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2009届毕业设计说明书基于DCS的温度控制系统的设计与应用院、部：电气与信息工程学院学生姓名：指导教师：职称专业：自动化班级：完成时间：2013年5月摘要温度是工业生产中常见的工艺参数之一，任何物理变化和化学反应过程都与温度密切相关。在科学研究和生产实践的诸多领域中，温度控制占有着极为重要的地位，特别是在冶金、化工、建材、食品、机械、石油等工业中，具有举足轻重的作用。对于不同生产情况和工艺要求下的温度控制，所采用的加热方式，燃料，控制方案也有所不同。DCS具有通用性强、系统组态灵活、控制功能完善、数据处理方便、显示操作集中、人机界面友好、安装简单规范、调试方便、运行安全可靠的特点。它能够适应工业生产过程的各种需要，进一步提高生产自动化水平和管理水平，提高劳动生产率，保证生产安全。本文介绍了DCS的组态、下装及控制原理，完成了DCS温度定值控制系统的设计，通过操作员站、DCS分布式过程控制系统、THJ-3型高级过程控制对象系统实验装置，对温度进行定值控制，并对结果进行了讨论和总结。这次设计可以使我了解DCS的控制原理和使用方法，为以后的学习和工作奠定基础。关键词：DCS；温度定值控制；组态ABSTRACTTemperatureisthecommonindustrialproductionprocessparameter,anyphysicalchangeandchemicalreactionprocesscloselyisrelatedwiththetemperature.Inscientificresearchandproductionpracticeinmanyfieldsoftemperaturecontrolintheoccupiedanextremelyimportantpositionespeciallyinthemetallurgical,chemical,buildingmaterials,food,machinery,petroleumindustry,whichplayadecisiverolerole.Fordifferentproductionconditionsandtechnologicalrequirementsoftemperaturecontrol,thewayofheating,fuel,controlschemeisalsodifferent.DCShavestronggenerality,flexiblesystemconfiguration,controlfunctionconcentratedoperationoftheperfect,convenientdataprocessing,display,man-machineinterfacefriendly,simpleinstallation,convenientdebuggingandrunningcharacteristicsofsafeandreliable.Itisabletomeettheneedsofindustrialproductionprocessofallkinds,tofurtherimprovethelevelofproductionautomationandmanagementlevel,improvelaborproductivity,ensuresafeproduction.ThispaperintroducesthecurrentsituationofthedevelopmentoftheDCScontrolsystem,allkindsofTemperaturecharacteristics,DCSconfiguration,removetheatricalmakeupandcostumeandcontrolprinciple,completedtheDCSrealizeTemperaturesettingvaluecontrolsystemexperimentdevelopment,throughtheoperatorsstand,DCSdistributedprocesscontrolsystem,THJ-3typeofadvancedprocesscontrolobjectsystemexperimentdevicefortheTemperatureinfixedvaluecontrol,theexperimentalresultsarediscussedandsummarizedinthispaper.ThisexperimentcanmakeIunderstandtheDCScontrolprincipleandmethodofuse,forthefuturestudyandworklaythefoundation.Keywords:DCS；Temperaturesettingvaluecontrol；Theconfiguration目录1绪论····································································································12系统设计方案························································································32.1任务和要求····················································································32.2设计方案和工作原理········································································32.1.1设计方案················································································32.2.2PID原理和特点·······································································32.2.3PID控制参数整定方法······························································43系统硬件设计························································································63.1控制对象·······················································································63.1.1THJ-3过程装置简介·································································63.1.2各模块的功能介绍···································································73.2.控制系统·······················································································83.2.1MACS系统简介·····································································83.2.2各模块的介绍··········································································94系统软件设计······················································································114.1MACS系统软件介绍······································································114.2MACSV组态················································································114.2.1建立工程··············································································114.2.2设备组态··············································································144.2.3服务器算法组态····································································174.2.4控制器算法组态····································································174.2.5图形组态··············································································185系统调试····························································································215.1调试步骤····················································································215.2调试结果····················································································226结束语·······························································································29参考文献·······························································································30致谢··································································································3111绪论过程控制是自动化的重要分支，其应用范围覆盖石油、化工、制药、生物、医疗、水利、电力、冶金、轻工、建材、环境等众多的领域，在国民经济中占有极其重要的地位。无论是在现代复杂工业生产过程中还是在传统生产过程的技术改造中，过程控制技术对于提高劳动生产率、保证产品质量、改善劳动条件以及保护生态环境、优化技术经济指标等方面都起着非常重要的作用。过程控制的主要任务是对生产过程中的有关参数(温度、压力、流量、物位、成分、湿度、PH值和物性等)进行控制，使其保持恒定或按一定规律变化，在保证产品质量和生产安全的前提下，是连续型生产过程自动的进行下去。实际的生产过程千变万化，要解决生产过程的各种控制问题必须采用有针对性的特殊方法与途径。这就是过程控制要研究和解决的问题。温度是一个描述物体物理特性的冷热程度的物理量，但是对于工业生产、日常生活过程，它却有极其很重要的作