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Tổng quan về nhà máy điện than CFB lớn nhất Việt Nam. Công nghệ lò hơi tuần hoàn tân tiến. Dành cho các kĩ sư làm việc tại các nhà máy nhiệt điện. Rất bổ ích cho các sinh viên đại học và những người đang và sẽ làm trong nhà máy điện có cái nhìn tổng quan chi tiết về các hệ thống và nguyên lý hoạt động.
FOR APPROVAL E Feb 13, ‘13 Issue for Approval J.A.SEO M.K.LEE J.Y.KIM D Nov 26, ‘13 Issue for Approval J.A.SEO E.S.LEE J.Y.KIM C Oct 20, ‘13 Issue for Approval J.A.SEO E.S.LEE J.Y.KIM B Aug 6, ‘13 Issue for Approval J.A.SEO J.K.SEO J.Y.KIM A Mar 31, ‘13 Issue for Approval M.K.LEE J.K.SEO J.Y.KIM REV DATE DESCRIPTION DSGN CHKD APPD PROJECT : TWO(2) x 500 MW MONG DUONG THERMAL POWER PLANT EMPLOYER : CONSULTANT : CONTRACTOR : DESIGNED BY DATE TITLE : M.K.LEE Feb 10, ‘12 CHECKED BY DATE J.K.SEO Feb 10, ‘12 APPROVED BY DATE PROJECT NUMBER DOCUMENT NUMBER REV J.Y.KIM Feb 10, ‘12 ADB/MD1-TPIP/EPC150911 MD1-0-M-100-03-00001 E PLANT OVERALL DESCRIPTION TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Rev.E Content 1.0 INTRODUCTION 1.1 GENERAL 1.2 PROJECT DESCRIPTION 1.3 DESIGN CONDITION AND CODE 1.4 PLANT OVERALL SYSTEM CONFIGURATION 1.5 MAJOR SYSTEM DESIGN CONSIDERATION 19 2.0 PLANT CONTROL PHILOSOPHY 25 2.1 GENERAL 25 2.2 BALANCING CONTROL 25 2.3 PLANT CONTROL MODE 25 2.4 CONTROL FUNCTION OF MAJOR EQUIPMENT 26 3.0 PLANT OPERATION PHILOSOPHY 27 3.1 BASIC CONCEPT OF OVERALL PLANT OPERATION 27 3.2 PLANT OPERATION MODE 27 4.0 PLANT START-UP AND SHUT-DOWN PROCEDURE 32 4.1 PLANT START-UP 32 4.2 PLANT SHUT-DOWN 42 4.3 DEGREE OF AUTOMATION FOR PLANT START-UP AND SHUTDOWN 43 5.0 ABBREVIATION 52 6.0 ATTACHMENTS 54 7.0 REFERENCES 54 i TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION 1.0 INTRODUCTION 1.1 General Rev.E This description introduces and provides a general understanding of system configuration, feature and control scheme of the Mong Duong Thermal Power Plant, which will have a nominal gross output of 540MW per each unit and have two Units, in Cam Pha town, Quang Ninh province, Vietnam This document has been updated with the Contractor’s review and improvement of actual engineering and design However, the document may be improved to reflect the actual engineering and design as required 1.2 Project Description Mong Duong Thermal Power Plant is located adjacent to the national highway N0.I8A, which is about 50km from Ha Long city in the northeast and about 18km from Cam Pha town This location belongs to zone No 3, Mong Duong ward, Cam Pha town, Quang Ninh province Mong Duong Thermal Power Plant, with an area of about 107 hectares, includes Mong Duong comprising X 540 MW coal-fired CFB steam units and Mong Duong comprising X 600 MW PC steam units respectively The plant and facilities provided will comply with the local rules and regulations and the Technical Requirements specified in this document The power island will consist of four (4) Circulating Fluidized Bed (CFB) boilers supplying steam to two (2) steam turbine generators Electric power will be fed to the National Grid at voltage of 500 kV to Quang Ninh 500/220 kV substation The 110 kV transmission line will supply power for the start-up and commissioning, and serve as the standby power source during normal operation The power plan cooling water (once through cycle) will be extracted from Gac Canal (seawater) whilst fresh water is piped to the site from the Thac Thay River located at about 12 km from the site The fresh water supply system will be undertaken by the Owner Coal supplied to the power plant is dust coal mixtures of 5HG dust coal, 6HG dust coal, dust coal and slurry coal from coal mines in Mong Duong - Cam Pha area Coal will be supplied to the terminal point in the receiving tower located at the south side of the plant Heavy Fuel oil Type 2B TCVN 6239-2002 will be used as secondary fuel for boiler start-up and operation at low load Fuel oil is transported to the power plant by specialized barges to the fuel oil unloading jetty Limestone used for the CFB boiler is taken from limestone mines in Hoanh Bo area, Quang Ninh Province, by trucks to Troi port From the port limestone is transported to the power plant by barges to the berth adjacent to the fuel oil unloading berth TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Rev.E Fly ash and bottom ash will be disposed of at the ash pond located about km from the power plant 1.3 Design Condition and Code 1.3.1 Site Condition For overall power plant design, please refer to Attachment 8, “Site Ambient Condition” For consistency of performance comparison between different operating configuration, all performance figures are estimated at reference site condition as below: 1.3.2 ▪ Ambient Temperature 34.5 ℃ ▪ Relative Humidity 85 % ▪ Barometric Pressure 1,010 mbar ▪ Sea Water Temperature 26.5 ℃ ▪ Power Factor 0.85 lagging ▪ Boiler Fuel Performance Coal (Anthracite) Fuel and Ash Specification Please refer to Attachment 9, “Fuel and Ash Specification” 1.3.3 Water Qualities Please refer to Attachment 10, “Water Qualities” 1.3.4 Codes and Standards Please refer to Attachment 