上海城市屋面雨水利用设施长期运行效率分析  

Long-term Operational Efficiency Analysis of Roof Rainwater Utilization System in Shanghai City

作　　者：程江 丁敏 潘炜 程晓波 祁继英 张留瓅 

机构地区：[1]上海市城市排水有限公司,上海200233

出　　处：《中国给水排水》2010年第16期43-47,共5页China Water & Wastewater

基　　金：上海市城市排水有限公司科研项目(2010-1;2010-4);上海市城市建设投资开发总公司科研项目(2009)

摘　　要：利用上海地区2000年—2009年的降雨资料,模拟了屋面雨水利用设施的长期运行效率,并分析了影响运行效率的主要因素。研究结果显示:①屋面雨水利用设施具有良好的长期运行效率,在雨水用量为100L/(d.户)、屋面雨水蓄积量为40L/m2的条件下,系统可保持平均为90%以上的长期运行效率;②屋面雨水利用设施可有效调蓄雨水径流和延迟径流产生时间,当屋面雨水蓄积量>50L/m2时,系统可充分调蓄5年一遇的暴雨屋面径流,极端情况下可削减径流深约25.1mm;③单位面积屋面雨水使用量和单位面积屋面雨水蓄积量是影响系统长期运行效率的两方面重要因素。Based on the precipitation data from 2000 to 2009 in Shanghai, the long-term operational efficiency of roof rainwater utilization system was simulated, and the main factors affecting the operational efficiency were analyzed. The results indicate that （1） The roof rainwater utilization system has better long-term operational efficiency, and the system can keep operational efficiency of above 90% when the rainwater consumption is 100 L/d, and the roof rainwater storage quantity is 40 L/m^2 ; （2） The system can effectively store rainwater runoff and delay runoff generation time. The system can store the roof runoff during a storm with 5-year return period when the roof rainwater storage quantity is more than 50 L/ m^2, and the runoff depth of about 25.1 mm can be reduced in an extreme condition; （3） The rainwater consumption per unit area and the roof rainwater storage quantity per unit area are the two important impact factors on the long-term operational efficiency of roof rainwater utilization system.

关 键 词：降雨 屋面雨水利用 运行效率 调蓄 

分 类 号：TU992.3[建筑科学—市政工程]