汽轮机详细设计参数

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1、7.0.0a)STEAM TURBINEMaximum continuous rating of turbine (MCR)汽轮机汽轮机最大连续蒸发量MW150 MW at generator terminals在发电机接线头为150MWb)Generation during valve wide open (VWO) condition阀门全开时的出力MW+ 5% on TMCR Generator terminals高于TMCR工况5%c)Live steam pressure at turbine inlet汽轮机入口流通蒸汽压力bar(a)By Bidder由投标人填写d)Live s

2、team temperature at turbine inlet汽轮机入口流通蒸汽温度By Bidder由投标人填写e)Hot reheat temperature at turbine inlet汽轮机入口再热热段温度By Bidder由投标人填写f)Permissible deviations of live steam pressure and live steam temperature流通蒸汽压力和温度的允许偏差-According to IEC Recommendations, (The latest edition.)按照IEC标准(最新版本)g)Cooling water t

3、emperature at condenser inlet冷凝器入口处的冷却水温度33h)Temperature rise of cooling water in condenser at TMCR of turbine当TMCR工况下冷却水在冷凝器中的温升10i)Maximum cooling water velocity in condenser tubes with 10% blocked tubes10%堵塞情况下凝汽器管中的最小冷却水速率m/s2.2j)Minimum cooling water velocity in condenser tubes凝汽器管中的最小冷却水速率m/sa

4、ccording to requirement of sponge ball equipment按照胶球设备的必要条件k)Speed of turbine rotor汽轮机转子转速rpm3000l)Frequency deviations at Maximum Continuous Rating最大连续出力时的频率偏移47.5 Hz to 51.5 HzSr. No. 8.0Description Condenser冷凝器描述UnitData数据Type类型Horizontal Surface type divided water box construction with single or

5、 two pass design, integral air cooling section and steam inlet at the top or side.水平表面式、有一个或者二个通道的分水室结构、一体的空气冷却区、蒸汽进口在顶部或侧面Surface area表面面积10% over & above the designed surface area超过设计表面积的或10%Temperature rise温升oC10 oCDesign Heat Load设计热负荷Turbine VWO with 3% make-up and normal condenser vacuum.汽轮机阀门

6、全开和正常冷凝器真空Head Loss through condenser通过冷凝器的压头损失6 m WC6m水柱的压力CW velocity冷却水流速1.6 m/s to 2.2 m/s1.6 m/s to到2.2 m/sMax. oxygen in condensate冷凝器内最大含氧量0.015 cc per litre for 50% to 100% unit load and 0.03cc per litre for loads below 50%50% 至100%机组负荷时每公升含0.015 cc,机组负荷低于50%时每公升含0.03ccCooling water temperat

7、ure at inlet进口冷却水温度33 deg CMax. Cooling water temperature at inlet (design)进口冷却水最大温度(设计)36 deg CCooling media冷却介质Clarified water净化水Cooling circuit冷却回路Open recirculating system with Induced draft cooling towers.有阴风冷却塔的开式循环系统Hot well storage capacity热井存储能力Min. 3 min最少3分钟的供应能力Condenser shell design pre

8、ssure凝汽器外壳设计压力760 mm Hg vacuum & suitable for an emergency internal pressure of 1.08 bar (g) and Full Vacuum760 mm汞柱真空&适用于1.08 bar (g)的紧急内部压力和全真空Codes /standards规范/标准Design, manufacture & testing as per the latest HEI standards设计、制造和测试按照最新HEI标准Material of construction结构材质 1) Shell外壳Mild steel (Min.

9、wall thickness 18 mm)低碳钢(最小壁厚18mm)Sr. No.DescriptionUnitData2) Tubes管子Welded stainless steel type conforming to ASTM A-249, TP304不锈钢焊接型遵照ASTM A-249, TP3043) Water box & covers水箱&盖子Mild steel低碳钢4) Support plates支撑板Mild steel低碳钢9.0.0Condensate Extraction Pumps(CEPs)凝泵Number of pumps泵的数量Nos3 x 50%Type类

10、型Vertical, multistage, Cannister, centrifugal diffuser type.垂直、多级、碳罐、离心式Drive驱动器Vertical constant speed squirrel cage induction motor.垂直恒速鼠笼式电动机Design capacity of the pump泵的设计容量kg/s0.5 X maximum condensate flow corresponding to VWO and 3% make-up.0.5x最大凝结水流量与阀门全开补水3%一致Margin on Design capacity设计容量裕度

11、%15% on above15%以上TDH developedbarMaximum deaerator operating pressure + static head & pressure drop under maximum operating condition除氧器最大操作压力+静压头&压降低于最大操作条件Margin on Design Head设计压头裕度%10 %10.0Vacuum Pumps 真空泵No. of pumps 泵数量2x100%Capacity容量Pumps shall be sized as per latest HEI requirements. Capac

12、ity of each pump in free dry air at standard condition with condenser operating at design pressure of 1 inch (25.4 mm) of Hg (abs) and sub-cooled to 4.170C below temperaturecorresponding to absolute suction pressure shall not be less than 30 scfm (51 m3 per hour) under standard condition (i.e 760 mm

13、 of Hg (abs) and 21.10C).泵的尺寸应依照最新HEI标准。每个泵的容量在标准条件下释放干燥的空气,冷凝器的设计压力为1英寸(25.4mm)汞柱和冷却到4.17摄氏度以下。相应的,绝对负压不得少于30scfm(51立方米每小时)在标准状态下(如下760毫米的汞(abs)和21.10 C)。Sr. No.DescriptionUnitDataType类型Continuous duty single/ two stage pumps liquid ring type sized as per pumps applicable requirements of latest HEI

14、 standards.按照最新HEI标准适用规范的连续负载单/两级泵液环型。11.0Condensate Polishing Unit凝结水精处理装置Capacity容量2x50%11.1Deaerator除氧器Type类型Either spray cum tray type or spray type喷洒和托盘型或喷洒型De-aerating capability除氧容量ppb5ppbMode of operation of deaerator for feed water system给水系统除氧器运行模式-Variable pressure with fixed minimum pressure有固定最小压力的变压Storage Capacity of feed water tank for feed water system at 100% BMCR between minimu

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