高层住宅小区二次供水系统设计秒流量计算准确性研究  

Research on the Accuracy of Design Flow Rate Calculation for Secondary Water Supply Systems in High-rise Residential Areas

作　　者：贺鹏鹏 鲁天柱 马晓妍[2] 赵凤霞 张军[1] 邢孟 贺菊花 刘孝坤[4] HE Pengpeng;LU Tianzhu;MA Xiaoyan;ZHAO Fengxia;ZHANG Jun;XING Meng;HE Juhua;LIU Xiaokun(China Northwest Architectural Design And Research Institute Co.,Ltd.,Xi'an 710018,China;School of Environmental and Municipal Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Yulin Yuyang District Water Conservancy Bureau,Yulin 719000,China;Xi'an Municipal Engineering Design&Research Institute Co.,Ltd.,Xi'an 710068,China)

机构地区：[1]中国建筑西北设计研究院有限公司,西安710018 [2]西安建筑科技大学环境与市政工程学院,西安710055 [3]榆林市榆阳区水利局,榆林719000 [4]西安市政设计研究院有限公司,西安710068

出　　处：《给水排水》2025年第3期97-103,共7页Water & Wastewater Engineering

基　　金：中国建筑西北设计研究院有限公司基金(NB-2020-GPS-03)。

摘　　要：以西安市某高层住宅小区的二次供水系统为研究对象,分析了该供水系统的流量变化,探讨了设计秒流量计算公式中的参数取值及其对计算结果的影响。研究发现,《建筑给水排水设计标准》(GB 50015-2019)秒流量计算值与实测值之间存在显著偏差,最大可达7.74倍;实测的用水定额、时变化系数与标准推荐值也存在较大差异,即使采用实测用水定额、时变化系数等参数,秒流量计算值与实际值仍存在较大差异,提示现有设计秒流量计算公式的普适性存在问题,急需优化;通过敏感性分析进一步发现,用水定额对设计秒流量影响最显著。建议在二次供水系统新建或改造设计与运行中,应充分调研项目所在地的实际用水数据,并能在《建筑给水排水设计标准》(GB 50015-2019)修订过程中改进流量计算公式,提高设计精度以减少能源浪费。This paper takes the secondary water supply system of a high-rise residential com-munity in Xi'an as the research object,analyzes the flow change the water supply system,and discusses the parameter selection in the design formula for calculating the peak flow rate and its impact on the calculation results.The study found that is a significant deviation between the calculated value of the peak flow rate and the measured value,with a maximum of 7.74 times.The measured water quota and time variation coefficient also differ greatly from the recommended values in the standard,leading to the inadequacy of the calculation formula.Even if the measured water quota,time variation coefficient,and other parameters are used,there is still a large difference between the calculated peak flow rate and the actual value,indicating that theality of the existing design peak flow rate calculation formula is problematic and needs urgent optimization;further sensitivity analysis found that the water consumption quota has the most significant impact on design peak flow rate.It is suggested that in the design and operation of new or renovated secondary water supply systems,the actual water consumption data at the project location be fully surveyed,and the flow rate calculation formula should be improved in the process of revising the Standard for design of building water supply and drainage(GB 50015-2019)to enhance the design accuracy and energy waste.

关 键 词：二次供水系统 住宅小区 用水定额 设计秒流量 

分 类 号：TU991[建筑科学—市政工程]