附录3-能量衡算书

国电中石化宁夏能源化工年产30万吨醋酸乙烯项目能量平衡书指导教师：钟秦、陈迁乔、丁杰、张舒乐 团队成员：代明萱、张铭甲、赵金燕、陈梦晴、孟亚寒 国电中石化宁夏能源化工年产30万吨醋酸乙烯项目 能量平衡书1.概述拟建一套国电中石化宁夏能源化工年产30万吨醋酸乙烯项目的工艺，在全工艺段中伴随着物料从一个体系或单元进入另一个体系或单元，在发生质量传递的同时也伴随着能量的消耗、释放和转化。其中的能量变换数量关系可以从能量衡算求得，对于新设计的车间，可以由此确定设备的热负荷。再根据设备的热负荷大小、所处理物料的性质及工艺要求选择恰当的设备。总之，通过下述能量衡算，可以为后续设计工作中提高热量的利用率，降低能耗提供主要依据。2.热量衡算原理工程依据化工设计中关于热量衡算的基本思想和要求，遵循基本规范与实际工艺相结合的原则，进行热量衡算书的编制。其中一个主要依据是热量平衡方程：其中，表示输入设备热量的总和；表示输出设备热量的总和；表示损失热量的总和。对于连续系统：其中，设备的热负荷；输入系统的机械能；离开设备的各物料焓之和；进入设备的各物料焓之和。在进行全厂热量衡算时，是以单元设备为基本单位，考虑由机械能转换、化学反应释放和单纯的物理变化带来的热量变化。最终对全工艺段进行系统级的热量平衡计算，进而用于指导节能降耗设计工作。3.热量衡算任务在进行合成醋酸乙烯并资源化利用装置的热量衡算中，主要通过定量计算完成下述基本任务：确定工艺单元中物料输送机械（如泵）所需要的功率，以便于进行设备的设计和选型； 确定精馏等单元操作中所需要的热量或冷量以及传递速率，计算换热设备的尺寸，确定加热剂和冷却剂的消耗量，为后续设计中比如供汽、供冷、供水等专业提供设备条件；确定为保持一定反应温度所需移除或者加入的热传递速率，指导反应器的设计和选型；提高热量内部集成度，充分利用余热，提高能量利用率，降低能耗；最终计算出总需求能量和能量的费用，并由此确定工艺过程在经济上的可行性。4.热量衡算4.1醋酸乙烯合成工段4.1.1 E0101 乙炔气预热器表4-1物流焓变计算表项目UnitsINOUT1-41-51-1417PhaseVapor PhaseVapor PhaseVapor PhaseVapor PhaseTemperatureC20.75286356120200123.6039495Pressurebar1.211.211.11.1Enthalpy FlowkW276870.6455282682.7622199993.3591194181.2424Mass Flowskg/hr115136.0034115136.0034152819.2228152819.2228表4-2热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error00476864.0046476864.004604.1.32E0102醋酸预热器表4-3物流焓变计算表项目UnitsINOUT1-101-6171-15PhaseLiquid PhaseLiquid PhaseVapor PhaseVapor PhaseTemperatureC30.66519313120.1582887123.603949599.4785933Pressurebar1.21.21.11.1Enthalpy FlowkW-80818.58248-79075.42891194181.2424192438.0889Mass Flowskg/hr37683.1997437683.19974152819.2228152819.2228表4-4物流焓变计算表W（KW）Q（KW）HIN（KW）HOUT（KW）Error00113362.66113362.662.57E-154.1.3 E0103混合气预热器表4-5热负荷表WQHeat Duty（KW）03524.551表4-6物流焓变计算表项目UnitsINOUT1-111-12PhaseVapor PhaseVapor PhaseTemperatureC93.1860191140Pressurebar1.11Enthalpy FlowkW205806.062209330.6125Mass Flowskg/hr152819.229152819.2293表4-7热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error03524.551205806.062209330.612504.1.4 R0101反应器表4-8热负荷表WQHeat Duty（KW）0-8682.98表4-9物流焓变计算表项目UnitsINOUT1-121-13PhaseVapor PhaseVapor PhaseTemperatureC140200Pressurebar11Enthalpy FlowkW209330.613200647.6359Mass Flowskg/hr152819.229152819.2293表4-10热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-8682.98209330.613200647.635904.1.7 压缩机C0101表4-11热负荷表WQHeat Duty（KW）6608.4410表4-12物流焓变计算表项目UnitsINOUT1-151-16PhaseVapor PhaseVapor PhaseTemperatureC68160.525677Pressurebar0.93Enthalpy FlowkW190246.835196855.2765Mass Flowskg/hr152819.229152819.2293表4-13热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error6608.4410190246.835196855.27650.033574.2醋酸乙烯粗分工段4.2.1 换热器E0201表4-14热负荷表WQHeat Duty（KW）0-6798.69表4-15物流焓变计算表项目UnitsINOUT1-162-2PhaseVapor PhaseVapor PhaseTemperatureC160.52567767.2008045Pressurebar33Enthalpy FlowkW196855.276190056.5711Mass