SOCIALIST REPUBLIC OF VIETNAM Ministry of Industry and Trade (MOIT) Guideline for Technical Regulation Volume 2 Design of Thermal Power Facilities Book 1/12 « Boiler » Final Draft June 2013 Japan International Cooperation Agency Electric Power Development Co., Ltd. Shikoku Electric Power Co., Inc. West Japan Engineering Consultants, Inc. IL CR(2) 13-092 Table of Contents Chapter-1. Comparison between Technical Regulation and Technical Guideline of boiler ............................ 1 Chapter-2. Each Items of Guideline ................................................................................................................ 2 Chapter-3. Reference International Technical Standards ............................................................................ 118 Chapter-4. Reference Japanese Technical Standards .................................................................................. 123 Chapter-5. Reference TCVN ....................................................................................................................... 128 Chapter-6. Referenced Literature and Materials ......................................................................................... 132 List of Tables Table- 1: Comparison between Technical Regulation and Technical Guideline of boiler ............... 1 Table- 2: Classification of types for boiler ...................................................................................... 4 Table- 3: Type of power boiler ........................................................................................................ 6 Table- 4: Steam condition for boiler ................................................................................................ 7 Table- 5: Classification of steam power plant by use conditions (C1) ............................................ 7 Table- 6: Classification of steam power plant by use conditions (C2, C3, C4) ............................... 8 Table- 7: Comparative example for general properties of C-heavy oil, VR, Orimulsion .............. 10 Table- 8: Analysis value of petroleum coke and bituminous coal ................................................. 11 Table- 9: Type of fuel for thermal power boiler ............................................................................ 17 Table- 10: Type of HRSG .............................................................................................................. 29 Table- 11: Sample of effluent composition .................................................................................... 34 Table- 12: Outlet steam pressure of HRSG ................................................................................... 35 Table- 13: Furnace heat liberation ratio ......................................................................................... 43 Table- 14: Seismic design methodology ........................................................................................ 58 Table- 15: Shape of fin-tube .......................................................................................................... 64 Table- 16: Recommended materials for main part of boiler .......................................................... 75 Table- 17: Standards for tough fracture ......................................................................................... 79 Table- 18: Limitation of thickness for cylindrical or conical body ............................................... 81 Table- 19: “κ” value (according to ASME) ................................................................................... 82 Table- 20: Factor “α” for minimum thickness of water type, super-heater tube, re-heater tube, economizer tube .......................................................................................................... 91 Table- 21: Longitudinal joint efficiency ........................................................................................ 92 Table- 22: “κ” value ....................................................................................................................... 92 Table- 23: Corrosion allowance ..................................................................................................... 92 Table- 24: Limit of minimum thickness ........................................................................................ 93 Table- 25: Boiler trip item and application .................................................................................. 115 Table- 26: Reference international technical standards ............................................................... 118 Table- 27: Reference Japanese technical standards ..................................................................... 123 i Table- 28: Reference TCVN ........................................................................................................ 128 List of Figures Fig- 1: Independent super-heater cycle ............................................................................................ 3 Fig- 2: Independent super-heater ..................................................................................................... 3 Fig- 3: Dry accumulator .................................................................................................................. 3 Fig- 4: Wet accumulator .................................................................................................................. 3 Fig- 5: Gas-fired once-through boiler (700MW) ............................................................................. 9 Fig- 6: Typical fuel System of gas-fired boiler ................................................................................ 9 Fig- 7: Oil-fired once-through boiler (700MW) ............................................................................ 12 Fig- 8: Typical fuel system of heavy oil-fired boiler ..................................................................... 12 Fig- 9: Coal-fired Once-through boiler (1000MW) ....................................................................... 15 Fig- 10: Coal-fired Once-through boiler (1050MW) ..................................................................... 15 Fig- 11: Coal-fired Once-through boiler (1050MW) ..................................................................... 15 Fig- 12: Typical fuel system of coal for pulverized coal-fired boiler ............................................ 16 Fig- 13: Boost arrangement of primary fan ................................................................................... 16 Fig- 14: Parallel arrangement of primary fan ................................................................................ 16 Fig- 15: EL Paso type boiler (B&W) ............................................................................................. 18 Fig- 16: Natural circulation type boiler (156MW) ........................................................................ 19 Fig- 17: Carolina type boiler (B&W) ............................................................................................ 19 Fig- 18: Relation specific gravity of water with steam .................................................................. 20 Fig- 19: Lamont boiler ................................................................................................................... 20 Fig- 20: Forced circulation type boiler (220MW) ......................................................................... 20 Fig- 21: Universal pressure (UP) boiler (B&W) ........................................................................... 22 Fig- 22: Mono tube Sulzer boiler .................................................................................................. 23 Fig- 23: Mono tube Sulzer boiler .................................................................................................. 23 Fig- 24: Benson boiler (Rise and fall type) ................................................................................... 23 Fig- 25: Benson boiler (Meander type) ......................................................................................... 23 Fig- 26: Benson boiler (BKH) ....................................................................................................... 24 Fig- 27: Benson boiler (BKH) ....................................................................................................... 24 Fig- 28: Ramsin boiler ................................................................................................................... 25 Fig- 29: Relation furnace gas velocity with solid combustion method ......................................... 26 Fig- 30: Bubbling FBB .................................................................................................................. 26 Fig- 31: Internally CFB boiler (Ebara) .......................................................................................... 26 Fig- 32: Typical system of coal-fired circulation fluidized bed boiler .......................................... 27 Fig- 33: CFB reheat boiler (B&W) ................................................................................................ 28 Fig- 34: CFB non-reheat boiler (B&W) ........................................................................................ 28 ii Fig- 35: CFB FA nozzle in furnace ................................................................................................ 28 Fig- 36: Circulation FBB ............................................................................................................... 28 Fig- 37: