Brochure DoosanSkoda SteamTurbines & Generators

8/16/2019 Brochure DoosanSkoda SteamTurbines & Generators

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Delivering cutting-edgeturbine andgenerator technologies


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Doosan - Morethan innovation

Our expertise is built on over 110 yearsof experience in the manufacture andcontinuous development of steamturbines. The production knowledge we’veaccumulated is incorporated into ourproduct designs today, helping us deliverreliable, efficient, and innovative turbinetechnologies.

Global interest in Doosan turbines isgrowing every year, resulting in a rapidincrease of our market share. Today, we area respected and sought-after supplier ofsteam turbines from 10 MW to 1,500 MWfor customers and plants around the world.

Our generators are the most up-to-datemachines of their kind, utilizing the latesttechnology and providing incomparablequality with ratings from 100 MW to

1,500 MW.

We are driven by the desire to provide ourcustomers with optimum efficiency, highreliability, and operational flexibility—all ata reasonable price. Our technology coversall fuel types from fossil fuel and biomassto nuclear and renewables. By coveringevery possible detail, we design ourturbines to exceed your expectations.

Doosan offers a wide range oftechnologically advanced turbine designs,products, and services for the energygeneration field such as equipmentsupply of turbines, generators, and heatexchangers, turbine generator sets, turbineislands up to turbine machine halls, long-term service, and retrofitting programs.We upgrade our own turbines with cutting-

edge technology, as well as non-OEMturbines that utilize Doosan components.

We conduct our business based on acustomer-oriented approach: we not onlyprovide technological solutions, but alsosupport ECA financing for our customers.

In Plzen and Changwon, Doosan´s globalR&D Center, with head office in Plzen, wecontinue to invest considerable resourcesinto the development of our products andsystems.

Whatever thetechnologicaland commercialrequirements,Doosan can help.

Doosan is a modern and dynamic supplier of high performancesteam turbines, generators, and heat exchangers that rank amongst the

best products of their kind in today’s global marketplace.Our employees draw upon their experience to realize innovation and acustomer friendly approach to find and offer the best solutions.

We are driven by the desireto provide our customers with:

all at a reasonable price

Operationalflexibility

Highreliability

Optimumefficiency

3Delivering cutting-edge turbine and generator technologiesDoosan


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Steamturbines

As a specialized steam turbine supplier, we achieve world-classperformance, efficiency, reliability, and maintainability of Doosan steamturbines through effective design and quality manufacturing. Our steamturbine technologies are constantly evolving to meet the changing needsof our customers.

We invest in R&D to continuously enhance

the construction of each component, withthe ultimate goal of increasing turbineefficiency, lowering fuel consumption, andreducing emissions for minimum impact onthe environment.

Optimumexploitation of

cooling conditionsat the turbine

outlet

Long-termsustainedefficiency

through uniquedesign features

Shorter start-uptimes througha more flexiblethermal design

Our technologies provide:



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Industrialsteam turbines

Doosan industrial steam turbines are flexible units that meet therequirements of even the most complex processes in a range ofindustries, from metallurgy, chemical, pulp and paper, to sugar mills,local heating from cogeneration units, and many more.

The turbines are constructed assingle-casing, high-speed turbines,either condensing or back-pressure, in acompact configuration. Single casing steamturbines are usually coupled to thegenerator via gearbox.

The construction of these turbines allowsfor the application of one or more controlledsteam extraction systems, and a radialor axial outlet into the condenser. Theseturbines are supplied to the construction siteassembled, which simplifies and shortenstheir installation.

At Doosan, we don’t classify turbines asindustrial merely according to their output.Instead, we consider the industry andprocess in which the turbine is going to beemployed, so that even a medium-outputturbine with industrial steam extraction canbe regarded as industrial.

