7050-1-8661燃烧设备说明书

本文件中图样、文字及数据为上海锅炉厂有限公司所有,未经上海锅炉厂有限公司书面许可，不得以任何方式复制或扩散到第三方。THISDRAWINGORDOCUMENTBELONGSTOSBWLANDMAYNOTBEREPRODUCEDORDISCLOSEDTOANYTHIRDPARTYINANYFORMWITHOUTTHEPRIORWRITTENPERMISSIONOFSBWL.Instructionmanualoffiringequipment产品型号MODELOFPRODUCT产品名称NAMEOFPRODUCT文件编号SERLESNO.编制日期PREPAREDBYDATE校对日期CHECKEDBYDATE审核日期REVIEWEDBYDATE批准日期APPROVEDBYDATE版次REV7050-1-86612710t/h超超临界压力直流锅炉SG-2710/33.03-M7050燃烧设备说明书2014年5月燃烧设备说明书7050-1-8661第2页共34页本文件中图样、文字及数据为上海锅炉厂有限公司所有,未经上海锅炉厂有限公司书面许可，不得以任何方式复制或扩散到第三方。THISDRAWINGORDOCUMENTBELONGSTOSBWLANDMAYNOTBEREPRODUCEDORDISCLOSEDTOANYTHIRDPARTYINANYFORMWITHOUTTHEPRIORWRITTENPERMISSIONOFSBWL.目录1概述...............................................................................................................................42设计特点.......................................................................................................................52.1高级复合空气分级低NOx切向燃烧系统技术特点.........................................52.2快速着火煤粉喷嘴设计......................................................................................62.3对冲同心正反切圆燃烧系统设计......................................................................72.4端部风喷嘴设计..................................................................................................82.5采用可水平摆动调节的高位燃尽风和低位燃尽风设计..................................82.6燃烧器灵活的投入方式......................................................................................92.7多种措施防止炉内结渣以及高温腐蚀............................................................102.8多种措施降低NOx的排放浓度.......................................................................102.9多种措施实现低负荷稳燃................................................................................113燃料.............................................................................................................................114设计参数.....................................................................................................................135结构及使用说明.........................................................................................................145.1箱壳....................................................................................................................145.2煤粉风室............................................................................................................155.3二次风室及喷嘴摆动系统................................................................................155.4二次风挡板及控制............................................................................................155.5护板及护板框架................................................................................................165.6燃烧器与煤粉管道的连接................................................................................175.7上组主燃烧器部分喷嘴及高位和低位燃尽风喷嘴的水平摆动调节............176燃烧器的包装.............................................................................................................187燃烧器安装注意事项.................................................................................................188等离子点火装置.........................................................................................................249进退式简单机械雾化油枪.........................................................................................24附图1：煤粉燃烧器立面布置图....................................................................................27燃烧设备说明书7050-1-8661第3页共34页本文件中图样、文字及数据为上海锅炉厂有限公司所有,未经上海锅炉厂有限公司书面许可，不得以任何方式复制或扩散到第三方。THISDRAWINGORDOCUMENTBELONGSTOSBWLANDMAYNOTBEREPRODUCEDORDISCLOSEDTOANYTHIRDPARTYINANYFORMWITHOUTTHEPRIORWRITTENPERMISSIONOFSBWL.附图2：煤粉燃烧器平面布置图....................................................................................28附图3：煤粉燃烧器角部详图........................................................................................29附图4：AGP燃烧器立面布置图...................................................................................30附图5：AGP燃烧器角部详图.......................................................................................31附图6：一次风室............................................................................................................32附图7：直吹二次风喷嘴................................................................................................33附图8：偏置二次风喷嘴................................................................................................33附图9：高位及低位燃尽风喷嘴....................................................................................33附图10：燃尽风二次风门（参考）..............................................................................34燃烧设备说明书7050-1-8661第4页共34页本文件中图样、文字及数据为上海锅炉厂有限公司所有,未经上海锅炉厂有限公司书面许可，不得以任何方式复制或扩散到第三方。THISDRAWINGORDOCUMENTBELONGSTOSBWLANDMAYNOTBEREPRODUCEDORDISCLOSEDTOANYTHIRDPARTYINANYFORMWITHOUTTHEPRIORWRITTENPERMISSIONOFSBWL.1概述采用中速磨煤机正压直吹式制粉系统，要求每炉配6台磨煤机，其中5台运行，1台备用（在BMCR工况下）；对于设计煤种煤粉细度为R90=15.00%、校核煤种1煤粉细度为R90=18.38%、校核煤种2煤粉细度为R90=23%。对于设计煤种燃烧器入口一次风温为78℃、校核煤种1燃烧器入口一次风温为78℃、校核煤种2燃烧器入口一次风温为60℃。均匀性指数n=1.0～1.1。采用等离子点火技术，每台炉配一套等离子点火系统，对应B磨煤机的两层煤粉燃烧器。为了保证锅炉启动点火性能，保留燃油系统。本工程燃烧方式采用高级复合空气分级低NOx切向燃烧技术和炉膛布置的匹配来满足要求的NOx排放小于180mg/Nm3（O2=6%）的指标。通过分析煤粉燃烧时NOx的生成机理，低NOx煤粉燃烧系统设计的主要任务是减少挥发份氮转化成NOx，其主要