再生水补给景观河流用水的方案研究——以宣化区柳川河为例

Research on the Scheme of Supply-reclaimed Water for Landscape River——Taking Liuchuan River of Xuanhua District as an example

柳川河综合治理工程共分为三期进行,由于一、二、三期柳川河景观河道地形高差较大,选定串联分区的模式进行再生水输送.在输水管道上预留取水口,为城市绿地灌溉、道路清洗以及洗车用水等提供再生水源.充分利用现状地形进行加压泵站设计,有效降低泵站后期运行费用.根据对两种管材的经济、技术指标比选,选用两种管材相结合的方式进行管道铺设,并从基础、接口、阀门安装等方面简要介绍了管道施工方案.

The comprehensive treatment proj ect of Liuchuan River is divided into three stages.Since the terrain elevation of Liuchuan River is relatively large in the three stages,the mode of series parti-tion is chosen to transport reclaimed water.Water intake is reserved on the water delivery pipe to supply reclaimed water for urban green irrigation,road cleaning and car-washing water,etc.By make full use of present terrain,pump station is designed to effectively reduce the running cost of pumping station.According to the comparison between the two kinds of tubes in terms of econom-ic and technical indicators,two pipes are chosen to lay pipeline for combination.The pipeline con-struction scheme is briefly introduced in this paper form the aspects of foundation,interface,and valve installation,etc.