印度塔尔万迪4×660MW超临界燃煤电站项目锅炉说明书(中英文版).doc

Proper Instruction of Talwandi 4660MW Supercritical Boiler山东电力基本建设总公司印度塔尔万迪4660MW超临界燃煤电站项目SEPCO ELECTRIC POWER CONSTRUCTION CORP.,PRC TALWANDI 4660MW SUPERCRITICAL THERMAL POWER PLANTHG -2140/25.4-YM16 BOILER锅炉说明书Boiler Instruction Volume Boiler Proper and StructureNo. : F0310BT001C411Project control No. : TALW 1 HBCLD HA GN 0BT 0001 A编制：EDIT校对：CHECK审核：REVIEW审定：VERIFY中华人民共和国哈尔滨锅炉厂有限责任公司THE PEOPLES REPUBLIC OF CHINAHARBIN BOILER COMPANY LIMITED- 109 -目 录Content1锅炉设计容量和参数Boiler design capacity and parameter12设计条件Design basis22.1 工程主要原始资料Main original materials22.2 煤种Coal32.3 点火及助燃用油Fuel oil for ignition and firing supporting42.4 锅炉给水及蒸汽品质要求Requirement of boiler feedwater and steam quality52.5 服务设施Service device62.6 锅炉运行条件及模式Boiler operation condition and mode73锅炉特点Boiler feature73.1 技术特点Technical feature73.2 结构特点Structural features84. 锅炉性能计算参数及结构数据Boiler performance calculation parameter and structure data134.1 锅炉性能计算数据表Boiler performance calculation data sheet134.2 锅炉主要界限尺寸Boiler main boundary size155系统说明System introduction155.1 烟风系统Air-gas system155.2 汽水系统Steam-water system165.3 汽温控制Steam temperature control205.4 启动系统Start-up system216 锅炉整体布置Boiler general arrangement296.1 炉膛及水冷壁Furnace and water wall306.2 启动分离器和贮水箱Start-up separator and storage tank326.3 过热器、再热器和减温器SH, RH and desuperheater326.4 省煤器Economizer356.5 燃烧设备Combustion Equipment366.6 空气预热器Air preheater386.7 阀门和管道Valve and piping396.8 炉顶密封和包覆框架Boiler roof sealing and enclosure frame396.9 热膨胀系统Thermal expansion system426.10 钢构架和平台楼梯Boiler steel structure and platform436.11 热结构Hot structure487 辅助设备说明Auxiliary equipment instruction577.1 安全阀Safety valve577.2 吹灰器Soot blower587.3 烟温探针Gas temperature probe607.4 锅炉疏水和放气（汽）Drainage and air (steam) vent618 水动力特性Hydrodynamic characteristic63图0101：锅炉总体布置图-纵剖视Drawing 01-01: General Arrangement of Boiler Side View65图0102：锅炉总体布置图-前视图Drawing 01-02: General Arrangement of Boiler - Front View66图0103：锅炉总图布置图-顶视图Drawing 01-03: General Arrangement of Boiler Planform View67图0104：锅炉总图布置图-水平视图Drawing 01-04: General Arrangement of Boiler Plan View68图0105：锅炉汽水流程图（水冷壁系统）Drawing 01-05: Steam and Water Flow Diagram (Water Wall System)69图0106：锅炉汽水流程图（过热器系统）Drawing 01-06: Steam and Water Flow Diagram (SH System)70图0107：锅炉汽水流程图（启动系统）Drawing 01-07: Steam and Water Flow Diagram (Strat-up System)71图0108：锅炉汽水流程图（再热器系统）Drawing 01-08: Steam and Water Flow Diagram (RH System)72图0109：锅炉热膨胀系统图Drawing 01-09: Thermal Expansion System of Boiler73图0110：燃烧器立面布置总图Drawing 01-10: Vertical General Arrangement of Burner74图0111：主燃烧器水平布置总图Drawing 01-11: Horizontal General Arrangement of Main Burner75图0112：SOFA燃烧器水平布置总图Drawing 01-12: Horizontal General Arrangement of SOFA Burner75图0113：EL17000平面布置图Drawing 01-13: EL17000 Plan Arrangement76图0114：B0，B46立面布置图Drawing 01-14: B0, B46 Vertical Arrangement77图0115：BH立面图Drawing 01-15: BH Vertical Arrangement78图0116：锅炉基础负荷图Drawing 01-16: Boiler Steel Structure Load at Ground Level79图0117：冷态启动曲线Drawing 01-17: Cold Start Up Curve of Boiler80图0118：温态启动曲线Drawing 01-18: Warm Start Up Curve of Boiler81图0119：热态启动曲线Drawing 01-19: Hot Start Up Curve of Boiler82图0120：极热态启动曲线Drawing 01-20: Very Hot Start Up Curve of Boiler83哈尔滨锅炉厂责任有限公司（简称哈锅）为印度Talwandi电厂设计制造的660MW锅炉采用了哈锅自主开发的超临界锅炉技术。该锅炉为变压运行、一次中间再热、单炉膛、平衡通风、固态排渣、全钢架悬吊结构、露天布置的型超临界锅炉，采用不带再循环泵的大气扩容式启动系统，采用新型切圆燃烧方式、低NOx燃烧器，24只燃烧器分6层布置。