11, “Code and Standards” 1.4 Plant Overall System Configuration Mong Duong Thermal Power Plant is composed of two(2) Units And One(1) Unit includes Two(2) CFBC boilers and One(1) STG Therefore, configuration of all the main equipment can be classified into three categories, Plant common, Unit common and Boiler basis Unit common basis means that configuration and function of subsystem or equipment is organized for Each Unit Boiler basis means that configuration and function of subsystem or TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Rev.E equipment is organized for Each Boiler Plant common basis means that configuration and function of subsystem or equipment is organized for overall plant For detail system configuration, please refer to Attachment 12, “Redundancy List” Design information for major equipment are as follows: Equipment Design Parameter Value Remark Overall Plant Gross Output 540 MW X Under RO Load Emission Limit NOx : 560 mg/Nm3 SO2 : 280 mg/Nm3 Dust : 112 mg/Nm3 Boiler PA fan SA fan ID fan Coal Handling System Limestone Firing Type Circulating Fluidized Bed Combustion Type Steam Generation Type Natural Recirculation Type Drum Retention Time 12 sec Under BMCR Load Steam Output 916.26 ton/hr Under BMCR Load Head 2,141 mmH2O Flow Rate 367,404 kg/hr Under Rated Condition Head 1,165 mmH2O Flow Rate 249,233 kg/hr Head 800 mmH2O Flow Rate 769,629 kg/hr Conveying Capacity 1,000 ton/hr Crushing Capacity 1,000 ton/hr Storage Capacity 158,800 ton Conveying Capacity 250 ton/hr Under Rated Condition Under Rated Condition TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Equipment Design Parameter Value Handling System Storage Capacity 12,400 ton Ash Handling System Conveying Capacity Fly Ash : 250.4 ton/hr Bottom Ash :250.4 ton/hr Transfer Capacity Fly Ash : 155.2 ton/hr Rev.E Remark Under the worst coal firing condition Bottom Ash :345.6 ton/hr Disposal Capacity 500.8 ton/hr Fly Ash Storage 9,600 m3 Bottom Ash Storage 7,400 m3 Steam Turbine Type triple pressure, reheat, regeneration, three casing, tandem compound, four(4) flow and down exhaust type Generator Generator Terminal Output, MW 540 Generator rated voltage, kV 21 Generator cooling method, stator / rotor Water/Hydrogen Condenser Exciter Type and Gen full load field current PSCR (Potential-source controlled rectifier system), 4183A Design Vacuum 0.0711 bara Cooling Water Temperature 26.5 ℃ Temperature Rise 8.0 ℃ Condensate Extraction Pump Head 280 m Flow Rate 810 m3/hr Deaerator & Type Horizontal, Spray & Tray Under RO load Under RO load Under Rated Condition TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Equipment Design Parameter Value Remark Feedwater Tank Storage Capacity 173 m3 At N.W.L Retention Time N.W.L to L.L.W.L Under VWO Head 2,400 m Flow Rate 1,250 m3/hr Under Rated Condition Rated Power, MVA 660(220 x 3sets) Boiler Feedwater Pump Generator Transformer Station Transformer Unit Aux Transformer Rated Voltage, 21 / 525 Primary / Secondary Cooling Method ODAF Rated Power, MVA 75/100 Rated Voltage, 115/ X:10.5/ Y:10.5 Primary / Secondary Cooling Method ONAN/ONAF Rated Power, MVA 75/100 Rated Voltage, 21/ X:10.5/ Y:10.5 Primary / Secondary Cooling Method 1.4.1 Rev.E ONAN/ONAF Main Equipment or System as Unit Common Basis 1) One(1) X 100% of Steam Turbine and Generator with its auxiliaries Steam turbine is of triple pressure, reheat, three casing, tandem compound and down exhaust type and has 540 MW nominal gross output capacity Generator is of hydrogen/water cooled type Auxiliary systems such as lube oil system, hydraulic oil system, seal oil supply system, generator cooling system and so on will be provided for STG TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Rev.E For detail, please refer to “System Description of Steam Turbine & Generator (Doc.No : MD1-0-V-111-03-00001) 2) Main & Reheat Steam System This system is composed of main steam and reheat steam piping to connect between boiler and steam turbine with its auxiliaries For detail, please refer to “System Description –Main & Reheat Steam System (Doc.No : MD1-0-M-110-03-00001) 3) Feedwater Heating System This system is composed of Seven(7) stage feedwater heaters (13LCC11/12/20/30/40 AC001, 13LAD10/20/30AC001), one(1) X 100% of deaerator and feedwater tank (13LAA 10AC/BB001), extraction piping, cascade drain piping and vent piping with their auxiliaries For detail, please refer to “System Description –Feedwater Heating System (Doc.No : MD1-0-M-110-03-00003) 4) Condensate System This system is composed of two(2) X 50% of condensers (13MAG11/12AC001), two(2) set of condenser flash tanks (13LCC01/02BB001), three(3) X 50% of condensate extraction pumps (13LCB11/12/13AP001), one(1) X 100% of gland steam condenser (13 MAW10AC001) and piping to connect from condenser hot well to deaerator with its auxiliaries For detail, please refer to “System Description – Condensate System (Doc.No : MD1-0-M-120-03-00001) 5) Feedwater System This system is composed of three(3) X 50% of boiler feedwater booster pump (13LAC11/ 12/13AP001) and boiler feedwater pumps (13LAC21/22/13AP001) with fluid