Post on 23-Oct-2014
Sulzer PumpsSJD (CEP) Vertical Condensate Extraction Pumps
The Heart of Your Process
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 2
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Introduction
The SJD (CEP) pumps are vertically suspended,double casing (canned), bowl diffuser pumps.
These pumps are specially designed for condensateextraction service in power plants to meetthe low NPSHa criteria (API requirements are notapplicable).
There are two distinct designs for the CEP pumps.
← Pumps designed for 50Hz combined cycle plants
and
Pumps designed for 60Hz coal fired plants →
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 3
Sulzer Pumps
Single Suction First Stage Design
These CEP pumps are intended for application in 50Hz combined cycle power plants.
The pump is designed with a single suction, high NSS, first stage impeller. Thus resulting in a flat NPSHr characteristic curve which helps to minimize the barrel and pump length.
Available Designs:
Single Suction & Double Suction First Stage
SJD (CEP) Vertical Condensate Extraction Pumps
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 4
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Available Designs:
Single Suction & Double Suction First Stage
Double Suction First Stage Design
These CEP pumps are intended for application 60Hz coal fired power plants.
Designed with a double suction, low NSS, first stage impeller. Thus resulting in a steeper NPSHr characteristic curve to comply with NSS limitation (< 11,000). This requirement is normally present in NAM specifications. This results in acceptable overall barrel and pump length.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 5
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Pump Designation & Sizes - 50 Hz
Example of Pump Designation
SJD 18DHC-BKC 290-4s
SJD → vertical condensate pump
18DHC → series stage, nominal diameter of bowl [in]
BKC 290 → suction stage (single entry), nominal diameter of impeller [mm]
4s → number of stages, (1) suction stage & (3) series stages
Standard Configurations
SJD 18DHC-BKC 290-4s SJD 20DHC-BKC 350-5sSJD 18DHC-BKC 290-5s SJD 20DHC-BKC 360-6s
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 6
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Operating Data - 50 Hz Pumps
Capacity................................ Q = 300 – 800 m3/hr
Head ..................................... up to H = 280m
Suction Pressure .................. ≤ 4 bar (58 psi)
Max Operating Pressure....... up to 42.7 bar (619 psi)
Temperature ......................... 0°C to 100°C (32°F to 212°F)
Speed ................................... 1480 RPM
Direction of Rotation ............. Counterclockwise as seen from drive end
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 7
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Performance Range - 50 Hz, 1480 rpm
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 8
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Materials of Construction – 50Hz Pumps
S-6 ModS-5 Mod (Opt 1& 2)S-1 Mod (Opt 1 & 2)Component
Carbon SteelCarbon SteelCarbon SteelSuction Barrel
416 St. Steel416 St. Steel416 St. SteelShafts
12% ChromeCast Iron, 12% ChromeCast Iron, 12% ChromeImpeller Ring (Series Impeller)
12% ChromeCast Iron, 12% ChromeCast Iron, 12% ChromeSeries Impellers
12% Chrome12% Chrome12% ChromeImpeller Ring (Suction Impeller)
12% Chrome12% Chrome12% ChromeSuction Impeller
12% ChromeCast IronCast IronStationary Ring
12% ChromeCarbon SteelCast IronBowls
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 9
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 50Hz Pumps
Cast suction and discharge head available with150# suction and 300# discharge flange as standardexecution. Fabricated option also available.
Separate fabricated driver stand. Allows the useof one suction and discharge head per pump sizeindependently of motor frame or coupling spacer.
Removable seal housing. Allows servicing thethrottle bush without removing the head.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 10
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 50Hz Pumps
Thrust bearing located in the pump. It is sized totake the axial thrust produced by the pumpduring normal operation and start-up.
Flexible coupling with spacer between driver andpump shaft. Allows servicing thrust bearing andmechanical seals as needed.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 11
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 50Hz Pumps (Cont.)
Flanged fabricated column pipes. Bolted joint flangeo-ring sealed. Provides adequate sealing withoutover stressing bolts.
Drop in bearing spider housing. Designed with anoffset to allow re-use the same shaft by flipping thebearing spider.
Product lubricated Carbon Graphite bearing bushes.Provides longer maintenance free periods.