采用直吹式制粉系统，配上海重型机器厂有限公司制造的6台BBD4760双进双出磨煤机。锅炉在BMCR工况下，5运1备。（总体布置图见图01-0104）The 660MW boiler which designed and manufactured by Harbin Boiler Company Ltd (HBC) for India Talwandi power plant adopts the supercritical boiler technology developed by HBC itself. The boiler is type outdoor arrangement supercritical boiler with variable pressure operation, single intermediate reheat, single furnace, balanced draft, dry ash removal and total steel frame suspending structure. It has atmospheric flash type startup system without recirculating pump and adopts tangential firing, low NOx combustion burners, 24 burners are arranged in 6 layers. The boiler is equipped with 6 BBD4760 double-ended ball mills direct-fired system of Shanghai Heavy Machinery Co.Ltd, under BMCR condition, 5 mills are in operation 1 mill is standby. (the general arrangement drawing is showed in 01-0104)锅炉以最大连续出力工况（BMCR）为设计参数。在任何5台磨煤机运行时，锅炉能长期带BMCR负荷运行。Boiler takes maximum continuous rating (BMCR) as design parameter. When any 5 mills are operating the boiler can operate with BMCR load for long time. 1、锅炉设计容量和参数 Boiler design capacity and parameter单位UnitBMCR工况BMCR LoadTMCR工况TMCR Load过热蒸汽：Superheated steam过热蒸汽流量Superheated steam flowt/h21402003.1过热器出口蒸汽压力SH outlet steam pressureMPa.g25.425.24过热器出口蒸汽温度SH outlet steam temperature571571再热蒸汽：Reheat steam再热蒸汽流量Reheat steam flowt/h1732.991630.07再热蒸汽进口压力Reheat steam inlet pressureMPa.g4.8154.529再热蒸汽出口压力Reheat steam outlet pressureMPa.g4.6054.332再热蒸汽进口温度Reheat steam inlet temperature330.9324.3再热蒸汽出口温度Reheat steam outlet temperature569569主给水压力Main feedwater pressureMPa.g29.0028.46给水温度Feedwater temperature293.4289注：1.BMCR工况表示锅炉最大连续出力工况，对应于汽轮机在阀门全开时（VWO工况）的进汽量参数；2.TRL工况对应于汽轮机TRL负荷参数；3.压力单位中“g”表示表压。“a”表示绝对压(以后均同)。Note: 1. BMCR condition is boiler maximum continuous rating, corresponding to the inlet steam parameter when turbine valves are totally open (VWO).2. TRL condition is corresponding to the load parameter of turbine TRL.3. “g” in pressure unit is gauge pressure. “a” is absolute pressure (be the same hereinafter).2、设计条件 Design basis2.1 工程主要原始资料 Main original materials2.1.1环境条件 Environmental condition本工程建设场地所处区域具有高温高湿气候特征。The construction site of this project is in the area with climate features of high temperature and high humidity.The Site address: Village Banawala,District Mansa, IndiaThe Site elevation: upper MSL 208.5m2.1.2气象特征Climate featurei. TemperatureMean daily maximum : 41.2 (June)Mean daily minimum : 4.5(January)Mean yearly maximum : 31.8 Extreme maximum : 48.2 Extreme minimum : - 3.9 ii. Wind SpeedMean minimum : 2.1 km/hrMean maximum : 6.2 km/hrWind direction : North west to SoutheastWind loading will be in accordance with Indian Standard Code IS875 for a basic wind speed of 47m/sec. up to a height of 10 metres above mean ground level. Appropriate probability factor, terrain, height and structure size factor, and topography factor shall be considered as per IS-875/UBC-1997iii. RainfallMaximum annual : 693 mmiv. Relative HumidityMaximum : 76%Minimum : 33%Seismic Zone : Zone III as per seismic zone classification IS1893/latest version2.2 煤种 Coal 电厂以印度煤为锅炉主要燃料。锅炉在燃烧设计煤质和校核煤种的条件下运行时，均能实现保证的性能，如出力等。The power plant takes India coal as the boiler main fuel. The boiler can achieve guarantee performance when firing design coal and check coal, such as output.