Flowskg/hr152819.229152819.2666表4-16热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-6798.69196855.276190056.571104.2.2 换热器B3表4-17热负荷表WQHeat Duty（KW）016468.71表4-18物流焓变计算表项目UnitsINOUT142-4PhaseLiquid PhaseLiquid PhaseTemperatureC73.7570875142Pressurebar33Enthalpy FlowkW-319785.16-303316.449Mass Flowskg/hr413935.317413935.3172表4-19热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error016468.71-319785.16-303316.44904.2.3 换热器E0202表4-20热负荷表WQHeat Duty（KW）0-6932.82表4-21物流焓变计算表项目UnitsINOUT2-142-15PhaseVapor PhaseTemperatureC129.90122940Pressurebar1.21.2Enthalpy FlowkW-52262.574-59195.3974Mass Flowskg/hr52326.330952326.33094表4-22热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-6932.82-52262.574-59195.397404.2.4 换热器B4表4-23热负荷表WQHeat Duty（KW）0-16468.7表4-24物流焓变计算表项目UnitsINOUT2-242-22PhaseLiquid PhaseLiquid PhaseTemperatureC159.81307977.65393277Pressurebar33Enthalpy FlowkW-241686.77-258155.483Mass Flowskg/hr361337.414361337.4143表4-25热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-16468.7-241686.77-258155.48304.2.5 换热器E0204表4-26热负荷表WQHeat Duty（KW）0-9138.27表4-27物流焓变计算表项目UnitsINOUT2-142-15PhaseLiquid PhaseLiquid PhaseTemperatureC77.653932825Pressurebar33Enthalpy FlowkW-258155.48-267293.753Mass Flowskg/hr361337.414361337.4133表4-28热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-9138.27-258155.48-267293.75304.2.6 塔T0203表4-29热负荷表CondenserReboilerHeat Duty（KW）-27598.90236931.99表4-30物流焓变计算表项目UnitsINOUT2-42-1319PhaseLiquid PhaseVapor PhaseLiquid PhaseTemperatureC14246.31236038169.1630338Pressurebar30.20.4Enthalpy FlowkW-303316.45-53771.1459-240212.214Mass Flowskg/hr413935.31752326.33094361608.9863表4-31热量平衡计算一览表Condenser（KW）Reboiler（KW）HIN（KW）HOUT（KW）Error-27598.936931.99-303316.45-293983.360.20724.2.7 压缩机C0201表4-32热负荷表WQHeat Duty（KW）1508.571970表4-33物流焓变计算表项目UnitsINOUT2-132-14PhaseVapor PhaseVapor PhaseTemperatureC46.3123604129.9012292Pressurebar0.21.2Enthalpy FlowkW-53771.146-52262.5739Mass Flowskg/hr52326.330952326.33094表4-34热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error1508.5720-53771.146-52262.57390.028864.2.8 压缩机C0202表4-35热负荷表WQHeat Duty（KW）25.7304920表4-36物流焓变计算表项目UnitsINOUT2-191-1PhaseVapor PhaseVapor PhaseTemperatureC20.899114537.78637542Pressurebar11.25Enthalpy FlowkW7238.686737264.41722Mass Flowskg/hr3206.306843206.306838表4-37热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error25.7304907238.686737264.417220.003544.3醋酸乙烯精制工段4.3.1 换热器E0305表4-38物流焓变计算表项目UnitsINOUT2-203-1123-3PhaseLiquid PhaseLiquid PhaseLiquid PhaseLiquid PhaseTemperatureC42.4335427579123.444983344.04778527Pressurebar1.21.21.21.2Enthalpy FlowkW-114678.8103-113285.3789-70319.9376-71713.36897Mass