350MW亚临界机组汽轮机本体安装措施(中英文版).doc
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1、Work instruction for steam turbine installation1. Project Overview工程概述The proposed * Thermal Power Station would be set up by *at a site, which falls under the Dhenkanal district of Orissa, India. The project would be designed by *,and constructed by *. * should be responsible for the design, procur
2、ement, supply, delivery, erection, commissioning and performance testing of the IPP on EPC basis. Turbine is manufactured and supplied by Dongfang Turbine Co., Ltd. , the type of which is sub-critical, single middle reheat, double cylinders double exhausts, tandem, condensing turbine, unit model: N3
3、50-16.7/537/537.The main technical parameters of this unit are as follows:*电站工程位于*,该工程由*设计,*EPC方式完成电站设计、采购、供货、运输、安装、调试和性能验收试验工作。汽轮机是由东方汽轮机有限公司制造并供货,其型式为亚临界、一次中间再热、双缸双排汽、单轴、凝汽式汽轮机,机组型号为:N350-16.7/537/537。本机组主要技术参数如下:(1) Main parameters of turbine汽轮机主要参数Maximum continuous operating power: 350MW最大连续运行功
4、率: 350MWRated speed: 3000r/min额定转速: 3000r/minDirection of rotation: clockwise direction is from steam side to electric side.旋转方向: 自汽端向电端看为顺时针方向。Rated pressure of main steam before the main steam valve: 16.7IPa (a)主蒸汽阀前主蒸汽额定压力:16.7IPa(a)Rated temperature of main steam before the main steam valve: 537
5、 主蒸汽阀前主蒸汽额定温度:537Rated flow of main steam: 1105.8t / h 主蒸汽额定流量: 1105.8t/h Front pressure of reheat steam inlet valve: 3.684IPa (a)再热蒸汽进汽阀前压力: 3.684IPa(a)Front temperature of reheat steam inlet valve: 537 再热蒸汽进汽阀前温度: 537High-pressure cylinder exhaust steam flow: 1010.816t / h高压缸排汽流量: 1010.816t/hRated
6、 back pressure: 10.13kPa (a)额定背压: 10.13kPa(a)Regenerate grades: three HP heaters, four LP heaters, one deaerator回热级数: 三高、四低、一除氧Flow grades: A total of 27 grades通流级数: 总共27级HP cylinder: 1 adjustment grade +8 pressure grades高压缸: 1调节级8压力级IP cylinder: 6 pressure grades中压缸: 6压力级LP cylinder: 2 6 pressure g
7、rades低压缸: 26压力级(2) Main equipment weight 主要设备重量 High and medium pressure outer cylinder upper half: 31600kgHigh and medium pressure outer cylinder lower half: 36400kgHP inner cylinder upper half : 10200kgHP inner cylinder lower half : 10300kg LP cylinder outer front : 53850kgLP cylinder outer middle
8、 : 53900kgLP cylinder outer back : 51730kgLP inner cylinder rthe upper half : 33000kgLP inner cylinder the lower half : 33230kgHigh and medium pressure rotor : 24266kgLP rotor : 60885kg高中压外缸上半:31600kg 高中压外缸上半:36400kg 高压内缸上半 :10200kg 高压内缸下半 : 10300kg 低压外缸前部 :53850kg低压外缸中部 :53900kg低压外缸后部 :51730kg低压内缸上
9、半 :33000kg低压内缸下半 :33230kg高中压转子 :24266kg低压转子 :60885kg2. Construction reference施工依据2.1 The equipment drawings and Installation and maintenance instruction of Steam Turbine proper and other technical information will be offered by manufacturer; 制造厂供设备图纸及汽轮机本体安装及维护说明书等技术资料;2.2 Technical Specification of
10、 Electric Power Construction and Acceptance turbine unit section (DL 5011-92);电力建设施工及验收技术规范汽轮机机组篇(DL 5011-92);2.3 Thermal Power Construction Quality Inspection and Assessment Standards Turbine Section (1998 edition);火电施工质量检验及评定标准汽机篇(1998年版);2.4 Electric power construction safety regulations (power p
