1、大型机组定压与滑压运行的经济性比较 分类号 毕毕 业业 设设 计(论计(论 文)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 The economic comparison of constant pressure and sliding pressure operation for large unit 大型机组定压与滑压运行的经济性比较 摘要摘要 本课题先描述了本课题先描述了 20112011 年的电力供需形势, 涉及到电厂的节能减排, 然后引入了 “等年的电力供需形势, 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
2、算。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。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:关键词: 定压运行定压运行 滑压运行滑压运行 经济性经济性 比较比较 AbstractAbstract This topic describes the 2011 year of power supply and demand situation, This
3、topic describes the 2011 year of power supply and demand situation, involving power plant energyinvolving power plant energy- -saving emission reduction, and then introduces saving emission reduction, and then introduces “equiva“equivalent heat drop theory“. Focused on quantitative analysis and calc
4、ulation lent heat drop theory“. Focused on quantitative analysis and calculation of equivalent heat drop method. of equivalent heat drop method. And then use this method to slide large units of pressure and pressure of And then use this method to slide large units of pressure and pressure of a quant
5、itative analysis, comparison of their economy, sliding pressure a quantitative analysis, comparison of their economy, sliding pressure operaoperation determines the type of unit in the same load than the constant pressure tion determines the type of unit in the same load than the constant pressure o
6、f the running of the economy to high.of the running of the economy to high. KeywordKeyword:Constant pressure regulation SlidingConstant pressure regulation Sliding- -pressure regulation Of pressure regulation Of economic Reconomic Relativelyelatively 大型机组定压与滑压运行的经济性比较 目录目录 一.前言前言 1 1.1 2011 年电力供需形势1 1.2 电厂节能理论与措施 1 1.3 本课题研究思路与意义 3 二二. .等效热降的理论基础等效热降的理论基础4 2.1 等效热降的概念 4 2.1.1 概述 .4 2.1.2 等效热降的概念 .5 2.1.3 计算符号和公式的规定 .6 2.2 抽汽等效热降 8 2.3 等效热降之间的关系 .11 2.3.1 疏水放流式加热器与其后相