印度塔尔万迪4660mw超临界燃煤电站项目锅炉说明书(中英文版)

印度塔尔万迪4660mw超临界燃煤电站项目锅炉说明书(中英文版)内容摘要：

.) % 8 Acidity (in inanic) Nil 9 Pour Point (Max.) 24 (Max.) 10 Sodium Content Proper Instruction of Talwandi 4 660MW Supercritical Boiler 6 11 Vanadium Content 25 ppm 12 Specific heat (kCal/kg. ) 13 Gross Calorific Value, kCal/kg About 11,000 B) LIGHT DIETALWANDI OIL (LDO) Sl. No. Characteristics (IS – 1460) 1 Acidity, inanic Nil 2 Acidity, total, mg of KOH/g (max.) 3 Ash percent by mass (max.) 4 Carbon residue (Ramsbottom) on 10 percent residue, percent by mass (max.) 5 Pour Point (max.) 15 amp。 3 for Summer and Winter respectively 6 Copper strip corrosion for 3 hours at 100 . Not worse than 7 Flash point (min.) (Pensky Martens) closed cup 66 8 Kinematic viscosity in Centistokes at 40 to 9 Sediment percent by mass (max.) 10 Density at 15 deg C, kg/m3 820 860 11 Total sulfur percent by volume (max.) 12 Water content, percent by mass (max) 13 Oxygen content, percent by mass (max) 14 Gross Calorific Value, kCal/kg 10,000 锅炉给水及蒸汽品质要求 Requirement of boiler feedwater and steam quality 补给水质量标准 makeup water quality standard 序号 NO. 项 目 Item 单 位 Unit 指 标 Quantity 备 注 Note 1 二氧化硅 SiO2 g/L ≤20 2 电导率（ 25℃ ） μs／ cm ≤ Proper Instruction of Talwandi 4 660MW Supercritical Boiler 7 conductivity 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 Note 1 TOC g/L ≤200 2 二氧化硅 SiO2 g/L ≤15 3 溶解氧 Dissolved Oxygen g/L 30～ 150 加氧处理 Oxygenation treatment 4 铁 Fe g/L ≤10 5 铜 Cu g/L ≤3 6 钠 Na g/L ≤5 7 pH（ 25℃ ）  无铜系统 Non Cu system 8 电导率 （ 25℃ ）conductivity s/cm ≤ 加氧处理 Oxygenation treatment ＜ 挥发处理 All Volatile Treatment 9 联氨 hydrazine density g/L — 加氧处理 Oxygenation treatment 10～ 50 挥发处理 All Volatile Treatment 10 氯离子 CI g/L ≤5 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 30％ BMCR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 putin condition, AVT (All Volatile Treatment) water treatment can be used. When boiler load increase to more than 30％ BMCR, AVT operation should be turned to CWT (Combined Proper Instruction of Talwandi 4 660MW Supercritical Boiler 8 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＜ mS/m； Economizer inlet feedwater conductivity ＜ mS/m； c） 1 台以上给水泵投入运行。 More than 1 feedwater pump are put into operation. 服务设施 Service device 厂用和仪表用压缩空气系统供气压力为 ～ ，最高温度为50℃。 Air supply pressure of houseservice and instrument pressedair system is ～ , the highest temperature is 50℃ . 电源：交流电源供电电压： 415 V 直流电源供电电压： 240V Power: AC supply voltage: 415 V Direct current supply voltage: 240V 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 doubleended 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% Proper Instruction of Talwandi 4 660MW Supercritical Boiler 9 BMCR 容量的启动用电动给水泵。 Feedwater adjustment: the unit is arranged two 50%BMCR turbinedriven 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 60％ BMCR 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. 锅炉特点 Boiler feature 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 restartup 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 pensate 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 lifetime of turbine. (2) 采用 大气扩容式启动 系统 Adopted atmospheric flash type stratup 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。 Proper Instruction of Talwandi 4 660MW Supercritical Boiler 10 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 bustion 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 bustion 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 bustion. Compare to corner arrangement burner, it has the advantages of short flame range and good condition for pensating air of flame twoside. (4) 高可靠性的运 行性能 Highreliability operation 哈锅拥有丰富的变压运行直流锅炉设计、制造经验，已。