Erection of SST 5000 Turbine Down Exhaust Rev 10

March 24, 2018 | Author: paulon9271 | Category: Steam Engine, Turbine, Power Station, Valve, Energy Conversion


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Siemens Steam Turbine Constructability Overview (Down Exhaust Unit) © Siemens Energy, Inc. 2011. All rights reserved. Confidential Information Contents SST-5000 Series Turbine (HI-L) - Overview Major Components – Weights and Dimensions Overall Assembly Sequence Detailed Assembly Sequence – General Detailed Assembly Sequence – LP Detailed Assembly sequence – HP/IP Detailed Assembly sequence – Valves Detailed Assembly sequence – Final Alignment Page 2 Jun-12 Confidential Information © Siemens Energy, Inc. 2011. All rights reserved Energy Sector Global Installed Capacity and Ranking Fossil & Nuclear Fleet [GWs] and market ranking 290 Gigawatts Since 1998, Siemens has had over 330 new apparatus Steam Turbines world wide put into service 244 of these for combined cycle applications 64 of these combined cycle units in the Americas (50 and 60 Hz) 561 GW 177 Gigawatts #1 #2 94 Gigawatts #2 Steam Power Plants Gas Turbine and CC Power Plants Nuclear Power Plants Definitions: Siemens’ fleet operating in utilities > 100 MW. Operating plants only; retired, deactivated etc. and projects under construction not included. More than 560 GW installed fleet worldwide Page 3 Jun-12 Confidential Information © Siemens Energy, Inc. 2011. All rights reserved Energy Sector Steam Turbine Global Network Newcastle (UK) ST Engineering Charlotte (US) ST/Gen Manufacturing Muelheim (Germany) ST Engineering & Manufacturing Budapest (Hungary) Blades/Bearings Orlando (US) ST Engineering Cilegon (Indonesia) Condensers Components Charlotte (US) ST Engineering, Procurement and Manufacturing 1st Unit to be Shipped 1st quarter 2012 Page 4 Jun-12 Confidential Information © Siemens Energy, Inc. 2011. All rights reserved Energy Sector Siemens steam turbine conventional power plant portfolio A modular product concept permitting high flexibility Three product lines covering major applications Five basic turbine element types Several modules within each type covering complete power range Common design features, e.g. blading, seal configurations Common design elements, e.g. valves, bearings, auxiliary skids 8.7m2 HI30 HI50 6.9m2 4.4m2 HI60 Conventional reheat turbine product lines ( > 90 MW) Page 5 Jun-12 Confidential Information © Siemens Energy, Inc. 2011. All rights reserved Energy Sector 0 to 12. single or dual side exhaust • Power Range: • ~180 to 480 MW (Two-flow LP turbine) • ~450 to 600 MW (Four-flow LP turbine) • Max Operating Conditions: 2565 psia / 1112º F / 1112º F Page 7 Jun-12 © Siemens Energy. etc. All rights reserved Energy Sector Confidential Information . 2x1.5 m2 50 Hz) • Applied to >180 MW multishaft (1x1. 4x1.4 to 8. 3x1. 5. available with a range of last stage blades (4. Inc.Steam Turbine Series – Turbine Series Features and Variants SST-5000 • First installed in early 90’s – more than 100 in operation • Two or four flow LP turbines.) applications • Double flow LP with down. 2011.7 m2 60Hz. Inc. All rights reserved Energy Sector . 2011.SST-5000 Series Turbine – Combined HP/IP Section Module Shipped to site preassembled from the factory Spring-Back Seals 2 Casing Design Monobloc Rotor Fully 3-dimensional high performance variable reaction blading (3DVTM) Combined Stop and Control Valves – Bolted onto the Lower Half of the HP/IP Casing (assembled on site) Page 9 Jun-12 Confidential Information © Siemens Energy. or down exhaust arrangements High-performance LP blading for different sizes of exhaust area (4. All rights reserved Energy Sector . Inc. dual side. 2011.4 to 8.7 m^2) Efficient erosion protection measures LP Outer Casing Exhaust is Welded directly to Condenser Hardware (no expansion joint) Page 10 Jun-12 Confidential Information © Siemens Energy.SST-5000 Series Turbine – LP Turbine LP Inner Casing – Supported on Bearing Pedestals Single Piece Bolted Upper Half Double flow LP with single side. All rights reserved Energy Sector . Inc. 2011.SST-5000 Turbine – Cross Section One Cross Over Pipe Shared Journal Bearings Combined Thrust/Journal Bearing Hydraulic Turning Gear Fixed Bearing Pedestals Page 12 Jun-12 Confidential Information © Siemens Energy. 