智慧水箱径流调控效益研究  

Runoff Control Performance of Smart Tanks

作　　者：魏祯 张守红[1,2,3] 李睿贤 张文龙 陈都伟 Wei Zhen;Zhang Shouhong;Li Ruixian;Zhang Wenlong;Chen Duwei(School of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;National Station for Forest Ecosystem Research in Ji Country,Linfen,Shanxi 042200,China;Beijing Engineering Research Center of Soil and Water Conservation,Beijing 100083,China)

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]山西吉县森林生态系统国家野外科学观测研究站,山西临汾042200 [3]北京市水土保持工程技术研究中心,北京100083

出　　处：《水土保持研究》2024年第3期222-229,共8页Research of Soil and Water Conservation

基　　金：国家自然科学基金项目“城市雨水利用工程径流控制与供水功能变化机理与优化调控”(52279001)。

摘　　要：[目的]探究智慧水箱的径流调控效益变化规律,定量解析关键因素对其径流调控效益的综合影响,以期为智慧水箱的水文设计和径流调控效益评估提供科学参考。[方法]基于日降雨和日需水数据,构建智慧水箱水量平衡模型,采用雨水截留率、溢流率和溢流频率3个指标综合评估智慧水箱的径流调控效益,分析了智慧水箱的径流调控效益变化规律,定量解析水箱容积、水箱排放上限和降雨强度对智慧水箱径流调控效益的影响。[结果](1)智慧水箱和普通水箱雨水截留率相等,均随水箱容积的增大而增加。水箱容积为0~100 m^(3)时,雨水截留率为0~87%;(2)智慧水箱的溢流率比同容积普通水箱低0~19%,且溢流率随水箱排放上限的增大而减小;(3)智慧水箱的溢流频率比同容积普通水箱低0~13%,且溢流频率随降雨强度的增大而增加。[结论]智慧水箱径流调控效益优于普通水箱,可以通过增加水箱容积和排放上限,降低强降雨条件对智慧水箱径流调控效益的影响。[Objective]This study aims to explore the variation of runoff control performance of smart tanks,quantitatively to analyze the influence of key factors on their performance,thereby providing scientific referencesfor the design and runoff control performance evaluation of smart tanks.[Methods]This study developed a smart operating rule which was used for a tank water balance model based on daily rainfall and daily water demand data.The runoff control performance of the smart tank was quantitatively evaluated through three indicators,i.e.,stormwater capture efficiency,overflow rate,and overflow frequency.The influence of three main factors,i.e.,tank size,tank discharge upper limit,and rainfall intensity,on the three indicators was quantitatively analyzed to reveal the change rule of runoff control performance of smart tanks.[Results]The stormwater capture efficiencies of the smart tank and the conventional tank are equal and both rise with the increase in tank size.When the tank size ranges from 0 to 100 m^(3),the stormwater capture efficiency ranges from 0 to 87%.The overflow rate of the smart tank is 0 to 19%lower than that of the conventional tank of the same size.The overflow rate decreases with the growth of the discharge upper limit.The overflow frequency of the smart tank is 0 to 13%lower than that of the conventional tank of the same size.The overflow frequency rises with the increase in rainfall intensity.[Conclusion]The runoff control performance of smart tanks is better than that of conventional tanks.The impact of heavy rainfall intensity on the runoff control performance of smart tanks can be reduced by increasing tank size and discharge upper limit.

关 键 词：雨水收集利用 智慧水箱 雨水截留率 溢流率 溢流频率 

分 类 号：TU991.34[建筑科学—市政工程]