大型机组定压与滑压运行的经济性比较分类号郑州电力高等专科学校毕业设计（论文）题目大型机组定压与滑压运行的经济性比较并列英文题目Theeconomiccomparisonofconstantpressureandslidingpressureoperationforlargeunit系部动力工程系专业火电厂集控运行姓名郭登攀班级集控0901指导教师李丽萍职称副教授论文报告提交日期2012.06郑州电力高等专科学校大型机组定压与滑压运行的经济性比较摘要本课题先描述了2011年的电力供需形势，涉及到电厂的节能减排，然后引入了“等效热降理论”。重点讨论了用等效热降的方法给予定量分析和计算。然后用该方法对大型机组的定压调节和滑压调节进行定量分析，比较它们的经济性，确定了型机组在同负荷下滑压运行比定压运行时的经济性要高。关键词：定压运行滑压运行经济性比较AbstractThistopicdescribesthe2011yearofpowersupplyanddemandsituation,involvingpowerplantenergy-savingemissionreduction,andthenintroduces"equivalentheatdroptheory".Focusedonquantitativeanalysisandcalculationofequivalentheatdropmethod.Andthenusethismethodtoslidelargeunitsofpressureandpressureofaquantitativeanalysis,comparisonoftheireconomy,slidingpressureoperationdeterminesthetypeofunitinthesameloadthantheconstantpressureoftherunningoftheeconomytohigh.Keyword：ConstantpressureregulationSliding-pressureregulationOfeconomicRelatively大型机组定压与滑压运行的经济性比较目录一.前言..........................................................11.12011年电力供需形势.......................................11.2电厂节能理论与措施.......................................11.3本课题研究思路与意义.....................................3二.等效热降的理论基础............................................42.1等效热降的概念...........................................42.1.1概述................................................42.1.2等效热降的概念......................................52.1.3计算符号和公式的规定................................62.2抽汽等效热降.............................................82.3等效热降之间的关系......................................112.3.1疏水放流式加热器与其后相邻加热器之间的等效关系.....112.3.2汇集式加热器之间的等效热降关系.....................132.4等效热降的应用..........................................142.4.1内、外纯热量出入热力系统...........................162.4.2携带工质的内外热源进入热系统.......................162.4.3带工质的热量出系统.................................172.5再热机组的等效热降.......................................182.5.1概述...............................................182.5.2定热量抽汽等效热降.................................192.5.3定热量新蒸汽等效热降...............................202.5.4定热量等效热降应用特点.............................202.5.5变热量等效热降.....................................232.5.6等效热降的条件.....................................242.5.7等效热降应用的基本法则.............................24三.定压与滑压运行方式比较.......................................253.1定压运行.................................................253.2滑压运行.................................................263.2.1滑压运行的分类.....................................263.2.2滑压运行的特点.....................................27四.定压与滑压运行计算...........................................294.1定压运行计算.............................................304.1.1热力系统简捷计算...................................304.1.2机组的等效热降计算.................................334.2滑压运行计算.............................................
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