燃煤煤质特性 Coal analysis1Proximate Analysis (% by weight)Sl. No.DescriptionDesign QualityWorst Quality1GCV (kcal/kg)330030002Ash41.6453Volatile matter22214Fixed carbon24.5225Moisture11.9156Total100.0100.07Grindability (HGl)45422Ultimate Analysis of Coal received basisDescriptionDesign QualityWorst Quality1Carbon %36.531.92Hydrogen %2.01.83Oxygen %6.34.84Nitrogen %1.20.95Sulfur %0.40.66Ash %41.6457Moisture %12158GCV3300 kCal/kg3000 kCal/kgNOTE: During rainy season total moisture is 19%. (Inherent + Surface moisture)ASH ANALYSIS1Deformation Deg.C129013402Hemisphere Deg.C135014003Flow Deg.C150014004Moisture %0.145Un burnt Carbon %0.366SiO2 %54.959.67Al2O3 %25.430.758Fe2O3 %9.36.59TiO2 %1.31.7510P2O5 %0.10.4711K2O %0.30.2712CaO %3.10.2513MgO %1.80.0814Na2O %0.30.1515SO3 %2.30.0316Mn3O4 Undetermined%0.70.152.3 点火及助燃用油 Fuel oil for ignition and firing supportingA) HEAVY FUEL OIL (HFO)Sl. No.Characteristics(IS 1953, Grade HV)1Total Sulphur content4.5% (Max)2Flash Point (Min.)66 Deg C3Water content by Volume (Max.)1.0%4Sediment by weight (Max.)0.25%5Asphaltene content by weight (Max.)2.5%6Kinematic Viscosity in centistokesat 50 Deg.Cat 98 Deg.C18020 307Ash Content by weight (Max.)0.1%8Acidity (in inorganic)Nil9Pour Point (Max.)24 Deg.C (Max.)10Sodium Content-11Vanadium Content25 ppm12Specific heat (kCal/kg. Deg.C)0.513Gross Calorific Value, kCal/kgAbout 11,000B) LIGHT DIETALWANDI OIL (LDO)Sl. No.Characteristics(IS 1460)1Acidity, inorganicNil2Acidity, total, mg of KOH/g (max.)0.53Ash percent by mass (max.)0.014Carbon residue (Ramsbottom) on 10 percent residue, percent by mass (max.)0.205Pour Point (max.)15 Deg.C & 3 Deg.C for Summer and Winter respectively6Copper strip corrosion for 3 hours at 100 Deg.C.Not worse than No.17Flash point (min.)(Pensky Martens) closed cup66 Deg.C8Kinematic viscosity in Centistokes at 40 Deg.C2.0 to 5.09Sediment percent by mass (max.)0.0510Density at 15 deg C, kg/m3820 - 86011Total sulfur percent by volume (max.) 1.012Water content, percent by mass (max)0.513Oxygen content, percent by mass (max)0.614Gross Calorific Value, kCal/kg10,0002.4 锅炉给水及蒸汽品质要求 Requirement of boiler feedwater and steam quality2.4.1 补给水质量标准 make-up water quality standard序号NO.项 目Item单 位Unit指 标Quantity备 注Note1二氧化硅 SiO2mg/L202电导率（25）conductivityscm0.202.4.2 锅炉给水质量标准 feedwater quality standard序号NO.项 目Item单 位Unit指 标Quantity备 注Note1TOCmg/L2002二氧化硅 SiO2mg/L153溶解氧 Dissolved Oxygenmg/L30150加氧处理Oxygenation treatment4铁 Femg/L105铜 Cumg/L36钠 Namg/L57pH（25）8.09.0无铜系统Non Cu system8电导率（25）conductivityms/cm0.15加氧处理Oxygenation treatment0.20挥发处理All Volatile Treatment9联氨 hydrazine densitymg/L加氧处理Oxygenation treatment1050挥发处理All Volatile Treatment10氯离子 CI-mg/L5在锅炉启动初期，若加氧系统不具备投入条件，可以采用全挥发性处理（All Volatile Treatment） AVT水处理方式。当锅炉负荷升高到30BMCR以上时，需从AVT运行转为复合氧处理（Combined Water Treatment）CWT运行模式。In the initial startup, if oxygenation system does not have put-in condition, AVT (All Volatile Treatment) water treatment can be used. When boiler load increase to more than 30BMCR, AVT operation should be turned to CWT (Combined Water Treatment)operation mode. CWT运行模式许可条件为： The approved condition of CWT operation mode:a） 所带负荷高于最低运行负荷；The load is more than the minimum operation load;b） 省煤器进口给水导电率0.02 mS/m； Economizer inlet feedwater conductivity 0.02 mS/m；c） 1台以上给水泵投入运行。More than 1 feedwater pump are put into operation.2.5 服务设施 Service device 2.5.1 厂用和仪表用压缩空气系统供气压力为0.400.7MPa，最高温度为50。