海绵城市建设中嵌入式雨水收集系统设计研究  

Design of embedded rainwater collection system in sponge city construction

作　　者：何茜[1] 

机构地区：[1]西昌学院工程技术学院,四川西昌615013

出　　处：《现代电子技术》2017年第21期141-144,共4页Modern Electronics Technique

基　　金：四川省教育厅科研基金项目(17ZB0403)

摘　　要：城市水资源系统是大自然系统中的一个子系统,令城市中雨水资源得到良好利用可达到改善区域环境的目的,提出对海绵城市建设中嵌入式雨水收集系统进行设计。首先,根据收集方式的不同概括为屋面雨水收集、路面雨水收集及绿地雨水收集,通过对年雨水量的计算获取集雨量数据,利用径流系数了解地面汇水面积、地面坡度、建筑密度分布及路面铺砌情况,对雨水管渠进行设计初步完成嵌入式雨水收集系统;其次,对收集后的雨水采用初期雨水弃流和旋流分离污染物控制处理技术,利用雨水径流对污染物的冲刷规律和输送规律对雨水中的杂质和非点源污染进行控制,再通过旋流分离器对雨水中难以分离的泥沙实现分离,通过以上步骤即完成了城市雨水收集系统的综合设计。实验证明,运用该嵌入式雨水收集系统可提高对雨水资源的利用率。The city water resource system as a subsystem of the nature system makes good use of rainwater resource in the city to improve the regional environment. In this paper,an embedded rainwater collection system in the sponge city construction is put forward. According to the different collection methods,the roof rainwater collection,road rainwater collection and green area rainwater collection are summarized. The annual rainfall is calculated to collect the rainfall data,and the runoff coefficient is used to understand the ground catchment area,ground slope,road paving and building density distribution to preliminarily design the rainwater sewer for the embedded rainwater collection system. The initial rainwater drainage control technology and cyclone separation control technology are used to process the pollutants in the collected rainwater. The scouring rule and transportation rule of rainwater runoff for pollutants are used to control the impurity and non-point source pollution in rainwater,and then the cyclone separator is adopted to separate the sediment which is difficult to separate from the rainwater. By means of the above steps,the comprehensive design of the city rainwater collection system is accomplished. The experimental results show that the embedded rainwater collection system can improve the utilization of rainwater resource.

关 键 词：海绵城市 雨水收集系统 雨水利用率 嵌入式系统 

分 类 号：TU991.114[建筑科学—市政工程] TU178