DST-V – Variable Speed Driver Steam TurbinesDST-G – Industrial Steam Turbines Connected Via GearboxDST-S – Power Generation Synchronous Steam Turbines

Model Speed (RPM)Indicative Range

Steam Parametersup to

ConfigurationIndicative Output (MW)

D ST-V Var iab le sp eed a cc . t o r eq ues t

DST-G10 > 6,500 140 bar, 540 °C

DST-G20from 4,000 ~

to 6,500140 bar, 565 °C

DS T-S 10 3 ,0 00 / 3 ,6 00 1 65 bar , 5 80 °C

10 20 30 40 50 60 70



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Turbines formedium andlarge poweroutputDoosan medium and largeoutput steam turbines forpower generation applicationare designed primarily with therequirements of utilities andheating facilities in mind.

We can tailor our wide range of mediumand large output steam turbines to fit therequirements of your project.

• One, two and multiple-core units, with

or without steam reheating

• Speeds of 3,000 rpm or 3,600 rpm

• Pure condensing, condensing-extractio n,

back-pressure, or back-pressure-extraction

• Radial, lateral or axial outlet into the

condenser

Doosan follows the principle that a turbine’sflow part is always designed according tothe specific requirements and conditionsof each individual project. To achieve themaximum possible efficiency, we combineour modular structure with operationallyverified nodes.

Outlet casings for condensing turbines differonly according to the standard modularlast stage blade. The arrangement andperformance of steam valves and bearingstands are also fully standardized.

DST-S – Power Generation Synchronous Steam TurbinesDST-N – Steam Turbines for Nuclear Power Plant

(mm)

1400

1300

1200

1100

1000

900

800

700

600

500

400

3 0 0

2 0 0

1 0 0

0

Type Speed(RPM)

IndicativeRange Steam

Parameters up toConfiguration Type Indicative Output (MW)

DST-S10

3,000 / 3,600 165 bar, 580 °C Single-Casing

3,000 / 3,600 180 bar, 580 °C Double Casing

DST-S20 3,000 / 3,600 260 bar, 600 °C HIP Combined+ LP

DST-S30 3,000 / 3,600 300 bar,610 / 621 °C HP + IP + LP

DST-N Half / Fullspeed Saturated steamNuclear Steam

Turbines

Doosan Delivering cutting-edge turbine and generator technologies 9

100 300 500 700 900 1100 1300 1500


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Beyond technology,customer friendly

Doosan’s first steam turbine developed in 1904by Škoda Works (now Doosan Škoda Power)

Delivering high efficiency Advanced aero blade design

Doosan has provided customized solutionsin both impulse and reaction technology forover a century. Drawing upon our wealth ofexperience and professional knowledge, we

are able to provide advanced blades withthree-dimensional design. This enables usto deliver the highest efficiency and years ofquality performance.

Our advanced blade is designed withoptimized reaction and stage load levelthrough the flow path of steam turbines.

Advanced sealing technology

Sealing technology is very important formodern steam turbines in terms of performance.Doosan’s advanced sealing technology canmaintain minimized operational clearancesand reduce leakage losses.

We provide the most optimized sealingtechnologies-brush seals, abradable coating,retractable seals, and honeycomb seals-torealize remarkable efficiency improvements.

Technology to meet all customer’s needs

Doosan sides with our customers, listens toyour opinions, and creates superior designs tomeet all your requirements.

Using welded rotors allows us to manufacturevery large low-pressure turbine rotors and

improve their dynamic behavior in operation.They also enable fast start-up and loading byreducing stress levels compared to monoblockrotors. Doosan developed special technologyfor heterogeneous rotor welding to combinematerials with optimum properties in eachsection of the rotor flow path; this producesthe creep resistant materials in the front hotsection and ductile high strength materials at“cold end.” High power output turbines canthen be designed in a single casing compactarrangement.

The assembled diaphragm consists ofinserted nozzle blades into the outer andinner rings, which are mechanically securedby pins to minimize deformation and improvemanufacturing accuracy and the finishsurface. This also enables us to achieve thehighest flow path efficiency.

Doosan steam turbines arebased on a modular design thatincorporates operationally provenelements, differing only in flow-part dimensions, to provide

customers with reliable solution.We optimize our designs to meetindividual customer requirementsby means of a suitable combinationof standardized modular elementsand tailor-made design.

