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1、,PRODUCTS FOR THE POWER MARKET,Shanghai Power Equipment Manufacture Factory (Main) Co., Ltd.,火 力 发 电 厂,火 力 发 电 厂,FLOWS UP TO 3,000 Cu M/Hr流量最大可达 3,000 m3/hHEADS UP TO 3,950 m扬程最高可达 3,950 mRUNNING SPEEDS UP TO 8,000 RPM 最高运行速度可达 8,000 r/minOPERATING EMPERATURES TO 230 Deg C.运行温度可达 230,DESIGN DUTY 使 用
2、 范 围,SPEM Pumps Boiler Feed Pumps,SPEM Pumps Boiler Feed Pumps 上电修 锅炉给水泵,SPEM pumps extended operating range to meet market needs improved efficiency high availabilityimproved materials for better lifeimproved rotor-dynamics and lower vibration easier to maintain 上电修给水泵主要特点: 规格齐全, 满足各种需要效率高可靠性高选用优质材
3、料, 适于长期运行运行稳定性好易于维护,Multistage Barrel Pumps多级筒式泵,boiler feed water pump for Fossil Power Generation 火电厂用锅炉给水泵,SPEM Pumps leads the way in barrel design using diffuser as well as volute technology for Power, Oil & Gas and HPI applications. 上电修泵结合扩压器及涡壳技术，采用筒式结构，广泛应用于电力、石油和天然气，以及化工领域,EPRI Research Ord
4、er RP 1884-10,System interaction系统影响,Rotor dynamics转子动力学研究,Cavitation studies汽蚀性能研究,Hydraulic studies水力性能研究,Input in current design应用于现代设计,Boiler Feed Pump EPRI Research Order锅炉给水泵 EPRI 研究成果的应用,Function of increased labyrinth gaps for different specific speed 不同比转速下泵内部间隙与效率的关系,100 % 150 200 250,Drop
5、 inEfficiencyDelta eta %,Labyrinth gap,Leakage %,New,Recommended Overhaul Worn 推荐检修磨损量,Max.Operating Limit Worn最大运行极限磨损量,Normal operating range正常,Danger危险,Forbidden range禁止,Higher Efficiency 高效率的给水泵,效率降低,泄漏,间隙,Balance Return Line平衡鼓泄漏回路,Pressure压力,High,Low,Booster pump 前置泵,Boiler feed pump给水泵,Balanc
6、e Return Line平衡鼓泄漏回路,Minimum flow line最小流量回路,Deaerator除氧器,Main Design Features of Boiler Feed Pumps锅炉给水泵主要设计特点,Full pull out cartridge for rapid changeover整抽式芯包，更换方便快速,Bolted delivery cover with metal to metal location for optimum alignment of bearing housing 螺栓连接的出口端盖精确定位，利于轴承室的对正,Nozzles accepting
7、 high loads 牢固的出水口可承受较高的负荷,Guide key and centre line pump feet ensure hot alignment 导向键和中心线支撑确保泵受热状态下的对中,Forged barrel casing to accept thermal shocks and transient conditions锻造筒体可承受热冲击和瞬间变化,Pressure Retaining Parts Design压力部件设计,Analysed with proven codes: German vessel code AD, standard ASME sectio
8、n VIII, Division 1, option FE for selected cases成熟可靠的设计准则: 德国压力容器设计准则 AD，（标准） ASME section VIII, Division 1, （可选） 有限元分析,FE model 有限元模型,Advantage proven codes provide high reliability hydro test (1.5 x or 1.3 x pD) of each pressure casing provides high safety优点： 成熟的设计准则保证高可靠性 1.5或1.3倍工作压力的水压试验确保高安全性,
9、Pure Graphite Seal Rings up to 1000 bar up to 300 C纯石墨密封圈 最高压力 1000 bar 最高温度 300 C,Advantage 优点 low gasket seating load required 较小的密封垫预紧力 fully confined gasket 全内置的密封垫 metal to metal face 金属对金属表面接触,Static Seals静密封,Design Options 可选设计,Intermediate Take-off中间抽头,Advantage high flexiblilty of design优点：