coupling device (13LAC21/22/23AP001MG01) and its piping to connected between feedwater tank and boiler economizer (11HAC10AC301) with its auxiliaries including feedwater control valves (11LAB33AA101) For detail, please refer to “System Description – Feedwater System (Doc.No : MD1-0-M-120-03-00002) 6) Auxiliary Steam System This system is composed of three(3) stage cascade auxiliary steam supply system The first stage system will receive source steam from auxiliary boiler (00UHB04AC004KC01) and main steam line and provide conditioned steam to next stage system and air preheater soot blower (00HCB05/06AT001/002KT01) The second stage system will receive steam cold reheat steam line as well as the first stage and provide conditioned steam to the third stage system and many superheated steam users The third stage system will provide to heating steam users For detail, please refer to “System Description – Auxiliary Steam System (Doc.No : MD1-0-M-110-03-00005) TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION 7) Rev.E Circulating Water System This system is composed of two(2) X 50% circulating water pumps (13PAC11/12AP001) and its piping, which is routed from intake channel with one(1) set of stop log (13PAA11/ 12AB001), coarse bar screen (13PAA11/12AT001), fine bar screen (13PAA11/12AT002) and travelling bend screen (13PAA11/12AT003) to seal pit via debris filter (13PAH10/20/ 30/40AT001), tube cleaning system and condenser For detail, please refer to “System Description – Circulating Water System (Doc.No : MD1-0-M-130-03-00001) 8) Closed Cooling Water System This system is composed of one(1) set of closed cooling water tank (13PGF10CL 501), two(2) X 100% of closed cooling water pumps (13PSC11/12AP001) and closed cooling water coolers (13PGD10/20AC001), various equipment coolers and its piping to connect them as closed loop This closed cooling water cooler will be cooled by sea water that two(2) X 100% of auxiliary cooling water pumps (13PCC10/20AP001) and auto filters (13PCH10/20AT001) provide from branch point of circulating water piping For detail, please refer to “System Description – Closed Cooling Water System (Doc.No : MD1-0-M-140-03-00001) 9) Electrical power and auxiliaries and unit transformer (main step-up and unit aux transformer) 10) Power Transformers The following transformers and accessories will be provided for power plant as shown in Key Single Line Diagram (Dwg No MD1-0-E-500-31-00002) • Generator Transformers • Unit Auxiliary Transformers • Station Transformers • 10 kV/LV Auxiliary Transformers The oil-filled transformers will be located outdoors and separated by fire-rated walls from adjacent structures and from each other The plant design and determination of the type of physical separation will be based on the requirements as stated in NFPA 850 11) Switchgears TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION Rev.E For the power supply of the steam turbine generator units and plant common auxiliaries, switchgears and MCC’s will be provided as required for the power plant as shown in Key Single Line Diagram (Dwg No MD1-0-E-500-31-00002) ▪ Medium Voltage Switchgears The 10kV MV switchgears will be of the type tested, metal clad, drawout type and rated for the maximum expected short circuit current based on short circuit calculation and continuous current capacity MV motors and LV switchgears will be fed from MV switchgears The switchgears will be provided with automatic high speed busbar transfer scheme and will be located indoor The degree of protection will be IP 41 Circuit breakers will be drawout type, electrically stored energy operated vacuum circuit breakers Breakers will be provided with local control in addition to the remote control in the control room The control voltage will be 220V DC Access space will be provided in back and in front of the switchgear ▪ Low Voltage Switchgears The 400V LV switchgears will be of type tested, metal enclosed, draw out, fully compartmentalized metal enclosed type using air break technology and rated for the maximum expected short circuit currents based on short circuit calculation and continuous current capacity The construction of the LV switchgears will be such that the internal separation by barriers complies with form 4b separation in accordance with the requirements of IEC 60439-1 The design will give the degree of protection equal or better than IP 41 Circuit breakers will be electrically operated draw out air circuit breakers with solid state trips for selective protection against overload, phase and ground faults Control voltage will be 220V DC ▪ Motor Control Centers The motor control centers will be designed metal enclosed type, dual or one face type, withdrawable and modular type, consisting of enclosed sections with main bus, insulated vertical bus, compartments and wireways 400V motors, distribution panels, etc will be fed from the motor control centers Starter circuits for motor feeder will be full voltage starting combination type, consisting of molded case circuit breakers, magnetic contactors, thermal overload ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant