Turbinen- und Anlagentechnik GmbH
Schulstraße 43 D-65795 Hattersheim / Germany Telefon : +49 6190 891678 Telefax : +49 6190 72546 E-Mail :
[email protected] tuba@tuba-turbine .de Internet : www.tuba-turbine.de www.tuba-turbine.de
Ref.: 139 One GE, Frame 5, MS 5001 N, zero hour overhauled – Gas Turbine Package 24,25 MW Scope of supply: Simple cycle, single shaft/two bearings heavy duty type gas turbine and axial compressor with ten (10) chambers combustion system with individual fuel nozzles, double ignition system (Option: Dry NOX emission control system). MS 5001 Gas Turbine package complete with: NEW − Simple cycle, single shaft 2 bearings heavy duty type gas turbine and axial compressor − Fabricated structural basement, supporting the gas turbine, alternator and its own auxiliaries, the air inlet and exhaust gas plenum X − 2 stage high efficiency filter X − Base mounted junction boxes − Starting system with electrical engine / Diesel − Integral mounted gauge board, installed on turbine frame skid, with indication of the main turbine pressure parameters X − Vibration detector seismic type X − Thermocouples for measuring the gas turbine critical temperatures − Header and nozzles for compressor cleaning − Load coupling between the speed reduction gear and alternator X − Inlet ducts X − Exhaust ducts − Closed forced-feed lube oil system common for the gas turbine and driven equipment, complete with: a) Carbon steel, internally epoxy painted, lube oil tank located in the gas turbine base b) shaft driven main lube oil pump c) A.C. / D.C. motor driven auxiliary lube oil pump Ref.: 139
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REFURBISHED X X
X X
X X
X X X
d) Twin main lube oil filter with transfer valve e) piping downstream lube oil filters f) lube oil water cooler, shelling tube type located inside the G.T. basement g) lube oil vent − Gas fuel system suitable to receive, at the system inlet flange, natural gas in accordance with G.E. specification GER4170F. The system is complete with: a) Y-type gas strainer b) gas splitter valve c) primary and secondary gas manifolds to nozzles d) Supply pressure switch e) Combined gas stop/speed ratio and control valves f) Gas fuel piping in AISI304 stainless steel g) Instrumentation and all necessary protection devices − Liquid fuel system suitable to receive, at the system inlet flange, distillate type 2 in accordance with G.E. specification GEI4170H. The system is complete with: a) twin L.P. primary filter cartridge type with transfer valve b) fuel oil stop valve c) reduction gear driven fuel oil booster pump d) booster pump by-pass/flow control valve e) pressure control valve f) single H.P. secondary filter g) stainless steel piping downstream primary filter i) Direct pressure fuel oil mechanical atomising system
2.2
X X X
X X X X X X X
X X X X X X X X
G.T. AIR INLET SYSTEM
New gas Turbine Air Inlet System is provided for an up and forward arrangement and consists of: 2 stage high efficiency filter. (Option 2 stage filter GDX reverse flow Pulse-Jet self cleaning filter) − Blow-in door and relevant instrumentation − Air inlet duct (carbon steel epoxy painted) from the filter chamber to the gas turbine inlet plenum, − 2,5 m (baffles) silencer − C. S. supporting structure and ladders −
Ref.: 139
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NEW X X X X X
REFURBISHED
2.3
ACOUSTICAL ENCLOSURE
Acoustical Enclosure, suitable for outdoor installation, is to be anchored on the unit base plat, no foundation is required. The enclosure, supplied with loose walls and roof, to be erected at site, is provided to assure acoustical abatement and thermal separation to the outside. The expected average sound attenuation is 90 dB(A) pressure level at one meter from the enclosure. The Acoustical enclosure shall be accessible by ladders and walkways The following equipment and system are provided inside the enclosure: − Fire detection system with thermal type detectors − CO2 fire extinguishing system (piping and spray nozzles) − Internal A.C. and D.C. emergency lighting − Ventilation system complete with A.C. motor driven fan − Conveying ventilation system ducts
2.4
NEW X X X X X
EXHAUST GAS SYSTEM
New vertical turbine exhaust gas system
NEW
Transition piece Vertical Silencer Standard exhaust stack (12 mt. height) Drain from exhaust hood to water trap
X X X X
− − − −
2.5
REFURBISHED
REFURBISHED
REFURBISHED SPEED REDUCTION GEAR
The Speed Reduction Gear, located between the turbine and the generator, is coupled to the G.T. exhaust plenum, with 5100/3000 rpm ratio, and provided with the following auxiliary facilities: − Seismic type vibration detector, located on the gear case and connected with the G.T. monitoring and protection system − Bearing embedded RTD's for the bearings temperature control 2.6
REFURBISHED ELECTRICAL GENERATOR
The electrical generator is a Synchronous machine, ventilated in water circuit, with the following characteristics: − Manufacturer: BRUSH − Nominal Voltage 10.5 kV − Voltage’s Range − Rated power @ 90°F 27.25 MVA − Frequency 50Hz − Power factor (cos.∅ ) 0,80 Ref.: 139
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Cooling air and stator windings RTD's and relevant terminal junction boxes − Bearing embedded RTD's for bearings temperature control − Seismic vibration type detectors connected with the gas turbine monitoring and protection system − Brush less excitation type with the necessary equipment suitable for the excitation control − Ventilation fans on the generator shaft ends − M.V. section with Current and Potential transformers (CT's & PT's) for metering and protection and Surge arrestors and lightning protection − Neutral isolated to the ground −
2.7.