10、设计的高灵活性,Intermediate take-off from 1st or 2nd stage, standardfrom 3rd stage,Possible第一级或第二级出口的中间抽头 （标准）第三级出口的中间抽头也是可以的,Impeller and Diffuser Design叶轮和导叶设计,Thick shrouds厚实的叶轮盖板,Continuous channel diffuser连续流道的导叶,Precision castings精密铸造的叶轮和导叶,AdvantagePrecision castings high efficiency small hydraulic
11、unbalanceThick shrouds high strength for high head natural frequency away from resonance thus avoiding shroud breakageContinuous channel diffuser high efficiency优点精密铸造的叶轮和导叶 高效率 较小的液力不平衡厚实的叶轮盖板 高强度适应高压头 自振频率远离激振频率避免叶轮开裂连续流道的导叶 高效率,Rotor Design转子设计,Shrunk on coupling,oil press fit, parallel stepped o
12、r taper fit油压套装式联轴器,Shrunk on balance drum,oil press fit油压套装式平衡鼓,Shrunk on thrust collar,oil press fit油压套装式推力盘,Shrink disk for mechanical seal sleeve机械密封套筒用紧缩环,Impellers are shrunk on, have keys for torque transmission and use split ring for thrust loading套装叶轮，用键传递扭矩，中分卡环承受轴向负荷,Advantage shrunk on p
13、arts allow for high rotor balancing quality shrunk on parts avoid fretting corrosion and minimize stress concentrations shrunk on parts avoid loose parts on shaft during operation and result in lower vibration优点 套装部件可保证较高的转子平衡质量 套装部件可避免腐蚀，最大程度地减小应力集中 套装部件可避免轴上部件运行时松动，转子振动较小,Shaft Seal With Single Me
14、chanical Seal机械密封,AdvantageMechanical seal high pump efficiencyAir barrier and thermo sleeve Insulates hot and cool area thus reduces thermal stratification avoids shaft bending due to thermal stratificationCooling jacket keeps elastomer seals cool during stand-still优点机械密封 较高的泵效率空气隙和隔热套 热侧和冷侧隔开，减少热分
15、层 避免了由于冷热不均而引起的热分层冷却套 静态时保持密封冷却,Air barrier空气间隔,Cooling jacket冷却套,Thermosleevewith air gap带气隙的隔热套,Mechanical seal机械密封,Hot (180C)热侧,cool (60C)冷侧,Mechanical Seals机械密封冷却,Air- filled gaps 空气间隔 Cooling water 冷却水 Seal circulation循环密封水,Shaft Seal With Fixed Throttled Bushing, Option 迷宫密封,Bleed-off for high
16、 suction pressures,without bleed-off for low suction pressures高吸入压力时排出；低吸入压力时无排出,Cold condensate injection冷凝水入口,Drain,Advantage simple design reliable temperature or differential temperature control avoid influx of cold water during stand still, hence avoiding thermally induced rotor bendingDisadvan
17、tage lower efficiency优点 设计简单可靠 温度和温差控制避免静态时冷水进入，从而避免转子的热弯曲缺点效率低,Axial Thrust Compensation 轴向推力补偿,Unbalanced pressure distribution on impellers叶轮不平衡力,Advantage easy and safe axial rotor setting because of the radial gap as compared to axial sealing gap as on balance disk or stepped balance drum most
