商业建筑空调水系统中环路阻力分布模拟分析

本文在管网水力计算模型的基础上,建立回路优化的数学模型,可以对管网进行优化调节,以使所有用户的水流量达到设计流量.根据一个商业建筑空调实例,分析了空调水系统中的环路阻力分布状况.结果表明,对应建筑不同使用功能的空调系统分区,其水系统各支路之间设计压力损失相差较大.为了实施有效合理的初调节,有必要进行管网的模拟初调节,掌握所有水系统用户的初始水量分配,且能找出管网中真正的最不利环路.

Simulation analysis of loop resistance distribution of air conditioning water systems in commercial buildings

Based on the hydraulic calculation model of pipe networks,a mathematical model of loop optimization is developed,which can make the optimal regulation of pipe networks to satisfy the design discharge of chilled water for all users.An air conditioning example in the practical commercial building was presented and the loop resistance distribution of air conditioning water system is analyzed.The result indicates that the designed pressure loss of water systems is large among various loops for different air conditioning system zones.For achieving effective and reasonable initial adjusting,it is necessary for pipe networks to carry out simulation regulation in order to obtain the initial water distribution for all water system users,and proper index circuit of pipe networks can be found.