11、lant part) DL5009.1-2002;电力建设安全工作规程(火力发电厂部分) DL5009.1-2002;2.5 This work instructions;本作业指导书;3. Preliminary work施工准备3.1 The main machinery and tools主要机械和工具Sl.No.序号Description名称Type规格Quantity数量1Travelling Crane行车125T/25T1set台2Crawler crane履带吊250t1set台3Truck crane汽车吊50T1set台4Wagon拖车20T1set台5Air compre
12、ssor空压机5m1set台6Surface plate标准平板200*200mm,300*300mm1 for each各1件7Hydraulic jack液压千斤顶100T2sets套8Jacking screw螺旋千斤顶16T,30T2 sets for each各2套9Hydraulic wrench液压扳手M36-M1101set套10Pneumatic wrench风动扳手M32-M762sets套11Electric wrench电动扳手M22-M302sets套12Torque wrench力矩扳手300-700N1set套13Torque wrench力矩扳手700-2000
13、N2 sets套14Dead smooth file油光锉10 pieces把15Oilstone油石2 pieces块16Chain block倒链1T,2T,3T,5T,10T4 sets for each各4套17Water tank水罐4 pieces件18Alignment frame找中心架子4 sets套19Hack hammer砍锤4 pieces把20Hammer手锤4 pieces把21Sledge hammer大锤4 pieces把3.2 Measuring tools量具 NumberDescriptionSpecificationsQuantity1Outside M
14、icrometer0-25mm ,25-50mm ,50-75mm ,75-100mm,100-125mm ,125-150mm ,150-175mm,175-200mm,2 sets2Outside Micrometer200-225mm ,225-250mm ,250-275mm,275-300mm ,300-400mm ,400-500mm1 set each3Micrometer50-600mm ,150-2000mm1 set each4Depth micrometer0-150mm ,0-300mm1 set each5Scale diameter0-6mm ,6-10mm ,10
15、-18mm ,18-35mm,35-50mm ,50-160mm1 set each6Dial indicator (with support)0-3mm3 sets7Dial indicator (with support)0-10mm15 sets8Dial indicator (with support)0-30mm2 sets9Flow gap feeler0-10mm ,10-20mm ,20-30mm ,30-40mm1 set each10Optical image combinator1 Piece11Level1 Piece12Frame Level1 Piece13feel
16、er 0-150mm514feeler 0-300mm1015Meter ruler5m516Steel Tape 50mm1序号名称规格数量1外径千分尺0-25mm,25-50mm,50-75mm,75-100mm,100-125mm,125-150mm,150-175mm,175-200mm,各2套2外径千分尺200-225mm,225-250mm,250-275mm,275-300mm,300-400mm,400-500mm各1套3内径千分尺50-600mm,150-2000mm各1套4深度千分尺0-150mm,0-300mm各1套5内径量表0-6mm,6-10mm,10-18mm,18
17、-35mm,35-50mm,50-160mm各1套6百分表(含表架)0-3mm3套7百分表(含表架)0-10mm15套8百分表(含表架)0-30mm2套9通流间隙塞尺0-10mm,10-20mm,20-30mm,30-40mm各1套10光学合像水平仪1台11水准仪1台12框式水平仪1台13塞尺0-150mm5把14塞尺0-300mm10把15米尺5m5把16钢卷尺50mm1把3.3 Construction staff施工人员1 monitor, 3 technicians, 20 installers, 4 riggers, 4 operators, 2 electric welders,
18、2 gaswelders. 班长1人,技术员3,安装工20人,起重工,4人,操作工4人,电气焊各2人4. Construction operation program 施工作业方案First, conduct locating and assembly of low-pressure cylinder according to the vertical and horizontal center line of foundation, adjust the rotor inclination and cylinder leveling as required, locate and align
19、ment LP and H/IP cylinder according to the requirement of rotor coupling center, and then set center alignment within the cylinder, measure and adjust the gap of flow passage, cover the upper castings of steam cylinder at last, and align, connect the coupling.根据基础纵横中心线先进行低压缸的就位组合,按要求调整转子扬度及汽缸水平等,并根据
20、转子对轮中心要求就位找正低压、高中压缸,然后进行缸内部套中心找正和通流部分间隙测量调整,最后扣汽缸大盖并找正、联接各靠背轮。5. Construction process施工流程Technique Process工艺流程Requirements and standards要求与标准一、 Construction Preparation 施工准备1、 Technical preparation技术准备2、 Tools, appliance and measuring tools preparation工器具、量具准备3、 Open box inventory of equipment设备开箱清点
21、 二、 Equipment pre-inspection设备预检修1、 Bearing block overhaul 轴承座检修(1)Internal cleaning check 内部清理检查(2) Oil test in oil chamber油室做注油试验 (3)The inspection of flange contacting surface by color coating test各油路法兰结合面涂色检查接触情况(4)Inspection of the level joint surface clearance of bearing block after tightening
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