印度TALWANDI锅炉说明书(中英)F0310BT001C411(2)

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

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 basis

2.1 工程主要原始资料 Main original materials 2.1.1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, India The Site elevation: upper MSL 208.5m 2.1.2气象特征Climate feature i. Temperature

Mean 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 Speed

Mean minimum : 2.1 km/hr Mean maximum : 6.2 km/hr

Wind direction : North west to Southeast

Wind loading will be in accordance with Indian Standard Code IS-875 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-1997 iii. Rainfall

Maximum annual : 693 mm iv. Relative Humidity Maximum : 76%

Minimum : 33%

Seismic Zone : Zone III as per seismic zone classification IS－1893/latest version 2.2 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 analysis

2.3 点火及助燃用油 Fuel oil for ignition and firing supporting

2.4 锅炉给水及蒸汽品质要求 Requirement of boiler feedwater and steam quality

2.4.1 补给水质量标准 make-up water quality standard

2.4.2 锅炉给水质量标准 feedwater quality standard

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 put-in 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

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0.40～0.7MPa，最高温度为

50℃。

Air supply pressure of house-service and instrument compressed-air system is 0.40～0.7MPa, 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：240V

Power: AC supply voltage: 415 V Direct current supply voltage: 240V

2.6 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 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. 3、锅炉特点 Boiler feature 3.1 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。

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