摘要
给出分布式供热系统单热源枝状各阶段系统功率的计算公式,并总结给出分布式相对于传统系统的节能率计算公式。结合实际工程案例,分析讨论计算不同热用户负荷分布情况,不同管段平均经济比摩阻对一级泵匹配方案的影响,对于分布式循环泵供热系统,负荷集中区域与零压差点位置一致时,该区域一级泵功率增长幅度较大,降低管段经济比摩阻可以起到提高系统稳定性和节能性的效果,但影响效果不佳。
The calculation formula of the power of each stage of the single heat source is given, and the formula of the energy saving rate of the distributed system is given. Combination the actual project case, analysis and calculation of heating load distribution, pipe average economic specific frictional resistance matching scheme effect on a pump for distributed circulating pump heating system. The load concentration area and the zero pressure difference position, The regional first - class pump power growth rate is larger, reduce the pipe section economic specific frictional resistance can improve the stability of the system and the energy saving effect, but the effect is poor.
作者
曾德军
刘学来
李永安
ZENG Dejun LIU Xuelai LI Yongan(College of Thermal Engi. ,Shandong Jianzhu Univ. , Jinan 250101, China)
出处
《低温建筑技术》
2017年第9期133-136,共4页
Low Temperature Architecture Technology
基金
2012年山东建筑大学博士基金(XNBS1221)
关键词
循环水泵
零压差点
负荷分布
比摩阻
节能率
circulating water pump
zero pressure difference
load distribution
specific friction resistance
energy saving rate