Threaded intermediate coupling for the smaller pumpsizes with shaft diameter up 68 mm.
Sleeve intermediate coupling (thrust stud) for largershaft diameters.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 12
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 50Hz Pumps (Cont.)
First stage single suction impeller with splitter vanes.The high suction specific speed impeller provides lowand flat NPSHr curve and high first stage head.
Overhung impeller on first stage. Suction bell with noribs or tail bearing.
Fabricated barrel with bottom and lateral anti-rotationribs. Provides uniform and adequate velocity approachdownstream along the barrel length.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 13
Sulzer Pumps
Dual wear ring surfaces. Provides replaceablewear rings for impeller and bowl.
Product lubricated Carbon Graphite bearingbushes on all bowls. Provides longermaintenance free periods.
Bolted joint flange and o-ring sealed pumpbowls.
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 50Hz Pumps (Cont.)
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 14
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Detail of Thrust Bearing in Pump – 50Hz Pumps
Note 1: Values given are calculated for full diameter impellers. If impellers are trimmed, the L10 rating life will be increased.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 15
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction PumpsShaft Sealing – 50Hz Pumps
Shaft sealing by dual mechanical seal in back-to-back configuration.
Dual seals are used to avoid air inlet through the seal due to low suction pressure.
Burgmann or John Crane cartridge seals are available (seal housing compliant with API 682).
See below for piping diagram.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 16
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction PumpsAvailable Options – 50Hz Pumps
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 17
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction PumpsStandardized Pump Lengths – 50Hz Pumps
A B C D E F G H I J KDischarge
(1)Suction
(2) (5) (4) (4) (4)
18DHC-BKC290-4s 8" 12" 609.6 1920 40 381 1680 457 457 1626 840 795 460
18DHC-BKC290-5s 8" 12" 609.6 3060 40 381 1680 457 457 2765 840 795 460
20DHC-BKC350-5s (a) (7) 10" 14" 680 3655 45 390 1768 550 550 3303 910 834 580
20DHC-BKC350-5s (b) (7) 10" 14" 680 4255 45 390 1768 550 550 3903 910 834 580
20DLC-BKC350-6s 10" 14" 680 3255 45 390 1768 550 550 2911 910 834 580
Flange SizePump Size
NOTES:(1) Discharge flange ratings are ANSI B16.5 Class 300 R.F.(2) Suction flange ratings are ANSI B16.5 Class 150 R.F.(3) For driver dimensions contact your local representative.(4) Nozzle location tolerance ± 3 mm. (5) Suction can tolerance ± 6 mm.(6) All dimensions are in mm unless otherwise noted and are for guidance only. A certified drawing will be provided in all cases of actual construction.(7) (a) and (b) correspond to different standardized Pump lengths.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 18
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Pump Designation & Sizes - 60 Hz
Example of Pump Designation
SJD 24DHC-22AA VCRD-3s
SJD → vertical condensate pump
24DHC → series stage, n diameter of bowl [in]
22AA VCRD → suction stage (double entry)
3s → number of stages, (1) suction stage & (2) series stages
Standard Configurations
SJD 20DHC-22A VCRDA-4s SJD 24DHC-22AA VCRD-3sSJD 20DHC-22A VCRDB-4s SJD 24DHL-22AA VCRD-3s
SJD 24DHL-22AA VCRD-4s
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 19
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Operating Data - 60 Hz
Capacity................................ Q = 3,000 to 7,000 GPM
Head ..................................... up to H = 1275 ft
Suction Pressure .................. ≤ 58 psi (4 bar)
Max Operating Pressure....... up to 680 psi (46.9) bar
Temperature ......................... 32°F to 212°F (0°C to 100°C)
Speed ................................... 1780 RPM
Direction of Rotation ............. Counterclockwise as seen from drive end
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 20
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Performance Range - 60 Hz, 1780 rpm
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 21
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Materials of Construction – 60Hz Pumps
S-6 ModS-5 ModS-1 Mod (Opt 1 & 2)Component
Carbon SteelCarbon SteelCarbon SteelSuction Barrel
416 St. Steel416 St. Steel416 St. SteelShafts
12% Chrome12% Chrome12% ChromeImpeller Ring
12% Chrome12% Chrome12% ChromeSeries Impellers
12% Chrome12% Chrome12% ChromeSuction Impeller
12% Chrome12% Chrome12% ChromeStationary Ring
12% ChromeCarbon SteelCast Iron, Ductile IronBowls / Volute Case
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 22
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 60Hz Pumps
Cast suction and discharge head available with150# suction and 300# / 400# discharge flangeas standard execution. Fabricated option alsoavailable.