ASTM D1556 (5) (6) : Soil consolidation testing method by sand pouring method ACI-American Concrete Institute ACI 318 : Reinforcement concrete design standard for house ACI 305R : Concrete pouring under hot weather ACI 301 : Specification for building concrete structure ACI 302 : Guidelines on concrete measurement, transportation and pouring ACI 347 : Guidelines on concrete scaffold work ACI 543 : Reinforcement concrete pile design, erection and construction JlS-Japanese Industry Standard Standards in relation to materials and structural calculation (7) AWS-American Welding Society AWS D1.1: Welding standard for structural steel (8) AASHTO- American Association of State Highway and Transportation Officials Standards and design manuals on bridges and roads 1.5 Mechanical Design Codes And Standards This part shall introduce a number of codes and standards/standard systems which are used for designing, manufacturing, erecting, testing and commissioning the plant equipments Codes and standards/standard systems or equivalent shall be applied for design, manufacture, construction, erection, test and commission equipments which include but not be limited to the following: (1) ASME (American Society of Mechanical Engineer) ASME 1998 Part VIII clause : Boiler and pressure part standard ASME B&PV, part VIII clause : Standard on boiler and pressure pipe Pressure facility design principals ASME part II item D : Boiler and pressure part Standard on material ASME PTC-4 : Boiler performance testing and calculation standard ASME PTC-6 : Steam turbine-generator performance testing and calculation standard ASME B 16.5 : Steel pipe flanges and flanged fittings ASME VIII clause : Standard on welding ASMEB 16.9 : Steel butt-welding fittings ASME B 16.11 : Forged steel, fittings, socket welding and threaded ASMEB 16.28 : Wrought steel butt-welding short radius elbows ASMEB 16.10 : Forged steel pipe Welding and non-welding ASME B 16.19 : Stainless steel pipe / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant ASME B 31.1 (2) (3) : Standard on power pipeline ASTM (American Association for Testing and Material) ASTM A 53 : Standard specification for pipe, steel, black and hot-dipped, zinccoated, welded and seamless ASTM A 126 : Standard specification for gray iron castings for valve, flange and pipe fitting ASTM A 126-95 : Valve, flange and pipe fittings made of casted gray iron ASTM A 351/A351-3: Standard specification for castings, austenitic for pressure containing parts ASTM A 36 : Pipe materials Plate steel for general structure ASTM A 795 : Standard specification for black and hot-dipped zinc-coated, welded and seamless steel pipe for fire protection use ASTM A 105 : Forged steel, carbon alloy steel for pipe fittings ASTM A 106 : Seamless carbon alloy steel pipe used in high temperature area ASTM A 182 : Standard specification for forged or rolled alloy and stainless steel pipe flange, forged fittings, and valve and part used in high temperature areas ASTM A 234 : Pipe fittings for welded carbon and alloy pipe steel used in medium and high temperature areas ASTM A 312 : Standard specification for seamless, welded austenitic stainless steel pipe ASTM A 403 : Standard specification for wrought austenitic stainless steel piping fittings ANSI-American National Standards Institute ASME- TDP-1-2006 - "Recommended Practices for the Prevention of Water Damage to Steam Turbines used for Power Generation" ANSI B 16.9 : Pressure part design and installation Pipe fittings ANSI 125/125 : Standards on fire fighting facilities Electric pump blade ANSI standards on internal materials and coatings ANSI standards on pressure parts Power pipeline (4) AISI-American Iron and Steel Institute (5) AS - Australia Standard (6) AWS-American Welding Society AWS B2.1 : Standard on welding procedure and welding quality requirement AWS D1.1 : Steel structure welding standard AWS QC1 : Standard for certification of welding inspectors / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant (7) BS-British Standard BS 5316 : Standard for barrel, horizontal and centrifugal pump type BS 1840/1960 : Lighting column BS 4999 : General requirement on rotating electrical machines BS 5000 : Rotating electrical machines for particular types or for particular applications BS EN 593:2004 : Industrial valve Metal butterfly valve BS 1387/1985 : Standard on pressure pipe design and installation Standard on pressure valve design and installation BS 5045 Transportable gas containers Part - Specification for seamless steel gas containers (8) (9) DIN- Deutsche Industrie Norm DIN 22101 : Belt conveyor for loose bulk materials DIN 15070 : Basis for pulley calculation DIN 8570 : General tolerance for welded structures DIN 18800 : Structural steel DIN 1055 : Calculation basics for structural steel DIN EN 10025 : Hot rolled products from non-alloy structural steel DIN EN 440 : Wire electrodes and deposits for gas shielded arc welding of nonalloy and fire grain steel DIN EN 449 : Specifications for dedicated liquefied petroleum gas applications Domestic flueless for space heaters