18、reliable design for transient conditions (start up and run down, quick temperature changes, daily starts and stops)优点 与平衡盘比较，径向间隙的调整要比轴向间隙的调整方便和安全 瞬态 (启动和停机, 快速温度变化，日启停)时最为可靠,Axial hydraulic thrust compensation by balance drum (residual thrust taken by double acting thrust bearing)轴向推力由平衡鼓补偿（剩余推力由推力
19、轴承承担）,单平衡鼓与平衡鼓+平衡盘(双平衡鼓)的比较,s,S 1 mm流量泄漏及对效率的影响：与单平衡鼓相同转子的动力性：与单平衡鼓相同轴向调整要求：临界状态 (调整困难)损坏后的危险性：中等危险性运行安全性：当S 5mm时与单平衡鼓相同,单平衡鼓与平衡鼓+平衡盘(双平衡鼓)的比较,s,S 200m流量泄漏及对效率的影响：较 S1mm 及单平衡鼓好转子的动力性：由于压力被急剧降低，因此较 S 1mm 及单平衡鼓差轴向调整要求：处于高临界状态，调整要求非常高损坏后的危险性：高危险性，推力轴承将承受高载荷运行安全性：差,单平衡鼓与平衡鼓+平衡盘(双平衡鼓)的比较,S = 流量泄漏及对效率的影响：
20、同 S 1mm 转子的动力性：同 S 1mm轴向调整要求：无临界状态，无须调整损坏后的危险性：小，具有最高安全性运行安全性：最好，无端面间隙,Swirl brake消涡孔,Optimised labyrinth 优化的迷宫式密封,Radial grooves径向槽道,AdvantageOptimised labyrinth high efficiency good rotor dynamic behaviourRadial grooves increased radial stiffness reduced effect on rotor tilting good rotor dynamic
21、behaviourSwirl brake high rotor stability even with worn clearances优点优化的迷宫密封 效率高 改善转子动力学性能径向槽道 提高径向刚度 减少转子弯曲的影响改善转子动力学性能消涡孔 即使间隙磨损也可保持较高的转子稳定性,Design of Close Runing Clearance 运转间隙的设计,Journal and Thrust Bearing Arrangement 径向和推力轴承布置,AdvantageThrust bearing low power loss high safety against overload
22、Journal bearing high damping good rotor stabilityOil seal provides positive oil seal to atmosphere Split bearing housing allows bearing inspection without pump disassembly优点推力轴承 功耗低 高过负荷承载能力径向轴承 高阻尼 转子稳定性好油封 正压油封 轴向中分的轴承室 不需解体泵即可进行轴承检查,Double acting high capacity tilting pad thrust bearing, direct l
23、ubricated双作用高承载能力可倾瓦推力轴承,Non contacting oil seal (INPRO)非接触式油封,Four lobe fixed arc journal bearing(tilting pad bearings possible)四油叶径向轴承（也可为可倾瓦轴承）,Spilt bearing housing轴向中分的轴承室,Material of Main Components 主要部件材料,Recommended Instrumentation 推荐安装仪表,Shaft vibration轴振动,Shaft vibration轴振动,Bearing tempera
24、ture轴承温度,Bearing temperature轴承温度,Bearing housing vibration, possible轴承室振动 （可选）,Bearing housing vibration, possible轴承室振动 （可选）,Axial rotor position, possible轴向位移，（可选）,Balance water flow平衡水流量,Hydraulic jacks液压千斤顶,Advantage accurate tensioning to required pre-load fast cartridge change优点： 精确加载 芯包更换快速方便,
25、Air operated hydraulic oil pump气动液压油泵,Tightening of Delivery Cover Studs（）出口端盖螺栓的紧固（）,Tightening of Delivery Cover Studs（）出口端盖螺栓的紧固（）,Stage 1,Stage 2,Stage 3,Stage 4,Set Up Tensioning Tool安装拉伸工具,Tighten Stud Bolt拧紧端盖螺栓的螺母,Turn Nut拧紧螺母,Release Tensioning Tool拆除拉伸工具,Installation (Removal) of Cartridge
26、 芯包的拆装,Step 1Suspended and supported on rollers at DE步骤 1抽出芯包并在驱动端支撑在托辊上,Step 2Supported for re-rigging步骤 2支撑后换装吊具,Step 3Final installation步骤 3安装就位,AdvantageQuick and safe cartridge change优点：更换芯包安全迅速,Factory Acceptance Testing 工厂验收试验,Capacity up to 1000 MW 50 cold or hot hydraulic coupling testing试验能力 最大1000 MW 50容量 冷水或热水试验 液力偶合器性能试验,