Maximizing customer’s valueCustomized solutions

Doosan provides our customers with awide spectrum of technically progressiveand economically effective steam turbinesolutions to meet all the specific conditions ofindividual projects.

Conventionalsteam turbine

design

Steam turbineconnected

by clutch forcombined heating

power plant

Controlleddiaphragm design

for combinedheating power

plant

Side exhauststeam turbine

design

Axial exhauststeam turbine

design

Major milestone of Doosan steam turbine

1904 F irst steam turbine system Rate au Ško da Wo rk s ( Czech)1932 First 23MW reheating steam turbine Trebovice (Czech)1965 200MW steam turbine Ledvice (Czezh)1 97 6 2 20 MW nuc le ar st ea m t ur bi ne B oh un ic e ( Sl ov aki a)1977 500MW s ubcrit ical s te am turbine M elník II I ( Czech)1 99 1 1 00 0M W n uc le ar s te am t ur bi ne Te me li n ( Cz ec h)1993 500MW s upercrit ical s te am turbine Borye on g (K orea)1 99 5 1 00 0MW nu cl ea r s te am tu rb in e Yo ng gw an g ( Kor ea )2005 500MW USC steam turbine Tangjin (Korea)2007 700MW supercritical steam turbine Cirebon ( Indonesia)2007 660MW USC steam turbine Ledvice (Czezh)2 00 7 1 45 0MW nu cl ea r s te am tu rb in e S hi nko ri (Ko rea )201 3 100 0MW USC st eam turbi ne Shinbor yeong (Kor ea)



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Generator

Modern society is almost entirely dependent upon electricity forindustrial purposes, leisure, and daily living. To meet the demandfor electric power—that is growing at an accelerating rate—Doosan provides a wide range of generators for our customers.

The retaining rings of nonmagnetic18-Manganese/18-Chromium stainless steelresist cracking due to stress and corrosion.

The Direct-cooled field promotes uniformtemperature distribution throughout thewindings to prolong insulation life.

The stator winding support structure features top wedges and ripple springsto secure the stator bars in the slot,eliminating bar vibration to maximizeinsulation life and reduce maintenancerequirements.

The stator insulation system provides themechanical resilience and voltage endurancerequired for continuous or daily start & stopduty. The stator insulation design is reliable,proven by its record of superior performancefor more than two decades.

The stator end winding support system isdesigned to withstand the severe forcesinvolved in normal and abnormal operation.Stator end winding support systems requirelittle maintenance, and their in-servicereliability has been proven.

The core support system isolates stator corevibration to minimize generator vibration andnoise.

Low-loss laminated silicon steel minimizeselectrical loss within the core and improvesthe generator efficiency.

DS-DEX (Doosan Digital Excitation System)is a static, digital, potential sourceexcitation system, utilizing state-of-the-arthardware and software technology.

DS-DEX can meet a wide range of generatorratings by virtue of its open architecturewith standardized, modular componentsand can be applied to generators driven byall types of turbines.

Presently, Doosan is applyingadvanced state-of-the arttechnology that integrates allnecessary factors of design,manufacturing, and qualitycontrol, to supply customersnot only with a machine, butalso total satisfaction.

Model Cooling Speed (RPM) Capacity (MVA) Voltage

DGen-A Air 3,000 110 ~ 200 10.5 ~ 15.75 kV

3,600 110 ~ 200 12.5 ~ 18 kV

DGen-H Hydrogen3,000 200 ~ 500 15 ~ 19 kV

3,600 200 ~ 510 18 ~ 21 kV

DGen-W

HydrogenWater

3,000 400 ~ 1,390 21 ~ 30 kV

3,600 450 ~ 1,240 19 ~ 30 kV

DGen-N1,500 650 ~ 1,700 18 ~ 27 kV

1,800 770 ~ 1,700 22 ~ 24 kV



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Water cooledcondensers

District waterheaters

High & Lowpressure heaters

MSR (Moistureseparator &

reheater)

Steam jetejectors

Vent steamcondensers

Main products:

Condensers andheat exchangers

Through decades of experience with thethermal cycle design as STG OEM, thedesign of condensers and heat exchangersmeets all customer requirements withregard to size, price, layout and overallthermal cycle optimization.