CONTROL AND L.V. SYSTEM
SpeedTronic MKV Symplex cabinet processor based control panel incorporating the following functions: −
Turbine control and protection • Monitoring • Annunciation • Fire and gas protection • Vibration monitoring and protection • Integrated generator control • Serial data link (RS232C via Standard Modbus protocol) for remote station communication •
−
Generator control and protection panel incorporating the following functions:
•
•
Automatic voltage regulator (A.V.R.) Generator excitation control Manual and automatic synchronizing facility with check synchronizer Generator protection
−
Motor Control Center for auxiliaries
−
DC system
• •
• • •
Battery rack Battery charger DC distribution panel for GT auxiliaries.
2.8 NEW MISCELLANEA Foundation bolts and plates − Packing − Interconnecting piping between the Gas Turbine Generating Unit and its Auxiliary skids − Instruction manuals for maintenance and operation (four copies) −
2.9 TERMINATION POINTS BASEPLATE − Embedded parts Ref.: 139
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FUEL SYSTEM − Gas fuel supply inlet flange skid edge COOLING WATER SYSTEM − Water inlet/outlet flange at the edge of GT and Generator skids LUBRICATING OIL SYSTEM − Oil filler cap for lubricating oil tank − Inlet/Outlet oil flanges at oil/air cooler skid COMPRESSOR CLEANING SYSTEM − Filler cap of water wash fluid tank VENTS AND DRAINS − Vent and drain outlets at edge of base plate and enclosure AIR INLET FILTER − Inlet face of air inlet filter house − Underside of supporting structure’s plates − Embedded parts EXHAUST DUCTWORK − Exhaust stack UNIT CONTROL SYSTEM & INSTRUMENTATION (WITHIN SKIDS) − Junction boxes located on external surfaces of the equipment AC & DC LV ELECTRICAL (WITHIN SKIDS) − Terminal boxes on electric motors − Terminal boxes on heaters UNIT CONTROL SYSTEM & INSTRUMENTATION (WITHIN PANELS) − Input and output terminals of unit control panels − Input and output terminals of LV boards U.P.S. (220 VAC) − Terminals on MKV GENERATOR SET − Out goers M.V. bars
2.11
ESTIMATED PERFORMANCES CURVES
2.11.1 ESTIMATED BASE LOAD OPERATION AT ISO CONDITION Natural Gas Fuel Output Heat
24.250 KW 12.400 BTU/KW hr.
2.11.2 GUARANTEED PERFORMANCE
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NP expects that the refurbished unit gives the performance as per a new unit, in accordance with the here attached curves. In any case NP commits to supply refurbished units, which are able to give at least the following performance:
- 8% of Estimated Out-put
+ 8% of Estimated Heat-rate FULL SPEED NO LOAD TEST
2.10
Our std. FSNL test shall be performed at our factory prior the preparation for shipment of the unit. 3.1 GAS TURBINE DATA 3.1.1. CONSTRUCTION FEATURES 3.1.1.1. GENERAL -
GAS TURBINE MODEL NUMBER
MS 5001 N
-
GAS TURBINE TYPE
Heavy duty
-
CYCLE
Simple
-
NUMBER OF SHAFTS
One
-
SHAFT ROTATION FACING THE OUTPUT COUPLING IN THE AIR FLOW DIRECTION
Counterclockwise
3.1.1.2. AIR COMPRESSOR -
NUMBER OF STAGES
17
-
TYPE
Axial
-
COMPRESSION RATIO
10 to 1 (I.S.O.)
