调蓄池真空冲洗系统设计及施工

Vacuum Flushing of Rainwater Storage Tank Design and Construction

雨水调蓄池作为一项行之有效的控制初期雨水污染的工程性措施,近几年以来,在国内上海、北京等地开始设计、建设、运行雨水调蓄池。因初期雨水中含有大量悬浮颗粒及有机污染物,在调蓄池放空以后需及时对池底的沉积物进行有效的冲洗和消除。真空冲洗作为一种新型的冲洗清淤方法,利用虹吸效应来控制存水室水量,当水池中的水放空之后,开启真空隔膜阀,存水室中的冲洗水进入水池并带走水池中的淤泥,具有结构简单、节约水资源、效率高、操作简便等优点。并且基于长春市欢乐岛调蓄池,本文提出来了真空冲洗系统的全套施工经验,对调蓄池的施工具有指导意义。

Rainwater storage tank is an effective engineering measure to control the pollution of early rainfall. In recent years,it starts to design,build,and run rainwater storage tank in shanghai,Beijing and other places. Because of the most amount of suspended particles and organic pollutants in the early rainfall,the rubbish should be flushed and eliminated in time. Vacuum flush as a new method of washing and silting,it uses the siphon effects to control the of water in the water room. When the water is empty,the flush water from the storage room into the sink and take the rubbish opening the diaphragm valve. Vacuum flush of rainwater storage tank have the advantage of simple structure,Save water,more efficient,and so on. This paper presents the complete construction experience of vacuum flushing system on the base of Huan Le Dao rainwater storage tank of Changchun city,and it is of guiding significance for the construction of the reservoir.