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利用热泵技术为建筑物供暖制冷,具有巨大的经济与环保效益。为了降低热泵系统输送能耗,建立了输送距离界限模型和输送能耗比例模型。综合考虑系统的运行费与初投资,在管材价格、安装价格一定的条件下,对传统比摩阻计算式进行了经济优化,得到了适用于热泵系统的经济比摩阻范围(40~80Pa/m),该值较传统经济比摩阻取值偏小,以此经济比摩阻可确定水源输送距离界限(1 200~2 500m),并据此指导输配管网设计,以降低和控制热泵系统输送能耗比例(10%~20%)。
The use of heat pump technology for building heating and cooling, with great economic and environmental benefits. In order to reduce the energy consumption of the heat pump system, a model of conveying distance limit and a model of conveying energy consumption are established. Considering the running cost and initial investment of the system, the traditional friction resistance formula is economically optimized under the condition of the pipe price and the installation price. The economic friction resistance range (40 ~ 80 Pa / m). This value is smaller than the traditional economic friction resistance value, so the economy can be determined than the friction resistance of the water supply distance limit (1 200 ~ 2 500m), and thus guide the design of transmission and distribution networks to reduce and control Heat pump system transmission energy consumption ratio (10% ~ 20%).