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Model “ML” Turbomaster Multistage Centrifugal Compressor with Magnetic Bearings

Model “ML” Turbomaster Multistage Centrifugal Compressor with Magnetic Bearings. Nantes, France May 2000. Terminology. Turbomaster YORK Multistage Centrifugal Compressor Series “M” & “ML” Series “M” Compressor with Fluid Film Bearings Series “ML”

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Model “ML” Turbomaster Multistage Centrifugal Compressor with Magnetic Bearings

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  1. Model “ML” Turbomaster Multistage Centrifugal CompressorwithMagnetic Bearings Nantes, France May 2000

  2. Terminology • Turbomaster • YORK Multistage Centrifugal Compressor • Series “M” & “ML” • Series “M” • Compressor with Fluid Film Bearings • Series “ML” • Compressor with Magnetic Bearing Package

  3. “M” Strengths • Cost Competitive • Experience • Design Flexibility • Single Mechanical Shaft-seal

  4. “M” Weaknesses • Product Range • API Exceptions • Internal Lube-oil System • Threaded Driveshaft • Non-API Coupling • Single-stage Shaft-seal

  5. In the Beginning... • Market Growth • Biggest Opportunity - API Industry

  6. Major API Exceptions • Internal Lube Oil System • Threaded Driveshaft • Non-Conventional Coupling

  7. “ML” - Design Objectives • Compliance with API in key areas • Eliminate major exceptions • Build on Experience • Cost Competitive (API) • Oil-Free Gas Compression • Environmentally Friendly • Zero Fugitive Emissions

  8. Technical Design Challenges • Retain Product Offer Range • Standardization • API Compliance • Bearings (External or Oil-Free) • Driveshaft / Coupling • Shaft Seal

  9. Design Approach • “M” Derivative • Introduce Magnetic Bearings • Partner with World Leader (S2M) • Standardized by Model (26, 38, 55)

  10. Merge Two Mature Technologies YORK “M” Compressor S2M Actidyne Magnetic Bearings

  11. S2M’s Experience • World Leader in Magnetic Bearing Technology • Turbo-molecular Pumps 50,000+ • High-speed Spindles 200+ • Motors • Machine Tools • Heavy Industrial Duty 218+

  12. S2M’s Heavy Industrial Experience • Industrial Compressors 74 • Turbo Expanders 89 • Turbines 10 • Pumps 2 • Electric Motors 3 • Fans, Blowers, etc. 40 • TOTAL 218+

  13. NOVA Gas Shell Oil Exxon Reliance Man GHH British Gas BOC DOW Chemical Japan Energy STATOIL Hitachi Ingersol Rand BBC (ABB) Germany Marathon S2M’s Customer Base (partial)

  14. Design Approach • API • Coupling/Driveshaft • Shaft Seal

  15. “ML” Centrifugal Compressor API Compliant Oil Free Gas Compression Magnetic Bearings Dry-Gas Seal

  16. ML Features • Oil-Free Gas Compression • Programmable Bearing Forces • Stiffness & Damping • Real-Time Rotor Position Monitoring • Automatic Balancing System (ABS) • Zero Fugitive Emissions • Reduced Cost of Ownership

  17. API Coupling & Dry Gas Seal

  18. Control Logic

  19. 3 4 1 2 5 5-Axis Bearing System radial radial radial axial radial

  20. Rotor Radial (Journal) Bearing Position Sensors Electro-magnets 0.5 mm Auxilliary Bearings Rotor F 0.2 mm Laminations

  21. Axial (Thrust) Bearing Position Sensors Electro-magnets Rotor

  22. Radial Bearing Cartridge

  23. Thrust Magnets Thrust Disk Journal Anti-Friction "Safety" Bearing Position Sensors Rotor Laminations Cartridge Design

  24. Magnets & Sensors

  25. Non-Drive-End Bearing

  26. Non-Drive-End Bearing Cartridge

  27. Principals

  28. Journal Bearing Orientation

  29. Clearances

  30. Sectional

  31. ML Rotor with bearing sleeve & thrust disk

  32. ML238D Dry Gas Seal API Coupling

  33. Cartridge-Rotor Interface

  34. Parasitic Losses

  35. Shaft Seals • John Crane • Options • Tandem Dry-Gas Seal (Flare) • Double Wet-Barrier Seal (Non-Flare)

  36. Tandem Dry-Gas Seal

  37. Seal-Face Lift-Off

  38. Dry Gas Seal (John Crane)

  39. Dry-Gas Seal Test Experience • Less than 0.18 ACFM Primary Seal Leakage

  40. Auxiliary Flows

  41. Production • Model ML638D • Customer: PROQUIP • End User: TOSCO Bayway Refinery • Location: Linden, NJ, USA • Service: Propylene • Power: ~ 4800 hp (3600 kW)

  42. TOSCO Bayway RefineryLinden, NJ, USA ML638D

  43. “ML” On Test - York, PA February 1999

  44. Auto Balance System • Notch-Filter at Synchroneous Speed • Allows Rotor to Operate About Its Inertial Axis • Rather than Geometric Axis • Reduced Seizmic Vibrations

  45. Auto-Balance System

  46. ABS Test Results

  47. Drop Tests • Auxiliary Bearing Operation • Full Speed 5-Axis De-levitations • Approximately 8 De-levitations to date (5/2000) • Return to Test

  48. Radial Displacement Axis #1 Axis #2 Axial Speed Displacement Drop Test

  49. Selling Points • API 617 Compliance, per Appendix J • All major exceptions eliminated • Smaller Footprint • No Compressor Lube-Oil System • Pumps, Filters, Coolers, Piping • No Oil Usage • Substantially reduced Maintenance • 75% reduction in Parasitic Losses

  50. Selling Points • Oil-Free Gas Compression • Zero Fugitive Emissions • Single Dry-gas Seal • Half the Flare Leakage of the Competition • Competitors use 2 Seals

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