Our condensers and heat exchangerscomply with commonly used standardsincluding Heat Exchange Institute (HEI)Standards and other design standards forpressure equipment, including PED, ENCode, ASME Code, and AD-Merkblatt.

RetrofitsDoosan offers modernization of obsoletecondensers by either using modules withnew tube bundles incorporated into theexisting shell or by replacing the entirecondenser.

Replacement of outdated LP/HP heaterswith new modern design can be completedwithout any significant changes in a steamturbine machine hall.

CondensersThe design and manufacturing ofcondensers is offered for any size andtype of steam turbine. Based on years of

research and application experience, theoptimum condenser type with appropriatesupports and connection to a steam turbineis selected. Materials including condensertubes are selected based on quality ofcooling water and condensate. Throughexperience with hundreds of successfulprojects, we can also deliver condenserswith all the necessary auxiliary equipment.

Heat exchangersDistrict water heater

Our district water heater design is basedon extensive customer feedback and

takes into account modern trends andfeatures. Doosan district water heaterswith U-tubes or straight tubes are designedto meet stringent district heatingrequirements and achieve the highestpossible efficiency of entire cycle.

Regenerative LP & HP heaters

The design of regenerative heat exchangersof Doosan design use latest findings fromour own research and includes all modernfeatures such as integrated desuperheatersand subcoolers. Materials and design areoptimized for thermal loading to meetcustomers’ price and layout expectations.

Steam jet ejectors

Based our own unique design of steam jetejectors, we offer highly efficient and robustalternative to water ring vacuum pumps.The vent steam condenser is integratedin the steam jet ejectors condenser itself.This solution saves space and reduces totalinvestment cost.

To achieve the best efficiencyfor steam cycles, the highestefficiency condensers and

heat exchangers are required.Doosan designs and producesstate of the art condensers andheat exchangers for all typesof steam turbines.



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In-house manufacturing capacity

Steam turbine

Generator

Manufacturing

excellenceDoosan strategically picked our manufacturing center’s location toconsistently develop and produce high quality products that meet thespecific needs of various customers.

As a fully vertically integrated power plantmanufacturer, we can cover all the processesfrom casting and forging to equipmentmanufacturing and whole turnkey EPC. Weunderstand any issue in our field, from basicfundamentals to specific applications.

We can provide competitive solutions as weproduce steam turbines, generators, and alltypes of heat exchangers in our own facility.

Our robust and certified managementsystem supports our on-time delivery ofproducts and services, and reinforcesour commitment to quality control,environmental protection, and health andsafety at work.

Changwon plant in Korea Plzen plant in Czech Republic Doosan VINA plant in Vietnam

9.0 GW/Yr

9.3 GW/Yr



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Eraring power station, AustraliaNon-OEM upgrade project withelectrical output and performanceincrease from 660MW to 750MW

“We satisfied with its operating and

performance without any problems.”

Managing director,

Eraring power station

Full range of servicesfor our customers

Maintenance repair overhaul

• Spare part supply and management

• Expert services applying advanced

diagnostic tools

• Troubleshooting

• Overhauling and repairing for turbine

hall including generator, condensate andfeedwater equipment

• Service hotline in case of emergencies

• Residual lifetime assessment for turbine

and generator

• Measuring of performance degradation

• Advance repair technology

• On-site machining

Long-term services agreement

• Partnership with OEM

• Remote monitoring

• Predictable long-term maintenance costs

• Optimized maintenance programme and

costs

• Guaranteed availability or reliability

• Overhauling in shortest possible time

Retrofit and modernization

• Turbine and generator retrot

including OEM and non-OEMequipment improves performenceand extends lifetime.

• Return on investment 3-5 years

• Use of original foundation with minor

modification

• Replacement of old steam path with

3D blading• Reverse engineering for non-OEM

turbine and generator

• Retention of original turbine design

and dimensions (bearing span, etc.)

