基于试验与数学模型的多层建筑物直供水水量及压力特性研究

A Study of Flow & Pressure Features of Direct Water Supply in a Multi-story Building Based on Experiment & Mathematical Modeling

在某5层办公楼开展直供水试验,获得楼层的供水压力和流量数据,并构建建筑物各楼层水头损失的概化模型。率定和验证结果表明模型方法合理,可较好地模拟建筑物各楼层的压力-流量。模型灵敏度分析结果表明,350 k Pa的供水压力对第4层的供水能力已达到极限。试验成果和模型方法为我国建筑物直供水改造提供基础信息和方法指导。

An experiment of direct water supply is conducted in a five-story building,during which the flow and pressure at each story are obtained.On the basis of the experiment results,a generalized head loss model is established for all stories.The model calibration and verification results have indicated that the modeling methodology is appropriate and can provide reasonable description of pressure and flow features at each story.The results of sensitivity analysis have shown that,for the experiment building,the water supply reaches the limit at the 4th story under the 350 kPa supply pressure.The experiment results and the proposed model can provide basic information and the methodology for conversion of direct water supply in China.