Vacuum Pumps and Systems for Power JJIndustry
Transcript of Vacuum Pumps and Systems for Power JJIndustry
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Vacuum Pumps & Systemsfor the Power Industry
Reliability
Efficiency
ServiceSIHI Pumps
www.sihi-pumps.com
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SIHI ~ Global, Dependable Condenser Evacuat
Global Leadership in
iquid Ring Technology
Over 4,500,000 pumps and systems installed
worldwide!
Manuacturing liquid ring pumps since 1920
Serving demanding industries, including
Power, Renery, Petrochemical, Polymer
Processing, Oil & Gas, Mi ning and Wastewater
Global Manuacturing, Engineering, Service
and Support
Applications, Design and Systems Expertise
Full Conformance to HEI Standar SIHI condenser evacuation systems are designed to mee
exceed all applicable HEI perormance specications
Designed or 1"HgA or main condenser design pressure,
ever is lower, and 7.5F sub-cooling
As main condenser pressure rises due to excess air leaka
pump SCFM also increases, keeping the condenser oper
closer to design, with a b enecial impact on net heat rat
Designed or ully automatic Hogging, Holding and Stan
operation, and continuous duty 24/7
Each system is individually tested to HEI specications
All systems include a ull 2-year warranty
80 Years of Quality and Innovation
Sihi is a world leading designer and manuacturer o liquid ring
pumps and systems, with over 80 years o experience. Our steady
growth has been the rew ard or delivering proven technology, inno-
vation and reliability to satisied customers around the world. Sihis
reputation as a premier supplier o well-designed products and an
outstanding level o service has been built on our mission to provide
the very best in engineered solutions and lasting value. We are a
preerred supplier to the reinery, petrochemical, p olymer, pharma-
ceutical, oil & gas and power industries and we continue to grow due
to our commitment and dedication. Q uality, dependability, value and
service are our most important products and our customers are our
most important assets.
SIHI 2-Stage Liquid Ring Pumps
The heart o our condenser evacuation package is our rugged, low-
maintenance, two-stage liquid ring vacuum pump. It is the ideal
solution or handling liquid carryover, condensate and large volumes
o water vapor. It perorms seamlessly and automatically through
condenser hogging and holding. he positive displacement char-
acteristics o SIHI liquid ring vacuum pumps result in signiicantly
increased perormance even as air in-leakage increases, so your con-
denser will continue to operate closer to the design point. Our liquid
ring pump tracks condenser perormance as cooling water tempera-
ture varies, since it uses main condenser circulating water or cool-
ing. You can begin condenser hogging without waiting or ull steam
pressure, which is ideal or plants that need to come online quickly.
wo-stage liquid ring pumps are naturally suited or main condenser
evacuation service and provide long lie and optimum perormance
or your steam turbine condenser system.
Power Market Experience
As a global leader in the electric utili ty industry, SIHI has hun-
dreds o installations in conventional, geothermal and nuclear
eam power plants worldwideso we understand your needs. Maineam condenser air removal is critical to eicient plant operation,
nd an application in which we excel,but we also cover the entire
amut o power plant applications, including water-box and pump
riming, condenser hogging, deaeration, ue gas desulurization
nd y-ash conveying. We also have a signicant installation list o
umps and systems in nuclear plants around the world. All systems
upplied to North American customers are designed and built in the
SA to meet your most exacting design specications.
The Keyto Performance!
IHI 2-Stage liquid ring vacuum pumps are the standard
ability and eciency in power applications or goo d reas
ability to condense water vapor and tolerate liquid carryoverthem ideal or condenser air removal service. But, only the c
thrive and survive. Because water temperature is so importa
liquid ring reliability and perormance, SIHI pumps are desig
ully utilize available cooling w ater supply. A ew degrees dif
in seal water temperature can result in huge perormance pe
especially at normal condenser operating pressures, and can
the diference between a pump that cavitates and ails, and o
runs maintenance-ree over an extended period. Tis is asig
advantage, particularly on condenser air removal service, an
that cannot be overemphasized.