Flowskg/hr71652.6781671652.6781633672.0806633672.08066表4-39热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error00-184998.7479-184998.74793.78E-154.3.2 换热器E0303表4-40热负荷表WQHeat Duty（KW）0500.25表4-41物流焓变计算表项目UnitsINOUT3-133-14PhaseTemperatureC77.093613777.14220214Pressurebar1.21.2Enthalpy FlowkW-117159.89-116659.639Mass Flowskg/hr110894.42110894.4205表4-42热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0500.25-117159.89-116659.63904.3.3 换热器E0304表4-43热负荷表WQHeat Duty（KW）0-1641.88表4-44物流焓变计算表项目UnitsINOUT3-103-11PhaseTemperatureC86.487418238.50752415Pressurebar51Enthalpy FlowkW-59907.279-61549.159Mass Flowskg/hr43802.890143802.89011表4-45热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-1641.88-59907.279-61549.15904.3.4 换热器B6表4-46热负荷表WQHeat Duty（KW）0-71.2503表4-47物流焓变计算表项目UnitsINOUT15112PhaseVapor PhaseLiquid PhaseTemperatureC63.228415140Pressurebar11Enthalpy FlowkW-539.92068-611.171211Mass Flowskg/hr430.908538430.9086943表4-48热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-71.2503-539.92068-611.17121104.3.5 换热器E0302 表4-49物流焓变计算表INOUT3-83-93-103-13PhaseLiquid PhaseVapor Phase气液两相气液两相TemperatureC74.3475164148.267217186.4874181877.09361366Pressurebar1.2551.2Enthalpy FlowkW-124651.07-52416.099-59907.279-117159.8895Mass Flowskg/hr110894.4243802.8901143802.89011110894.4205表4-50热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error00-177067.168-177067.168404.3.6压缩机C0301表4-51热负荷表WQHeat Duty（KW）1495.046030表4-52物流焓变计算表项目UnitsINOUT3-73-9PhaseVapor PhaseVapor PhaseTemperatureC52.2744155148.2672171Pressurebar15Enthalpy FlowkW-53911.145-52416.099Mass Flowskg/hr43802.890143802.89011表4-53热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error1495.0460-53911.145-52416.0990.02854.3.7压缩机C0302表4-54热负荷表WQHeat Duty（KW）3.604877730表4-55物流焓变计算表项目UnitsINOUT3-123-11PhaseVapor PhaseVapor PhaseTemperatureC38.507524149.69427468Pressurebar11.2Enthalpy FlowkW-1084.9045-1081.29967Mass Flowskg/hr956.370276956.3702765表4-56热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error3.6048780-1084.9045-1081.299670.0033384.3.8 泵 P0301表4-57热负荷表WQHeat Duty（KW）0.393822450表4-58物流焓变计算表项目UnitsINOUT3-23-6PhaseLiquid PhaseLiquid PhaseTemperatureC66.894973366.90787197Pressurebar11.2Enthalpy FlowkW-42533.554-42533.1603Mass Flowskg/hr37980.610837980.61083表4-59热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0.3938220-42533.554-42533.160304.3.9 泵 P0302表4-60热负荷表WQHeat Duty（KW）0.008220640表4-61物流焓变计算表项目UnitsINOUT3-213-23PhaseLiquid PhaseLiquid PhaseTemperatureC45.287572945.31928723Pressurebar11.2Enthalpy FlowkW-461.86384-461.85562Mass Flowskg/hr396.045431396.04543114.3.10 塔 T0303表4-62热负荷表CondenserReboilerHeat Duty（KW）-209.0234248.53598表4-63物流焓变计算表项目UnitsINOUT3-173-183-19PhaseVapor PhaseLiquid PhaseLiquid PhaseTemperatureC49.694274766.5002895220.10005016Pressurebar1.21.21Enthalpy