DOC《海萨2x600MW锅炉主要施工方案》

海萨2x600MW锅炉主要施工方案 Hisar2*600MW Boiler Main Erection Plan 本期建设规模2*600MW燃煤发电机组.

锅炉由SEC提供.锅炉为亚临界参数、强制循环、一次中间再热、单炉膛平衡通风、固态排渣、露天布置、全钢构架的∏型汽包炉. This project is 2*600MW coal fired thermal units, boiler shall be supplied by SEC. The boiler is all steel structural ∏ type drum boiler of a subcritical parameter, pump circulation, single reheat, single furnace balance draft, dry slagging and hypaethral placement. 锅炉施工方案 Boiler Erection Plan 锅炉为上海电气集团生产的亚临界参数、强制循环、一次中间再热、单炉膛平衡通风、固态排渣、露天布置、全钢构架的∏型汽包炉. The Boiler shall be supplied by SEC. The boiler is all steel structural ∏ type drum boiler of a subcritical parameter, pump circulation, single reheat, single furnace balance draft, dry slagging and hypaethral placement.

1 施工场地及主吊机械 Erection site and main hoisting equipments 1.1 施工场地布置 Erection site plot 锅炉组合场布置按总平面布置图,组合场内布置50t龙门吊各4台,锅炉受热面的大部分组合工作安排在此完成. Boiler assembly yard will be arranged as per general layout drawing. Four 50T gantry cranes will be provided respectively. Assembly of most heating surface structures will be done in this area. 1.2 施工机械选择 Selection of construction plants 根据本工程锅炉的结构特点,以及我公司的机械状况,选用以下机械作为锅炉主要施工机械.Given to the features of the boier and mechanical capacity of our company, we chose plants below as our main construction equipmemnts. 序号Sl 机械名称 description 机械型号 mode 数量quantity

1 圆筒吊cylindrical crane FZQ2000/80t

2 2 履带吊crawler crane CC1400

1 3 龙门吊 frame crane 50t

4 4 履带吊crawler crane CC2500

1 5 劳辛格Stand-jack system 200t

2 6 塔吊 tower crane C7050/20t

3 (1) FZQ2000/ 80T圆筒吊 FZQ2000/ 80T cylindrical crane FZQ2000圆筒吊做为附吊机械,筒身高度102m,采用60m臂长工况,主要负责锅炉本体部件的吊装工作.FZQ2000 cylindrical crane is arranged as auxiliary hoisting plants, which is designed to hoist boiler &

components (crane body height 102m , length of jib 60m). (2) 250t履带吊 250t Crawler crane CC1400/250t履带吊为锅炉主吊机械,采用SWSL塔式工况,后配重40t,主臂角度85度:主副臂:72m加36m;

最大作业半径42m,负荷27t;

最小作业半径24m时,负荷为39t. CC1400/250 Crawler cranes are designed as main boiler hoisting euqipment, adopting SWSL tower working conditions, with a banlance weight of 40t and main jib angle of 85°;

length of main &

auxiliary jib,72+36m, max working radius 42m,load 27t;

min working radius 24m,load 39t. 吊装主要内容为:Main hoisting scope: a. 锅炉钢架吊装.Boiler steel structure lifting. b. 锅炉受热面吊装、空气预热器吊装.Boiler heating surface ,airpreheater lifting. c.烟、风、煤管道安装 Flue gas,air,coal piping erection. d. 根据现场实际换工况用于大件设备的安装和卸车工作. Employed in erection of other heavy equipments and unloading works. CC1400/250t履带吊性能表(SWSL塔式、后配重40t工况)主附臂(主臂角度85?):72m+36m.CC1400/250t crawler crane performance list(SWSL TOWER type,banlance weight 40t), main &

auxiliary jib,72+36m(main jib angle of 85°) . 幅度 scope 24m 26m 28m 30m 34m 38m 42m 负荷load 39t 38t 38t 37t 34t 31t 27t (3)前期采用C7050/20t作为钢结构的主要吊装机械,后期作为电除尘的主吊机械.In prophase, C7050/20t shall be employed as main hoisting plants for structure;

in anaphase shall be employed in hoisting ESP components. (4) 其它吊装机械 Other lifting plants A四台50t龙门吊布置于锅炉组合场,负责设备装卸车、受热面膜式壁及蛇行管排的组合工作及烟风道的制作组合工作.

4 frame cranes of 50t shall be arranged in Boiler structure assembly yard, employed in equipments loading and unloading, heating surface and pipe coil assembly works and flue/air ducting fabricating asembly works. b. 50t汽车吊负责现场设备卸车倒运等工作. . b. Truck crane of 50t shall be employed in equipments unloading in site. c.卷扬机布置在锅炉0m,辅助进行炉膛内管排及小件的吊装. c . winch shall be arranged in 0m, assisting furnace internals lifting and the lifting of some samll units. d. 劳辛格负责汽包吊装工作.Stand-jack system will be used in steam drum listing works. (5) 施工电梯布置 service lift arrangment 为方便锅炉施工,在炉一侧布置一施工电梯.Sservice lifts shall be arranged in each side of the boiler. 2锅炉本体钢架安装 Boiler steel structure erection 锅炉钢结构由顶板、柱和梁、垂直支撑、水平支撑等部件组成,顶板由主梁、次梁和小梁组成一个坚固的梁格,其四周有水平支撑,主梁端有垂直支撑.Boiler steel structure consists of roof, column, girder, vertical and lateral supporting, while roof comprising of girder, secondary beam, trabecula and forming a firm box. 钢架内侧柱为主要承重钢柱,外侧副柱则通过梁、水平支撑与内侧柱相连,以增加钢架的整体稳定性.钢结构从前至后共有6排.锅炉钢架的连接,采用高强螺栓和焊接相结合的方式,顶板和主梁与次梁之间,柱和梁之间,垂直支撑、水平支撑之间采用扭剪型高强螺栓连接,其余构件间采用焊接连接. Internal pillars of the structure are designed for bearing, while the external pillars are designed to reinforce the entire stability of structure by connecting with girders, lateral supporting and internal pilla........