-
ROTOR
Built-up
-
CASING SPLIT
Horizontally
-
MAX. TIP SPEED (@ 5 100 rpm)
332 m/s
-
OPERATING SPEED
-
Minimum
4845 rpm
-
Normal
5100 rpm
-
Trip (Electronic)
5610 rpm
-
Trip (Mechanical)
5710 rpm
-
LATERAL CRITICAL SPEEDS (ACTUAL STIFFNESS)
-
First
1534 rpm
-
Second
2893 rpm
-
Third
5200 rpm
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3.1.1.3. TURBINE -
NUMBER OF STAGES
Two
-
TYPE
Axial
-
ROTOR
Built-up
-
CASING SPLIT
Horizontally
-
MAX. TIP SPEED (@ 5 100 rpm)
427 m/s
-
OPERATING SPEED
-
Minimum
4845 rpm
-
Normal
5100 rpm
-
Trip (Electronic)
5610 rpm
-
Trip (Mechanical)
5710 rpm
-
LATERAL CRITICAL SPEEDS (ACTUAL STIFFNESS)
-
First
1534 rpm
-
Second
2893 rpm
-
Third
5200 rpm
3.1.1.4. COMBUSTOR -
TYPE
Multiple
-
NO. OF COMBUSTION CHAMBERS
Ten
-
NOZZLES PER COMBUSTOR
One
-
NOZZLE TYPE
Reverse flow
3.1.1.5. BEARINGS -
RADIAL
Elliptical
-
THRUST(LOADED)
Equalizing (Kingsbury)
-
TYPE
Babbit steel backing
-
LUBRICATION
Oil forced
-
DRAIN SYSTEM
Atmospheric
3.1.1.6. INLET PLENUM -
ORIENTATION AVAILABILITY
Up
-
INTERNAL SIZE DIMENSIONS
3,7 x 1,2 m
3.1.1.7. EXHAUST PLENUM
Ref.: 139
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-
ORIENTATION AVAILABILITY
Lateral
-
INTERNAL SIZE DIMENSIONS
3,06 x 1,86 m
3.1.1.8. LUBE OIL SYSTEM SYSTEM CAPACITY (at 3 bar) - TURBINE
30 M3 /h
-
DRIVEN EQUIPMENT
40 M3 /h
-
RETENTION TIME (approx.)
5 minutes
LUBE OIL TANK CAPACIT
6400 liters
LUBE OIL PUMPS -
MAIN LUBE OIL PUMP Type
Gear
-
Drive type
Shaft
-
Capacity
104 M3 /h
-
Discharge pressure
6,20 bar
-
Rated speed
1750 rpm
-
AUXILIARY LUBE OIL PUMP
-
Type
Centrifugal
-
Drive type
A.C. motor
-
Capacity
77 M3 /h
-
Discharge pressure
6,20 bar
-
Rated speed
1800 rpm
-
EMERGENCY LUBE OIL PUMP
-
Type
Centrifugal
-
Drive type
D.C. motor
-
Capacity
54 M3 /h
-
Discharge pressure
1,38 bar
-
Rated speed
1800 rpm
LUBE OIL FILTERS -
FILTRATION DEGREE
25 micron abs.
-
FILTER MATERIAL
Inorganic fibers
3.1.1.9. FUEL SYSTEM GAS FUEL. Ref.: 139
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Gas fuel pressure at GT skid flange bars.
Gas min. 17, max 21
3.1.1.10. STARTING SYSTEM DIESEL ENGINE STARTING -
POWER
342 kW
-
MAXIMUM SPEED
2300 rpm
3.1.1.11. STARTING TIMES (approx.) NORMAL START - NORMAL LOAD
9' 55''
EMERGENCY START PROGRAM (total)
6' 25''
-
ACCELERATION TIME
5' 45''
-
SYNCHRONIZING TIME
0' 10''
-
LOADING TIME
0' 30''
3.1.1.12. MAINTENANCE RECOMMENDATIONS Type of
Equivalent
Inspection
Fired Hours
Combustion
Average
Typical
Man-Hours
8-hours
Crew size
Shifts
8000
160
4
5
Hot Gas Path
16000
480
6
10
Major
32000
1280
8
3.1.3. UNIT SPECIAL TOOLS The maintenance equipment which cannot be found on the tool market and specifically made for the unit maintenance are considered "Special Tools" and will be suplied with the unit for its maintenance. The Special Tools are provided in one element for each identical component also in case of more than unit is supplied. 3.1.3.1. GAS TURBINE Q.ty 1
Description
To be employed for
Fixture
- Accessory coupling alignment - Load coupling alignment
1
Support
- Enclosure panels disassembly
1
Angle
- Exhaust casing diffuser removal
Ref.: 139
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2
Guide pin
- Casing disassembly
1
Wrench
- Over speed bolts disassembly
Wrench
- Lube oil filter transfer valve
1 disassembly
3.1.3.3. ACCESSORIES All the Unit accessory equipment as well as electrical boards will be provided with the necessary special tools. The SPEEDTRONIC control board calibration equipment are not considered special tools and are not covered by this supply list.
Option: Waterinjection Dry Low NOx Upgrading from 24,25 to 25,8 MW
Ref.: 139
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