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说明进料量3000kg/h进料浓度0W/W出料浓度1W/W进料温度75℃加热蒸汽压强400kPa(A)末效冷凝器压强20kPa(A)加热蒸汽温度144℃一效二次蒸汽温度130℃二效二次蒸汽温度111℃三效二次蒸汽温度60℃一效二次蒸汽汽化潜热2176kJ/kg二效二次蒸汽汽化潜热2230kJ/kg三效二次蒸汽汽化潜热2355kJ/kg生蒸汽汽化潜热2139kJ/kg物料比热4.19kJ/(kg*℃)生蒸汽消耗量D1(kg/h)1292.51691350691350一效蒸发量W1(kg/h)952.81-238830-238830二效蒸发量W2(kg/h)1002.83-641070-641070三效蒸发量W3(kg/h)1044.363000.0000013000一效传热面积m245.71总传热系数1200二效传热面积m237.89总传热系数800三效传热面积m240.60总传热系数300面积附加15%余量公称面积加热管径(mm)加热管长(m)52.5752.57323.0043.5743.57323.0046.6946.69323.00蒸汽进口冷凝水进料口一效蒸发102.85DN40DN150二效蒸发121.60DN40DN150三效蒸发170.37DN40DN300循环进口循环出口进料口一效分离210.63DN15026.60二效分离295.10DN150DN40三效分离336.33DN300DN40加热管外径加热管壁厚加热管截面积流速322.500.0997484141.5分离器直径1.37m分离器高度2.47m尾凝器计算三效蒸发计算输入各效蒸发量计算查数据各效传热面积计算(三效蒸发废水K取1200~1500)说明二次蒸汽量(kg/h)1044.36(kg/h)二次蒸汽温度T160℃二次蒸汽出料温度T240℃二次蒸汽压强20kPa(A)二次蒸汽蒸发潜热2355kJ/kg循环水进水温度t130℃循环水出水温度t240℃对数平均温度差14.43℃温度效率P0.33温度相关因数R2.00对数平均温度差校正系数0.83查表平均温度差11.97面积附加15%余量公称面积加热管径(mm)加热管长(m)67.9567.95253.00循环水进口循环水出口气相进口液相出口119.75119.75336.3342.99说明进料量3000kg/h进料温度50℃出料温度75℃蒸汽冷凝水进温度144℃蒸汽冷凝水出温度85.97℃蒸汽冷凝水量1292.51kg/h面积附加15%余量公称面积加热管径(mm)加热管长(m)7.767.76321.50热源进口热源出口废水水进口废水水出口DN40DN4026.6026.60说明进料量3000kg/h进料温度30℃出料温度50℃蒸汽冷凝水进温度130℃蒸汽冷凝水出温度67.03℃蒸汽冷凝水量952.81kg/h输入二级预热器计算输入一级预热器计算输入面积附加15%余量公称面积加热管径(mm)加热管长(m)7.747.74321.50热源进口热源出口废水水进口废水水出口DN40DN4026.6026.60尾凝液量3000kg/h尾凝液温度T160℃尾凝液冷却温度T240℃循环水进水温度t130℃循环水出水温度t240℃循环水进口循环水进口凝液进口凝液出口DN40DN4042.9942.99尾凝液罐计算输入总蒸发量3000.00kg/h各效压降126.67kPa一效分离室压力273.33kPa(A)二效分离室压力146.67kPa(A)三效分离室压力20.00kPa(A)干盐量0.00kg水分3000.00kgW/(M2.℃)W/(M2.℃)W/(M2.℃)加热管数174.307.1213.2343.248144.486.4311.8743.248154.816.6812.3643.248出料口放空口210.63DN25生蒸汽密度2.1618二次蒸汽密度295.10DN25加热蒸汽密度1.52二次蒸汽密度336.33DN25加热蒸汽密度0.815二次蒸汽密度二次蒸汽出口放空口121.60DN25170.37DN25336.33DN25强循泵流量强循泵型号538.64FJX300200.13068第四步第三步操作压力(kPaA)对应饱和蒸汽密度(kg/m3)三效蒸发计算输出各效蒸发量计算各效传热面积计算(三效蒸发废水K取1200~1500)循环水用量60787.28kg/h换热面积59.08m2总传热系数1000W/(M2.℃)加热管数层数bte288.389.3017.6033.7537.5真空口真空抽气量(m3/h)43.4279.92热侧温差69.00℃冷测温差35.97℃对数平均温差判别0.92与0.1比较对数平均温差50.71℃数值平均温差52.49℃R2.32P0.27修正系数0.85查表对数平均温度差43.10℃总传热系数300.00W/(M2.