周边进水周边出水沉淀池进水配水槽的设计

Design for distributing water trough of sedimentation of inlet and outlet water at periphery

周边进水周边出水沉淀池是在中心进水沉淀池基础上出现的一种沉淀效率较高的新池型,与中心进水、周边出水的辐流沉淀池相比,其设计表面负荷可提高1倍左右,因此在水处理工程中得到越来越广泛的应用。但是运行效果受其配水槽配水均匀性的制约,因此配水槽是周边进水周边出水沉淀池的关键部位。目前常用设计方法是等孔距法。现介绍一种新型设计———变孔径法的设计计算。通过改变配水槽的配水孔径来达到配水均匀的目的。

The sedimentation of inlet and outlet water at periphery is a new and highly efficient tank. Compared with the sedimentation that the water enters from the center and goes out from periphery, the surface load may be doubled , and so it is widely used for water treatment project. The running effect is decided by the distributing water uniformity of distributing water trough, so the distributing water trough is the key part. Now the hole interval equal method is often used for the design of distributing water hole of the distributing water trough. A new kind of design method——changing hole diameter method that realizes the distributing water uniformity by changing the distributing water hole diameter of the distributing water trough is introduced.