Separate fabricated driver stand. Allows the useof one suction and discharge head per pump sizeindependently of motor frame or coupling spacer.
Thrust bearing located in the electric motor. Itshall be sized by motor manufacturer to take theaxial thrust produced by the pump during normaloperation and start-up.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 23
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 60Hz Pumps
Rigid (flanged adjustable) coupling with spacerbetween driver and pump shaft. Allows servicingmechanical seals as needed.
Removable seal housing. Allows servicing thethrottle bush without removing the head.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 24
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 60Hz Pumps (Cont.)
Flanged fabricated column pipes. Bolted jointflange o-ring sealed. Provides adequatesealing without over stressing bolts.
Drop in bearing spider housing. Designedwith an offset for allowing re-use the sameshaft by flipping the bearing spider.
Product lubricated Carbon Graphite bearingbushes. Provides longer maintenance freeperiods.
Sleeve intermediate coupling (thrust stud) forall shaft diameters.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 25
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 60Hz Pumps (Cont.)
First stage double suction impeller provides low suctionspecific speed (< 11,000) with adequate NPSHr curve.
Between bearings double suction impeller on firststage provides high head for first stage.
Dual wear ring surfaces. Provides replaceable wearrings for all impellers, bowls and volute case.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 26
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Design Features & Benefits – 60Hz Pumps (Cont.)
Product lubricated Carbon Graphite bearing busheson all bowls and also on volute casing / tail bearing.
Fabricated barrel (without anti-rotation ribs). Providesuniform and adequate velocity approach downstreamalong the barrel length. Swirl is avoided by the volutecase outer contour and the ribs in the suction bell.
Bolted joint flange and O-ring sealed pump bowls.Provides adequate sealing w/o over stressing bolts.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 27
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction Pumps
Shaft Sealing – 60Hz Pumps
Shaft sealing by Single Mechanical Seal.
Burgmann or John Crane Cartridge Seals areavailable (seal housing compliant with API 682).
Seal piping according to API plan 13 and Plan 32. See below for piping diagram.
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 28
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction PumpsAvailable Options – 60Hz Pumps
SJD (CEP) Presentation <Copyright © Sulzer Pumps> | slide 29
Sulzer Pumps
SJD (CEP) Vertical Condensate Extraction PumpsStandardized Pump Lengths – 60Hz Pumps
A B C D E F G H I J K
Discharge Suction (3) (6) (5) (5) (5)
20DHC-22AVCRDA-4s 12 (1) 18 30 346.7 1.77 17.32 67.76 21.65 21.65 329.8 38.74 35.98 26.77
20DHC-22AVCRDB-4s 12 (1) 18 30 246.3 1.77 17.32 67.76 21.65 21.65 229.4 38.74 35.98 26.77
24DHC-22AAVCRD-3s 12 (2) 20 34 309.1 1.97 18.50 71.46 23.62 23.62 287.3 42.52 40.16 28.35
24DLC-22AAVCRD-3s 12 (2) 20 34 350.4 1.97 18.50 71.46 23.62 23.62 328.7 42.52 40.16 28.35
24DLC-22AAVCRD-4s 12 (2) 20 34 297.2 1.97 18.50 71.46 23.62 23.62 275.7 42.52 40.16 28.35
Flange Size
NOTES:(1) Discharge flange ratings are ANSI B16.5 Class 300# R.F. (2) Discharge flange ratings are ANSI B16.5 Class 400# R.F.(3) Suction flange ratings are ANSI B16.5 Class 150# R.F.(4) For driver dimensions contact your local representative.(5) Nozzle location tolerance ± 0.125". (6) Suction can tolerance ± 0.250".(7) All dimensions are in inches and are for guidance only. A certified drawing will be provided in all cases of actual construction.
Pump Size