Air supply pressure of house-service and instrument compressed-air system is 0.400.7MPa, the highest temperature is 50.2.5.2 电源：交流电源供电电压：415 V直流电源供电电压：240VPower: AC supply voltage: 415 VDirect current supply voltage: 240V2.6 锅炉运行条件及模式 Boiler operation condition and mode锅炉运行方式：带基本负荷并具有良好的调峰能力。Boiler operation mode: it involves in base load with good peak load capability.制粉系统：采用正压冷一次风直吹式制粉系统，配6台双进双出磨煤机，五运一备。煤粉细度R90=20%（设计煤种）。Coal pulverizing system: it adopts positive pressure direct cool primary air pulverizing system, with 6 double-ended ball mills, 5 mills are in operation and 1 mill is standby. The fineness of the pulverized coal is R90=20%（design coal）.给水调节：机组配置两台50%BMCR容量的汽动给水泵+1台50% BMCR容量的启动用电动给水泵。Feedwater adjustment: the unit is arranged two 50%BMCR turbine-driven feed water pump and one 50% BMCR electric feedwater pump for startup.汽轮机旁路系统：60高/低压串联旁路。Turbine bypass system: the capacity is 60BMCR with high pressure and low pressure arrangemented in series .排渣方式：采用刮板捞渣机除渣系统。 Ash removal method: mechanical ash removal method namely the scraping plate type eliminator system is adopted.3、锅炉特点 Boiler feature3.1 技术特点 Technical feature(1) 良好的变压、备用和再启动性能Good variable pressure, standby and re-startup performances锅炉下部炉膛水冷壁及灰斗采用螺旋管圈，在各种负荷下均有足够的冷却能力，并能有效地补偿沿炉膛周界上的热偏差，水动力特性稳定；采用四只启动分离器，壁厚均匀，温度变化时热应力小，适合于滑压运行，提高机组的效率，延长汽轮机的寿命。The lower furnace waterwall and hopper adopt spiral coil and have enough cooling capacity under different loads, it can compensate the thermal deviation of furnace circumambience effectively, and the hydrodynamic force feature is stable; four startup separators are adopted, the wall thickness is even and the thermal stress is small when temperature changing, it is fit for sliding pressure operation, increase the unit efficiency and extend the life-time of turbine. (2) 采用大气扩容式启动系统Adopted atmospheric flash type strat-up system锅炉具有快速启动能力，缩短机组启动时间；系统简单、运行可靠。启动系统设置足够容量的大气式扩容器和疏水箱。The boiler has the capacity of quick startup which can shorten the startup time. The startup system is simple and it can operation stably. The system equipped with atmosphere type flash tank and water tank which has enough capacity. (3) 燃烧稳定、温度场均匀的新型切圆燃烧系统New type tangential combustion system which has stable firing and uniform temperature field新型切圆燃烧系统燃烧方式能保证沿炉膛水平方向均匀的热负荷分配。这种强化型单切圆因煤粉气流垂直于水冷壁，且大切圆使炉膛内火焰充满度好，对于保证燃烧稳定性有利，与角式布置的燃烧器相比，具有火焰行程短，火焰两侧补气条件好等优点。New type tangential combustion system can guarantee heat distribution along horizontal furnace is uniform. The pulverized coal flow of this reinforced single tangential is vertical to water wall and big tangential makes the furnace flame fullness is good, and it is good for guarantee the stable combustion. Compare to corner arrangement burner, it has the advantages of short flame range and good condition for compensating air of flame two-side.(4) 高可靠性的运行性能High-reliability operation哈锅拥有丰富的变压运行直流锅炉设计、制造经验，已经有超过一百余台哈锅制造生产的超临界锅炉在运行，同时在燃烧理论研究和实际应用上进行了大量工作，并对已投运的机组积累了大量的调试和研究数据。本工程的炉型结合多台具有良好运行业绩锅炉的成熟设计和制造经验，机组的可用率和可靠性高，能满足用户的各种技术要求。