2011. Inc.Double Flow Down Exhaust SST5000 Configuration Cross Over Pipe Generator HP/IP Turbine LP Turbine Valves Page 13 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . Qty 1 2 2 1 2 2 1 1 2 1 1 1 Component K Turbine Section Assy. This is not a complete packing list and the data is subject change during design.767 10. LP Rotor Assembly Stationary Blade Ring Assy.846 20.Major Components Weights and Dimensions Please see following table for list of some major components. All rights reserved Energy Sector . dimensions and quantities. RHT Stm Stop/Control Valve Assy.776 151. Main Stm Stop/Control Valve Assy. weights.006 38.449 36.496 23.017 7. 2011. Guide Blade Carrier Assy.693 83.944 52. LP Inner Case Upper Part LP Inner Case Lower Part Guide Bolts Bearing 1 Casing Assembly Bearing 2 Casing Assembly Bearing 3 Casing Assembly Gross [lb] 269. Inc.250 167.552 9.156 Length [in] 377 117 147 359 168 129 227 236 99 160 230 230 Width [in] 144 117 132 146 96 73 181 227 52 80 68 68 Height [in] 151 85 109 149 45 49 172 142 45 79 93 93 Page 14 Jun-12 Confidential Information © Siemens Energy. 060 375 375 383 383 208 208 134 134 107 107 156 156 Page 15 Jun-12 Confidential Information © Siemens Energy.909 Length [in] 500 103 162 175 Width [in] 138 56 79 62 Height [in] 158 103 142 71 1 1 1 1 LP Outer Casing End Wall Front LP Outer Casing End Wall Rear LP Outer Casing Upper Part GS LP Outer Casing Upper Part TS 105. weights.548 7. Inc. dimensions and quantities.234 64.055 7.937 5. Qty 1 1 1 2 Component Lube oil skid Control Fluid Skid Gland Condenser Skid LP Induction Valve Down Exhaust Gross [lb] 70. This is not a complete packing list and the data is subject change during design.070 88.714 69.Major Components Weights and Dimensions Please see following table for list of some major components. All rights reserved Energy Sector . 2011. there is overlap between construction and commissioning schedules. etc. technical experience of construction personnel. project schedule. Jun-12 © Siemens Energy. depending on how the project is being executed Construction and Commissioning Times estimates strongly depend on manpower availability. All rights reserved Energy Sector Page 16 Confidential Information .Steam Turbine Series – Constructability • Expected Construction Times for the SST-5000 SST-5000: 7-10 Months • Modular features of both series (core turbine components and modular auxiliary systems) aid the constructor to reduce the amount of on site work • Commissioning Times Ranges from 2-3 Months • In some cases. 2011. Inc. Steam Turbine Series – Equipment Lead Times • Siemens Standard quoted Lead Time delineates the main ST components. to facilitate construction of the unit on site: • Bearing Pedestals: • LP Outer Casing: Ex-Works – 2 months Ex-Works – 1 month • These two components are required to start installation of the steam turbine equipment and are sequenced before the HP/IP. comprising of the HP/IP and LP Turbine Rotor/Inner Casing • However. Inc. other equipment will be shipped earlier. the plant construction team should be ~2 months into the erection of the ST equipment Page 17 Jun-12 Confidential Information © Siemens Energy. 2011. so by the time the main ST components reach site. All rights reserved Energy Sector . LP turbine and LP rotors. 2011. All rights reserved Energy Sector .Overall Assembly Sequence Following is the general assembly sequence for SST5000 turbine Insert Anchor bolts. Align and Grout bearing pedestals in foundation Install HP/IP turbine – shipped completely assembled Install LP turbine Install LP outer casing Install LP inner casing – lower half Install LP rotor and align Install LP inner casing – upper half Install LP outer casing – upper half Install Cross Over Pipe Install Valves Page 18 Jun-12 Confidential Information © Siemens Energy. Inc. 2011. Inc.Overall Assembly Sequence Siemens provides Erection and Commissioning Manuals Manuals include: All required field installation drawings and BOMs ( Bills of Material ) Weld procedures for field welds of Siemens to Siemens welds Data sheets indicating how to take and record critical data for review and record Project sequence for erection Reference schedule in manual depicts a 7 month schedule for the erection phase of the ST/Generator components Page 19 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . centering guides are grouted in place Page 20 Jun-12 Confidential Information © Siemens Energy. to ensure proper rotor train alignment Following completion of the alignment process. Inc. bearing pedestals are grouted in place (bearing pedestals are fixed in place) Siemens provides horizontal guide pin. All rights reserved Energy Sector . used as lateral fixed point and for alignment of the LP Inner Casing Following completion of the alignment process.Assembly Sequence – Foundation and Bearing Pedestals Overview of Siemens Foundation and Bearing Pedestal/Alignment Hardware: Siemens provides anchor bolts and spherical nuts and washers for bearing pedestals Nuts and washers inserted in embedment box prior to final pour Bearing Pedestals are aligned laterally and vertically in relation to each other. 