我国热网的现状及供热节能的对策.pdfVIP

第22卷第3期 制冷与空调 Vlo1．22 No．3 2008年6月 Refrigeration and Air Conditioning June 2008．28~30 文章编号：1671。6612(2008)03—028—03 我国热网的现状及供热节能的对策 魏 兵 李 丽 (华北电力大学动力3-程系 保定 071003) 【摘 要】 分析了我国集中供热管网当前的现状和热网运行能耗高及热利用效率低的原因，可知：锅炉热效 率低、供热运行参数不合要求、采用 “大流量，小温差”的运行方式、建筑保温方而的不足以及供 热参数随气候的变化而调整不及时等是能耗高的主要原因。为更好地节省能源和保护环境，供热 改革势在必行。讨论了分户计量和按热量收费等改革问题，分析了热源、管网运行调节、供热参 数设定和管网改造等方面因素，并给出了相应的对策，以求取得低能耗和高效率的系统。 【关键词】 热水供热系统；系统运行；分户计量 中图分类号 TU833 文献标识码 B Actualities of Central Heating Systems and Countermeasures of System Energy Conselwation in China WeiBing LiLi (School ofEnergy and Power Engineering,North China Electric Power University,Baoding 071003，Hebei) [Abstract]Analyze the existing conditions ofcentral heating systems and the main reasons ofhigh operating energy consumption and low heating efficiency in China．The low heating efficiency ofboilers，the unreasonable operating parameters，the operating mode of“large circulationflowratewith smalltemperature difference”，the deficiency ofthe constmaionthermalinsulationandthe untimely system adjustment are the main reasons．In order to save the energy and protect the environment,the reform ofheating systems is imperative under the situation．In this paper,the problems ofthe household heat metering and the charge system according to the heat capacity consumption are discussed，the factors ofthe heat sources，the operational adjustment ofpipe network,the enactm ent ofheating system parameters and the rebuilding ofpipe network are analyzed，and the corresponding countermeasures are presented,in an attempt to achieve the results of lower energy consumption and higher efficiency． [Keywords] hot water heating system；system operation；househol