r design engineers utilize the latest in 3D system modeling
d state-o-the-art process simulation sotware to optimize
r system designs or reliability and eciency
For over eighty
years, SIHI
rotors have been
constructed rom
high strength
steel and iron
materials, enabling
us to maximize
both volumetric
eciency and
dependability
Engineered Systems in fnal stages o assembly in our Grand Island, NY plant
Tree large, piped & wired liquid ring condenser evacuation
packages ready or delivery to an electric power acility
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System Design Featu
Liquid Ring Vacuum Pump2-stage design or high vacuum operationMeets HEI requirements without cavitationHigh seal ow rates or maximum condensingOne unit or both hogging and holding
Automated Inlet Shut-off ValveActuated ail-close valve isolates system rom condenserBubble-tight valve or positive shutofVacuum Switch enables automated controlDiferential pressure switch or standby operation
Inlet Spray NozzleCondenses water vapor prior to vacuum pump inletIncreases ability to handle non-condensible load
Coupling DriveDirect drive motors or simple system designsGear drive units or 125 HP and largerLow maintenance exible couplings
2-Phase Discharge SeparatorBuilt to ASME and ASM SpecicationsGauge glass with integral isolation valves
Check valve with manual override handleRotometer veries amount o non-condensable loadLevel switches and make up water line
Plate & Frame Heat ExchangerLow-approach, high eciency heat transerCorrosion resistant, low maintenance designExpandable design provides system exibilityOptional shell & tube models available
Seal Liquid Recirculation PumpIncludes high eciency motorMaximizes heat transer in heat exchangerEciently atomizes in suction inlet spray
NEMA 4 Control PanelIncludes wiring to all components on skidLogic control or automated operationerminal strips or remote connections & alarmsOptional Starters, transormers and disconnects
Rugged Power Plant Duty MotorEFC, High Eciency, 1.15 Service Factor is standardSelections available to meet your plant specications
Welded Steel Base PlateRugged, sel-supporting constructionSuitable or concrete oundation mountingGrout-ready design
ANSI B31.1 Power PipingAll piping conorms to ANSI B31.1 Power Piping codeNo copper alloy components
SIHI 2-Stage Liquid Ring Vacuum PumpHeavy duty, 2stage liquid ring vacuum pumps are the key component of ourCondenser Evacuation Systems. Tese slow running, low noise pumps haveno metal-to-metal contact, need no internal lubrication and are low main-tenance. Tey operate automatically for both hogging to holding. Pumps are
iron or stainless steel construction with no copper alloys, and come standardwith packing or optional mechanical seals.
SIHI Dedicated Hogging PackagesSIHI hogging systems utilize our rugged single stage vacuum pumps andmeet all HEI standards for main condenser shell side evacuation. Teyre
the ideal solution for peaking plants or whenever you need to get online fast.Like our Condenser Evacuation Systems, they come piped, wired and readyto go, and since they dont need steam, you can begin hogging before y ourboilers are up to full steam pressure.
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80
30 27 24 21 18 15 12 9 6 3 0
40
35
30
25
20
15
10
5
0
Timerequired to evacuatea 10,000cubic foot vessel with thegiven air leakagerate,basedon dry air pumpperformancewith 60F seal water to the vacuum pump. For largerevacuation volumerequirements,multiply evacuation timeby the ratio of thevolumes.