DIN EN 729 : Requirements on welding quality DIN EN 719 : Combined welding DIN 16086 : Pressure relief equipment DIN 19205 : Fm flowmeter DIN EN 1092-1/02 : Relief valve DIN 17200 C35-2 Material for rotor body : ISO-International Standard Organization A number of standards which are used for design, manufacture, installation and testing of systems/facilities in power plant as follows: ISO 1217 : Air compressor volume flow ISO 7183 : Compressed air dryers Specifications and testing ISO 7005-1 : Metal flange -Part 1: Steel flanges of B34, B56 steel ISO 5048 : Continuous mechanical handling equipment - Belt conveyors with / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant carrying idlers (11) ISO 5049/1 : Mobile equipment for continuous handling of bulk material Rules for the design of steel structures ISO 10247 : Conveyor — Layer specifications - Classification ISO-9856 : Conveyor - Elastic module determination ISO 3684 : Conveyor - Minimum diameter determination of pulley ISO 5293 : Conveyor - The formula for calculating conveyor belt transition distance on three idler pulleys ISO 283 : Conveyor - Elongation and tensile strength - Specification and testing method ISO 5285 : Conveyor - Guideline for storage and handling ISO 4190 : Conveyor heat stability - Part 1: Testing method ISO 4195 : Conveyor heat stability- Part 2: Technical specifications ISO 433 : Conveyor manufacture ISO 252 : Adhesive strength between constitutive elements – Testing method and requirements ISO 282 : Conveyor- Sampling ISO 505 : Conveyor belts - Method for the determination of the tear propagation resistance of textile conveyor belt ISO 703 : Conveyor belts - Troughability - Characteristics of transverse fle xib i li ty and test method ISO 25 : Conveyor check - Length and width JIS- Japanese Industrial Standard JIS 8301 : Specifies test methods on site for mixed-flow and axial flow centrifugal pump between flange sections at suction and discharge JIS 8322 : Standard for barrel, horizontal and centrifugal pump JIS 8313 : Standard for end-suction, horizontal and centrifugal pump / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant (12) NFPA- National Fire Protection Association NFPA 13 : Standard for the installation of sprinkler systems NFPA 14 : Standard for the installation of standpipe and hose system NFPA : Standard for water spray fixed system for fire protection NFPA 16 : Standard for the installation of foam water sprinkler and foam water spray system NFPA 20 : Standard for the installation of fire fighting pumphouse NFPA 22 : Fire fighting water tank NFPA 24 : Standard for the installation of private fire services mains and their appurtenance NFPA 70 : Standard for fire alarm system NFPA 72 : National fire alarm standard NFPA 1961 : Standard on fire hose NFPA 1963 : Standard for fire hose connection NFPA 1964 : Standard for spray nozzles NFPA 1965 : Standard on fire hose appliances NFPA 80 : Standard for fire doors and other opening protectives NFPA 325 : Standards for designing fuel oil storage areas NFPA - 8502 (1995) Standard for the prevention of furnace explosion NFPA - S503 (1992) Standard on explosion protection for pulverized coal process (13) NFPA S502 : Standard for the prevention of implosion in multiple burner boilers (1995) NFPA 8503 : Standard for pulverized coal processes (1992) GOST- Russian National Standards VNTP-S1 : Codes and standards for designing thermal power plants (Russia) GOST 25364-97 : Codes and standards for turbine-generator sets – Steam turbine GOST 12.1.003-83 : General requirements on noise safety GOST 15150-69 : Codes and standards for machines instrument and other industrial products GOST 24.125.60-89: Codes and standards for standard elements and erection works for hot water pipeline and steam duct of power plants GOST 5246-80 : Codes and standards on manual welding, seam, welding rod diameter GOST 8713-79 : Flux welding Welded joints Main types design elements and dimensions GOST 19281-89 : Rolled steel with increased strength General specifications / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant GOST 8240-97 : Hot-rolled steel pipe Classifications GOST 380-94 : Popular carbon steel Classifications GOST 9466-75 : Covered metal electrodes for manual arc welding of steels and deposition Classifications and general specifications GOST 9467-75 : Covered metal electrodes for manual arc welding of structural and heat-resisting steel GOST 14771-76 : Gas-shielded arc welding Welded joint Main types, design elements and dimensions (13) OSHA-Occupational Safety and Health Administration (14) AMCA-Air Movement and Control Association (15) NBFU-National Board of Fire Underwriters (16) PFI-Pipe Fabrication Institute (17) IGCI-Industrial Gas Cleaning Institute (USA) (18) AGMA-American Gear Manufacturers Association (19) ABMA-American Boiler Manufacturers Association (20) Hl-Hydraulic Institute of American (21) API-American Petroleum Institute (22) API 650 : Requirements on material, design, erection, testing and inspection for vertical cylinder API 619 : Standard on air compressor Equipment design bases