• Use of original condenser and heaters

• Control system upgrade

• Generator rewinding of old stator and/or

rotor coils with new materials, enhancedinsulation, and greater capacity

Doosan understands the operational challenges you faceon a day-to-day basis. This is why we offer entire range ofservices to help our customers find maximum potential andbenefit from your plants. We are ready to assist our customersand solve any problems they may encounter.



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A flexibleapproach

Turnkeydelivery

Doosan provides a range of products and services for power engineeringand industrial applications, including supply of steam turbines,generators, and heat exchangers, turbine-generator sets, and turbineislands up to turbine machine halls, all of which are based on ourproprietary design, research, and development.

Doosan expertise can help youat every stage of your turbineproject, from helping with initialinvestment planning and projectdocumentation to commissioningthe plant for commercial operation.

We work hand-in-hand with our customersto deliver turnkey projects that take yourinvestment from design to commercialsuccess. We have developed standardizedproject solutions and proven designprinciples for even the most advancedsteam parameters, including supercriticaland ultra-supercritical.

Our scope of supply includes equipmentsupply of steam turbines, generatorsand heat exchangers, turbine-generatorsets, and turbine islands up to turbinemachine hall including civil work mainly TG

foundation, erection, commissioning, andguarantee performance tests. You can beassured that we are capable of completeturnkey delivery.

We offer:

• High operating reliability and exibility

• Easy maintenance for shorter shutdowns

• High reliability for longer intervals

between overhauls

• After sale service, including long-term service contracts

• Ongoing modernisation programs offered

in line with the latest developments

• Continuous enhancements in new

construction techniques

• Comprehensive in-house research and

development facility, covering all majortheoretical disciplines, with an emphasison fluid dynamics research

• Application of technical diagnostics,

including remote monitoring

Renewablepower plants –

biomass, waste-to-energy, solar,

etc.

Combined cyclepower plantsand add-on

projects

Fossil fuel-firedpower plants,

includingsupercritical(e.g., coal)

Nuclear powerplants

Utilities andmunicipalities

Industry(sugar, pulpand paper,chemistry,

metal, oil andgas, etc.)

Districtheating and

cogenerationplants

We design and manufacture products fora wide range of applications, including:

Other applications include:

Doosan 21Delivering cutting-edge turbine and generator technologies


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23Delivering cutting-edge turbine t echnologies

The waywe work At Doosan, we understand that our products and services are only asgood as the people behind them, so we work hard to recruit, train, anddevelop the very best in the industry.

Our people are at the center of who weare, so we take genuine care in their development, making their cultivationour long-term priority. We are alsocommitted to the education of our youth,to ensure we develop a new pipelineof technology, design, engineering andproject management talent and retainan unparalleled breadth of knowledgewithin our company.

Transferring knowledge and experience tothe next generation strengthens thestability and longevity of our business andgives our customers reassurance that ourengineering competency is sustainable forthe long term.

Corporate social responsibilityIn all territories in which we operate,we embrace customer and communityvisions for sustainability. Doosan corporatesocial responsibility (CSR) programe is builton three pillars: education, sustainabilityand community. This provides us witha framework through which to promoteexcellence in science, technology andengineering education, minimize the

environmental impact of our operations,prioritize product quality, health and safety,and make a positive difference in our localcommunity.

CommunitySustainabilityEducation

Nuturingtalent in:

Engineering

TechnologyProjectManagement

Design

Doosan 23Delivering cutting-edge turbine and generator technologies


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22 Doosan Volvo-ro Seongsan-Gu,Changwon, Gyeongnam 51711, Korea(T) +82 55 278 6114, 7114, (F) +82 55 264 5551~2www.doosanheavy.com

Doosan Heavy Industries & ConstructionTylova 1/57 Plzen, 301 28Czech Republic(T) +420 378 185 000, (F) +420 378 185 910www.doosanskodapower.com

Doosan Škoda Power

With our extensive global network,Doosan meets various customer needs around the world.

