diapositiva 1 - tpg...exact calculation of natural frequencies induction hardened leading edge...
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Compressori alternativi
Single Casing Single Flow Steam Turbine
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Single Casing Single Flow No Reheat Solution
Steam Turbine Lateral Exhaust Overview
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Auxiliay systems
Generator
Condenser
IP- Turbine
LP- Turbine
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Lateral exhaust direction for floor mounted concept
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Lateral exhaust direction for floor mounted concept
Base mounted arrangementenables low foundation costs
LP exhaust casing, integratedin foundation design
IP-Turbine Generator
Two Casing non Reheat Solution
Lateral exhaust layout
Low profile building
Double flow exhaust
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Non Reheat, Triple Pressure, Lateral Exhaust
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Triple pressure reheat concept with axial exhaust
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Double Casing Single Flow Reheat Steam Turbine
Steam Turbines for Combined CyclesSteam Turbines for Combined Cycles
Medium and Reheat Steam TurbinesMedium and Reheat Steam Turbines
250 MW
350 MW
Compact, robust design
Small flow losses
Relatively constant angle of attack of radial fixed blades
Low relative steam/rotor velocity
The inlet passage of all the sections is designed as a scroll or spiral
Inlet scroll
Advantages
Medium and Reheat Steam TurbinesMedium and Reheat Steam Turbines
Robust design
Suitability for two-shift operation
Excellent reliability as the blade is not made with parts
Simple and fast assembly
All moving blades are manufactured from one piece
One-Piece Blades with shroud
Advantages
Medium and Reheat Steam TurbinesMedium and Reheat Steam Turbines
Customer Benefits High efficiency Reliable operation Resistance against corrosion, long life-time Easy replacement (if ever needed)
Features Free-standing rotating LSB, no lacing
wires Exact calculation of natural frequencies Induction hardened leading edge Circular fir tree root
Typical rotating blade12 % Cr steel precision forged blade
Typical stationary bladeDuctile cast material
Medium and Reheat Steam Turbines - Low Pressure SectionsMedium and Reheat Steam Turbines - Low Pressure Sections
Simple replacement of individual blades
No aerodynamic losses from interconnecting elements
Exact definition of natural frequencies and operation stresses
No stress concentrations caused by interconnecting elements
Free-standing last-stage blades
Advantages
Medium and Reheat Steam TurbinesMedium and Reheat Steam Turbines
20 50 2.5 With lacing wire
26 50 3.96 With lacing wire
31 50 5.5 Free standing
33 50 6.1 Free standing
37 50 7.2 Free standing
43 50 9.6 Free standing
20B 60 2.5 With shroud
26 60 3.96 With lacing wire
30 60 5 Free standing
36 60 6.7 Free standing
LP type Speed Exhaust area LSB type( 1/s ) per flow
( m2 )
Medium and Reheat Steam Turbines - Low Pressure SectionsMedium and Reheat Steam Turbines - Low Pressure Sections
Erosion Protection of Last-Stage Rotor Blades by Incorporating Nozzle Water Removal
Medium and Reheat Steam Turbines - Low Pressure SectionsMedium and Reheat Steam Turbines - Low Pressure Sections
Outer ring channel
Dividing plane
Outlet to the condensator
Slots
Inner ringchannel
Fixedblade
Simplified View of the Water Extraction System
Medium and Reheat Steam TurbinesMedium and Reheat Steam Turbines