Relevant Vietnamese standard List of applicable Vietnamese standards shall be as follows: TCVN 6153:1996 : Pressure vessels - Safely technical specification for structural design and manufacture TCVN 6154:1996 : Pressure vessels - Safely technical specification design and manufacture - Test method for structural TCVN 6154:1996 and TCVN 6156:1996: Pipe welding TCVN 2289-1978 : Manufacturing process General requirement on safety TCVN 2289-1978 : Manufacturing equipment General requirement on safety TCVN 6153-1995 : Pressure vessels - Safely technical specification for structural design and manufacture TCVN 6154-1996 : Pressure vessels - Safely technical specification for structural design and manufacture - Test method TCVN 6155-1996 : Pressure vessels - Safely technical specification for installation, usage and repair / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant TCVN 6156-1996 : Pressure vessels - Safely technical specification for installation, usage and repair — Test method 1.6 Codes and standards on electrical design (1) IEC - International electrotechnical Commission (2) (3) IEC 60076 : Power Transformers IEC 60076-11 : Power Transformers – Part 11: Dry-type power transformers IEC 62271-200 : AC metal-enclosed switchgear and controlgear for rated voltages above kV and up to and including 52 kV IEC 62271-105 : Alternating current switch-fuse combinations IEC 62271-107 : Alternating current fused circuit-switchers for rated voltages above kV up to and including 52 kV IEC 60044-1 : Instrument transformers – Part 1: Current Transformers IEC 60044-2 : Instrument transformers – Part 2: Inductive Voltage Transformers IEC 60502 : Power cables with extruded insulation and their accessories for rated voltages from 1KV upto 30KV IEC 60614 : Specifications for conduits for electrical installations IEC 60228 : Conductors of insulated cables IEC 60947 : Low-voltage switchgear and controlgear IEC 60034 : Rotating electrical machines IEC 62305 : Protection against lightning IEC 60896 : Stationary lead-acid batteries IEC 62040 : Uninterruptible power systems IEC 60255 : Electrical relays IEEE - Institute of Electrical and Electronics Engineers IEEE 80 : Guide for safety in a.c substation grounding IEEE 81 : Guide for measuring earth resitivity, ground impedance and earth surface potentials of a grounding system IEEE C37.013-1993 : Standards for AC High-Voltage Generator Circuit Breakers Rated on a Symmetrical Current Basis IEEE C37.102-1995 : Guide for AC Generator Protection -Description IEEE C37.96-1995 : Guide for a.c motor protection TCVN- Vietnamese standard 20 TCXD 46-84 : Lightning system protection for civil works Design and construction standard 10 / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant 11 TCN - 18 -2006 : General 11 TCN -19 -2006 : Conductor system (cables, transmission line) 11 TCN - 20- 2006 : Distribution facilities and substation 11 TCN - 21 – 2006 : Protection and automation TCXDVN 46 – 2007 : Protection of structures against lightning - Guide for design, inspection and maintenance Regulation No.37/2006/QD-BCN: Regulation on connection to the National Grid Network Regulation No.02/2007/QD-BCN: Energy meter specification for power plants (3) BS - British Standard BS 4999 : General specifications for motors BS 5000 : Technical specifications of particular electrical motors or of particular applications BS EN50020 : Electrical apparatus for potentially explosive atmospheres 1.7 Designed code and standards for C&I (1) IEC - International Electrotechnical Commission (2) IEC 529 : Classification for degree of protection for equipment enclosures IEC 34 : General specifications for rotating electrical machines IEC 79 : Electrical apparatus in potentially explosive atmospheres IEC 1207 : Performance of gas analyser IEC 584 : Thermocouple codes IEC 688 : Measuring transducers ISO-International Standard Organization ISO 4006 (3) : Measurement of fluid flow in closed conduits ANSI-American National Standard Institute ANSI/ISA 5.1 : Graphic symbols and guidelines for distributed control system (DCS) (R1992) (1984) ANSI C37.90a : Guidelines for surge withstand capability tests ANSI C37.1 : Noise and interference of EMI ANSI S5.3 : Graphic symbols for distributed control system (DCS) ANSI MC 96.1 : Thermocouples and thermoresistances 11 / 12 ANNEX – CODES AND STANDARDS Mong Duong Thermal Power Plant (4) (5) IEEE - Institute of Electrical and Electronics Engineers IEEE Std 91-1984 : IEEE standard graphic symbols for logic functions (1994) IEEE Std 91a-1991 : Supplement for IEEE standard graphic symbols for logic functions (1994) IEEE 802.4 : Token bus networks IEEE 802,3 : CSMA/CD bus networks ASME (American Society of Mechanical Engineers) ASME: Steam parameter tables (revision June, 1993) (6) SAMA (Scientific Apparatus Markers Association) SAMA RC 22.11: (MCAA) Logic diagram of DCS (7) ISA (Instrumentation, System and Automation Society) ISA-TR77.60.04-1996: MMI interface - CRT displays (8) ITS (International Temperature Scale) ITS-90: Thermodynamic temperature scale (ITS-90) 1.8 Communications (1) ITU (International