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Scope of supply For PG6581B Gas Turbine Generating Set from China
(Dual fuel, motor or diesel engine start, simple cycle, axial air inlet, upward exhaust)
1. Gas Turbine Compartments
Single shaft gas turbine fitted on a common base with its accessories is built for weatherproof conditions, the enclosure is provided with thermal and acoustical insulation, heating and ventilation.
1.1 Gas turbine
1.1.1 Air inlet plenum and ducting of compressor
1.1.2 Inlet guide vane ( IGV )
1.1.3 17 stages single shaft axial compressor
1.1.4 10 can-type combustors and igniter, flame detector etc.
1.1.5 3 stages axial turbine
There are bore scope inspection holes on the casings for maintenance. There is anti-corrosion coating on first stage bucket.
1.1.6 Exhaust plenum and ducting
1.1.7 Turbine supports
1.1.8 Load coupling
1.2 Accessory equipment
1.2.1 Multi-shaft accessory gear and over-speed bolts
1.2.2 Auxiliary coupling
1.2.3 Lube oil system
Main lube oil pump, accessory lube oil pump and emergency pump, duplex filters, duplex oil coolers, safety valves, pressure regulating valves, oil level indicators, oil heaters, temperature switches, pressure switches and piping.
1.2.4 Cooling and sealing system
Two cooler fans of turbine, two bleeding valves of compressor and solenoid valves, limit switches, pneumatic isolating valve, orifice and piping.
1.2.5 Hydraulic oil system
Main hydraulic oil pump, accessory hydraulic oil pump, safety valves, change-over duplex filter and valves, manifold, pressure switches and piping.
1.2.6 Trip oil system
Emergency trip oil device, pressure switches, fuel oil stop valve, orifice and piping.
1.2.7 Cooling water system
Temperature control valve of lube oil manifold, orifice and piping.
1.2.8 Starting means
Starting motor or diesel engine, hydraulic torque converter, starting clutch, control solenoid valves, safety valves, pressure switches.
1.2.9 Hydraulic turning gear system
Turning gear device, oil pump ( DC ), control unit, servo-operated cylinder of clutch, oil filter, safety valves, limit switches and piping.
1.2.10 Fuel oil system
Fuel oil pump, fuel oil stop valve, fuel oil filter, flow divider, by-pass control valve, by-pass servo-valve, starting-failure draining valve, check valve, pressure measuring transfer valve, pressure switch, limit switch and piping, fuel gas valve and piping.
1.2.11 Fuel gas system
Gas filter, speed/ratio valve and control valve, servo valve, starting-failure draining valve, pressure switch, limit switch and piping.
1.2.12 Atomizing air system
Main atomizing air compressor, starting atomizing air compressor, atomizing air precooler, solenoid valve, check valve, safety valve, temperature switch, pressure switch and piping.
1.2.13 Ventilation in enclosure
Ventilation fans
1.2.14 IGV system
IGV actuating device, IGV servo-unit, hydraulic control modules,
accumulator, transmitter for travel, solenoid valve and piping
1.2.15 Measuring system including protection system for over-speed,
over-temperature, vibration, flame-off, lube oil pressure, lube oil
temperature and measuring elements and local instrumentation
such as speed sensor, various thermocouples, vibration sensor,
flame detectors, pressure switches, temperature switches.
1.2.16 Lighting system ( AC, DC ) in gas turbine enclosure
1.2.17 Ductwork for internal wiring of system
1.2.18 Water washing system for compressor
1.2.19 CO2 fire-fighting system and flame detection system
1.2.20 Mist and lube oil separator system
1.3 Gas turbine base
The gas turbine and accessories are mounted on the same base. The lube oil tank and 1#, 2# junction boxes are also mounted on it.
1.4 Enclosure
With ventilation, lighting and fire-fighting devices, the enclosure contain the GT compartment and accessory compartment.
1.5 Walk-way on the unit
Walk-way grid, railing, staircase etc.
2. Control Compartment
The main control panel of the gas turbine generating set are
contained in the cabinet. It is air-conditioned and well illuminated.
The cabinet is set on its own base and enclosure.
2.1 GT control panel ( SPEEDTRONIC MARK V )
2.2 Generator control panel
2.3 Generator protection panel
2.4 M.C.C
2.5 Two sets of air conditioners located at wall
2.6 Cabling and tubing for air conditioning, lighting in the cabinet
2.7 Base of the cabinet
2.8 Enclosure of the cabinet
3. Load Gearbox Compartment
Load gearbox, gearbox base, enclosure with weatherproof, sound
insulation, ventilation, lighting and fire-fighting devices.
4. Generator compartment
4.1 Generator ( type: QFR-38-2 )
4.2 AC brushless exciter
4.3 Permanent magnet pilot exciter
4.4 Generator outgoing lead booth
Including three phases arrestor, discharge counter, protection
capacitor and outgoing terminals
4.5 Generator neutral point booth
Including CT, arrestor, etc.
4.6 Modular Automatic Voltage Regulator ( MAVR )
4.7 Air cooler of generator
4.8 Enclosure of generator ( with weatherproof, sound insulation,
lighting and fire-fighting devices )
5. Air Inlet system
5.1 Self-cleaning air filter and control system
5.2 Air inlet ducting, silencer and support
5.3 Air process system (provide for purging of air filter after treatment of compressing air from compressor) and standby air purging source
6. Exhaust System
6.1 Exhaust ducting and exhaust silencer and expansion joint
6.2 Stack (level of outlet is 20m above base)
7. Fire-fighting Device
CO2 cabinet, control and alarming device and piping
8. Water Washing Skid (One unit will be provided for one power
plant)
9. Special Tools (One set will be provided for one power plant. If there are over three GT Gensets, additional one set will be provided.)
9.1 Tool for liner
9.2 Fixture for fuel nozzles
9.3 2 guide stems ( for dismantling and assembling of bearing cover,
compressor and turbine casing )
9.4 Alignment tools
9.5 Dismantling and assembling tools for No.2 bearing and load
Coupling
9.6 GT Rotor lifting tool
9.7 Generator rotor withdrawing tool
9.8 Disassembling and assembling tools for retaining ring
9.9 Diode fixture tool ( belong to exciter )
10. Wedge Plates and Anchor Bolts
All special packing plates for the unit erection, regulating shims
and anchor bolts ( including ordinary leveling plates and the
embedded parts )
11. Spare Parts Provided with GT Genset
Shall be provided according to �Scope of Supply of PG6581B Gas
Turbine Generating Set �/FONT>
12. Five copies of drawings provided with the GT Genset
12.1 Installation drawings
12.2 Outline of foundation; Arrangement of anchor bolts;
12.3 Interface diagram of enduser’s piping;
12.4 Wiring of gas turbine;
12.5 Clearance of gas turbine;
12.6 Arrangement of gas turbine generating set;
12.7 Center of weight for gas turbine; Center of weight for gas turbine
generating set;
12.8 Alignment;
12.9 Schematic piping system;
12.10 One-line diagram of generator;
12.11 Drawings of spare parts
13. Five copies of documents provided with the GT Genset
13.1Operation and maintenance manual including curves of output
and heat rate at different environmental condition
13.2Installation and alignment instruction
13.3Control specification and manual of turbine control panel
13.4Report of test-run in the factory; Product certificate
13.5Other documents which the enduser needs
Most of the part of the PG6581B gas turbine generator set are licensed by GE.
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