40 50 60 70 80 90 100 110 120
5
4
3
2
1
0
SCFM
3530252015
0 10 20 30 40 50 60 70 80 90 100 110
95
90
85
80
75
70
65
60
55
50
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
System
Model
Pump
Speed
Motor
HP
Drive
Type
SCFM
Range1Hogging
Time2
CES7044 880 30 Direct 3 - 7.5 31.6
CES7066 880 40 Direct 3 - 10 20.5
CES7079 880 50 Direct 5 - 15 16.9
CES8103 580 60 Direct 10 - 20 13.1
CES8128 580 75 Direct 15 - 25 11.2
CES8150 700 100 Direct 15 - 30 8.4
CES9176 480 125 Gear 20 - 35 7.2
CES9206 480 125 Gear 25 - 45 6.3
Typical Performance Data for given leakage rate
SCFMRequired Cooling Water Temp. (F)
1HgA 1.5HgA 2HgA 2.5HgA
4 63 79 91 100
5 63 79 90 99
7.5 61 77 89 98
10 61 78 90 99
15 61 78 90 99
17.5 58 76 88 98
20 59 77 89 99
25 59 77 89 98
Power Applications Served
IHI has vacuum and compressor products or most appl
ound in conventional, geothermal and nuclear power pl
Main Condenser Air Removal Packages
Main Condenser Hogging Packages
Water Box Priming Systems
Boiler Feedwater Deaeration Systems
Exhaust Gas Compressors or Nuclear Plants
Degassier Vacuum Pumps or Nuclear Reactors
Fly-Ash Conveying Systems
Flue Gas Desulurization and Vacuum Filtration
Stainless Steel Pumps or Geothermal Plants
Service If You Need It
Customers choose SIHI Liquid Ring Vacuum
pumps or their eciency, exceptional
perormance characteristics, reliability and low
maintenance. Tey operate at low speeds and cool
temperatures, and require no internal lubrication
since they utilize a water seal. Tey have liberal
clearances and have no metal-to-metal contact.
Tis insures long lie and trouble-ree service.
When you do need assistance, we have the ser vice
acilities, staf and experience you need.
In addition to three actory-owned service centers
in North America, we have over 100 authorized
service centers strategically located around the
world. We staf a 24/7 Emergency Hot-Line or the
rare occasion when you need help NOW!
So, whatever your challenge, we have you covered.
Call the Experts
Experience the SIHI diference. Contact us to day or literature,
engineering data, technical presentations, an in-depth plant sur-
vey or just to learn more about us. Youll be glad you did.
Engineering Data Applications / Serv
Packaged systems ready or shipment to a power plant
SIHI Pumpsproviding custom eng
solutions & systems or over 80 years
716.773.6450 www.sihi-pumps.com
SIHI ~ The Smart, Economical ChoiceQuality Reliability Expertise Support Value
SIHI Standard Models Typical Performance Data
HEI Condenser Performance CurveSIHI Condenser Evacuation System - CES8150
Saturated Air Capability with 7.5F Sub-Cooling
PumpSuctionPressure(HgA)
CondenserAbsolutePressure(HgA)
InletCirculatingWaterTemperature(F)
EvacuationTime(minutes)
Cooling Water Temperature to Heat Exchanger (F)
Condenser Design Heat Duty (percent)
Absolute Pressure (HgA)
Evacuation Time - SIHI CES-8150
Condenser Performance Curves predict condenser vacuum under given steam
loads, circulating water temperatures, cleanliness factor etc. We can compare
our vacuum pump curves to your condenser curve for the best possible
selection.
per HEI standards at 1HgA 2) time in minutes to evacuate 10,000 ft3 volume with no leakage
Selecting an Optimal System
electing the best vacuum system or your condenser involves a thorough
understanding o anticipated plant loading, seasonal actors, condenser
perormance and design point, the efect o condenser pressure on turbine
eciency and other actors. Our engineers can assist you in estimating your
needs until you are ready or in-depth analysis.
SIHI uses sophisticated sizing and selection programs to model perormance
using your precise operating conditions. Our systems can be specied
o meet your perormance and equipment requirements. Please contact
us or a complete system evaluation and certied engineering data.
We Provide All the Data You Need - (CES8150 sample data shown below)
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www.sihi-pumps.com
SIHI Pumps, Inc.
303 Industrial Drive
Grand Island, NY 14072
: 716.773.6450
F: 716.773.2330
SIHI Pumps Limited
225 Speedvale Avenue
W. Guelph, ON. Canada N1H6L8
: 519.824.4600
F: 519.824.7250
SIHI Pumps, Inc.
5757 Genoa-Red Bluf Road
Pasadena,X 77507-1044
: 281.991.3100
F: 281.991.3101
Vacuum Pumps & Systemsfor the Power Industry