La description
1# Gas Turbine
Firstly, technical specification of 1# gas turbine:
Manufacturer: China Nanjing Turbine and electrical machinery
Co.
Model: PG***1B
Under the condition of ISO(Air Temperature *5℃, Atmospheric
Pressure  1.**3×**5Pa), under basic load, technical
performance indicators of the units are as follows:***0T/M GT
Rotational speed, Intake pressure loss **6Pa, Exhaust
pressure loss **2Pa.
 When units use GEI*****7 fuel, units parameters in single
cycle operation are as follows:
Operation Mode  Basic Load
Fuel                                          Â
 Light Oil     Heavy Oil
Output Power      Â
kWÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
 ****5       Â
****0
Heat Rate Â
KJ/KW.h                   Â
****6Â Â Â Â Â Â Â Â ****9
Heat Consumption
**6KJ/h        Â
**9.8Â Â Â Â Â Â Â **5.8
Turbine Inlet Temperature   â„ƒ  Â
***4Â Â Â Â Â Â Â Â Â Â
***8
 Exhaust
Temperature         Â
℃  Â
**9Â Â Â Â Â Â Â Â Â Â Â Â Â **9
 Air FlowÂ
**3Kg/h                       Â
**1Â Â Â Â Â Â Â Â Â Â Â Â **1
 Oil Consuming Rate  g/KW.h Â
  Â
**6Â Â Â Â Â Â Â Â Â Â Â
**9
* Calculate light oil low calorific value based on
****0KJ/Kg
Secondly, genenrator technical specifications of 1# GT
are as follows:
Manufacturer Nanjing Turbine and Electric Machinery Co.
Model                  QFR****2
Product Standard QJ/***1 NQ*****9
Power              Â
 *6MW
Voltage             Â
*0.5KV
Electric Current   ***4A
Power Factor      0.8
Frequency        Â
 *0HZ
Rotational Speed  ***0 rpm
Excitation voltage  **0V
Excitation Current  **9A
Stator insulation    B
Rotor insulation     F(Examination on B
Grade)
Thirdly, GT Operation
1#GT is in operation from Octo in ***6, until now start it 1,**0
times, among them ignition it 1,**3times. In total, it operates
*2,**6 hours, among them, operation burning fuel(light oil) is
*2,**2 hours, gas fuel(gas) **4 hours.
Fourthly, Introduction to Inspection and
Repair
1. in April in ***9, after operating 3,**0 hours, GT goes into
combustion inspection. We replace the flame tubes 1#, 3# and
*0#.
2. in March in ***3, operating 6,**2 hours, GT goes into half-way
repair. We replace flame tube 9# and positive flame connecting
tubes **2 and **3; *0 transition portions are sent to Shenyang
Liming to repair, replacing inside and outside floating seal and
spraying coating again.
3. in March in ***4, after operating 8,**0 hours, generator goes
into large-scale repair, replacing Bearing 4#, repairing Bearing
3#; The generator guard ring shifts, generator sent to Nanjing
Turbine and Electric Machinery Co. to reassemble.
4. in March of ***5, after operating *1,**2 hours, GT goes into
overhauling.
Overhaul appendix gear box: replace Bearing 2# and Tile 3#,
Bearing 3A# and Tile 5#, Bearing 3B# and Tile #, Bearing 4# and 4
tiles inside and outside.
Overhaul generator: send generator rotor back to Nanjing company
to replace its guard ring.
Overhaul GT body: replace the first level sprayer, *0 transition
portions and tiles of Bearings 1# and 2#.
2# Gas Turbine
Firstly, Technical specifications:
Manufacturer: China Nanjing Turbine and Electric Machinery
Co.
Model: PG***1B
Under the condition of ISO(Air temperature *5℃, Atmospheric
Pressure 1.**3×**5Pa, Relative Humidity *0% ), under the
basic load, units technical specifications are as follows:
GT Rotational speed 5,**3T/M, intake pressure loss **6Pa, exhaust
pressure loss **2Pa. When units use liquid fuel GEI*****7 and gas
fuel GEI—****0E, units parameters in single cycle operation are
as follows:
Operation Model Basic Load
Fuel Light                      Â
         Â
 Oil           Gas
Output Power  kW     Â
           Â
 ****0     ****0
Heat Rate
KJ/KW.h                  Â
 ****4      ****0
Heat Consumption
**6KJ/h         **9         Â
**3
Turbine inlet temperature Â
℃    ***4      Â
***4
Exhaust temperature     Â
℃        **2        Â
**2
Air Flow Â
**3Kg/h                       **9        Â
**9
Secondly, Generator technical specifications
Manufacturer Nanjing Turbine and Electric Machinery Co.
Model             Â
 QFR****2
Phase Number  3
Pole Number     2
Power             Â
 *8MW
Voltage            Â
*0.5KV
Electric Current ***1.8A
Power Factor    0.8
Frequency       Â
*0HZ
Rotational Speed    ***0 rpm
Excitation Voltage   **2V
Excitation Current   **0A
Insulation Class       F
Stator Connection   Y
Thirdly, GT Operation
     3#GT starts operation from July in
***3, until now start **4 times, among them ignition **7 times.
In total, it operates for 6,**1 hours, among which operation
burning liquid fuel (light oil) for 5,**2 hours, burning gas fuel
(gas) for **9 hours. At present, the operation of 3# GT isÂ
normal.
Fourthly, the Introduction to Inspection and
Repair
1. in Nov of ***4, after operating 4,**4 hours, GT goes into
combustion inspection(not to dismantle transition), replacing
flame connecting tubes in 7#*8#(including 7#) and 3#*2#(including
2#), and flame tube like *0#.
2. in April of ***4, after operting 5,**0 hours, Gt goes into
combustion inspection. We replace flame connecting tubes in
7#*8#(including 7#) and 9#*8#(including 9#). We sent 5 transition
portions to Liming to repair: among them, the attrition of left
side tail frame nearby negative camber is so severe as to be sent
to repair.
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