CA2645236A1 - Submersed turbine bearings - Google Patents

Submersed turbine bearings Download PDF

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Publication number
CA2645236A1
CA2645236A1 CA2645236A CA2645236A CA2645236A1 CA 2645236 A1 CA2645236 A1 CA 2645236A1 CA 2645236 A CA2645236 A CA 2645236A CA 2645236 A CA2645236 A CA 2645236A CA 2645236 A1 CA2645236 A1 CA 2645236A1
Authority
CA
Canada
Prior art keywords
lubrication
bearing
fluid
cooling fluid
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA2645236A
Other languages
French (fr)
Inventor
Imad Hamad
Arnaud Guy
Georges Dick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RSW RER Ltd
Original Assignee
GESTION RSW Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GESTION RSW Inc filed Critical GESTION RSW Inc
Priority to CA2645236A priority Critical patent/CA2645236A1/en
Priority to CA2742450A priority patent/CA2742450A1/en
Priority to US13/127,379 priority patent/US20110293404A1/en
Priority to RU2011122527/06A priority patent/RU2011122527A/en
Priority to CN2009801517366A priority patent/CN102369383A/en
Priority to EP09828478.9A priority patent/EP2350519A4/en
Priority to PCT/CA2009/001587 priority patent/WO2010060187A1/en
Priority to BRPI0921474A priority patent/BRPI0921474A2/en
Publication of CA2645236A1 publication Critical patent/CA2645236A1/en
Priority to ZA2011/03274A priority patent/ZA201103274B/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/06—Bearing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10—Submerged units incorporating electric generators or motors
    • F03B13/105—Bulb groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6688—Lubricant compositions or properties, e.g. viscosity
    • F16C33/6692—Liquids other than oil, e.g. water, refrigerants, liquid metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F05B2240/52—Axial thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F05B2240/54—Radial bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/24—Geometry three-dimensional ellipsoidal
    • F05B2250/241—Geometry three-dimensional ellipsoidal spherical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/314—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being inclined in relation to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/02—Turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Abstract

Hydraulic Turbine Bearings are usually made of low friction material sleeve-shaft combination, where the surface in between the shaft and the sleeve is lubricated and cooled down; either using closed loop pressurized water or hydraulic fluid and/or pressurized water using the turbine inlet water head. The present invention consists of using totally sealed roller spherical bearing type assembly and where its lubrication and cooling fluid is totally sealed from the surrounding. This invention has the advantage that allows supporting both axial and radial forces within the same bearing and offers long life- maintenance free operations.

Description

Invention Title: Submersed Turbine Bearings Specifications:

The invention is related to hydraulic submersed turbines. It consists of assembling quantity of two (2) totally sealed maintenance free bearing assemblies supporting and guiding the turbine runner shaft. Its very low friction bearing assemblies are submersed at approximately 15 meters depth. The bearing assemblies allow precise rotation of the turbine runner while minimizing frictions and ensuring perfect handling of both static and dynamic loads generated by the operation of the turbine-electrical generator group. The invention has a built-in self priming, auto filtering of particles in the lubrication and cooling fluid. It also has a built-in lubrication and cooling fluid flow generation and re-circulation closed loop system that allows optimized operation and increases of life cycle of the rotating components while eliminating external pump and filter systems often used to maintain lubrication and cooling fluid required properties.

Claims (14)

