Separate system type initial rainwater regulation and storage pool

Abstract

The invention discloses a separate system type initial rainwater regulation and storage pool. The separate system type initial rainwater regulation and storage pool is characterized by comprising a natural water drainage unit and a buffer regulation and storage unit which are arranged in the water flow direction, the natural water drainage unit comprises a first buffer pool and a first hydraulic automatic tilting gate, a water inlet pipe is arranged on the upstream part of the first hydraulic automatic tilting gate in the first buffer pool, a natural water drainage outlet is formed in the downstream part of the first hydraulic automatic tilting gate in the first buffer pool, the buffer regulation and storage unit comprises a second buffer pool communicated with the first buffer pool, and a regulation and storage pool body, and the second buffer pool is communicated with the regulation and storage pool body through a second normally-open hydraulic automatic gate. According to the separate system type initial rainwater regulation and storage pool, initial rainwater separation is achieved, rainwater drainage is controlled and regulated according to the different rainfall amount, pollution caused when initial rainwater is directly drained and water accumulation in towns are effectively prevented, the structure is simple, the cost is low, full-automatic control can be achieved, manual operation is not needed, and regulation and storage are safe and reliable.

Description

technical field [0001] The invention relates to a drainage system, in particular to an initial stage rainwater storage tank of diversion system. Background technique [0002] After the initial rainwater scours the air and the surface, it will carry a large amount of toxic and harmful substances. If the initial rainwater is discharged directly without treatment, the water body will be seriously polluted. The separate drainage system sends all urban sewage to the sewage treatment plant for treatment, but the initial rainwater is directly discharged into the water body without treatment, which will also cause serious pollution to the urban water body. [0003] In the early stage of rainfall, road dust, mud, sand, oil, and even garbage quickly flow into the drainage pipes (canals) along with the initial rainwater, and the concentration indicators of major pollutants such as BOD, COD, and SS are even close to and reach the water inlet standard of the sewage treatment plant. In v...

AI Technical Summary

Problems solved by technology

The existing initial rainwater storage tank has the following disadvantages: 1) At the water inlet of the storage tank, the water level needs to be controlled. In China, manual or electric gates are mainly used, but this control method has opening and closing time. Shortcomings such as long and unreliable work, there is a lag in the regulation of rainwater, and it is easy to form waterlogging, resulting in urban waterlogging; 2) The control of initial rainwater interception flow is vague and extensive. Pollution, if there is too much initial rain in the interception, it will cause waste and unreasonable use of the limited resources of the rainwater storage tank. In addition, the treatment capacity of the sewage plant is also very high.

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