Subsidiaries Branch Offices

Global Network

HEAD OFFICE & CHANGWON PLANT 22 Doosan Volvo-ro Seongsan-Gu,Changwon, Gyeongnam 51711, KoreaTel +82 55 278 6114, 7114Fax +82 55 264 5551~2

Seoul Office465 Gangnam-daero, Seocho-gu,

Seoul, 06611, KoreaTel +82 2 513 6114Fax +82 2 513 6200

Doosan Škoda Power Tylova 1/57, 301 28, Plzen,Czech RepublicTel +420 378 185 000

Doosan Power Systems ArabiaP.O. Box 7937, 1st Floor Al HamraPlaza, Palastin Street, Jeddah21472 Saudi ArabiaTel +966 012 261 3074

Doosan ATS America11360 N. Jog Road Palm BeachGarden, Florida 33418, U.S.ATel +1 561 572 9090

Doosan VINADung Quat Economic Zone, Binh Thuan,Binh Son, Quangngai, Vietnam

Tel +84 55 3618 900

Global Marketing Office

Tokyo OfficeMita Kokusai Bldg, Room 2413, 1-4-28Mita, Minato-Ku, Tokyo 108-0073, JapanTel +81 3 3452 5451

Riyadh OfficeOffice No. 205&206, Akariya the Plaza,Olaya Street, Riyadh, 11423,

Kingdom of Saudi ArabiaTel +966 1 419 1696

Abu Dhabi OfficeP.O. BOX 27767, Al Ghaith Tower, Suite508 Hamdan Street, Abu Dhabi, U.A.E.Tel +971 2 627 6273

Dubai Office30th Floor, H Office Tower Sheikh ZayedRoad, Dubai, P.O Box : 11859, U.A.ETel +971 4 327 5545

Cairo Office2nd Floor, Land Mark Building,67 El Teseen St., 5th Settlement,New Cairo, EgyptTel +202 2613 1038

Hanoi OfficeDaeha Business Center, #1101,360 Kim Ma Street, Ba Dinh District,Hanoi, Vietnam

Tel +84 90 463 4023Bangkok OfficeM-Thai Tower, 10th Floor, All SeasonsPlace, 87 Wireless Road Phatumwan,Bangkok 10330, ThailandTel +66 2 654 0690

Jakarta OfficePlaza Bapindo, Mandiri Tower 20F, JI Jend Sudirman No 54-55, Jakarta,IndonesiaTel +62 21 2995 0101

Manila OfficeRoom. 1109~1110, 11F, Ayala Tower

one and Exchange plaza, AyalaTriangle, Ayala Ave, Makati cityTel +63 2 949 8060

Taipei Office8F-7, No.495, Gunagfu South Road,Xinyi Dist., Taipei, Taiwan, R.O.CTel +886 2 2720 2050

New Delhi Office16th Floor, DLF Square, JacarandaMarg, Near N H- 8, DLF Phase- II,Gurgaon- 122002 (Haryana)Tel +91 124 388 1700

Mumbai Office501, 5th Floor, CNB Square Bldg,Sangam Complex, Andheri-KurlaRoad, Andheri(E),Mumbai - 400 059Tel +91 22 6177 0501

Beijing Office

Gateway Plaza. Tower B,19th Floor, No.18 XiaguangliNorth Road, East Third Ring,Chaoyang DistrictBeijing, 100027, ChinaTel +86 10 8454 7136

Shanghai OfficeRm 2903A, Gubei InternationalFortune Center, No. 1438,Hong Qiao Road, Chang Ning District,Shanghai 201103, ChinaTel +86 21 5877 8696

Johannesburg Office12F, The Forum, 2 Maude Street,Sandton, Johannesburg, South AfricaTel +27 113 265 790

Frankfurt Office7th Floor, Arabella Center LyonerStrasse 44-48 60528 Frankfurtam Main, GermanyTel +49 69 69 5004 0

Santiago OfficeAv. Nueva Tajamar 481, Torre Sur,Piso 11, Oficina 1103, Las Condes,Santiago, ChileTel +56 2 2657 3341

New Jersey Office400 Kelby Street, Parker Plaza 10thFloor, Fort Lee, NJ 07024, U.S.A.Tel +1 201 944 4554

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