FlowkW-1081.2997-440.729881-801.057217Mass Flowskg/hr956.370276296.8631068659.5071697表4-64热量平衡计算一览表Condenser（KW）Reboiler（KW）HIN（KW）HOUT（KW）Error-209.02348.53598-1081.2997-1241.78710.404784.3.11 塔 T0304表4-65热负荷表WQHeat Duty（KW）070.22276表4-66物流焓变计算表项目UnitsINOUT3-183-233-2515PhaseLiquid PhaseLiquid PhaseLiquid PhaseVapor PhaseTemperatureC66.500289545.3192872375.8339713163.22841512Pressurebar1.21.21.21Enthalpy FlowkW-440.72988-461.85562-292.442067-539.9206761Mass Flowskg/hr296.863107396.0454311262430.9085379表4-67热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error070.2227587-902.585501-832.362742704.4副产物分离工段4.4.1 换热器 E0401表4-68热负荷表WQHeat Duty（KW）0-24.2752表4-69物流焓变计算表项目UnitsINOUT4-44-5PhaseLiquid PhaseLiquid PhaseTemperatureC45.051066320Pressurebar1.251.25Enthalpy FlowkW-3765.4158-3789.69096Mass Flowskg/hr858.916843858.916843表4-70热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-24.2752-3765.4158-3789.6909604.4.2 换热器 E0402表4-71热负荷表WQHeat Duty（KW）0-45.7659表4-72物流焓变计算表项目UnitsINOUT4-74-8PhaseVapor PhaseLiquid PhaseTemperatureC89.915865183.56467858Pressurebar0.10.1Enthalpy FlowkW-618.07738-663.843271Mass Flowskg/hr400.374011400.3740105表4-73热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0-45.7659-618.07738-663.84327104.4.3 泵 P0401表4-74热负荷表WQHeat Duty（KW）0.078751990表4-75物流焓变计算表项目UnitsINOUT4-24-4PhaseLiquid PhaseLiquid PhaseTemperatureC4545.05106632Pressurebar0.31.25Enthalpy FlowkW-3765.4945-3765.41577Mass Flowskg/hr858.916843858.916843表4-76热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0.0787520-3765.4945-3765.4157704.4.4 泵 P0402表4-77热负荷表WQHeat Duty（KW）0.191545050表4-78物流焓变计算表项目UnitsINOUT4-74-8PhaseVapor PhaseLiquid PhaseTemperatureC89.915865183.56467858Pressurebar0.10.1Enthalpy FlowkW-618.07738-663.843271Mass Flowskg/hr400.374011400.3740105表4-79热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error0.1915450-618.07738-663.8432710.068944.4.5 泵 P0403表4-80负荷表WQHeat Duty（KW）36.92287810表4-81物流焓变计算表项目UnitsINOUT4-142-24PhaseLiquid PhaseTemperatureC159.707676159.813079Pressurebar0.33Enthalpy FlowkW-241723.7-241686.773Mass Flowskg/hr361337.414361337.4143表4-82热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error36.922880-241723.7-241686.7730.00015274.4.6 泵 P0404表4-83热负荷表WQHeat Duty（KW）49.73598350表4-84物流焓变计算表项目UnitsINOUT192-11PhaseLiquid PhaseLiquid PhaseTemperatureC169.163034169.2980652Pressurebar0.44Enthalpy FlowkW-240212.21-240162.478Mass Flowskg/hr361608.986361608.9863表4-85热量平衡计算一览表W（KW）Q（KW）HIN（KW）HOUT（KW）Error49.735980-240212.21-240162.4780.0002074.4.7 塔 T0401表4-86热负荷表CondenserReboilerHeat Duty（KW）-617.33667657.5966表4-87物流焓变计算表项目UnitsINOUT2-94-14-24-3PhaseLiquid PhaseVapor PhaseLiquid PhaseLiquid PhaseTemperatureC20.0672114