Telecommunication Union) ITU-T G.652 : Specifications of cable fiber ITU-T: G707; G708; G709; G957; G758; G691: STM-1 fiber optic network transmission standard ITU-T Q.811; Q.812; G.774 and G.784: Synchronous management ITU-T G.841; G842: Protection mechanism ITU-T G.703: PCM-30 facilities ITU-T G.703.1; G.703.6: Communication machine for transmission line protection relay ITU-T G703; G707: Network interfaces (2) ETSI - European Telecommunications Standards Institute ETS 300 019 (3) : TCN - Industry standard TCN 68-149: 1995 : (4) Environmental conditions Environmental conditions IEEE - Institute of Electrical and Electronics Engineers IEEE-802.3 : Ethernet bus network Other codes and standards In addition, other codes and standards could be acceptable based on principals mentioned in clause 1.1 of Annex 12 / 12 TWO(2) X 500 MW MONG DUONG THERMAL POWER PLANT PLANT OVERALL DESCRIPTION ATTACHMENT Redundancy List Rev.E EXHIBIT 7 ‐ EQUIPMENT REDUNDANCY LIST Mong Duong 1 Thermal Power Plant No Description Unit BOILER AND AUXILIARIES CFB Boiler Boiler and Ancillary of One Unit Primary Air Fan Secondary Air Fan Induced Draft Fan High Pressure blower Unit 1 or 2 Operation Standby Common Total 2 4 0 4 4 Regenerative Air Preheater 2 Steam Coil Air heater 4 Fuel Oil Unloading System ‐ Mobile heater ‐ Fuel oil unloading pump ‐ Duplex strainer ‐ Fuel oil heater (unloading) ‐ Air ‐ Oil Separator ‐ Fuel oil flow meter ‐ Steam flow meter 1 Heavy Fuel Oil Supply System ‐ Heavy Fuel Oil Supply Pump ‐ Level 1 fuel oil heater ‐ Level 2 fuel oil heater ‐ Simplex suction strainer ‐ Simplex suction strainer ‐ Fuel oil cooler 1 1 1 1 1 2 2 2 ‐ Fuel oil flow meter for inlet oil line and outlet oil line of the boilers Ignitor Fuel System ‐ Diesel oil tank ‐ Diesel oil unloading pump ‐ Simplex strainer (unloading) ‐ DO supply pump ‐ Simplex suction strainer 1 1 2 Limestone transfer blower Fine limestone silo Limestone feeder 2 2 Coal Silo 10 10 Coal Feeder 16 16 2 1 set Auxiliary Boiler set Chemical Injection Systems Phosphate Dosing System Sodium Phosphate Tank Dosing Pump Remarks (2+1) per boiler 1x100% per boiler, 2/unit (1 for primary air and 1 for secondary air)/Blr 0 0 1 1 for heating FO in barge one F.O. tank per unit 1 Exhaust Gas Stack Total 2x50%per boiler, 4/unit 2x50%per boiler, 4/unit 2x50%per boiler, 4/unit 1 1 1 Fuel oil Tank ESP Operation Standby 1 3x50% per boiler 1set per boiler, 2/unit 2x100%per boiler, 4/unit 6 Front wall feeder + 2 Rear wall feeder for full load two gas path two stack in one chimney 1 for start up purposes 1 1 complete with agitator Diluted Ammonia Storage Tank 1 Complete with agitator Ammonia Dissolving Tank Dosing Pump 1 1 Hydrazine Dosing System Oxygen Scavenger dosing Tank Dosing Pump 1 1 set 1 unit unit unit 1 1 2 Ammonia Dosing System TURBINE GENERATOR AND AUXILIARIES Steam Turbine‐Generator Steam Turbine and Ancillary ‐ AC lube oil pump ‐ DC lube oil pump ‐ lube oil cooler 1 of 5 complete with agitator 2 AC motor driven No Description ‐ Dirty oil transfer pump Unit unit Condensate System ‐ Condenser ‐ Condensate Pump ‐ Vacuum Pump Unit 1 or 2 Operation Standby Common Total 1 1 1 CCW System ‐ CCW Pump ‐ CCW Cooler ‐ ACW Pump unit unit unit 1 1 1 2 Feedwater System ‐ Boiler Feed Pump ‐ Boiler Feed Booster Pump unit unit 2 1 3 Lot Lot Lot ASH HANDLING SYSTEM Fly ash handling Electrostatic precipitator hoppers Economizer hoppers Airpreheater hoppers Silo Vent Filter & Fan Lot Lot Lot Operation Standby Total Remarks Fly ash vacuum pump packages Buffer Hopper Buffer Hopper Aeration Blowers Air Lock Vessel for Buffer Hopper Fly Ash Conveying Air Blowers Drain Sump Pump 4 8 16 One (1) set per Unit Common for two (2) boilers Three (3) x 50 % per Boiler (Six(6) sets per Unit) Four (4) sets per Unit Two (2) sets per Unit Eight(8) sets per Unit Six (6) sets per Unit Two (2) sets per Unit Bottom Ash handling Fludizes Bed ash cooler Bottom ash silo Clinker grinder Dry Flight Conveyors(below boiler) Dry Flight Conveyors(from boiler to silo) for Boiler A Bucket Elevator for Boiler A Dry Flight Conveyors(from boiler to silo) for Boiler B Silo Vent Filter & Fan BA Silo Aeration Blowers BA Rebedding Blower Package 1 1 1 2 Eight(8) sets per Unit One(1) set per Boiler Two (2) x 100% per Each Boiler Four (4) sets per Each Boiler Two (2) sets per Boiler A Two (2) sets per Boiler A Four (4) sets per Boiler B One (1) set per Each Boiler Two (2) sets per Each Boiler One (1) set per Each Boiler Fly ash silo Ash slurry Ash transport water sump HP pump Fly ash mixing tank Bottom ash mixing tank Jet pump Ash collection basin Centrifugal LCSD pump (for Low Concentration Ash Slurry Disposal System) Seal Water Pump(for Ash Slurry Pump) acid tank (Storing sulphuric acid tank) acid pump (Sulphuric acid metering pump) clarified water collection pit return water pump (Clarified water lift pump) 1 1 1 1 0 COAL AND LIMESTONE HANDLING PLANT Coal Handling Coal receiving tower Belt conveyor Scale Inventory Coal transfer tower Stacker Scarper Reclaimer Coal crushing tower Coal Tripper Coal Sampling system (As‐fired) ` One (1) set per Each Silo One (1) set