1、I 论文题目：烧结余热发电系统双压循环热力参数优化 摘 要 目前,烧结余热发电技术已有应用,但现有的技术还存在余热烟气参数选取, 热力系统受热面配置方案及主蒸汽参数选取不尽合理等问题, 造成发电机组的 运行负荷与额定负荷相差较大。 鉴于上述现状, 开展烧结余热电站热力系统分析 及优化研究,具有非常重要的意义。论文简要介绍了烧结余热发电技术及系统流 程,并在烧结余热发电系统热力参数优化过程中提出了以余热有效利用率来评价 烧结余热发电系统的性能。 通过对不同工况下烧结余热发电系统的发电量进行理 论计算和比较, 同时考虑生产设备及运行限制因素, 对烧结余热烟气参数进行 了优化选取。 通过建立烧结余热
2、发电双压系统的热力模型, 计算分析了主蒸汽温 度、 主蒸汽压力、低压蒸汽温度和压力及其选取对系统余热有效利用率的影响 和变化规律, 为烧结余热发电系统的优化设计与运行提供了较科学的依据。 II 关键词: 烧结；余热发电；余热有效利用率；热力系统；优化 河北联合大学 毕业论文摘要 II ABSTRACT At present, the sintering cogeneration technology has been applied, but the existing technology to the waste heat of flue gas parameters selected, t
3、he thermal heating surface configuration program and the main steam parameters to select the quite reasonable question, causing the difference between running load and rated load of the generator setlarger. In view of the above-mentioned current situation, to carry out sintering heat power plant the
4、rmal system analysis and optimization study has very important significance.Sintering heat cogeneration system configuration level of the parameters of the economy of power systems, stability and security. The sintering waste heat power generation technology and its system process flow were introduc
5、ed in the paper and the effective waste heat utilization rate was proposed to evaluate the performance of the system Throught heoretical calculation and comparison of power capacity of sintering waste heat generation system under different working conditions, and in consideration of production equip
6、ment and running limitation factors, the sintering waste gas parameters were selected optimally A thermodynamic model of dual pressure system of sintering waste heat generation was built, and the main steam temperature and its pressure, the low steam temper ature and its pressure, the effect of selection of these parameters on the waste heat utilization rate and variation rules were all calculated and analyzed, which can provide scientific basis for optimal design and operation of sintering wast