HBC has abundant experience of designing and manufacturing variable-pressure operation once-through boiler,直流锅炉 and there are more than 100 units manufactured by HBC have been put into operation, at the same time HBC does a lot in the combustion theory research and practical application, and accumulates a lot of commission test and research data. This boiler combines mature design and manufacture experience of some boilers with good operation reference, the usability and reliability of the unit is high which can meet different technical requirements of the customer.3.2 结构特点 Structural features(1) 本锅炉中、下部水冷壁采用螺旋管圈，上部水冷壁采用一次上升垂直管屏，二者之间用过渡集箱连接。螺旋管圈的同一管带中的各管子以相同方式从下到上绕过炉膛的角隅部分和中间部分，同时螺旋管圈的旋转上升方向与燃烧器的火焰切圆旋转方向相反，水冷壁吸热均匀，管间热偏差小，使得水冷壁出口的介质温度和金属温度非常均匀。因此，螺旋管圈水冷壁可以适应炉内燃烧工况的变化。The middle and lower waterwall of furnace adopts spiral coil, upper waterwall adopts primary upward vertical panel, and the two are connected by transition header. Different tubes in one tube belt of spiral coil are around furnace corner zone and middle zone from down to up in same method, and the rotary direction of spiral coil is opposite to the rotary direction of burner flame tangent, the waterwall heat absorbing is uniform, heat deviation between tubes is small, that makes waterwall outlet medium temperature and metal temperature very uniform. So spiral coil waterwall can suit the changes of furnace combustion condition.(2) 在螺旋管圈水冷壁部分采用可膨胀的带张力板垂直刚性梁系统，螺旋管圈的悬吊是由均匀附着于管壁外表面的张力板实现的。张力板从冷灰斗的底部一直布置到螺旋管圈和垂直管屏的过渡区，在过渡区把重量荷载通过梳形吊板均匀地传给上部垂直管屏。刚性梁体系及炉墙等的自重荷载完全由垂直搭接板支吊，下部炉膛和冷灰斗的荷载能传递给上部垂直水冷壁。刚性梁和水冷壁之间相互不直接焊接，可以相对滑动，以防止附加热应力的产生，保证炉膛安全可靠运行。The expandable vertical buckstay system with strap is adopted in spiral coil waterwall part; the hanging of spiral coil is realized by the strap which equably adheres on the outer surface of tube wall. The strap is arranged from hopper bottom to the transition zone of spiral coil and vertical panel, in the transition zone the weight load is passed to upper vertical panel uniformly by comb plate. The dead-load of buckstay system and furnace is totally hanged by vertical lap jointed sheeting, the load of lower furnace and hopper can be passed to upper vertical waterwall. Direct weld could not be taken between buckstay and waterwall, relative slide is permitted to prevent additional thermal stress and guarantee furnace reliably operation. (3) 为了保持过热器和再热器部件的横向节距和防止晃动，采用以下蒸汽冷却夹管和间隔管结构：In order to keep the transverse pitch of SH and RH parts and to prevent vibration, following steam cooling girder tube and spacer tube structures are adopted:蒸汽冷却夹管用于保持分隔屏的横向节距，防止分隔屏过分偏斜，其流程如下:Steam cooling girder tube is used to keep the transverse pitch of division panel to prevent excessive deviation. The flow chart is as follows:分隔屏入口集箱蒸汽冷却夹管入口管蒸汽冷却夹管定位管蒸汽冷却夹管出口管末级过热器出口集箱。Division panel inlet headersteam cooling clamp tube inlet tubesteam cooling clamp tube locating tubesteam cooling clamp tube outlet pipingfinal SH outlet header蒸汽冷却间隔管用于保持分隔屏过热器、末级过热器和末级再热器的横向节距，防止末级过热器和末级再热器过分偏斜，其流程如下:Steam cooling spacer tube is used to keep the transverse pitch of division SH, final SH and final RH to prevent excessive deviation. The flow chart is as follows:图1 蒸汽冷却夹管Chart1 Steam cooling girder tube图2 蒸汽冷却间隔管Chart2 Steam cooling spacer tube立式低过出口连接管分隔屏过热器区域蒸汽冷却间隔管末级过热器入口集箱。Vertical low-temp SH connecting pipe steam cooling spacer tube of division SH final SH inlet header立式低过出口连接管末级过热器区域蒸汽冷却间隔管末级过热器入口集箱。Vertical low-temp SH connecting pipe steam cooling spacer tube of final SH final SH inlet header立式低过出口连接管末级再热器区域蒸汽冷却间隔管末级过热器入口集箱。Vertical low-temp SH connecting pipe steam cooling spacer tube of final RH