wind and water turbines applications - molykote from project sales corp

Dow Corning INTERNAL

Molykote Products are marketed in this region by Project Sales CMolykote Products are marketed in this region by Project Sales Corp, Visakhapatnam Call orp, Visakhapatnam Call +91+91--891891--2564393 Fax +912564393 Fax +91--891891--2590482 2590482 mailto:[email protected]:[email protected]

• Applications of Molykote Specialty Lubricants and Dow Corning Silicone Sealants in the Wind and Water Turbines



Applications for Molykote LubricantsApplications for Molykote Lubricants

Threaded ConnectionsWind turbine

Blades to hub: Paste 1000Hub to tower: G-n PlusRotor anchor: D-321RAssembly: G-Rapid PlusCooler units / Gearbox: P-74 (already specified at Ansaldo)Shrink Disc: G-Rapid PlusShaft hub connections: G-Rapid Plus, D-321RTower construction: D-321R, 7400, 1000


Threaded Connections

Shrink Disc


Threaded connections in yaw slewing bearing, blade slewing bearing, generator, gearbox, and thread bolts of tower

Equipment Application Molykote Feature and benefit

Blades to Hub

Hub to Tower

Rotor anchor

1000Constant coefficient of friction over wide range of various steels and protection coatings

G-n Plus Low coefficient of friction

D-321R Dry service coating, used as top coating to reduce the coefficient of friction

Threaded Connections

Threaded ConnectionsThreaded Connections



Application CaseApplication Case--HubHub

• APPLICATION: Molykote 1000 on Bolts. Bolting the Blades to the Hub

• COMMENTS : Use of Molykote 1000 ensures correct tensioning of bolts therefore better balancing. Good Corrosion Protection is essential as the Wind Mills are mostly installed near to the coasts. The Weight of each blade is 750 kg.



Slides

Threads

G-Rapid PlusD-321R

Reduce friction during the assembly operations

G-Rapid PlusVery low coefficient of friction Allow precise calculation of torque to achieve define clamping force

Shrink Disc

removable machine elements used for to connect a hollow driving shaft with a driven shaft

Shrink DiscShrink Disc



Threaded ConnectionsThreaded ConnectionsWater turbines

Bolts: G-Rapid PlusBolts lubrication in flanges: 3400, TP-42



OthersOthersWater turbines

Open gear boxes and chain lubrication: P-40



Applications on Water TurbinesApplications on Water Turbines

Manufacturers: Pelton, Francis, Kaplan

Antiseize pastes for nuts, screws and so on: Molykote 1000 (Pelton and Kaplan)Molykote G-Rapid plus (on Francis turbines)



Water Turbines type Francise



Water Turbines type Kaplan



Water Turbine type PeltonWater Turbine type Pelton



Applications for LubricantsApplications for LubricantsThreaded Connections

Gas/ steam/ turbines and turbine accessories • Older turbine housings: Paste 1000, HSC plus

• Newer turbine housings: P-37, P-74 (here Paste 1000 and HSC plus only for general applications in the power station)

• Flange lubrication: Paste 1000

• Steam turbine, sliding element bearings for temperature lengthening (pedestal bearings): D-321 R, 3402-C, Longterm 2 plus, G-n plus



Applications for LubricantsApplications for LubricantsThreaded Connections

Gas/ steam/ turbines and turbine accessories (2) • Threaded connections rust loosening and lubrication: Multigliss

• Assembly Aid: Powder Spray

• Corrosion protection: Zink Spray L-0500

• Threaded connections power stations (where MoS2 can be used): D 21

• New press fitting turbine blades: P-37 and P-74 (which do have good fretting corrosion properties)

• Old press fitting turbine blades: Paste 1000 or HSC plus; G-n plus (seldom G-Rapid plus).



ApplicationApplication on on TurbinesTurbines

Manufacturers in Europe:

SiemensAnsaldo (license General Electric) ItalyNuovo Pignone (Italy)Westinghouse

Antiseize paste for nuts, screws aso.: Molykote P-37 and P-74

Grease for the slideways: Molykote Longterm 2 plus



Applications for LubricantsApplications for LubricantsBearings

Wind TurbinesDirect drive: Rotor main bearing: Longterm 2 plusIndirect drive: Yaw and blade bearing: Longterm 2 Plus, Longterm 2 Plus WE

Bearings


Rotor bearing► exposed to extreme dynamic

loadsBlade bearings

► at varying wind speeds, the pitch angles of the rotor blades must be adjustable

