sundyne high speed pump ( oh6)
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Sundyne umps
Kerry Kramlich
Compressor Engineering Manager
July 2014
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Sundyne Pumps
Sundyne - CONFIDENTIAL
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How It All Started...
• In the late 1950’s Boeing approached Sundstrand Aerospacewith a unique pump application
• Water Injection Pump for Boeing 707 to increase thrust during take off
• Required to run dry during flight
• 100 GPM/23 M3/hr, 1100 Ft/330 M
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The First Sundstrand
High - Speed Pump
• German engineer U.M. Barske had an “unconventional”
pump
• Suited for low specific speed
• Straight radial blades
• Concentric bowl around the impeller
• Single point emission: termed “Diffuser Pump”
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Boeing 707 Water Injection Pump
made by Sundstrand Aerospace
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• First Sundyne pump sold in 1963
• First Sundyne compressor sold in 1965
LMV-2
From Aerospace
to Industrial
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Where do we fall in?
Pumps
Positive Displacement Centrifugal
Reciprocating
Screw
Sliding Vane
Rotary Lobe
Axial
Mixed Flow
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Sundyne Gearboxes
Gearbox Code: 1 Gearbox Code: 2 Gearbox Code: 3 Gearbox Code: 4
Nominal Power:
200 hp
Nominal Power:
50 hp
Nominal Power:
250 / 400 hp
Nominal Power:
400 hp
Notes: Notes: Notes: Notes:a.k.a. the Phoenix
Gearbox
LMV-3XXSundyne - CONFIDENTIAL
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Sundyne Pump Cases
Case Code: 1 Case Code: 2 Case Code: 3 Case Code: 6 Case Code: 8
Size: 3”x 2” Size: 3”x 2” Size: 6”x 4” Size: 3”x 2” Size: 4”x 3”
Flange Rating:
600,900#
Flange Rating:
600#
Typ. Flange
Rating:
600#
Flange Rating:
300,600,900,
1500#
Typ. Flange
Rating:
600#
Notes: SeparableDiffuser Notes:Typically used in
the LMV-322
Notes:Used for High –
Flow Pumps
Notes:High Pressure Notes:Used with BMP
LMV-XXXSundyne - CONFIDENTIAL
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Modular Design - Gearboxes
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Modular Design - Hydraulics
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Sundyne Features & Benefits
Feature Benefit
Large Impeller
Clearances
Robust – tolerant
to process upsets
Ease of
maintenance (noshims required)
Able to pump
soft slurries
Can be protected
by suction screen
Modular Design Custom
hydraulics sizing
for every pump
sold
Ability to re-rate
hydraulics
0.035”
0.035”
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Head vs. Pressure
• Head (H) is the amount of energy in the fluid measured in
units of height
• Pressure (P) is force / unit area
• H = P x 2.31/S.G.
• Pump and compressor performance are defined in units ofHEAD, not PRESSURE
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Sundyne Pump Hydraulic
Envelopes
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Pump Specific Speed
Dimensionless used to select the impeller geometry for
maximum efficiency
• Ns Between 200 and 1000 = BARSKE
• Ns Between 1000 and 5000 = Conventional Impeller
• Ns Between 5000 and 15000 = Axial Flow Pump (Inducer)
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Example:> Head: 1000 ft
> Flow: 100 GPM
Conventional vs. Barske
Conventional Hydraulics
• 3,600 rpm
•Impeller Diameter: 17.5”
• Height of impeller exit 0.117”
Barske Hydraulics
•14,000 rpm
• Impeller Diameter: 3.5”
• Height of impeller exit 0.49”
At 17.5”, the Francis Wheel is 5 times
the diameter of the Barske Wheel –
think of the material costs! Sundyne - CONFIDENTIAL
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Source: Karassik, Igor J.; Messina, Joseph P.; Cooper, Paul; Heald,Charles C. (2001). Pump Handbook (3rd Edition).. McGraw-Hill.
For Example
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Source:Stepanoff, Alexey J. (1957). Centrifugal and Axial FlowPumps (2nd Edition). John Wiley & Sons, Inc.
Specific Speed vs. Efficiency
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Benefit of Low Ns Design
Process conditions: 100 gpm @ 600 ft. head _ 22.71 m3/hr @ 182.9 meters
NS PumpSpeed
Efficiency BHP / kW
Typical Francis impeller performance 393 3560 36% 42 / 31
Typical Barske, open radial blade impeller 599 7200 *52% *29 / 21.6
* Result of optimized NS; increased hydraulic efficiency, lower BHP / kW
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Pressure-Velocity Machine
• A centrifugal pump is a PRESSURE-VELOCITY MACHINE
• A pump changes a system pressure by changing the velocity
of the fluid
heigth Z
density
velocityv
pressuretotal P
gZ p P
o
o
_
2
1 2
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Velocity Pressure
Pressure-Velocity Machine
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Shock Losses
Reducing Flow
Design Flow Separation Recirculation
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Nomenclature Of Sundyne Pumps
Impeller
Inducer
Diffuser
Diffuser
Cover
Mechanical
Seal(s)
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Z- Series 24 Blade Impeller
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Concentric Bowl Series
Bottom View
Single Point
Emission Diffuser
8-Blade
Impeller
Concentric
Annulus
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Engineering BEP
Speed
Impeller Diameter
Inlet
Diameter
Inducer
Series
Blade Height andThroat Diameter
1
2
3
4
5
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Inducers
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General CFD Uses
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Sundyne OH pumps in API
610
LMV 3XX
LMV 8XX w/
Bearing Box
LMV 8XX
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GEN5 GEARBOX
FEATURES
1. API-610 L10 life compliant anti-friction bearings2. Idler shaft supported by spherical roller bearings
3. Helical upper gear mesh
4. Bolt-in uni-directional lube pump (hydrodynamic
bearing selection limited)
5. No aux lube pump necessary under 450-psig
suction pressure
6. New output seal
7. New desiccant breather
8. Standard splined impeller connection
WET-END REQUIREMENTS
NONE
Standard 31X/33X parts
HYDRAULICConcentric
BowlZ-Series Dual Throat
INPUT 50-HZ 60-HZ 50-HZ 60-HZ > 13K < 13K
MAX HP 182 182 200 230 245 275Sundyne - CONFIDENTIAL
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IDLER SHAFT SPHERICAL BEARINGS
Meets API-610 Life Requirements
• 25,000-HRS life at rated HP
• 16,000-HRS life at max HP
Oil galley-ways pressure feed bearing outside diameter annulus;
bearing internal roller elements receive pressurized and equal
distribution of oil Sundyne - CONFIDENTIAL
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IDLER SHAFT
Hydrodynamic bearings replaced with spherical bearings
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BOLT-IN LUBE PUMP
NEW PROTOTYPE PUMP
• Pump bolts to bearing plate
• Internal reversing (bi-directional pumping) capability
• Use limited by hydrodynamic bearing selection
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31X UPGRADE KIT
FEATURES1) New output seal
2) New desiccant breather
3) Modified bearing plate to accept lube pump rotation modification
4) Lube pump plate
5) API compliant input shaft and idler shaft bearings
OUTPUT SEAL BREATHER BREARING PLATE LUBE PUMP PLATE BEARINGS
25-007
• Available as field retrofit-able kit
• Available as option for exchange units
• Offered on new 31X units as standard equipment (in discussion TBD)
Upgrade kit designed to increase the reliability and robustness of the 31X gearbox
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PU01AB05 LUBE PUMP PLATE
• Eliminates bearing plate rotation pin
• Drive plate provides larger contact
area to minimize stress
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