1. Bearing assemblies are located at each end of the turbine runner shaft;
2. They consist of spherical roller bearing (1) to guarantee positioning and guiding of the turbine runner;
3. The Submersed Turbine Bearing Assembly includes dynamic rotating friction type floating seals (7), isolating lubrication and cooling fluids from the surrounding fluids. Therefore ensuring sealing for lubrication fluid and ensuring sealing (2) against mixing with external non-cooling and non-lubrication fluids;
4. Self priming of the lubrication and cooling fluid and lubrication and cooling fluid flow generation and re-circulation closed loop system (3);
5. Auto filtering of particles in the lubrication and cooling fluid (4) ensuring continuous ISO
cleanliness level, required to ensure proper long operation life bearing;
6. Turbine runner is rotated by the river free flow. Its rotating shaft (5) is supported by the two end bearings assemblies;
7. A hydraulically designed channels (6) guides the fluid to lubricate and cool down the bearings;
8. Circulation ensures maintaining minimum required cleanliness level in the bearing hosing and spherical rollers paths while maintaining an adequate lubrication fluid film and washing out heat generated by the bearing operation;
9. Inside bearing sleeve is assembled tight onto the rotating shaft, while the external sleeve is sliding inside its housing;
10. Front end bearing can slide inside its housing in order to compensate for expansion and mechanical stress generated by material expansion caused by temperature and/or stress changes and maintaining allowable overall resulting stress;
11. Lubrication and cooling fluid is using bio-degradable environmentally friendly fluid type;
12. Orifice (8) to collect residual water that may enter the sealing and allows evacuating the water towards a properly sized reservoir with adequate life expectancy;
13. Covers (9) ensure that seal interfaces are under static pressure and not dynamic pressure.
14. Optional membrane in the protection cover (11) allows balancing the fluid at the seal level and pressuring the lubrication and cooling fluid;
CA2645236A 2008-11-03 2008-11-03 Submersed turbine bearings Abandoned CA2645236A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA2645236A CA2645236A1 (en) 2008-11-03 2008-11-03 Submersed turbine bearings
CA2742450A CA2742450A1 (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system
US13/127,379 US20110293404A1 (en) 2008-11-03 2009-11-03 Submerged Hydroelectric Turbine Having Self-Powered Bearing Lubricant Circulation, Filtering, and Cooling System and Auto-Adaptive Pressure-Compensation System
RU2011122527/06A RU2011122527A (en) 2008-11-03 2009-11-03 UNDERWATER HYDROELECTRIC TURBINE (OPTIONS)
CN2009801517366A CN102369383A (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system
EP09828478.9A EP2350519A4 (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system
PCT/CA2009/001587 WO2010060187A1 (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system
BRPI0921474A BRPI0921474A2 (en) 2008-11-03 2009-11-03 submerged hydroelectric turbine having self-supporting rolling lubricant circulation system, filtration system, cooling system and self-adjusting pressure compensation system
ZA2011/03274A ZA201103274B (en) 2008-11-03 2011-05-05 Submerged hydroelectric turbine having self-powered bearing lubricant circulation,filtering,and cooling system and auto-adaptive pressure-compensation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2645236A CA2645236A1 (en) 2008-11-03 2008-11-03 Submersed turbine bearings

Publications (1)

Publication Number Publication Date
CA2645236A1 true CA2645236A1 (en) 2010-05-03

Family

ID=42154775

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2645236A Abandoned CA2645236A1 (en) 2008-11-03 2008-11-03 Submersed turbine bearings
CA2742450A Abandoned CA2742450A1 (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2742450A Abandoned CA2742450A1 (en) 2008-11-03 2009-11-03 Submerged hydroelectric turbine having self-powered bearing lubricant circulation, filtering, and cooling system and auto-adaptive pressure-compensation system

Country Status (8)

Country Link
US (1) US20110293404A1 (en)
EP (1) EP2350519A4 (en)
CN (1) CN102369383A (en)
BR (1) BRPI0921474A2 (en)
CA (2) CA2645236A1 (en)
RU (1) RU2011122527A (en)
WO (1) WO2010060187A1 (en)
ZA (1) ZA201103274B (en)

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RU2011122527A (en) 2012-12-10
CA2742450A1 (en) 2010-06-03
CN102369383A (en) 2012-03-07
EP2350519A4 (en) 2013-05-08
ZA201103274B (en) 2012-08-29
US20110293404A1 (en) 2011-12-01
BRPI0921474A2 (en) 2016-01-12
WO2010060187A1 (en) 2010-06-03
EP2350519A1 (en) 2011-08-03

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