热水供热管网最佳经济比摩阻研究与分析

Study on influencing factors and analysis of optimal economic specific frictional resistance of hot water heating pipe network

以供热管网的费用年值最小为优化目标建立了经济比摩阻数学模型,通过优化得到了经济比摩阻、经济管径及经济流速的计算方法.计算了典型供热规模的经济比摩阻及各种因素对经济比摩阻的影响,经济比摩阻与供热规模成反比,实际的经济比摩阻与传统的推荐范围不同.

The mathematical model of economic specific frictional resistance was established by using the minimum annual cost of heating pipe as the optimization objective and the calculation method of the economic specific frictional resistance,the economic pipe diameter and the economic flow rate were obtained. The typical heat scale economic specific frictional resistance and various kinds of factors of economic specific frictional resistance were calculated. The results showed that the economic specific frictional resistance was inversely proportional to the scale of the heat scale,and the actual economic specific frictional resistance was different with the traditional range recommended.