Yaw bearing► orient the nacelle to the direction

of wind


Yaw bearing

Blade bearing

Rotor main bearing (direct)

Longterm 2 Plus Longterm 2 Plus WE

False brenelling protection Corrosion protection, sealing compatibility, high load carrying capacity

Longterm 2 Plus Higher temperature, partly used for open bearing gears (blade and tower pitching)

Bearing




Gas/steam turbines and AccessoriesBearings on a drum filter and water inlet bearings: Longterm 2 Plus (specified at EDF)

Metal grid



Bearings Gas/steam turbines and Accessories

Fan and BlowersBearings in fan and blower applications: BG-20, FB-180Bearings in exhaust fan/blade adjust: 41, 44M

Conveyer bearings: BR2 Plus, Longterm 2 plusConveyer bearings, very low temperature: G-4500, 33Bearing Assembly : G-n Plus, D, P-1600O-Ring Lubrication: 55 O-Ring

Bearings in exhaust fan/blade adjust: 41, 44MBG 20 used on bearings in fan applications




Water turbines/gatewaysWater inlet bearings: Longterm 2 Plus

Opening and closing chains, bearings and bushing for inlet of water into the powerGeneral Maintenance

BR2 Plus

Longterm 2 plus

MKL-N



Applications for SealantsApplications for Sealants

Wind turbinesSealing & Bonding

Outer sealing of the Housing: 7093 white

Inner sealing of the Housing: 7093 grey

Shell, typically made out of Fibre Reinforced Plastic (FRP): Dow Corning 732, 7093

Gearbox and welded joints: Dow Corning 732



Wind Turbine Application Sealants Wind Turbine Application Sealants



Wind Turbine Application SealantsWind Turbine Application Sealants

Eolics: sealing and bonding applications



APPENDIXAPPENDIX



All Applications for LubricantsAll Applications for LubricantsThreaded Connections

Wind turbineBlades to hub: Paste 1000Hub to tower: G-n PlusRotor anchor: D-321RAssembly: G-Rapid PlusCooler units / Gearbox: P-74 (already specified at Ansaldo)Shrink Disc: G-Rapid PlusShaft hub connections: G-Rapid Plus, D-321RTower construction: D-321R, 7400, 1000

Water turbinesBolts: G-Rapid PlusOpen gear boxes and chain lubrication: P-40Bolts lubrication in flanges: 3400, TP-42



All Applications for LubricantsAll Applications for LubricantsThreaded Connections

Gas/ steam/ turbines and turbine accessories • Older turbine housings: Paste 1000, HSC plus• Newer turbine housings: P-37, P-74 (here Paste 1000 and HSC plus only for

general applications in the power station)• Flange lubrication: Paste 1000• Steam turbine, sliding element bearings for temperature lengthening

(pedestal bearings): D-321 R, 3402-C, Longterm 2 plus, G-n plus• Threaded connections rust loosening and lubrication: Multigliss• Assembly Aid: Powder Spray• Corrosion protection: Zink Spray L-0500 • Threaded connections power stations (where MoS2 can be used): D 21• New press fitting turbine blades: P-37 and P-74 (which do have good fretting

corrosion properties) • Old press fitting turbine blades: Paste 1000 or HSC plus;

G-n plus (seldom G-Rapid plus).



All Applications for LubricantsAll Applications for LubricantsBearings

Wind TurbinesDirect drive: Rotor main bearing: Longterm 2 plusIndirect drive: Yaw and blade bearing: Longterm 2 Plus, Longterm 2 Plus WE

Water turbinesWater inlet bearings: Longterm 2 Plus

General MaintenanceBR2 Plus

Gas/steam turbines and AccessoriesBearings on a drum filter and water inlet bearings: Longterm 2 Plus (specified at EDF)Fan and Blowers

Bearings in fan and blower applications: BG-20, FB-180Bearings in exhaust fan/blade adjust: 41, 44M

Conveyer bearings: BR2 Plus, Longterm 2 plusConveyer bearings, very low temperature: G-4500, 33Bearing Assembly : G-n Plus, D, P-1600



All Applications for SealantsAll Applications for Sealants

Wind turbinesSealing & Bonding

Outer sealing of the Housing: 7093 whiteInner sealing of the Housing: 7093 greyShell, typically made out of Fibre Reinforced Plastic (FRP): Dow Corning 732, 7093Gearbox and welded joints: Dow Corning 732

wind and water turbines applications - molykote from project sales corp

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