2011. All rights reserved Energy Sector Page 21 Jun-12 Confidential Information .Assembly Sequence – Foundation and Bearing Pedestals (Overview) Foundation checks. 2011. and Grouting: 3-4 Weeks © Siemens Energy. Pedestal Installation. Alignment. Inc. All rights reserved Energy Sector . 2011. Inc.Assembly Sequence – Down Exhaust Foundation Foundation Preparation – Bearing Pedestal Foundation Box Embedments Embedment Box for Anchor Bolt Nut and Washers not Provided by Siemens as a part of a standard offer Page 22 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . 2011. Bearings and Centering Guide Page 23 Jun-12 Confidential Information © Siemens Energy. Inc.Detailed Assembly Sequence – General – Down Exhaust Contd. and grouted in place Page 24 Jun-12 Confidential Information © Siemens Energy. Inc. welded. final design and supply by foundation design entity) Centering Guide Aligned to Bearing Centerline.Assembly Sequence of Down Exhaust LP turbine – Mounting of LP Inner Casing Centering Guide Embedment for Centering Guide (details provided by Siemens. 2011. All rights reserved Energy Sector . thus most of the work involved alignment of the casing and subsequent alignment to the LP turbine rotor HP/IP Installation and Alignment (Casing and Coupling to LP): 3-4 Weeks Page 25 Jun-12 Confidential Information © Siemens Energy. 2011. All rights reserved Energy Sector . Inc.Detailed Assembly Sequence – HP/IP turbine HP turbine in the following description refers to the combined HP/IP “K” type turbine: K Turbine is Pre-Assembled from the factory. Detailed Assembly Sequence – HP/IP turbine Assembled K turbine. 2011. Page 26 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector . Inc. All rights reserved Energy Sector . 2011.Lifting & Setting the K turbine on the Foundation Page 27 Jun-12 Confidential Information © Siemens Energy. Lifting & Setting the K turbine on the Foundation Page 28 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . Inc. 2011. 2011. Installed K turbine on foundation Page 29 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector .Detailed Assembly Sequence – HP/IP turbine – Contd. designed to withstand the vacuum forces imparted during operation Once completed. Inc. radial/axial clearances checked. no additional installation or alignment is required LP Inner Casing Inner Casing components are pre-aligned from the factory (upper and lower halves) Lower Casing is installed and aligned via tightwire to the rest of the turbine train in the field Rotor is then installed. 2011. All rights reserved Energy Sector .Assembly Sequence of Down Exhaust LP Turbine (Design/Assembly Features) LP Outer Casing Outer Casing design has no impact on turbine rotor train alignment (design is inherently decoupled from LP inner casing and Rotor) Casing is purely used to direct steam to the condenser. nor additional individual alignment efforts on LP diaphragms or blade rings Page 30 Jun-12 Confidential Information © Siemens Energy. upper halves of blade rings and diaphragms are installed and upper half of the inner casing is installed There is no need to remove the LP rotor once installed. All rights reserved Energy Sector . Inc. Inner Casing Installation and Alignment.Detailed Assembly Sequence – LP Turbine LP Outer Casing Construction. 2011. Completion of Overall LP Turbine: 17-19 Weeks Page 31 Jun-12 Confidential Information © Siemens Energy. Assembly Sequence of Down Exhaust LP turbine Page 32 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . 2011. Inc. All rights reserved Energy Sector Page 33 Jun-12 Confidential Information .Assembly Sequence of Down Exhaust LP turbine – Continued Horizontal Joint Bolt Connection Outer Casing Lower Half Internal Stiffeners End Wall Side Wall © Siemens Energy. Inc. 2011. Assembly Sequence of Down Exhaust LP turbine – Continued LP Outer Cylinder Base End Walls Page 34 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector . 2011. Inc.Assembly Sequence of Down Exhaust LP turbine – Continued Lower End Walls on Foundation Page 35 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . 