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近年来,我国的供热方式逐渐由小片分散趋向于区域集中供热,并取得了明显的节能效益。区域供热尽管优于分散供热,但能否取得最佳技术经济效益,还受众多因素的影响。据热力学原理,可以建立一个包含诸影响因素的系统能量方程,由此可分析影响系统效率的一些主要因素,找出系统节能的基本途径。本文仅就区域热水供热系统(简称供热系统)加以讨论。
In recent years, China’s heating methods have gradually spread from small pieces to regional centralized heating, and have achieved significant energy-saving benefits. Although district heating is better than dispersed heating, whether it can achieve the best technical and economic benefits is also affected by many factors. According to the principle of thermodynamics, a system energy equation containing various influencing factors can be established. From this, some major factors that affect system efficiency can be analyzed to find out the basic ways for system energy saving. This article only discusses the regional hot water heating system (abbreviated as heating system).