1、 毕业设计(论文)毕业设计(论文) 热水供热系统的集中调节 学生姓名: 学 号: 专业班级: 指导教师: 2008 年 6 月 18 日 摘 要 供热系统的运行调节对系统的能耗有重大的影响,也就是说,科学的 运行调节直接关系到供热系统节能的实现。本文研究的主要问题是集中供 热系统的运行调节。 论文针对集中供热系统的运行调节问题,通过理论分析,讨论了直接 连接和间接连接系统的多种运行调节,并对各种调节方式做出分析与比较。 本文重点研究和分析了 3 种直接连接的分阶段调节,给出调节公式, 并讨论阶段点的划分原则。同时利用算例分析了在各种分阶段调节方式下, 室外温度变化时,网路的供回水温度及相对流量
2、比的变化情况。 文章还介绍了 4 种可实现的间接连接系统一、二级管网调节方式的组 合调节公式。利用算例分析了在室外温度变化时,各调节方式组合一、二 级管网参数的变化情况。 关键词关键词:集中供热;质调节;量调节;直接连接;间接连接 Abstract The adjusting can have an important effect on the running of the heating system. So doing adjusting well is the key of energy conservation of the heating system. This paper mo
3、stly introduces the adjusting of centralized heating system. This paper researches the running adjusting with the method of theoretic analyze, mainly studies the adjusting measures of direct heating systems and indirect heating systems, and compares these adjusting measures. It mainly researches and
4、 analyzes three measures of stage adjusting. Give the adjusting expressions and the stage division principle. Use an example to calculate the supplying and returning water temperatures and the mass rates under different outdoor temperatures. It also introduces adjusting expressions of four doable combinations. Use an example and analyze different parameters under different outdoor temperature when use different regulating measures. Keywords: centralized heating system; mass regulating; quant