2011. All rights reserved Energy Sector . Inc. install. 2011.Assembly Sequence of Down Exhaust LP turbine – Continued Set. and align side walls for final welding Page 36 Jun-12 Confidential Information © Siemens Energy. 2011.Assembly Sequence of Down Exhaust LP turbine – Continued Installation of internal support hardware © Siemens Energy. Inc. All rights reserved Energy Sector Page 37 Jun-12 Confidential Information . All rights reserved Energy Sector . 2011.Assembly Sequence of Down Exhaust LP turbine – Continued Assemble and align outer casing cover Set LP outer cover aside Page 38 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector . 2011.Setting the LP Inner Casing Lower Half Note: Guide blade Carriers come shipped already installed in the lower half casing. Page 39 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector .Assembly Sequence of LP turbine – Continued Set down Inner casing Bottom Half Page 40 Jun-12 Confidential Information © Siemens Energy. 2011. Inc. Preparing the rotor for installation Page 41 Jun-12 Confidential Information © Siemens Energy. 2011. All rights reserved Energy Sector . Inc. Inc.Installing the rotor Page 42 Jun-12 Confidential Information © Siemens Energy. 2011. All rights reserved Energy Sector . Inc.Installing the Guide Blade Carriers and L-0 Blade Rings Page 43 Jun-12 Confidential Information © Siemens Energy. 2011. All rights reserved Energy Sector . Inc. 2011. All rights reserved Energy Sector .Cleaning/Preparing and Installing the Inner Casing Upper Half Page 44 Jun-12 Confidential Information © Siemens Energy. Completed Assembly Sequence of LP turbine – Down Exhaust Shown Assembled LP Page 45 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . 2011. Inc. Building the Crossover Pipe Crossover Pipe ships as 4 Major Pieces Fit & Welded in the Field Page 46 Jun-12 Confidential Information © Siemens Energy. Inc. All rights reserved Energy Sector . 2011. Detailed Assembly Sequence – Valves Valve Installation. All rights reserved Energy Sector . Inc. Instrumentation: 3-4 Weeks Page 52 Jun-12 Confidential Information © Siemens Energy. 2011. Main Steam / Hot Reheat Valves Preparation Page 53 Jun-12 Confidential Information © Siemens Energy. 2011. Inc. All rights reserved Energy Sector . Inc. All rights reserved Energy Sector . 2011.Main Steam / Hot Reheat Main Steam Valves / Hot Reheat Valves Page 54 Jun-12 Confidential Information © Siemens Energy. Inc.Main Steam / Hot Reheat Valves Installing the HP Combined Stop / Control Valve Page 55 Jun-12 Confidential Information © Siemens Energy. 2011. All rights reserved Energy Sector . Inc. 2011.Main Steam / Hot Reheat Valves Page 56 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . Instrumentation.Detailed Assembly Sequence – Final Alignment. Final Alignment. Inc. Final Instrumentation Installation. 2011. All rights reserved Energy Sector . Preparation for Flushing: 5-6 Weeks Page 57 Jun-12 Confidential Information © Siemens Energy. etc. Inc. 2011. All rights reserved Energy Sector Page 58 Jun-12 Confidential Information .Assembly Sequence Overview – Bearing Instrumentation Cable Connection/Routing into Bearing Pedestal Instrumentation Junction Boxes for Wiring Provided with equipment View of Installation Method for Speed Probes © Siemens Energy. Inc. All rights reserved Energy Sector . 2011.Assembly Sequence Overview– HI Turbine Instrumentation Thermocouples Pre-Wired to External Junction Boxes (mounted on HI Turbine Casing) Page 59 Jun-12 Confidential Information © Siemens Energy. 2011.Lube Oil Skid Lube Oil system will be shipped pre-assembled on two skids Duplex Filters DC Pump AC Pumps Lube Oil Skid Standard design is for installation ~15 feet below ST centerline For down exhaust configurations. option can be supplied for installation at grade level Oil Mist Eliminator Lift Oil Pumps Lube Oil Cooler Skid Lube Oil Pump/Tank Skid © Siemens Energy. All rights reserved Energy Sector Page 60 Jun-12 Confidential Information . Inc. 2011. Inc. All rights reserved Energy Sector .Gland Steam Condenser Skid Gland steam condenser skid will be shipped assembled Exhauster 2x100% Gland Steam Condenser Page 61 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . 2011. Inc.Control Oil System Control Oil system will be shipped assembled to site Page 62 Jun-12 Confidential Information © Siemens Energy. 2011.Completed down exhaust Turbine Page 63 Jun-12 Confidential Information © Siemens Energy. All rights reserved Energy Sector . Inc.
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