℃)换热面积6.75m2加热管数层数bte51.483.636.2743.248热侧温差80.00℃冷测温差37.03℃对数平均温差判别1.16与0.1比较对数平均温差55.78℃数值平均温差58.51℃R3.15P0.20修正系数0.93查表对数平均温度差51.88℃第四步第一步输出二级预热器计算输出第二步一级预热器计算输出总传热系数200.00W/(M2.℃)换热面积6.73m2加热管数层数bte51.333.636.2543.248热侧温差20.00℃冷测温差10.00℃对数平均温差判别1.00与0.1比较对数平均温差14.43℃数值平均温差15.00℃R2.00P0.33修正系数0.92查表对数平均温度差13.27℃总传热系数500.00W/(M2.℃)换热面积10.52m2循环水用量6000kg/h循环水管径37.62mm选择外径45mm盘管长度74.47m盘管重量206.51KG液位计口放空口DN25X2DN25第五步第一步尾凝液罐计算输出624.51650565.47650586.576501.520.8150.131DDg635.26700DDg323.45350DDg322.91350绝对压强(kPa)温度(℃)汽化热(kJ/kg)蒸汽密度(kg/m3)1.06.32476.80.007731.512.52463.00.011332.017.02452.00.014862.520.92444.30.018363.023.52438.40.021793.526.12432.50.025234.028.72426.60.028674.530.82421.90.032055.032.42418.30.035376.035.62411.00.042007.038.82403.80.048648.041.32398.20.055149.043.32393.60.0615610.045.32388.90.0679815.053.52370.00.0995620.060.12354.90.1306830.066.52333.70.1909340.075.02312.20.2497550.081.22304.50.3079960.085.62293.90.3651470.089.92283.20.4222980.093.22275.30.4780790.096.42267.40.53384100.099.62259.50.58961120.0104.52246.80.69868140.0109.22234.40.80758160.0113.02224.20.82981180.0116.62214.31.02090200.0120.22204.61.12730250.0127.22185.41.39040300.0133.32168.11.65010350.0138.82152.31.90740400.0143.42138.52.16180说明进料量52300kg/h热侧温差18.23进料温度75℃冷测温差15.00出料温度81.768642℃对数平均温差判别0.22蒸汽冷凝水量35400kg/h对数平均温差16.56蒸汽冷凝水进温度100℃数值平均温差16.62蒸汽冷凝水出温度90℃R1.48P0.27修正系数0.95对数平均温度差15.74总传热系数300.00换热面积87.28说明进料量52300kg/h热侧温差59.00进料温度81.768642℃冷测温差62.23出料温度85℃对数平均温差判别(0.05)蒸汽消耗量331.04722kg/h对数平均温差60.60加热蒸汽温度144℃数值平均温差60.62生蒸汽汽化潜热2139kJ/kgR(617.39)P0.05修正系数0.95对数平均温度差57.57总传热系数300.00换热面积11.39输入输出一级预热器计算输入输出二级预热器计算℃℃与0.1比较℃℃查表℃W/(M2.℃)m2℃℃与0.1比较℃℃查表℃W/(M2.℃)m2输出一级预热器计算输出二级预热器计算说明二次蒸汽量(kg/h)100.00(kg/h)循环水用量5943.79二次蒸汽温度T1100℃换热面积5.33二次蒸汽出料温度T245℃总传热系数500二次蒸汽压强100kPa(A)二次蒸汽蒸发潜热2260kJ/kg循环水进水温度t130℃循环水出水温度t240℃对数平均温度差32.46℃温度效率P0.14温度相关因数R5.50对数平均温度差校正系数0.80查表平均温度差25.97尾凝器计算输入输出kg/hm2W/(M2.℃)尾凝器计算输出
本文标题:三效蒸发计算3t
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