Sundyne High Speed Pump ( OH6)
February 7, 2017 | Author: Angga Deri Saputra | Category: N/A
Short Description
Download Sundyne High Speed Pump ( OH6)...
Description
Sundyne Pumps
Kerry Kramlich Compressor Engineering Manager July 2014
Sundyne Pumps
Sundyne - CONFIDENTIAL
How It All Started... • In the late 1950’s Boeing approached Sundstrand Aerospace with 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
Sundyne - CONFIDENTIAL
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”
Sundyne - CONFIDENTIAL
Boeing 707 Water Injection Pump made by Sundstrand Aerospace
Sundyne - CONFIDENTIAL
From Aerospace to Industrial
• First Sundyne pump sold in 1963 • First Sundyne compressor sold in 1965
LMV-2 Sundyne - CONFIDENTIAL
Where do we fall in? Pumps Positive Displacement
Centrifugal
Reciprocating
Axial
Screw
Mixed Flow
Sliding Vane Rotary Lobe
Sundyne - CONFIDENTIAL
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-3XX Sundyne - CONFIDENTIAL
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: Separable Diffuser
Notes: Typically used in the LMV-322
Notes: Used for High – Flow Pumps
Notes: High Pressure
Notes: Used with BMP
LMV-XXX Sundyne - CONFIDENTIAL
Modular Design - Gearboxes
Sundyne - CONFIDENTIAL
Modular Design - Hydraulics
Sundyne - CONFIDENTIAL
Sundyne Features & Benefits
Feature
Benefit
Large Impeller Clearances
Robust – tolerant to process upsets
0.035”
Ease of maintenance (no shims 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 Sundyne - CONFIDENTIAL
0.035”
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 of HEAD, not PRESSURE
Sundyne - CONFIDENTIAL
Head vs. Pressure
Diesel Fuel
Water
Sulfuric Acid
1000 ft
Sundyne - CONFIDENTIAL
This is an example of ‘Head’
Head vs. Pressure Diesel Fuel
Water
SG = 0.8
350 psi
Sulfuric Acid
SG = 1.0
430 psi Sundyne - CONFIDENTIAL
SG = 1.8
780 psi
1000 ft
Low Flow - High Head
Reciprocating Pumps
Multistage Barrel Pumps Typical Single Stage Overhung Pump
Sundyne Pumps
Sundyne - CONFIDENTIAL
Sundyne Pump Hydraulic Envelopes
Sundyne - CONFIDENTIAL
Low Flow - High Head
Sundyne - CONFIDENTIAL
Source: Karassik, Igor J.; Messina, Joseph P.; Cooper, Paul; Heald, Charles C. (2001). Pump Handbook (3rd Edition).. McGraw-Hill.
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)
Sundyne - CONFIDENTIAL
Conventional vs. Barske Example: > Head: 1000 ft > Flow: 100 GPM
Barske Hydraulics •14,000 rpm • Impeller Diameter: 3.5” • Height of impeller exit 0.49”
Conventional Hydraulics • 3,600 rpm •Impeller Diameter: 17.5” • Height of impeller exit 0.117”
At 17.5”, the Francis Wheel is 5 times the diameter of the Barske Wheel – think of the material costs!
Sundyne - CONFIDENTIAL
For Example
Sundyne - CONFIDENTIAL
Source: Karassik, Igor J.; Messina, Joseph P.; Cooper, Paul; Heald, Charles C. (2001). Pump Handbook (3rd Edition).. McGraw-Hill.
Specific Speed vs. Efficiency
Sundyne - CONFIDENTIAL
Source:Stepanoff, Alexey J. (1957). Centrifugal and Axial Flow Pumps (2nd Edition). John Wiley & Sons, Inc.
Benefit of Low Ns Design Process conditions: 100 gpm @ 600 ft. head _ 22.71 m3/hr @ 182.9 meters Typical Francis impeller performance Typical Barske, open radial blade impeller
NS 393 599
Pump Speed 3560 7200
Efficiency
BHP / kW
36% *52%
42 / 31 *29 / 21.6
* Result of optimized NS; increased hydraulic efficiency, lower BHP / kW
Sundyne - CONFIDENTIAL
Pressure-Velocity Machine • A centrifugal pump is a PRESSURE-VELOCITY MACHINE • A pump changes a system pressure by changing the velocity of the fluid
1 Po p 2 gZ 2 Po total _ pressure v velocity
density Z heigth
Sundyne - CONFIDENTIAL
Pressure-Velocity Machine
Velocity
Pressure
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Centrifugal Pump Curve
Sundyne - CONFIDENTIAL
Source:Stepanoff, Alexey J. (1957). Centrifugal and Axial Flow Pumps (2nd Edition). John Wiley & Sons, Inc.
Shock Losses Design Flow
Separation
Reducing Flow Sundyne - CONFIDENTIAL
Recirculation
Nomenclature Of Sundyne Pumps
Mechanical Seal(s) Diffuser Cover
Impeller Inducer Sundyne - CONFIDENTIAL
Diffuser
Z- Series 24 Blade Impeller
Sundyne - CONFIDENTIAL
Concentric Bowl Series
Single Point Emission Diffuser
8-Blade Impeller
Concentric Annulus
Bottom View Sundyne - CONFIDENTIAL
Engineering BEP 1
Speed 2
4
Impeller Diameter
3
Inducer Series 5 Sundyne - CONFIDENTIAL
Inlet Diameter
Blade Height and Throat Diameter
Inducers
Sundyne - CONFIDENTIAL
General CFD Uses
Sundyne - CONFIDENTIAL
Sundyne OH pumps in API 610
LMV 8XX w/ Bearing Box
LMV 8XX LMV 3XX
Sundyne - CONFIDENTIAL
GEN5 GEARBOX FEATURES 1. API-610 L10 life compliant anti-friction bearings 2. 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
HYDRAULIC
Concentric Bowl
Z-Series
Dual Throat
INPUT
50-HZ
60-HZ
50-HZ
60-HZ
> 13K
< 13K
MAX HP
182
182
200
230
245
275
Sundyne - CONFIDENTIAL
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
IDLER SHAFT
Hydrodynamic bearings replaced with spherical bearings Sundyne - CONFIDENTIAL
BOLT-IN LUBE PUMP
NEW PROTOTYPE PUMP • Pump bolts to bearing plate • Internal reversing (bi-directional pumping) capability • Use limited by hydrodynamic bearing selection
Sundyne - CONFIDENTIAL
31X UPGRADE KIT Upgrade kit designed to increase the reliability and robustness of the 31X gearbox FEATURES 1) 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)
Sundyne - CONFIDENTIAL
PU01AB05 LUBE PUMP PLATE • Eliminates bearing plate rotation pin • Drive plate provides larger contact area to minimize stress
Sundyne - CONFIDENTIAL
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