Optimum adaptations a result of the different possible combinations between gearbox and coupling • Compact design • Short delivery Time due to standardized modules • Compact actuator with integrated positioner for direct control (4 - 20 mA) • Integrated rapid startup device • Easier maintenance as a result of modular design

29 | Basics | 13-10-22

Geared Variable Speed Coupling Advantages Power savings and extension of driven machine life compared to throttle control: lower operating costs

Relieved motor start-up and smooth acceleration of heaviest masses

Precise load adaptation of driven machines due to the high control accuracy and fast reaction times Reliability > 99,9% (Evaluation based on units in operation)

Robust and compact design

Vibration damping

Long service life

Easy maintenance, low maintenance costs

Geared Variable Speed Couplings Type RKGS

Geared Variable Speed Coupling Type R..KGS

31 | Basics | 13-10-22

1 Gear 2 Variable-speed turbo coupling 3 Oil pump 4 Scoop tube (adjustable)

1

3

1 2

4

Geared Variable Speed Coupling Type R..KGS A step up gear is located both at the input and output side

32 | Basics | 13-10-22

High power at high speed For particularly high output speeds, e.g. compressors

Power Applications

34 | Basics | 13-10-22

Fluid Couplings in a Thermal Power Plant

35 | Basics | 13-10-22

Features and Benefits -

Power savings and extension of driven machine life compared to throttle control

-

Precise load adaptation of driven machines

-

Highest reliability

-

Vibration damping

-

Relieved motor start-up and smooth acceleration of heaviest masses

-

Robust and compact design

-

Easy maintenance, low maintenance costs

-

Long service life

Scholven Power Plant Main Boiler Feed Pump

36 | Basics | 13-10-22

2 x 21990 kW (Overload) 4904 rpm

Power Applications Boiler feed pump Coal-fired power plant Germany

37 | Basics | 13-10-22

Variable speed coupling

Type: SVTL Power: 1250 kW Speed: 2950 rpm

Power Applications Fan drive Korea Variable speed turbo coupling

38 | Basics | 13-10-22

Type: 750 SVTL 21.2-6,3

Power Applications Boiler feed pump Combined cycle Power plant USA Variable speed coupling

39 | Basics | 13-10-22

Type SVNL 33.2

Power Applications Boiler feed pump Combined Cycle Power Plant USA Variable Speed Coupling

40 | Basics | 13-10-22

Type SVNL 33.2

Power Applications Cogen South P.S. I.D Fan drive

Voith Variable Speed coupling

41 | Basics | 13-10-22

Type: 1000 SVNL 2118,5.3

Power Applications Boiler feed pump Power station Mexico Geared variable speed coupling

42 | Basics | 13-10-22

Type: R15K400 M Power: 2360 kW Speed: 6184 rpm

Power Applications Boiler feed pump Germany

43 | Basics | 13-10-22

Geared variable speed coupling Type: R14 K 400 M invert Power: 387 kW Input Speed: 1491 rpm Output Speed: 4069 rpm

Power Applications Boiler feed pump Germany

Geared variable speed coupling

44 | Basics | 13-10-22

Type: R19 KGS Power: 9860 kW Speed: 4860 rpm

4. Fans Type: SVTL Units: 1

45 | Basics | 13-10-22

Application : Boiler fan / ID fan

5. Coal Mills Type: R...A Units: 1 Power: 1100 KW Speed: 500 rpm

46 | Basics | 13-10-22

Application: Coal mill Greece

47 | Basics | 13-10-22

Sucess of Voith with Chinese EPC companies for Indian Projects • All the projects which are bieng set up by Chinese EPC companies in India are equipped with Voith couplings for BFP drives. •Most of the I.D.Fan drives are equipped with Voith couplings. • Some of the references of projects •WBPDCL – Sagardighi ( 2X300MW) – BFP + ID Fans •DPL - Durgapur (1X300 MW) – BFP + ID Fans •HPGCL – Yamunanagar (2 X 300 MW) - BFP •JSW – Bellary ( 3X300 MW) – BFP + ID Fans •JSW – Ratnagiri (4 X 300 MW) – BFP + ID Fans •KSK – MPPL ( 1X 135 MW)- BFP •Vedanta – Jharsuguda ( 8 X135 MW), – BFP + ID Fans •Vedabta – Jharsuguda (6X600 MW) - BFP

Sucess of Voith with Chinese EPC companies for Indian Projects •LANCO- Amarkantak ( 2X300MW) – BFP • LANCO- Anpara C ( 2X600MW) – BFP

• LANCO- Nagarjuna ( 2X600MW) – BFP •Adani - Tunda (2X300 MW) – BFP •JSW – Barmer (8X 135 MW) - BFP •JSPL – Angul & Raigarh ( 10X135 MW) – BFP + ID Fans

( under discussion ) •KSK – WPPL (4 X 135 MW) – BFP + ID Fans 48 | Basics | 13-10-22

( under discussion ) •Reliance - Rosa ( 2X 300 MW)- BFP + ID Fan ( Under discussion ) •Essar – Mahan ( 2 X 600 MW), – BFP etc.

49 | Basics | 13-10-22