Sundyne High Speed Pump ( OH6)

8/16/2019 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

Sundyne High Speed Pump ( OH6)

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