This code specifies the design philosophies and construction standards of gas-steam combined-cycle power plants.
This code is applicable to the new and extended simple cycle and gas-steam combined-cycle power plants whose standard rated output of the gas turbine is 25MW- 250MW as well as renovation works for the similar units; the gas-turbine power plants and the cogeneration gas-turbine power plants whose standard rated output of gas turbine is less than 25MW also can refer to the provisions of this code for application.
Foreword 1. Scope 2. Normative References 3. General provisions 4. Site selection 5. General planning 5.1 General regulations 5.2 Out-of-plant planning 5.3 Planning of the plant site 6. Arrangement of main workshop building 6.1 General regulations 6.2 Arrangement form 6.4 Arrangement of waste heat boiler and its auxiliary devices 6.5 Arrangement of steam turbine 6.6 Control room 6.7 Maintenance 7. Fuel supply equipment and system 7.1 Fuel oil and fuel oil treatment 7.2 Natural gas system and equipment 8. Gas turbine equipment and system 8.1 Gas turbine equipment 8.2 System 9. Waste heat boiler and system 9.1 Waste heat boiler 9.2 Flue gas system 9.3 Water supply system 9.4 Blowdown and exhausting system 10. Steam turbine equipment and system 10.1 Steam turbine 10.2 System and auxiliary equipment 11. Chemical treatment equipment and system 11.1 Desalting treatment of makeup water 11.2 Oil-fueled vanadium-adding inhibitor treatment 11.3 Feedwater, boiler water correction treatment and thermal system steam sampling 11.4 Circulated cooling water treatment 11.5 Anticorrosion 12. Heat engineering automation 12.1 General regulations 12.2 Heat engineering automation level 12.3 Control mode and control room 12.4 Heat engineering inspection 13. Electric equipment and system 13.1 Generator and main transformer 13.2 main electric cabling 13.3 In-plant power utilization system 13.4 DC system 13.5 High-voltage power distribution device 13.6 Electric control building 13.7 Power metering device 13.8 Secondary cabling 13.9 Lighting system 13.10 Cable selection and cabling 13.11 Other electric installations 14. Hydraulic engineering facilities and system 14.1 Water management 14.2 Water supply system 14.3 Water intake structures and pump room 14.4 Pipeline and trench 15. Auxiliary and appurtenant works 16. Building and structure 16.1 General regulations 16.2 Workshop building 16.3 Workshop building structure 16.4 Structures 17. HVAC 17.1 General regulations 17.2 Gas turbine workshop building 17.3 Fuel oil system and fuel gas system structures 18 Environmental protection 18.1 General regulations 18.2 Air pollution control 18.3 Wastewater control 18.4 Noise control 18.5 Environmental monitoring and management 19 Labor safety and industrial health 20.1 General regulations 20.2 Fire-fighting of gas turbine equipment 20.3 Fixed fire extinguisher Appendix A
This code specifies the design philosophies and construction standards of gas-steam combined-cycle power plants.
This code is applicable to the new and extended simple cycle and gas-steam combined-cycle power plants whose standard rated output of the gas turbine is 25MW- 250MW as well as renovation works for the similar units; the gas-turbine power plants and the cogeneration gas-turbine power plants whose standard rated output of gas turbine is less than 25MW also can refer to the provisions of this code for application.
Contents of DL/T 5174-2003
Foreword
1. Scope
2. Normative References
3. General provisions
4. Site selection
5. General planning
5.1 General regulations
5.2 Out-of-plant planning
5.3 Planning of the plant site
6. Arrangement of main workshop building
6.1 General regulations
6.2 Arrangement form
6.4 Arrangement of waste heat boiler and its auxiliary devices
6.5 Arrangement of steam turbine
6.6 Control room
6.7 Maintenance
7. Fuel supply equipment and system
7.1 Fuel oil and fuel oil treatment
7.2 Natural gas system and equipment
8. Gas turbine equipment and system
8.1 Gas turbine equipment
8.2 System
9. Waste heat boiler and system
9.1 Waste heat boiler
9.2 Flue gas system
9.3 Water supply system
9.4 Blowdown and exhausting system
10. Steam turbine equipment and system
10.1 Steam turbine
10.2 System and auxiliary equipment
11. Chemical treatment equipment and system
11.1 Desalting treatment of makeup water
11.2 Oil-fueled vanadium-adding inhibitor treatment
11.3 Feedwater, boiler water correction treatment and thermal system steam sampling
11.4 Circulated cooling water treatment
11.5 Anticorrosion
12. Heat engineering automation
12.1 General regulations
12.2 Heat engineering automation level
12.3 Control mode and control room
12.4 Heat engineering inspection
13. Electric equipment and system
13.1 Generator and main transformer
13.2 main electric cabling
13.3 In-plant power utilization system
13.4 DC system
13.5 High-voltage power distribution device
13.6 Electric control building
13.7 Power metering device
13.8 Secondary cabling
13.9 Lighting system
13.10 Cable selection and cabling
13.11 Other electric installations
14. Hydraulic engineering facilities and system
14.1 Water management
14.2 Water supply system
14.3 Water intake structures and pump room
14.4 Pipeline and trench
15. Auxiliary and appurtenant works
16. Building and structure
16.1 General regulations
16.2 Workshop building
16.3 Workshop building structure
16.4 Structures
17. HVAC
17.1 General regulations
17.2 Gas turbine workshop building
17.3 Fuel oil system and fuel gas system structures
18 Environmental protection
18.1 General regulations
18.2 Air pollution control
18.3 Wastewater control
18.4 Noise control
18.5 Environmental monitoring and management
19 Labor safety and industrial health
20.1 General regulations
20.2 Fire-fighting of gas turbine equipment
20.3 Fixed fire extinguisher
Appendix A