per Each Silo One (1) set per Each Silo 1 1 2 1 1 1 1 2 of 5 1 1 2 1 1 Limestone Handling Grab bucket type unloader Receiving hopper Belt scale (inventory) Transfer tower Belt conveyor Limestone storage Limestone loader belt feeder metal detector magnetic separator bucket elevator 1 2 1 1 1 18 4 2 2 1 1 1 1 Three (3) x 50% for Plant No Description Unit Limestone Grinding system Transportation air blower Limestone storage silo Dust collector PLANT ELECTRICAL EQUIPMENT Transformer ‐ Generator Transformer unit ‐ Unit Transformer unit ‐ Station Transformer unit Unit 1 or 2 Operation Standby 1 1 Common Total 1 lot unit unit unit 1 0 SWITCHYARD EQUIPMENT 500kV Swichyard Bay 110kV Swichyard Bay INSTRUMENTATION AND CONTROL Microprocessors, communication links, data high ways, I/O cards, power supplies, transmitters, switches etc as defined under specification section 11 1 lot 1 unit unit 1 2 2 2 1 set Remarks Total UPS System ‐ AC supply ‐ DC supply ‐ Battery Emergency Diesel Generator unit Operation Standby 1 1 2 2 1 1 2 1 1 1 1 0 1 1 1 0 1 1 1 2 2 2 2 2 2 2 Demineralized Treatment Plant Activated carbon filter Degasifier Degasifier fans Cation exchangers Anion exchangers Mixed Bed exchangers Degasified pump Demin plant feed water pumps Demin water transfer pumps Demineralized water storage tanks Instrument air receiver Service air receiver Regeneration pump 2 2 2 2 1 0 0 0 1 0 2 2 2 3 2 1 Regeneration System Acid storage tank Acid unloading & transfer pumps Caustic storage tank Caustic unloading & transfer pumps Acid measuring tank for C.E & M.B 2 1 1 2 2 WATER TREATMENT PLANT Preliminary Water Treatment Plant Automatic gravity filter Clarifiers Gravity Filters Filtered water pumps Mudded pumps Backwash blowers Filter backwash water pumps Filtered water transfer pumps Polymer dosing pumps Coagulant dosing pumps Raw water tanks Filtered water storage tanks Service water pump Polymer solution tanks Coagulant solution tanks Filtered water Pond Raw water pumps Caustic solution tanks Caustic dosing pumps NaOCl solution tank NaOCl dosing pumps Acid Injection pumps for Cation and mixed bed exchangers Caustic measuring tank for C.E & M.B 1 Caustic dosing Injection pumps for anion and mixed bed exchangers Salt dissolving tank Salt solution injection pumps 1 1 Potable Water Treatment System NaOCl dosing pumps Potable water storage tank NaOCl dosing tank 1 1 0 1 3 of 5 3x50% 3 x 50% 3 x 50% No Description Unit Unit 1 or 2 Operation Standby Common Total Operation Standby 1 1 WASTE WATER TREATMENT PLANT Waste Water Treatment System Wastewater storage pond Mixing pond (Coagulantion & Flocuulation tank ) Treated waste water Pond Sludge thickener Clarifier Post neutralization Pond pH adjust pond Treated waste water pumps Backwash wastewater pumps Pressure filters Activated carbon filter Sludge pumps Raw waste water pumps (Waste water pumps) Mixing blowers Clarified waste water Pond Clarified wastewater pumps 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 2 2 2 Chemical System Acid unloading & transfer pumps Acid transfer pumps Acid measuring tank Acid dilution tank Acid dosing pump Caustic storage tanks Caustic unloading & transfer pumps Caustic measuring tank Caustic dilution tank Caustic dosing pumps Polymer solution tanks Polymer dosing pumps Coagulant solution tanks Coagulant dosing pumps 1 1 1 1 1 1 1 0 1 0 1 1 2 1 2 1 2 2 Oily Waste Treatment System API Oily wastewater collecting basin Recovered oil pond CPI Oil/Water separator Oily wastewater transfer pump Oil sludge pump 1 1 0 1 1 unit unit unit unit unit unit unit unit 5 12 5 1 0 12 0 1 5 24 5 2 unit unit unit unit 1 1 0 1 1 2 1 1 0 1 1 1 1 10 COOLING WATER SYSTEM CW Pump Coarse Bar Screen Fine Bar Screen Traveling Band Screen Gaseous Chlorination Plant Evaporator Chlorinator Chlorine Drums Vacuum Regulators Ejectors Booster Pumps Scale Self Cleaning Filters Chlorine Gas Neutralization System Scrubber Caustic Soda Storage Tank Circulating Pumps Blowers unit unit unit unit 2 2 0 0 11 HYDROGEN GENERATION PLANT Hydrogen Generating Cell (1 train) IP Receiver HP Receiver (1set ‐has cylinders) 12 COMPRESSED AIR (Instrument and Service Air) Compressor Receiver Air dryer unit unit train 13 FIRE WATER SYSTEM Fire Water Tank Motor Driven Pump Diesel Engine Driven Pump Jockey Pump 2 2 1 14 NITROGEN (N2) SUPPLY SYSTEM 4 of 5 Remarks Total Activated carbon filter Potable water pumps Filtered water transfer pumps for potable water 3 x 50% 2 x 100% 1 x 100% No Description ‐ Nitrogen Standard Vessel Unit set Unit 1 or 2 Operation Standby 5 of 5 Common Total Operation Standby Total Remarks ... POWER PLANT PLANT OVERALL DESCRIPTION Rev.E Content 1.0 INTRODUCTION 1.1 GENERAL 1.2 PROJECT DESCRIPTION 1.3 DESIGN CONDITION AND CODE 1.4 PLANT OVERALL. .. POWER PLANT PLANT OVERALL DESCRIPTION Rev.E equipment is organized for Each Boiler Plant common basis means that configuration and function of subsystem or equipment is organized for overall plant. .. BASIC CONCEPT OF OVERALL PLANT OPERATION 27 3.2 PLANT OPERATION MODE 27 4.0 PLANT START-UP AND SHUT-DOWN PROCEDURE 32 4.1 PLANT START-UP 32 4.2 PLANT SHUT-DOWN